Nozzle and hot air welding machine

Abstract

To provide a nozzle for a hot air welding machine which enables easy welding.SOLUTION: A nozzle of a hot air welding machine includes a flow path having a tip part for blowing out hot air and capable of being bent by an external force, and an operating part provided in a vicinity of the tip part, and a direction of the tip part can be changed by moving the operating part. The operating part has one end connected to the vicinity of the tip part and the other end extending to the vicinity of a main body of the hot air welding machine. The flow path has a straight part connected to a body of the hot air welding machine. The nozzle further includes an extension part provided on the straight part and extending to the operating part, and a support part connected to the extension part and supporting the operating part.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a nozzle and a hot air welding machine. [Background technology]

[0002] As a background art of this technical field, there is JP 2018-193758 A (Patent Document 1). This publication describes "a hot air welder equipped with a nozzle having an uneven portion on the side wall." [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2018-193758 A Summary of the Invention [Problem to be solved by the invention]

[0004] There was a risk that users would not be able to easily perform hot air welding. [Means for solving the problem]

[0005] In order to solve the above problems, for example, the following configuration is adopted. A nozzle of a hot air welding machine, A flow path having a tip portion for blowing out hot air and capable of being bent by an external force; An operation unit provided near the tip portion, A nozzle in which the orientation of the tip portion can be changed by moving the operating portion.

[0006] The operating portion is a nozzle having one end connected to the vicinity of the tip portion and the other end extending to the vicinity of the main body of the hot air welding machine.

[0007] The flow passage has a straight portion connected to a body of the hot air welder.

[0008] An extension portion provided on the linear portion and extending to the operation portion; The nozzle further includes a support portion connected to the extension portion and configured to support the operation portion.

[0009] The support portion has a hollow structure penetrating from one end to the other end, A nozzle, wherein the operating portion passes through the hollow structure of the support portion.

[0010] The nozzle, wherein the operating portion is rotatably attached to the tip portion.

[0011] A hot air welder equipped with any of the nozzles described above. Effect of the Invention

[0012] According to the present invention, welding using hot air can be easily performed. Problems, configurations and effects other than those described above will become apparent from the following description of the embodiments. [Brief description of the drawings]

[0013] [Figure 1] FIG. 1 is an overall schematic diagram of a nozzle of a hot air welding machine. [Diagram 2] FIG. 2 is a schematic diagram of a bent nozzle of a hot air welding machine. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014] Nozzle 4 in the present disclosure is a nozzle to be attached to main body 2 of hot air welding machine 1 for welding resin with hot air, and in particular, is a nozzle for adjusting the direction of hot air. The hot air welder 1 may have, for example, a grip portion 3. This allows the hot air welder 1 to be held and handled by hand, making it easy to perform welding.

[0015] The nozzle 4 can guide the hot air blown out from the hot air welding machine 1 to the welding point. In other words, the nozzle 4 can circulate the hot air in a fixed direction. For this reason, the nozzle 4 has a hollow structure penetrating from one end through which the hot air passes to the other end. The nozzle 4 may be, for example, cylindrical.

[0016] As shown in FIG. 1, the nozzle 4 includes a flow path 5 and an operating portion 8 . The flow path 5 is connected to the main body 2 of the hot air welding machine 1, and is a member for guiding hot air to the tip H, and has a bendable part 6 that can be bent by an external force. The length of the flow path 5 may be, for example, 2 to 30 cm. The operation unit 8 is attached to the tip portion H. The operation unit 8 is a member that can change the orientation of the tip portion H.

[0017] The flow passage 5 is made of a metal material, which may be, for example, stainless steel or copper. The stainless steel may be, for example, SUS316L or SUS304. This allows hot air with a maximum temperature of 300 degrees to be guided to the welding point. The stainless steel may be SUS316L, which can improve the corrosion resistance of the flow passage 5. The flow passage 5 may be made of the same metal material, or different portions of the flow passage 5 may be made of different metal materials. The flow channel 5 has a cylindrical shape. The cylindrical shape may be, for example, a cylindrical shape or a prismatic shape. The inner diameter of the flow channel 5 may be, for example, 3 to 10 mm.

[0018] The flow path 5 has a bendable portion 6 that can be bent by an external force. The bendable portion 6 may have, for example, an uneven shape with repeated unevenness formed on the side wall. The bendable portion 6 may have, for example, a structure woven with metal threads. The bendable portion 6 may have, for example, an accordion structure in which metal plates are folded over. This allows the bendable portion 6 to bend by an external force, and the direction in which the hot air blows out can be adjusted.

[0019] The flow path 5 may have, for example, a straight portion 7. The straight portion 7 may be, for example, cylindrical. The straight portion 7 may be, for example, polygonal. The length of the straight portion 7 may be, for example, 1 to 20 cm. A plurality of straight portions 7 may be provided in the flow path 5. In this case, the plurality of straight portions 7 may be provided so as to be connected to both ends of the bendable portion 6. When the flow path 5 has the straight portion 7, the rigidity of the entire flow path 5 is improved, and welding can be easily performed.

[0020] The flow path 5 has a tip portion H. The tip portion H is a member that determines the direction in which the hot air is blown out. The diameter of the tip portion H may be the same as or different from the diameter of the flow path 5. The diameter of the tip portion H may be, for example, 1 to 10 mm.

[0021] The operation unit 8 is a member attached near the tip H and capable of changing the orientation of the tip H. The operation unit 8 being attached near the tip H may be attached between the midpoint of the bendable portion 6 of the flow channel 5 and the tip H.

[0022] The operation unit 8 may be, for example, rod-shaped with one end attached to the tip H and the other end extending to the vicinity of the main body 2 of the hot air welder 1. The vicinity of the main body 2 of the hot air welder 1 means that the other end of the operation unit 8 is located closer to the main body 2 of the hot air welder 1 than the end of the flow path 5 opposite the tip H. The operation unit 8 may be formed of, for example, a metal material. The metal material may be, for example, stainless steel or copper. The length of the operation unit 8 may be, for example, 1 to 30 cm.

[0023] The operation unit 8 may have, for example, a finger hook 9. The finger hook 9 is a member that helps operate the operation unit 8 with a finger. The finger hook 9 may be, for example, ring-shaped. The finger hook 9 may be made of the same material as the operation unit 8, or may be made of a different material. The diameter of the finger hook 9 may be, for example, 1 to 3 cm.

[0024] The operation unit 8 may have, for example, a finger hook portion 9 and a finger rest portion 10. The finger hook portion 10 may be formed, for example, perpendicular to the finger hook portion 9. This allows the operation unit 8 to be pulled using the finger hook portion 9, and the operation unit 8 to be pushed in using the finger hook portion 10, making welding easy.

[0025] As shown in FIG. 1, the operation portion 8 may be connected to the tip portion H by welding. The operation unit 8 may be rotatably connected to the tip H, for example (not shown). For example, a bearing may be provided at the tip H, and an axis may be provided at the tip of the operation unit 8, and the operation unit 8 may be rotatably connected to the tip H (not shown). This makes it possible to convert a part of the force applied when the operation unit 8 changes the orientation of the tip H into a rotating force, and reduces the possibility of the connection part of the operation unit 8 being damaged. This also makes it more difficult for the heat of the hot air to propagate from the tip H to the operation unit 8, compared to the case of welding.

[0026] The nozzle 4 may have an extension 11 and a support 12 that support the operation unit 8. The extension 11 is a member that attaches the support 12 that supports the operation unit 8. The extension 11 may be provided on the straight portion 7, for example. The extension 11 may be connected to the straight portion 7 by welding, for example. The extension 11 may also be connected to the straight portion 7 by screwing or crimping, for example, which makes it more difficult for heat from hot air to propagate from the straight portion 7 to the extension 11, compared to the case where the extension 11 is welded.

[0027] The extension 11 may be, for example, rod-shaped. The extension 11 may be made of, for example, a metal material. The metal material may be, for example, stainless steel or copper. The length of the extension 11 may be, for example, 0.5 to 1.5 cm.

[0028] The support part 12 is a member that supports the operation part 8. The support part 12 may have, for example, a hollow structure that penetrates from one end to the other end. Since the operation part 8 can move through the hollow structure of the support part 12, the direction of the tip part H can be stably changed and welding can be easily performed. The support part 12 may have, for example, a cylindrical shape. Also, the support part 12 may be, for example, a polygonal tube.

[0029] The support 12 may be formed of, for example, a metal material. The metal material may be, for example, stainless steel or copper. The length of the support 12 may be, for example, 0.5 to 2 cm. The inner diameter of the hollow structure of the support may be, for example, 1 to 5 mm.

[0030] The main body 2 may have a recess 13 at a connection portion with the grip 3. The recess 13 may be, for example, a groove shape that crosses the grip 3. The groove shape of the recess 13 may extend, for example, in substantially the same direction as the extension direction of the operating unit 8. The recess 13 may be provided, for example, so as to abut against the operating unit 8. This allows the operating unit 8 to be moved stably and facilitates welding.

[0031] 2, when the flow channel 5 is curved, the operation unit 8 may be curved. This allows the force acting on the operation unit 8 to be dispersed, making the operation unit 8 less likely to be damaged.

[0032] Although the present disclosure has been described in detail above, the present disclosure is not limited to the above-described embodiments, and various modifications, improvements, etc. are possible without departing from the gist of the present disclosure. [Explanation of symbols]

[0033] 1: Hot air welding machine 2: Main body 3: Grip section 4: Nozzle 5: Flow path 6: Bendable part 7: Straight section 8 :Operation section 9, 10: Finger rest 11: Stretching part 12: Support part 13: Recess

Claims

1. A nozzle of a hot air welding machine, A flow path having a tip portion for blowing out hot air and capable of being bent by an external force; An operation unit provided near the tip portion, A nozzle, characterized in that the orientation of the tip portion can be changed by moving the operating portion.

2. The nozzle according to claim 1 , wherein the operating portion has one end connected to the vicinity of the tip portion and the other end extending to the vicinity of a main body of the hot air welding machine.

3. The nozzle of claim 2 , wherein the flow passage has a straight portion connected to a body of the hot air welder.

4. An extension portion provided on the linear portion and extending to the operation portion; The nozzle according to claim 3 , further comprising: a support portion connected to the extension portion and supporting the operation portion.

5. The support portion has a hollow structure penetrating from one end to the other end, The nozzle of claim 4 , wherein the operating portion passes through the hollow structure of the support portion.

6. The nozzle of claim 1 , wherein the operating portion is rotatably attached to the tip portion.

7. A hot air welding machine comprising the nozzle according to any one of claims 1 to 6.

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