JP3754493B2 - Blanks transfer device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a blanks conveying apparatus mainly used for conveying blanks in a printing inspection machine for inspecting a printing state of a paper container-extruded sheet (blanks), that is, printed characters, figures, hues, scratches, stains, etc. on a sheet. It is.
[0002]
[Prior art]
In a printing inspection machine, conventionally, a flat belt conveyor, a chain, and a vacuum suction conveyance belt have been used as means for conveying blanks supplied from blank supply means to an inspection unit.
[0003]
[Problems to be solved by the invention]
In order to correctly image and inspect characters, figures, and the like printed on the Bunranks surface in the inspection unit, it is necessary that blanks be sent to the imaging unit in the correct positional relationship. In particular, it is required that the reference line on the blank that is perpendicular to the traveling direction is correctly perpendicular to the traveling direction of the blank during imaging.
[0004]
However, in the conveyance by the conventional flat belt conveyor, the position of the blanks on the conveyor becomes unstable, and it is almost impossible to maintain the reference line at right angles to the traveling direction of the blanks particularly when conveying at a high speed. It was.
[0005]
Moreover, in the conventional conveyance by the vacuum suction conveyance belt, it is difficult to correct the posture if the posture of the blank when it is supplied to the conveyance belt from the blank supply means is desired. Met. Since it is difficult to maintain the posture of the blanks correctly when supplying from the blank supply means to the vacuum suction conveyance belt, the reference line of the blanks conveyed to the inspection unit is perpendicular to the traveling direction. In many cases, it has been difficult to smoothly perform the print inspection in the inspection section.
[0006]
[Means for Solving the Problems]
The blanks conveying apparatus of the present invention is provided with a blanks supply means for supplying blanks one by one at a predetermined timing, and a pressing claw portion that pushes the blanks supplied at a predetermined timing from the back in an integrated manner. Conveying means having a pair of left and right endless conveying bodies for conveying blanks to the apparatus, a width direction position adjusting means for adjusting the left and right direction positions of the pair of left and right endless conveying bodies, and a pair of left and right endless conveying bodies In order to adjust the relative position in the direction of travel of the push-claw part, a travel position adjusting means for adjusting the travel position of the endless transporter relative to the drive wheels is provided.
[0007]
Moreover, the blanks conveying apparatus of this invention makes it a preferable structure that the feeder part of the blanks supply means is comprised so that position adjustment in the left-right direction is possible in addition to the said structure.
[0008]
In addition to the above configuration, the blank transport apparatus of the present invention includes a pair of left and right width regulation guide means, and regulates the position in the left and right direction while blanks are transported by a pair of left and right endless transport bodies. Thus, it is preferable that the blanks be delivered to the working device.
[0009]
Further, the blanks conveying apparatus of the present invention has an intermediate conveying means interposed between the conveying means and the working device in addition to the above-described configuration, and the intermediate conveying means includes a lower pinch roll or a plurality of lower pinch rollers and a pair of right and left. Of the upper pinch roller with a narrow width, the peripheral speed is larger than the peripheral speed when the end of the pushing claw of the endless transport body is rotated, and the interval between the upper pinch rollers can be adjusted. A preferred configuration is adopted.
[0010]
The endless transport body can be configured by attaching a push claw portion to the endless chain at a predetermined interval, but it is preferable to use a timing belt in which the push claw portion is integrally formed at a predetermined interval.
[0011]
The present invention is a printing inspection apparatus in which the working device performs an appearance inspection of characters, figures, etc. printed on the surface of the blanks, and is sent directly from the conveying means or sent via the intermediate conveying means. It is preferable to apply the present invention to a blanks printing inspection machine having a vacuum suction conveyance belt that receives and conveys the blanks that come.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
In FIG. 1 showing a blanks printing inspection machine, 1 is a blanks supply means for supplying blanks a one by one at a predetermined timing, and 2 is a predetermined pressing claw portion 3 for pushing the blanks a supplied at a predetermined timing from behind. A conveying means 6 having a pair of left and right timing belts 5a and 5b for conveying blanks a to the printing inspection apparatus 4 at intervals is interposed between the conveying means 2 and the printing inspection apparatus 4 and is received from the conveying means 2. Intermediate conveyance means comprising a lower pinch roll 7 and a pair of left and right upper pinch rollers 8a and 8b for passing the blank a to the printing inspection apparatus 4, and 4 is the appearance of characters, figures, etc. printed on the surface of the blank a A printing inspection apparatus 11 includes an imaging device 9 that performs inspection, and a vacuum suction conveyance belt 10 that moves the blanks a at a constant speed below the imaging device 9. The has been blank a determines that printing failure in device 4 to eliminate obliquely downward and forward, a sorting oscillating belt for conveying the been blank a determines that print well as forward.
[0013]
The blanks supply means 1 stocks the blanks a shown in FIG. 3 and FIG. 6 in a stacked state, and supplies the lowest blanks a to the transport means 2 one by one. At this time, the reference line P (FIG. 3) that should be perpendicular to the traveling direction of the blanks a is in a normal posture state that is perpendicular to the traveling direction, and the horizontal position of the blanks a is regulated. Thus, blanks a are supplied onto the pair of left and right timing belts 5a and 5b of the conveying means 2. The supply timing is set so as to be the timing at which the pushing claws 3 and 3 are approaching to the rear of the blanks a supplied on the timing belts 5a and 5b.
[0014]
As shown in FIG. 7, the blanks supply means 1 is configured such that its feeder portion 71 can be adjusted in position in the left-right direction. That is, between the left and right side walls 73a and 73b of the movable base 72 of the feeder portion 71, two support shafts 78a and 78b are horizontally mounted on the front side thereof, and two guide shafts 74c and 74d are respectively mounted on the rear side thereof. The plate 75 is fixed to the center of the two support shafts 78a and 78b, while the left side surface position adjusting plate 76a and the right side surface position adjusting plate 76b are independently guided by the two guide shafts 74c and 74d. It is configured to be movable in the left-right direction and to be positioned at a predetermined position. The movable base 72 is guided and supported on a pair of front and rear guide rails 80a and 80b provided on the fixed base 79 of the blanks supply means 1, and is movable in the left-right direction and can be positioned at a predetermined position. Has been.
[0015]
The blanks a stocked in a stacked state are placed on the feeder unit 71 with the front and rear side position setting plates 75 and the left and right side surface position setting plates 76a and 76b being adjusted to the right and left and front and rear positions at the position most suitable for the shape. Is done. The movable base 72 of the feeder unit 71 is positioned at the most suitable position in the left-right direction. The lowermost blanks a are supplied to the transport means 2 one by one by the action of the feeder roller 77 and the like.
[0016]
As described above, the feeder unit 71 is configured to be position-adjustable in the left-right direction, thereby providing the following advantages. That is, as shown in FIGS. 3 and 6 (a) to 6 (c), blanks a have various shapes and dimensions, and there are asymmetrical and longitudinally asymmetrical blanks. Although the optimum supply position and the optimum regulation position differ depending on the type of a, the above configuration can be adapted to various blanks a. Further, it is possible to freely select the conveyance direction of the blanks a, that is, which side is the front side.
[0017]
As shown in FIG. 2, the conveying means 2 includes a pair of left and right vertical support plates 12a and 12b, and a drive pulley 13, driven pulleys 14 and 15, and a tension pulley 16 supported by the support plates 12a and 12b. The timing belts 5a and 5b are suspended. The left and right drive pulleys 13 and 13 are attached to a drive shaft 17 penetrating both support plates 12a and 12b via inner rings 18 and 18, respectively. The inner ring 18 is integrally attached to the drive shaft 17, and the drive pulley 13 is fixed to the inner ring 18 with a positioning bolt 19 so that the rotational position can be adjusted. The drive shaft 17 is rotated by the rotation from the motor transmitted through the belt 20 and the pulley 21. The pair of left and right support plates 12a and 12b are guided and supported by a pair of front and rear support rods 23 and 24 so as to freely move left and right. A pair of width-direction position adjusting screw shafts 25a and 25b are provided in parallel to the support rods 23 and 24, and penetrate both the support plates 12a and 12b. One screw shaft 25a is screwed into a nut 27a fixed to one support plate 12a, and a handle 28a attached to one end of the screw shaft 25a is rotated to move the support plate 12a in the left-right direction. The timing belt 5a supported by the plate 12a can be positioned in the left-right direction. Similarly, the other screw shaft 25b is screwed into a nut 27b fixed to the other support plate 12b, and a handle 28b attached to one end of the screw shaft 25b is rotated to move the support plate 12b in the left-right direction. The timing belt 5b supported by the support plate 12b is configured to be positioned in the left-right direction.
[0018]
Both the timing belts 5a and 5b are integrally provided with a pushing claw portion 3 which presses the blanks a in contact with predetermined positions b ₁ and b ₂ on the back as shown in FIG. The blanks a supplied from the blanks supply means 1 rides on both timing belts 5a and 5b, and is conveyed by being pushed by the left and right push claws 3 and 3 that are in contact with the predetermined positions b ₁ and b ₂ on the back surface thereof. The At that time, the blank a needs to be smoothly transported while the reference line P is maintained at right angles to the transport direction. For this purpose, as a first condition, the left and right timing belts 5a and 5b are placed in the left and right direction (width direction) with a good balance of the blanks a, and the pushing claws 3 and 3 are pushed by the blanks a. It is necessary to be in a position that abuts a position suitable for the above. Further, as a second condition, it is necessary that the front-rear direction related positions of the left and right push claws 3, 3 are determined so that the reference line P is maintained at a right angle to the transport direction.
[0019]
By the way, as shown in FIGS. 3 and 6 (a) to (c), blanks a has various shapes and dimensions, so that the first and second conditions are satisfied. The left and right position of the left and right timing belts 5a and 5b and the position of the left and right timing belts 5a and 5b between the push claws 3 and 3 must be adjusted to be suitable for each blank a. .
[0020]
The blanks conveying apparatus of the present invention has width direction position adjusting means composed of screw shafts 25a and 25b for adjusting the position in the width direction, handles 28a and 28b, nuts 27a and 27b, support plates 12a and 12b, etc. By adjusting the positions of the timing belts 5a and 5b in the left-right direction, the first condition is always satisfied for the various blanks a.
[0021]
The blanks conveying device of the present invention is configured such that an inner ring 18 is interposed between the drive shaft 17 and the drive pulley 13 so that the rotational position of the drive pulley 13 relative to the drive shaft 17 can be freely adjusted. The relative positions of the belts 5a and 5b in the traveling direction can be adjusted. That is, since the blanks conveying apparatus of the present invention includes the traveling position adjusting means that can adjust the traveling positions of the push claws 3 and 3 in the left and right timing belts 5a and 5b, The second condition is satisfied. In the present embodiment, both the left and right drive pulleys 13 and 13 are configured to be capable of adjusting the rotational position with respect to the drive shaft 17, but only one of the drive pulleys 13 is configured to be capable of adjusting the rotational position. It may be.
[0022]
As shown in detail in FIGS. 4 and 5, the intermediate conveyance means 6 provided for passing the blanks a received from the conveyance means 2 to the printing inspection apparatus 4 is composed of a lower pinch roll 7 and a pair of left and right upper pinches. It comprises rollers 8a and 8b. The lower pinch roll 7 is rotated by the rotation of the drive shaft 30 and is long in the left-right direction. On the other hand, the pair of left and right upper pinch rollers 8a and 8b are narrow-width supported on the driven rotation shaft 31 so that the position in the left-right direction can be adjusted. Each upper pinch roller 8a, 8b can move in the left-right direction on the driven rotating shaft 31, and is fixed by a set screw 32, 32 at a predetermined position.
[0023]
The peripheral speed of the lower pinch roll 7 is set to be larger than the peripheral speed at the time of rotation of the tip of the push claw portion 3 of the timing belts 5a and 5b, and the blank a is pushed by the push claw portion 3 as shown in FIG. On the other hand, when supplied between the lower pinch roll 7 and the upper pinch rollers 8a and 8b, the back surface of the blanks a is quickly moved away from the tip of the push claw portion 3 which tries to rotate downward while increasing the speed. It is designed not to be adversely affected by the tip of the claw portion 3.
[0024]
Further, as shown in FIG. 3, the left and right upper pinch rollers 8a and 8b are set such that the positions in the left and right directions are in contact with the optimum positions c ₁ and c ₂ of the front end portion of the blank a. As already described, the blanks a have various shapes and dimensions, and the optimum contact position of the left and right upper pinch rollers 8a and 8b varies depending on the various blanks a. The contact positions of the left and right upper pinch rollers 8a and 8b are limited to a narrow range, and the positions in the left and right directions can be adjusted. By setting the above c ₁ and c ₂ at the positions shown in FIG. 3, the blanks a can be sent to the print inspection apparatus 4 in a well-balanced manner, and the reference line P is perpendicular to the transport direction during the transport. So that it can be maintained.
[0025]
The printing inspection apparatus 4 to which the blanks a are supplied via the intermediate conveying means 6 receives this on a number of vacuum suction conveying belts 10 and passes them below the image pickup device 9 at a constant speed while adsorbing them. The image pickup device 9 performs an appearance inspection of characters, graphics, and the like printed on the surface of the blank a, and determines whether the printing state is good or bad.
[0026]
When the blanks a determined to be defective in printing by the image pickup device 9 are sent onto the sorting swing belt 11, the sorting swing belt 11 swings as indicated by a virtual line in FIG. Excludes a forward and diagonally. The blanks a determined to be in good printing go straight forward on the sorting swing belt 11.
[0027]
As described above, the blanks transport device of the present invention can correctly transport various blanks a to a work device such as the print inspection device 4 while maintaining the reference line P at right angles to the transport direction. . Further, when the print inspection apparatus 4 is required to accurately set the position of the blank a in the left-right direction (width direction), the transport means 2 is provided with a pair of left and right width regulation guide means 50a, 50b. Just do it. Although only a part is shown in FIG. 3, these width regulation guide means 50a and 50b are configured to be positioned at arbitrary positions in the left-right direction so that each can be adapted to various blanks a. . Further, the distance between the width adjusting guide means 50a and 50b from the upstream side to the downstream side is set so that the position in the left and right direction is gradually adjusted while the blanks a are conveyed by the pair of left and right timing belts 5a and 5b. It is comprised so that it may become narrow gradually.
[0028]
The present invention can be configured in various ways other than those shown in the above embodiments. For example, the intermediate conveyance means 6 is not essential, and the blanks a can be directly conveyed from the conveyance means 2 to the working device.
[0029]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to this invention, the blanks conveying apparatus which can convey each blanks with a correct attitude | position at high speed from a blanks supply means to a working device corresponding to various blanks from which a shape and a dimension differ can be provided.
[0030]
In particular, in the present invention, the feeder portion of the blanks supply means is configured to be position-adjustable in the left-right direction, each of the pair of left and right endless transport bodies of the transport means is configured to be position-adjustable in the left-right direction, and By providing a pair of width regulation guide means, various blanks can be supplied to the position where the vacuum suction conveyance belt of the printing inspection apparatus is vacuum-sucked most stably and reliably. Moreover, it is easy to adjust the position in the left-right direction, and the amount of movement for adjusting the position in the left-right direction of the feeder unit and the pair of left and right endless transport members is small, so the size in the left-right direction (width direction) of the device is compact Can be.
[Brief description of the drawings]
FIG. 1 is an overall schematic diagram showing an embodiment of the present invention.
FIG. 2 is a perspective view of the main part.
FIG. 3 is a plan view of the main part.
FIG. 4 is a perspective view showing intermediate conveyance means.
FIG. 5 is a side view thereof.
FIG. 6 is a plan view showing various blanks in (a), (b), and (c).
FIG. 7 is a perspective view showing blanks supply means of one embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Blanks supply means 2 Conveyance means 3 Push claw part 4 Working apparatus (printing inspection apparatus)
5a, 5b Endless carrier (timing belt)
6 Intermediate conveying means 7 Lower pinch rolls 8a, 8b Upper pinch roller 10 Vacuum suction conveying belts 17, 18, 19 Travel position adjusting means 12a, 12b, 25a, 25b, 27a, 27b, 28a, 28b Width direction position adjusting means 50a 50b Width regulation guide means 71 Feeder part a Blanks

Claims (6)

Blanks supply means for supplying blanks one by one at a predetermined timing;
A transport means having a pair of left and right endless transport bodies for integrally transporting the blanks to the working device by integrally providing a push claw portion that pushes the blanks supplied at a predetermined timing from behind;
A width direction position adjusting means for adjusting the position in the left and right direction of each of the pair of left and right endless transport members;
A travel position adjusting means for adjusting a travel position of the endless transport body relative to the drive wheel in order to adjust a relative position in the travel direction of the push claw portion in the pair of left and right endless transport bodies;
A blanks transporting device comprising:   The blanks conveying device according to claim 1, wherein the blanks supply means is configured such that the position of the feeder portion can be adjusted in the left-right direction.   The conveying means includes a pair of left and right width regulation guide means, and is configured to regulate the position in the left-right direction and pass the blanks to the working device while the blanks are conveyed by the pair of left and right endless conveyance bodies. Item 3. A blanks conveying apparatus according to item 1 or 2.   An intermediate conveying means is interposed between the conveying means and the working device, and this intermediate conveying means is composed of a lower pinch roll or a plurality of lower pinch rollers and a pair of left and right upper pinch rollers, 4. The blanks transport device according to claim 1, wherein the speed is higher than a peripheral speed at the time of rotation of a tip end of the endless transport body, and an interval between the upper pinch rollers can be adjusted.   The blanks conveying apparatus of Claim 1, 2, 3, or 4 by which an endless conveyance body is comprised with a timing belt and the pushing nail | claw part is integrally formed in the timing belt.   A printing inspection device for visual inspection of characters, graphics, etc. printed on the surface of blanks by the working device, receiving blanks sent directly from the transport means or via the intermediate transport means 6. A blanks conveying apparatus according to claim 1, further comprising a vacuum suction conveying belt for conveying the same.

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