JP4453038B2 - Continuous sticking method of molded parts - Google Patents

Description

  The present invention relates to a method for continuously sticking molded parts, and relates to a method for continuously sticking molded parts in which a small rubber sheet or resin sponge molded part having a thickness of several millimeters is continuously stuck to a predetermined position of a workpiece. .

  Conventionally, there is a pasting device that peels off films, stickers, etc., which are placed side by side on a continuous sheet-like mount (release paper) from the mount, and continuously sticks them to a predetermined position of a workpiece such as a product to be pasted. Various developments have been made. Since these films and sheets are sufficiently thin in the thickness of the laminated base material and adhesive material layer, rolls are set in advance in the pasting device, and the product as a workpiece (adhered body) is predetermined. It is possible to affix continuously to the position.

  However, there are various types of molded parts such as synthetic rubber sheets and resin sponge members having a thickness of several millimeters. These molded parts are used, for example, as packings and cushion materials in small products such as mobile phones. In a normal pasting operation, as shown in FIG. 7, a double-sided pressure-sensitive adhesive sheet 51 as a mount is previously pasted on the back surface of the molded part 50, pressed into a predetermined shape, and a plurality of pieces are placed on the half-cut mount 52. A component sheet 53 with a mount 52 in which the molded components P are arranged vertically and horizontally is provided. In order to attach such a molded part P to a predetermined position of a workpiece as a product, an operator mounts the component sheet 53 using tweezers or the like as shown in FIGS. 7 (a) and 7 (b). The present situation is that the molded part P is peeled off from 52 and directly attached to a predetermined position of the adherend (work) 60 by hand.

  By the way, a button or plate-shaped resin molded product 50 (FIG. 8 (a)) as shown in FIGS. In FIG. (B)) and the like, the pressure-sensitive adhesive sheet 57 cut to the same size is manually affixed to the affixing surfaces 55a and 56a of these molded parts 55 and 56, and the release paper 58 is peeled off to remove the target product 60. Affixed at a predetermined position. For these operations, it takes time and labor to cut a double-sided tape (not shown) according to the shape of the molded part P, and affix the adhesive sheet 57 as a cut piece. Very bad.

On the other hand, a pressure-sensitive transfer pressure-sensitive adhesive tape is disclosed in which an adhesive material is applied on a substrate in a predetermined pattern to improve the debonding performance. In this pressure-sensitive transfer adhesive tape, by setting the predetermined dot pattern, the amount of the adhesive material transferred to the adhesive object is reduced, so that the fastening performance is lowered. By devising the adhesive material component and the dot pattern The adhesive performance is improved (Patent Document 1).
See JP-A-2006-206657.

  However, the pressure-sensitive adhesive tape disclosed in Patent Document 1 is intended for use as, for example, a stationery for sealing an envelope, and a transfer tool containing a pressure-sensitive transfer pressure-sensitive adhesive tape is also disclosed. Therefore, the adhesive material is intended to be transferred in a band shape having a predetermined width with respect to the transfer target. For example, according to various molded parts corresponding to the tape width, the adhesive layer made of a dot pattern on one surface of the molded part Is not intended to form. Therefore, the object of the present invention is to solve the above-mentioned problems, and use a pressure-sensitive transfer adhesive tape having a dot pattern as described above, or a double-sided tape half-cut into a predetermined shape, so that an adhesive surface of a small molded part is used. The adhesive layer is formed, and the molded part on which the adhesive layer is formed is gripped and moved to the workpiece set at a predetermined position, and the molded component is continuously applied to each workpiece that is continuously supplied. It is an object of the present invention to provide a method for continuously sticking molded parts.

In order to achieve the above-mentioned object, the present invention feeds a pressure-sensitive transfer adhesive tape having a transferable adhesive material formed on the surface of a base material from a supply reel to a transfer position, while being held on a sticking head from a component supply means. The molded part is transferred to the transfer position, and at the transfer position, the molded part is pressed against the adhesive material of the pressure-sensitive transfer adhesive tape to transfer the adhesive material to the adhesive surface of the molded part, and the pressure sensitive In synchronization with the winding speed of the transfer adhesive tape, the pressure-sensitive transfer adhesive is moved horizontally at the peeling edge by horizontally moving the pasting head beyond the peeling edge for peeling the adhesive material from the pressure-sensitive transfer adhesive tape. The tape is bent, the adhesive material transferred to the molded part from the pressure-sensitive transfer adhesive tape is peeled off, and the molded part is held and transferred to the work position to be pasted by moving the sticking head, and the adhesive Through, characterized in that affixing the molded parts to a predetermined position of the workpiece.

At this time, in the pressure-sensitive transfer adhesive tape, a transferable adhesive material having a predetermined dot pattern is formed on the surface of the base material, and the dot pattern adhesive material is pressed and transferred in accordance with the bonding surface of the molded part. It is preferable.

By cutting the shape corresponding to the shape of the molding part's sticking surface so as to leave the mount , the double-sided tape on which the transferable adhesive base material is formed is fed from the supply reel to the transfer position, while from the component supply means. The molded part held by the sticking head is transferred to the transfer position, and the molded part is pressed against the adhesive base material of the double-sided tape at the transfer position, and the adhesive material is applied to the sticking surface of the molded part. Transfer the base material, synchronize with the winding speed of the double-sided tape, move the sticking head horizontally beyond the peeling edge to peel the adhesive material base material from the double-sided tape, and at the peeling edge The double-sided tape is bent, the adhesive material base material transferred to the molded part from the double-sided tape is peeled off, and the molded part is held and transferred to the work position to be pasted by moving the sticking head. Characterized by affixing the molded parts to a predetermined position of the workpiece via the adhesive base material.

  As described above, according to the present invention, the pressure-sensitive adhesive layer corresponding to the adhesive surface of a molded part having various thicknesses is formed, and at a predetermined position of each product continuously supplied, There is an effect that the molded part can be attached with high accuracy.

  Hereinafter, as the best mode for carrying out the method for continuously sticking molded parts of the present invention, the following examples will be described with reference to the accompanying drawings.

FIG. 1 is a schematic front view showing the overall configuration of a sticking device used in a method for continuously sticking molded parts. As shown in the figure, the sticking device 1 used for the continuous sticking method of the molded part P according to the present invention has a dot pattern over the entire width of the tape 11 on the substrate 11 as shown in FIG. The pressure-sensitive transfer adhesive tape 10 is formed, and the supply reel 3 to which the pressure-sensitive transfer adhesive tape 10 wound in a roll shape is mounted, and the pressure-sensitive transfer adhesive tape 10 is unwound from the supply reel 3. On the movement path, the pressure-sensitive transfer adhesive tape 10 is pressed against the adhesive material surface of the dot pattern on the base material 11 to transfer the adhesive material 12, and the adhesive material 12 has a predetermined shape. A component supply feeder in which a main body 1A composed of a take-up reel 4 on which a backing sheet 10b peeled off is wound, and a molded part P as a sticking material are accommodated and the molded part P is aligned and supplied from a take-out port 5 1B and take The molded part P aligned with the opening 5 is sucked and held and moved to the adhesive transfer part 20, and the molded part P with the adhesive 12 transferred is further moved to the pasting stage 6 located in front of the main body 1A. And a predetermined position of a work 7 such as a product to be pasted placed on the pasting stage 6, which has a pasting head 15 and a transfer device (not shown) capable of reciprocating the pasting head 15 along a predetermined path. And a molded part sticking part 1C for sticking the molded part P to the head.
In addition, in this specification, the sticking thing stuck to the workpiece | work 7 as a sticking target object is named generically, and the code | symbol P is attached | subjected as the molding part P. Products, resin sponge molded products, cushion materials, partition materials, etc., which are representatively referred to as parts used in various applications, have a predetermined sticking surface, and the sticking surface has the above-mentioned adhesive material Needless to say, there are various materials, molding means, and molding shapes as long as the part can transfer the material.

  As shown in FIG. 1, the supply reel 3 of the main body 1 </ b> A is detachably attached to a rotation support shaft 3 a formed at the upper end of an arm 8 attached so as to project outward from the main body device. It has become. On the supply reel 3, a roll-shaped pressure-sensitive transfer adhesive tape 10 is mounted on the rotation support shaft 3a. On the other hand, a rotation support shaft 4a projects from the central side surface of the main body 1A, and the take-up reel 4 is detachably mounted on the rotation support shaft 4a. Each of the rotation support shafts 3a and 4a is controlled to be rotatable in synchronization by a drive motor (not shown) that can be adjusted to a rotation speed corresponding to the winding amount by an operation control unit (not shown). ing.

  The pressure-sensitive transfer adhesive tape 10 is thus laid on the moving path between the supply reel 3 and the take-up reel 4 and guided to the adhesive material transfer unit 20 via the plurality of rollers 30, and the adhesive material 12 is transferred. The mounted sheet 10 b after being wound is wound around the take-up reel 4 by the feed roller 31 and the guide roller 32.

  The configuration of the adhesive material transfer unit 20 will be described with reference to FIG. As shown in the figure, the adhesive material transfer portion 20 includes a peeling edge 21 made of a stainless steel manifold having a sharp tip when viewed from the side in this embodiment. The peeling edge 21 has a side surface shape having an acute angle portion that forms an angle (for example, 30 °) with the horizontal upper surface being the tip side. At this time, the tip 21a is rounded. For this reason, even when the pressure-sensitive transfer pressure-sensitive adhesive tape 10 is bent at the tip end with a predetermined tension applied, it does not tear or break. In addition, as a material of the peeling edge 21 part, the material which can carry out smooth surface processing, such as special steel, aluminum, ceramics other than stainless steel, and the material excellent in abrasion resistance is preferable.

  As shown in FIG. 2A, round pores 22 penetrating the surface are drilled at predetermined intervals in the vertical and horizontal directions in the peeling edge 21, and all the round pores 22 communicate with each other. The holes are aggregated and communicated with the horizontal suction hole 23 and connected to a vacuum device (not shown).

  The parts feeder 1B contains a large number of molded parts P in a container, and the molded parts P are aligned at the take-out port 5 by an alignment mechanism (not shown) and can be delivered to the pasting head 15 in a predetermined holding state. This is a material supply device.

  The sticking head 15 is a movable head having a suction surface 15a (FIG. 3 (a)) formed at the tip (lower surface). In this embodiment, the sticking head 15 is installed on the ceiling 16 in the main unit as shown in FIG. The servomotor is driven along a horizontal linear guide (not shown) that moves in the direction of the horizontal arrow with high accuracy, and can be extended and contracted in the direction of the vertical arrow by the suspension rod 17. It is possible to move between the adhesive material transfer unit 20 and the pasting stage 6 with high accuracy by a predetermined control routine.

  Here, the characteristics of the pressure-sensitive transfer adhesive tape 10 used in the present invention will be briefly described. In the pressure-sensitive transfer adhesive tape 10, it is preferable to use a resin sheet made of a material that can effectively obtain a peeling action of an adhesive material such as polyethylene, polyethylene terephthalate, polypropylene, and polyvinyl chloride for the base material 11. The tape width may be determined according to the dimensions of the molded part P, but it is preferable to make the tape width such that the adhesive material 12 can be uniformly transferred to the sticking surface of the molded part P and the loss after transfer is small. . As the adhesive material 12 applied to the substrate 11, a general acrylic adhesive material is preferable, and various known printing methods can be used to form a dot pattern on the substrate 11. The dot diameter and height of the dot pattern is set to several tens of μm to 1 mm, etc., and the planar shape can be selected from other shapes such as ◇ in addition to ○, and the dot spacing is also pressure sensitive transfer adhesive tape It is preferable to set appropriately from the relationship with the occupied area per unit area of 10 and the relationship with the dot diameter.

Here, with reference to FIG. 1, FIG. 3 (a)-(d), the continuous sticking method of the molded component P using the pressure-sensitive transfer adhesive tape 10 is demonstrated.
The molded part P is cut and processed into a predetermined shape that can be pasted, supplied into a known part feeder 1B (see FIG. 1), passed through a predetermined alignment mechanism (not shown) in the part feeder 1B, and taken out. 5 are aligned in a state where their orientations are aligned. Then, the sticking head 15 moves to the take-out port 5, and the molded part P is held at a predetermined position on the lower surface of the sticking head 15 by a predetermined holding mechanism. In this embodiment, a vacuum suction surface 15 a is formed on the lower surface as a holding mechanism for the sticking head 15. As a holding mechanism for the sticking head 15, a mechanically known gripping mechanism such as a vacuum suction mechanism or various shapes of chucks can be appropriately employed as the holding mechanism. At this time, when the molded part P to be held is a soft part, it is preferable to employ a holding mechanism suitable for the material of the object so as not to damage the part.

  In the present embodiment, an example will be described in which the adhesive material 12 is transferred to the attachment surface 55a of the plate 55, which is the synthetic resin molded product shown in FIG. FIG. 3A shows that the sticking head 15 having the plate 55 adsorbed on the lower surface reaches the position immediately before the peeling edge 21 of the adhesive transfer portion 20 and presses against the adhesive material surface 12 (FIG. 1) of the pressure-sensitive transfer adhesive tape 10. The state is shown. At this time, the pressure-sensitive transfer pressure-sensitive adhesive tape 10 is fixed by suction negative pressure supplied from the supply reel 3 to the position of the peeling edge 21 where the new adhesive material 12 is applied to the peeling edge 21 ( FIG. 3 (b)). And the sticking head 15 descend | falls and the pressure sensitive transfer adhesive tape 10 of the peeling edge 21 position is pressed by the sticking surface 55a of the plate 55. FIG. With this pressing force, only the range of the sticking surface 50 of the plate 55 is transferred to the individual dot-like adhesive material 12 of the dot pattern on the pressure-sensitive transfer adhesive tape 10. Thereafter, in a state where the negative pressure is reduced and the pressure-sensitive transfer adhesive tape 10 is prevented from being lifted, the backing sheet 10b is wound on the peeling edge 21 side, and the winding speed on the peeling edge 21 is synchronized. As shown in FIGS. 3C and 3D, the sticking head 15 is moved horizontally in the direction of the arrow. As a result, the plate 55 having the dot pattern adhesive material 12 transferred to the sticking surface 55a moves to the sticking stage 6 (FIG. 1). In this pressure-sensitive transfer adhesive tape 10, the adhesive force between the adhesive material 12 forming the dot pattern and the mount tape 10b is greater than the adhesive force between the molded part P (the attachment surface 55a of the plate 55). It is set to be smaller.

  Further, as shown in FIG. 1, the sticking head 15 advances along a conveyance path (such as a linear guide) to the sticking stage 6 on which the work 7 to be stuck is placed with the plate 55 held on the lower surface. To do. Then, the sticking head 15 reaches the position of the work 7 on the sticking stage 6, positioning of the plate 55 held on the lower surface of the head and the sticking position of the work 7 is completed, and the sticking surface 55 a of the plate 55 is pressed against the work 7. Thus, the plate 55 is attached to the target position of the workpiece 7. Thereafter, the pasting head 15 moves to a fixed position of the component take-out port 5 of the component feeder 1B through the conveyance path, and one cycle is completed.

  FIG. 4 shows the pressure-sensitive transfer adhesive tape 10 viewed in the direction of the white arrow in FIG. In this way, the pressure-sensitive transfer adhesive tape 10 has the dot pattern adhesive 12 corresponding to the area of the molded part P (plate 55) continuously transferred from the dot pattern adhesive surface formed on the entire surface, and after the transfer. It is wound up on a take-up reel 4 (FIG. 1). FIG. 5 shows the dot pattern surface of the pressure-sensitive transfer pressure-sensitive adhesive tape 10 after transfer when the molded part P or the like having a different shape is continuously attached to the work 7 (reference marks indicating the transfer of the adhesive material 12). It is explanatory drawing which showed typically. In this manner, the dot pattern of the pressure-sensitive transfer adhesive tape 10 can transfer the dot pattern adhesive 12 over the entire transfer surface range, regardless of the shape of the transfer surface (sticking surface) of the molded part P. Therefore, by supplying the molded part P having a different shape by the switching means (not shown) provided in the part feeder 1B, the sticking head 15 can have a round shape (13a) and a rectangular shape (13a) as shown in FIG. 13b) The molded parts P of the pressure sensitive transfer pressure-sensitive adhesive tape 10 are applied to the sticking surface of the molded part P by moving the molded parts P alternately and continuously and depending on the shape of each part at the peeling edge 21 position. Can be transferred.

6A and 6B, as another embodiment, the adhesive base material 42 having a slightly smaller area than the sticking surface of the molded part P is laser-cut so as to leave only the mount 41 side with respect to the double-sided tape 40. machine sided tape 40 obtained by processing (not shown) is passed over to the transfer edge 21 is adhesive base material 42 is stopped so as to come to a predetermined transfer position, the viscosity Chakuzaimotozai 42 of that, application head 15 shows a state in which the molded part P on the lower surface is pressed (FIGS. 6A and 6B). After that, as shown in FIGS. 6C and 6D, the double-sided tape 40 is synchronously wound and the horizontal movement of the sticking head 15 in the direction of the arrow is performed in the same manner as described above. Forty adhesive material bases 42 are transferred to the sticking surface of the molded part P. In the case of the present embodiment, in order to accurately transfer the adhesive base material 42 formed by cutting the double-sided tape 40 while leaving the mount 41, to the lower surface of the molded part P, the accuracy of the positioning mechanism It is necessary to secure On the other hand, when transferring the dot pattern adhesive 12 of the pressure-sensitive transfer adhesive tape 10 described above, the transfer surface only needs to be positioned within the width of the pressure-sensitive transfer adhesive tape 10, so that the transfer position is misaligned. There is an advantage that problems such as these hardly occur.

The schematic block diagram which showed the structure of the sticking apparatus used for the continuous sticking method of the molded component of this invention. Sectional drawing and the top view which showed the adhesive material transfer state by the pressure-sensitive transfer adhesive tape in the transfer edge of the apparatus shown in FIG. Explanatory drawing which showed the transfer state of the dot pattern from the pressure-sensitive transfer adhesive tape in a transfer edge shown in FIG. 2 to a molded component. Explanatory drawing which showed a part of pressure-sensitive transfer adhesive tape which a dot pattern was transcribe | transferred and is in a winding state. The partial top view of the tape which showed an example of the dot pattern of the adhesion layer transcribe | transferred from the pressure-sensitive transfer adhesive tape. Sectional drawing and the top view which showed the transfer state of the adhesive base material by the double-sided tape in the transfer edge of the apparatus shown in FIG. Explanatory drawing which showed an example of the conventional sticking method of the molded component with thickness. Explanatory drawing which showed an example of the conventional sticking method of the molded part which consists of another shape with thickness.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Sticking apparatus 1A Main body part 1B Parts feeder 1C Molded part sticking part 5 Taking out port 6 Sticking stage 7 Work 10 Pressure-sensitive transfer adhesive tape 11 Base material 12 Adhesive material 15 Adhesive head 20 Adhesive material transfer part 21 Peeling head

Claims (3)

The pressure-sensitive transfer adhesive tape on which a transferable adhesive material is formed on the surface of the substrate is fed from the supply reel to the transfer position, while the molded part held by the application head from the component supply means is transferred to the transfer position,
The pressure-sensitive transfer adhesive tape is pressed against the pressure-sensitive transfer adhesive tape at the transfer position to transfer the pressure-sensitive adhesive material to the surface of the molded component,
In synchronization with the winding speed of the pressure-sensitive transfer pressure-sensitive adhesive tape, horizontally moving the sticking head beyond the peeling edge for peeling the pressure-sensitive adhesive material from the pressure-sensitive transfer pressure-sensitive adhesive tape,
Bending the pressure-sensitive transfer adhesive tape at the peeling edge to release the adhesive material transferred from the pressure-sensitive transfer adhesive tape to the molded part,
By moving the sticking head, the molded part is held and transferred to the work position to be stuck,
A method for continuously pasting molded parts, wherein the molded parts are pasted to predetermined positions of the workpiece via the adhesive material. The pressure-sensitive transfer adhesive tape is formed with a transferable adhesive material consisting of a predetermined dot pattern on the substrate surface,
The method for continuously sticking molded parts according to claim 1, wherein the adhesive material having the dot pattern is pressed and transferred in accordance with the sticking surface of the molded parts. By cutting the shape corresponding to the shape of the surface of the molded part to leave the mount , the double-sided tape on which the transferable adhesive base material is formed is fed from the supply reel to the transfer position, while from the component supply means. Transferring the molded part held by the sticking head to the transfer position;
At the transfer position, the molded part is pressed against the adhesive material base of the double-sided tape to transfer the adhesive material base to the sticking surface of the molded part,
In synchronization with the winding speed of the double-sided tape, horizontally moving the sticking head beyond the peeling edge for peeling the adhesive base material from the double-sided tape,
Bending the double-sided tape at the peeling edge to peel off the adhesive material substrate transferred from the double-sided tape to the molded part,
The molding part is continuously transferred to the position of a workpiece to be pasted by moving the sticking head, and the molded part is stuck to a predetermined position of the workpiece via the adhesive base material. Pasting method.

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