JP3781032B2 - Cap-shaped workpiece posture adjusting device and alignment conveying device - Google Patents

Description

  The present invention relates to a posture adjusting device for a cap-shaped workpiece such as a cap of a bottle, and an alignment conveying device mainly composed of the posture adjusting device.

  For example, in a factory line for capping a bottle mouth, a large number of caps must be aligned in a fixed posture by a posture adjusting device before the cap is attached to the bottle mouth by a capping machine.

  Conventionally, as the posture adjusting device, for example, by blowing air from below, the cap whose opening is directed downward is blown away and only the cap whose end wall (top surface) faces downward is left. What is composed is known.

  However, in the conventional posture adjusting device, means for collecting the caps that have been blown away and collecting them again is necessary, and the configuration of the device becomes complicated. There were problems such as possible scratches.

  The present invention has been made in view of the above circumstances, and is capable of aligning all cap-shaped workpieces in the same posture and capable of stably feeding out without causing deformation or scratches. It is an object of the present invention to provide an attitude adjustment device and an apparatus for aligning and conveying a cap-shaped workpiece mainly composed of the attitude adjustment device.

  The invention of claim 1 is a cap-like workpiece posture adjusting device for carrying out a cap-like workpiece having a cylindrical wall and an end wall while aligning the posture with the end wall facing downward, at least at the bottom. A work receptacle that has a plurality of ventilation holes and can receive the workpiece supplied from the outside, a velocity component that is upward from the bottom of the workpiece receptacle, and a velocity component that is directed to one side in the horizontal direction. By blowing out the air having, the workpiece supplied to the workpiece receiver is floated and the posture is aligned so that the end wall faces downward, and the workpiece is removed from the one side of the workpiece receiver. And an air blowing device to be carried out.

  According to a second aspect of the present invention, there is provided the cap-shaped workpiece posture adjusting apparatus according to the first aspect, wherein a part of the peripheral wall portion on the one side is cut into a concave shape from above to the work receiver. It is characterized in that a missing delivery section is provided.

  A third aspect of the present invention is the cap-shaped workpiece posture adjusting apparatus according to the first or second aspect, and a workpiece transfer device continuously installed on one side of the workpiece receiver in the posture adjusting device. A cap-shaped workpiece aligning and transporting device comprising a combination, wherein the work transporting device has air jet holes inclined in the transport direction arranged on a work transport plate having a top surface as a transport surface. By jetting air toward the diagonally upward direction, the workpiece supplied from the workpiece receiver onto the workpiece conveyance plate is conveyed while being given a thrust while being lifted.

  According to the invention of claim 1, by sending air having a velocity component directed upward from the bottom of the work receiver, the work supplied into the work receiver is levitated and the end wall is directed downward. You can align your posture. In addition, since the air has a velocity component toward one side in the horizontal direction, it is possible to send a workpiece that has floated and the posture is aligned to the one side and can be carried out of the workpiece receiver.

  Therefore, all the workpieces can be sent out stably without causing deformation or scratches. In addition, it is not necessary to provide extra equipment such as collecting the blown work as in the prior art, and the apparatus configuration can be simplified.

  According to the second aspect of the present invention, the one side of the work receiver is provided with the delivery portion in which a part of the peripheral wall portion of the work receiver is cut out in a concave shape from the upper side to the lower side. It is possible to smoothly carry out a workpiece that has been sent to the machine and whose posture has been adjusted to the outside of the workpiece receiver.

  According to the invention of claim 3, the air flowing obliquely in the transport direction in the work transport device can generate a flow of air that flows on the work transport plate from the upstream side of the work transport plate. For this reason, the workpiece carried out from the workpiece receptacle to one side can be smoothly transferred onto the workpiece conveyance plate. Therefore, it is possible to effectively prevent the work from staying at the boundary between the posture adjusting device and the work transfer device.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a side cross-sectional view showing a schematic configuration of a workpiece aligning and conveying apparatus according to an embodiment. The target workpiece W here is a cap of a bottle having an end wall 1 and a cylindrical wall 2 and is made of plastic or aluminum.

  The aligning / conveying device 10 includes a posture adjusting device 20 that sends out the workpiece W in a posture in which the end wall 1 faces downward, and a work conveying device 30 that is continuously arranged in the rear stage (one side) of the posture adjusting device 20. It is composed of a combination of The posture adjusting device 20 is disposed at the start end of the work transfer line.

  The posture adjusting device 20 is a container-like member (for example, a net having a predetermined rigidity formed of metal, plastic, or the like, a perforated plate, a punching metal, etc.) having a plurality of ventilation holes with good ventilation with little pressure loss. ) And a wind (air) F having a velocity component upward from the bottom of the workpiece receptacle 21 and having a velocity component toward one side in the horizontal direction (arrow A direction). An air blowing device 28 for blowing out is provided.

  As shown in FIG. 2, the workpiece receiver 21 is formed in a bowl shape having a tray-like spread so that the workpiece W can be kept in a certain range when the workpiece W is introduced from the outside. The central portion (the deepest portion) is positioned directly below the charging hopper 50. The workpiece receiver 21 is provided with a delivery portion 22 for delivering the workpiece W in one direction (arrow A direction).

  The delivery portion 22 is formed by cutting out the peripheral wall portion on the one side of the work receiver 21 in a concave shape from above to below. And from the lower edge of this sending part 22, the inclined bottom face 22a inclined so that it may gradually be located toward the deepest part of the workpiece | work receiver 21 is provided. The inclined bottom surface 22 a is formed so as to be gradually narrower from the deepest portion of the work receiver 21 toward the delivery portion 22.

  In addition, the inclination angle of the inclined bottom surface 22a is set so that the workpiece W dropped on the inclined bottom surface 22a can move to the workpiece transfer device 30 side by the flow deviating from the main flow as the wind F to one side. It is set to a gentle slope angle. However, the angle of the inclined bottom surface 22a may be set to a steep inclination angle that allows the work W to be lowered to the position where the wind F passes even when a flow deviating from the main flow flows. Further, the peripheral wall portion other than the inclined bottom surface 22a in the work receiver 21 is formed at a steep inclination angle such that the work W dropped on the peripheral wall portion falls to a position where the wind F passes.

  The air blowing device 28 is set so as to blow the wind F slightly inclined by an angle θ toward the sending portion 22 side that is the one side with respect to the vertical direction. As a result, the wind F mainly has a velocity component upward in the vertical direction and also has a velocity component toward the sending section 22 side.

  Therefore, the end wall 1 faces downward in a state where the work W in the work receiver 21 is floated by sending the wind F toward a wide area of the bottom surface of the work receiver 21 by the air blowing device 28. It moves to the sending part 22 side while aligning with the posture, and sends it out of the work receiving device 21 from the sending part 22. Here, the phenomenon that the workpiece W is aligned in a posture with the end wall 1 facing down can be explained by the relationship between the resistance to the wind due to the shape and the position of the center of gravity.

  On the other hand, the upstream end of the work transfer device 30 is continuously installed in the delivery unit 22 in the posture adjustment device 20. Further, the workpiece conveyance direction (arrow B direction) of the workpiece conveyance device 30 and the workpiece delivery direction (arrow A direction) of the posture adjustment device 20 are the same.

  The work transfer device 30 has air discharge holes 31B inclined in the transfer direction B arranged in a line on a work transfer plate 31 having an upper surface as a transfer surface 31A, and air is discharged obliquely upward from these air discharge holes 31B. Thus, the work W placed on the transport surface 31A is lifted, sucked with a predetermined force, and transported while applying a thrust to the downstream side.

  Further, the air ejected from the air ejection hole 31 </ b> B causes a flow of air flowing from the workpiece receiver 21 side into the upstream end portion of the workpiece conveying device 30. The upstream end portion of the workpiece transfer device 30 is provided at a position where the air flow can be exerted on the workpiece W moved to the delivery portion 22 side by the wind F.

  An air supply chamber 32 is formed under the work transfer plate 31. By introducing pressurized air from the air supply pipe 33 to the air supply chamber 32, air can be ejected from each air ejection hole. ing.

Next, the operation will be described.
When the work W is transported while adjusting its posture, the air blowing device 28 causes the wind F to be sent from the bottom to the top of the work receiver 21, and then the work W is thrown into the work receiver 21. . In the illustrated example, the workpiece W is dropped onto the workpiece receiver 21 from the hopper 50 directly above, but may be thrown in from the side. Simultaneously with the blowing of the wind F in the attitude adjustment device 20, also in the work transfer device 30, air is ejected from the air ejection holes 31 </ b> B by introducing pressurized air into the air supply chamber 32.

  When the workpiece W is thrown into the workpiece receptacle 21 in the above state, the workpiece W in the workpiece receptacle 21 is aligned in a posture in which the end wall 1 faces downward with the force of the wind F blowing from below. However, it moves to the sending unit 22 side and is sent out toward the work transfer device 30. At this time, an air flow for sucking the workpiece W into the workpiece conveyance device 30 also occurs from the workpiece conveyance device 30 side.

  For this reason, since the workpiece | work W which moved to the sending part 22 of the workpiece | work receiver 21 will be smoothly transferred on the conveyance surface 31A of the workpiece conveyance apparatus 30, the workpiece | work W does not stay in the sending part 22. FIG. .

  The workpiece W transferred from the workpiece acceptor 21 of the posture adjusting device 20 onto the conveying surface 31A of the workpiece conveying device 30 is caused by the oblique ejection of air, the levitation force, the suction force to the conveying surface 31A, and the thrust to the downstream side. And is stably and smoothly transported in the transport direction with the end wall 1 facing downward.

  As described above, the posture adjusting device 20 can stably send all the workpieces W to the workpiece transfer device 30 while adjusting the posture with only the force of the wind F, and causes deformation and scratches on the workpiece W. This can also be prevented. In addition, it is not necessary to provide extra equipment such as collecting the blown work as in the prior art, and the apparatus configuration can be simplified.

  In the above embodiment, the work receiver 21 formed in a bowl shape with a container-like member is used. However, as shown in FIG. 3, only the bottom surface portion 21s that needs to pass the wind F is provided with a plurality of ventilation holes. A workpiece receiver 21B formed of a member having a wall and configured by a plate member having a particularly low ventilation property may be used. The point is that the wind F can easily pass through from the bottom to the top and has a function of keeping the thrown-in work within a certain range so as not to jump out.

  Moreover, although not necessarily required, a cover for preventing the workpiece from popping out may be placed on the workpiece receivers 21 and 21B. At that time, for example, having a plurality of ventilation holes (for example, a net, a perforated plate, a punching metal, etc.) so as not to impair the floating force and moving force to the workpiece by the wind F blowing upward by covering the cover Is preferably used. In this case, the net or the like does not necessarily have to be as rigid as a metal net.

  Moreover, although the case where the attitude | position adjustment apparatus 20 was arrange | positioned in the start end of the workpiece conveyance line was shown in the said embodiment, you may arrange | position the attitude | position adjustment apparatus 20 in the middle of a workpiece conveyance line. For example, in a line for supplying a cap (work) to a bottle, when a storage unit for adjusting the supply amount of the cap is provided, the above-described posture adjustment device 20 is disposed downstream of the storage unit, and the normality is set there. You may make it align with this attitude | position. Further, the posture adjusting device 20 may be interposed in the middle of the transport line in preparation for the case where the direction of the cap changes during the transport. When the posture adjusting device 20 is arranged in the middle of the conveyance line as described above, the shapes of the work receivers 21 and 21B are preferably changed according to the surrounding environment.

  Moreover, although the example using the workpiece conveyance apparatus 30 which conveys the workpiece | work W with air was shown in the said embodiment, you may comprise this workpiece conveyance apparatus by normal conveyance means, such as a belt conveyor.

  Furthermore, a cap boxing device may be arranged in place of the workpiece transfer device 30. In this case, since the workpieces W as caps can be packed in order in the same direction, many workpieces W can be accommodated in a small volume box, and the workpieces W are rubbed during conveyance. Therefore, it is possible to sufficiently prevent damage.

  Further, when the cap which is the workpiece W is transported to the capping machine, the cap reversing portion is reversed during the transportation so that the opening of the cap faces downward (the end wall 1 is reversed so as to be positioned upward). Will be provided.

1 is a side sectional view showing a schematic configuration of a workpiece alignment / conveyance apparatus according to an embodiment of the present invention. It is a perspective view which shows the structure of the workpiece | work receiver in the same embodiment. It is a perspective view which shows the example of the other workpiece | work receiver in the same embodiment.

Explanation of symbols

W Cap-shaped Work 1 End Wall 2 Peripheral Wall 10 Work Aligning and Conveying Device 20 Posture Adjusting Device 21, 21B Work Acceptor 22 Sending Unit 22a Inclined Bottom 28 Air Blowing Device 30 Work Conveying Device 31 Conveying Plate 31A Conveying Surface

Claims (3)

A cap-shaped workpiece posture adjusting device for carrying out a cap-shaped workpiece having a cylindrical wall and an end wall while aligning the posture with the end wall facing downward,
A work receptacle having a plurality of ventilation holes at least at the bottom and capable of receiving the work supplied from the outside;
By blowing air having a velocity component upward from the bottom of the workpiece receiver and having a velocity component toward one side in the horizontal direction, the workpiece supplied to the workpiece receiver is levitated and the end wall And an air blowing device for carrying out the workpiece from the one side to the outside of the workpiece receiver while aligning the posture in a state in which the head is directed downward. . A posture adjusting device for a cap-shaped workpiece according to claim 1,
An apparatus for adjusting a posture of a cap-shaped workpiece, wherein the workpiece receptacle is provided with a feeding portion in which a part of the peripheral wall portion on the one side is cut out in a concave shape from above to below. A cap-shaped workpiece comprising a combination of the cap-shaped workpiece posture adjusting device according to claim 1 and the workpiece conveying device continuously installed on one side of the workpiece receiver in the posture adjusting device. An alignment transport device of
The work transfer device includes a work transfer plate having an upper surface as a transfer surface, and air discharge holes inclined in the transfer direction arranged in a row, and air is discharged obliquely upward from the air discharge holes, thereby receiving the workpiece. An apparatus for aligning and transporting cap-shaped works, wherein the work is supplied while being lifted from a container onto the work transport plate and transported with thrust.

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