JP2011230230A - Tape cutting device, tape cutting method using the device, tape sticking device having the device and tape sticking method using the tape sticking device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent sticking of a tape to a cutting blade in cutting the tape having a plane provided with a pressure sensitive adhesive layer.SOLUTION: This tape cutting device cuts the tape having the plane provided with the pressure sensitive adhesive layer. The tape cutting device includes a first blade and a second blade arranged so as to cooperate for cutting the tape by relatively moving toward mutual ones. The first blade is arranged so as to be positioned on the plane side to the tape, and has a projection part projecting in the plane direction more than the tip of a blade, on an end surface continuing with the tip of the blade of the first blade and opposed to the plane, and the second blade is arranged so as to be positioned on the plane side on the opposite side of the plane to the tape.

Description

  The present invention relates to a tape cutting device for cutting a tape having a surface provided with an adhesive layer, a tape cutting method using the device, a tape attaching device including the device, and a tape using the tape attaching device. It relates to the pasting method.

  There are many types of tape having a surface provided with an adhesive layer, and they are used in various fields. For example, in the ink jet recording field, a head portion having a surface on which discharge ports for discharging ink are arranged (hereinafter referred to as a discharge surface) and an ink tank portion that stores ink supplied to the head portion are integrated. There is a cartridge type ink jet recording head.

  FIG. 5 is a diagram showing an example of such a cartridge type ink jet recording head. In a recording head having such a configuration, in general, ink is prevented from leaking from the ejection port during the distribution process, and is protected against the ejection surface 13 at the time of shipment for the purpose of protecting the ejection surface 13. Tape 14 is affixed. As the protective tape 14, a tape having an adhesive layer on one surface bonded to the discharge surface 13 and a non-adhesive base material on the other surface is used.

  This protective tape 14 is strongly required to have high attachment accuracy (for example, within about ± 150 μm with respect to a predetermined attachment reference position) so that the entire range where the discharge ports are arranged is appropriately covered. Yes. If the position where the protective tape 14 is applied is shifted and the discharge port is exposed, the discharge port may become clogged due to ink leakage from the discharge port or evaporation of the ink solvent during use. This is because problems such as recording failure may occur.

  FIG. 6 is a schematic side view showing a configuration of a conventional tape cutting device. Here, 11 is a protective tape feeding unit that unwinds the protective tape 14 wound in a roll shape with the separator 18 covering the adhesive layer attached. 6 is a peeling unit for peeling the separator 18 from the adhesive layer prior to cutting, and 12 is a separator winding unit for winding the peeled separator 18. The protective tape 14 that has been unwound from the protective tape feeding unit 11 and from which the separator 18 has been peeled off by the peeling unit 6 is transported to the cutting position by the tape transport unit 5. In the cutting position, a pair of blades, that is, a first blade 1 and a second blade 3 are arranged on both sides of the conveying path of the protective tape 14, and cooperate by moving relative to each other from both sides of the protective tape 14. The protective tape 14 is cut.

  4 is a tape attaching unit that supports and positions the non-adhesive substrate surface of the protective tape 14 in order to attach the cut adhesive layer of the protective tape 14 to the target location with high accuracy. is there. The tape attaching unit 4 can have a suction structure in order to facilitate positioning. Further, a TAG tape 17 may be attached to the protective tape 14 in order to facilitate the operation of peeling the protective tape 14 from the object to be attached in use. For this purpose, a TAG tape supply unit 8 for supplying the TAG tape 17 and a TAG tape attaching unit 7 are additionally arranged.

  However, in such a configuration, in the step of cutting the protective tape 14, the adhesive material of the adhesive layer of the protective tape 14 adheres to the cutting edge of the first blade 1 at the time of cutting, and protection is performed when the first blade 1 is raised after cutting. The tape 14 could be pulled up with the cutting edge. As a result, the protective tape 14 is peeled off from the tape attaching unit 4, and the position of the protective tape 14 that should be positioned with high accuracy is shifted, and as a result, the accuracy of attaching the object to be attached to the target location is lowered. There was a possibility.

  For this problem, Patent Document 1 proposes a configuration devised so that the adhesive material does not adhere to the cutting blade. This cutting blade is provided with a recess on the back of the blade, and prevents adhesive material adhering to the blade back (blade edge) from escaping to the recess by sliding the movable blade. ing. By applying the blade having such a structure to the cutting device of FIG. 6, adhesion of the adhesive material to the blade edge can be prevented.

  However, when the cutting edge itself becomes dull and the protective tape 14 is cut into a torn state, the base material of the protective tape 14 is included as shown in FIG. The cut part itself is easily caught on the cutting edge. As a result, as described above, the protective tape 14 is peeled off from the tape attaching unit 4 and the attaching accuracy of the object to be attached to the target location may be lowered. Such a phenomenon cannot be dealt with even if the blade having the structure described in Patent Document 1 is applied, and has only been dealt with by replacing the cutting blade.

JP 2006-175535 A

  The present invention prevents adhesion of the tape to the cutting blade due to the adhesive material of the adhesive layer, prevents the tape from being caught on the cutting blade when the cutting blade becomes dull, and improves the pasting accuracy due to these. It aims at making it possible to prevent the decrease.

A tape cutting device for cutting a tape having a surface provided with an adhesive layer,
A first blade and a second blade provided to cooperate to cut the tape by moving relative to each other;
The first blade is provided so as to be positioned on the side of the surface with respect to the tape, and is continuous with a tip of the blade of the first blade and is opposed to the surface with respect to the direction of the surface. And having a convex portion protruding from the tip of the blade,
The tape cutting device according to claim 1, wherein the second blade is provided so as to be positioned on a surface opposite to the surface with respect to the tape.

  According to the present invention, by the convex portion (projection) provided on the first blade, the tape adhesion to the blade edge by the adhesive material of the tape adhesive layer can be separated by the reaction force of the tape itself. In addition, there is an effect of preventing the phenomenon that the tape is caught on the first blade, which occurs when the cutting edge is cut and the tape is cut. Thereby, compared with the conventional tape cutting device, the positional deviation of the cut tape is prevented, and the replacement frequency of the cutting blade is remarkably reduced.

  Moreover, by applying the tape cutting device of the present invention to a tape applying device, it is possible to prevent positional deviation of the tape with respect to the target location of the object to be applied, and to apply the tape with high accuracy.

It is a typical side view explaining the structure and operation | movement of the tape cutting device of this invention. It is a figure which shows the laminated constitution of a general protective tape. It is a figure explaining the effect of the 1st blade of the tape cutting device of the present invention. It is a typical side view explaining the structure and operation | movement of the tape sticking apparatus of this invention. It is a figure which shows an example of a general ink tank integrated ink jet recording head. It is a typical side view which shows the structure of the conventional tape cutting device. It is a figure explaining protection tape adhesion to the 1st blade of the conventional tape cutting device.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The present invention is not limited only to these embodiments. These can be further combined, and all changes and modifications included in the concept of the present invention described in the claims can be made. Therefore, the present invention can naturally be applied to other techniques belonging to the spirit of the present invention. Can do.

(First embodiment)
Fig.1 (a)-(c) is a typical side view for demonstrating the structure and operation | movement of a tape cutting device in the 1st Embodiment of this invention. This tape cutting device is a tape having an adhesive layer on one side, for example, for preventing ink leakage from the discharge port of an ink tank integrated ink jet recording head and for cutting a protective tape 14 used to protect the discharge surface. Is suitable. In FIG. 1, components that can be configured in the same manner as in FIG.

  FIG. 2 shows an example of the layer structure of the protective tape 14. The protective tape 14 includes a base material 15 and an adhesive layer 16, and generally has a separator 18 on the adhesive layer 16 in order to prevent adhesion to a non-object before being attached to the object. The cutting in the tape cutting device of the present invention is performed on the protective tape 14 with the separator 18 peeled off. As an example, the protective tape 14 of the present embodiment has a base material 15 made of PET having a thickness of about 27 μm and an adhesive layer made of an acrylic adhesive material having a thickness of about 30 μm. The material of the separator 18 is PET, and a silicone release material is applied to the boundary surface side with the adhesive layer 16.

  Referring to FIGS. 1A to 1C again, the tape cutting device of the present embodiment includes a first blade 1 and a second blade 3 as cutting blades, and the first blade 1 is continuous with the tip of the blade. In addition, a convex portion (protrusion) 2 is provided on the end surface (“skin surface” 100) facing the protective tape 14 to be cut. The first blade 1 and the second blade 3 are moved relative to each other by the driving means (not shown), that is, the first blade 1 and the second blade 3 are moved relative to the protective tape 14, so that the protective tape 14 is moved. Work together to cut. The 1st blade 1 is provided so that it may be located in the side by which the adhesive layer 16 of the protective tape 14 which should be cut | disconnected was provided, and the 2nd blade 3 is the opposite side to the adhesive layer 16 of the protective tape 14 It is provided so as to be located on the side of the surface, that is, the surface of the substrate 15.

  In FIG. 1 (a), in the cutting operation of the protective tape 14, first, the first blade 1 is lowered, and the convex part 2 is pressed against the surface of the protective tape 14 on which the adhesive layer 16 is provided. 14 is bent in the direction of the second blade 3. Next, as shown in FIG. 1 (b), the second tape 3 moves toward the first blade 1 from the surface of the base material 15 of the protective tape 14, thereby cutting the protective tape 14. FIG. 1C shows a state where the second blade 3 has returned to the origin position. At this time, the protective tape 14 in a state bent by the convex portion 2 tries to leave the first blade 1 by its own reaction force with a tape contact point (described later in FIG. 3) of the convex portion 2 as a fulcrum. To do. As described above, in the mechanism of the tape cutting device according to the present invention, the tape attached to or caught on the blade edge of the first blade 1 when the tape is cut by the effect of the convex portion 2 provided on the blade edge of the first blade 1 is a tape. It can be pulled away by its own reaction force.

  With reference to FIG. 3, the convex part 2 of the 1st blade 1 of this embodiment is demonstrated in detail. At the cutting point 9 of the first blade 1, the tape is cut. As described above, the convex portion 2 is for pressing against the surface of the protective tape 14 on which the adhesive layer 16 is provided and bending it before cutting the protective tape 14. Accordingly, the tape contact point 10 of the convex portion 2 is more protected than the tip of the blade, that is, the cutting point 9 in the positional relationship in the moving direction during the cutting operation of the first blade 1 that is the cutting blade, that is, in the downward direction in this example. Projects to the tape 14 side. Further, as described above, the convex portion 2 also has a function of separating the tape attached or caught on the cutting edge of the first blade 1 with the protective tape 14 being cut as a fulcrum as described above. Accordingly, in the positional relationship in the direction intersecting the cut surface of the protective tape 14, that is, in the tape transport direction, the tape contact point 10 of the convex portion 2 is positioned on the opposite side of the second blade with respect to the cut point 9. Provided. Regarding the positional relationship between the first blade 1 and the second blade 3 in the tape transport direction, the first blade 1 may be provided upstream of the second blade 3 in the tape cutting device of the present invention. It may be provided so as to be located on the downstream side. However, providing the first blade 1 so as to be located on the downstream side with respect to the second blade 3 prevents the positional deviation of the cut tape, thereby improving the workability in the subsequent process of using the cut tape. It is preferable in terms of improvement. The above example is an example in which the first blade 1 and the second blade 3 are set in the vertical direction, and the transport direction of the protective tape 14 is set in the horizontal direction. It will be understood that the present invention is not limited to these as long as it can be demonstrated.

  The convex portion 2 can be formed by cutting out from the same member as the main body of the first blade 1. As described above, since the convex portion 2 is for pulling the protective tape 14 away from the cutting edge, it is not desirable that the protective tape 14 adhere to the convex portion 2 itself. Accordingly, the surface of the convex portion 2 can be subjected to a general surface treatment process such as a fluorine process in order to prevent adhesion of the adhesive material of the adhesive layer 16. In addition, as the material of the convex portion 2, a material to which the adhesive material of the adhesive layer 16 is difficult to adhere can be used. For example, the convex portion 2 can be formed by fixing a product made of a member different from the first blade 1 to the marginal surface 100 of the first blade 1 with an adhesive. As the different member, for example, a fluorocarbon resin (such as “Teflon (registered trademark)” manufactured by DuPont) can be used.

  In this embodiment, the tape contact point 10 is closer to the tape by 0.15 mm in the moving direction during cutting than the cutting point 9, and is separated from the cutting point 9 by 0.3 mm downstream in the tape transport direction. The convex part 2 of the 1st blade was set so that it may be arranged. In the present embodiment, the convex portion 2 is formed by cutting out from the first blade 1. Furthermore, as the shape of the convex portion 2, the bank shape having a rectangular cross section is formed over the entire width direction of the blade edge of the first blade 1 (direction orthogonal to FIG. 1). However, it will be understood that the position, shape, and size of the convex portion 2 itself are not particularly limited as long as the above-described effects of the present invention can be obtained. For example, a plurality of convex portions may be arranged at appropriate intervals in the width direction of the cutting edge of the first blade 1.

  As described above, according to the tape cutting device of the present embodiment, the tape attached to or caught on the cutting edge of the first blade 1 at the time of cutting the tape by the effect of the convex portion 2 provided on the marginal surface 100 of the first blade 1 The tape can be pulled away by the reaction force of the tape itself. As a result, the adhesive material of the adhesive layer of the tape is less likely to adhere to the cutting edge of the first blade of the tape cutting device. Moreover, the position shift of the tape cut | disconnected by the tape cutting device is prevented, and the workability | operativity in the process of using the cut tape after a tape cutting process improves. Furthermore, when the tape is attached or caught on the cutting edge of the first blade 1, it is necessary to stop the tape cutting device and remove the attached material from the cutting edge. When the frequency increases, the blade itself needs to be replaced from the viewpoint of operability. However, according to the present invention, the frequency of occurrence of these situations is reduced.

(Second Embodiment)
FIGS. 4A to 4D are schematic side views for explaining the configuration and operation of a tape applicator provided with the tape cutting device of the first embodiment as a second embodiment of the present invention. FIG. In the present embodiment, a tape similar to the protective tape 14 in the first embodiment is used as a tape to be cut. In this example, the object to be attached to the tape is a cartridge type ink tank integrated ink jet recording head, and the target location is the ejection surface. The protective tape 14 is affixed so that all of the discharge ports arranged on the discharge surface are covered. Also in this figure, the same reference numerals are assigned to corresponding parts of the respective components that can be configured in the same manner as in FIG.

  The tape applicator of this embodiment includes the same components as those in FIG. 6 in addition to the tape cutting device according to the first embodiment including the first blade 1 and the second blade 3 having the convex portions 2. . That is, it has a protective tape feeding unit 11, a peeling unit 6 for the separator 18, a winding unit 12 for winding the peeled separator 18, and a tape transport unit 5 for transporting the protective tape 14 to the cutting position. Yes. Further, by supporting the base material surface of the cut protective tape 14, it is possible to appropriately position the target object of the object to be pasted and to smoothly press the adhesive layer 16 on the object. And a tape attaching unit 4. For the tape transport unit 5 and the tape affixing unit 4, in order to obtain a state in which the protective tape 14 is transported and transported reliably and accurately, or to reliably support the protective tape 14 after cutting, For example, an adsorption structure using vacuum or electrostatic force can be applied. The tape transport unit 5 and the tape attaching unit 4 can also be used as holding members for holding the tape when the tape is cut.

  Furthermore, in the apparatus of the second embodiment, the TAG tape 17 is attached to the protective tape 14 in order to facilitate the operation of peeling the protective tape 14 from the ejection surface of the ink tank-integrated ink jet recording head that is the object to be attached in use. It has a configuration for pasting. That is, a TAG tape supply unit 8 and a TAG tape attaching unit 7 for supplying the TAG tape 17 are arranged. The TAG tape supply unit 8 and the TAG tape attaching unit 7 attach the TAG tape 17 by sandwiching the tip of the protective tape 14 from both sides. The TAG tape supply unit 8 and the TAG tape attaching unit 7 are movable by a drive mechanism (not shown) between the attaching position and a position retracted from now. The TAG tape attaching unit 7 can be moved together with the tape attaching unit 4 to a position for attaching a protective tape to an object by a drive mechanism (not shown).

  FIG. 4A shows the origin state of the tape applicator in which the protective tape 14 to be cut is set. The first blade 1 and the second blade 3, which are cutting blades, the tape attaching unit 4, and the TAG tape supply unit 8 and the TAG tape attaching unit 7 are in the retreat positions. The protective tape 14 is sent out from the protective tape feeding unit 11, and the separator 18 is wound up by the separator winding unit 12 by the peeling unit 6. The protective tape 14 with the separator 18 peeled off, that is, the base material provided with the adhesive layer 16 is supported by the tape transport unit 5.

  In FIG. 4B, the protective tape 14 is transported by the tape transport unit 5 for a predetermined length desired to be cut, and is supported by the tape attaching unit 4 on the downstream side in the transport direction from the cutting blade. Thereby, the protective tape 14 is set to the cutting position. The TAG tape supply unit 8 and the TAG tape attaching unit 7 are driven, and the tip of the protective tape 14 is sandwiched from both sides so that the TAG tape 17 supplied by the TAG tape supply unit 8 contacts the adhesive layer of the protective tape 14. As a result, the TAG tape 17 is attached to the tip of the protective tape 14. As described with reference to FIG. 1, the protective tape 14 is bent in the direction of the second blade 3 by pressing the convex portion 2 of the first blade 1 against the protective tape 14.

  In FIG. 4C, the protective tape 14 is cut by the mechanism described with reference to FIG. That is, the second blade 3 moves from the surface of the base material 15 of the protective tape 14 toward the first blade 1 and the protective tape 14 is cut. At this time, the protective tape 14 bent by the convex portion 2 tends to be separated from the first blade 1 by its own reaction force with the tape contact point of the convex portion 2 as a fulcrum. In the mechanism of the present invention, due to the effect of the convex portion 2 provided at the cutting edge of the first blade 1, the tape that adheres to or is caught on the cutting edge of the first blade 1 when cutting the tape can be pulled away by the reaction force of the tape itself. On the other hand, the TAG tape supply unit 8 returns to the retracted position. The tape attaching unit 4 supports the protective tape 14 to which the TAG tape 17 is attached together with the TAG tape attaching unit 7.

  In FIG. 4D, the second blade 3 returns to the retracted position. The tape affixing unit 4 moves to a predetermined position together with the TAG tape affixing unit 7 and presses the adhesive layer of the protective tape 14 to which the TAG tape 17 is affixed against the target location, thereby Affix protective tape 14 to the target location.

  By using the tape applicator of this embodiment, the accuracy of attaching the tape to the object to be applied is improved compared to the case of using the conventional tape cutter, and the cutting frequency of the cutting blade of the tape cutter is changed. Significantly improved.

  In this example, the object to be attached is a cartridge type ink tank integrated ink jet recording head, and the target portion is the ejection surface. However, from the viewpoint of protecting the ejection surface of the recording head, the target inkjet recording head is not necessarily limited to the ink tank integrated type. Also, in fields other than the inkjet field, by using the present invention for products having locations that should be protected in the distribution process, it is possible to obtain good pasting accuracy to the target location of the object to be pasted. .

1 First blade
2 Convex
3 Second blade
4 Tape application unit
5 Tape transport unit
10 Tape contact point
100 Shinogi surface

Claims (10)

A tape cutting device for cutting a tape having a surface provided with an adhesive layer,
A first blade and a second blade provided to cooperate to cut the tape by moving relative to each other;
The first blade is provided so as to be positioned on the side of the surface with respect to the tape, and is continuous with a tip of the blade of the first blade and is opposed to the surface with respect to the direction of the surface. And having a convex portion protruding from the tip of the blade,
The tape cutting device according to claim 1, wherein the second blade is provided so as to be positioned on a surface opposite to the surface with respect to the tape.   The tape cutting device according to claim 1, further comprising a holding member for holding the tape at the time of cutting the tape.   The tape cutting device according to claim 2, wherein the holding member has an adsorption structure.   The tape cutting device according to any one of claims 1 to 3, wherein the convex portion is subjected to a surface treatment for preventing adhesion of the adhesive layer.   The tape cutting device according to any one of claims 1 to 4, wherein a material to which the adhesive layer is difficult to adhere is used for the convex portion. A method for cutting a tape having a surface provided with an adhesive layer using the tape cutting device according to any one of claims 1 to 5,
Transporting the tape such that the surface faces the first blade;
Moving the first blade in a direction toward the surface, and bending the tape by pressing the convex portion against the adhesive layer;
Cutting the tape by moving the second blade toward the first blade;
A tape cutting method comprising: A tape affixing device for affixing a tape having a surface provided with an adhesive layer to an object,
A tape cutting device according to any one of claims 1 to 5;
A tape transport unit for transporting the tape toward the tape cutting device;
A tape attaching unit for attaching the tape cut by the tape cutting device to a target location of the object;
A tape applicator characterized by comprising:   The tape applicator according to claim 7, wherein at least one of the tape transport unit and the tape applicator has a function as a holding member for holding the tape when the tape is cut. The object is an inkjet recording head;
The tape attaching apparatus according to claim 7 or 8, wherein the target location is an ejection surface of the inkjet recording head. A method of attaching a tape having a surface provided with an adhesive layer to an object using the tape attaching device according to any one of claims 7 to 9,
The tape transport unit transports the tape so that the surface faces the first blade toward the tape cutting device;
The tape is moved by moving the first blade in the direction toward the surface, bending the tape by pressing the convex portion against the surface, and then moving the second blade toward the first blade. Cutting the
Applying the cut tape to a target location of the object by the tape application unit;
A method for applying a tape, comprising:

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