KR20160119510A - Automatic Hot printer with sheet-seperation mechanism by air driven device - Google Patents

Abstract

The purpose of the present invention is to improve productivity by solving a problem of a sheet separating function of an automatic printing device illustrated in a patent document, providing an automatic counting function and convenience for loading a great plenty of paper, and providing a speed and manipulability better than that of a semi-automatic printing device and a manual printing device and multiple functions. According to a dynamical analysis of a sheet separating process, the separating process obtains the highest reliability if a resistance difference of a thin plate due to a bending moment applied when an object to be printed is bent by rotating a vacuum pad around an end of the object to be printed. In addition, the high reliability of holding the object to be printed with a clamp is obtained when transferring the object to be printed, and a transferring speed can be increased. In order to increase a printing speed by applying the simultaneity to the processes, the printing device is arranged in a rear side in a discharging direction, and a discharging device is arranged in a front end. In addition, left and right panels and a bottom panel are arranged to be perpendicular to each other inside a storage box to receive the objects to be printed in various sizes. The left and right panels and the bottom panels are controlled by an electronic motor and continuously operated by an automatic control. An automatic printing device with pneumatic sheet separating device is capable of automatically counting the number of printed objects and improving the reliability and preventing possibility of damage to the device by stopping the operation when carbon paper is exhausted or the printing device is malfunctioned due to defective installation of paper and giving an alarm to the outside.

Description

Automatic hot printer with sheet-seperation mechanism by air driven device

There are several kinds of popular information on the day when specific information is written on plastic packaging for food packaging, ballot, check, etc., and how to move the portion (hereinafter referred to as the head) and the printed matter to the printing position, And the principle of the mechanism part. The present invention relates to a head for performing a printing operation, a method of processing the object with pneumatic pressure and a link mechanism at a place where the object is loaded, a method for drawing the object one by one, and a combination thereof.

The utility model application No. 20-2000-0009410 has a simple principle and structure in some of the presently used methods, and separates the sheet by friction with a roller or a belt made of rubber, so that when the change of the friction property or the thickness of the object to be printed is changed , The sheet separation performance is changed, and it is difficult to cope with various materials and specifications. (It is difficult to quantitatively measure or evaluate in real time with respect to the frictional force.) And since the position of the object to be printed is not accurately regulated, the printing position can not be accurate (see Fig. 1A)

On the other hand, Patent Application No. 10-2010-0013725 discloses a method of adsorbing and transporting an object by using pneumatic pressure, but there is a visible mechanism of separating the objects by sheet, but by simply adsorbing the upper object with a few vacuum pads without quantitative evaluation , It is difficult to adsorb the object and transfer it at a high speed (due to resistance to air). Further, at the time of separation at a high speed, the engineering concept of separation from the underlying object does not exist. Therefore, the separating performance is relatively superior to that of the friction roller type, but there is a limit to the speed. Then, both sheets are separated and then printed. As a result, the object to be stacked on which the printed material is to be loaded must pass all the objects to be drawn next (see FIG. 1B). Is limited. Also, it is inevitable to pause for printing after withdrawal. As for the former, it is supported by the popular head of the rotary type. The inventors of the present invention conducted a test in consideration of the latter method, but excluded it because of a limitation in the drawing speed.

Patent Application No. 10-2010-0013725 Utility Model Application No. 20-2000-0009410

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Semi-automatic or manual type is popular because it is mechanically simple and cheap because it removes the printed matter by manpower after it is stamped. However, since the removal of the printed matter is the manpower, the effort of the operator is required for the printing time. The speed varies according to proficiency. And the number of prints is different every time, so the number of prints should also be counted. And, in addition to the date of manufacture, the name of the person in charge or the information for the production traceability of the food is too complex to be typed, depending on the current manual or semiautomatic popularity. Therefore, it can be said to be productive if seal stamping and sheet separating work are done automatically, and designation of stamp number, automatic labeling, attachment of RF ID tag, and the like are performed simultaneously.

       First, in the seal work, I'll list the problems with instrument handling

1. There are various kinds of popular heads, and it is necessary to implement a method of separating one thin sheet such as vinyl or paper in common, except that it may vary according to the nature of the printing job. A similar example is a bill counter, but focuses on the coefficients rather than complete separation, and is generally similar in size, so the change in size is not as large as the packaging. Therefore, a standard process model is set up that automatically recognizes or recognizes the specification, and then operates on the appropriate withdrawal conditions (position, size, vacuum pressure, etc.) of the adsorption pad.

2. Vinyl paper generally has much less stiffness than bending moment and compression, so it should be handled differently from paper currency counter. In other words, the internal resistance to maintain its shape is small, so another method must be found. In other words, at the time of withdrawal, it is pulled out so that tensile force is given to the envelope or paper in the longitudinal direction. (Resistance to tensile force is strongest)

3. Experimental results show that the vacuum force of the vacuum pad, such as patent application No. 10-2010-0013725, is effective only in the vertical direction of the pad, and sliding may occur in the direction perpendicular to the pad. (See Fig. 1C).

4. And, whenever there is a friction between another package and each time a sheet is taken out separately, static electricity is generated and it is likely to cause problems. Therefore, it is preferable to maintain a gap between the drawing material and the load during high-speed drawing. At the same time, at the time of drawing operation, low-pressure air is blown into the film between the two so as to flow through the air layer (see Fig. 1D).

5. Also, as shown in FIG. 1e, the opening portion of the packaging bag structure must be located in the backward direction of the traveling direction, so that obstruction due to air filling does not occur during the taking-out process. If it is loaded in the reverse direction, the air should be detected and removed.

6. Since large-sized packaging materials are very large in size (2-10 micrometers) compared to material thicknesses, it is difficult to keep their own shape, so it is preferable to load them in a horizontal position as much as possible. Due to the weight, there is a large friction with the upper material at the time of withdrawing from the lower part, so that it is less troublesome to pull out from the uppermost part, and a large number of sheets can be stored in the loader. (See Fig. 1F)

7. In the case of FIG. 1F, since the height of the object is reduced as the object is taken out, a compensation transfer to the object height must be performed, and there is a need for an electrical recognition and sensing method. This is achieved by receiving analog output from the surface layer of the print with a spring-loaded contact sensor.

8. As shown in FIG. 1G, when the entire pulling operation is performed by the pulling mechanism alone, the stroke of the apparatus becomes longer, so that a narrow width belt is provided at the end so that the belt completes the final discharging operation. In particular, since the upper belt speed and the lower belt speed must be the same, when the two belts are brought into contact, a friction wheel that is in automatic contact is placed so as to be precisely synchronized.

9. As shown in FIG. 1 (h), in order to increase the working speed, the apparatus for separating sheets separately from the hot spot is placed at the lower part, so that the work time is shortened because no spatial interference occurs even if two operations are simultaneously performed.

10. As shown in FIG. 1I, when the sheet is folded at a specific angle by bending only the end portion of the material so that the air can smoothly enter between the two materials even during high-speed operation, The bent portion is relatively small and the rigidity against deformation becomes large. Since the object to be contacted with the pad is large in the deformation force by the vacuum, it is adsorbed as desired. However, since the object underneath the pad is not affected by the vacuum pad at all and resistance against bending becomes large, You can.

11. Add a stopper so as to prevent the separated material from being pulled out with friction with other materials below, as in Fig. 1J, and provide an air jet nozzle. This stopper shall not interfere with the operation of Section 10 when it rotates and escapes when working in Paragraph 10 above.

12. The stack of paper must be capable of accommodating only the specifications of various packaging materials. In order to accommodate this, it is necessary to align the printed paper or envelope in the left and right direction and align the stacking direction. Therefore, the panel on the left and right and the panel on the bottom should be adjustable in size, and the upper and lower sides are not adjusted based on the lower side.

In addition, to withdraw to the bottom, the angle is assigned (40 degrees), and the left and right panel and bottom panel are operated by the motor (see Figure 1k).

 It has been known that the automatic daylight saving device such as the conventional utility model No. 20-2000-0009410 has been manufactured and used, but it is known that there are many problems due to frequent failures and lack of reliability. It's been 10 years since I first introduced it, and I still do not have a completely improved product. There are also many sheet cutting processes that are demanding, and the fully automatic type has a lot of manufacturing costs, so the automatic type does not have a comparatively great advantage compared to the semi-automatic or manual type.

However, the present invention for solving the above problems is characterized in that the reliability of the sheet separation process is significantly improved through qualitative and quantitative analysis for each process and experiment, and the sheet separation rate is increased, It is not necessary to continuously supply the packaging materials by securing a sufficient space for loading (200 mm thickness), to print only the necessary number of prints by electrical signal or simple operation as needed after loading a large amount, It contributes to the productivity by building the complete automation without.

In addition, it is possible to attach an automatic labeling machine to a popular site of the day, and it can be used as a sheet-separating device at the front end of the continuous process, so that an efficient production line can be constructed.

1A shows a product image similar to utility model application No. 20-2000-0009410
1B is a view showing a conveying section of the object to be conveyed in the loading box
1C is a view showing a fastening force according to the suction direction of the vacuum pad
Fig. 1 (d) illustrates the supply and operation of air for static electricity prevention and anti-
Fig. 1 (e) shows a case in which, in the case of wrapping paper,
FIG. 1F is a view showing a state in which the object is taken out from the loading box
Figure 1G shows the position of the final discharging belt conveyor
Fig. 1 (h) shows the arrangement of the sealed space and the sheet-
FIG. ≪ RTI ID = 0.0 > 1i < / RTI >
FIG. 1J is a diagram illustrating the operation of the stopper of the reference panel,
Figure 1K shows an adjustable panel structure of the loading box
FIG. 2A is a perspective view of the left and right panel (left and right direction)
FIG. 2B shows a bottom panel (thickness direction)
2C shows the position of the reference panel,
FIG. 2D is a view illustrating a sheet separating operation, a vacuum pad,
Figure 2e shows the clamping position and belt conveyor operation description
FIG. 2F is a flowchart
3A shows the initial position of operation of the vacuum pad,
FIG. 3B shows the position
Fig. 4A shows a state in which the pull-
Fig. 4B shows a state in which the pull-
FIG. 4C is a drawing of the standby position of the clamp
5 is a perspective view without the cover,
Figure 6 is a top view
FIG. 7 is a cross-
Fig. 8 is a cross-sectional view
Figure 9 is a side view of the cover-
10 shows an embodiment according to Patent Application No. 10-2010-0013725

Since the present invention relates to automatic fly popularity and can be divided into several tasks in terms of functions and processes,

1. Variable Loading Space and Adjustment Method

2. Single sheet separation operation and preparation for withdrawal

3. Single-draw operation

4. Discharge operation

5. Seal work or other work can be classified.

1. Variable Loading Space and Adjustment Method: In order to cope with various sizes of products, the product loading box should be non-fixed and variable. For the degree and reliability of the work, . Therefore, in consideration of the standard size of the object to be printed and considering the easiness of change (user operability), the dimension in the left and right direction can be recognized only for the first time, and the thickness direction is automatically recognized by the machine itself. As shown in Fig. 2A, the size recognition in the left and right direction has a driving mechanism that is driven simultaneously in the left and right direction, and the size is recognized by the contact sensor. The bottom panel, which is in the thickness direction, is automatically determined by control since the material is constantly changed as the material is drawn (see FIG. 2b). The reference panel near the draw-out side is fixed in position to provide collision and manipulation criteria with other panels. The reference panel is not controlled unlike the operation of other panels, and the position is automatically set by the spring (see Figs. 2a, 2b and 2c).

2. Sheet Separation Operation and Drawing Preparation Sheet separation is to be made in a structure that maximizes the difference in stiffness with respect to bending deformation, taking into account the characteristics of the material. As shown in FIG. 1i, the vacuum pad is attached to the two-bar linkage structure by the operation of a pneumatic cylinder, thereby realizing the same motion trajectory as the example. When the link 1 is rotated, the link 2 with the vacuum pad is initially turned at a high rotation angle and bent at the end of the vinyl or paper so that the other materials in the lower portion are not affected by the vacuum pressure and have bending rigidity. We stick to the original position and make this gap the principle of sheet separation. And the stopper must be rotated to the left in advance as shown in FIG. When the vacuum pad completes the removal process, the stopper returns to its original position. The clamp then waits and moves along the circular cam curve to enter the clamp while opening the jaw. When the entry is completed, the clamp is closed and the withdrawing operation is started again (see FIG. 2d).

3. Sheet Drawing Operation When the sheet separating operation and the clamping are completed, as shown in FIG. 2E, the vacuum pads attached to the ends of the upper left and right panels are advanced forward to raise the entire portion to 5 mm. When the cylinder is transported to the top, the vacuum is released, and low pressure air is blown from the lower stopper to between 5 mm. At this time, the drawing operation cylinder draws the object to the outside at a high speed. This was explained in Section 4 of the solution to the problem. Here, when the opening portion of the wrapping paper is loaded downward by the optical sensor installed on the side, it is inflated by the air, so that the inaccurate loading state can be grasped. At this time, the error state is informed to the outside, and the operation is stopped.

4. Discharge operation When the draw clamp reaches the desired position, the clamp jaw opens the print restraint and the upper and lower belt conveyors come into contact with each other and work to discharge to the final length of the print. When it is exposed to the outside by 90% or more, it spontaneously falls and is completely discharged to the outside (refer to FIG. 2E).

5. During the discharge operation by the belt conveyor such as stamping work or other work, the day's popularity is decided according to the external signal, or by the program which is set up by itself, ), When the seal is completed, a draw-out signal is sent to the controller to start the next draw-out operation. Even if there is another additional apparatus, the operation is completed and the draw-out enable signal is notified to the controller.

Before the discharge by the belt conveyor is normally completed, if the end of the object is detected by the sensor by the discharge completion sensor in FIG. 2E, the sheet separation process of the above 2 is performed simultaneously. (See Figure 2f)

At this time, a signal from a sealer or a labeler is also received, and an exchange of food or an error of the labeler is transmitted to the user as an optical (beacon) or sound and waits.

Claims (4)

As shown in FIG. 1G and the representative view, the object is transported from the top to the bottom of the object stack (see FIGS. 2A, 2B, and 2C)
As shown in Fig. 1H, the embossed portion and the draw portion are constituted (the leading portion of the drawing portion with respect to the paper advancing direction, the trailing portion of the embossed portion)
As shown in FIGS. 2c and 1k, the left and right alignment panels and the bottom surface transfer panel are crossed orthogonally and adjusted, the reference panel is fixed,
As shown in FIGS. 2d and 1i, after the vacuum pad is vacuum-adsorbed from the end of the paper or paper,
As shown in FIG. 1C,
As shown in Fig. 1D and Fig. 1J, there are provided a stopper for imparting anti-friction and anti-
As illustrated in FIG. 2E, a vacuum cylinder that assists the sheet separating function from the rear of the sheet is operated to form an air passage to perform a high-speed drawing operation,
As shown in Fig. 1G, the conveyor belt operates up and down to completely discharge it to the outside. After completion of discharging, the conveyor belt waits at the position shown in Fig. 4C,
The vacuum pad waits at the position of FIG. 3B,
The stopper goes to the closure position (Fig. 1J example)
The conveyor belts are separated up and down respectively,
In the automatic flying popularity structure operating according to the sequence described in FIG. 2f 2C and 1K, the left and right alignment panels are orthogonally intersected orthogonally by a bottom conveying panel inclined by 40 DEG, the reference panel is automatically aligned by a spring, and the left and right panels are aligned with the motor And the bottom panel is a load box (the sensor is retracted into the cylinder during the drawing operation) in which the position is automatically controlled by the resilient spring-supported analogue sensor illustrated in Fig. 1F, The vacuum pad as claimed in claim 1, wherein the vacuum pads are rotated up to 45 占 after vacuum or suction from the end of the paper sheet, 3a, Figure 3b)
The method according to claim 1, wherein, in order to simultaneously perform the imprinting operation and the drawing preliminary operation, the imprinting portion is located at the rear portion with respect to the advancing direction as shown in Fig. 1H, and the drawing portion and the discharging mechanism are arranged at the leading end position with respect to the paper advancing direction rescue

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