JP4967571B2 - Method and apparatus for providing display on the surface of an empty bag - Google Patents

Description

  The present invention relates to a display imparting method and apparatus on the surface of an empty bag, and more specifically, it is possible to print, engrave, paste, etc. characters and symbols on the surface of an empty bag with a simple and compact configuration. The present invention relates to a display imparting method and apparatus on the surface of an empty bag.

  From various processed foods to fluid industrial materials such as sealant materials, products in packaged form accommodated in laminated bags and the like are distributed in many fields. These bags, for example, are printed, stamped or marked with letters, symbols, etc. in order to give a predetermined indication such as date of manufacture and lot number at the stage of empty bags before putting the contents inside. A label or the like indicating the display is attached.

  Conventionally, an apparatus for providing a predetermined display on the surface of such an empty bag has a supply means for supplying an empty bag on the upstream side of the printing machine, and a transfer means for transferring the empty bag on which printing has been completed to the downstream side. Was configured to be placed horizontally. For this reason, there is a problem that the entire apparatus becomes long and has a complicated configuration.

There has also been proposed an apparatus in which the length of the entire apparatus is shortened by adopting a configuration in which an empty bag in which a plurality of empty bag supply means are stacked is moved up and down with respect to the printing machine (see Patent Document 1). However, in this proposed apparatus, in addition to the supply means having the mechanism for raising and lowering the empty bag, an empty bag for moving the suction cup up and down and obliquely in order to adsorb the empty bag after printing and transfer it to the subsequent process. Since the exclusion means is arranged, the apparatus has a complicated configuration.
Japanese Patent Laid-Open No. 10-278225

  An object of the present invention is to provide a method and an apparatus for providing a display on the surface of an empty bag that can be printed, engraved, pasted or the like on the surface of an empty bag with a simple and compact configuration. It is in.

  In order to achieve the above object, the present invention provides a method for providing a display on the surface of an empty bag by supplying the empty bags one by one to the display providing unit to give a predetermined display on the surface, In the method of providing a display on the surface of the empty bag to be transferred to the process, an inclination placed by sucking and lifting one empty bag on the uppermost surface among a plurality of stacked empty bags and disposed below the display providing unit Place on the plate, slide down by its own weight, stop the stopper protruding from the inclined plate against the front end of the empty bag, and supply it to a predetermined position below the display providing unit Then, after giving a predetermined display to the surface of the stopped empty bag by the display providing unit, the contact between the stopper and the front end of the empty bag is released, and the empty bag is given the predetermined display. The process of sliding the inclined plate downward by its own weight and transferring it to the subsequent process It is an feature.

  Here, based on the detection signal of the sensor that has detected that the empty bag is stopped at the predetermined position, the display imparting operation is performed by the display imparting unit, and the stopper is released based on the end signal of the display imparting operation. An operation is performed, and after the release operation, a new empty bag is placed on the inclined plate based on a detection signal of a sensor that detects that there is no empty bag with a predetermined display at the predetermined position. It can also be controlled to do. Moreover, after giving the said predetermined display to the surface of an empty bag, air can also be sprayed on the part which provided the said predetermined display of this empty bag. For example, the display imparting unit is a printer using an ink ribbon, and the ink ribbon is wound in the width direction of the inclined plate.

  In addition, the display imparting device to the empty bag surface of the present invention includes a display imparting unit that imparts a predetermined display to the surface of the empty bag, and a supply unit that supplies the empty bags one by one to the display imparting unit. In the display providing device on the surface of the empty bag configured to transfer the empty bag given the predetermined display by the display giving unit to the subsequent process, the empty bag can slide down under the display giving unit by its own weight And an empty bag stock portion for providing the predetermined display is provided around the inclined plate, and the supply means is disposed on the inclined plate at a position above the stock portion and the display providing portion. A suction pad that can be moved up and down, and provided with a stopper that can project and move on the inclined plate at a position lower than the display applying portion, and when the stopper is protruded, the inclined plate Touch the front edge of the empty bag that slides down It is characterized in that the spatial bag is stopped and configured to supply a predetermined position below the display imparting unit by Rukoto.

  Here, a sensor for detecting the presence or absence of an empty bag at the predetermined position and a control device to which a detection signal of the sensor is input are provided, and the control device performs operations of the supply means, the display providing unit, and the stopper. It can also be configured to control. In addition, an air nozzle that blows air on the portion provided with the display of the empty bag provided with the predetermined display may be provided. For example, the display imparting unit is a printing machine using an ink ribbon, and the winding direction of the ink ribbon is configured to be the width direction of the inclined plate. The tilt angle of the tilt plate can be adjusted.

  According to the present invention, an inclined plate in which an empty bag can slide down due to its own weight is disposed below the display providing unit, and an empty bag stock unit for providing the predetermined display is provided around the inclined plate. And a suction pad that can be moved up and down between the upper and lower sides of the display providing part and an empty bag that protrudes and slides downward on the inclined board below the display providing part. A stopper that can come into contact with the front end of the bag is provided, and a simple and compact configuration can be achieved by cooperating the movement of the stopper with the downward movement of the empty bag due to its own weight using an inclined plate. It supplies to the predetermined position below a display provision part, a predetermined display is provided on the surface, and it becomes possible to transfer the empty bag which provided the display smoothly to a post process.

  Hereinafter, the display provision method and apparatus to the empty bag surface of this invention are demonstrated based on embodiment shown in the figure.

  As illustrated in FIGS. 1 and 2, the display imparting device 1 (hereinafter referred to as the display imparting device 1) on the empty bag surface of the present invention has a moving roller and can be moved and fixed arbitrarily. A support frame 3 is erected on the base 2, and an inclined plate 4 is provided on the support frame 3.

  A printing machine 7 supported by a cantilever frame 3a fixed to the support frame 3 is installed above a substantially central portion of the inclined plate 4 in the longitudinal direction. A stock portion 5a for stocking an empty bag B that provides a predetermined display is provided, and a receiving portion 5b that receives an empty bag B1 provided with a predetermined display is provided at an end portion on the lower side of the inclination.

  The inclined plate 4 arranged below the printing machine 7 is coated with a sliding material 4a having a small friction coefficient such as a fluororesin so that the placed empty bag B can be smoothly slid downward. It is preferable. The inclined plate 4 itself may be formed by the sliding material 4a. The inclination angle formed between the inclined plate 4 and the horizontal plane is set so that the empty bag B placed on the inclined plate 4 slides under its own weight, and the optimum inclination angle depends on the material of the sliding material 4a and the empty bag B, etc. Although it is different, for example, it is about 5 ° to 45 °.

  On the inclined plate 4, two guides 4b and 4b for projecting the width direction of the empty bag B sliding down are projected. The distance between the guides 4b and 4b may be variable according to the width of the empty bag B.

  The cantilever frame 3a is provided with a supply means 10 for supplying the empty bag B from the stock portion 5a onto the inclined plate 4. The supply means 10 has a suction pad 11 that can be moved up and down by a lifting air cylinder 12, and the suction pad 11 is moved by a moving air cylinder 13 on the stock plate 5 a and on the inclined plate 4 above the printing machine 7. It is comprised so that it can reciprocate between. The suction pad 11 is configured to move up and down at a position moved above the inclined plate 4 above the printing machine 7 and to move away from and close to the placement portion 4c. The ascending / descending air cylinder 12 and the moving air cylinder 13 are moved forward and backward by a drive unit 10 a configured by a switching valve or the like provided in a supply line connected to an air compressor 18, and the drive unit 10 a is connected to the control device 17. It is connected.

  The printing machine 7 installed almost above the longitudinal center of the inclined plate 4 includes a print head 8 that moves up and down by a printing air cylinder 8a, and the winding direction of the ink ribbon 9 is in the width direction of the inclined plate 4. It is comprised so that it may become. When the print head 8 moved downward presses the ink ribbon 9 against the empty bag B, a predetermined display fixed to the print head 8 is applied to the surface of the empty bag B by thermal transfer. The printing air cylinder 8 a is moved forward and backward by a driving unit 7 a configured by a switching valve or the like provided in a supply line connected to the air compressor 18, and the driving unit 7 a is connected to the control device 17.

  An air nozzle 15 is installed in the vicinity of the print head 8. The control device 17 is connected to a sensor 16 having a detection area on the inclined plate 4 below the printing press 7.

  A stopper 14 is provided between the inclined lower end of the inclined plate 4 and the receiving portion 5b. The stopper 14 is configured to move up and down by a stopper air cylinder 14b and project onto the surface of the inclined plate 4 when moved upward, and to be immersed below the surface of the inclined plate 4 when moved downward. The stopper air cylinder 14 b is moved forward and backward by a drive unit 14 a configured by a switching valve or the like provided in a supply line connected to the air compressor 18, and the drive unit 14 a is connected to the control device 17.

Hereinafter, the display provision method to the empty bag of this invention using this display provision apparatus 1 is demonstrated.
First, as illustrated in FIG. 3, after setting a plurality of empty bags B in the stock portion 5a, the rod of the moving air cylinder 13 and the rod of the elevating air cylinder 12 are advanced to suck the suction pad. 11 is moved over the stacked empty bag B, the empty bag B on the uppermost surface is sucked by the suction pad 11 and lifted by retreating the rod of the lifting air cylinder 12. In the case of the empty bag B made of aluminum or the like as a surface material and not in close contact with each other, the suction pad 11 can be used to lift the sheets one by one reliably.

  Thereafter, the rod of the moving air cylinder 13 is moved backward to move the empty bag B held on the suction pad 11 onto the inclined plate 4. At the moved position, the suction by the suction pad 11 is stopped, and the empty bag B is placed on the placement portion 4 c on the inclined plate 4 at a position higher than the printing machine 7.

  When the empty bag B is placed on the inclined plate 4, the sensor 16 detects whether or not the empty bag B is present at a predetermined position below the printing machine 7, and detects that there is no empty bag B. A signal is input to the control device 17. Based on this detection signal, the control device 17 controls the drive unit 10a of the supply means 10 to perform the operation of placing the empty bag B on the inclined plate 4.

  The empty bag B placed on the placing portion 4c on the inclined plate 4 slides down on the inclined plate 4 due to its own weight, but at this time, the stopper 14 is moved upward so as to protrude onto the inclined plate 4. The stopper 14 is brought into contact with the front end of the empty bag B that slides down and stopped. Thus, the empty bag B can be supplied to the predetermined position below the printing machine 7 on the inclined plate 4. Further, the operation control based on the detection signal of the sensor 16 described above makes it possible to reliably supply a plurality of empty bags B one by one to a predetermined position without overlapping.

  Next, as illustrated in FIG. 4, the sensor 16 detects the presence or absence of an empty bag B at a predetermined position below the printing machine 7, and a detection signal that detects the presence of the empty bag B is input to the control device 17. . Based on this detection signal, the control device 17 controls the drive unit 7a of the printing machine 7 to advance the rod of the printing air cylinder 8a to move the printing head 8 downward, and to move the ink ribbon 9 on the inclined plate 4. Press against the surface of the empty bag B stopped at a predetermined position. As a result, a predetermined display of characters, symbols, numbers, etc. representing the production lot or the like is given to the surface of the empty bag B by thermal transfer.

  After the predetermined display is given, the rod of the printing air cylinder 8a is moved backward by the control of the control device 17, and the printing head 8 is moved backward to the standby position. An end signal of the display providing operation by the printer 7 is input to the control device 17. The ink ribbon 9 is wound up by a predetermined length in preparation for the display giving operation for the next empty bag B.

  In this way, when the printing machine 7 using the ink ribbon 9 is adopted, even if the empty bag B that gives a predetermined display is a small lot, it is inexpensive and the ink is not easily deteriorated, so that the predetermined display is stably provided. can do. Further, the winding direction of the ink ribbon 9 is not limited to the direction exemplified in this embodiment, but by winding the ink ribbon 9 in the width direction of the inclined plate 4, the upper space of the inclined plate 4 can be effectively used. Thus, the display providing device 1 can be easily made compact.

  Here, in order to reliably separate the empty bag B1 having the predetermined display thermally transferred onto the surface and the print head 8, the air jetted from the air nozzle 15 may be blown onto the portion of the empty bag B1 with the predetermined display. This air blowing operation is preferably controlled by the control device 17 before or when the contact between a stopper 14 and a front end of the empty bag B1 described later is released.

  Next, as illustrated in FIG. 5, the control device 17 controls the drive unit 14 a of the stopper 14 based on the end signal of the display giving operation by the printing machine 7, and the rod of the stopper air cylinder 14 b is moved backward to stop the stopper. 14 is moved downward below the surface of the inclined plate 4 to release the contact between the stopper 14 and the front end of the empty bag B. By the releasing operation of the stopper 14, the empty bag B1 with a predetermined display slides down the inclined plate 4 by its own weight and is transferred to the receiving portion 5b. In this embodiment, the empty bag B1 is received by the receiving portion 5b, but a belt conveyor or the like is arranged instead of the receiving portion 5b, and the empty bag B1 is directly transferred to the subsequent process by the belt conveyor. Also good.

  After the release operation of the stopper 14, the sensor 16 detects whether or not there is an empty bag B at a predetermined position below the printing machine 7, and a detection signal that detects the absence of the empty bag B is input to the control device 17. Is done. Based on this detection signal, the control device 17 controls the drive unit 10a of the supply means 10 to perform an operation of placing a new empty bag B on the inclined plate 4 as illustrated in FIG. Further, based on this detection signal, the control device 17 controls the drive portion 14a of the stopper 14 to move the stopper 14 upward so as to protrude onto the inclined plate 4.

  As described above, by repeatedly performing the processes illustrated in FIGS. 3 to 5, a predetermined display is efficiently given to the surface of each of the empty bags B stacked on the stock portion 5a. can do.

  In the present invention, by using the inclined plate 4 to move the empty bag B downward by its own weight, the downward movement and the operation of the stopper 14 protruding on the inclined plate 4 are cooperated to install a complicated transfer device. Without emptying, the empty bags B can be supplied one by one to a predetermined position below the printing machine 7, and the empty bag B1 having a predetermined display on the surface is smoothly transferred to the receiving portion 5b as a subsequent process. be able to. Thereby, it becomes a simple structure compared with the conventional display provision apparatus, and it is possible to make it a compact structure short in a longitudinal direction.

  In the above embodiment, the printer 7 using the ink ribbon 9 is exemplified as the display imparting unit. However, other types of printers may be used, and the present invention is not limited to the printer. Or a labeling machine for attaching a label printed with a predetermined display to the empty bag B.

  Moreover, in the said embodiment, although the display provision apparatus 1 which installed one sensor 16 is illustrated, the some sensor 16 can also be installed. For example, a sensor may be provided at a position where the empty bag B is placed on the inclined plate 4 to detect that the empty bag B is reliably placed on the inclined plate 4. Further, sensors are provided in the stock unit 5a and the receiving unit 5b to detect the presence or absence of empty bags B and B1 at the respective locations, and input the detection signal to the control device 17 to stop the operation of the display providing device 1. It is also possible to configure such that the control is performed.

  Further, the printing air cylinder 8a, the lifting air cylinder 12, the moving air cylinder 13 and the stopper air cylinder 14b exemplified in the embodiment can be replaced with other movable mechanisms capable of performing the same operation.

  FIG. 6 illustrates another embodiment of the display imparting device 1 and describes differences from the display imparting device 1 illustrated in FIG. 1. The display imparting apparatus 1 pivotally supports one end of the inclined plate 4 on the support frame 3 by a support shaft 6a, and inserts a fixing bolt fixed to the support frame 3 at the other end of the inclined plate 4. An angle adjusting unit 6 having an arc-shaped long hole 6b to be provided is provided.

  According to this configuration, the inclination angle of the inclined plate 4 can be adjusted according to the material (friction coefficient) of the empty bag B, and the inclined angle of the inclined plate 4 can be easily adjusted for sliding down due to the dead weight of the empty bag B. Can be set to The angle adjusting unit 6 is not limited to the structure shown in FIG. 6 as long as the inclined plate 4 can be fixed at a desired inclination angle.

  The display imparting device 1 also has an auxiliary air nozzle 15 a that blows air from the back surface to the surface through a large number of through holes that penetrate the inclined plate 4. Air is blown between the empty bag B and the inclined plate 4 by the auxiliary air nozzle 15a to assist the sliding of the empty bag B due to its own weight, so that the empty bag B can be smoothly slid down regardless of the material of the empty bag B. be able to. The auxiliary air nozzle 15a only needs to be able to blow air between the empty bag B and the inclined plate 4, and is not limited to the structure shown in FIG.

  The present invention is used when a predetermined indication is given to the surface of a laminated bag having aluminum as a surface material for containing various industrial foods such as various processed foods and sealant materials, and other various empty bags B. be able to.

It is a side view which illustrates the display provision apparatus to the empty bag surface of this invention. FIG. 2 is a partially enlarged front view of FIG. 1. It is explanatory drawing which illustrates the first process of the display provision method to the empty bag surface of this invention. FIG. 4 is an explanatory diagram illustrating the next process of FIG. 3. FIG. 5 is an explanatory diagram illustrating the next process of FIG. 4. It is a side view which illustrates another embodiment of the display provision apparatus to the empty bag surface.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 The display provision apparatus on the surface of an empty bag 2 Base 3 Support frame 3a Cantilever frame
4 Inclined plate 4a Sliding material 4b Guide 4c Placement part 5a Stock part 5b Receiving part (post process)
DESCRIPTION OF SYMBOLS 6 Angle adjustment part 6a Support shaft 6b Elongate hole 7 Printing machine 7a Drive part 8 Print head 8a Air cylinder for printing 9 Ink ribbon 10 Supply means 10a Drive part 11 Suction pad
DESCRIPTION OF SYMBOLS 12 Air cylinder for raising / lowering 13 Air cylinder for movement 14 Stopper 14a Drive part 14b Air cylinder for stopper 15 Air nozzle 15a Auxiliary air nozzle 16 Sensor 17 Control apparatus 18 Air compressor B Empty bag B1 Empty bag which gave the predetermined display

Claims (9)

  In the display providing method on the surface of the empty bag, the empty bags are supplied one by one to the display giving unit to give a predetermined display on the surface, and the empty bag given the indication is transferred to the subsequent process. One of the empty bags at the top is sucked and lifted, placed on the inclined plate arranged below the display imparting portion, and slid downward by its own weight. The stopper that protrudes to the front end of the empty bag is stopped and brought into contact with the front end of the empty bag to be supplied to a predetermined position below the display providing unit, and the display providing unit displays a predetermined display on the surface of the stopped empty bag. After the contact, the contact between the stopper and the front end of the empty bag is released, and the step of sliding the inclined plate downward by its own weight and transferring the empty bag with the predetermined indication to the subsequent process is repeated. A method of giving a display to the surface of the empty bag.   Based on the detection signal of the sensor that has detected that the empty bag is stopped at the predetermined position, the display imparting operation is performed by the display imparting unit, and the stopper releasing operation is performed based on the end signal of the display imparting operation. Then, after the releasing operation, an operation of placing a new empty bag on the inclined plate is performed based on a detection signal of a sensor that detects that there is no empty bag with a predetermined display at the predetermined position. The display imparting method to the empty bag surface according to claim 1 to be controlled.   3. The display providing method for an empty bag according to claim 1, wherein after the predetermined display is applied to the surface of the empty bag, air is blown to a portion of the empty bag to which the predetermined display is applied.   The display imparting method to the empty bag surface according to any one of claims 1 to 3, wherein the display imparting unit is a printing machine using an ink ribbon, and the ink ribbon is wound in the width direction of the inclined plate.   A display imparting unit for imparting a predetermined display to the surface of the empty bag, and a supply means for supplying the display imparting unit one by one to the display imparting unit. In the display providing device on the surface of the empty bag configured to be transferred to a subsequent process, an inclined plate on which the empty bag can slide down by its own weight is disposed below the display providing unit, and the periphery of the inclined plate is arranged around the inclined plate. An empty bag stock portion for providing a predetermined display is provided, and the supply means is constituted by a suction pad that can be moved up and down between the stock portion and the inclined plate at a position above the display providing portion. A stopper is provided on the inclined plate at a position lower than the display providing portion, and the stopper is movable by contacting the front end of an empty bag that slides downward when the stopper is protruded. Let the empty bag with the display Configured display application device to the surface of the empty bag so as to supply a predetermined position of the lower parts.   A sensor for detecting the presence or absence of an empty bag at the predetermined position and a control device to which a detection signal of the sensor is input are provided, and the control device controls operations of the supply means, the display providing unit, and the stopper. The display provision apparatus to the surface of the empty bag of Claim 5 comprised in Claim 5.   The display providing device for the surface of an empty bag according to claim 5 or 6, further comprising an air nozzle that blows air to a portion to which an indication of an empty bag to which the predetermined indication is given is provided.   To the surface of the empty bag according to any one of claims 5 to 7, wherein the display imparting unit is a printer using an ink ribbon, and the winding direction of the ink ribbon is the width direction of the inclined plate. Display giving device.   The display providing device on the surface of the empty bag according to any one of claims 5 to 8, wherein the inclination angle of the inclined plate is adjustable.

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