Coating removing device

Abstract

To provide a coating removal device capable of removing a coating of a coating removal part in a coated bus bar while suppressing a working time.SOLUTION: The coating removing device 1 is a mechanism part for forming a cut over the whole breadth of the width-directional side B1 of the coated bus bar side B12 at least on a front-back boundary of a boundary between a coating removed part side B1a and a coating left part side B1b in an insulating coating side B1 of the coated bus bar side D13. The apparatus includes a cut forming mechanism 12 for forming a cut B1c at a front-back boundary using at least one cutting blade 121, and a stripping mechanism 13 for stripping the front-back covering portion B1c from the front and back surfaces by sliding a front-back removing member 131 for removing the front-back covering portion B1a in a widthwise direction B12, the stripping mechanism 13 being a mechanism part for removing the front-back covering portion B12a covering at least the front and back surfaces of the insulating covering B12a in the coating-removed portion D13 after the cut B12a is formed.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a coating removal device that removes coating from a portion of a coated bus bar in the longitudinal direction. [Background technology]

[0002] Conventionally, there is known a coating removal device that removes the coating from a portion of a coated busbar in the longitudinal direction for connection to other components, etc. (see, for example, Patent Document 1). The coating removal device described in Patent Document 1 removes the coating by burning it with a laser. Furthermore, this coating removal device is configured to form a notch at the boundary between the coating removal portion and the coating remaining portion, so that the remaining coating portion is not affected when the coating in the coating removal portion is burned with a laser. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2020-072593 Summary of the Invention [Problem to be solved by the invention]

[0004] However, with the above-mentioned type of coating removal device that removes the coating by burning it with a laser, the operation time tends to be long because it takes time to remove the coating with the laser.

[0005] Therefore, in view of the above-mentioned problems, the present invention aims to provide a coating removal device that can remove the coating from the coating removal portion of a coated bus bar while reducing the working time. [Means for solving the problem]

[0006] In order to solve the above-mentioned problems, the coating removal device includes a covered busbar having a strip-shaped busbar body coated with an insulating coating, and a coating removal portion defining a longitudinal portion of the covered busbar and a portion other than the coating removal portion defining a coating-retaining portion. The covering removal portion defines a notch across the entire width of the covered busbar in the width direction of the covered busbar at a boundary between the coating removal portion and the coating-retaining portion in the insulating coating, at least along a front-back boundary along a front and back surface of the busbar body, the notch forming mechanism using at least one notch forming blade to form the notch at the front-back boundary. The covering removal portion includes a stripping mechanism that removes front-back coating portions that cover at least the front and back surfaces of the insulating coating in the covering removal portion after the notch has been formed, and that slides a front-back removal member for removing the front-back coating portions in the width direction to strip the front-back coating portions from the front and back surfaces. [Effects of the Invention]

[0007] According to the above-described coating removal device, the coating of the coating removal portion of the coated bus bar can be removed in a reduced working time. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is an overall perspective view showing a sheath removal device according to an embodiment; [Figure 2] 2 is a diagram showing a part of the incision forming mechanism and the stripping mechanism shown in FIG. 1 together with the coated bus bar from which the coating is to be removed. FIG. [Figure 3] 3 is a diagram illustrating how front and back incisions are formed in the sheath removing device shown in FIG. 1 using a perspective view of three incision blades and a incision blade holding mechanism shown in FIG. 2.

[0023] FIG. [Figure 4] 3 is a diagram illustrating how side cuts are formed in the sheath removing device shown in FIG. 1 using a perspective view of the three cutting blades and cutting blade holding mechanism shown in FIG. 2. FIG. [Figure 5]3 is a diagram illustrating the removal of front and back coating portions in the coating removal device shown in FIG. 1 using a perspective view of a front and back removing member and a side removing member shown in FIG. 2. FIG. [Figure 6] 3 is a diagram illustrating the removal of a pair of side surface covering portions in the covering removal device shown in FIG. 1, using a perspective view of the front and back removing member and the side surface removing member shown in FIG. 2. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0009] An embodiment of the coating removal device will be described below.

[0010] FIG. 1 is an overall perspective view showing a coating removal device according to an embodiment, and FIG. 2 is a diagram showing a part of the incision forming mechanism and the stripping mechanism shown in FIG. 1 together with a coated bus bar from which the coating is to be removed.

[0011] The coating removal device 1 of this embodiment is a device that removes the insulating coating B12 from a coating removal portion B1a, which is a portion on one end side in the longitudinal direction D11 of a coated busbar B1, in which a busbar body B11 formed in a linear strip shape is coated with an insulating coating B12. The coating removal device 1 includes a base plate 11, a notch forming mechanism 12, and a stripping mechanism 13.

[0012] The base plate 11 is a rectangular plate that is installed at a predetermined installation location, and on this base plate 11, the incision forming mechanism 12, the stripping mechanism 13, a holder for the coated bus bar B1 from which the coating is to be removed, and the like are mounted.

[0013] The incision forming mechanism 12 is a mechanism that forms incisions B1c for coating removal at the boundary between the coating-removed portion B1a in the insulating coating B12 of the covered busbar B1 and the remaining coating portion B1b other than the coating-removed portion B1a. In this embodiment, the incision forming mechanism 12 forms incisions B1c around the boundary between the coating-removed portion B1a and the coating-remaining portion B1b, over the entire circumference in the circumferential direction D12 of the covered busbar B1. These incisions B1c around the entire circumference consist of a pair of front and back incisions B1c-1 and a pair of side incisions B1c-2. The front and back incisions B1c-1 are formed at the front and back boundary along the front and back surfaces of the busbar main body B11, over the entire width in the width direction D13 of the covered busbar B1. The side incisions B1c-2 are formed at a pair of side boundary along a pair of side surfaces of the busbar main body B11, over the entire length in the thickness direction D14 of the covered busbar B1. The incision forming mechanism 12 forms a circumferential incision B1c consisting of a pair of front and back incisions B1c-1 and a pair of side incisions B1c-2 using at least one (three in this embodiment) incision blade 121. This incision forming mechanism 12 includes three incision blades 121 consisting of a first incision blade 121a, a second incision blade 121b, and a third incision blade 121c, a incision blade holding mechanism 122, a front and back incision blade sliding mechanism 123, and a side incision blade sliding mechanism 124.

[0014] The cutting blades 121 are disk-shaped blades for forming the incisions. Of the three cutting blades 121, a first cutting blade 121a and a second cutting blade 121b form a pair of front and back incisions B1c-1. In the thickness direction D14 of the covered busbar B1, the second cutting blade 121b is aligned with the first cutting blade 121a with a gap G11 therebetween, which corresponds to the thickness of the busbar main body B11. In addition, the first cutting blade 121a and the third cutting blade 121c form a pair of side incisions B1c-2. In the width direction D13, the third cutting blade 121c is aligned with the first cutting blade 121a with a gap G12 therebetween, which corresponds to the width of the busbar main body B11.

[0015] The cutting blade holding mechanism 122 is a member that holds the three cutting blades 121. That is, the cutting blade holding mechanism 122 holds the first cutting blade 121a and holds the second cutting blade 121b side by side with the first cutting blade 121a across the gap G11 in the thickness direction D14. The cutting blade holding mechanism 122 also holds the third cutting blade 121c side by side with the first cutting blade 121a across the gap G12 in the width direction D13. The cutting blade holding mechanism 122 supports the first cutting blade 121a, the second cutting blade 121b, and the third cutting blade 121c so that they can rotate about three rotation axes X11 that are perpendicular to both the thickness direction D14 and the width direction D13 and that pass through the centers of the blades.

[0016] The front and back cutting blade sliding mechanism 123 slides the first cutting blade 121a and the second cutting blade 121b in the width direction D13 so as to trace the front / back boundary, thereby forming a pair of front and back incisions B1c-1 at the front / back boundary across the entire width in the width direction D13. In this embodiment, the front and back cutting blade sliding mechanism 123 slides the cutting blade holding mechanism 122 in the width direction D13, thereby sliding the first cutting blade 121a and the second cutting blade 121b in the width direction D13. This front and back cutting blade sliding mechanism 123 is a motor-driven mechanism that holds the cutting blade holding mechanism 122 and slides it in the width direction D13. Note that, although a motor-driven mechanism is exemplified here, the drive mechanism of this front and back cutting blade sliding mechanism 123 is not limited to being motor-driven.

[0017] The side cutting blade sliding mechanism 124 slides the first cutting blade 121a and the third cutting blade 121c in the thickness direction D14 so as to trace the pair of side boundary lines, thereby forming a pair of side incisions B1c-2 at the pair of side boundary lines over the entire length in the thickness direction D14. In this embodiment, the side cutting blade sliding mechanism 124 slides the cutting blade holding mechanism 122 in the thickness direction D14, thereby sliding the first cutting blade 121a and the third cutting blade 121c in the thickness direction D14. This side cutting blade sliding mechanism 124 is held by the front / back cutting blade sliding mechanism 123 and is a motor-driven mechanism that holds the cutting blade holding mechanism 122 and slides it in the thickness direction D14. The front / back cutting blade sliding mechanism 123 holds the cutting blade holding mechanism 122 via this side cutting blade sliding mechanism 124 and slides it in the width direction D13. Although a motor-driven mechanism is shown here as an example, the drive mechanism in the side cutting blade slide mechanism 124 is not limited to a motor-driven mechanism.

[0018] The stripping mechanism 13 is a mechanism that strips the insulating coating B12 at the coating removal portion B1a from the busbar body B11 after the incisions B1c are formed. The stripping mechanism 13 in this embodiment includes a front and back removing member 131, a side removing member 132, and a stripping slide mechanism 133.

[0019] The front-back removal member 131 is a member for removing the front-back coating portion B12a covering the front and back surfaces of the busbar body B11. This front-back removal member 131 has a pair of front-back removal plate members 131a, each formed in a rectangular plate shape, arranged facing each other with a gap G13 corresponding to the plate thickness of the busbar body B11 in the thickness direction D14 of the covered busbar B1. The front-back removal member 131 peels the front-back coating portion B12a from the front and back surfaces of the busbar body B11 at a front-back peeling edge 131a-1, which is one edge of each plate member in the width direction D13. The front-back peeling edge 131a-1 is a corner edge of the front-back removal plate member 131a close to the front and back surfaces of the busbar body B11. Furthermore, the front-back removal member 131 is configured to have an open U-shape on the side of the front-back peeling edge 131a-1 when viewed from the side in the longitudinal direction D11 of the busbar body B11. That is, the opposite side of the pair of front and back removal plate members 131a in the width direction D13 from the front and back peeling edge 131a-1 is connected in the thickness direction D14 by the front and back removal connecting block 131b, and this connection forms the U-shape in the side view described above.

[0020] The side surface removing member 132 is a member for removing the side surface covering portions B12b that cover a pair of side surfaces of the busbar main body B11. The side surface removing member 132 has a pair of side surface removing plate members 132a, each formed in a rectangular plate shape, arranged facing each other with a gap G14 corresponding to the plate width of the busbar main body B11 in the width direction D13 of the covered busbar B1. The side surface removing member 132 peels the side surface covering portions B12b from the side surfaces of the busbar main body B11 at a side surface peeling edge 132a-1, which is one edge of each plate member in the thickness direction D14. The side surface peeling edge 132a-1 is a corner edge of the side surface removing plate member 132a that is close to the side surface of the busbar main body B11. Furthermore, the side surface removing member 132 is configured to have an open U-shape on the side surface peeling edge 132a-1 side when viewed from the side in the longitudinal direction D11 of the busbar main body B11. That is, the side opposite the side scraping edge 132a-1 in the thickness direction D14 of the pair of side removal plate members 132a is connected in the width direction D13 by the side removal connecting block 132b, and this connection forms the U-shape in the side view described above.

[0021] The peeling slide mechanism 133 is a mechanical part that peels off the front and back coating portions B12a from the front and back surfaces of the busbar body B11 by sliding the front and back removal member 131 in the width direction D13. Furthermore, the peeling slide mechanism 133 also peels off the side surface coating portions B12b from a pair of side surfaces of the busbar body B11 by sliding the side surface removal member 132 in the thickness direction D14. The peeling slide mechanism 133 includes a front and back removal slide mechanism 133a that slides the front and back removal member 131 in the width direction D13 and a side surface removal slide mechanism 133b that slides the side surface removal member 132 in the thickness direction D14. The front and back removal slide mechanism 133a and the side surface removal slide mechanism 133b are motor-driven mechanisms that slide the front and back removal member 131 and the side surface removal member 132. Although a motor-driven mechanism is exemplified here, the drive mechanisms in the front and back removal slide mechanism 133a and the side removal slide mechanism 133b are not limited to motor-driven mechanisms.

[0022] Next, a series of operations performed by the coating removal device 1 shown in Fig. 1 until the insulating coating B12 of the coating removal portion B1a of the coated busbar B1 is stripped from the busbar body B11 will be described. In this series of operations, first, a notch B1c for coating removal is formed at the boundary between the coating removal portion B1a and the coating-remaining portion B1b. This notch formation is performed in two stages: forming a front and back notch B1c-1 and forming a side notch B1c-2.

[0023] FIG. 3 is a diagram illustrating how front and back incisions are formed in the sheath removing device shown in FIG. 1, using a perspective view of the three incision blades and the incision blade holding mechanism shown in FIG.

[0024] 3, in forming the front and back incisions B1c-1, a cutting blade holding mechanism 122 that holds three cutting blades 121 is slid in the width direction D13 of the covered bus bar B1 by a motor-driven front and back incision blade sliding mechanism 123 shown in FIG. 1. Specifically, the cutting blade holding mechanism 122 is slid in a front and back incision direction D131 in which the first cutting blade 121a and the second cutting blade 121b cross the front and back boundary between the coating-removed portion B1a and the coating-retaining portion B1b in the width direction D13. As a result of this sliding, the first cutting blade 121a and the second cutting blade 121b, which are disc-shaped blades, rotate and bite their peripheral blades into the insulating coating B12, progressing in the front and back incision direction D131 while crossing the front and back boundary between the coating-removed portion B1a and the coating-retaining portion B1b. As the first cutting blade 121a and the second cutting blade 121b move in this manner, a pair of front and back notches B1c-1 are formed. After the front and back notches B1c-1 are formed, the cutting blade holding mechanism 122 moves from the state shown in Figure 3 in which it is positioned in this position after formation to the formation of the next side notch B1c-2.

[0025] FIG. 4 is a diagram illustrating how side cuts are formed in the sheath removal device shown in FIG. 1, using a perspective view of the three cutting blades and cutting blade holding mechanism shown in FIG.

[0026] 4, to form the side incisions B1c-2, the cutting blade holding mechanism 122 holding the three cutting blades 121 is slid in the thickness direction D14 of the coated bus bar B1 by the motor-driven side cutting blade sliding mechanism 124 shown in FIG. 1. Specifically, the cutting blade holding mechanism 122 is slid in a side cutting direction D141 in which the first cutting blade 121a and the third cutting blade 121c cross a pair of side boundaries between the coating-removed portion B1a and the coating-retaining portion B1b in the thickness direction D14. As a result of this sliding, the first cutting blade 121a and the third cutting blade 121c, which are disc-shaped blades, rotate and bite their peripheral blades into the insulating coating B12, advancing in the side cutting direction D141 while crossing the pair of side boundaries between the coating-removed portion B1a and the coating-retaining portion B1b. As the first cutting blade 121a and the third cutting blade 121c move in this manner, a pair of side cuts B1c-2 are formed. The formation of these side cuts B1c-2 completes a cut B1c that circles the boundary between the coating-removed portion B1a and the coating-retaining portion B1b. After the cut B1c is completed, the cutting blade holding mechanism 122 slides in the opposite directions of the side cut direction D141 and the front / back cut direction D131 to return to the cut initial position P11 shown in FIG. 1 . The process then proceeds to the removal of the insulating coating B12 by the stripping mechanism 13. In this embodiment, first, the front / back coating portions B12a that cover the front and back surfaces of the busbar body B11 are removed from the insulating coating B12 in the coating-removed portion B1a after the cuts B1c are formed.

[0027] 5 is a diagram showing the removal of the front and back coating portions in the coating removal device shown in FIG. 1, using a perspective view of the front and back removing member and the side removing member shown in FIG.

[0028] 5, to remove the front and back coating portion B12a, the front and back removal member 131 is used out of the front and back removal member 131 and the side surface removal member 132. That is, while the side surface removal member 132 remains stationary, the front and back removal member 131 is slid in the width direction D13 of the coated busbar B1 by the motor drive of the front and back removal slide mechanism 133a shown in Fig. 1. Specifically, the front and back removal member 131 is slid in the front and back removal direction D132 in the width direction D13 in which the front and back peeling edges 131a-1 of the pair of front and back removal plate members 131a cross the front and back surfaces of the busbar main body B11 in the coating removal portion B1a. As a result of this sliding, the front and back removal member 131, which is U-shaped in side view, advances inward on the busbar body B11 of the coating removal portion B1a, and removes the pair of front and back coating portions B12a from the front and back surfaces of the busbar body B11 using the front and back peeling edges 131a-1 of the pair of front and back removal plate members 131a. After removal, the front and back removal member 131 slides in the opposite direction of the front and back removal direction D132 and returns to the front and back removal initial position P12 shown in Figures 1 and 2, where it moves on to removing the pair of side surface coating portions B12b using the next side surface removal member 132.

[0029] 6 is a diagram showing the removal of a pair of side covering portions in the covering removal device shown in FIG. 1, using a perspective view of the front and back removing member and the side removing member shown in FIG. 2.

[0030] 6, to remove the pair of side surface covering portions B12b, the side surface removing member 132 of the front and back removing member 131 and the side surface removing member 132 is used. That is, while the front and back removing member 131 remains stationary, the side surface removing member 132 is slid in the thickness direction D14 of the covered busbar B1 by the motor drive of the side surface removing slide mechanism 133b shown in FIG. 1. Specifically, the side surface removing member 132 is slid in the thickness direction D14 in a side surface removing direction D142 in which the side surface peeling edges 132a-1 of the pair of side surface removing plate members 132a cross the pair of side surfaces of the busbar main body B11 in the covering removal portions B1a. As a result of this sliding, the side surface removing member 132, which is U-shaped in side view, advances inward on the busbar body B11 of the coating removal portion B1a and removes a pair of side surface covering portions B12b from the side surface using the side surface stripping edges 132a-1 of the pair of side surface removing plate members 132a. Removal of the pair of side surface covering portions B12b removes the entire periphery of the insulating coating B12 covering the busbar body B11 of the coating removal portion B1a, exposing that portion of the busbar body B11. After removing the pair of side surface covering portions B12b, the side surface removing member 132 slides in the opposite direction of the side surface removing direction D142 and returns to the side surface removal initial position P13 shown in FIGS. 1 and 2. Returning the side surface removing member 132 to the side surface removal initial position P13 completes the series of operations for removing the insulating coating B12 from the coating removal portion B1a in the coating removal device 1 shown in FIG. 1.

[0031] According to the sheath removal device 1 of the embodiment described above, after the front / back notch B1c-1 is formed at least at the front / back boundary between the sheath removal portion B1a and the sheath-retention portion B1b, the insulating sheath B12 of the sheath removal portion B1a is removed as follows. That is, the front / back sheathed portion B12a of the insulating sheath B12 of the sheath removal portion B1a is stripped from the front and back surfaces of the busbar body B11 by sliding the front / back removal member 131. This stripping exposes a minimum required area of ​​the front and back surfaces of the busbar body B11 for connection to other components. Furthermore, stripping the front / back sheathed portion B12a by sliding the front / back removal member 131 requires less work time than removing the sheath by, for example, burning it with a laser. As such, the sheath removal device 1 of the embodiment can reduce the work time required to remove the sheath from the sheath removal portion B1a of the coated busbar B1. Furthermore, the mechanism for peeling off the coating by sliding the front and back removal member 131 can reduce equipment costs compared to a mechanism for burning off the coating with a laser, for example.

[0032] In this embodiment, the incision forming mechanism 12 forms not only the front and back incisions B1c-1 but also a pair of side incisions B1c-2, thereby forming the incisions B1c along the entire circumference of the covered busbar B1 in the circumferential direction D12. The side incisions B1c-2 are formed using at least one incision blade 121 (two in this embodiment). The stripping mechanism 13 removes the pair of side surface covering portions B12b along with the front and back covering portions B12a. The side surface covering portions B12b are removed by sliding the side surface removing member 132 in the thickness direction D14. This configuration removes the insulating coating B12 from the busbar body B11 from the pair of side surfaces in addition to the wide area of ​​the front and back surfaces required for connection to other components. In other words, the insulating coating B12 from the covering removal portion B1a is completely removed along the entire circumference in the circumferential direction D12, which is preferable from the perspective of reliable connection to other components.

[0033] In this embodiment, the incision forming mechanism 12 includes three cutting blades 121: a first cutting blade 121a, a second cutting blade 121b, and a third cutting blade 121c. The incision forming mechanism 12 also includes a front / back cutting blade sliding mechanism 123 and a side cutting blade sliding mechanism 124. The front / back cutting blade sliding mechanism 123 forms the front / back incision B1c-1 by sliding the first cutting blade 121a and the second cutting blade 121b in the width direction D13. The side cutting blade sliding mechanism 124 forms the side incision B1c-2 by sliding the first cutting blade 121a and the third cutting blade 121c in the thickness direction D14. According to this configuration, the first cutting blade 121a and the second cutting blade 121b slide in the width direction D13, and the first cutting blade 121a and the third cutting blade 121c slide in the thickness direction D14, thereby forming the incision B1c around the entire circumference. This type of incision formation takes less time and requires a simpler mechanical configuration than, for example, forming an incision by moving a single cutting blade around the entire circumference along the boundary between the coating-removed portion B1a and the coating-retained portion B1b. In other words, according to the above configuration, the work time required for coating removal can be further reduced, and the simplicity of the mechanical configuration also allows for further reduction in equipment costs.

[0034] In this embodiment, the incision forming mechanism 12 further includes a cutting blade holding mechanism 122 that holds the first cutting blade 121a, the second cutting blade 121b, and the third cutting blade 121c. The front / back cutting blade sliding mechanism 123 slides the cutting blade holding mechanism 122 in the width direction D13, thereby sliding the first cutting blade 121a and the second cutting blade 121b in the width direction D13. The side cutting blade sliding mechanism 124 also slides the cutting blade holding mechanism 122 in the thickness direction D14, thereby sliding the first cutting blade 121a and the third cutting blade 121c in the thickness direction D14. With this configuration, sliding the cutting blade holding mechanism 122 can simultaneously slide the first cutting blade 121a and the second cutting blade 121b and the first cutting blade 121a and the third cutting blade 121c. This type of sliding can further reduce the work time required to form the incisions, i.e., the work time required to remove the coating, compared to, for example, a mechanism in which three cutting blades slide individually, and the simplicity of the mechanism configuration can also further reduce equipment costs.

[0035] In this embodiment, the cutting blade 121 is a disc-shaped blade, and the cutting blade holding mechanism 122 supports each of the first cutting blade 121a, the second cutting blade 121b, and the third cutting blade 121c so that they can rotate about the rotation axis X11. With this configuration, the resistance from the insulating coating B12 can be reduced and the incisions can be formed more smoothly than when, for example, the cutting edge of a knife-shaped cutting blade is thrust into the insulating coating B12 to form the incisions.

[0036] In this embodiment, the front and back removal member 131 peels off the front and back coating portion B12a with the front and back peeling edges 131a-1 of the pair of front and back removal plate members 131a. The side removal member 132 peels off the side coating portion B12b with the side peeling edges 132a-1 of the pair of side removal plate members 132a. This configuration is preferable because it effectively transmits the removal force of the insulating coating B12 caused by the sliding of each member from the front and back peeling edges 131a-1 and the side peeling edges 132a-1 to the front and back coating portion B12a and the side coating portion B12b.

[0037] In this embodiment, the pair of front and back removal plate members 131a are connected in the thickness direction D14 at the ends opposite the front and back peeling edges 131a-1 so that the front and back removal member 131 has a U-shape in side view. The pair of side surface removal plate members 132a are connected in the width direction D13 at the ends opposite the side surface peeling edges 132a-1 so that the side surface removal member 132 also has a U-shape in side view. The peeling mechanism 13 includes a peeling slide mechanism 133 that peels off the front and back covering portions B12a collectively by sliding the front and back removal member 131 and peels off the side surface covering portions B12b collectively by sliding the side surface removal member 132. With this configuration, sliding the U-shaped front and back removal member 131 and side surface removal member 132 can further reduce the work time required for coating removal compared to, for example, sliding the front and back removal plate members 131a and side surface removal plate members 132a individually. Furthermore, the above configuration is simpler than the configuration of a mechanism that individually slides the pair of front and back removing plate members 131a and the pair of side removing plate members 132a, and therefore equipment costs can be further reduced.

[0038] The above-described embodiment merely shows a typical form of the coating removal device, and the coating removal device is not limited to this but can be implemented in various modifications.

[0039] For example, in the above-described embodiment, the sheath removal device 1 is illustrated as an example of a sheath removal device, which removes the insulating sheath B12 from a portion of one end of a busbar body B11 formed in a straight strip shape, in the longitudinal direction D11, as the sheath removal portion B1a. However, the sheath removal device is not limited to this. The covered busbar to be removed may be a strip-shaped busbar body coated with an insulating sheath, or a busbar body bent in the longitudinal direction and coated with an insulating sheath. Furthermore, the sheath removal portion may be a midpoint portion of the longitudinal direction, as long as it is a portion of the longitudinal direction. In this case, notches are formed at both ends of the midpoint portion in the longitudinal direction, and the insulating sheath is removed between the notches. As such, the sheath removal device can set any shape and position of the strip shape of the covered busbar to be removed and any position of the sheath removal portion in the longitudinal direction.

[0040] Furthermore, in the above-described embodiment, as an example of a coating removal device, a coating removal device 1 is illustrated in which a notch forming mechanism 12, a stripping mechanism 13, a holder for a coated bus bar B1 from which coating is to be removed, and the like are mounted on a rectangular base plate 11. However, the coating removal device is not limited to this, and any other specific device configuration is acceptable as long as it includes a notch forming mechanism and a stripping mechanism.

[0041] Furthermore, in the above-described embodiment, the coating removal device 1 is exemplified as an example of a coating removal device in which the incision forming mechanism 12 also forms a pair of side incisions B1c-2 and the stripping mechanism 13 also removes a pair of side coating portions B12b. However, the coating removal device is not limited to this, and the incision forming mechanism may form only front and back incisions and the stripping mechanism may remove only the front and back coating portions, leaving the pair of side coating portions. However, as described above, forming the front and back incisions B1c-1 and the side incisions B1c-2 and removing the front and back coating portions B12a and the side coating portion B12b is preferable because it removes the insulating coating B12 from the coating removal portion B1a all around.

[0042] Furthermore, in the above-described embodiment, an incision forming mechanism is exemplified by the incision forming mechanism 12 including three cutting blades 121, a front / back cutting blade sliding mechanism 123, and a side cutting blade sliding mechanism 124. However, the incision forming mechanism is not limited to this, and may be, for example, a mechanism that forms an incision by moving a single cutting blade all the way around along the boundary between the coating-removed portion and the coating-remaining portion. However, as described above, by forming the incision B1c by appropriately using the three cutting blades 121 with the front / back cutting blade sliding mechanism 123 and the side cutting blade sliding mechanism 124, the working time and equipment costs related to coating removal can be further reduced.

[0043] Furthermore, in the above-described embodiment, as an example of the incision forming mechanism, the incision forming mechanism 12 that forms the incision B1c by sliding the cutting blades 121 via the cutting blade holding mechanism 122 that holds the three cutting blades 121 is exemplified. However, the incision forming mechanism is not limited to this, and may be, for example, a mechanism that slides the three cutting blades one by one individually. However, as described above, by sliding the cutting blades 121 via the cutting blade holding mechanism 122, the work time and equipment costs related to coating removal can be further reduced.

[0044] Furthermore, in the above-described embodiment, as an example of an incision forming mechanism, the incision forming mechanism 12 is exemplified, in which the incision blade holding mechanism 122 rotatably supports three incision blades 121, each of which is a disc-shaped blade. However, the incision forming mechanism is not limited to this, and may be, for example, a mechanism in which the cutting edge of a knife-shaped incision blade is thrust into the insulating coating to form an incision. However, as described above, by rotatably supporting the three incision blades 121, which are disc-shaped blades, on the incision blade holding mechanism 122, resistance from the insulating coating B12 can be reduced, thereby enabling smooth incision formation.

[0045] In the above-described embodiment, the stripping mechanism 13 is exemplified as an example of a stripping mechanism, which performs stripping using the front and back stripping edges 131a-1 of the front and back removal plate member 131a and the side surface stripping edges 132a-1 of the side surface removal plate member 132a. However, the stripping mechanism is not limited to this, and the specific manner in which the front and back removal member and the side surface removal member strip the insulating coating is not limited to this. However, as described above, the configuration in which stripping is performed using the edge of the plate member allows the removal force of the insulating coating B12 to be effectively transmitted to the insulating coating B12 to be removed.

[0046] Furthermore, in the above-described embodiment, as an example of the stripping mechanism, the stripping mechanism 13 is exemplified, which strips off the front and back covering portions B12a and the side covering portions B12b collectively by sliding the front and back removing member 131 and the side removing member 132, each of which has a U-shape in side view. However, the stripping mechanism is not limited to this, and may be, for example, a mechanism in which plate members for covering removal are individually slid one by one to strip off each portion. However, as described above, the configuration in which the front and back covering portions B12a and the side covering portions B12b are stripped off collectively by sliding the U-shaped front and back removing member 131 and the side removing member 132 can further reduce the work time and equipment costs related to covering removal. [Explanation of symbols]

[0047] 1. Coating removal device 11 plates 12 Notch formation mechanism 13 Peeling mechanism 121 Cutting blade 121a First cutting blade 121b Second cutting blade 121c Third cutting blade 122 Cutting blade holding mechanism 123 Front and back cutting blade slide mechanism 124 Side cutting blade slide mechanism 131 Front and back removal member 131a Front and back removal plate member 131a-1 Front and back peeled edges 131b Front and back removal connecting block 132 Side removal member 132a Side removal plate member 132a-1 Side stripped edge 132b Side removal connecting block 133 Peeling slide mechanism 133a Slide mechanism for removing front and back 133b Slide mechanism for side removal B1 Covered busbar B1a Covering removal area B1b Remaining coating B1c cut B1c-1 Front and back notches B1c-2 Side notch B11 busbar body B12 Insulation coating B12a Front and back covering part B12b Side covering part D11 Longitudinal direction D12 Circumferential direction D13 Width direction D131 Front and back cut direction D132 Front and back removal direction D14 Thickness direction D141 Side cutting direction D142 Side removal direction G11,G12,G13,G14 Gap P11 Initial cutting position P12 Front and back removal initial position P13 Side removal initial position X11 rotation axis

Claims

1. a covered busbar having a strip-shaped busbar body coated with an insulating coating, a portion of the covered busbar in the longitudinal direction defined as a coating-removed portion and a portion other than the coating-removed portion defined as a coating-remaining portion, and a notch forming mechanism that forms a notch across the entire width of the covered busbar in the width direction at a boundary between the coating-removed portion and the coating-remaining portion in the insulating coating, at least along a front-back boundary along a front and back surface of the busbar body, the notch forming mechanism using at least one notch forming blade for forming the notch; a stripping mechanism that is a mechanism for removing a front and back coating portion that covers at least the front and back surfaces of the insulating coating in the coating removal portion after the incision is formed, the stripping mechanism sliding a front and back removal member for removing the front and back coating portion in the width direction to strip the front and back coating portion from the front and back surfaces; A coating removal device comprising:

2. the incision forming mechanism forms the incisions along the entire thickness direction of the covered busbar at the boundary between the front and rear surfaces and at a pair of side boundaries along a pair of side surfaces of the busbar body, thereby forming the incisions along the boundary between the front and rear surfaces and at the entire circumferential direction of the covered busbar, and the incisions are also formed at the pair of side boundaries by at least one of the incision blades; 2. The coating removal device according to claim 1, wherein the peeling mechanism is a mechanism that removes side coating portions that cover a pair of side surfaces of the busbar body along with the front and back coating portions, and peels the side coating portions from the pair of side surfaces by sliding a side removal member for removing the side coating portions in the thickness direction.

3. The incision forming mechanism three cutting blades including a first cutting blade, a second cutting blade aligned with the first cutting blade in the thickness direction with a gap corresponding to the plate thickness of the bus bar body, and a third cutting blade aligned with the first cutting blade in the width direction with a gap corresponding to the plate width of the bus bar body; a front / back incision blade slide mechanism that slides the first incision blade and the second incision blade in the width direction so as to trace the front / back boundary, thereby forming the incision at the front / back boundary over the entire width in the width direction; a side cutting blade slide mechanism that forms the incisions along the entire length of the pair of side boundaries in the thickness direction by sliding the first cutting blade and the third cutting blade in the thickness direction so as to trace the pair of side boundaries; 3. The coating removal device according to claim 2, further comprising:

4. The incision forming mechanism further includes a cutting blade holding mechanism that holds the first cutting blade, holds the second cutting blade in the thickness direction so as to be aligned with the first cutting blade with a gap corresponding to the plate thickness, and holds the third cutting blade in the width direction so as to be aligned with the first cutting blade with a gap corresponding to the plate width, the front and back cutting blade slide mechanism slides the cutting blade holding mechanism in the width direction to slide the first cutting blade and the second cutting blade in the width direction; The sheath removal device according to claim 3 , wherein the side cutting blade slide mechanism slides the cutting blade holding mechanism in the thickness direction, thereby sliding the first cutting blade and the third cutting blade in the thickness direction.

5. The cutting blade is a disk-shaped blade, 5. The sheath removal device according to claim 4, wherein the cutting blade holding mechanism supports each of the first cutting blade, the second cutting blade, and the third cutting blade so that they can rotate about a rotation axis that is perpendicular to both the thickness direction and the width direction and passes through the center of each cutting blade.

6. the front and back removal member includes a pair of front and back removal plate members each formed in a rectangular plate shape and arranged facing each other with a gap in the thickness direction corresponding to the plate thickness of the bus bar body, and peels the front and back coating portions from the front and back surfaces at a front and back peeling edge which is one end edge of each plate member in the width direction, 3. The coating removal device according to claim 2, wherein the side surface removal member includes a pair of side surface removal plate members, each formed in a rectangular plate shape and arranged facing each other with a gap in the width direction corresponding to the plate width of the busbar body, and the side surface coating portion is peeled off from the pair of side surfaces by a side surface peeling edge that is one end edge of each plate member in the thickness direction.

7. The pair of front and back removal plate members are connected in the thickness direction at their opposite ends from the front and back peeling edge in the width direction so that the front and back removal member has a U-shape with an opening on the front and back peeling edge side when viewed from the side in the longitudinal direction, The pair of side surface removing plate members are connected in the width direction at their opposite ends from the side surface peeling edge in the thickness direction so that the side surface removing member has a U-shape with an opening on the side surface peeling edge side when viewed from the side in the longitudinal direction, The coating removal device described in claim 6, characterized in that the peeling mechanism has a peeling slide mechanism that peels off the front and back coating portions from the front and back surfaces together by sliding the front and back removal member in the width direction, and peels off the side coating portions from the pair of side surfaces together by sliding the side removal member in the thickness direction.

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