Gas nozzle for plastic welding

Abstract

The utility model provides a gas nozzle for plastic welding, which relates to the technical field of plastic welding and comprises a welding pipe and a ventilation sleeve, one side of the welding pipe is fixedly communicated with the ventilation sleeve, and one end of the welding pipe is fixedly communicated with a welding rod storage sleeve. A sliding groove is formed in the top of the welding rod storage sleeve, a pull rod is slidably connected to the sliding groove, a welding rod is inserted into the welding rod storage sleeve, the protective cover is closed, the welding rod is prevented from falling off from the interior of the welding pipe in the welding process, the overall length is decreased after the welding rod is melted in the welding process, and at the moment, under the action of a first spring, the welding rod is prevented from falling off from the interior of the welding pipe. When the welding rod is pressed downwards, the sliding block is driven to move downwards to extrude the welding rod, so that the welding rod is filled in a welding pipe, the problem of welding breakage or uneven welding thickness in the welding process is prevented, the mode of manually pressing the welding rod downwards is further replaced by the device, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic welding, in particular to a gas nozzle for plastic welding. Background Art

[0002] Plastic welding refers to a method of connecting two plastic parts by heating them to melt the contact surfaces at the same time, so that they are combined into a whole. It is only applicable to thermoplastic plastic connections. When welding with welding rods, a welding gun is required to weld the two plastics.

[0003] The existing patent discloses a CN217435041U welding gun nozzle. The welding gun butt pipe is connected to the heating tube of the welding gun through the expansion port, and then the welding wire is passed into the welding wire through the welding wire through the pipe part and the welding gun is started. At this time, the welding gun heats the welding wire in the welding wire through the pipe part to melt the welding wire. After the welding wire is melted, it is discharged from the bottom end of the welding wire through the pipe part, and the smoothing part smoothes the melted welding wire by moving the nozzle body. When moving the welding gun, the pressure cylinder can be placed on the top of the welding seam between two plastics. At this time, when moving the welding gun, the nozzle body can achieve the effect of sliding on the top of the welding seam through the pressure cylinder. At the same time, by spraying a Teflon lubricating layer on the inner wall of the nozzle body, the effect of preventing the plastic from sticking to the nozzle body during welding can be achieved, and the welding efficiency is effectively improved.

[0004] However, in the above technical solution, when performing plastic welding, the operator needs to manually press the welding rod and squeeze it downward to fill the welding tube. The repeated downward pressing method is used to load the material, which is not only very troublesome but also reduces the welding efficiency. Therefore, the utility model proposes a gas nozzle for plastic welding. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and provides a gas nozzle for plastic welding.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a gas nozzle for plastic welding, comprising a welding pipe and a ventilation sleeve, one side of the welding pipe is fixedly connected to the ventilation sleeve, and one end of the welding pipe is fixedly connected to a welding rod storage sleeve;

[0007] A slide groove is provided on the top of the welding rod storage sleeve, and a pull rod is slidably connected to the slide groove. A slider is provided at one end of the pull rod located inside the welding rod storage sleeve, and the slider is slidably connected in the welding rod storage sleeve. A first spring is sleeved on one end of the pull rod located in the welding rod storage sleeve, one end of the first spring is connected to the slider, and the other end of the first spring is connected to the inner wall of the welding rod storage sleeve.

[0008] As a preferred embodiment, a connecting seat is provided at the opening of the welding rod storage sleeve, a protective cover is rotatably connected to the connecting seat, a limiting seat is provided on a side of the protective cover close to the welding rod storage sleeve, and a snap assembly is provided on a side of the welding rod storage sleeve close to the protective cover.

[0009] The beneficial effect of adopting the above further solution is: the protective cover is used to limit the welding rod, so as to prevent the welding rod from falling out of the welding rod storage sleeve during the downward pressing process, thereby increasing the stability during welding.

[0010] As a preferred embodiment, the buckle assembly includes a clamping seat, which is a concave structure. The upper and lower ends of the clamping seat are slidably connected to limit pull rods, and the two limit pull rods are sleeved with a second spring at one end located on the outside of the clamping seat, and the two second springs are connected to the clamping seat at one end close to each other, and the two limit pull rods are clamped with the limit seat.

[0011] The beneficial effect of adopting the above further scheme is: the protective cover is further limited by the buckle assembly to prevent the protective cover from flipping over in the welding rod storage sleeve during use, and the protective cover is quickly snapped together with the welding rod storage sleeve through the buckle assembly, thereby improving work efficiency.

[0012] As a preferred embodiment, the other end of the ventilation sleeve is fixedly connected to a docking sleeve, and the inner surface wall of the docking sleeve is provided with a docking groove. There are three docking grooves in total, and the diameters of the three docking grooves increase successively from small to large. The other end of the docking sleeve is fixedly connected to a hoop.

[0013] The beneficial effect of adopting the above further scheme is that heating guns of different diameters can be adapted through the docking groove, and the heating gun can be inserted into the docking groove adapted thereto for plugging and fixing according to the diameter of the nozzle of the heating gun, thereby increasing the use range of the device.

[0014] As a preferred embodiment, the top of the welding rod storage sleeve is provided with limiting grooves on both sides of the slide groove, and limiting columns are provided on both sides of the pull rod, and the width of the limiting columns is smaller than the width of the limiting grooves.

[0015] The beneficial effect of adopting the above further scheme is: when installing the welding rod, the pull rod is pulled outward and rotated so that the limit seat and the limit groove are misaligned, the pull rod is limited, and the pull rod is prevented from moving downward under the action of the first spring. Fixing the pull rod can make the installation of the welding rod more convenient.

[0016] As a preferred embodiment, the ventilation sleeve is arranged below the right side of the welding pipe, the welding pipe and the ventilation sleeve are inclined structures, and the welding pipe and the ventilation sleeve are integrally cast.

[0017] The beneficial effect of adopting the above further solution is that: under the action of the ventilation sleeve, the hot air from the heating gun is transferred to the welding pipe, so that the welding rod inside the welding pipe is melted, and the plastic welding work is carried out.

[0018] Compared with the prior art, the advantages and positive effects of the utility model are:

[0019] 1. In the utility model, the welding rod is inserted into the welding rod storage sleeve and the protective cover is closed to prevent the welding rod from falling out of the welding tube during welding. During welding, when the welding rod is melted, the overall length becomes smaller. At this time, under the action of the first spring, the slider is driven to move downward to squeeze the welding rod so that the welding rod is filled in the welding tube, thereby preventing the problem of broken welding or uneven welding thickness during welding. Further, the device replaces the method of manually pressing the welding rod downward, so that the work efficiency is improved.

[0020] 2. In the utility model, the heating guns of different diameters can be adapted and installed through the docking sleeve. The nozzle of the heating gun is inserted into the hoop after passing through the hoop, and a docking groove adapted to the diameter of the heating gun is selected for plugging and fixing. Under the action of the docking sleeve, the application range of the device is improved, and the nozzle of the heating gun is further clamped by the hoop, thereby further improving the stability of the connection between the ventilation sleeve and the nozzle of the heating gun. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a front view of a gas nozzle for plastic welding according to the utility model;

[0022] Figure 2 This is a cross-sectional view of a ventilation sleeve in a gas nozzle for plastic welding according to the utility model;

[0023] Figure 3 This is a disassembled diagram of a gas nozzle for plastic welding according to the utility model;

[0024] Figure 4 The utility model is a structural schematic diagram of a buckle assembly in a gas nozzle for plastic welding.

[0025] Reference numerals

[0026] 1. Welding tube; 2. Ventilation sleeve; 21. Butt sleeve; 211. Butt groove; 22. Hoop; 3. Welding rod storage sleeve; 31. Protective cover; 311. Limit seat; 32. Slider; 33. Pull rod; 331. Limit column; 34. Slide; 35. Limit groove; 36. Connecting seat; 37. First spring; 4. Buckle assembly; 41. Connecting seat; 42. Limit pull rod; 43. Second spring. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Example 1

[0029] like Figure 1-2 As shown, the utility model provides a technical solution: a gas nozzle for plastic welding, comprising a welding pipe 1 and a ventilation sleeve 2, one side of the welding pipe 1 is fixedly connected to the ventilation sleeve 2, and one end of the welding pipe 1 is fixedly connected to a welding rod storage sleeve 3;

[0030] A slide groove 34 is provided at the top of the welding rod storage sleeve 3, and a pull rod 33 is slidably connected to the slide groove 34. A slider 32 is provided at one end of the pull rod 33 located inside the welding rod storage sleeve 3. The slider 32 is slidably connected in the welding rod storage sleeve 3. A first spring 37 is sleeved on one end of the pull rod 33 located inside the welding rod storage sleeve 3. One end of the first spring 37 is connected to the slider 32, and the other end of the first spring 37 is connected to the inner wall of the welding rod storage sleeve 3.

[0031] A connecting seat 36 is provided at the opening of the welding rod storage sleeve 3, and a protective cover 31 is rotatably connected to the connecting seat 36. A limiting seat 311 is provided on the side of the protective cover 31 close to the welding rod storage sleeve 3. A snap assembly 4 is provided on the side of the welding rod storage sleeve 3 close to the protective cover 31. The welding rod is limited by the protective cover 31 to prevent the welding rod from falling out of the welding rod storage sleeve 3 during the downward pressing process, thereby increasing the stability during welding.

[0032] Example 2

[0033] like Figure 1-4 As shown, the buckle assembly 4 includes a clamping seat 41, which is a concave structure. The upper and lower ends of the clamping seat 41 are slidably connected to the limit pull rod 42. The two limit pull rods 42 are located at one end of the outer side of the clamping seat 41 and are sleeved with a second spring 43. The ends of the two second springs 43 that are close to each other are connected to the clamping seat 41, and the two limit pull rods 42 are clamped with the limit seat 311. When the buckle assembly 4 is used, the limit pull rods 42 are pulled to both sides to drive the two limit pull rods 42 to be retracted into the clamping seat 41, thereby releasing the clamping state between the limit seat 311 and the limit pull rod 42, so that the protective cover 31 is separated from the welding rod storage sleeve 3. When closing the protective cover 31, it is only necessary to press the protective cover 31 to one side of the welding rod storage sleeve 3. At this time, the limit pull rod 42 is contracted and ejected under the action of the second spring 43, so that the limit pull rod 42 and the limit seat 311 can be clamped and limited.

[0034] The other end of the ventilation sleeve 2 is fixedly connected to a docking sleeve 21, and the inner surface wall of the docking sleeve 21 is provided with a docking groove 211. There are three docking grooves 211 in total, and the diameters of the three docking grooves 211 increase sequentially from small to large. The other end of the docking sleeve 21 is fixedly connected to a hoop 22. The docking groove 211 is used to adapt to heating guns of different diameters. According to the diameter of the heating gun nozzle, the heating gun is inserted into the matching docking groove 211 for plugging and fixing, thereby improving the application range of the device, and further the hoop 22 is used to assist in clamping the nozzle of the heating gun.

[0035] The top of the welding rod storage sleeve 3 is located on both sides of the slide groove 34, and limiting grooves 35 are provided on both sides of the pull rod 33. Limiting columns 331 are set on both sides of the pull rod 33. The width of the limiting column 331 is smaller than the width of the limiting groove 35. When installing the welding rod, the pull rod 33 is pulled outward and rotated to make the limiting seat 311 misaligned with the limiting groove 35, thereby limiting the pull rod 33 to prevent the pull rod 33 from moving downward under the action of the first spring 37. Fixing the pull rod 33 can make the installation of the welding rod more convenient.

[0036] The ventilation sleeve 2 is arranged at the lower right side of the welding pipe 1. The welding pipe 1 and the ventilation sleeve 2 are inclined structures, and the welding pipe 1 and the ventilation sleeve 2 are cast as one piece. Under the action of the ventilation sleeve 2, the hot air of the heating gun is transferred to the welding pipe 1, so that the welding rod inside the welding pipe 1 melts, and plastic welding work is performed.

[0037] Working principle:

[0038] like Figure 1-4 As shown, first pull the limiting pull rod 42 to both sides to drive the limiting pull rod 42 to be retracted into the clamping seat 41, and flip open the protective cover 31, and further pull the pull rod 33 upward and rotate it clockwise to make the limiting column 331 and the limiting groove 35 misaligned, limit the pull rod 33, and prevent the pull rod 33 from moving downward under the action of the first spring 37, insert the glue stick into the welding tube 1 through the opening of the welding rod storage sleeve 3, fix it, flip and close the protective cover 31, so that the buckle assembly 4 and the limiting seat 311 are mutually clamped and limited, and the limiting is completed, and rotate counterclockwise. The pull rod 33 aligns the limit column 331 with the limit groove 35. At this time, under the action of the first spring 37, the slider 32 is driven downward to squeeze the top of the welding rod. At this time, the heating gun nozzle is inserted into the matching docking groove 211 after passing through the hoop 22, and the hoop 22 is tightened to assist in clamping the heating gun nozzle. The heating gun is turned on. Under the action of the heating gun, the welding rod in the welding pipe 1 is melted, thereby performing plastic welding. During the welding process, under the action of the first spring 37, downward pressure is continuously applied to the top of the welding rod to prevent the welding rod from being unable to fill the welding pipe 1.

[0039] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A gas nozzle for plastic welding, characterized in that: It comprises a welding pipe (1) and a ventilation sleeve (2), one side of the welding pipe (1) is fixedly connected to the ventilation sleeve (2), and one end of the welding pipe (1) is fixedly connected to a welding rod storage sleeve (3); A slide groove (34) is provided at the top of the welding rod storage sleeve (3), and a pull rod (33) is slidably connected to the slide groove (34). A slider (32) is provided at one end of the pull rod (33) located inside the welding rod storage sleeve (3). The slider (32) is slidably connected in the welding rod storage sleeve (3). A first spring (37) is sleeved on one end of the pull rod (33) located inside the welding rod storage sleeve (3), and one end of the first spring (37) is connected to the slider (32), and the other end of the first spring (37) is connected to the inner wall of the welding rod storage sleeve (3).

2. A gas nozzle for plastic welding according to claim 1, characterized in that: A connecting seat (36) is arranged at the opening of the welding rod storage sleeve (3), a protective cover (31) is rotatably connected to the connecting seat (36), a limiting seat (311) is arranged on a side of the protective cover (31) close to the welding rod storage sleeve (3), and a buckle assembly (4) is arranged on a side of the welding rod storage sleeve (3) close to the protective cover (31).

3. A gas nozzle for plastic welding according to claim 2, characterized in that: The buckle assembly (4) includes a clamping seat (41), the clamping seat (41) is a concave structure, the upper and lower ends of the clamping seat (41) are slidably connected to the limit rod (42), one end of the two limit rods (42) located on the outside of the clamping seat (41) is sleeved with a second spring (43), the ends of the two second springs (43) close to each other are connected to the clamping seat (41), and the two limit rods (42) and the limit seat (311) are clamped to each other.

4. A gas nozzle for plastic welding according to claim 1, characterized in that: The other end of the ventilation sleeve (2) is fixedly connected to a docking sleeve (21), and the inner surface wall of the docking sleeve (21) is provided with a docking groove (211). There are three docking grooves (211) in total, and the diameters of the three docking grooves (211) increase in sequence from small to large. The other end of the docking sleeve (21) is fixedly connected to a hoop (22).

5. A gas nozzle for plastic welding according to claim 1, characterized in that: The top of the welding rod storage sleeve (3) is provided with limiting grooves (35) on both sides of the slide groove (34), and limiting columns (331) are arranged on both sides of the pull rod (33), and the width of the limiting columns (331) is smaller than the width of the limiting grooves (35).

6. A gas nozzle for plastic welding according to claim 5, characterized in that: The ventilation sleeve (2) is arranged below the right side of the welding pipe (1); the welding pipe (1) and the ventilation sleeve (2) are inclined structures, and the welding pipe (1) and the ventilation sleeve (2) are integrally cast.

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