JP4760193B2 - Sheet-fed printed material transport device - Google Patents

Description

The present invention relates to a conveying apparatus of a single wafer printed matter to be subjected to a paper container for storing food and the like, in particular odor components from the printed surface, bad taste components, other components food contents side (back surface) about the conveying apparatus of a single wafer prints prevented from migrating to the surface.

  Paper containers are becoming more highly functional and higher performance year by year, and in particular, food applications are designed to maintain the quality of contents and improve the function of the containers. For example, it is well known to provide gas barrier properties or light shielding properties, and in addition to these high performances, printing is performed on the surface for the purpose of cosmetics and presentation of various information. It is common.

  Naturally, printing technology is used in the above-mentioned method for producing paper containers for food use, and printing is performed using a material called varnish that gives printing ink, gloss, etc. These materials include solvents, resins, additives, etc. It is often contained, and there is a concern that these components or components that are generated by a chemical change exert an influence on odor and taste (change in odor and taste) when the contents are filled.

  For printing for the paper container, a sheet-fed printing method is generally used, and the printed surface of the printed material after printing is stacked (stacked) on the back surface (content side). If the sheets are stacked at a relatively high temperature immediately after printing, the printed materials come into contact with each other with considerable adhesiveness due to temperature and weight.

  In this way, when laminated with the printed surface and the back surface in contact with each other, the film having the component (substance) that affects the odor and taste of the content on the back surface (in the case of food use, the side in contact with the content) In general, polyethylene film or the like is laminated.

  The current food container made with such a manufacturing method has a strange odor and taste after filling the contents, which may be a problem due to complaints from consumers. .

  In order to solve such problems, reviews of components such as printing inks and varnishes, and reviews of printing conditions have been made, but since the printed surface and back side of printed matter are in contact, there are not a few components. Moved to the back side, and the effect of improvement could not be fully exhibited.

  The present invention solves the problems of the prior art, and the problem is that when the printed sheets after printing are stacked, the printed surface and the back surface of the front surface are not brought into contact with each other. An object of the present invention is to provide a sheet-fed printed material transport device that prevents components such as printing ink and varnish from moving to the back surface.

In order to achieve the above-described object in the present invention, first, in the invention of claim 1, the printed sheets are conveyed one by one, and the printed sheets are reversed every other sheet. This is a sheet-fed printed material transporting device that allows the surfaces to be stacked side by side, and the mechanism for reversing the front and back of every other sheet consists of two endless chains that run in parallel with chain grippers. One endless chain has a straight path, and the other endless chain has a convex path in the middle, and is inverted by a chain gripper provided in the endless chain having the linear path. Pick up the front and rear ends of the printed sheet that does not require the sheet, and pick the front edge of the printed sheet that needs to be reversed with the chain gripper on the endless chain that has a convex path in the middle, Knob chain gripper equipped endless chain having a straight path, the conveying device sheet prints front and back of the sheet printed material requiring the inversion at the location of the convex path, characterized in that it is inverted It is a thing.

According to a second aspect of the present invention, the printed sheets printed on the surface are conveyed one by one, and the printed sheets are reversed every other sheet so that the surfaces are stacked in a bellows. The sheet-fed printed material conveying apparatus, wherein the mechanism for reversing the front and back every other sheet comprises two sets of endless chains that are provided with chain grippers and run in parallel or in parallel, and the one set of endless chains is a straight line. The other endless chain has a path in which the right and left are twisted and reversed in the middle, and the chain gripper provided in the endless chain having the linear path does not require reversal. The front end of the printed sheet that needs to be reversed is picked by the chain gripper provided on the endless chain that has a path that is twisted and reversed in the middle. In which the front and back of the sheet printed material requiring the inversion at the location of the route the left and right are reversed twist is a conveying device sheet printed matter characterized in that it is reversed.

According to a third aspect of the present invention, the printed sheets having the surface printed thereon are conveyed one by one, and the printed sheets are reversed every other sheet so that the surfaces are stacked in a stack. The sheet-fed printed material transporting apparatus, wherein the mechanism for reversing the front and back of every other sheet is composed of one set of chain grippers that run or two sets of endless chains that run in parallel. The trailing edge of the sheet printed material is picked and pushed by the chain gripper, and inserted into a case in which the sheet printed material requiring reversal and the sheet printed matter not requiring reversal are alternately inserted, and the sheet printed matter requiring reversal is inserted. The case is rotated halfway back and forth or back and forth, and the sheet printed matter in both cases is pulled out by picking the front end of the sheet printed matter with the chain gripper provided on the rear endless chain. It is obtained by a conveying device sheet printed material, characterized in.

  Since this invention is the above structure, there exist the following effects.

That is, according to the first to third aspects of the present invention, in the sheet-fed printed material conveying apparatus that conveys the sheet-fed printed matter whose surface is printed one by one, the sheet-fed printed matter is reversed every other sheet. By allowing the surfaces to be stacked together, the components such as printing ink and varnish on the printed surface of the surface come into contact with the contents such as food when a paper container for storing food is stored. Therefore, it is possible to provide a sheet-fed printed material transport device for paper containers that does not shift to the back surface and does not change the odor or taste of the contents.

Further, the invention according to the claim 1, mechanism for reversing the piece every other, comprises a chain gripper becomes two sets of endless chains running in parallel, the set of endless chains are linear The other endless chain has a path in the middle and has a path in the middle, and the chain gripper provided on the endless chain having the linear path grips the front and rear ends of the sheet printed material that does not require reversal. The front end of the sheet printed matter that needs to be reversed is picked by a chain gripper provided in an endless chain having a convex path in the middle, and the rear end is picked by a chain gripper provided in the endless chain having the linear path, and the convex The sheet printed matter that needs to be reversed at the position of the path is reversed, so that every other sheet is reversed every other line. Stacked Te is, components such as printing inks or varnishes such surface can be a transfer apparatus without sheet printed matter to migrate to the back surface.

Further, according to the invention according to claim 2 , the mechanism for reversing the front and back every other sheet is composed of two sets of endless chains provided with chain grippers and running in parallel or in parallel. A sheet having a straight path, and the other set of endless chains has a path that is twisted and reversed in the middle, and the chain gripper provided in the endless chain having the straight path does not require reversal. Pick the front edge of the printed material, pick the front edge of the printed sheet that needs to be reversed with a chain gripper provided in an endless chain that has a path that twists and turns in the middle, and turn the paper at the position of the path that twists and turns the right and left. By reversing the front and back of the required printed sheet, the front and back are reversed every other line in one or two lines. Can components such as printing inks or varnishes such surface is a conveying device for free sheet printed matter to migrate to the back surface.

According to the invention of claim 3 , the mechanism for reversing the front and back every other sheet is composed of one set of chain grippers and two sets of endless chains that run in parallel. Pick and push the trailing edge of the sheet printed material with the chain gripper provided and insert it into the case where the sheet printed material that requires reversal and the sheet printed material that does not require reversal alternate, and the sheet printed material that requires reversal is inserted The printed case is rotated halfway back and forth or back and forth, and the sheet printed matter in the case is pulled out by holding the front end of the sheet printed matter with a chain gripper provided in the rear endless chain. A sheet-fed printed material transport device that is reversed and stacked every other time, and components such as printing ink and varnish on the front surface do not transfer to the back surface. It can be.

  Accordingly, the present invention provides a sheet-fed printed material conveying apparatus in which a sheet-fed printed matter having a surface printed thereon is reversed every other sheet, and the sheet-fed printed matter is a paper container for storing food, beverages, and the like. Exhibits excellent practical effects in applications.

  The best mode for carrying out the present invention will be described below in detail with reference to the drawings.

  The present invention is a sheet-fed printed material conveying device for reversing every other sheet-fed printed material, one of which is, for example, a chain gripper (42, 52) as shown in FIG. 2 sets of endless chains (40, 50) running in parallel, and one set of endless chains (40) has a linear path, and the other set of endless chains (50) is halfway Has a convex path.

  For example, as shown in FIG. 1 (c), the chain gripper (42) provided in the endless chain (40) having the linear path picks up the front and rear ends of the sheet printed matter (10) that does not need to be reversed, and reverses it. 1b, and the sheet printed matter that needs to be reversed by the chain gripper (52) provided in the endless chain (50) having a convex path in the middle as shown in FIG. 1 (b). The front end of (20) is picked, the rear end is picked by a chain gripper (42) provided in the endless chain (40) having the linear path, and the sheet printed material (20 ) Are conveyed in a state where the front and back sides are reversed, and the sheet printed matter (20) which is turned upside down and the sheet printed matter (10) in the same state (not reversed) shown in FIG. A conveying device for sheet printed matter to be.

These actual sheet-fed printed material conveying devices include two endless chains (see FIG. 1A).
40, 50), and a sheet printed material (20) that requires reversing the front and back and a sheet printed material (10) that does not require reversing are alternately carried in, and the reversing of the front and back shown in FIG. It is the conveyance apparatus of the sheet printed matter which united the movement of the sheet printed matter (20), and the movement of the sheet printed matter (10) which does not require inversion shown in FIG.1 (c). Therefore, it is necessary to use a rotatable chain gripper (52, 42) that picks up the printed sheet (20) that requires reversing the front and back shown in FIG. 1 (b).

  Further, another form of the sheet-fed printed material conveyance device of the present invention is, for example, as shown in FIG. 2 (a), two sets of endless chains (having chain grippers (42, 62)) that run in parallel ( 40, 60), and one set of endless chains (40) has a straight path, and the other set of endless chains (50) has a path that is twisted and reversed in the middle. .

  For example, as shown in FIG. 2 (c), the front end of the sheet printed material (10) that does not need to be reversed is picked up and reversed by the chain gripper (42) provided in the endless chain (40) having the linear path. As shown in FIG. 2 (b), a sheet that requires reversal by a chain gripper (62) provided in an endless chain (60) having a path that is twisted and reversed in the middle as shown in FIG. 2 (b). The front end of the leaf print (20) is picked and conveyed in a state where the front and back are reversed at the position of the path where the left and right are twisted and reversed, and the sheet printed matter (20) reversed as shown in FIG. 2 (c) This is a sheet-fed printed material transport device that allows sheets (10) in a state (not inverted) to be stacked alternately.

  These actual sheet-fed printed material conveying devices are a sheet of printed matter (20) that requires reversing the front and back and a sheet that does not require reversing in one line consisting of two endless chains (40, 60) shown in FIG. The leaf printed matter (10) is carried in alternately, and the movement of the sheet printed matter (20) that requires reversing the front and back shown in FIG. 2 (b) and the sheet printed matter (10) that does not require the reversing shown in FIG. 2 (c). It is the conveyance apparatus of the sheet printed matter which united the movement of.

  Alternatively, two lines, that is, a line composed of an endless chain (60) having a path that is twisted and reversed as shown in FIG. 2 (b) and a line composed of an endless chain (40) having a linear path illustrated in FIG. 2 (c). It can also be set as the conveyance apparatus of the sheet printed matter comprised by these.

  Furthermore, another form of the sheet-fed printed material conveying apparatus of the present invention is, for example, as shown in FIG. 3A, a set of linear endless chains (having a chain gripper (42)). 40), and as shown in FIG. 3 (c), the chain gripper (42) provided in the endless chain (40) grips and pushes the rear end of the sheet-fed print (10) that does not require reversal. Insert the printed sheet (10) into the case (80), and in this state, pull the front end with the gripper (72) of the rear endless chain (70) and pull it out as shown in FIG. 3 (b). The sheet printed matter (20) that requires printing is picked and pushed, inserted into the case (80) containing the sheet printed matter (10), and the sheet printed matter (10) is rotated halfway back and forth with the case (80). In the state after Drawer in the chain gripper which is provided on the endless chain (70) (72) picking front end of sheet printed material, a conveying device for sheet printed matter to ensure both are stacked alternately. The reversal of the case (80) in which the printed sheet (20) requiring the front / back reversal is inserted may be rotated halfway left and right.

  These actual sheet-fed printed material conveying devices are a sheet-fed printed matter (20) that requires reversing the front and back and a sheet-fed printed matter that does not require reversal in one line consisting of a pair of endless chains (40) shown in FIG. The movement of the sheet printed matter (20) that carries in (10) alternately and needs to be reversed as shown in FIG. 3 (b) and the movement of the sheet printed matter (10) that does not need to be reversed as shown in FIG. 3 (c). It is the conveyance apparatus of the sheet printed matter which united.

  Or the line which consists of the case (80) in which the sheet | seat printed matter (20) which requires front-back inversion shown in FIG.3 (b) was inserted, and the sheet-fed printed matter (10) which does not require inversion shown in FIG.3 (c) were inserted. It is also possible to provide a sheet-fed printed material conveying apparatus composed of two lines, that is, a line formed by the case (80) or a line (not shown) having no reversing case.

  Specific examples of the present invention will be described below.

(Surface) (12 μm) PE / (270 g / m ² ) Manila cardboard / (20 μm) Al foil / (12 μm) PET / (12 μm) PE (back surface) is prepared as an evaluation sheet-fed print, and is A4 size. Cut out. The PE side of the surface is usually printed, and the opposite PE side is in contact with the contents.

[Preparation of sample 1]
As a sample for a comparative example of the present invention, a gravure ink: UPTOP (manufactured by Toyo Ink Manufacturing Co., Ltd.) was applied to the surface using a bar coater, dried in an oven, and then the surface printed surface was turned up. Twelve sheets were quickly wrapped in aluminum foil, placed on a wooden board (about 5 kg), and two sheets were taken out from the top one after another after a certain period of time.

[Preparation of sample 2]
As a sample of an example of the present invention, the gravure ink was applied to the surface in the same manner as in the sample 1, and after drying in an oven, six sets (12 sheets) of the coated surfaces were folded together and wrapped with aluminum foil, A wooden board (about 5 kg) was placed and a load was applied. Sample 2 was also taken out from the top two by one after a certain time.

  For the samples 1 and 2 in Example 1 above, the center part of the paper is cut into a 10 cm square, Al / PET / PE is peeled off from the paper, and the amount of the set-off component (this time ethyl acetate) is examined by gas chromatography. It was. The results are shown in Table 1.

上記表１の結果から、本発明の枚葉印刷物の搬送装置による枚葉印刷物は、印刷インキ等印刷に関わる成分の裏移りに対し、優れているのは明確であった。これら成分の裏移りは瞬間的に接触するだけで発生することもわかり、成分の裏移りを防ぐには、印刷後、印刷面と内容物が接する側の面が接触することのないようにすることが好ましいことが判明した。

From the results of Table 1 above, it was clear that the sheet-fed printed matter by the sheet-fed printed matter conveying apparatus of the present invention was superior to the set-off of components related to printing such as printing ink. It can also be seen that the set-off of these components occurs only by momentary contact, and to prevent the set-up of the components, after printing, make sure that the printed surface and the surface on which the contents are in contact do not touch. It turned out to be preferable.

BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic diagram which shows one Embodiment of the conveyance apparatus of the sheet printed matter of this invention, (a) shows the line, (b) shows the motion of the sheet printed matter which requires front-back inversion, (c) Shows the movement of the printed sheet that does not require reversal. FIG. 5 is a schematic diagram illustrating another embodiment of the sheet-fed printed material conveyance device according to the present invention, where (a) illustrates the line, (b) illustrates the movement of the sheet-fed printed material that requires front and back inversion, c) shows the movement of the printed sheet that does not require reversal. FIG. 5 is a schematic diagram illustrating another embodiment of the sheet-fed printed material conveyance device according to the present invention, where (a) illustrates the line, (b) illustrates the movement of the sheet-fed printed material that requires front and back inversion, c) shows the movement of the printed sheet that does not require reversal.

Explanation of symbols

10. Sheet-fed printed matter that does not require reversal 20 ... Sheet-fed printed matter that requires reversal of front and back 40: Endless chain with straight path 42: Endless chain gripper with straight path 50: Convex shape Endless chain having a path 52 ... Endless chain gripper having a convex path 60 ... Endless chain having a path that is twisted to the left and right to reverse 62 62 ... Endless chain gripper having a path that is twisted to the left and right to reverse 70 Rear endless chain 72 Rear endless chain gripper 80 Reverse case

Claims (3)

This is a sheet-fed printed material conveying apparatus that conveys sheet-by-sheet printed matter printed on the surface one by one, and reverses the sheet-fed printed matter every other sheet so that the surfaces are stacked side by side. And
The mechanism for reversing the front and back of every other piece consists of two sets of endless chains that run in parallel with chain grippers, and the one set of endless chains has a straight path, and the other set of endless chains. Has a convex path in the middle, and picks up the front and rear ends of the sheet printed material that does not require reversal by a chain gripper provided in the endless chain having the linear path, and creates an endless chain having a convex path in the middle. A sheet grip that requires reversal is picked by a chain gripper provided, a rear end is picked by a chain gripper provided in an endless chain having the linear path, and a sheet that requires reversal at the position of the convex path. A sheet-fed printed material conveying apparatus, wherein the printed material is turned upside down. This is a sheet-fed printed material conveying apparatus that conveys sheet-by-sheet printed matter printed on the surface one by one, and reverses the sheet-fed printed matter every other sheet so that the surfaces are stacked side by side. And
The mechanism for reversing the front and back every other piece is composed of two sets of endless chains that are provided with chain grippers and run in parallel or in parallel, and the one set of endless chains has a straight path, and the other set The endless chain has a path that is twisted and reversed in the middle, and the front end of the sheet printed material that does not require reversal is picked by the chain gripper provided in the endless chain having the linear path, and the left and right are twisted in the middle. The front end of the sheet printed matter that needs to be reversed is picked by a chain gripper provided in an endless chain having a reversing path, and the front and back of the sheet printed matter that needs to be reversed are reversed at the position of the reversing path by twisting the left and right. A sheet-fed printed material transport device. This is a sheet-fed printed material conveying apparatus that conveys sheet-by-sheet printed matter printed on the surface one by one, and reverses the sheet-fed printed matter every other sheet so that the surfaces are stacked side by side. And
The mechanism for reversing the front and back every other sheet is composed of one set of chain grippers that run or two sets of endless chains that run in parallel, and the rear end of the sheet-fed printed matter with the chain grippers provided in the endless chains. Is inserted into a case in which a sheet printed matter that requires reversal and a sheet printed matter that does not require reversal are alternately inserted, and the case in which the sheet printed matter that requires reversal is inserted is rotated halfway back and forth or back and forth, A sheet-fed printed material conveying apparatus, wherein the sheet-fed printed matter in both cases is pulled out by picking a front end of the sheet-fed printed matter with a chain gripper provided in a rear endless chain.

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