JP2013128864A - Glass tube sorting apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a glass tube sorting apparatus 10 capable of carrying out quick and reliable sorting treatment of defective glass tubs G3 without causing the damage and flaw of glass tubes even if increasing the production speed of glass tubes.SOLUTION: The glass tube sorting apparatus 10 includes a conveyor 1 conveying, in a lateral row direction, a plurality of glass tubes (G2, G3) placed in a lateral row state on a traveling forward path 121 of an endless traveling body 12; a plurality of partition bodies 2 provided at equal spaces on the endless traveling body 12 to partition the plurality of glass tubes (G2, G3) one by one; an air jetting means 3 provided below the traveling forward path 121 to blow off the defective glass tubes G3 upward from the traveling forward path 121; and a receiving means 4 provided above the traveling forward path 121 to receive the blown-off defective glass tubes G3.

Description

  The present invention relates to a glass tube sorting device, and more particularly to a glass tube sorting device that sorts and removes defective products while conveying a plurality of glass tubes.

  Conventionally, in the production process of a glass tube used for a backlight, for example, as shown in FIG. 5, the inspection device 100 performs an appearance inspection such as bubbles and blisters on a continuous glass tube G1 continuously drawn. Inspection of dimensions such as outer diameter and wall thickness is performed, and then a continuous glass tube G1 is cut by a predetermined length by the cutting device 200 to form a plurality of glass tubes G2, and each glass tube G2 is dropped on the sorting table 300. On the sorting table 300, the glass tube G3 determined to be defective based on the inspection result of the inspection apparatus 100 is blown to the collection unit 500 side by air injection of the blast nozzle 400, while it is determined to be non-defective. Each glass tube (G2, G3) was selected by blowing the glass tube G2 to the conveyor 700 side by air injection from the blast nozzle 600.

  However, in this glass tube sorting method, since each glass tube (G2, G3) was sorted on the sorting table 300, when the production rate of the glass tube was increased, sorting on the sorting table 300 could not follow, There was a problem that the glass tubes were in contact with each other, and the glass tubes were damaged or damaged. In particular, the glass tube for the backlight has a relatively small diameter (about 2 to 4 mm) and the pulling speed of the continuous glass tube G1 is relatively large. The demand for improvement in production speed could not be fully met.

  Thus, to date, a plurality of glass tubes G2 obtained by cutting the continuous glass tube G1 are directly dropped onto the conveyor, and only defective glass tubes are blown off to the collection unit provided on the upstream side of the conveyor. Therefore, a sorting device that improves sorting ability has been proposed (see, for example, Patent Document 1 below).

Japanese Utility Model Publication No. 7-34972

  However, in the sorting apparatus described in Patent Document 1, when the production rate of the glass tube is increased, the contact between the non-defective glass tubes on the conveyor becomes intense, and there is a problem that the glass tube is damaged or damaged. there were.

  The present invention was made in view of the above-mentioned problems in the conventional glass tube sorting apparatus, and even if the production rate of the glass tube is increased, the glass tube is damaged or damaged. It is an object of the present invention to provide a glass tube sorting device that can quickly and reliably sort.

  The present invention includes an endless traveling body that circulates between a plurality of rotating bodies, and transports a plurality of glass tubes placed in a row on the traveling path of the endless traveling body in the row direction. A conveyor, a plurality of partition bodies provided at equal intervals on the endless traveling body of the conveyor, and a plurality of partitions for partitioning a plurality of glass tubes one by one on the traveling forward path; a plurality of partition bodies provided below the traveling outbound path of the conveyor; A blowing means for blowing a defective glass tube out of the traveling forward path, and a receiving means for receiving the glass tube blown by the blowing means provided above the traveling outbound path of the conveyor. It is characterized by that.

  Moreover, this invention is characterized by the space | interval of the said partition bodies being larger than the outer diameter of the said glass tube, and being smaller than 1.5 times of this outer diameter.

  Further, the present invention is characterized in that the squirting direction of the squirting means is inclined toward the conveying downstream side of the conveyor.

  Further, the present invention is characterized in that the traveling path of the conveyor is inclined so as to become lower toward the conveyance downstream side of the conveyor.

  According to the glass tube sorting apparatus according to the present invention, since the partition body for partitioning the glass tubes one by one is provided on the endless traveling body of the conveyor, even if the production speed of the glass tube is increased, the conveyor A rapid sorting process can be performed without causing the glass tubes to come into violent contact with each other and causing damage or damage to the non-defective glass tubes.

  In addition, since each glass tube being conveyed can be partitioned one by one by the partition, it is possible to reliably remove the defective glass tubes by blowing means, and this also speeds up the sorting process. Can be achieved.

  Further, the defective glass tube on the traveling path of the conveyor is blown up above the traveling path by the blowing means, and the blown glass tube is received above the traveling path by the receiving means. It is possible to blow out and remove defective products even in the middle, and the degree of freedom in designing the apparatus is very high, and there is no difficulty that the sorting and removing position is limited to the most upstream part of the conveyor as in the prior art.

  Further, according to the glass tube sorting apparatus in which the interval between the partitions is larger than the outer diameter of the glass tube and smaller than 1.5 times the outer diameter, the conveyance stability of the glass tube by the conveyor, and the fume means The certainty of blow-off removal of defective glass tubes can be further improved.

  In addition, according to the glass tube sorting device in which the blasting direction of the squirting means is inclined toward the conveyance downstream side of the conveyor, the defective glass tube is made more stable by utilizing the inertia force of the conveyance movement of the glass tube by the conveyor. It can be blown obliquely upward and collected by the receiving means, and the certainty of the sorting process can be further improved.

  In addition, according to the glass tube sorting device in which the traveling path of the conveyor is inclined so as to become lower toward the conveyance downstream side of the conveyor, the defective glass tube is more easily inclined obliquely upward toward the conveyance downstream side of the conveyor. In addition, since each glass tube can be positioned on the traveling forward path by utilizing the weight of each glass tube, the sorting operation of each glass tube can be performed more quickly and reliably.

It is a side view of the glass tube sorting device of this embodiment. It is a top view of the glass tube sorting device of this embodiment. It is an expansion partial side view of the partition of the glass tube sorting device of this embodiment. It is a side view of other embodiment of the glass tube sorting device concerning the present invention. It is a side view of the conventional glass tube sorting device.

  As shown in FIGS. 1 to 3, the glass tube sorting apparatus 10 of the present embodiment is provided at equal intervals on the conveyor 1 that conveys a plurality of glass tubes (G 2, G 3) and the endless traveling body 12 of the conveyor 1. , A plurality of glass tubes (G2, G3), an insufflation means 3 for blowing the defective glass tube G3 upward, and the defective glass blown by the insufflation means 3. Receiving means 4 for receiving the tube G3.

  The conveyor 1 includes an endless traveling body 12 that circulates between a pair of rotating bodies 11 and 11, and a plurality of glass tubes (G 2 and G 3) are disposed on a traveling forward path 121 of the endless traveling body 12. The glass tubes (G2 and G3) are placed in parallel in a row state and are continuously conveyed in the row direction. The conveyor 1 of this embodiment is comprised from a pair of chain conveyor arranged in parallel, as shown in FIG. 2, and each chain conveyor is endless running which consists of a chain between a pair of rotary bodies 11 * 11 which consist of sprockets. The body 12 is constructed so as to be able to circulate. In the present embodiment, the traveling forward path 121 of the endless traveling body 12 is horizontal.

  A large number of partition bodies 2 are provided at equal intervals on each endless traveling body 12 of the conveyor 1, and each of the plurality of glass tubes (G2 and G3) is partitioned one by one on the traveling forward path 121 of each endless traveling body 12. It is. Each partition 2 is attached to an endless traveling body 12 made of a chain via an attachment (not shown), and the interval between the attachments is appropriately determined according to the outer diameter of the glass tubes (G2 and G3) to be selected. Can be adjusted. In this embodiment, as shown in FIG. 3, the shortest interval I between the partitions 2 is larger than the outer diameter D of the glass tube (G2 · G3) and smaller than 1.5 times the outer diameter D. Yes.

  The squirting means 3 is provided below the traveling forward path 121 of the endless traveling body 12 of the conveyor 1 and blows the defective glass tube G3 out of the traveling forward path 121 out of the plurality of glass tubes (G2 and G3). is there. The squirting means 3 of the present embodiment includes a pair of squirting nozzles 31 arranged symmetrically along the longitudinal direction of the glass tubes (G2 and G3), and the defective glass tube G3 passes above the squirting means 3. At this time, gas is ejected from each of the nozzles 31 and the glass tube G3 is blown up above the traveling forward path 121 while maintaining its horizontal posture. Moreover, in this embodiment, the squirting direction of the squirting means 3 is inclined toward the conveyance downstream side of the conveyor 1, and the defective glass tube G3 can be blown obliquely upward toward the conveyance downstream side of the conveyor 1. it can.

  The receiving means 4 is provided above the traveling forward path 121 of the endless traveling body 12 of the conveyor 1 and receives the defective glass tube G3 blown obliquely upward by the fusible means 3. The receiving means 4 of the present embodiment includes a substantially horizontal bottom plate portion 41, a return portion 42 provided at the tip of the bottom plate portion 41, and a back plate portion 43 provided at the rear end of the bottom plate portion 41. The defective glass tube G3 blown off is received between the return portion 42 and the back plate portion 43 and stored. In order to immediately convey the received defective glass tube G3, the receiving means 4 may be constituted by, for example, a belt conveyor.

  Hereinafter, the glass tube sorting operation to which the glass tube sorting apparatus 10 of the present embodiment is applied will be described.

  First, as shown in FIGS. 1 and 2, for a continuous glass tube G1 continuously drawn by, for example, the Danner method, a known inspection device 5 is used to inspect external appearances such as bubbles and blisters, Immediately after dimensional inspection such as wall thickness, a continuous glass tube G1 is cut by a predetermined length by a known horizontal rotary cutting device 6 to form a plurality of glass tubes (G2, G3), and the obtained glass The pipes (G2 and G3) are dropped directly onto the traveling forward path 121 of the endless traveling body 12 of the conveyor 1.

  The glass tubes (G2 and G3) dropped on the conveyor 1 are continuously conveyed in a state of being partitioned one by one by the partition 2. Then, the glass tube G3 determined to be defective based on the inspection result of the inspection device 5 is blown up above the traveling forward path 121 by the gas injection of the squirting means 3 at a position above the squirting means 3 and collected by the receiving means 4. Is done. On the other hand, the glass tube G2 determined to be non-defective is transported by the conveyor 1 as it is without being blown off by the blowing means 3, and reaches the next process. Thus, the glass tube (G2, G3) sorting operation is performed.

  In this embodiment, the quality of each glass tube (G2, G3) is determined based on the result of the inspection of the continuous glass tube G1, and the actual sorting operation is performed after the glass tube (G2 after cutting). -Although it is performed with respect to G3), for example, you may be made to judge based on the result of the test | inspection with respect to the glass tube after a cutting | disconnection of each glass tube (G2 * G3).

  As described above, the glass tube sorting apparatus 10 of the present embodiment is provided with the partition body 2 for partitioning the glass tubes (G2 and G3) one by one on the endless traveling body 12 of the conveyor 1, so that the production rate of the glass tube is increased. Even if the size is increased, a quick sorting process can be performed without causing the glass tubes to come into violent contact with each other on the conveyor as in the conventional case, causing damage or damage to the non-defective glass tubes.

  Moreover, since each glass tube (G2, G3) being conveyed can be partitioned one by one by the partition 2, the defective glass tube G3 can be blown out and removed reliably by the blowing means 3. In this way, it is possible to speed up the sorting process.

  Further, the glass tube sorting apparatus 10 of the present embodiment blows the defective glass tube G3 on the traveling forward path 121 of the conveyor 1 to the upper side of the traveling forward path 121 by the blowing means 3, and receives the blown glass tube G3. Therefore, the defective product can be blown out even in the middle of the traveling forward path 121 of the conveyor 1, and the degree of freedom in designing the apparatus is high. There is no difficulty that the removal position is limited to the most upstream part of the conveyor.

  In the glass tube sorting apparatus 10 of the present embodiment, the interval I between the partitions 2 is larger than the outer diameter D of the glass tube G2, and smaller than 1.5 times the outer diameter D. 1 can improve the conveyance stability of the glass tubes (G2, G3) by 1 and the certainty of removing the defective glass tube G3 by the blowing means 3.

  Moreover, since the glass tube sorting apparatus 10 of this embodiment inclines the squirting direction of the squirting means 3 toward the transport downstream side of the conveyor 1, the inertia force of the transport movement of the glass tube by the conveyor 1 is utilized. The defective glass tube G3 can be more stably blown obliquely upward and collected by the receiving means 4, and the certainty of the sorting process can be further improved.

  The glass tube sorting apparatus 10 of the present embodiment has been described above, but the present invention can also be implemented in other embodiments.

  For example, like the glass tube sorting apparatus 20 shown in FIG. 4, the traveling forward path 121 of the endless traveling body 12 of the conveyor 1 may be inclined so as to become lower toward the conveyance downstream side of the conveyor 1. In this way, the defective glass tube G3 can be more easily blown obliquely upward toward the conveyance downstream side of the conveyor 1, and on the traveling forward path 121 of the conveyor 1 using the own weight of each glass tube. Since each glass tube can be positioned, the sorting operation of each glass tube can be performed more quickly and reliably.

  Further, like the glass tube sorting device 20, a plurality of glass tubes (G 2 and G 3) obtained by cutting a continuous glass tube G 1 by a predetermined length by a known cutting device 6 are conveyed via an inclined guide 7. One traveling forward path 121 may be supplied. Thereby, the drop impact applied to each glass tube (G2, G3) at the time of supply can be reduced, and the damage of each glass tube can be prevented. Further, in order to suppress the backlash of the glass tubes (G2 and G3) at the time of supply, a stabilizing air blowing means 8 for injecting gas downward above the supply position may be provided.

  The present invention can be carried out in other modes without various modifications, modifications, and variations based on the knowledge of those skilled in the art without departing from the spirit of the present invention. In addition, any invention-specific matters may be replaced with other technologies within the scope where the same action or effect occurs, and the integrally-configured invention-specific matters are constituted by a plurality of members. Alternatively, the invention specific items configured by a plurality of members may be implemented in an integrated configuration.

DESCRIPTION OF SYMBOLS 10, 20 Glass tube sorter 1 Conveyor 11 Rotating body 12 Endless traveling body 121 Traveling outward path 2 Partition body 3 Foaming means 4 Receiving means D Outer diameter G1 of glass tube Continuous glass tube G2 Glass tube G3 Defective glass tube I Partition body Spacing between each other

Claims (4)

A conveyor that includes an endless traveling body that circulates between the plurality of rotating bodies and that circulates, and that conveys a plurality of glass tubes placed in a row on the traveling path of the endless traveling body in the row direction;
A plurality of partitions provided at equal intervals on the endless traveling body of the conveyor, and partitioning a plurality of glass tubes one by one on the traveling forward path;
A blow unit provided below the traveling forward path of the conveyor, and blowing out defective glass tubes out of the traveling forward path among a plurality of glass tubes;
A receiving means which is provided above the traveling path of the conveyor and receives a glass tube blown off by the blowing means;
A glass tube sorting apparatus comprising:   The glass tube sorting apparatus according to claim 1, wherein an interval between the partitions is larger than an outer diameter of the glass tube and smaller than 1.5 times the outer diameter.   3. The glass tube sorting apparatus according to claim 1, wherein a squirting direction of the squirting means is inclined toward a conveyance downstream side of the conveyor.   The glass tube sorting apparatus according to any one of claims 1 to 3, wherein the traveling path of the conveyor is inclined so as to become lower toward a conveyance downstream side of the conveyor.

Images