CN1666943A - Printers with a paper separation reversing device - Google Patents

Abstract

A printer with a paper-separating and reversing device can switch the conveying direction of an object, and comprises a first paper-separating component, a second paper-separating component and a push rod. The push rod is arranged on one side edge of the first paper separating assembly and the second paper separating assembly and abuts against the first paper separating assembly and the second paper separating assembly so as to control the positions of the first paper separating assembly and the second paper separating assembly simultaneously.

Description

Printers with a paper separation reversing device

technical field

The invention relates to a printer with a paper separation and reversing device, in particular to a paper separation and reversing device with simple operation and low cost.

Background technique

Please refer to FIG. 1 . FIG. 1 shows a conventional paper separation and reversing device (disclosed in US Pat. No. 6,572,105 ) applied to business machines such as copiers, fax machines, and printers. The existing paper separation reversing device (diverter) 10' comprises a pair of ejector mechanism (actuator) (not shown in this figure), an inlet 12', upper and lower paper separator (upper and lower duplex unit) 13 ', 14' and multiple outlets 17', 18', 19'. The upper and lower paper separators 13', 14' respectively include upper and lower switching arms 15', 16'. The upper switching arm 15' of the upper paper separator 13' is located on one side of the paper separation reversing device 10', while the lower switching arm 16' of the lower paper separator 14' is located on the other side relative to the upper switching arm 15'. side.

The paper X enters the paper separation and reversing device 10' along the direction P from the inlet 12'. The paper separation and reversing device 10' of the printer can provide three selection directions of the printed paper X to the outlets 17', 18', 19', as shown by the arrows A, B and C in Figure 1, and can be selected according to the actual situation. The requirement is to switch between the three paper output directions A, B, and C.

A direction is the preset paper output direction, and the paper X will enter the output tray (not shown in the figure) after passing through the upper paper separator 13' from the A direction; the B direction is sent to the multifunctional paper processing device (finisher) ( The direction not shown in the icon) is generally used when printing a large amount of paper, and the paper will fall into the optional tray (tray), so as to facilitate operations such as binding, punching, automatic paging and automatic classification; C direction is Paper X is fed into the direction of the duplexer, which is not shown in this figure, and paper X enters the duplexer in this direction, where paper X is turned over and reenters the printer to print its back side, And complete double-sided printing.

An ejection mechanism 11' is respectively provided on both sides of the existing paper separation and reversing device 10', as shown in Figure 2, the switching function of the printer is coordinated by the ejection mechanism 11' of the paper separation and reversing device 10' of the printer Upper and lower paper separators 13', 14' to complete. Up and down arrows F on the left and right sides of the figure represent the action point and action direction of each ejector mechanism 11 '. The printer can decide which side of the ejection mechanism 11' works or both sides do not work according to the needs of printing. The ejector mechanism 11' on each side includes a push rod (ejector pin) 21' and a cam (the cam (cam) is not shown in the figure); since the two sides are designed symmetrically, only the ejector pin on the left is shown on the figure. Mechanism 11', the ejection mechanism on the right is not shown.

Please refer to FIG. 3A , in the default printing mode, the two ejection mechanisms 11' remain stationary, and the paper X can pass above the upper separator 13', which is the paper output direction A.

Please refer to Figure 3B, when the left ejection mechanism 11' is activated, the cam 22' rotates to move the push rod 21' upward, and the push rod 21' pushes the lower switching arm 16' of the lower paper separator 14' from bottom to top, At this time, the upper and lower paper separators 13' are lifted, and the paper X passes through the second paper output direction from below the lower paper separator 14'.

When the ejection mechanism 11' on the right is activated, the ejection mechanism 11' presses down the upper switching arm (not shown) of the upper paper separator 13', and the upper paper separator 11' is lifted, so that the paper X is released from the upper paper separator 13' and the lower separator 14' through the gap, as indicated by arrow C in Figure 3C. Therefore, the existing paper separation and reversing device 10' needs to be provided with a ejection mechanism 11' on both sides to realize the switching between the three paper output directions of the paper separation and reversing device of the printer.

However, since the existing paper separation and reversing device 10' requires one ejection mechanism 11' on one side, two transmissions (not shown) are also required inside the printer, and a transmission is arranged on one side of the paper separation and reversing device 10'. device, and connect the left cam 22' to move the push rod 21' upward, and set another transmission device on the right side of the paper separation reversing device 10' and connect the right cam 22' to move the push rod 21' downward , generating thrust in opposite directions on the left and right sides. Therefore, the existing paper separation and reversing device 10' needs to use a complex assembly of components, resulting in difficulty in assembly and increased manufacturing costs.

Contents of the invention

Therefore, the object of the present invention is to solve the above problems and provide a printer with a paper separation and reversing device, which can save assembly time and component costs.

According to the printer with the paper separation and reversing device of the present invention, the paper separation and reversing device can switch the conveying direction of an object, and the printer with the paper separation and reversing device includes a first paper separation assembly, a second paper separation assembly and a putter. The push rod is arranged on a single side of the first paper separation assembly and the second paper separation assembly and abuts against the first paper separation assembly and the second paper separation assembly to simultaneously control the movement of the first paper separation assembly and the second paper separation assembly. Location.

Also in the present invention, the first paper separation assembly includes a first switching arm, the second paper separation assembly includes a second switching arm, the first switching arm, the second switching arm and the push rod are located on the same side, and the push rod against the first switching arm.

In the present invention, the push rod further includes a slot, the second switching arm is partially accommodated in the slot, and the first switching arm is close to the top of the push rod.

In the present invention, the printer also includes a cam abutting against the bottom of the push rod, and the push rod can be switched between a first position, a second position and a third position through the rotation of the cam, wherein the second The height of the position is between the first position and the third position, and when the push rod is at the first position, the position of the push rod is the lowest.

Also in the present invention, the first paper separation assembly can move between a first upward position and a first downward position, and the second paper separation assembly can move between a second upward position and a second downward position When the push rod is at the first position, the first paper separation assembly is at the first sinking position and the second paper separation assembly is at the second sinking position, and the object passes through the upper surface of the first paper separation assembly; When the push rod is in the second position, the first paper separation assembly is in the first upward position and the second paper separation assembly is in the second upward position, so that the object passes under the second paper separation assembly; when the push rod is in the first upward position In the case of three positions, the first paper-separating assembly is at the first upward position and the second paper-separating assembly is at the second sinking position, so that objects can pass between the first paper-separating assembly and the second paper-separating assembly.

Also in the present invention, the first switching arm has a first protruding portion, which is close to the top of the push rod, and the second switching arm has a second protruding portion, which passes through the slot hole so that the cam can be pushed against the first push rod through the push rod. 1. The second protrusion; when the push rod is at the first position, the first protrusion is against the top of the push rod, and the second protrusion is located at the upper end of the slot; when the cam rotates, the push rod moves upward to the second position, the second protrusion is located in the middle of the slot; when the cam continues to rotate and the push rod continues to move upward to the third position, the second protrusion is located in the lower end of the slot.

In the present invention, the printer also includes a casing, the push rod also includes a chute and a positioning assembly, the casing has an extension part extending to the inside of the casing, and the positioning assembly is passed through the chute to connect the push rod. The rod and the extension allow the push rod to move only along the extending direction of the chute.

Also in the present invention, the printer further includes a driving device connected to and driving the cam.

Also in the present invention, the printer is an inkjet printer.

Also in the present invention, the printer is a laser printer.

The present invention also provides a paper separation and reversing device, which can switch the conveying direction of an object. The paper separation and reversing device includes a first paper separation component, a second paper separation component and a push rod. The push rod is arranged on a single side of the first paper separation assembly and the second paper separation assembly and abuts against the first paper separation assembly and the second paper separation assembly to simultaneously control the movement of the first paper separation assembly and the second paper separation assembly. Location.

Description of drawings

Fig. 1 is a schematic side view of an existing paper separation and reversing device;

Fig. 2 is a three-dimensional schematic diagram of an existing paper separation and reversing device;

Fig. 3A is a schematic side view of the existing paper separation and reversing device for paper output in the direction A;

Fig. 3B is a schematic side view of the existing paper separation and reversing device outputting paper in the B direction;

FIG. 3C is a schematic side view of the existing paper separation and reversing device for paper output in the direction C;

4 is a schematic diagram of a printer with a paper separation and reversing device according to the present invention;

FIG. 5A is a combined schematic diagram of the paper separation and reversing device of the printer of the present invention;

5B is an exploded schematic view of the paper separation and reversing device of the printer of the present invention;

6A-1 is a schematic diagram of the first position of the paper separation and reversing device of the printer of the present invention;

6A-2 is a schematic side view of the first position of the paper separation and reversing device of the printer of the present invention;

6B-1 is a schematic diagram of the first position of the paper separation and reversing device of the printer of the present invention;

Fig. 6B-2 is a schematic side view of the second position of the paper separation and reversing device of the printer of the present invention;

Fig. 6C-1 is a schematic diagram of the third position of the paper separation and reversing device of the printer of the present invention;

Fig. 6C-2 is a schematic side view of the third position of the paper separation and reversing device of the printer of the present invention;

Fig. 7 is a partial schematic diagram of the printer of the present invention.

Detailed ways

The content of each form disclosed in the present invention will be described in detail below with specific embodiments. In this embodiment, descriptions are mainly made for printers, and the present invention can also be applied to other devices with feeding devices or paper feeding mechanisms, such as copiers, facsimile machines, business machines, and the like.

FIG. 4 is a schematic diagram of a printer 100 with a paper separation and reversing device according to the present invention. The printer 100 includes a housing 30 , a paper separation and reversing device 10 and a driving device (not shown), wherein the paper separation and reversing device 10 and the driving device are respectively arranged in the housing 30 . The paper separation and reversing device 10 is used for assigning the conveying direction of objects such as paper. It should be noted that the present invention mainly proposes improvements to the paper separation and reversing device 10 of the printer, and other devices of the printer are omitted in the drawings for convenience and clarity of illustration.

FIG. 5A is an assembled schematic diagram showing the paper separation and reversing device 10 of the printer of the present invention, and FIG. 5B is an exploded schematic diagram showing the paper separation and reversing device 10 of the printer of the present invention.

As can be seen from FIGS. 5A and 5B, the paper separation reversing device 10 includes a frame 25, an ejection mechanism 11, and first and second duplex units (first and second duplex unit) 13,14.

The first and second paper separation assemblies 13 and 14 respectively include first and second switching arms (first and second arm) 15 and 16. The frame 25 includes at least two holes 251 , 252 corresponding to the first and second switching arms 15 , 16 respectively.

When combined, the first and second switching arms 15 , 16 are rotatably disposed in the holes 251 , 252 , so that the first and second paper separation assemblies 13 , 14 are fixed on the frame 25 . The ejection mechanism 11 is composed of a push rod 21 and a cam 22 , and is located on the same side 255 of the frame 25 as the first and second switching arms 15 , 16 .

In addition, it can be seen from the combination view in FIG. 5A that the first switching arm 15 is against the top 214 of the push rod 21 . The push rod 21 includes a slot 211 and at least one sliding slot 212 , wherein the slot 211 is used for inserting the second switching arm 16 of the second paper separating assembly 14 . The first and second paper separation assemblies 13 and 14 are movably arranged on the frame 25 through the formation of the first and second switching arms 15 and 16 and the ejection mechanism 11 to form an inlet 12 and an outlet 17, 18, 19. Three options to choose from.

As mentioned above, the paper enters the paper separation and reversing device 10 through the inlet 12, and the printed paper can go to one of the outlets 17, 18, 19, as shown in FIGS. 6A-1 to 6C-2. The cam 22 is connected to the bottom 215 of the push rod 21, and the connecting portion 221 of the cam 22 is connected to a driver (not shown). The driver drives the cam 22 to rotate, so that the push rod 21 stays at three positions with different heights.

Therefore, push rod 21 can be in a first position (shown in Figure 6A-1 and Figure 6A-2), a second position (shown in Figure 6B-1 and Figure 6B-2) and a third position ( As shown in Figure 6C-1 and Figure 6C-2), the height of the second position (Figure 6B-1, Figure 6B-2) is located at the first and third position (Figure 6C-1, Figure 6C-2 ), and if the first paper separation assembly is used as a reference position, compared with the second and third positions, the first position (Figure 6A-1, Figure 6A-2) is the lowest, that is, the first position is when The state of the cam 22 and the push rod 21 at the lowest position. It should be noted that the first position is not necessarily the initial position, and the second position can also be transformed into the first position, so the transformation order of the three positions is not limited.

As shown in Figure 6A-1 and Figure 6A-2, when the push rod 21 is at the first position, in this example, the first position is the default starting position, the second protrusion 161 of the second switching arm 16 It is located at the uppermost end of the slot 211, and the first protruding part 151 abuts against the top 214 of the push rod 21, so that the first and second paper separating assemblies 13 and 14 are respectively located at the first and second sinking positions, At this time, the paper passes through the upper surface of the first paper separating assembly 13 , and the advancing path of the paper is shown by the arrow in the A direction.

As shown in Figure 6B-1 and Figure 6B-2, when the cam 22 rotates to move the push rod 21 upward to the second position, the push rod 21 pushes the first protrusion 151 of the first switching arm 15, so that the first protrusion 151 rotation, the first paper separation assembly 13 is linked by the first switching arm 15, so that the first paper separation assembly 13 is located at the first upward position, and at the same time, the second protrusion 161 of the second switching arm 16 is located at the slot 211. In the middle part, the second paper separation assembly 14 is also located at the second upward position at this time, and is attached to the first paper separation assembly 13, so that both of them face upward at the same time, so that the paper passes under the second paper separation assembly 14, The forward path of the paper is shown by the arrow in the B direction.

When the cam 22 continues to rotate and the push rod 21 continues to move upwards to the third position, the second protrusion 161 of the second switching arm 16 is located at the lowermost end of the slot 211, so that the first paper separation assembly 13 is lifted up and the second The paper separating assembly 14 sinks, and the paper passes between the first paper separating assembly 13 and the second paper separating assembly 14 , and the advancing route of the paper is shown by the arrow in the C direction.

Furthermore, the housing 30 of the present invention has an extension portion 31, which extends toward the inside of the housing 30, and has a sliding groove 212 and a positioning component 40 (such as a screw) on the push rod 21. By passing the positioning assembly 40 through the sliding slot 212 to connect the push rod 21 and the extension part 31 , the push rod 21 can only move along the extending direction of the sliding slot 212 . In other words, this design enables the push rod 21 to move only along the direction perpendicular to the axes of the switching arms 15 , 16 to prevent the push rod 21 from shifting.

To sum up, the cam 22 is driven by the driving device in the printer, and then the push rod 21 connected to the cam 22 passes through the protrusions 151, 161 of the two switching arms 15, 16 to push the upper and lower paper separation components 13, 14 respectively rotate to a predetermined angle, and stay in the corresponding position, up or down, to realize the switching between the three paper output directions of the paper separation reversing assembly.

It can be seen from the above description that the present invention provides a paper separation and reversing device, which can switch between three paper output directions with only one ejection mechanism, and achieve the same purpose as the paper separation in the prior art. After the invention improves the paper separation and reversing device, the direction switching operation of the printer paper becomes simple and convenient, and because the structure is quite simple, the assembly is easier and the manufacturing cost is reduced.

In addition, the size of the slot, the angle and length of the switching arm, and the size of the cam are all related to the lift distance of the push rod 21, so the present invention does not limit the size of the slot, the angle and length of the switching arm, and the size of the cam.

Although the present invention has been disclosed in conjunction with the above several preferred embodiments, it is not intended to limit the present invention. Anyone skilled in the art can still make some changes and modifications without departing from the spirit and scope of the present invention. , so the protection scope of the present invention should be defined by the claims.

Claims (13)

1. chopping machine with separation reversing arrangement, the direction of transfer of the changeable object of this separation reversing arrangement, this chopping machine with separation reversing arrangement comprises:

One first separation assembly;

One second separation assembly; And

One push rod is arranged on the single side of this first separation assembly and this second separation assembly and is resisted against this first separation assembly and this second separation assembly, to control the position of this first separation assembly and this second separation assembly simultaneously.

2. the chopping machine with separation reversing arrangement as claimed in claim 1, wherein, this first separation assembly comprises one first operating rocker, this second separation assembly comprises one second operating rocker, this first operating rocker, this second operating rocker and this push rod are positioned at same side, and this push rod is resisted against this first operating rocker.

3. the chopping machine with separation reversing arrangement as claimed in claim 2, wherein, this push rod also comprises a slotted eye, this second operating rocker part is contained in this slotted eye, and this first operating rocker is close proximity to the top of this push rod, and this push rod can switch between a primary importance, a second place and one the 3rd position, and wherein the height of this second place is between this first and the 3rd position, and when this push rod was positioned at this primary importance, the position of this push rod was minimum.

4. the chopping machine with separation reversing arrangement as claimed in claim 3, it also comprises a cam, is connected to the bottom of this push rod, the rotation by this cam can be switched this push rod between this primary importance, this second place and the 3rd position.

5. the chopping machine with separation reversing arrangement as claimed in claim 4, wherein, this first separation assembly can be faced upward one first and be moved between position and one first subsidence position, this second separation assembly can be faced upward one second and be moved between position and one second subsidence position, when this push rod is positioned at this primary importance, this first separation assembly is positioned at this first subsidence position and this second separation assembly is positioned at this second subsidence position, and this object is passed through by the upper surface of this first separation assembly; When this push rod was positioned at this second place, this first separation assembly was positioned at this first face upward position and this second separation assembly and is positioned at this second position of facing upward, and this object is passed through by the below of this second separation assembly; When this push rod was positioned at the 3rd position, this first separation assembly was positioned at this first face upward position and this second separation assembly and is positioned at this second subsidence position, makes this object by passing through between this first separation assembly and this second separation assembly.

6. the chopping machine with separation reversing arrangement as claimed in claim 5, wherein, this first operating rocker has one first protrusion, be close proximity to the top of this push rod, this second operating rocker has one second protrusion, pass this slotted eye, make this cam push against this first, second protrusion via this push rod; When this push rod was positioned at this primary importance, this first protrusion was resisted against the top of this push rod, and this second protrusion is positioned at the upper end of this slotted eye; When this cam rotation made this push rod be moved upward to this second place, this second protrusion was positioned at the pars intermedia of this slotted eye; When this cam is rotated further when making this push rod continue to be moved upward to the 3rd position, this second protrusion is positioned at the bottom of this slotted eye.

7. the chopping machine with separation reversing arrangement as claimed in claim 4, it also comprises a housing, this push rod also comprises a chute and certain hyte part, this housing has an extension, extend to this enclosure interior, by this positioning component is passed this chute,, this push rod only can be moved along the bearing of trend of this chute to connect this push rod and this extension.

8. one kind has the separation reversing arrangement, and the direction of transfer of a changeable object comprises:

One first separation assembly;

One second separation assembly; And

One push rod is arranged on the single side of this first separation assembly and this second separation assembly and is resisted against this first separation assembly and this second separation assembly, to control the position of this first separation assembly and this second separation assembly simultaneously.

9. separation reversing arrangement as claimed in claim 8, wherein, this first separation assembly comprises one first operating rocker, and this second separation assembly comprises one second operating rocker, this first operating rocker, this second operating rocker and this push rod are positioned at same side, and this push rod is resisted against this first operating rocker.

10. as claimed in claim 9 have a separation reversing arrangement, wherein, this push rod also comprises a slotted eye, this second operating rocker part is contained in this slotted eye, and this first operating rocker is close proximity to the top of this push rod, and this push rod can switch between a primary importance, a second place and one the 3rd position, and wherein the height of this second place is between this first and the 3rd position, and when this push rod was positioned at this primary importance, the position of this push rod was minimum.

11. as claimed in claim 10 have a separation reversing arrangement, it also comprises a cam, is connected to the bottom of this push rod, and the rotation by this cam can be switched this push rod between this primary importance, this second place and the 3rd position.

12. as claimed in claim 11 have a separation reversing arrangement, wherein, this first separation assembly can be faced upward one first and be moved between position and one first subsidence position, this second separation assembly can be faced upward one second and be moved between position and one second subsidence position, when this push rod is positioned at this primary importance, this first separation assembly is positioned at this first subsidence position and this second separation assembly is positioned at this second subsidence position, and this object is passed through by the upper surface of this first separation assembly; When this push rod was positioned at this second place, this first separation assembly was positioned at this first face upward position and this second separation assembly and is positioned at this second position of facing upward, and this object is passed through by the below of this second separation assembly; When this push rod was positioned at the 3rd position, this first separation assembly was positioned at this first face upward position and this second separation assembly and is positioned at this second subsidence position, makes this object by passing through between this first separation assembly and this second separation assembly.

13. as claimed in claim 12 have a separation reversing arrangement, wherein, this first operating rocker has one first protrusion, be close proximity to the top of this push rod, this second operating rocker has one second protrusion, passes this slotted eye, makes this cam push against this first, second protrusion via this push rod; When this push rod was positioned at this primary importance, this first protrusion was resisted against the top of this push rod, and this second protrusion is positioned at the upper end of this slotted eye; When this cam rotation made this push rod be moved upward to this second place, this second protrusion was positioned at the pars intermedia of this slotted eye; When this cam is rotated further when making this push rod continue to be moved upward to the 3rd position, this second protrusion is positioned at the bottom of this slotted eye.

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