Sealant molding nozzle, sealant molding device, and sealant molding method

Abstract

To provide a sealant molding nozzle, a sealant molding device, and a sealant molding method capable of molding a sealant into a better shape.SOLUTION: This sealant molding nozzle moved along an object surface to form a sealant comprises: an opening that covers the object surface and opens only toward a rear side in a moving direction; a body that forms a cavity having a closed surface provided on a front surface; and a discharge hole provided in the body to guide a seal material fed from the outside. In a cross-sectional view in a direction orthogonal to the moving direction and along the object surface, the closed surface extends closer to the object surface toward the front side in the moving direction.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present disclosure relates to a sealant molding nozzle, a sealant molding device, and a sealant molding method. [Background technology]

[0002] It is known that sealants are applied to joints of tanks and other components in aircraft, vehicles, automobiles, etc., to prevent leakage of water, fuel, etc. from the joints. In many cases, it is required to mold the sealant to meet specified appearance quality (dimensions and shape).

[0003] For this reason, examples of using various nozzles and jigs for molding sealant have been proposed. A specific example of a sealant molding nozzle is described in the following Patent Document 1. When using the nozzle according to the following Patent Document 1, the nozzle body arranged so as to cover the target area where the sealant is to be formed is moved back and forth in the extension direction of the sealant, and the sealant is supplied along the target area from the discharge hole formed in the nozzle body. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2014-54606 A Summary of the Invention [Problem to be solved by the invention]

[0005] However, because the sealant has a very high viscosity, the nozzle body may disturb the surface of the sealant when it is moved back and forth, resulting in molding defects. In addition, the shape of the end of the sealant must comply with the standard, but the conventional technology did not take sufficient measures to mold the peripheral end.

[0006] The present disclosure has been made to solve the above-mentioned problems, and has an object to provide a sealant molding nozzle, a sealant molding device, and a sealant molding method that are capable of molding a sealant into an even better shape. [Means for solving the problem]

[0007] In order to solve the above problems, the sealant molding nozzle of the present disclosure is a sealant molding nozzle that forms a sealant by moving along a target surface, and is equipped with a main body that covers the target surface and forms a cavity having an opening that opens only toward the rear side in the direction of movement and a blocking surface provided on the front side, and an outlet hole provided in the main body that guides sealing material supplied from the outside into the cavity, and in a cross-sectional view perpendicular to the direction of movement and along the target surface, the blocking surface extends so as to approach the target surface as it moves toward the front side in the direction of movement.

[0008] The sealant molding device according to the present disclosure includes the above-mentioned sealant molding nozzle, a supply unit that supplies a sealant to the discharge hole, and a movement unit that is capable of moving the sealant molding nozzle in the movement direction.

[0009] The sealant molding method according to the present disclosure is a sealant molding method using a sealant molding nozzle, and includes the steps of: placing the sealant molding nozzle on the target surface; supplying the sealant from the outlet hole into the cavity; moving the sealant molding nozzle in the movement direction while supplying the sealant; and, after the sealant has hardened, detaching the sealant molding nozzle from the sealant by further moving the sealant molding nozzle forward in the movement direction. Effect of the Invention

[0010] According to the present disclosure, it is possible to provide a sealant molding nozzle, a sealant molding device, and a sealant molding method that are capable of molding a sealant into an even better shape. [Brief description of the drawings]

[0011] [Figure 1] 1 is an overall view showing a configuration of a sealant molding device according to an embodiment of the present disclosure. FIG. [Diagram 2] FIG. 2 is a cross-sectional view showing a configuration of a sealant molding nozzle according to an embodiment of the present disclosure. [Diagram 3] FIG. 3 is a cross-sectional view taken along line III-III in FIG. [Figure 4] FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. [Diagram 5] 1 is a flow chart illustrating steps of a sealant molding method according to an embodiment of the present disclosure. [Figure 6] FIG. 2 is a cross-sectional view showing a first modified example of a sealant molding nozzle according to an embodiment of the present disclosure. [Figure 7] 3 is a cross-sectional view showing a second modified example of the sealant molding nozzle according to the embodiment of the present disclosure, the cross-sectional view corresponding to line III-III in FIG. 2. FIG. [Figure 8] FIG. 13 is a diagram showing a first modified example of an outlet hole of a sealant molding nozzle according to an embodiment of the present disclosure. [Figure 9] FIG. 13 is a diagram showing a second modified example of an outlet hole of the sealant molding nozzle according to an embodiment of the present disclosure. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] Hereinafter, a sealant molding device 1, a sealant molding nozzle 2, and a sealant molding method according to a first embodiment of the present disclosure will be described with reference to FIGS.

[0013] (Configuration of sealant molding device) This sealant molding device 1 is preferably used to form a sealant 100 for sealing joints between structural members of an aircraft wing, which are made of fiber-reinforced resin. Below, an example will be described in which the sealant 100 is formed on the boundary where plate-like members 90 are joined together, as shown in Fig. 1. The surface on one side in the plate thickness direction that includes the boundary of the plate-like members 90 is referred to as the "target surface 91."

[0014] The sealant molding device 1 includes a sealant molding nozzle 2, a supply unit 11, and a moving unit 12. The sealant molding nozzle 2 supplies a gel-like sealant onto a target surface 91. The sealant is supplied from the supply unit 11 to the sealant molding nozzle 2. The moving unit 12 moves the sealant molding nozzle 2 in a direction along the seam of the plate-like member 90 (called the moving direction D) to form a sealant 100. The moving unit 12 is, for example, a wheel attached to the sealant molding nozzle 2 and rolling on the target surface 91. By driving these wheels with a driving source (not shown), the sealant molding nozzle 2 can move in the moving direction D on the target surface 91. The moving direction D may be curved or zigzag in accordance with the direction of the seam.

[0015] (Configuration of sealant molding nozzle) As shown in Fig. 2, the sealant molding nozzle 2 includes a main body 21 and a discharge hole 22. The main body 21 is installed on the target surface 91 so as to cover the joint between the plate-like members 90. The main body 21 has a substantially rectangular parallelepiped shape. A cavity 31 is formed on the target surface 91 side of the main body 21. The cavity 31 is defined by a closed surface 41 located on the front side of the moving direction D, an opening 42 located on the opposite side to the closed surface 41, a pair of side surfaces 43 connecting the closed surface 41 and the opening 42 in the moving direction D, and a top surface 44 facing the target surface 91 in the plate thickness direction.

[0016] The top surface 44 spreads in parallel with the flat target surface 91. A surface on the front side of the top surface 44 in the moving direction D forms the blocking surface 41. The blocking surface 41 is connected to the front edge of the top surface 44, and spreads toward the target surface 91 as it moves toward the front side. More specifically, the blocking surface 41 has a first surface 51 and a second surface 52. The first surface 51 is curved so as to approach the target surface 91 as it moves toward the front side from the front edge of the top surface 44, and is convex toward the direction away from the target surface 91. The second surface 52 is curved so as to approach the target surface 91 as it moves toward the front side from the front edge of the first surface 51, and is convex toward the target surface 91. That is, there is an inflection point between the first surface 51 and the second surface 52. As an example, the position of the inflection point in the height direction is about 1 / 2 of the height dimension from the target surface 91 to the top surface 44. The front edge of the second surface 52 extends so as to be in contact with the target surface 91. In other words, only a small gap is formed between the front edge of the second surface 52 and the target surface 91.

[0017] The opening 42 opens toward the rear side in the movement direction D of the cavity 31. The opening 42 is defined by the pair of side surfaces 43 and a molding surface 45. The molding surface 45 extends in a direction away from the target surface 91 as it moves rearward from the rear edge of the top surface 44. The molding surface 45 has a curved shape that is convex toward the target surface 91. In addition, there is no step or the like formed between the top surface 44 and the molding surface 45, and they are continuously connected.

[0018] 3, the pair of side surfaces 43 expand from the edge of the top surface 44 toward the target surface 91. The distance between the pair of side surfaces 43 gradually increases toward the target surface 91. In other words, the cavity 31 has a trapezoidal shape when viewed from the movement direction D. The cavity 31 is also open toward the target surface 91.

[0019] As shown in FIG. 2 or FIG. 4, the discharge hole 22 is formed at a midway position of the top surface 44. The discharge hole 22 is formed at the most forward position on the top surface 44. The discharge hole 22 has a rectangular opening shape when viewed from a direction perpendicular to the target surface 91. That is, the rear side and the front side edges (referred to as the first edge 61 and the second edge 62, respectively) of the discharge hole 22 in the moving direction D are perpendicular to the moving direction D and extend linearly in a direction along the target surface 91. The discharge hole 22 is opened at the center in the width direction of the cavity 31 when viewed from a direction perpendicular to the target surface 91. The discharge hole 22 communicates with a supply flow path F for supplying a sealant from the outside. The cavity 31 is filled with a gel-like sealant before hardening through the supply flow path F and the discharge hole 22.

[0020] (Sealant molding method) Next, a method for molding the sealant 100 using the above-mentioned sealant molding device 1 will be described with reference to Fig. 5. As shown in the figure, this method includes step S1 of installing the sealant molding nozzle 2, step S2 of supplying the sealing material, step S3 of moving the sealant molding nozzle 2, and step S4 of detaching the sealant molding nozzle 2 from the sealant 100.

[0021] In step S1, the sealant molding nozzle 2 is placed on the target surface 91 on which the seams between the plate-like members 90 are formed. At this time, it is desirable to align the direction in which the seams extend with the moving direction D of the sealant molding nozzle 2. The sealant molding nozzle 2 is also placed at the start point of the seam. In step S2, the sealant molding nozzle 2 is supplied into the cavity 31. After the sealant is filled into the cavity 31, the sealant molding nozzle 2 is moved in the moving direction D along the seam in step S3. As a result, the sealant is piled up on the target surface 91 by the height of the cavity 31 (i.e., the distance between the top surface 44 and the target surface 91) so as to cover the seam. In this step S3, the sealant molding nozzle 2 may be moved slightly backward not only to the front side of the moving direction D but also to the rear side. Thereafter, the sealant molding nozzle 2 is left stationary until the sealant hardens. After the sealing material has hardened to form the sealant 100, the sealant molding nozzle 2 is pulled forward in the moving direction D to detach it from the sealant 100. At this time, the excess sealant 100 remaining in the above-mentioned supply flow path F is torn off by pulling the sealant molding nozzle 2, and is removed from the main body 21 of the sealant 100. With the above, each step of the sealant molding method is completed.

[0022] (Action and effect) A certain quality standard is set for the sealant 100 used in aircraft and the like as described above. This type of standard requires that the sealant 100 does not turn over at the end portion, that the sealant 100 does not have an uneven bulge formed in the middle of its extension, and the like. However, since the sealant has a very high viscosity, in the conventional device, the edge of the opening 42 may disturb the surface of the sealant when the nozzle is moved back and forth in the moving direction D, resulting in the uneven bulge and molding defects. In addition, the shape of the end portion of the sealant 100 is also required to comply with the standard, but the conventional technology did not take sufficient measures against molding defects of the end portion. Therefore, in this embodiment, the above-mentioned configurations are adopted.

[0023] According to the above configuration, the blocking surface 41 extends toward the front side in the moving direction D so as to approach the target surface 91. This allows the shape of the terminal end of the sealant 100 to be a gently sloping surface that matches the blocking surface 41. In other words, at the terminal end, the sealant 100 forms a thin film on the target surface 91 while being in close contact with the target surface 91. This makes it possible to obtain a good shape of the sealant 100 that complies with the predetermined standards for the sealant 100.

[0024] Furthermore, according to the above configuration, the portion of the blocking surface 41 on the target surface 91 side is curved in a direction away from the target surface 91 as it moves forward. This allows the lower slope of the end portion of the sealant 100 to have a curved shape that gradually widens and thins along the target surface 91. This further improves the adhesion between the sealant 100 and the target surface 91. As a result, it is possible to further reduce the possibility of poor compatibility of the sealant 100.

[0025] Moreover, according to the above configuration, the molding surface 45 extends so as to move away from the target surface 91 toward the rear side. As a result, when the main body 21 is moved rearward in the moving direction D, the molding surface 45 moves while stroking the uncured sealant already filled on the target surface 91, so that the molding surface 45 is less likely to disturb the shape of the sealant behind it. Therefore, uneven filling of the sealant (uneven swelling) can be avoided, and the shape of the sealant 100 can be maintained even better. This improves compliance with standards and further improves the yield of the final product.

[0026] In addition, according to the above configuration, since the molding surface 45 is curved and convex in the direction toward the target surface 91, the molding surface 45 is less likely to interfere with the sealing material behind it, and the possibility that the shape of the sealing material before hardening will be disturbed can be further reduced. Therefore, uneven filling of the sealing material can be avoided, and the shape of the sealant 100 can be maintained even better.

[0027] Here, when the filled sealant hardens, it is necessary to move the main body 21 further forward in the moving direction D to detach the main body 21 from the hardened sealant (sealant 100). At this time, the excess of the sealant 100 remaining in the above-mentioned supply flow path F is torn off by pulling the sealant molding nozzle 2, and is removed from the main body of the sealant 100 that is originally intended to remain. At this time, since the rear edge of the discharge hole 22 is linear, a shear force can be applied evenly from the rear side in the moving direction D to the excess part of the sealant 100 extending from the discharge hole 22 toward the outside. Therefore, the excess part can be smoothly cut off just above (at the base of) the discharge hole 22. This makes it difficult for excess parts to remain on the surface of the sealant 100 after molding. As a result, it becomes possible to more easily obtain a good shape of the sealant 100 that meets the specified standard. On the other hand, for example, if the discharge hole 22 is circular, sufficient shear force cannot be applied to the excess portion, and there is a possibility that unnecessary burrs will remain on the surface of the sealant 100. With the above-mentioned configuration, it is possible to significantly reduce such a possibility.

[0028] In addition, according to the above configuration, because the discharge hole 22 has a rectangular shape, the sealing material can be continuously supplied uniformly throughout the entire interior of the cavity 31. This makes it possible to avoid defective molding of the sealant 100 due to the inclusion of air bubbles or the like.

[0029] Furthermore, according to the above configuration, it is possible to autonomously and stably form the sealant 100 having a good shape by moving the sealant molding nozzle 2 in the moving direction D by the moving part 12. In particular, when it is necessary to form the sealant 100 in a narrow area, this is more advantageous than manual application.

[0030] Furthermore, according to the above molding method of the sealant 100, it is possible to stably form the sealant 100 having a good shape by moving the sealant molding nozzle 2 in the moving direction D. In particular, even if the moving part 12 is not used, it is possible to form the sealant 100 having a more precise and good shape because the amount of filling and the shape of the sealing material can be confirmed visually while moving the sealant molding nozzle 2 manually. This improves the conformity rate of the sealant 100, and further improves the yield of the final product.

[0031] (Other embodiments) Although the embodiments of the present disclosure have been described in detail above with reference to the drawings, the specific configuration is not limited to this embodiment, and design changes and the like that do not deviate from the gist of the present disclosure are also included.

[0032] For example, in the above embodiment, the plate-like member 90 has been described as a schematic example of the object on which the sealant 100 is to be formed. However, the object is not limited to this. Another example is a case where the sealant 100 is formed at a joint when a stringer of an aircraft wing is joined to a skin. In addition, the above-mentioned device and method can be applied to any transport machinery such as an automobile or a ship, or an industrial machine, as long as it is necessary to form the sealant 100. In addition, the material of the target surface 91 on which the sealant 100 is to be formed is not limited to fiber-reinforced resin, and may be other resins or metal materials. Furthermore, even if a step is formed along the joint on the target surface 91, the above-mentioned device and method can be suitably used.

[0033] In addition, various changes and modifications can be made to the configuration of the sealant 100 forming nozzle. As shown in FIG. 6 as a modified example, the blocking surface 41 may be flat instead of curved. More specifically, the blocking surface 41 extends so as to approach the target surface 91 as it moves forward in the moving direction D. This configuration can reduce the cost and time required for curved processing of the blocking surface 41, thereby reducing the manufacturing and maintenance costs of the device. Similarly, the forming surface 45 may extend flat in a direction away from the target surface 91 as it moves backward in the moving direction D. This configuration can also reduce the cost and time required for curved processing, thereby reducing the manufacturing and maintenance costs of the device.

[0034] 7, the pair of side surfaces 43 may be curved and convex in the direction in which they approach each other. In this case, the edge of the sealant 100 in the width direction forms a gentle slope with respect to the target surface 91, similar to the end portion, and comes into close contact with the target surface 91. This makes it possible to further improve the adhesion between the sealant 100 and the target surface 91. At the same time, it is also possible to improve compliance with standards.

[0035] Furthermore, the shape of the discharge hole 22 is not limited to the rectangular shape described above. As shown in FIG. 8, the edge (first edge 61) on the rear side in the moving direction D may be straight, and the edge (second edge 62) on the front side may be arcuate. That is, if only the first edge 61 is straight, the excess part of the sealant 100 described above can be easily cut off, and the shape of the second edge 62 may be appropriately changed according to the design and specifications. In addition, as shown in FIG. 9, the discharge hole 22 may be trapezoidal. In this case, it is desirable that the edge (second edge 62) on the front side in the moving direction D is longer than the edge (first edge 61) on the rear side. According to this configuration, since more sealing material can be supplied to the region on the front side in the moving direction D close to the end portion, it is possible to further reduce the possibility of molding defects occurring at the end portion. As a result, the quality and yield of the final product can be further improved.

[0036] The configuration of the moving unit 12 is not limited to the above embodiment, and the position and number of wheels can be changed as appropriate according to the design and specifications. Furthermore, a crawler or belt-like drive mechanism may be provided instead of wheels. Regardless of the configuration, the same effects as those described above can be obtained.

[0037] <Additional Notes> The provision of the sealant molding nozzle 2, the sealant molding device 1, and the sealant molding method capable of molding the sealant 100 described in each embodiment into a better shape can be understood, for example, as follows.

[0038] (1) The sealant molding nozzle 2 of the first embodiment is a sealant molding nozzle 2 that forms a sealant 100 by moving along a target surface 91, and is equipped with a main body 21 that covers the target surface 91 and forms a cavity 31 having an opening 42 that opens only toward the rear side in the moving direction D and a blocking surface 41 provided on the front side, and an outlet hole 22 provided in the main body 21 for directing sealing material supplied from the outside into the cavity 31, and in a cross-sectional view perpendicular to the moving direction D and along the target surface 91, the blocking surface 41 extends so as to approach the target surface 91 as it moves toward the front side of the moving direction D.

[0039] According to the above configuration, the blocking surface 41 extends toward the front side in the moving direction D so as to approach the target surface 91. This allows the shape of the terminal end of the sealant 100 to be a gently sloping surface that matches the blocking surface 41. This makes it possible to obtain a good shape of the sealant 100 that complies with the predetermined standards for the sealant 100.

[0040] (2) The sealant molding nozzle 2 of the second embodiment is the sealant molding nozzle 2 of (1), in which the portion of the blocking surface 41 on the target surface 91 side is curved in a direction away from the target surface 91 as it moves toward the forward side of the movement direction D.

[0041] According to the above configuration, the portion of the blocking surface 41 on the target surface 91 side is curved in a direction away from the target surface 91 as it moves forward. This allows the lower slope of the end portion of the sealant 100 to have a curved shape that gradually widens and thins along the target surface 91. This further improves the adhesion between the sealant 100 and the target surface 91.

[0042] (3) The sealant molding nozzle 2 of the third embodiment is the sealant molding nozzle 2 of (1) or (2), in which, when viewed in a cross-sectional view perpendicular to the moving direction D and along the target surface 91, the molding surface 45, which is the edge of the opening 42 opposite the target surface 91, extends away from the target surface 91 as it moves toward the rear side of the moving direction D.

[0043] According to the above configuration, the molding surface 45 extends so as to move away from the target surface 91 as it moves rearward. As a result, when the main body 21 is moved rearward in the moving direction D, the molding surface 45 moves while stroking the uncured sealant already filled on the target surface 91, so that the molding surface 45 is less likely to disturb the shape of the sealant behind it. Therefore, it is possible to avoid uneven filling of the sealant, and it is possible to maintain the shape of the sealant 100 even better.

[0044] (4) The sealant molding nozzle 2 according to a fourth embodiment is the sealant molding nozzle 2 of (3), in which the molding surface 45 has a curved shape that is convex in a direction toward the target surface 91.

[0045] According to the above configuration, since the molding surface 45 is curved and convex in the direction toward the target surface 91, the molding surface 45 is less likely to interfere with the sealing material behind it, and the possibility that the shape of the sealing material before hardening will be disturbed can be further reduced. Therefore, it is possible to avoid uneven filling of the sealing material, and it is possible to maintain the shape of the sealant 100 more satisfactorily.

[0046] (5) The sealant molding nozzle 2 in the fifth aspect is the sealant molding nozzle 2 of (1) to (4), wherein the rear edge of the discharge hole 22 in the moving direction D is perpendicular to the moving direction D and extends linearly in a direction along the target surface 91.

[0047] Here, when the filled sealant hardens, it is necessary to move the main body 21 further forward in the moving direction D to detach the main body 21 from the hardened sealant (sealant 100). At this time, since the rear edge of the discharge hole 22 is linear, a shear force can be applied evenly from the rear side in the moving direction D to the excess part of the sealant 100 extending from the discharge hole 22 toward the outside. Therefore, the excess part can be smoothly cut off just above (at the base of) the discharge hole 22. This makes it difficult for excess parts to remain on the surface of the sealant 100 after molding. As a result, it is possible to easily obtain a good shape of the sealant 100 that meets the specified standards.

[0048] (6) The sealant molding nozzle 2 according to a sixth aspect is the sealant molding nozzle 2 of (5), in which the discharge hole 22 has a rectangular shape when viewed from a direction perpendicular to the target surface 91.

[0049] According to the above configuration, because the discharge hole 22 has a rectangular shape, it is possible to continue to supply the sealing material uniformly throughout the entire interior of the cavity 31. This makes it possible to avoid defective molding of the sealant 100 due to the inclusion of air bubbles or the like.

[0050] (7) The sealant molding apparatus 1 of the seventh aspect includes a sealant molding nozzle 2 of any one of the aspects (1) to (6), a supply unit 11 that supplies sealing material to the outlet hole 22, and a moving unit 12 that is capable of moving the sealant molding nozzle 2 in the moving direction D.

[0051] According to the above configuration, it is possible to autonomously and stably form the sealant 100 having a good shape by moving the sealant molding nozzle 2 in the moving direction D by the moving part 12. In particular, when it is necessary to form the sealant 100 in a narrow area, this is more advantageous than manual application.

[0052] (8) The sealant molding nozzle 2 of the eighth aspect is a sealant molding method using the sealant molding nozzle 2 of any one of the aspects (1) to (6), and includes the steps of: placing the sealant molding nozzle 2 on the target surface 91; supplying the sealant from the outlet hole 22 into the cavity 31; moving the sealant molding nozzle 2 in the moving direction D while supplying the sealant; and, after the sealant has hardened, detaching the sealant molding nozzle 2 from the sealant 100 by further moving the sealant molding nozzle 2 forward in the moving direction D.

[0053] According to the above method, it is possible to stably form the sealant 100 having a good shape by moving the sealant molding nozzle 2 in the moving direction D. In particular, since the amount of filling and the shape of the sealing material can be checked visually or the like while moving the sealant molding nozzle 2 manually, it is possible to form the sealant 100 having a more precise and good shape. [Explanation of symbols]

[0054] REFERENCE SIGNS LIST 1...sealant molding device 2...sealant molding nozzle 11...supply section 12...moving section 21...main body section 22...discharge hole 31...cavity 41...blocking surface 42...opening 43...side surface 44...top surface 45...molding surface 51...first surface 52...second surface 61...first edge 62...second edge 90...plate-shaped member 91...target surface 100...sealant D...moving direction F...supply flow path

Claims

1. A sealant molding nozzle that forms a sealant by moving along a target surface, a main body portion that covers the target surface and forms a cavity having an opening portion that opens only toward the rear side in the moving direction and a closing surface provided on the front side; a discharge hole provided in the main body portion for introducing a sealing material supplied from the outside into the cavity; Equipped with A sealant molding nozzle, wherein when viewed in a cross-sectional view perpendicular to the moving direction and along the target surface, the closing surface extends so as to approach the target surface as it moves forward in the moving direction.

2. The sealant molding nozzle according to claim 1 , wherein a portion of the blocking surface on the target surface side is curved in a direction away from the target surface as it moves forward in the movement direction.

3. 3. The sealant molding nozzle according to claim 1, wherein, in a cross-sectional view in a direction perpendicular to the moving direction and along the target surface, a molding surface which is an edge of the opening opposite the target surface extends so as to move away from the target surface toward the rear side in the moving direction.

4. The sealant molding nozzle according to claim 3 , wherein the molding surface is curved and convex in a direction toward the target surface.

5. 2. The sealant molding nozzle according to claim 1, wherein a rear end edge of the discharge hole in the moving direction is perpendicular to the moving direction and extends linearly in a direction along the target surface.

6. The sealant molding nozzle according to claim 5 , wherein the discharge hole has a rectangular shape when viewed in a direction perpendicular to the target surface.

7. The sealant molding nozzle according to claim 1 ; a supply unit that supplies a sealing material to the discharge hole; a moving unit capable of moving the sealant molding nozzle in the moving direction; A sealant molding device comprising:

8. A sealant molding method using the sealant molding nozzle according to claim 1, placing the sealant molding nozzle on the target surface; supplying the sealing material into the cavity through the discharge hole; moving the sealant molding nozzle in the movement direction while supplying the sealant; After the sealing material is cured, the sealant molding nozzle is further moved forward in the moving direction to detach the sealant molding nozzle from the sealant. A sealant molding method comprising the steps of:

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