JPH0620793B2 - Gate processing equipment for plastic molded products - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention eliminates the gate marks left at the time of molding by pressing a horn of an ultrasonic welder and whether or not the corresponding erasure is performed correctly. The present invention relates to a plastic molded product, such as a blood sampling bottle, a container, and other gate processing devices, which detects the occurrence of flashover due to high voltage.

[Conventional technology]

Conventionally, the gate left behind during molding has been made as small as possible and left as it is, or manually cut out.

[Problems to be Solved by the Invention]

The former described in the above-mentioned prior art has a small number of gates, but has a low commercial value if left unattended, and the latter is labor-intensive and once poor in productivity.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a novel plastic molded product gate processing apparatus capable of efficiently removing the remaining gate and detecting whether or not the removal is correctly performed.

[Means for Solving the Problems] In order to achieve the above-mentioned object, a gate processing device for a plastic molded product of the present invention comprises a transfer device provided on a machine base and intermittently stopped, and a work support provided on the transfer device. Part, the horn moves toward and away from the gate of the work while the work is temporarily stopped, and the ultrasonic welder provided on the machine base in the state of performing the gate extinction process and the gate extinction process on the transfer device It has a pinhole checker installed on the machine base that supports the high-voltage electrode and the ground electrode on both sides of the moving path of the work while holding the gate extinguished parts and in a state that does not hinder the movement of the work. is there.

〔Example〕

The first embodiment shown in FIGS. 1 and 2 has a machine conveyor (not shown) having a chain conveyor (2) having a large number of work supporting portions (1) at regular intervals and which is temporarily stopped. ) Is installed on one side of this conveyor (2) and equipped with an ultrasonic welder body (not shown) with a welding time setting timer, and the horn (4) of this ultrasonic welder is installed via the support section (5). On the machine stand, the horn (4) is supported by the work support part (1) and the gate disappears untreated blood collection bottle (6) (work) toward the gate (7) of the blood collection bottle (6). Cylinder (not shown) moves forward / backward in the suspended state to support the gate (7) in the state of extinguishing it and collect blood at the side of the moving path of the blood sampling bottle (6) when extinguishing the gate. A guide (8) is provided to allow the bottle (6) to hit and slide, and a pinhole checker ( (Not shown), the high-voltage electrode (11) of this pinhole checker is placed on the machine base via the support (12), and the gate extinction treated part (9) of the gate extinction treated blood collection bottle (9) 13) and the ground electrode (14) of the same pinhole checker is supported on the machine base via a supporting part (not shown), and the ground electrode (14) is connected to the high voltage electrode. It is supported as a state of inserting and withdrawing into the blood collection bottle (9) that has been treated to eliminate gade corresponding to (11), and further, an air ejection nozzle for defective product removal is installed on the machine side near the moving side of the checked blood collection bottle (10). (16) is equipped with a blood collection bottle (15) having a defective gate extinction process so as to eject air when receiving a defective product command described later.

In the second embodiment shown in FIG. 3 to FIG. 5, a turntable (21) is provided on the machine base (20) to advance by three frames, and the gate disappears at all outer edges of the turntable (21). Processing blood collection bottle
A large number of vertical grooves (22) suitable for holding the (6) freely detachable are provided at equal intervals, and a belt conveyor (23) is provided on one side of the turntable (21) of the belt conveyor (23). It is delivered with the tip inserted under the turntable (21), and the turntable (2
A pair of left and right guides (2
4) (24) 'is installed in a state of being floated from the belt conveyor (23), and the top of the machine base (20) is equipped with a three-head ultrasonic welder (26) with a welding time setting timer. The horn (27) of the sonic welder (26) is carried by the turntable (21) on the upper surface of the machine base (20) via the support part (28), and is temporarily stopped by the turntable (21). The blood collection bottle (6), which is supported just above (6) and can be moved up and down by a cylinder (not shown) and is stopped just below the horn (27), is processed by the horn (27). The gate (7) of the untreated blood collection bottle (6) disappears by installing a work holding member (29) on the machine base (20) via a cylinder (not shown) that holds it so that it does not move during the operation. Gate processing unit to eliminate (3
(0), and equipped with a three-headed pinhole checker (31) on the machine base (20) on the side of the moving road of the blood collection bottle (9) that has undergone gate extinction processing. 31) three high-voltage electrodes (3
2) on the upper surface of the machine base through the support (33), and turntable.
(21) It is supported in a state of being positioned directly above the three gated blood collection bottles (9) that have been temporarily stopped and correspond to the lower end surface of the gated blood collection bottles (9). The ground electrode (3) of the pinhole checker (31)
The state where the earth electrode (34) rises to a position close to the inner surface of the bottom wall of the gated blood collection bottle (9) located directly below the high-voltage electrode (32), and stops or returns downward. And the gate extinction-treated blood collection bottle (9) stopped immediately below the high-voltage electrode 32 and the work-pressing member (9) for holding the high-voltage electrode (32) and the ground electrode (34) so that they do not move while being processed. The pinhole check part (36) is constituted by providing 35), and the checked blood collection bottle (10) is further provided with the good product discharge part (37) and the defective product discharge part (37) '.

The first and second embodiments described above are
Numbers are assigned to the stop position of the conveyor (2) and the stop position of the turntable (21), and commands such as gate processing, pinhole detection, and non-defective / defective product discharge are issued based on these numbers. It has a numerical controller (not shown).

The first embodiment described above is such that when the gate-disappearing untreated blood collection bottle (6) on the work support portion (1) of the chain conveyor (2) comes to a position corresponding to the horn (4). Performs the extinction process of the gate (7), and when the gate extinction-treated blood collection bottle (9) comes to a position corresponding to the high voltage electrode (11),
When a high voltage is applied to (11) and the ground electrode (14) and a flashover occurs between both electrodes (11) and (14) due to this application, the gate extinction processed part of the blood collection bottle (9) where the gate extinction has been processed Make sure that the bottle (9) has a pinhole in (13) and that it is a defective product, and if it does not occur, confirm that it is a good product, and based on this confirmation, discharge the good product and the defective product separately. In the second embodiment, when the turntable (21) is rotated, the gate-disappearing untreated blood collection bottles (6) come to the positions corresponding to the three horns (27). 27) performs the process of extinguishing the gates (7) of the three gate extinction untreated blood collection bottles (6) at once, and the three gate extinction treated blood collection bottles (9) have three high voltage electrodes (32). These high voltage electrodes (32) when they come to the position corresponding to
Also, a high voltage is applied to the three ground electrodes (34), so that the presence or absence of pinholes in the three gate extinction-treated blood collection bottles (9) is detected all at once.

The present invention is carried out by means for processing two or more plastic molded products, and while the plastic molded product is transported by the transport device, for example, during the gate disappearance process to the pinhole detection process or the pin-hole detection process. Injecting chemicals (treatment agent), etc. into the molded product during the period from the hole detection process to the discharge or during the pinhole detection process (specifically, the ground electrode is modified into a chemical agent (treatment agent) injection pipe). It is possible to perform the processing step of.

[Work]

The present invention, as described above, is provided with a transfer device that is intermittently stopped on the machine base, a work support part provided in the transfer device, and a horn that moves forward and backward toward the gate of the work while the work is temporarily stopped. , The ultrasonic welder installed on the machine base in the state of performing the gate extinction process, and the state where the gate extinction processed part is sandwiched on both sides of the movement path of the gate extinct processed work on the transfer device and the movement of the work. It supports the high voltage electrode and the ground electrode in a state that does not hinder the work, and has a pinhole checker provided on the machine base, so when the work on the work support part of the transfer device corresponds to the horn. The horn can perform the gate extinction process, and can detect the occurrence of a flashover due to a high voltage when the gate extinction processed portion corresponds to the high electrode.

〔The invention's effect〕

The present invention, as described above, is provided with a transfer device that is intermittently stopped on the machine base, a work support portion provided on the transfer device, and a horn is moved toward and away from the gate of the work while the work is temporarily stopped. With the ultrasonic welder installed on the machine base in the state of eliminating the gate, the gate formed by molding can be removed efficiently, and moreover, the gate disappearing treatment on the transfer device is completed. It has a pinhole checker installed on the machine base that supports the high-voltage electrode and the ground electrode in a state where the gate disappeared portion is sandwiched on both sides of the work movement path and that does not hinder the movement of the work. It is possible to efficiently detect whether or not the gate is removed correctly, and it has an excellent effect of completely achieving the intended purpose.

[Brief description of drawings]

FIG. 1 is a plan view of an essential part showing a first embodiment of the present invention, and FIG.
FIG. 3 is a side view, FIG. 3 is a plan view of an essential portion showing a second embodiment of the present invention, FIG. 4 is a sectional view showing a gate processing portion, and FIG. 5 is a sectional view showing a pinhole check portion. is there. (1) …… Work support part, (2) …… Chain conveyor,
(4) …… Horn, (5) …… Supporting part, (6) …… Undissolved uncollected blood collection bottle, (7) …… Gate, (8) …… Guide, (9) ……
Gate extinction treated blood collection bottle, (10) …… Checked blood collection bottle, (11) …… High voltage electrode, (12) …… Supporting part, (13) …… Processed part, (14) …… Ground electrode, (15) …… Bad blood collection bottle, (16) …… Air jet nozzle, (20) …… Machine stand, (21)
...... Turntable, (22) …… Vertical groove, (23) …… Belt ・
Conveyor, (24) (24) ′ …… Guide, (26) …… Ultrasonic welder, (27) …… Horn, (28) …… Supporting part, (29) …… Work holding member, (30)… … Gate processing part, (31) …… pinhole checker, (32) …… high voltage electrode, (33) …… supporting part,
(34) …… Ground electrode, (35) …… Work holding member, (36)…
… Pinhole check part, (37) (37) ′ …… Ejection part, (38)
…… Projection prevention wall, (39) …… Pressed body.

Claims (1)

[Claims] 1. A transfer device provided on a machine base for intermittent temporary stop, a work support part and a horn provided on the transfer device are moved toward and away from the gate of the work while the work is temporarily stopped, The ultrasonic welder installed on the machine base in the state of performing gate elimination processing, and the state where the gate elimination processing is carried on both sides of the movement path of the workpiece with the gate elimination processing on the transfer device and the movement of the workpiece are obstructed. A gate processing device for a plastic molded product, which supports a high-voltage electrode and a ground electrode in a non-operating state and has a pinhole checker provided on a machine base.