JP5961574B2 - Balance weight cutting device - Google Patents

Description

  The present invention relates to a balance weight cutting device, and more particularly, to a cutting device that cuts a balance weight in which a plurality of weight segments are arranged and pasted on one adhesive surface of a double-sided adhesive tape.

  In the wheel assembly state in which tires of vehicles such as automobiles are incorporated in the wheel, if the imbalance in the circumferential direction around the rotation axis of the wheel assembly and the rotation axis direction becomes large, problems such as generation of vibration, noise, etc. occur during running. It becomes like this. This vibration and noise are caused by wheel imbalance. In order to cancel this unbalance, a balance weight is attached to the wheel.

  As a balance weight to be assembled to the wheel, there is a balance weight to be assembled to the wheel by attaching a weight formed in a substantially strip-like flat plate shape with a double-sided adhesive tape. There is also a balance weight in which this weight is formed from a plurality of weight divisions.

  In this balance weight, the release paper covers the adhesive surface of the double-sided adhesive tape with the wheel. This release paper protects the adhesive surface in a state before being assembled to the wheel. And when assembling to the wheel, the release paper is peeled off to expose the adhesive surface, and it is adhered (assembled) to the wheel.

  The balance weight having a plurality of weight divisions on this weight is adjusted after the mass is adjusted to a predetermined mass for canceling the wheel unbalance by the weight producing apparatus for correcting the unbalance described in Patent Document 1. , Assembled to the wheel. In Patent Document 1, a balance weight having a plurality of weight divisions is sent out at a predetermined length so as to have a predetermined mass and cut.

  However, in the apparatus described in Patent Document 1, the balance weight is sent out and cut in a state where the release paper is peeled from the double-sided adhesive tape (the state where the adhesive surface to the wheel is exposed). At this time, the surface of the double-sided pressure-sensitive adhesive tape from which the release paper has been peeled is conveyed so as to slide on the upper surface of the dispensing table. That is, the pressure-sensitive adhesive surface of the double-sided pressure-sensitive adhesive tape from which the release paper has been peeled is in contact with another member (the upper surface of this dispensing table) before being assembled to the wheel. For this reason, there has been a problem that the adhesive surface of the double-sided adhesive tape is contaminated by foreign matters such as dust existing on the upper surface of the dispensing table, and the adhesive force to the wheel is reduced.

Japanese Patent Application Laid-Open No. 10-142094

  The present invention has been made in view of the above circumstances, and provides a balance weight cutting device capable of cutting to a predetermined mass without causing a decrease in adhesive force on the adhesive surface of the balance weight. Is an issue.

  In order to solve the above-mentioned problems, the present inventors have studied a cutting device, and as a result, a cutting device that cuts the double-sided adhesive tape of the balance weight while the adhesive surface of the balance weight is protected by the release paper. It was found that the above problems can be solved.

  That is, the balance weight cutting device according to the present invention has a balance weight in which a plurality of weight segments are attached to one adhesive surface of a double-sided adhesive tape and the other adhesive surface is protected by a release paper. A balance weight cutting device that cuts between two weight segments, a cutting blade that is pressed against a double-sided adhesive tape from one side of the adhesive surface and cuts the double-sided adhesive tape; And a receiving member that is positioned at a portion to which the cutting blade is pressed, and that allows the release paper to be displaced in the pressing direction when the cutting blade is pressed.

  In the balance weight cutting device of the present invention, the double-sided pressure-sensitive adhesive tape is cut in a state where the other pressure-sensitive adhesive surface of the double-sided pressure-sensitive adhesive tape is protected by the release paper. That is, when the double-sided adhesive tape is cut, the other adhesive surface is protected. For this reason, contamination of the other adhesive surface of the double-sided adhesive tape is suppressed, and as a result, a decrease in the adhesive force of the balance weight to the wheel is suppressed.

It is the figure which showed the structure of the balance weight cutting device of an Example. It is the enlarged view which showed the structure of the cutting part of the balance weight cutting device of an Example. It is the figure which showed the structure of the balance weight cut | disconnected by the balance weight cutting device of an Example. It is the figure which showed the state by which the cutting blade was pressed by the balance weight with the balance weight cutting device of the Example. It is the figure which showed the state which the cutting blade is pushing in release paper with the balance weight cutting device of an Example. It is the figure which showed the structure of the balance weight sticking apparatus provided with the balance weight cutting device of an Example.

  The balance weight cutting device according to the present invention includes a balance weight in which a plurality of weight segments are arranged and pasted on one adhesive surface of a double-sided adhesive tape and the other adhesive surface is protected by a release paper. This is a balance weight cutting device for cutting between halves.

The balance weight cutting device of the present invention can manufacture a balance weight having a predetermined mass by cutting the double-sided pressure-sensitive adhesive tape of the balance weight between two adjacent weight segments.
And the balance weight cutting device of the present invention has a cutting blade and a receiving member.

  The cutting blade is a member that is pressed against the double-sided pressure-sensitive adhesive tape from one pressure-sensitive adhesive side to cut the double-sided pressure-sensitive adhesive tape. When the cutting blade cuts the double-sided adhesive tape, the balance weight can be set to a desired length (mass).

  The receiving member is a member on the other adhesive surface side of the double-sided adhesive tape, which is positioned at a portion where the cutting blade is pressed, and allows the release paper to be displaced in the pressing direction when the cutting blade is pressed. It is.

  A receiving member is located in the other adhesive surface side of a double-sided adhesive tape, Comprising: The part to which a cutting blade is pressed is located. That is, the receiving member is located on an extension line in the direction in which the cutting blade is pressed. In this position, when the cutting blade is pressed, the receiving member receives the force of the cutting blade and contributes to the cutting of the double-sided adhesive tape.

  When the cutting blade is pressed against the double-sided pressure-sensitive adhesive tape so as to cut the double-sided pressure-sensitive adhesive tape, the receiving member allows the release paper to be displaced in the pressed direction. That is, when the cutting blade is pressed, the double-sided pressure-sensitive adhesive tape is cut by the cutting blade, but the release paper is not cut by an allowed transition.

  As a result, in the balance weight cutting device of the present invention, contamination of the other adhesive surface of the double-sided adhesive tape is suppressed, and as a result, a decrease in the adhesive force of the balance weight to the wheel is suppressed.

  The configuration of the receiving member is not particularly limited as long as the receiving member can allow displacement in the direction in which the release paper is pressed when the cutting blade is pressed against the double-sided adhesive tape. In addition, it is preferable that a receiving member is a member which supports a balance weight in the state which the surface can change from the other adhesive surface side. Since the receiving member supports the balance weight from the other adhesive surface side, the pressed cutting blade can cut the double-sided adhesive tape. Examples of the receiving member include a member having a gap into which the release paper is pushed together with the pressed cutting blade, and a member that can be elastically deformed.

  The receiving member is preferably configured to return the position of the transferred release paper when the cutting blade that is pressed against the double-sided adhesive tape and cuts the double-sided adhesive tape is retracted from the pressing direction. That is, the receiving member is preferably made of an elastic member whose contact surface with the release paper is displaced in accordance with the displacement of the cutting blade when the cutting blade is pressed. Examples of the elastic member include a member made of an elastic resin, a balloon filled with a fluid (gas or liquid) inside, a member whose surface is supported by an elastic body such as a spring, and the like. In the present invention, the receiving member is more preferably a member made of an elastic resin.

  In the balance weight cutting device according to the present invention, it is preferable that the cutting blade is pressed against the adhesive tape in a state where an interval between two adjacent weight divisions is open. When the interval between two adjacent weight segments is open, when the cutting blade is pressed against the double-sided adhesive tape, the side surfaces of the two adjacent weight segments (surfaces facing each other) are cut. The blade can be prevented from hitting.

  Moreover, since the space | interval between two adjacent weight divisions will be in the state opened, the force of the direction which a surface spreads will be applied to the part of the surface which the cutting blade of a double-sided adhesive tape contacts. When the cutting blade is pressed by the force in the direction in which the surface expands, the double-sided adhesive tape is less likely to be elastically deformed, and the cutting of the double-sided adhesive tape by the cutting blade is promoted.

  In the balance weight cutting device of the present invention, it is preferable that the cutting blade is pressed in a state in which the balance weight is placed on a curved surface curved in a direction in which the interval between two adjacent weight bodies opens.

  By placing the balance weight on the curved surface, an interval between two adjacent weight bodies is opened. By pressing the cutting blade against the double-sided adhesive tape in this state, it is possible to suppress the cutting blade from hitting the side surfaces (surfaces facing each other) of the two adjacent weight segments. Moreover, the cutting | disconnection of the double-sided adhesive tape with a cutting blade is accelerated | stimulated.

  The curved surface refers to a surface that is curved such that when a balance weight is placed on the surface, the space between two adjacent weight segments is open. In other words, the surface is preferably curved (bent) along the direction in which the weight segments are arranged in the balance weight to be placed. More preferably, it is an arcuate surface along the direction in which the weight segments are arranged in the balance weight.

  In the balance weight cutting device of the present invention, it is preferable that the balance weight has a double-sided pressure-sensitive adhesive tape having a band shape, and a plurality of weight divisions are affixed along the longitudinal direction of the band shape. Since the balance weight has this long configuration, cutting can be performed continuously. That is, a balance weight having a desired mass can be manufactured continuously.

  The balance weight cutting device of the present invention preferably cuts the belt-shaped balance weight into a predetermined mass. By cutting the belt-shaped balance weight into a predetermined mass, the cut balance weight can be assembled to the wheel. Moreover, the cutting device of the present invention can be used in combination with a device (balance weight application device) that is assembled to a wheel.

  In the balance weight cutting device of the present invention, the balance weight is preferably transferred by pulling the release paper. The balance weight cutting device of the present invention can cut the double-sided adhesive tape without cutting the release paper of the balance weight. That is, the balance weight in a state where the double-sided adhesive tape is cut by the balance weight cutting device is connected by the release paper. Therefore, when the balance weight is transferred to a predetermined position and / or when the balance weight after cutting is transferred from the predetermined position, the balance weight can be transferred by pulling the release paper. When the release paper is pulled during the transfer, the balance weight (the double-sided adhesive tape and the release paper) transferred to a predetermined position is subjected to a tensile stress, and the two weights adjacent to each other are opened. Can be formed.

  When pulling the release paper, even if the release paper is protecting the double-sided adhesive tape or the release paper is in a state where the double-sided adhesive tape is peeled off after cutting the double-sided adhesive tape, The release paper may be pulled. Preferably, the release paper with the double-sided adhesive tape peeled is pulled.

That is, the balance weight cutting device of the present invention preferably has a transfer device that transfers the balance weight by pulling the release paper. It is more preferable that the transfer device pulls the release paper in a state where the weight segment is peeled off.
The balance weight cutting device of the present invention is preferably used for a balance weight sticking device.

  The balance weight cutting device of the present invention is not limited except that it has the above-described configuration. For example, the balance weight cutting device of the present invention includes a device for supplying a belt-shaped balance weight, a cutting device of the present invention for cutting the supplied belt-shaped balance weight into a predetermined mass, and affixed the cut balance weight to a wheel. For example, it can be combined with a transfer device that transfers to a sticking jig, and a sticking device that sticks to a wheel using a sticking jig to which a balance weight is transferred.

Hereinafter, the present invention will be described using examples.
As an example of the present invention, a balance weight cutting device was manufactured.

[Balance weight cutting device]
As shown in FIGS. 1 and 2, the balance weight cutting device 1 of the present embodiment includes a transfer device 2 that transfers a long balance weight BW, a guide 3 through which the long balance weight BW flows on the surface, A cutting blade device 4 having a cutting blade 40 for cutting the double-sided adhesive tape T of the balance weight BW.

  The balance weight cutting device 1 of the present embodiment cuts the balance weight BW whose configuration is shown in FIG. 3A shows a side view of the balance weight BW, and FIG. 3B shows a top view of the balance weight BW. The balance weight BW has a long band shape, and a part of the balance weight BW is shown in FIG.

  The balance weight BW includes a weight segment W manufactured to a predetermined mass, a double-sided adhesive tape T in which the weight segments W are arranged and pasted on one adhesive surface, and the other adhesive surface of the double-sided adhesive tape T. And release paper P that protects the paper. The balance weight BW is affixed to the strip-shaped long double-sided pressure-sensitive adhesive tape T with the weight body W attached at a small interval.

  The double-sided pressure-sensitive adhesive tape T is a band-shaped member having a substantially constant width made of a foamed resin whose both surfaces are adhesive surfaces. The double-sided pressure-sensitive adhesive tape T is made of a foamed resin, thereby allowing elastic deformation.

  The weight split W is made of metal (iron alloy in this embodiment) adjusted to have a predetermined mass (5 g in this embodiment), and is a member that has been subjected to rust-proof surface treatment on the surface thereof. . The weight member W of the present embodiment has one side of the double-sided pressure-sensitive adhesive tape T in a state of being separated by a small interval (predetermined predetermined interval) along the extending direction (longitudinal direction) of the belt-like double-sided pressure-sensitive adhesive tape T. Affixed to the surface. The weight body W of the present embodiment is formed so that the cross-sectional shape along the longitudinal direction has a substantially trapezoidal shape.

  The transfer device 2 is a device that transfers a long balance weight BW. The transfer device 2 is located on the downstream side in the flow direction, and transfers the balance weight BW via the release paper P. Specifically, the transfer device 2 includes a roller 20 that pulls the release paper P in the longitudinal direction. The transfer device 2 determines whether or not the balance weight BW flows and how fast it flows depending on whether or not the roller 20 rotates.

  The guide 3 is a member in which a long balance weight BW flows on the surface thereof. That is, the guide 3 is a member in which the balance weight BW pulled by the transfer device 2 flows on the surface due to the tensile stress.

  The guide 3 has a curved portion 30 that is curved in a direction in which the surface thereof is convex. When the balance weight BW flowing on the surface of the guide 3 flows through the bending portion 30, the interval between the weight divisions W of the balance weight BW is opened.

  The guide 3 has a receiving member 35 made of an elastic resin at the bending portion 30. The receiving member 35 is elastically deformed when the cutting blade 40 is pressed and allows the release paper P to be displaced in the pressed direction.

The cutting blade device 4 is a device having a cutting blade 40 for cutting the double-sided adhesive tape T of the balance weight BW. The cutting blade device 4 cuts by pressing the cutting blade 40 against the double-sided adhesive tape T. The cutting blade device 4 is arranged so that the receiving member 35 is positioned in the direction in which the cutting blade 40 is pressed.
The cutting blade device 4 is provided so as to be able to control the operation of the cutting blade 40 (the amount of operation when the cutting blade 40 is pressed and retracted).

(Operation of balance weight cutting device)
The operation of the balance weight cutting device 1 of the present embodiment will be specifically described.
First, the release paper P of the balance weight BW is set on the roller 20 of the transfer device 2 and the transfer device 2 is operated.

  By the operation of the transfer device 2, the balance weight BW is transferred to a predetermined position on the surface of the guide 3. The predetermined position is a position determined in advance, and is a position where a space between the weight divisions W of the balance weight BW is arranged on an extension line in a direction in which the cutting blade 40 is pressed. The transferred balance weight BW is placed on the surface of the bending portion 30. At this time, the balance weight BW is in a state where the interval between the weight bodies W is open.

In the balance weight BW in a state where the intervals between the weight bodies W are opened, a force in the direction in which the surface is spread is applied to the portion of the surface where the cutting blade 40 of the double-sided adhesive tape T hits. When the cutting blade 40 is pressed by the force in the direction in which the surface expands, the double-sided adhesive tape T is less likely to be elastically deformed, and the cutting of the double-sided adhesive tape T by the cutting blade 40 is promoted.
And the cutting blade apparatus 4 act | operates and the cutting blade 40 is pressed on the double-sided adhesive tape T between the balance weights BW (FIG. 4).

  The double-sided pressure-sensitive adhesive tape T (and the release paper P) against which the cutting blade 40 is pressed has the receiving member 35 positioned on the back side thereof. That is, the double-sided pressure-sensitive adhesive tape T (and the release paper P) is supported by the receiving member 35. For this reason, when the pressed cutting blade 40 bites into the double-sided adhesive tape T and the pressing amount of the cutting blade 40 increases, shearing stress is applied and the cutting blade 40 is cut.

The cutting blade 40 that cuts the double-sided adhesive tape T contacts the release paper P. The release paper P that has come into contact with the cutting blade 40 changes in the pressed direction together with the pressed cutting blade 40. That is, the release paper P is not cut by the cutting blade 40 (FIG. 5).
When the cutting blade 40 is pressed to a predetermined pressing amount, the cutting blade 40 moves backward and does not come into contact with the balance weight BW.

Then, the transfer device 2 is operated again, and the balance weight BW that has been cut and the balance weight BW that is to be newly cut are transferred to a predetermined position. Again, the double-sided adhesive tape T is cut by the cutting blade device 4.
As described above, in the balance weight cutting device 1 of this example, only the double-sided adhesive tape T was cut from the belt-shaped balance weight BW.

  As described above, the balance weight cutting apparatus 1 of the present embodiment cuts the double-sided pressure-sensitive adhesive tape T with the other pressure-sensitive adhesive surface of the double-sided pressure-sensitive adhesive tape T protected by the release paper P. That is, when the double-sided adhesive tape T is cut, the other adhesive surface is protected. For this reason, contamination of the other adhesive surface of the double-sided adhesive tape T was suppressed, and as a result, a decrease in the adhesive force of the balance weight BW to the wheel was suppressed.

  Furthermore, the balance weight cutting apparatus 1 of the present embodiment cuts the double-sided adhesive tape T without cutting the release paper P. That is, the transfer of the balance weight BW by the transfer device 2 is not interrupted. As a result, the balance weight cutting device 1 of the present embodiment can continuously cut the balance weight BW.

(Deformation)
In the above-described embodiment, the balance weight BW is formed such that the weight split body W has a substantially trapezoidal cross-sectional shape along the longitudinal direction. However, the balance weight BW is not limited to this shape. That is, it may be a shape such as a square cross-section, a shape of a abacus with substantially acute angles at both ends, and a substantially bowl-shaped shape with both ends having an R shape.

[Balance weight application device]
The balance weight cutting device 1 of the above embodiment can be used for the balance weight sticking device 5. The balance weight sticking device 5 of the present embodiment is shown in FIG.

  The balance weight sticking device 5 of this embodiment includes a balance weight supply unit 50, a balance weight connection unit 51, a balance weight cutting unit 52, a release paper cutting unit 53, and a sticking jig transfer unit 55.

  The balance weight cutting part 52 is formed by the balance weight cutting device 1 of the above-described embodiment. The balance weight cutting part 52 cuts only the double-sided adhesive tape T of the balance weight BW, as described above.

  The balance weight supply unit 50 continuously supplies the belt-shaped balance weight BW. In the present embodiment, the balance weight supply unit 50 is used in a state where the belt-like balance weight BW is stored in the magazine. In this embodiment, when a plurality of magazines are prepared and the balance weight BW in one magazine is exhausted, the magazine is switched to another magazine.

  The balance weight connection unit 51 detects that there is no balance weight BW in one magazine and connects the balance weight BW stored in another switched magazine to the previous balance weight BW.

The sticking jig transfer part 55 transfers the balance weight BW cut by the balance weight cutting part 52 to the sticking jig 550 for sticking to the wheel. The sticking jig transfer part 55 exposes the other adhesive surface to the surface of the sticking jig 550 while peeling off the release paper P from the balance weight BW having only the double-sided adhesive tape T cut by the balance weight cutting part 52. Support in the state.
The sticking jig 550 on which the balance weight BW is supported is pressed against the inner peripheral surface of the wheel, and the balance weight BW is stuck on the wheel.

  The release paper cutting unit 53 cuts the release paper P peeled from the balance weight BW into a predetermined length. By cutting the release paper P, the long belt-like release paper P is cut into small pieces.

(Operation of balance weight application device)
The balance weight sticking device 5 of this embodiment first pulls out the balance weight BW stored in the magazine of the balance weight supply unit 50 and sets the release paper P on the roller 20 of the transfer device 2.

The transfer device 2 of the balance weight cutting unit 52 is operated to transfer the balance weight BW so that the space between the weight divisions 2 of the balance weight BW is at a predetermined position. At this time, the cut balance weight BW (the balance weight on the downstream side in the flow direction with respect to the cutting position of the double-sided adhesive tape T) includes a predetermined number of weight divisions W (having a predetermined total mass). )
And the cutting blade apparatus 4 of the balance weight cutting | disconnection part 52 act | operates, and the cutting blade 40 cut | disconnects only the double-sided adhesive tape T. FIG.
When the cutting blade 40 is retracted to a position where it does not contact the balance weight BW, the transfer device 2 is actuated again.

  The cut balance weight BW is transferred to the sticking jig transfer portion 55 and supported by the sticking jig 550. In this embodiment, when the balance weight BW is transferred to the sticking jig 550, the release paper P is peeled from the balance weight BW at the same time.

Further, when the transfer device 2 is actuated again, the belt-like balance weight BW is transferred, and the unbalanced balance weight BW (the balance weight on the upstream side in the flow direction with respect to the cutting position of the double-sided adhesive tape T) is predetermined cut. Transferred to position. And the balance weight BW of a new predetermined mass is cut | disconnected similarly to the previous.
These operations are repeated, and the balance weight BW can be assembled to the wheel continuously.

  When the balance weight sticking device 5 of this embodiment detects that the balance weight BW in one magazine is exhausted, it switches to another magazine, and the tip of the balance weight BW stored in the magazine is moved to the previous balance weight BW. The end is connected by a balance weight connection unit 51. Thereby, the balance weight BW can be continuously supplied.

  By the above, the balance weight sticking apparatus 5 of a present Example can supply the balance weight BW continuously, and can assemble | attach the balance weight BW of predetermined mass to a wheel continuously.

1: Balance weight cutting device 2: Transfer device 20: Roller 3: Guide 30: Curved portion 35: Receiving member 4: Cutting blade device 40: Cutting blade 5: Balance weight applying device 50: Balance weight supply unit 51: Balance weight connection Section 52: Balance weight cutting section 53: Release paper cutting section 55: Pasting jig transfer section BW: Balance weight W: Weight division T: Double-sided adhesive tape P: Release paper

Claims (7)

A balance in which a plurality of weight segments are affixed side by side on one adhesive surface of a double-sided adhesive tape and the other adhesive surface is protected with a release paper, and the balance weight is cut between two adjacent weight segments. A weight cutting device,
A cutting blade that is pressed against the double-sided pressure-sensitive adhesive tape from the one adhesive surface side to cut the double-sided pressure-sensitive adhesive tape;
Located on the other adhesive surface side of the double-sided adhesive tape, where the cutting blade is pressed, allowing the release paper to be displaced in the pressed direction when the cutting blade is pressed. A receiving member;
A balance weight cutting device comprising:   The balance weight cutting device according to claim 1, wherein the receiving member includes an elastic member whose contact surface with the release paper is displaced in accordance with the displacement of the cutting blade when the cutting blade is pressed.   The balance weight cutting device according to any one of claims 1 to 2, wherein the cutting blade is pressed against the adhesive tape in a state where an interval between two adjacent weight divisions is opened.   4. The cutting blade according to claim 1, wherein the cutting blade is pressed in a state where the balance weight is placed on a curved surface curved in a direction in which a gap between two adjacent weight segments opens. The balance weight cutting device described.   5. The balance weight according to claim 1, wherein the double-sided pressure-sensitive adhesive tape has a band shape, and a plurality of the weight segments are stuck side by side along the longitudinal direction of the band shape. Balance weight cutting device.   The balance weight cutting device according to any one of claims 1 to 5, wherein the belt-shaped balance weight is cut into a predetermined mass.   The balance weight cutting device according to any one of claims 1 to 6, which is used in a balance weight sticking device.