Hot air welding machine with quick-changing tuyere

Abstract

The utility model belongs to the field of hot air welding machines, and particularly relates to an air nozzle quick-changing type hot air welding machine which comprises a hot air welding machine body, a supporting block is fixedly connected to the lower end of the hot air welding machine body, a limiting mechanism is arranged at the lower end of the hot air welding machine body, and a connecting sleeve is fixedly connected to the hot air welding machine body. And a fixing sleeve is in contact with the interior of the connecting sleeve, an air nozzle is fixedly connected to the interior of the fixing sleeve, and a dismounting mechanism is arranged on the outer side of the connecting sleeve. By designing components such as the motor, the screw rod, the threaded sleeve, the connecting plate, the guide rod and the guide sleeve, the motor is started, the motor drives the screw rod and the threaded sleeve to make threaded motion, the threaded sleeve moves to drive components such as the limiting plate to move, the limiting plate moves to make contact with the ground, and then the device is limited and stably placed at the designated position.

Description

TECHNICAL FIELD

[0001] The utility model relates to hot -air welding machine technical field, concretely is a kind of air nozzle quick-change hot -air welding machine. BACKGROUND

[0002] Hot -air welding machine is applicable to the welding of various plastic materials, including polyethylene, polypropylene, polyvinyl chloride etc. It has the advantages of fast welding speed, good welding effect, simple operation, etc., and is widely used in plastic product production, automobile parts manufacturing, building decoration and other fields. For example, the utility model patent with the patent authorization announcement No. CN221873232U proposes a hot -air welding machine, including the shell, the rear portion both sides of shell have rubber press wheel, shell upper part is hinged with driving shaft through bearing, the part of driving shaft that extends out of shell is connected with hot -air welding gun, the side of shell is fixed with press line wheel frame, the middle part of press line wheel frame has cavity, lifting rod that is vertically through press line wheel frame is arranged in cavity, lifting rod is sleeved with sliding block that is limited in cavity, sliding block side is hinged with press line wheel through press line bearing, press line wheel has concave surface for limiting electrode, spring is sleeved on the lifting rod in the cavity, one end of spring acts on press line wheel frame, and the other end acts on press line bearing, the rear side of press line bearing has connecting rod mechanism for driving press line bearing lifting, the utility model utilizes the lifting of press line wheel and spring structure to meet the conversion under different working conditions, and can adapt to the working surface of ups and downs. In the prior art, when the device reaches the specified position, the device has small contact area with the ground, which may cause the device to be unstable at the specified position. Moreover, when the air nozzle on the device needs to be replaced, external tools are needed to rotate the bolts on the device, which makes it inconvenient to quickly replace the air nozzle on the device. Therefore, the prior art needs to be improved. UTILITY MODEL CONTENTS

[0003] The utility model discloses a kind of air nozzle quick-change hot -air welding machine, solve when device reaches specified position, device and ground contact area are small, which may cause device to be unstable at specified position, moreover, when the air nozzle on the device needs to be replaced, external tools are needed to rotate the bolts on the device, which makes it inconvenient to quickly replace the air nozzle on the device.

[0004] To achieve the above object, the utility model provides the following technical scheme: a kind of air nozzle quick-change hot -air welding machine, including hot -air welding machine main body, the lower end of the hot -air welding machine main body is fixedly connected with support block, the lower end of the hot -air welding machine main body is provided with limiting mechanism, the hot -air welding machine main body is fixedly connected with connecting sleeve, the inside of the connecting sleeve is contacted with fixed sleeve, the inside of the fixed sleeve is fixedly connected with air nozzle, the outside of the connecting sleeve is provided with dismounting mechanism.

[0005] Preferably, the limiting mechanism comprises a motor, the lower end of the hot air welding machine body is fixedly connected with the motor, the lower end of the rotating shaft of the motor is fixedly connected with a screw rod, the outer side of the screw rod is threadedly connected with a threaded sleeve, the lower end of the threaded sleeve is fixedly connected with a connecting plate, the lower end of the hot air welding machine body is fixedly connected with a guide rod, and the connecting plate is fixedly connected with the limiting plate.

[0006] Preferably, the outer side of the guide rod is slidably connected with a guide sleeve, and the guide sleeve is fixedly connected with the connecting plate.

[0007] Preferably, the dismounting mechanism comprises a clamping groove, the inside of the fixing sleeve is provided with the clamping groove, the inside of the clamping groove is slidably connected with a sliding rod, the sliding rod is slidably connected with a connecting sleeve, one end of the sliding rod away from the clamping groove is fixedly connected with a supporting ring, the outer side of the connecting sleeve is fixedly connected with a connecting seat, the inside of the connecting seat is slidably connected with a pull rod, the outer side of the pull rod is provided with an elastic sponge, the inside of the connecting seat is provided with a guide groove, the inside of the guide groove is slidably connected with a guide block, the guide block is fixedly connected with the supporting ring, and the connecting seat is slidably connected with the sliding rod.

[0008] Preferably, one side of the supporting ring away from the sliding rod is fixedly connected with the pull rod, and one end of the pull rod away from the supporting ring is fixedly connected with a handle.

[0009] Preferably, one end of the elastic sponge is fixedly connected with the supporting ring, and the other end of the elastic sponge is fixedly connected with the connecting seat.

[0010] Compared with the prior art, the utility model has the advantages that:

[0011] 1、 the utility model discloses a hot air welding machine limiting device, including hot air welding machine body, the lower end of the hot air welding machine body is fixedly connected with the limiting mechanism, the limiting mechanism includes motor, the lower end of the hot air welding machine body is fixedly connected with the motor, the lower end of the rotating shaft of the motor is fixedly connected with screw rod, the outer side of the screw rod is threadedly connected with threaded sleeve, the lower end of the threaded sleeve is fixedly connected with connecting plate, the lower end of the hot air welding machine body is fixedly connected with guide rod, and the connecting plate is fixedly connected with the limiting plate.

[0012] 2, the utility model discloses a card slot, sliding rod, support ring, pull rod, handle and connecting seat etc. part is designed, and the sliding rod is moved, and the sliding rod moves from the card slot and removes, and the movable tuyere drives the fixed sleeve and the card slot and removes from the connecting sleeve, then takes out another tuyere, fixed sleeve and card slot and removes to the specified position in the connecting sleeve, then the sliding rod is moved to the card slot, and the tuyere on the device is convenient for quick replacement. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the overall structure perspective drawing of the utility model;

[0014] Figure 2 It is the partial structure sectional perspective drawing of the utility model; Figure 1

[0015] Figure 3 It is the front view sectional view of the utility model; Figure 1

[0016] Figure 4 It is the connecting sleeve enlarged view of the utility model; Figure 3

[0017] Figure 5 It is the A place enlarged view of the utility model. Figure 4

[0018] In the drawing: 1, hot air welding machine main body;2, support block;3, limit mechanism;31, motor;32, screw;33, threaded sleeve;34, connecting plate;35, guide rod;36, guide sleeve;37, limit plate;4, connecting sleeve;5, fixed sleeve;6, tuyere;7, dismounting mechanism;71, card slot;72, sliding rod;73, support ring;74, pull rod;75, handle;76, connecting seat;77, elastic sponge;78, guide groove;79, guide block. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0020] Please refer to Figures 1-5 ​​​​The utility model provides a kind of air nozzle quick-change type hot air welding machine, including hot air welding machine body 1, the lower end of hot air welding machine body 1 is fixedly connected with support block 2, the lower end of hot air welding machine body 1 is provided with limiting mechanism 3, hot air welding machine body 1 is fixedly connected with connecting sleeve 4, the inside of connecting sleeve 4 is contacted with fixed sleeve 5, the inside of fixed sleeve 5 is fixedly connected with air nozzle 6, the outside of connecting sleeve 4 is provided with dismounting mechanism 7.

[0021] Please refer to Figures 1-3 , limiting mechanism 3 includes motor 31, the lower end of hot air welding machine body 1 is fixedly connected with motor 31, the lower end of the rotating shaft of motor 31 is fixedly connected with screw rod 32, the outside of screw rod 32 is connected by screw thread with threaded sleeve 33, the lower end of threaded sleeve 33 is fixedly connected with connecting plate 34, the lower end of hot air welding machine body 1 is fixedly connected with guide rod 35, the outside of guide rod 35 is slidably connected with guide sleeve 36, guide sleeve 36 is fixedly connected with connecting plate 34, by designing guide sleeve 36, connecting plate 34 can be guided, connecting plate 34 is fixedly connected with limiting plate 37, by starting motor 31, motor 31 drives screw rod 32 and threaded sleeve 33 to move by screw thread, threaded sleeve 33 moves and drives limiting plate 37 and other components to move, limiting plate 37 moves and contacts ground, to make the device be limited, so that the device is placed stably on the specified position.

[0022] Please refer to Figure 5 , dismounting mechanism 7 includes clamping groove 71, the inside of fixed sleeve 5 is provided with clamping groove 71, the inside of clamping groove 71 is slidably connected with sliding rod 72, sliding rod 72 is slidably connected with connecting sleeve 4, the end, away from clamping groove 71 of sliding rod 72 is fixedly connected with support ring 73, the side, away from sliding rod 72 of support ring 73 is fixedly connected with pull rod 74, the end, away from support ring 73 of pull rod 74 is fixedly connected with handle 75, by designing handle 75, pull rod 74 can be moved, the outside of connecting sleeve 4 is fixedly connected with connecting seat 76, connecting seat 76 is slidably connected with pull rod 74 in the inside, the outside of pull rod 74 is provided with elastic sponge 77, one end of elastic sponge 77 is fixedly connected with support ring 73, the other end of elastic sponge 77 is fixedly connected with connecting seat 76, by designing elastic sponge 77, support ring 73 has elastic force, the inside of connecting seat 76 is provided with guide groove 78, guide groove 78 is slidably connected with guide block 79 in the inside, guide block 79 is fixedly connected with support ring 73, connecting seat 76 is slidably connected with sliding rod 72, by pulling sliding rod 72 to move, sliding rod 72 moves and moves out from clamping groove 71, moves air nozzle 6 and drives fixed sleeve 5 and clamping groove 71 to move out from connecting sleeve 4, then take out another air nozzle 6, fixed sleeve 5 and clamping groove 71 and move to the specified position in connecting sleeve 4, then make sliding rod 72 move into clamping groove 71, so that the air nozzle 6 on the device is convenient for quick replacement.

[0023] The utility model discloses a specific implementation process as follows: when the device reaches the designated position, start motor 31, and motor 31 drives screw rod 32 to rotate, and screw rod 32 rotates and thread sleeve 33 carries out screw motion, and then make thread sleeve 33 generate relative displacement, and thread sleeve 33 removes and drives connecting plate 34 to move down, and connecting plate moves down 34 and drives guiding sleeve 36 and limit plate 37 to move down, and limit plate 37 moves down and contacts the ground, and then make the device and the ground contact area increase, make the device place stable on the designated position;

[0024] When the tuyere 6 on the device needs to be replaced, pull the handle 75 to move away from the connecting seat 76, the handle 75 moves and drives the pull rod 74 to move, the pull rod 74 moves and drives the supporting ring 73 to move, the supporting ring 73 moves and drives the sliding rod 72 and the guide block 79 to move, the supporting ring 73 moves and makes the elastic sponge 77 compress, the sliding rod 72 moves and removes from the slot 71, moves the tuyere 6 and drives the fixing sleeve 5 and the slot 71 to remove from the connecting sleeve 4, then takes out another tuyere 6, fixing sleeve 5 and slot 71 and moves to the designated position in the connecting sleeve 4, releases the handle 75, the elastic force of the elastic sponge 77 pushes the supporting ring 73 to move, the supporting ring 73 moves and drives the sliding rod 72 and other components to move, the sliding rod 72 moves into the slot 71, and then the tuyere 6 and other components are limited, so that the tuyere 6 on the device is convenient to replace quickly.

[0025] Although the embodiments of the utility model have been shown and described, it can be understood by those of ordinary skill in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A hot air welding machine with quick change of the air nozzle, comprising a hot air welding machine body (1), characterized in that: The lower end of the hot air welding machine body (1) is fixedly connected with a supporting block (2), the lower end of the hot air welding machine body (1) is provided with a limiting mechanism (3), the hot air welding machine body (1) is fixedly connected with a connecting sleeve (4), the inside of the connecting sleeve (4) is in contact with a fixed sleeve (5), the inside of the fixed sleeve (5) is fixedly connected with a blowpipe (6), and the outside of the connecting sleeve (4) is provided with a dismounting mechanism (7).

2. The quick-change air nozzle hot air welding machine of claim 1, wherein: The limiting mechanism (3) comprises a motor (31), the lower end of the hot air welding machine body (1) is fixedly connected with the motor (31), the rotating shaft of the motor (31) is fixedly connected with a screw rod (32), the outside of the screw rod (32) is threadedly connected with a threaded sleeve (33), the lower end of the threaded sleeve (33) is fixedly connected with a connecting plate (34), the lower end of the hot air welding machine body (1) is fixedly connected with a guide rod (35), and the connecting plate (34) is fixedly connected with a limiting plate (37).

3. The quick-change hot air welding machine of claim 2, wherein: The outside of the guide rod (35) is slidably connected with a guide sleeve (36), and the guide sleeve (36) is fixedly connected with the connecting plate (34).

4. The quick-change hot air welding machine of claim 1, wherein: The dismounting mechanism (7) comprises a clamping groove (71), the inside of the fixed sleeve (5) is provided with the clamping groove (71), the inside of the clamping groove (71) is slidably connected with a sliding rod (72), the sliding rod (72) is slidably connected with the connecting sleeve (4), one end of the sliding rod (72) away from the clamping groove (71) is fixedly connected with a supporting ring (73), the outside of the connecting sleeve (4) is fixedly connected with a connecting seat (76), the inside of the connecting seat (76) is slidably connected with a pull rod (74), the outside of the pull rod (74) is provided with an elastic sponge (77), the inside of the connecting seat (76) is provided with a guide groove (78), the inside of the guide groove (78) is slidably connected with a guide block (79), the guide block (79) is fixedly connected with the supporting ring (73), and the connecting seat (76) is slidably connected with the sliding rod (72).

5. The quick-change hot air welding machine of claim 4, wherein: One side of the supporting ring (73) away from the sliding rod (72) is fixedly connected with the pull rod (74), and one end of the pull rod (74) away from the supporting ring (73) is fixedly connected with a handle (75).

6. The quick-change air nozzle hot air welding machine of claim 4, wherein: One end of the elastic sponge (77) is fixedly connected with the supporting ring (73), and the other end of the elastic sponge (77) is fixedly connected with the connecting seat (76).

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