Front and back staggered stacking mechanism of sheet-fed digital ink-jet printer

Abstract

The utility model discloses a front and back staggered stacking mechanism of a sheet-fed digital ink-jet printer, which comprises a fixed paper blocking plate and a movable paper blocking plate, the fixed paper blocking plate is arranged above the front end of a paper collecting table of the printer, and the movable paper blocking plate is arranged above the front end of the paper collecting table of the printer in a vertical lifting manner and is positioned on the rear side of the fixed paper blocking plate; the movable paper blocking plate is provided with a paper blocking station and an avoiding station, the paper blocking station is formed when the movable paper blocking plate vertically descends to a low point, and the avoiding station is formed when the movable paper blocking plate vertically ascends to a high point. The movable paper blocking plate adopts a vertical lifting mode to achieve switching between a paper blocking station and an avoiding station, so that front-back staggered stacking of paper piles is achieved, the structural design is simple, operation and control are convenient, the movable paper blocking plate cannot interfere with the aligned and stacked paper piles in the station switching process, and the stacking uniformity is good.

Description

Technical Field

[0001] The utility model belongs to the technical field of inkjet printing machinery, and particularly relates to a front and rear dislocation stacking mechanism for a single-sheet digital inkjet printer. Background Art

[0002] The single-sheet digital inkjet printing machine can perform single-sided printing or double-sided printing operations on single sheets according to the printing requirements of customers. After the inkjet printing is completed, a paper collecting device is required to collect the printed paper. Generally, the paper is stacked in the paper collecting table under the action of inertia to complete paper collection. The stacked paper needs to be stacked and bundled in a certain quantity. The operator needs to divide a large stack of paper into multiple small stacks according to the quantity, and then stack them in a staggered manner for easy counting and bundling and packaging.

[0003] The existing digital inkjet printers are usually provided with a left and right dislocation stacking mechanism, which can automatically realize the counting stacking and left and right dislocation stacking of paper. However, the design of this stacking mechanism for realizing left and right dislocation is relatively complex, and the installation and manufacturing costs are relatively high.

[0004] In addition, there is a paper stacking mechanism using the front and rear dislocation stacking method in the stacker on some corrugated cardboard production lines. For example, Chinese Patent CN102295185A discloses a cardboard stacker and its front and rear dislocation stacking method. After counting, through the dislocation movement of the movable faucet and the small baffle, the stacker stacks the cardboard to complete the front and rear repeated dislocation stacking. The stacking height can reach more than 200 corrugated cardboard sheets, without manual repeated counting and restacking, and the automated operation stacking efficiency is high. On the one hand, the structure of this cardboard stacker is relatively complex, and it can only be applied to corrugated cardboard with a relatively large thickness, and cannot be applied to printing papers such as newsprint or copperplate paper. On the other hand, when this cardboard stacker performs front and rear alternating dislocation stacking, the small baffle needs to extend forward from the large baffle. In this way, it is easy for the small baffle to interfere with the already stacked paper stack during the extension process, resulting in the front end of the already stacked paper stack not being aligned, thus affecting the stacking neatness. Summary of the Utility Model

[0005] The technical problem to be solved by the utility model is to provide a front and rear dislocation stacking mechanism for a single-sheet digital inkjet printer with a simple and reasonable structure design, convenient control and operation, which can realize the front and rear dislocation stacking of paper stacks and has good stacking neatness.

[0006] To solve the above technical problem, the technical solution of the utility model is as follows:

[0007] The front and rear dislocation stacking mechanism for a single-sheet digital inkjet printer includes:

[0008] A fixed baffle plate, fixedly installed above the front end of the paper collecting table of the printer;

[0009] The movable baffle is vertically liftably installed above the front end of the delivery table of the printing press and behind the fixed baffle. The movable baffle has a paper blocking position and an avoidance position. When the movable baffle vertically descends to the lowest point, it forms the paper blocking position. When the movable baffle vertically ascends to the highest point, it forms the avoidance position.

[0010] As a preferred technical solution, a support beam is fixedly installed above the front end of the delivery table of the printing press, and the fixed baffle is fixedly installed below the support beam.

[0011] As a preferred technical solution, a lifting guiding mechanism is arranged between the movable baffle and the support beam.

[0012] As a preferred technical solution, the lifting guiding mechanism includes guiding columns fixedly installed at the upper end of the movable baffle, and guiding holes are formed in the support beam and are matched with the guiding columns.

[0013] As a preferred technical solution, a push plate is installed at the top end of the guiding column, and the push plate is connected to a lifting driving mechanism.

[0014] As a preferred technical solution, the lifting driving mechanism includes a driving cam, and a driven wheel matched with the driving cam is installed on the push plate.

[0015] As a preferred technical solution, a return spring is sleeved on the guiding column between the push plate and the support beam.

[0016] As a preferred technical solution, both the fixed baffle and the movable baffle are in a fence shape.

[0017] Compared with the prior art, the present utility model has at least the following beneficial effects: The movable baffle is vertically liftably installed above the front end of the delivery table of the printing press and behind the fixed baffle. The movable baffle has a paper blocking position and an avoidance position. When the movable baffle vertically descends to the lowest point, it forms the paper blocking position. When the movable baffle vertically ascends to the highest point, it forms the avoidance position. When the paper stacks are front-aligned, the movable baffle vertically ascends to the avoidance position. After the printed paper is output, when the paper head reaches the fixed baffle, it is blocked and stopped. By counting, the front alignment stacking of a set number of papers can be realized. When the paper stacks are rear-aligned, the movable baffle descends to the paper blocking position. After the printed paper is output, when the paper head reaches the movable baffle, it is blocked and stopped. By counting, the rear alignment stacking of a set number of papers can be realized. The movable baffle realizes the switching between the paper blocking position and the avoidance position by means of vertical lifting. The structure design is simple, the operation and control are convenient, and there will be no interference with the stacked paper pile during the position switching process, and the stacking neatness is good. Description of the Drawings

[0018] The following drawings are only intended to illustrate and explain the present utility model, and do not limit the scope of the present utility model. Among them:

[0019] Figure 1 is the front view structural schematic diagram of the embodiment of the present utility model;

[0020] Figure 2 is the right view structural schematic diagram of the embodiment of the present utility model;

[0021] Figure 3 is the state reference diagram when the movable baffle rises to the avoidance station;

[0022] Figure 4 is the state reference diagram when the movable baffle descends to the paper blocking station;

[0023] Figure 5 is the state reference diagram when the papers are stacked with the front aligned (the movable baffle is in the avoidance station);

[0024] Figure 6 is the state reference diagram when the papers are stacked with the back aligned (the movable baffle is in the paper blocking station). Detailed implementation manners

[0025] The present utility model will be further described below in conjunction with the drawings and embodiments. In the following detailed description, only some exemplary embodiments of the present utility model are described by way of illustration. Undoubtedly, those of ordinary skill in the art can recognize that the described embodiments can be modified in various different ways without departing from the spirit and scope of the present utility model. Therefore, the drawings and the description are illustrative in nature and are not used to limit the protection scope of the claims.

[0026] As Figures 1 to 6 shown, the front and back offset stacking mechanism of a single-sheet digital inkjet printer includes a fixed baffle 1 and a movable baffle 2. Both the fixed baffle 1 and the movable baffle 2 are in a fence shape, and a plurality of feet 10 for blocking the paper heads of the papers are respectively formed at their bottoms.

[0027] The fixed baffle 1 is fixedly installed above the front end of the paper receiving table 3 of the printer; the movable baffle 2 is vertically liftably installed above the front end of the paper receiving table 3 of the printer and is located behind the fixed baffle 1. The movable baffle 2 has a paper blocking station and an avoidance station. When the movable baffle 2 vertically descends to the lowest point, it forms the paper blocking station, and when the movable baffle 2 vertically rises to the highest point, it forms the avoidance station.

[0028] Refer to Figure 1, in this embodiment, a support beam 4 is fixedly installed above the front end of the delivery table 3 of the printing press. The support beam 4 can be installed on the frame above the delivery table of the printing press. The fixed baffle 1 is fixedly installed below the support beam 4 through two side arms. Of course, the fixed baffle 1 can also adopt other fixed installation methods, which should all fall within the protection scope of the present utility model.

[0029] To ensure the lifting stability of the movable baffle 2, a lifting guiding mechanism is provided between the movable baffle 2 and the support beam 4. The lifting guiding mechanism includes two guiding columns 5 fixedly installed at the upper end of the movable baffle 2. Guiding holes matching the guiding columns 5 are formed on the support beam 4. A push plate 6 is installed at the top end of the guiding column 5. The push plate 6 is connected to a lifting driving mechanism, and the push plate 6 can be driven to lift by the lifting driving mechanism, thereby driving the movable baffle 2 to move up and down.

[0030] Reference Figure 3 And Figure 4 , in this embodiment, the lifting driving mechanism includes a driving cam 7. The driving cam 7 is connected to a servo motor. A driven wheel 8 matching the driving cam 7 is installed on the push plate 6. A return spring 9 is sleeved on the guiding column 5 between the push plate 6 and the support beam 4. Reference Figure 3 , in the initial state, the remote point of the driving cam 7 is at point A, and the movable baffle 2 forms an avoidance station at the high position; Reference Figure 4 , when the remote point of the driving cam 7 rotates to point B, under the pressure of the driving cam 7, the return spring 9 is compressed and deformed, and the push plate 6 pushes the movable baffle 2 to vertically descend to the low point to form a paper blocking station; when the remote point of the driving cam 7 rotates back to point A again, under the elastic force of the return spring 9, the push plate 6 rises and resets, driving the movable baffle 2 to rise to the high point and return to the avoidance station. The above structure has the advantages of simple, compact structure and convenient design. Of course, other methods can also be used to realize the vertical lifting movement of the movable baffle 2, which should all fall within the protection scope of the present utility model.

[0031] Reference Figure 5 , when the paper heads are aligned and stacked in front, the movable baffle 2 vertically rises to the avoidance station. In this way, after the printed paper is output, when the paper head reaches the paper blocking foot of the fixed baffle 1, it is blocked and stopped, and the front alignment and stacking of a set number of papers can be realized through counting; Reference Figure 6, when the paper is stacked with the back aligned, the movable baffle 2 descends to the paper blocking station. In this way, after the printed paper is output, when the paper head of the paper reaches the paper blocking feet of the movable baffle 2, it is blocked and stops. By counting, the stacking of a set number of papers with the back aligned can be achieved. In this way, by switching the movable baffle 2 between the paper blocking station and the avoidance station, the front-back misaligned stacking of the paper stack can be realized, and there will be no interference with the already aligned and stacked paper stack during the station switching process. The stacking neatness is good and the operation and control are convenient.

[0032] The above are only the schematic specific embodiments of the present invention and are not intended to limit the scope of the present invention. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principles of the present invention shall fall within the scope of protection of the present invention.

Claims

1. Front and rear misaligned stacking mechanism of a single-sheet digital inkjet printer, characterized in that, Comprising: A fixed baffle plate, fixedly installed above the front end of the delivery table of the printing press; A movable baffle plate, vertically liftably installed above the front end of the delivery table of the printing press and located behind the fixed baffle plate. The movable baffle plate has a paper-blocking position and an avoidance position. When the movable baffle plate vertically descends to the lowest point, it forms the paper-blocking position. When the movable baffle plate vertically ascends to the highest point, it forms the avoidance position.

2. The front and back dislocation stacking mechanism of the single-sheet digital inkjet printer according to claim 1, characterized in that: A support beam is fixedly installed above the front end of the delivery table of the printing press, and the fixed baffle plate is fixedly installed below the support beam.

3. The front and rear dislocation stacking mechanism of the single-sheet digital inkjet printer according to claim 2, wherein: A lifting guiding mechanism is arranged between the movable baffle plate and the support beam.

4. The front and rear misaligned stacking mechanism of the single-sheet digital inkjet printer according to claim 3, wherein: The lifting guiding mechanism includes a guiding column fixedly installed at the upper end of the movable baffle plate, and a guiding hole matching with the guiding column is formed on the support beam.

5. The front and back misaligned stacking mechanism of the single-sheet digital inkjet printer according to claim 4, characterized in that: A push plate is installed at the top end of the guiding column, and the push plate is connected with a lifting driving mechanism.

6. The front and rear dislocation stacking mechanism of the single-sheet digital inkjet printer according to claim 5, characterized in that: The lifting driving mechanism includes a driving cam, and a driven wheel matching with the driving cam is installed on the push plate.

7. The front and rear misaligned stacking mechanism of the single-sheet digital inkjet printer according to claim 6, characterized in that: A return spring is sleeved on the guiding column between the push plate and the support beam.

8. The front and rear misaligned stacking mechanism of a single-sheet digital inkjet printer according to any one of claims 1 to 7, characterized in that: Both the fixed baffle plate and the movable baffle plate are in a fence shape.

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