JP6256640B1 - Blow bottle removal device - Google Patents

Abstract

In addition to a mechanism for gripping a molded product, in a blow bottle take-out device to which a mechanism for inserting a label to be attached to a molded product is added in a blow mold that has been opened, the facility can be simplified. , Reduce the operation time after mold opening. A blow bottle take-out device (1) includes a gripping hand (10) that grips a part of a blow bottle protruding from a blow mold (2), a support arm (20) that supports the gripping hand (10), and a support arm (20) that supports the blow mold (2). The gripping hand 10 is a mold of the blow mold 2, and includes a moving mechanism 30 that moves toward and away from the support mold 20 and a label holding unit 40 that is supported by the support arm 20 and holds a label to be inserted into the blow mold 2. A part of the blow bottle is gripped before opening, and after the blow mold 2 is opened, the support arm 20 moves with the gripping hand 10 gripping the blow bottle, and the label holding part 40 is moved to the blow mold 2. The label held by the label holding unit 40 is inserted into the blow mold 2. [Selection] Figure 1

Description

  The present invention relates to a take-out device for taking out a blow bottle from a blow mold.

  As a blow molding for forming a hollow container or the like, a molding method in which a hollow pipe-shaped thermoplastic melt discharge (hereinafter referred to as a parison) discharged from a die head is sandwiched between blow molds and blown air is blown into the parison in the mold ( Direct blow molding method) is known.

  In blow molding, after a parison is sandwiched between blow molds, a blow nozzle (or blow pin) is inserted into the parison in the mold, and after blow, the mold is opened with the molding held in the blow nozzle, Thereafter, an operation is performed in which the robot hand of the take-out device grips the molded product and pulls the molded product away from the blow nozzle.

  A take-out apparatus that performs such an operation is known in which a mechanism for inserting a label to be attached to a molded product is added to a blow mold that has been opened in addition to a mechanism that grips the molded product. In the prior art described in Patent Document 1 below, a pair of grip plates (grip hands) for gripping a molded product is provided, and a molded product grip portion is provided on the inner surface facing the grip plate, and the grip plate has an outer surface. A suction pad for sucking the label is provided.

Japanese Unexamined Patent Publication No. Sho 63-133201

  In the above-described prior art, the molded product can be gripped and the label can be inserted by an actuator that operates the gripping plate. Therefore, the number of actuators can be reduced compared to a device that includes a device for inserting a label separately from the take-out device. It is possible to simplify the equipment.

  However, in the above-described prior art, the molded product cannot be gripped unless the blow mold is opened after blow, and the molded product is gripped after the label insertion operation. Since a separate operation time is required for each of the insertion operation and the gripping operation of the molded product, the operation time required after the mold opening becomes long, and there is a problem that good productivity cannot be obtained.

  The present invention has been proposed to address such problems. That is, the present invention enables simplification of equipment in a blow bottle take-out device in which, in addition to a mechanism for gripping a molded product, a mechanism for inserting a label to be attached to the molded product in a blow mold that has been opened is added. And reducing the operation time after mold opening.

  In order to solve such a problem, the blow bottle removing device of the present invention has the following configuration.

  A gripping hand for gripping a part of the blow bottle protruding from the blow mold, a support arm for supporting the gripping hand, a moving mechanism for moving the support arm toward and away from the blow mold, and the support arm And a label holding unit for holding a label to be inserted into the blow mold, and the gripping hand grips a part of the blow bottle before opening the blow mold, and after opening the blow mold The support arm moves with the gripping hand gripping the blow bottle, the label holding part is moved between the blow molds, and the label held by the label holding part is inserted into the blow mold. The blow bottle taking-out apparatus characterized by the above.

  According to the blow bottle removing device having such a feature, the label holding unit can be held without holding the blow bottle after opening the mold by holding the blow bottle with the holding hand before opening the blow mold. The label can be inserted by moving between the blow molds. Further, the movement of the gripping hand and the movement of the label holding unit can be performed by a single moving mechanism.

  As a result, in the blow bottle take-out device that holds the molded product and inserts a label to be attached to the molded product into the blow-opened mold, the equipment can be simplified and the operation time after the mold is opened. By shortening, the productivity of the bottle can be increased.

It is explanatory drawing which showed the structural example of the blow bottle taking-out apparatus which concerns on embodiment of this invention. It is explanatory drawing which showed bottle taking-out operation | movement (bottle grasping). It is explanatory drawing which showed bottle taking-out operation (mold opening). It is explanatory drawing which showed label insertion operation | movement. It is explanatory drawing which showed bottle extraction operation | movement (extraction completion). It is explanatory drawing which showed the operation | movement time chart of a blow bottle taking-out apparatus.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, the same reference numerals in different drawings indicate parts having the same function, and repeated description in each drawing will be omitted as appropriate.

  As shown in FIG. 1, a blow bottle take-out device (hereinafter, take-out device) 1 is a device for taking out a bottle W, which is a molded product formed by a blow mold 2, from a blow mold 2 after molding, 10, a support arm 20, a moving mechanism 30, and a label holding unit 40.

  The gripping hand 10 is driven by the actuator 10 </ b> A to grip a part of the bottle W (gripping part W <b> 1) protruding from the blow mold 2. The bottle W blow-molded by the blow mold 2 is such that a part of the parison sandwiched between the blow molds 2 protrudes to the outside (upper side) of the blow mold 2, so that the gripping portion W <b> 1 is outside the blow mold 2. Is formed. The gripping hand 10 can grip the bottle W before the blow mold 2 is opened by gripping the gripping portion W1.

  The support arm 20 supports the gripping hand 10 and supports the label holding unit 40. The support arm 20 moves linearly by the moving mechanism 30, and approaches and separates from the blow mold 2. The moving mechanism 30 includes a slide guide 31 that extends linearly and an actuator 32 that moves the support arm 20 along the slide guide 31.

  The label holding unit 40 supported by the support arm 20 sucks and holds one label L1a and L1b from the label bundle La and Lb, respectively, in order to insert a label to be attached to the bottle W into the blow mold 2. The suction pad 41 and the telescopic cylinder 42 are provided.

  The operation of the take-out device 1 will be described with reference to FIGS. The moving mechanism 30 in the take-out device 1 moves the support arm 20 from the first position (home position) shown in FIG. 1 to the second position (gripping position) shown in FIG. 2, and further shown in FIG. After moving to the third position (label insertion position), it moves again to the first position (home position) as shown in FIG.

  As shown in FIG. 1, in the first position of the support arm 20 in the moving mechanism 30, the label holding unit 40 faces the label bundles La and Lb, and the individual labels L1a and L1b from the label bundles La and Lb. Hold. The label holding unit 40 includes the suction pad 41 and the expansion cylinder 42 as described above, and the suction pad 41 abuts against the label bundles La and Lb at the position where the expansion cylinder 42 extends, where one label L1a, L1b is sucked and held, and the telescopic cylinder 42 is contracted.

  The state shown in FIG. 1 is a state where a blow pin (not shown) is inserted in a parison sandwiched between blow molds 2 and blow molding is being performed (during blowing), or a state after blow molding.

  Thereafter, as shown in FIG. 2, before the blow mold 2 is opened, the moving mechanism 30 moves the support arm 20 to the second position, and the gripping hand 10 holds the gripping portion of the bottle W at this position. Grip W1. At this time, the label holding unit 40 supported by the support arm 20 moves to the vicinity of the blow mold 2 while holding the labels L1a and L1b as the support arm 20 moves.

  Thereafter, as shown in FIG. 3, the blow mold 2 is opened while the support arm 20 is held at the second position. At this time, the bottle W is separated from the left and right molds 2 </ b> A and 2 </ b> B by being held by the holding hand 10. Labels L1a and L1b inserted in the blow mold 2 in the previous cycle are attached to the bottle W separated from the mold.

  Thereafter, as shown in FIG. 4, the support arm 20 is moved to the third position, so that the label holding portion 40 supported by the support arm 20 is positioned between the left and right molds 2A and 2B. At this position, the label holding unit 40 extends the retracted expansion / contraction cylinder 42 and inserts the labels L1a and L1b sucked and held by the suction pad 41 into the molds 2A and 2B, respectively. In the illustrated example, the label holding unit 40 shows an example in which the labels L1a and L1b are inserted into both the left and right molds 2A and 2B, respectively. It may be a thing. When the support arm 20 moves to the third position, the gripping hand 10 maintains a state where the bottle W is gripped.

  After that, as shown in FIG. 5, the support arm 20 is returned to the first position. At this position, the gripping hand 10 is released from the gripping state shown in the figure, and at the same time, the bottle W is transferred and discharged onto the transport conveyor by a transfer hand (not shown). The label holding unit 40 is in a state of facing the label bundles La and Lb, and is in a standby state for holding the label in the next cycle.

  FIG. 6 shows a time chart of the above-described operation. In this operation example, the label holding unit 40 starts the operation of attracting the labels L1a and L1b from the label bundles La and Lb at timing T1, and the support arm 20 is moved from the first position (home position) to the second at timing T2. It moves to the position (gripping position), the gripping operation of the gripping hand 10 is started, the opening operation of the blow mold 2 starts at timing T3, and the opening operation of the blow mold 2 is completed at timing T4. Then, the support arm 20 starts to move from the second position (gripping position) to the third position (sticking position), and at time T5, the support arm 20 reaches the third position (sticking position) and holds the label. The sticking operation of the unit 40 is started, and the support arm 20 is returned to the first position (home position) at timing T6.

  In such an operation, by opening the timing T2 when the gripping hand 10 of the take-out device 1 grips the bottle W before the mold opening start timing T3, the mold opening is performed while the bottle is supported by the blow pin as in the conventional case. It is possible to shorten the operation time after mold opening as compared with the case where the bottle is held after that. Moreover, since the label holding part 40 can be brought close to the blow mold 2 by moving the support arm 20 from the first position to the second position, the holding position of the label bundles La and Lb is set to the blow mold 2. Even when set at a position away from the label, it is possible to perform the labeling operation efficiently.

  The operation of moving the support arm 20 to the third position (sticking position) is an extension of the operation of moving the support arm 20 to the second position (gripping position). Ten moving operations and a moving operation of the label holding unit 40 can be performed. For this reason, a moving mechanism for individually moving the label holding unit can be omitted, and the installation space efficiency of the facility can be increased.

  As described above, the embodiments of the present invention have been described in detail with reference to the drawings. However, the specific configuration is not limited to these embodiments, and the design can be changed without departing from the scope of the present invention. Is included in the present invention. In addition, the above-described embodiments can be combined by utilizing each other's technology as long as there is no particular contradiction or problem in the purpose and configuration.

1: blow bottle take-out device, 2: blow mold
10: gripping hand, 20: support arm,
30: moving mechanism, 40: label holding unit,
10A, 32: Actuator, 31: Slide guide, 41: Suction pad,
42: telescopic cylinder, W: bottle, W1: gripping part,
La, Lb: Label bundle, L1a, L1b: Label

Claims (2)

A gripping hand for gripping a part of the blow bottle protruding from the blow mold;
A support arm for supporting the gripping hand;
A moving mechanism for moving the support arm toward and away from the blow mold;
A label holding unit that is supported by the support arm and holds a label to be inserted into the blow mold,
The gripping hand grips the part of the blow bottle before opening the blow mold,
After opening the blow mold, the support arm moves with the gripping hand gripping the blow bottle, the label holding part is moved between the blow molds, and the label held by the label holding part is removed. A blow bottle take-out apparatus, which is inserted into a blow mold.   The moving mechanism includes: a first position where the label holding unit holds individual labels from a label bundle; a second position where the gripping hand grips the part of the blow bottle; 2. The blow bottle removing device according to claim 1, wherein the label holding portion is moved to a third position located between the blow molds opened, and then the support arm is returned to the first position.

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