JP4780760B2 - Label charging method in in-mold labeling - Google Patents

Description

  The present invention relates to label insert molding in which a synthetic resin is integrally formed on a label printed with various designs such as desired characters and pictures mounted in a mold, and the label is charged to a required charge and statically fixed to the mold. The present invention relates to a label charging method in in-mold label forming that enables electroadsorption.

  In in-mold label molding that molds molded products such as cups and containers made of synthetic resin with a label printed with various designs such as desired characters and pictures on the surface, the outer shape matches the molded product. In order to prevent the label wound around the pseudo core having a large number of suction holes on the outer surface from being displaced in the mold, it is charged so that the label is electrostatically attracted to the mold. I am letting.

  As a method for charging a label, for example, as shown in Patent Document 1, when moving a pseudo core around which a label is wound to a mold side, the pseudo core is moved between electrodes where an electric field of a required voltage is generated. Stop for a required time to charge the label to the required charge.

However, in the above-described label charging method, it is necessary to stop for a required time in the charging area, and as a result, it takes time from receiving the label to mounting in the mold. The time and the molding time are inconsistent, which causes the molding efficiency to deteriorate. In particular, in the case of a molded product such as a small-capacity cup in which the label is integrally formed on the outer peripheral surface, the molding speed and the mounting speed of the label on the mold do not match because the time required for molding is short, The molding efficiency was extremely poor.
Utility Model Registration No. 3030510

  The problem to be solved is that in-mold label molding, in which molten resin is injected and molded while the label is electrostatically adsorbed to the mold, the label is required before the label is installed in the mold. It takes time to charge the electric charge, and the molding speed and the label mounting speed are not matched, and the molding efficiency is remarkably deteriorated.

Claim 1 is a label insert molding in which a label adsorbed in a wound state on an outer peripheral surface of a pseudo core is mounted in a mold, and then a synthetic resin is injected to form a molded product in which the label is integrated on the surface. The inner surface has a hollow portion that substantially matches the outer shape of the pseudo core and has an insertion opening on the side, and each insertion opening is located outside and is adjacent to each other at intervals that match the cavity spacing of the mold. The adsorbed and held label is entered into the hollow part while elastically deforming from the insertion opening to the at least two pseudo molds arranged and held in a state along the inner surface of the hollow part to hold the label on the pseudo core. After being deformed into a shape that can be held on the outer peripheral surface, the pseudo core enters the hollow portion of the pseudo mold, and the label held on the inner surface of the hollow portion of the pseudo mold is adsorbed and held on the outer peripheral surface of the pseudo core. Label from pseudo mold After it was passed to the similar core, in the course of moving the pseudo-core label on the outer circumferential surface is held to the mold, passed through the required high voltage in an electric field an electric field is shielded in a pseudo core Pseudo mold side The label is charged to a required charge so that it can be electrostatically attracted to the mold.
Further, the second aspect of the present invention provides a label insert for forming a molded product in which a label is attached to the outer peripheral surface of the pseudo core in a wound state and then injected with a synthetic resin and the label is integrated on the surface. In molding, a label in which at least the central part in the longitudinal direction is adsorbed and held, with respect to a pseudo mold having a hollow part whose inner surface substantially matches the outer shape of the pseudo core and an opening partly communicating with the hollow part, After being inserted while being elastically deformed through the opening and being elastically deformed along the inner surface of the hollow portion, the label is deformed into a shape that can be held in the pseudo core by holding in the pseudo mold, After the pseudo core enters the hollow part of the pseudo mold and the label held on the inner surface of the hollow part of the pseudo mold is adsorbed and held on the outer peripheral surface , and the label is transferred from the pseudo mold to the pseudo core. , Pseudo-labels held on the outer surface In the middle of moving the mold to the mold, the pseudo core is passed through a required high voltage electric field where the electric field toward the pseudo mold is shielded, and the label is charged to the required charge to be statically fixed to the mold. It is characterized by enabling electroadsorption.

  According to the present invention, the label wound around the movement of the pseudo core is charged to a required charge, so that the time for mounting the label on the mold is shortened, the consistency with the molding time is achieved, and the molding operation is made efficient. be able to.

  In the present invention, a required high voltage is applied in the middle of moving a pseudo core having a label wound around an outer peripheral surface thereof to a mold, and it passes between a pair of electrode members having a required length in the moving direction. Thus, the best mode is to charge the label to a required charge.

The present invention will be described below with reference to the drawings showing examples.
1 to 4, a label supply device 1 that embodies the method of the present invention includes a label delivery device 3, a label transport device 5, and a mold 21 of a resin molding machine during delivery of a label (only the mold is shown). And a charging device 7 for charging the label 9 to a required charge during the conveyance of the resin molding machine.

The label delivery device 3 is a device that delivers, for example, two labels 9 simultaneously to the two pseudo cores 11 in the label transport device 5. A movable body 15 is supported on the main body frame 13 of the label delivery device 3 so as to be movable in the axial direction of the pseudo mold 17. The movable body 15 is reciprocated with the operation of an operation member 19 such as an air cylinder fixed to the main body frame 13.

  On the movable body 15, two pseudo molds 17 are fixed symmetrically so that their axes coincide with each other and coincide with each other of the plurality of cavities 21a formed on the mold 21 of the resin molding machine. The Each pseudo mold 17 has a frustoconical, cylindrical or rectangular tube-shaped hollow portion 17a, and an opening 17b in which the label 9 is inserted into the hollow portion 17a at the upper corner of the side. Is formed. A large number of suction holes (not shown) connected to a negative pressure (vacuum) generator (not shown) are provided on the inner surface of each hollow part 17a and introduced into the hollow part 17a by the negative pressure from the suction holes. The labeled label 9 is sucked and held so as to adhere and adhere to the entire inner surface uniformly.

A ruler plate 23 is attached to the rear side of the movable body 15 (on the side opposite to the pseudo core 11) so as to come into contact with the rear end of the label 9 held in the hollow portion 17a of the pseudo mold 17. .

  A label stock portion 25 is provided on each main body frame 13 located above each pseudo mold 17. That is, the body frame 13 is formed with openings 13a each having a front and rear width slightly larger than the width in the direction perpendicular to the longitudinal direction of the label 9 and a left and right width illustrated and shorter than the width in the longitudinal direction. Is done. A plurality of guide members 25a are erected on the side edges of the openings 13a, and a large number of labels 9 are stacked on the upper surface of the main body frame 13 between the guide members 25a. Among the accumulated labels 9, the label 9 positioned at the lowermost layer can be taken out through the opening 13a.

  The body frame 13 located above each pseudo mold 17 has a length of one arm extending to the horizontal intermediate portion of the opening 13a, and a swing arm 27 whose other arm is raised upward is swingable. Each is supported. A swinging member 29 such as an air cylinder fixed to the main body frame 13 is connected to each other arm portion. In addition, an adsorbing member 31 having a suction cup that adsorbs the lower surface of the label 9 located in the lowermost layer accumulated in the label stock portion 25 and takes out from the label stock portion 25 at the leading end of each arm portion is the length of the label 9. They are mounted so as to move in directions toward and away from each other at a required interval with respect to the direction. Each adsorbing member 31 adsorbs and picks up the label 9 located in the lowermost layer accumulated in the label stock portion 25. Each suction member 31 is positioned so as to suck the lower surface of the label 9 located in the lowermost layer accumulated in each label stock portion 25 in accordance with the operation of the corresponding swing member 29 and the opening 17b of each pseudo mold 17. Swings between the sides.

  A horizontal operation member 33 such as an air cylinder is attached to the main body frame 13 between the pseudo molds 17. A mounting plate 35 having both ends extending to the outside of the respective pseudo molds 17 is fixed to the operation shaft of each horizontal operation member 33. Then, pushing operation members 37 such as air cylinders are provided at both ends of the mounting plate 35 in a state where the axis thereof is inclined so as to coincide with the straight line assumed to connect the center of the pseudo mold 17 and the opening 17b. Mounted. Each push-in actuating member 37 extends in the axial direction of each pseudo mold 17 at the tip end of the actuation shaft, can enter into the opening 17b of the corresponding pseudo mold 17, and has a suction cup 39a on the relative surface of the label 9. The pushed arm 39 is fixed.

A label transport device 5 is arranged on the front side of each pseudo mold 17. The travel frame 41 of the label conveying device 5 extends in a direction perpendicular to the axis of the pseudo mold 17 and reaches a side of the mold 21 in the resin molding machine. A traveling body 43 is supported on the traveling frame 41 so as to reciprocate, and the traveling body 43 is connected to an electric motor (not shown) such as a servo motor capable of numerical control, and has a feed screw (not shown) that rotates. By means of a conventionally known reciprocating drive mechanism (not shown) such as a meshed feed screw drive mechanism, a belt drive mechanism in which a part of a timing belt (not shown) traveling connected to an electric motor is fixed to the traveling body 41, etc. It is reciprocated.

  A mounting frame 45 is supported on the traveling body 43 so as to be able to reciprocate with a required stroke in the axial direction of the pseudo mold 17. The attachment frame 45 is reciprocated in the axial direction of the pseudo mold 17 by a forward / reverse operation member 47 such as an air cylinder fixed to the traveling body 41. The mounting frame 45 has a horizontal length that positions each pseudo core 11 to be described later on the front surface of the opposite cavity 21a when the traveling body 43 moves to the mold 21 side of the traveling frame 41.

  Two pseudo cores 11 are attached to the attachment frame 45 so as to face each of the pseudo molds 17. Each pseudo core 11 has a shape that can be inserted into the hollow portion 17a of the opposing pseudo mold 17, and a plurality of suction holes 11a connected to a negative pressure (vacuum) generator are formed on the outer surface thereof. Each pseudo core 11 reciprocates between an insertion position where the pseudo core 11 is inserted into the hollow portion 17a of the pseudo mold 17 and a separation position where the pseudo core 11 is pulled out from the hollow portion 17a. Is done.

  A charging device 7 is disposed between the label delivery device 3 and the label transport device 5. The shield plate 49 of the charging device 7 has an opening 49a that allows the pseudo core 11 to enter the pseudo mold 17 moved to the label conveying device 5 side, and is a grounded metal plate. It is formed in a planar shape along the moving direction. On the upper and lower sides of the opening 49a of the shield plate 49 facing the pseudo core 11, a pair of upper and lower electrode bars 51a and 51b extending in an appropriate length in the moving direction of the pseudo core 11 is provided with an electrical insulator 49b such as an insulator. It is installed. Between the electrode bars 51a and 51b, when the label 9 held in a state of being wound around the pseudo core 11 passes between the two, an electric field is generated that charges the label 9 to a required charge.

Of the electrode bars 51a and 51b, at least the electrode bar 51b positioned below avoids the pseudo core 11 from interfering with the pseudo core 11 or the pseudo mold 17 when receiving the label 9 from the pseudo mold 17. Therefore, it is configured to move up and down between a charging position and a retracted position by a lifting member (not shown) such as an air cylinder.

Next, a method for charging the label 9 will be described.
First, a method of delivering the label 9 to the pseudo core 11 by the label delivery device 3 will be described. Each pseudo mold 17 is accumulated in each label stock unit 25 in a state where it is moved away from the opposing pseudo core 11. The lower surface of the lowermost label 9 is adsorbed and held by the adsorbing members 31 swinging to the lower surface side of the lowermost label 9 that has been formed. At this time, the two suction cups that adsorb the lower surface of each label 9 are moved in a direction approaching each other, and a part of the adsorbed label 9 is bent and picked out from the opening 13a. In this state, the swinging member 29 is operated to swing the swinging arm 27 toward the opening 17b of each pseudo mold 17, and a part of the label 9 sucked by the suction member 31 as shown in FIG. Are removed from the opening 13a and moved to the side of the opening 17b, which is the side of the corresponding pseudo mold 17, respectively. During the swinging of the suction member 31, the suction cups that have sucked the label 9 are moved away from each other to make the label 9 flat.

Next, as shown in FIG. 6, the horizontal actuating member 33 is actuated, and each pushing arm 39 that has moved to the non-interference position with respect to the moving label 9 is moved to the corresponding pseudo mold 17 side to move the label 9. Between the suction cups adsorbed to the label 9 surface opposite to the suction side. At this time, a part of the label 9 adsorbed and held by each adsorbing member 31 is adsorbed to the suction cup 39 a of each pushing arm 39.

Next, as shown in FIG. 7, the pushing operation member 37 is operated at a timing substantially synchronized with the suction release of the label 9 by each suction member 31, and the pushing arm 39 is moved from the opening 17b into the hollow portion 17a of the pseudo mold 17. The label 9 adsorbed and held by the suction cup 39a is pushed into the hollow portion 17a while being elastically deformed. The label 9 pushed into the hollow portion 17a is elastically restored in the hollow portion 17a and is adsorbed over the entire inner surface of the hollow portion 17a by the negative pressure acting through the suction hole. Retained. Further, in synchronization with the operation of the pushing operation member 37, the swinging member 29 is moved back to move the suction member 31 to the lower surface side of the label 9 which is accumulated in the label stock portion 25 and then positioned at the lowermost layer. Let

  After the above operation, as shown in FIG. 8, the pushing operation member 37 is moved back to move the pushing arm 39 released from the adsorption of the label 9 out of the pseudo mold 17, and then the horizontal operation member 33 is moved back. The pushing arm 39 is returned to the original position separated from the pseudo mold 17.

  After the above operation, the operating member 19 is operated to move each pseudo mold 17 having the label 9 adsorbed on the inner peripheral surface of each hollow portion 17a toward the opposing pseudo core 11. Next, as shown in FIG. 9, the forward / backward moving operation member 47 is operated to move each pseudo core 11 so as to pass through the opening 49 a of the shield plate 49 toward the corresponding pseudo mold 17. The pseudo mold 17 is inserted into the hollow portion 17a. In this state, the suction of the label 9 by the suction hole is released, and the label 9 is sucked and held so as to be wound around the entire outer surface of the pseudo core 11 by the negative pressure acting through the suction hole 11a of the pseudo core 11.

Then, the label 9 is moved from the pseudo mold 17 to the pseudo core 11 by returning the pseudo core 11 sucked and held in a state where the label 9 is wound over the entire outer surface by moving the back and forth operation member 47 backward. Deliver.

  Then, the electric motor is driven and the label 9 is adsorbed in a wound state on the entire outer surface, and the pseudo cores 11 are moved to the mold 21 side to be opposed to the cavities 21a. At that time, as shown in FIG. 10, the timing at which the back-and-forth operation member 47 is moved back to return the pseudo core 11 to the original position, or the electric motor is driven to start moving each pseudo core 11 to the mold 21 side. When a high voltage is applied to the electrode bars 51a and 51b at the timing, the electric field acts on the label 9 held by suction when the pseudo core 11 passes through the electric field between the electrode bars 51a and 51b, and the required charge is obtained. Charge.

Then, when the pseudo core 11 is moved to the mold 21 side, as shown in FIG. 11, the forward / backward moving operation member 47 is operated to place each pseudo core 11 in the cavity 21a, and then FIG. 12 (FIG. 12). Indicates a state in which the pseudo core is returned.) As shown in FIG. 2, the suction by the suction holes 11a is released and the labels 9 are mounted in the respective cavities 21a. At this time, since the label 9 itself is charged to a required charge, the label 9 is attracted to the inner surface of the cavity 21a by electrostatic attraction force.

As a result, the label 9 is attracted to the inner surface of the cavity 21a by its electrostatic attraction force to maintain the holding state, and when the mold 21 is clamped or when the molten synthetic resin is injected into the mold 21 Further, it is possible to prevent the label 9 from being displaced in the mold 21 and to form a molded product integrated with the label 9 positioned on the surface with high accuracy.

After the label 9 is attached to the cavity 21a, the forward / reverse operation member 47 is moved backward to cause each pseudo core 11 to come out of the cavity 21a of the mold 21, and then the electric motor is moved backward. Then, the pseudo core 11 is returned to the original position, and the attachment of the label 9 to the mold 21 is completed.

  In this embodiment, when the pseudo core 11 held in a state where the label 9 is wound around the outer peripheral surface starts to move to the mold 21 side, or during the movement, the pseudo core 11 is placed between the electrode bars 51a and 51b. By passing, the label 9 held on the pseudo core 1 can be charged to a required charge. For this reason, it is not necessary to stop the pseudo core 11 in the charging area in the middle of movement as in the prior art, and the supply time of the label 9 to the mold 21 is shortened to reduce the time required for supplying the label 9 and the time required for molding. It is possible to make the molding work more efficient by achieving consistency.

  In the above description, the two pseudo molds 17 are disposed on the movable body 15 in the adjacent state and the label 9 is wound around the two pseudo cores 11. In the case of a mold having a size larger than that of the mold, as shown in FIG. 13 (FIG. 13 shows an example of a two-stage configuration), the label delivery devices 3 of this embodiment are provided in a multistage shape in a non-interfering state, and at least 4 You may make it deliver the label of a sheet simultaneously.

  Another embodiment relating to the label delivery method to the pseudo core will be described. Note that the method for charging the label attracted and held by the pseudo core is the same as that of the first embodiment, and thus detailed description thereof will be omitted. .

14 to 15, a slider 107 is supported on the traveling frame 105 attached to the main body 103 of the label delivery apparatus 101 so as to reciprocate. The traveling frame 105 is moved between a label removal position on one end side of the traveling frame 105 and a label delivery position for delivering a label 111 to a pseudo mold 109 (to be described later) on the other end side by a reciprocating drive device (not shown). Is reciprocated.

  A base end portion of the attachment plate 115 is fixed to the lifting drive member 113 attached to the slider 107. The mounting plate 115 is configured by three arms 117a, 117b, and 117c extending in a direction perpendicular to the longitudinal direction of the traveling frame 105 (hereinafter, this direction is referred to as a front-rear direction) with a predetermined gap described later. A pair of front and rear adsorption members 119, 119b, and 119c are attached to the lower surfaces of the arms 117a, 117b, and 117c. The suction members 119b and 119c on both sides are set so that their suction surfaces are located slightly above the center suction member 119a.

Further, the suction member 119a at the center is slidably supported by the arm 117a and attached to the lower portion of the shaft 123 urged downward by the elastic member 121 such as a compression spring. Further, a negative pressure (vacuum) generator (not shown) is connected to the central suction member 119a and the suction members 119b and 119c on both sides via valves (not shown) that are separately controlled to open and close. Suction control is performed separately at a timing.

  A support member 125 extending in the front-rear direction is attached to the main body 103 on the label delivery position side, and a movable body 127 is attached to the support member 125 by a reciprocating device (not shown) connected in the front-rear direction. It is supported so as to reciprocate between a position and a delivery position to a pseudo core 129 described later.

  A pseudo mold 109 is attached to the movable body 127. The pseudo mold 109 has a width in the front-rear direction that is slightly shorter than the front-rear width of the adsorbing members 119a, 119b, and 119c, and has a hollow conical, cylindrical, or rectangular tube-shaped inner surface having an axial line in the front-rear direction. A portion 109a is formed. In addition, an opening 109b having a predetermined width is formed in the upper portion of the pseudo mold 109 so as to communicate with the inside at the position of the central arm 117a.

A large number of suction holes 109c connected to a negative pressure (vacuum) generator are formed on the inner surface of the hollow portion 109a of the pseudo mold 109, and the label 111 inserted into the hollow portion 109a is sucked into the inner surface by negative pressure. Let

  The pseudo core 129 is controlled to move with respect to the label delivery position. The pseudo core 129 is attached to a chuck plate 133 to which a chuck member 131 for holding a molded product (not shown) is attached, for example, in a molded product take-out machine (none shown) mounted on a resin molding machine. That is, a chuck member 131 such as a suction member for holding a molded product is attached to one surface of the chuck plate 133 and the pseudo core 129 described above is attached to the other surface, and the chuck plate 133 is 180 degrees horizontally. The chuck member 131 and the pseudo core 129 are selectively opposed to the mold 135 by selectively controlling the rotation.

  The pseudo core 129 has an outer shape that substantially coincides with a molded product in which the label 111 is integrally formed on the surface, and a plurality of suction holes 129a connected to a negative pressure (vacuum) generator are formed on the outer surface. Adsorbed and held in a state where the label 111 is wound around. The pseudo core 129 is connected to a pressure generating device (not shown) as necessary, and the suction state is released when the pseudo core 129 mounts the label 111 in the cavity 135a of the mold 135. The label 111 may be pressed and attached to the inner surface of the cavity 135a by jetting compressed air from the suction hole 129a at substantially the same timing as the above.

  Incidentally, the delivery position for delivering the label 111 from the pseudo mold 109 to the pseudo core 129 to the pseudo core 129 has an opening 49a that allows the chuck plate 133 to move as in the first embodiment, and the upper and lower edges thereof are vertically A shield plate 49 to which a pair of electrode bars 51a and 51b are attached is disposed.

  When the reciprocating drive device is driven and the slider 107 is moved to the label take-out position, the elevating drive member 113 is driven to bring the suction members 119a, 119b and 119c into contact with the upper surface of the label 111 of the uppermost layer of the label group 137. Alternatively, the labels 111 are attracted and held by the adsorbing members 119a, 119b, and 119c. (See Figure 16)

At this time, the suction member 119a at the center is set so that its suction surface is positioned below the suction surfaces of the suction members 119b and 119c on both sides. For this reason, when the suction member 119a comes into contact with the upper surface of the label 111, it moves upward against the elastic force of the elastic member 121 and becomes substantially flush with the suction surfaces of the other suction members 119b and 119c. In this state, the label 111 is sucked and held.

  Next, the elevating drive member 113 is moved back to move the adsorbing members 119a, 119b and 119c adsorbing the label 111, and then the reciprocating drive device is moved back to return the slider 107 to the label supply position. When the uppermost label 111 is lifted from the label group 137, the adsorption member 119a that adsorbs the central portion of the label 111 moves downward by the elastic force of the elastic member 121 and lifts both sides ahead of the central portion. The uppermost label 111 is reliably separated from the label group 137 located in the lower layer. (See Figure 17)

  Next, the lifting drive member 113 is driven to move the mounting plate 115 downward, and at the same time the suction by the suction members 119b and 119c on both sides is released while the suction state of the label 111 by the suction member 119a at the center is maintained. Then, the label 111 sucked and held by the suction member 119a at the center is pushed into the hollow portion 109a of the pseudo mold 109 through the opening 109b. At this time, since the adsorbed state on both sides of the label 111 is released and is in a free state, both sides of the label 111 are bent upward with the air resistance when lowered so that the label 111 is smoothly pushed into the opening 109b. Make it. (See Figure 18)

  When the label 111 is pushed into the hollow portion 109a while being elastically deformed, the label 111 is adsorbed to the inner surface side of the hollow portion 109a while being elastically restored in the hollow portion 109a. It is held in close contact. (See Figure 19)

  After releasing the suction of the central portion of the label 111 by the suction member 119a in the above state, the lifting drive member 113 is moved back to return the mounting plate 115 upward, and the mounting of the label 111 on the pseudo mold 109 is finished.

  Next, the chuck plate 133 is moved and controlled so that the pseudo core 129 enters the hollow portion 109a of the pseudo mold 109 held with the label 111 in close contact with the inner surface, and then the label 111 is formed by the suction hole 109c. At the same time that the suction is released, the label 111 is sucked so as to be wound around the entire outer surface of the pseudo core 129 by the suction force acting through the suction hole 129a, and the label 111 in the pseudo mold 109 is formed into the inner shape of the hollow portion 109a. Correspondingly, it is delivered to the pseudo core 129 while being elastically deformed. (See Figure 20)

  Next, movement of the chuck plate 133 is controlled to pass between the pair of upper and lower electrode bars 51a and 51b through the pseudo core 129 sucked and held with the label 111 wound around the outer peripheral surface. The label 111 is charged to a required charge by the electric field. (See Figure 21)

Then, after moving the chuck plate 133 to move the pseudo core 129 sucked and held in a state where the label 111 is wound around the outer peripheral surface into the cavity 135a of the mold 135, the suction is released. The label 111 is mounted in the mold 135. At this time, since the label 111 itself is charged to a required charge, the label 111 is attracted to the inner surface of the cavity 135a by an electrostatic attraction force. (See Figure 22)

  In the first and second embodiments, a pseudo mold is used, and a label is inserted into the hollow portion so as to pre-form the wound state of the pseudo core. Alternatively, the label may be wound around the outer peripheral surface in a state where the pseudo core is close to the center of the upper surface of the label located in the uppermost layer of the label group.

Further, in the above example, the pseudo core is provided so as to be driven at least once, and the other end portion of the pseudo core is sucked with the label in the state where the upper surface end portion of the label located in the uppermost layer of the label group is in proximity. It may be a method of rotating in a direction toward the outer periphery and winding it around the outer peripheral surface.

1 is a schematic overall perspective view showing an example of an apparatus embodying a method of the present invention. It is a side view from the arrow B direction except a pseudo core part in FIG. It is a side view from the arrow C direction except the pseudo core part in FIG. It is a side view from the arrow D direction except the pseudo core part in FIG. It is explanatory drawing which shows the state which rock | fluctuated the label to the opening part side. It is explanatory drawing which shows the movement state of a pushing arm. It is explanatory drawing which shows the pressing state of the label with respect to the inside of a pseudo die. It is explanatory drawing which shows the mounting state of the label in a pseudo mold. It is explanatory drawing which shows the state which made the pseudo core approach in the pseudo die. It is explanatory drawing which shows the charging state of the label in the middle of a movement. It is explanatory drawing which shows the state which made the pseudo core approach in cavity. It is explanatory drawing which shows the state which mounted | wore the label in the cavity. 10 is an explanatory diagram illustrating an application example of Example 1. FIG. 6 is a schematic overall perspective view showing an example of an apparatus according to Embodiment 2. FIG. It is a front view of a label delivery apparatus. It is explanatory drawing which shows the taking-out state of the label by an adsorption | suction member. It is explanatory drawing which shows the state which the adsorption | suction member which adsorb | sucked the label moved above the pseudo die. It is explanatory drawing which shows the approach initial stage of the label with respect to a pseudo die. It is explanatory drawing which shows the holding | maintenance state of the label in a pseudo die. It is explanatory drawing which shows the delivery state of the label with respect to a pseudo core. It is explanatory drawing which shows the charging state of the label in the middle of a movement. It is explanatory drawing which shows the mounting state of the label with respect to the inside of a metal mold | die.

Explanation of symbols

9 Label 11 Pseudo core 17 Pseudo mold 21 Mold 49 Shield plate 51a / 51b Electrode bar

Claims (3)

In label insert molding in which a label adsorbed in a wound state on the outer peripheral surface of the pseudo core is mounted in a mold and then a synthetic resin is injected to form a molded product in which the label is integrated on the surface.
The inner surface has a hollow part that almost matches the outer shape of the pseudo core and has an insertion opening part on the side part. Each insertion opening part is located on the outside and is arranged adjacent to each other with a gap that matches the cavity spacing of the mold. The adsorbed and held label is entered into the hollow portion from the insertion opening while being elastically deformed into at least two pseudo molds and held in a state along the inner surface of the hollow portion to hold the label on the outer periphery of the pseudo core. After deforming to a shape that can be held on the surface,
After entering the pseudo core in the hollow part of the pseudo mold, adsorbing and holding the label held on the inner surface of the hollow part of the pseudo mold on the outer peripheral surface and delivering the label from the pseudo mold to the pseudo core,
While moving the pseudo core having the label held on the outer peripheral surface to the mold, the pseudo core is passed through the required high voltage electric field where the electric field toward the pseudo mold is shielded to pass the label to the required charge. Can be electrostatically attracted to the mold by charging
A label charging method characterized by that. In label insert molding in which a label adsorbed in a wound state on the outer peripheral surface of the pseudo core is mounted in a mold and then a synthetic resin is injected to form a molded product in which the label is integrated on the surface.
At least the label having the central portion in the longitudinal direction adsorbed and held, with respect to the pseudo mold having the hollow portion whose inner surface substantially matches the outer shape of the pseudo core and the opening portion communicating with the hollow portion in part. After being deformed into a shape that can be held in the pseudo core while being elastically deformed and held in the pseudo mold while being elastically deformed along the inner surface of the hollow portion,
After the pseudo core enters the hollow part of the pseudo mold and the label held on the inner surface of the hollow part of the pseudo mold is adsorbed and held on the outer peripheral surface , and the label is transferred from the pseudo mold to the pseudo core. ,
While moving the pseudo core having the label held on the outer peripheral surface to the mold, the pseudo core is passed through the required high voltage electric field where the electric field toward the pseudo mold is shielded to pass the label to the required charge. Can be electrostatically attracted to the mold by charging
A label charging method characterized by that. 3. A pair of claim 1 and claim 2, wherein after the label is delivered from the pseudo mold to the pseudo core, the pseudo core having the label wound around the outer peripheral surface is electrically shielded from the pseudo mold side. A label charging method in which a label is charged to a required charge by passing between electrode members and can be electrostatically attracted to the mold.

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