JP3690545B2 - Glass tube quantitative transfer device - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a glass tube quantitative transfer device that accumulates and transfers a predetermined number of glass tubes cut into a predetermined length and continuously sent.
[0002]
[Prior art]
Generally, a glass main tube drawn continuously in a glass tube manufacturing process is cut at a predetermined length, and after cutting, a predetermined inspection (appearance, dimensions, shape, scratches, etc.) is performed and it is determined as a defective product. The glass tube thus selected is sorted and removed, and in a state where defective products have been removed in some places, the glass tube is sent to a packing process by a conveyor and sequentially stacked and packed in a container or the like.
[0003]
When sequentially stacking and packing glass tubes that have been sent to the packing process into a container, etc., defective products will be missing at random, so it is necessary to absorb the glass tubes. A predetermined number of glass tubes corresponding to one layer are accumulated on the fixed amount rail, a fixed rail is installed in front of this fixed amount rail, and when a predetermined number of glass tubes are accumulated on the fixed amount rail, the gate is closed. A device has been proposed in which the subsequent glass tube is supported on a fixed rail, prevented from entering the metering rail, the glass tube on the metering rail is transferred to the transfer table, and packed through the transfer table. (For example, see JP-A-51-95359).
[0004]
[Problems to be solved by the invention]
In the conventional apparatus, since the subsequent glass tubes are accumulated on the fixed rail while the predetermined number of glass tubes on the fixed amount rail are transferred onto the transfer table, the next time the gate is opened, When the accumulated glass tubes flow onto the fixed rail at a stretch, there is a problem that the alignment state of the glass tubes is disturbed or the glass tubes are damaged due to excessive contact impact between the glass tubes. Further, since the transfer table of the conventional apparatus has a recess for individually supporting the glass tubes, the transfer table must be replaced every time the type (outer diameter) of the glass tube is changed. It also contributes to a decrease in work efficiency.
[0005]
Therefore, an object of the present invention is to take out and transfer a predetermined number of glass tubes in a stable state without giving excessive impact to the glass tubes while absorbing the omission of the glass tubes sent by the conveyor. It is an object of the present invention to provide a glass tube quantitative transfer device that can perform an efficient operation without changing the transfer table even when the type (outer diameter) is changed.
[0006]
[Means for Solving the Problems]
The present invention has been made in view of the above-described problems and objects, and is a continuous drive feed conveyor that supports and conveys glass tubes one by one in parallel via attachments attached to an endless chain at predetermined intervals. And a plurality of forward / backward moving bases that move forward and backward by individual forward / backward movement means from the glass tube take-out position set in the downward running area of the feed conveyor to the glass tube transfer position to the next process, It is supported so that it can be moved up and down by an elevating means while being inclined in the forward direction, has a flat upper surface, and has a projection for chamfering the glass tube at the tip, and the supporting position of the glass tube is set to each forward / rearward moving platform. Supporting the attachment of the feed conveyor via a plurality of transfer stands arranged differently in the glass tube axis direction and the glass tube detection sensor installed in front of the glass tube take-out position of the feed conveyor The presence or absence of the glass tube being conveyed is detected, and when there is a glass tube, the transfer table that is raised at the glass tube take-out position of the feed conveyor is moved forward and backward by the outer diameter of the glass tube by the forward / reverse means. The glass tube is supported in order from the section, and when there is no glass tube, a quantitative take-out control unit for controlling the forward / reverse means to stop the transfer table until the next glass tube is sent, and a glass tube of the feed conveyor If the transfer table in a raised state at the take-out position is completed the removal of the glass tube of a predetermined number, to advance the transfer table to the glass tube transfer position to the next step, the transfer feed stand lowered and glass at this forward end The tube is transferred to the next process, and during this time, the next transfer stand waiting is raised below the glass tube take-out position to continue taking out the glass tube from the feed conveyor, and Move the transfer table after the transfer of the glass tube to the process to the lower position of the glass tube take-out position of the feed conveyor and wait until the next glass tube take-off. It is a glass tube fixed quantity transfer device characterized by comprising a transfer control part which controls each forward / backward moving means and raising / lowering means to perform it repeatedly.
[0007]
[Action]
The glass tube detection sensor detects the presence or absence of a glass tube supported by the attachment of the feed conveyor and transported to the glass tube removal position. When there is a glass tube, the transfer is in the elevated state at the glass tube removal position of the feed conveyor. The table is moved forward and backward by the outer diameter of the glass tube to support the glass tube in order from the foremost part. When there is no glass tube, the transfer table should be stopped until the next glass tube is sent. Since the fixed quantity take-out control unit for controlling the forward / backward moving means is provided, the rolling movement of the glass tube when supported by the transfer table can be minimized.
[0008]
Since the upper surface of the transfer table is a flat surface, it can be used for any kind of glass tube (outer diameter) and is inclined in the forward direction, so that the glass tube is stacked forward, and the feed conveyor It is possible to take out a predetermined number of glass tubes by absorbing the omission of the glass tubes.
[0009]
The transfer table from which a predetermined number of glass tubes have been taken out is advanced by the transfer control unit to the transfer position for the next process via the forward / reverse means, and at this position, the transfer table is lowered and the glass tube is transferred to the next process. Then, retract to the glass tube take-out position of the feed conveyor and wait until the next glass tube is taken out. During this time, the glass tube is continuously taken out by another transfer stand, and this operation is sequentially performed at each transfer stand. Since it repeats, the fixed transfer of the glass tube can be smoothly performed while the feed conveyor is continuously driven.
[0010]
Since each of the transfer bases has the glass tube support position different in the glass tube axis direction, there is no interference even if the plurality of transfer bases individually move forward and backward.
[0011]
【Example】
Hereinafter, based on an Example, the glass tube fixed_quantity | transfer apparatus of this invention is demonstrated.
[0012]
FIG. 1 is a schematic side view showing an embodiment of a glass tube fixed amount transfer device according to the present invention, FIG. 2 is a schematic plan view, FIG. 3 is a schematic front view, and FIG. In these drawings, 1 is a feed conveyor, 2 and 3 are forward / backward moving bases, 4 and 5 are transfer bases, 6 and 7 are forward / backward moving means, 8 and 9 are lifting / lowering means, 10 is a glass tube detection sensor, and 11 is a fixed amount. The take-out control unit, 12 is a transfer control unit, and a is a glass tube. In addition, a present Example has illustrated the case where two back-and-forth advance stands and a transfer stand are used.
[0013]
The feed conveyor 1 supports and conveys glass tubes a having a predetermined length in parallel one by one via attachments 1b attached to the endless chain 1a at predetermined intervals, and is continuously driven. This feed conveyor 1 receives a glass tube a of a predetermined length one by one from the previous process at a receiving portion 1c set in the upward traveling area and conveys it to the glass tube take-out position 1d set in the downward traveling area.
[0014]
The forward / backward moving bases 2 and 3 are fixed to the fixed frame 13 so as to be slidable back and forth individually between the glass tube take-out position 1d set in the downward running area of the feed conveyor 1 and the glass tube transfer position to the next process. It is supported and individually moved forward and backward by the forward and backward advance means 6 and 7 installed between the fixed frame 13 and the forward and backward advance bases 2 and 3. In the embodiment, the forward / backward moving means 6 and 7 are constituted by servo motors 6a and 7a and ball screws 6b and 7b, but are not limited thereto.
[0015]
The transfer tables 4 and 5 support the glass tube a at a plurality of locations in the tube axis direction (two locations in the illustrated example). 9 are supported so as to be movable up and down, and the upper surface is a flat surface, and has projections 4a and 5a for chamfering the glass tube a at the tip thereof, and the supporting position of the glass tube a is set to each of the forward and backward advancing platforms 2, 3 Are arranged differently in the direction of the axis of the glass tube to prevent mutual interference. Although the raising / lowering means 8 and 9 have illustrated the case where a fluid pressure cylinder is used in the Example, it is not limited to this.
[0016]
The fixed quantity take-out control unit 11 is provided with the presence or absence of a glass tube a that is supported and conveyed by the attachment 1b of the feed conveyor 1 via the glass tube detection sensor 10 installed in front of the glass tube take-out position 1d of the feed conveyor 1. When there is a glass tube, the transfer table 4 or 5 at the glass tube take-out position 1d of the feed conveyor 1 is moved forward by the outer diameter of the glass tube a by the forward / backward moving means, and the glass is sequentially turned from the front. When the tube a is supported and there is no glass tube, the forward / reverse means 6 or 7 is controlled to stop the transfer table 4 or 5 until the next glass tube a is sent.
[0017]
The transfer control unit 12 moves the transfer table 4 to the next step when the transfer table, for example, 4 in the ascending state at the glass tube extraction position 1d of the feed conveyor 1, finishes extracting the predetermined number of glass tubes a. A predetermined number of glass tubes a on the transfer table 4 are gripped by the gripping device at this forward end. During this time, the next transfer stand 5 that is waiting is raised below the glass tube take-out position 1d to continue taking out the glass tubes a from the feed conveyor 1, and the transfer of the glass tubes a to the next process is completed. The transfer table 4 is lowered and retracted at a high speed to the lower side of the glass tube take-out position 1d of the feed conveyor 1 to stand by until the next glass tube take-off. The forward / backward moving means 6 and 7 and the lifting and lowering means 8 and 9 are controlled so as to be repeated sequentially. The above control operation of the transfer control unit 13 detects, for example, the fixed frame 13 at the forward end, the backward end, and the extraction end of the predetermined number of glass tubes a corresponding to the fixed points of the forward / rearward moving platforms 2 and 3. Position detection sensors (not shown) to be installed, the forward / backward movement of the forward / backward moving bases 2 and 3 are controlled via the forward / backward moving means 6 and 7 according to the detection signals of the respective position detecting sensors, The raising and lowering operations 4 and 5 are performed at the forward end of the forward / backward moving bases 2 and 3 in connection with the transfer operation of the next process, and at the backward end, when the predetermined number of transfer tables being taken out of the glass tube are taken out. It is something that is related.
[0018]
The embodiment of the present invention has the above configuration, and the operation will be described next. The glass tube a having a predetermined length is supported and transported in parallel by each attachment 1b of the feed conveyor 1. While the glass tube a is moved downward by the feed conveyor 1, one transfer table 4 stands by in a raised state, and the glass tube a is supported by the transfer table 4. The glass tube detection sensor 10 installed before the glass tube a is taken out to the transfer table 4 detects the presence or absence of the glass tube a on the feed conveyor 1, and if there is a glass tube a, the signal to that effect is quantified. By sending it to the take-out control unit 11 and driving the forward / reverse means 6, for example, the servo motor 6 a to rotate the ball screw 6 b, the transfer table 4 is advanced at the same speed as the feed conveyor 1, and the transfer table 4 is moved to the transfer table 4. The first glass tube a is supported. The first glass tube a is blocked by the protrusion 4a at the tip of the transfer table 4, and when the second glass tube a is detected by the glass tube detection sensor 10, the forward / reverse means 6 is driven in the same manner as described above. Then, the second glass tube a is supported by the transfer table 4. Since the transfer table 4 is inclined in the forward direction, even when the glass tube a is removed in some places on the feed conveyor 1, the glass tube a is stacked forward and aligned in a seamless state. When there is no glass tube a on the feed conveyor 1, the signal of the glass tube detection sensor 10 is sent to the quantitative take-out control unit 11, the driving of the forward / reverse means 6 is stopped, and the forward movement of the transfer table 4 is stopped. Wait until the glass tube a is sent. Thereby, the rolling movement of the glass tube a on the transfer table 4 can be minimized, and the glass tube a can be supported without giving an excessive impact to the glass tube a and without disturbing the alignment state of the glass tube a. In this way, when the predetermined number of glass tubes a are taken out from one transfer table 4, the transfer table 4 is advanced at a high speed to the glass tube transfer position to the next process, and the other transfer table 5 Then, the glass tubes a sent by the feed conveyor 1 are successively supported. After a predetermined number of glass tubes a on the transfer table 4 are transferred by the gripping device at the glass tube transfer position, the transfer table 4 is lowered by the elevating means 8 and retreated at a high speed by the forward / rearward movement means 6. Next to the transfer table 5, the glass tube a is kept in a standby position where it can be supported. When one of the transfer tables 4 is retracted, the transfer table 4 is in a lowered state, so that it does not interfere with the other transfer table 5. When the other transfer table 5 finishes taking out the predetermined number of glass tubes a and moves forward at a high speed, the transfer table 4 on standby rises by the lifting means and takes over the support of the glass tubes a of the feed conveyor 1. Thereafter, the transfer tables 4 and 5 repeat the above operation.
[0019]
Although the embodiment of the present invention has been described with respect to the case where two transfer tables and forward / rearward movement tables are provided, the present invention is not limited to this.
[0020]
【The invention's effect】
According to the present invention, the glass tube detection sensor and the quantitative take-out control unit minimize the rolling movement of the glass tube on the transfer table, do not give excessive impact to the glass tube, and align the glass tubes. Without disturbing the state, a predetermined number of glass tubes can be taken out by the transfer table.
[0021]
Since the transfer table is inclined in the advancing direction, even when the glass tube is pulled out on the feed conveyor, the glass tube is placed forward on the transfer table and exhibits a seamless alignment state. Moreover, since the upper surface of a transfer stand is a flat surface, it can be shared also about the glass tube of a different outer diameter.
[0022]
A plurality of transfer stands are used, and the transfer control unit keeps the feed conveyor continuously driven, and sequentially repeats the glass tubes of the feed conveyor to the plurality of transfer stands and transfers them to the next process smoothly. be able to.
[0023]
Since each transfer table has a glass tube support position that is different in the glass tube axis direction, even if a plurality of transfer tables move forward and backward separately, they do not interfere with each other.
[Brief description of the drawings]
FIG. 1 is a schematic side view showing an embodiment of a glass tube quantitative transfer device according to the present invention.
FIG. 2 is a schematic plan view.
FIG. 3 is a schematic front view.
FIG. 4 is an operation diagram of the transfer table.
[Explanation of symbols]
a glass tube 1 feed conveyor 1b attachment 1d glass tube take-out device 2, 3 forward / backward moving base 4, 5 transfer base 4a, 5a protrusions 6, 7 forward / backward moving means 8, 9 lifting / lowering means 10 glass tube detection sensor 11 quantitative take-out control part 12 Transfer control unit

Claims (1)

From a continuous drive feed conveyor that conveys glass tubes one by one in parallel via attachments attached to an endless chain at predetermined intervals, and a glass tube take-out position set in the downward running area of the feed conveyor A plurality of forward / backward bases that move forward and backward by individual forward / backward means up to the glass tube transfer position to the next process, and supported by the lifting / lowering means in a state of being inclined in the forward direction on each forward / backward base. And the upper surface is a flat surface, it has a protrusion that stops the glass tube at the tip, and a plurality of transfer stands that are arranged with the support position of the glass tube different in the glass tube axis direction in each forward and backward advancement stage, and It detects the presence or absence of the glass tube that is supported by the attachment of the feed conveyor and conveyed through the glass tube detection sensor installed in front of the glass tube take-out position of the feed conveyor. At the time of transfer, the transfer stand in the lifted state at the glass tube take-out position of the feed conveyor is moved forward and backward by the outer diameter of the glass tube to support the glass tube in order from the front, and when there is no glass tube, A fixed quantity take-out control unit that controls the forward / backward moving means to stop the transfer table until the next glass tube is sent, and a transfer table that is in the raised state at the glass tube take-out position of the feed conveyor is a predetermined number of glass tubes. Upon completion of the extraction, to advance the transfer table to the glass tube transfer position to the next step, to perform the transfer to the transfer feed stand lowered and the glass tube next step in this forward end, during this time, the glass The next transfer stand in standby is lifted below the tube take-out position to continue taking out the glass tube from the feed conveyor, and the transfer stand after the transfer of the glass tube to the next process is completed. The glass tube is retracted to a position below the glass tube take-out position to stand by until the next glass tube is taken out, and the forward / backward moving means and the lifting / lowering means are controlled so that this operation is sequentially repeated with respect to each transfer table and forward / backward moving table. A glass tube quantitative transfer device comprising a transfer control unit.

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