A welding apparatus for a three-dimensional bag

Abstract

This application provides a welding device for three-dimensional bags, relating to the field of nonwoven three-dimensional bag technology. It includes a fixed frame, with a nonwoven three-dimensional bag conveyor belt rotatably mounted between the inner walls of the front and rear sides of the fixed frame. A handle drop guide groove is provided at the top of the fixed frame. Through a nonwoven three-dimensional bag handle positioning welding assembly, the bag opening of the nonwoven three-dimensional bag is opened upwards and placed above the nonwoven three-dimensional bag conveyor belt for transport. The handle body is placed on the handle conveyor belts on both sides for transport. The handle body can be guided by a guide plate and fall into a rotating frame. A first electric telescopic rod drives the handle clamping plate to move and clamp the handle body. After the first motor starts, it can drive the drive shaft and rotating frame to rotate, causing the handle body to face downwards. This allows for rapid positioning and continuous feeding of the handle bodies on both sides, improving the welding efficiency of the device.

Description

Technical Field

[0001] This utility model relates to the field of nonwoven three-dimensional bags, and in particular to a welding device for three-dimensional bags. Background Technology

[0002] Non-woven bags are widely used in daily life. They can replace plastic bags for reuse, which is environmentally friendly. However, the production and processing of non-woven bags requires welding equipment to weld handles to facilitate bag processing.

[0003] Existing welding equipment for nonwoven stand-up pouches requires workers to hold two handles with both hands and position them on both sides of the nonwoven stand-up pouch. The welding equipment is then moved by a hydraulic rod to perform heat fusion welding on the handles. If workers accidentally touch the welding head while holding the handles, there is a risk of burns. In addition, manual operation is time-consuming and labor-intensive. Therefore, we have proposed a welding equipment for stand-up pouches. Utility Model Content

[0004] In view of this, this application provides a welding device for three-dimensional bags, which aims to solve the above-mentioned technical problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A welding device for three-dimensional bags includes a fixed frame, a non-woven three-dimensional bag conveyor belt rotatably mounted between the inner walls of the front and rear sides of the fixed frame, a handle drop guide groove opened on the top of the fixed frame, a guide plate fixedly mounted on the inner side of the handle drop guide groove, and two mounting frames fixedly mounted on the top inner wall of the fixed frame, and a non-woven three-dimensional bag handle positioning welding assembly is provided on the mounting frame.

[0007] The nonwoven fabric three-dimensional bag handle positioning and welding assembly includes a first motor, a drive shaft, a rotating frame, a first electric telescopic rod, a handle clamping plate, and a handle body. The first motor is fixedly installed on the front side of the mounting frame, the drive shaft is fixedly installed on the output end of the first motor, the rotating frame is fixedly installed on the outside of the drive shaft, the first electric telescopic rod is fixedly installed on one side of the rotating frame, the handle clamping plate is fixedly installed on the output end of the first electric telescopic rod, and the handle body is disposed between the handle clamping plate and one side of the rotating frame.

[0008] Preferably, a support frame is fixedly installed on the top left and right sides of the fixed frame, and a handle conveyor belt is rotatably installed on the inner walls of the front and rear sides of the support frame. A non-woven fabric three-dimensional bag positioning and fixing component is provided on the fixed frame.

[0009] Preferably, the nonwoven fabric three-dimensional bag handle positioning and welding assembly further includes a second electric telescopic rod and an ultrasonic welder. The second electric telescopic rod is fixedly installed on one side of the mounting frame, and the ultrasonic welder is fixedly installed on the output end of the second electric telescopic rod.

[0010] Preferably, the nonwoven fabric three-dimensional bag positioning and fixing assembly includes a third electric telescopic rod, a limiting box, and a second motor. The third electric telescopic rod is fixedly installed on the top of the fixing frame, the limiting box is fixedly installed on the output end of the third electric telescopic rod, and the second motor is fixedly installed on the right side of the limiting box.

[0011] Preferably, the nonwoven fabric three-dimensional bag positioning and fixing assembly further includes a bidirectional lead screw and a nonwoven fabric three-dimensional bag tensioning plate. The bidirectional lead screw is fixedly installed at the output end of the second motor, and the nonwoven fabric three-dimensional bag tensioning plate is threadedly installed on the left and right sides of the outer side of the bidirectional lead screw.

[0012] Preferably, the mounting bracket is L-shaped, and a rotating groove is provided on the top of the mounting bracket. The drive shaft is rotatably mounted on the inner side of the rotating groove, and the rotating bracket does not abut against the rotating groove.

[0013] Preferably, the top of the rotating frame is provided with a placement slot, and the handle body is disposed inside the placement slot.

[0014] Preferably, the bottom of the limiting box is provided with a guide groove, and the non-woven fabric three-dimensional bag support plate is in contact with the guide groove.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] (1) The welding equipment for three-dimensional bags of this utility model, through the non-woven three-dimensional bag handle positioning welding assembly, opens the bag mouth of the non-woven three-dimensional bag and places it above the non-woven three-dimensional bag conveyor belt for transmission, and places the handle body on the handle conveyor belts on both sides for transmission. The handle body can be guided by the guide plate and fall into the rotating frame. The first electric telescopic rod above the rotating frame drives the handle clamping plate to move and clamp and fix the handle body. After the first motor is started, it can drive the drive shaft and the rotating frame to rotate and make the handle body face downward, so that the handle bodies on both sides can achieve rapid positioning and continuous feeding operation, thereby improving the welding efficiency of the device.

[0017] (2) The welding equipment for a three-dimensional bag of this utility model, through the non-woven three-dimensional bag positioning and fixing component, the bidirectional screw can drive the non-woven three-dimensional bag support plates on both sides to move and abut against the inner wall of the non-woven three-dimensional bag through the threaded engagement, and open the bag opening of the non-woven three-dimensional bag. Then, the third electric telescopic rod is controlled to drive the non-woven three-dimensional bag to rise. At this time, the first motor is controlled to drive the drive shaft to rotate and make the handle body above the rotating frame abut against the outer side of the non-woven three-dimensional bag. The second electric telescopic rod is controlled to drive the ultrasonic welder to move, so that the non-woven three-dimensional bag support plate can support the bag opening, thereby making the handle body more stable during hot melt welding.

[0018] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of a welding device for a three-dimensional bag proposed in this utility model;

[0020] Figure 2 A schematic diagram showing a three-dimensional view of a welding device for a three-dimensional bag according to an embodiment of this application is provided.

[0021] Figure 3 A schematic diagram showing a three-dimensional view of the exploded portion structure of a welding apparatus for a three-dimensional bag according to an embodiment of this application is provided;

[0022] Figure 4 for Figure 3 A magnified structural diagram of A in the diagram.

[0023] Figure label:

[0024] 1. Non-woven fabric stand-up pouch handle positioning and welding assembly; 2. Non-woven fabric stand-up pouch positioning and fixing assembly; 3. Fixing frame; 4. Non-woven fabric stand-up pouch conveyor belt; 5. Support frame; 6. Handle conveyor belt; 7. Guide plate; 8. Mounting frame;

[0025] 11. First motor; 12. Drive shaft; 13. Rotating frame; 14. First electric telescopic rod; 15. Handle clamping plate; 16. Second electric telescopic rod; 17. Ultrasonic welder; 18. Handle drop guide groove; 19. Handle body;

[0026] 21. Third electric telescopic rod; 22. Limit box; 23. Second motor; 24. Two-way lead screw; 25. Non-woven fabric three-dimensional bag support plate. Detailed Implementation

[0027] To further understand the invention content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given below in conjunction with the accompanying drawings;

[0028] The structure of this utility model will now be described in detail with reference to the accompanying drawings.

[0029] refer to Figures 1-4 A welding device for three-dimensional bags includes a fixed frame 3, a non-woven three-dimensional bag conveyor belt 4 rotatably installed between the inner walls of the front and rear sides of the fixed frame 3, a handle drop guide groove 18 opened on the top of the fixed frame 3, a guide plate 7 fixedly installed on the inner side of the handle drop guide groove 18, and two mounting frames 8 fixedly installed on the top inner wall of the fixed frame 3, and a non-woven three-dimensional bag handle positioning welding assembly 1 is provided on the mounting frame 8;

[0030] The nonwoven fabric three-dimensional bag handle positioning and welding assembly 1 includes a first motor 11, a drive shaft 12, a rotating frame 13, a first electric telescopic rod 14, a handle clamping plate 15, and a handle body 19. The first motor 11 is fixedly installed on the front side of the mounting frame 8, the drive shaft 12 is fixedly installed on the output end of the first motor 11, the rotating frame 13 is fixedly installed on the outside of the drive shaft 12, the first electric telescopic rod 14 is fixedly installed on one side of the rotating frame 13, the handle clamping plate 15 is fixedly installed on the output end of the first electric telescopic rod 14, and the handle body 19 is disposed between the handle clamping plate 15 and one side of the rotating frame 13.

[0031] In this embodiment, support frames 5 are fixedly installed on the top left and right sides of the fixed frame 3, and handle conveyor belts 6 are rotatably installed on the inner walls of the front and rear sides of the support frame 5. A non-woven fabric three-dimensional bag positioning and fixing component 2 is provided on the fixed frame 3.

[0032] In this embodiment, the nonwoven fabric three-dimensional bag handle positioning and welding assembly 1 further includes a second electric telescopic rod 16 and an ultrasonic welder 17. The second electric telescopic rod 16 is fixedly installed on one side of the mounting frame 8, and the ultrasonic welder 17 is fixedly installed on the output end of the second electric telescopic rod 16.

[0033] In this embodiment, the nonwoven fabric three-dimensional bag positioning and fixing assembly 2 includes a third electric telescopic rod 21, a limiting box 22, and a second motor 23. The third electric telescopic rod 21 is fixedly installed on the top of the fixing frame 3, the limiting box 22 is fixedly installed on the output end of the third electric telescopic rod 21, and the second motor 23 is fixedly installed on the right side of the limiting box 22.

[0034] In this embodiment, the nonwoven fabric three-dimensional bag positioning and fixing assembly 2 further includes a bidirectional lead screw 24 and a nonwoven fabric three-dimensional bag support plate 25. The bidirectional lead screw 24 is fixedly installed at the output end of the second motor 23, and the nonwoven fabric three-dimensional bag support plate 25 is threadedly installed on the left and right sides of the outer side of the bidirectional lead screw 24. When the nonwoven fabric three-dimensional bag moves to below the nonwoven fabric three-dimensional bag support plate 25, the third electric telescopic rod 21 is controlled to drive the nonwoven fabric three-dimensional bag support plate 25 to descend and move the nonwoven fabric three-dimensional bag support plate 25 to the middle of the bag opening. The second motor 23 is then controlled to start and drive the bidirectional lead screw 24 to rotate. The bidirectional lead screw 24 can drive the nonwoven fabric three-dimensional bag support plates 25 on both sides to move and abut against the inner sidewall of the nonwoven fabric three-dimensional bag through threaded engagement, thus opening the bag opening. The third electric telescopic rod 21 is then controlled to drive the nonwoven fabric three-dimensional bag to rise again.

[0035] In this embodiment, the mounting bracket 8 is L-shaped, and a rotating groove is provided on the top of the mounting bracket 8. The drive shaft 12 is rotated and installed on the inner side of the rotating groove, and the rotating bracket 13 does not abut against the rotating groove. The rotating groove facilitates the installation of the drive shaft 12, allowing the drive shaft 12 to drive the rotating bracket 13 to rotate. The fact that the rotating bracket 13 does not abut against the rotating groove prevents the rotating bracket 13 from colliding during rotation.

[0036] In this embodiment, the top of the rotating frame 13 is provided with a placement groove, and the handle body 19 is disposed inside the placement groove. The placement groove allows the handle body 19 to fall into it through the handle drop guide groove 18. After the handle clamping plate 15 clamps the handle body 19, the handle body 19 can be positioned and welded by adjusting the position of the rotating frame 13.

[0037] In this embodiment, a guide groove is provided at the bottom of the limiting box 22, and the non-woven fabric three-dimensional bag support plate 25 is in contact with the guide groove. The guide groove can limit the non-woven fabric three-dimensional bag support plate 25, so that the bidirectional screw 24 is difficult to drive the non-woven fabric three-dimensional bag support plate 25 to rotate after rotation, so that the non-woven fabric three-dimensional bag support plate 25 can only slide, thereby opening and supporting the bag opening.

[0038] The specific operation is as follows: the opening of the non-woven three-dimensional bag is opened and placed on the non-woven three-dimensional bag conveyor belt 4 for transmission, and the handle body 19 is placed on the handle conveyor belts 6 on both sides for transmission. The handle body 19 can be guided by the guide plate 7 and fall into the rotating frame 13. The first electric telescopic rod 14 above the rotating frame 13 is controlled to drive the handle clamping plate 15 to move and clamp and fix the handle body 19. After the first motor 11 is started, it can drive the drive shaft 12 and the rotating frame 13 to rotate and make the handle body 19 face downward.

[0039] After the nonwoven bag moves below the nonwoven bag support plate 25, the third electric telescopic rod 21 is controlled to lower the nonwoven bag support plate 25, moving it to the middle of the bag opening. The second motor 23 is then started, driving the bidirectional lead screw 24 to rotate. The bidirectional lead screw 24, through its threaded engagement, moves the two nonwoven bag support plates 25 to abut against the inner wall of the nonwoven bag, opening the bag opening. The third electric telescopic rod 21 is then controlled to raise the nonwoven bag. At this point, the first motor 11 drives the drive shaft 12 to rotate, causing the handle body 19 above the rotating frame 13 to abut against the outer side of the nonwoven bag. The second electric telescopic rod 23 is then started. 6 drives the ultrasonic welder 17 to move. The ultrasonic welder 17 is equipped with multiple welding heads and infrared sensors on its top. It emits infrared rays and receives reflected signals. By analyzing parameters such as the intensity and time of the reflected light, it accurately calculates the relative position of the handle and the bag body. After the position is determined, the control system inside the welder responds quickly and precisely controls the output energy and action position of the ultrasonic generator. The ultrasonic generator converts electrical energy into high-frequency mechanical vibration, which is amplified by the amplitude transformer and transmitted to the welding head. When the welding head contacts the welding part between the handle body 19 and the bag body, the high-frequency vibration causes the molecules to rub violently, generating a large amount of heat in a short time. This causes the material at the contact point to heat up rapidly to the melting point, achieving thermal fusion welding. The ultrasonic welder 17 is existing technology, so it is not described in detail in this article.

[0040] It should be noted that although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A welding device for three-dimensional bags, characterized in that, include: A fixed frame (3) is provided, and a non-woven fabric three-dimensional bag conveyor belt (4) is rotatably installed between the inner walls of the front and rear sides of the fixed frame (3). A handle drop guide groove (18) is provided on the top of the fixed frame (3). A guide plate (7) is fixedly installed on the inner side of the handle drop guide groove (18). Two mounting frames (8) are fixedly installed on the top inner wall of the fixed frame (3). A non-woven fabric three-dimensional bag handle positioning welding assembly (1) is provided on the mounting frame (8). The nonwoven fabric three-dimensional bag handle positioning and welding assembly (1) includes a first motor (11), a drive shaft (12), a rotating frame (13), a first electric telescopic rod (14), a handle clamping plate (15), and a handle body (19). The first motor (11) is fixedly installed on the front side of the mounting frame (8). The drive shaft (12) is fixedly installed on the output end of the first motor (11). The rotating frame (13) is fixedly installed on the outside of the drive shaft (12). The first electric telescopic rod (14) is fixedly installed on one side of the rotating frame (13). The handle clamping plate (15) is fixedly installed on the output end of the first electric telescopic rod (14). The handle body (19) is disposed between the handle clamping plate (15) and one side of the rotating frame (13).

2. The welding equipment for a three-dimensional bag according to claim 1, characterized in that, The top left and right sides of the fixed frame (3) are fixedly installed with support frames (5), and the inner walls of the front and rear sides of the support frame (5) are rotatably installed with handle conveyor belts (6). The fixed frame (3) is provided with a non-woven fabric three-dimensional bag positioning and fixing component (2).

3. The welding equipment for a three-dimensional bag according to claim 1, characterized in that, The nonwoven fabric three-dimensional bag handle positioning welding assembly (1) also includes a second electric telescopic rod (16) and an ultrasonic welder (17). The second electric telescopic rod (16) is fixedly installed on one side of the mounting frame (8), and the ultrasonic welder (17) is fixedly installed at the output end of the second electric telescopic rod (16).

4. The welding equipment for a three-dimensional bag according to claim 2, characterized in that, The nonwoven fabric three-dimensional bag positioning and fixing assembly (2) includes a third electric telescopic rod (21), a limiting box (22), and a second motor (23). The third electric telescopic rod (21) is fixedly installed on the top of the fixing frame (3), the limiting box (22) is fixedly installed on the output end of the third electric telescopic rod (21), and the second motor (23) is fixedly installed on the right side of the limiting box (22).

5. The welding equipment for a three-dimensional bag according to claim 4, characterized in that, The nonwoven three-dimensional bag positioning and fixing assembly (2) also includes a bidirectional lead screw (24) and a nonwoven three-dimensional bag support plate (25). The bidirectional lead screw (24) is fixedly installed at the output end of the second motor (23), and the nonwoven three-dimensional bag support plate (25) is threadedly installed on the left and right sides of the outside of the bidirectional lead screw (24).

6. The welding equipment for a three-dimensional bag according to claim 1, characterized in that, The mounting bracket (8) is L-shaped, and a rotating groove is provided on the top of the mounting bracket (8). The drive shaft (12) rotates and is mounted on the inner side of the rotating groove. The rotating bracket (13) does not abut against the rotating groove.

7. The welding equipment for a three-dimensional bag according to claim 1, characterized in that, The top of the rotating frame (13) is provided with a placement slot, and the handle body (19) is located inside the placement slot.

8. The welding equipment for a three-dimensional bag according to claim 5, characterized in that, The bottom of the limiting box (22) is provided with a guide groove, and the non-woven fabric three-dimensional bag support plate (25) is in contact with the guide groove.

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