Air nozzle welding machine with positioning structure

Abstract

The utility model relates to the production facility of mattress air bag, especially a gas nozzle welding machine with positioning structure. The existing gas nozzle welding machine lacks accurate positioning to air bag belt end portion, and the deviation of air bag belt end portion can cause unstable gas nozzle welding processing quality, inconsistent welding effect and other problems. The utility model provides a gas nozzle welding machine with positioning structure, including the frame, is equipped with the welding pedestal of lower position and the welding host with the welding nozzle of upper position, is equipped with the welding station of matching welding nozzle on the welding pedestal, and the welding nozzle can be matched with the welding station through the lifting and carries out the welding operation, is equipped with the positioning structure that can make air bag belt end portion locate the welding station on the welding pedestal, and the positioning structure includes the air bag installation site that is used for placing the capsule body and is arranged on the welding station side. The utility model can make air bag belt end portion together with gas nozzle accurate positioning on the welding station, and will not produce deviation, ensures that the gas nozzle and air bag belt end portion complete welding processing in the correct position, and the gas nozzle welding consistency is good, and the welding quality is stable.

Description

Technical Field

[0001] This utility model relates to the field of airbag production equipment for mattresses, and in particular to an air nozzle welding machine with a positioning structure. Background Technology

[0002] Air mattresses use airbags as internal support or massage layers. Each airbag is composed of multiple airbags connected in a straight line. During operation, a sealed nozzle at one end of the airbag connects to an adjustable air pump via an air supply pipe, inflating or deflating the airbag cavities to provide massage or elastic support. Currently, the nozzle connected to one end of the airbag is installed using a welding process. During welding, the nozzle is placed on a welding position at the end of the airbag. This welding position is a receiving cavity extending from the end of the airbag. The nozzle, along with the end of the airbag at the welding position, is placed on a welding platform. During welding, the welding nozzle approaches the welding platform and clamps the end of the airbag and the nozzle together. The welding process then fixes the nozzle to one end of the airbag. Current nozzle welding processes are manual, and the airbag strip end is difficult to position on the welding table. When the nozzle approaches the welding table and clamps the airbag strip end and nozzle, the airbag strip shifts due to the clamping action, causing the nozzle and airbag strip end to deviate relative to the welding table. This affects the welding effect of the nozzle at the airbag strip end, resulting in inconsistent welding quality. Furthermore, existing nozzle welding machines only have one welding station with a welding table. Each time, the nozzle at the welding station must be welded before the already welded airbag strip can be removed, and then a new nozzle and airbag strip to be welded can be loaded. During loading and unloading, the nozzle remains in a waiting, non-operating state, resulting in low production efficiency and long welding times. Utility Model Content

[0003] To address the technical problems of existing nozzle welding machines, such as the lack of precise positioning of the airbag strip end, which leads to unstable welding quality and inconsistent welding results due to airbag strip end misalignment, this utility model provides a nozzle welding machine with a positioning structure. The positioning structure allows the airbag strip end, along with the nozzle, to be accurately placed on the welding platform, and prevents misalignment relative to the welding platform when the nozzle approaches it. This ensures that the nozzle and airbag strip end can be welded in the correct position, resulting in good nozzle welding consistency and stable welding quality.

[0004] The technical solution adopted by this utility model to solve the technical problem is as follows: A gas nozzle welding machine with a positioning structure includes a frame, a lower welding platform and an upper welding main unit with a welding nozzle on the frame. The welding platform has a welding station that matches the welding nozzle. The welding nozzle can be raised and lowered to match the welding station for welding operations. The key feature is that the welding platform has a positioning structure that positions the end of the airbag band on the welding station. The positioning structure includes an airbag mounting position on the side of the welding station for placing the airbag body. This utility model prevents the gas nozzle and the end of the airbag band from shifting relative to the welding station through the positioning structure, ensuring that the gas nozzle and the end of the airbag band are in the correct position for welding, guaranteeing consistent welding results and stable welding quality. The positioning structure includes an airbag mounting position on the side of the welding station. During use, the airbag body closest to the welding point of the airbag band can be placed in the airbag mounting position, so that the adjacent end of the airbag band and the gas nozzle on it are limited on the welding station.

[0005] As a further improvement and supplement to the above technical solution, the present invention adopts the following technical measures: a positioning block is provided on the welding platform on the side of the welding station, and the positioning block has a cavity for matching the airbag to form the airbag mounting position. The airbag mounting position is located on the positioning block on the side of the welding station. When the airbag with the end closest to it is placed in the airbag mounting position on the positioning block, the end of the airbag and the air nozzle are also correctly placed on the welding station for welding operations.

[0006] The positioning block has vertically positioned limiting posts on the outside of the airbag mounting position. These limiting posts limit the airbag strap when the airbag body is placed in the mounting position. The limiting posts position the airbag body on the positioning block, preventing the airbag strap from shifting and thus preventing displacement of the airbag strap from affecting the welding of the nozzle. During use, to facilitate the positioning by the limiting posts, the airbag strap needs to extend a section from the side of the corresponding airbag body and have pre-drilled positioning holes that match the limiting posts.

[0007] The positioning block has grooves on its front and rear sides for accommodating the air tubes, and these grooves connect to the cavity where the airbag is installed. The positioning block also has notches on its left and right sides for accommodating connecting pieces. The front and rear grooves are for matching the air tubes connecting to the airbag body on the airbag strap, while the left and right notches are for accommodating the connecting pieces extending from both sides of the airbag strap. These connecting pieces are used to weld adjacent airbag straps together, allowing multiple adjacent airbag straps to be connected to form a single airbag pad.

[0008] The frame is equipped with two welding platforms, and the welding stations on the two platforms can alternately cooperate with the welding nozzle to perform welding operations. During welding operations, the two welding platforms alternately move to the area below the welding main unit, or the welding nozzle moves back and forth above the two welding platforms. By having the two welding platforms take turns cooperating with the welding nozzle, the idle waiting time of the welding nozzle is shortened, while the production efficiency of the welding operation is improved. During operation, the two welding platforms alternately move to the area below the welding main unit to complete the welding operation in conjunction with the lifting and lowering welding nozzle, or the two welding platforms are fixed, and the welding nozzle moves back and forth between the two welding platforms. After moving above one welding platform, it moves up and down to complete the welding operation. After the operation is completed, the welding nozzle moves to the other welding platform, and so on, with the welding nozzle repeatedly moving and rising and falling.

[0009] The frame is equipped with a horizontal slide rail along its length. Two welding platforms are movably mounted on the horizontal slide rail, with the two platforms located at opposite ends of the rail. The welding host is positioned above the middle section of the horizontal slide rail. During welding operations, the two welding platforms alternately move to the middle section of the horizontal slide rail. By providing a common horizontal slide rail on the frame, the translational movement of the two welding platforms is facilitated. The two welding platforms are movably mounted at opposite ends of the horizontal slide rail, while the welding host is positioned above the middle section. During welding operations, the two welding platforms alternately move to the middle section of the horizontal slide rail to cooperate with the welding host in welding operations. When one welding platform is performing welding operations, the other welding platform moves back to the end of the horizontal slide rail for loading and unloading operations. Loading and unloading are both performed at the end of the horizontal slide rail, away from the welding host and unaffected by it, thus facilitating operation.

[0010] The frame is equipped with two independent drive mechanisms, each driving one welding platform to move along a horizontal slide rail. Each drive mechanism includes a motor and a transmission pair, which is connected to the corresponding welding platform. Each welding platform moves along the horizontal slide rail under the drive of its own drive mechanism. The two drive mechanisms operate independently, ensuring good reliability and stability of the welding platform movement. Each drive mechanism includes a separate motor and a matching transmission pair; the welding platform moves by connecting to the transmission pair.

[0011] The transmission pair is a belt drive pair, and the welding platform is fixedly connected to the belt of the belt drive pair via a moving block. The belt drive pair has low manufacturing and maintenance costs, is sufficient to meet the low-speed translation requirements of the welding platform, and at the same time, the belt operates quietly and has a shock absorption effect to buffer impacts and vibrations.

[0012] A conductive block is installed on the frame below the welding host. When the welding platform moves to the middle section of the horizontal slide rail, the conductive block contacts the welding platform, and the welding nozzle is energized through an elastic conductive sheet. The purpose of the conductive block is to improve safety during energized welding operations. The welding platform, welding station, and welding nozzle are all made of metal. The welding platform only contacts the conductive block when it moves to the middle section of the horizontal slide rail, allowing the welding platform and welding station to be energized for welding operations. When the welding platform is at the end of the parallel slide rail, away from the conductive block, the welding platform and welding station are de-energized, allowing workers to safely place and retrieve materials on the welding platform. The welding nozzle is energized through an elastic conductive sheet, which is a thin elastic sheet with high deformation performance, capable of meeting the high-frequency voltage required by the welding nozzle during welding operations.

[0013] The welding host is equipped with a welding nozzle mounting base that is driven to move up and down by a drive mechanism. The bottom of the welding nozzle mounting base is provided with multiple welding nozzles arranged in a straight line in the horizontal plane. The welding platform is provided with multiple welding platforms arranged in a straight line in the horizontal plane and airbag mounting positions that match each welding platform. The arrangement direction of the welding platforms and the arrangement direction of the welding nozzles are in the same vertical plane. The number of welding platforms is greater than the number of welding nozzles. The adjacent spacing of the welding platforms is the same as the adjacent spacing of the welding nozzles. The arrangement direction of the airbag mounting positions is parallel to the arrangement direction of the welding platforms. Multiple welding nozzles and welding stations can be matched to increase the number of nozzles that can be welded at one time, thus improving the production efficiency of gas nozzle welding. With more welding stations than nozzles, the welding station can accommodate more nozzles and airbags at once. During processing, the welding station can be adjusted to allow each welding station to move under the nozzle and cooperate with it for welding, further increasing the number of nozzles that can be welded on the welding station and improving welding efficiency. The spacing between welding stations is consistent with the spacing between nozzles, facilitating alignment of the welding stations and nozzles for welding operations. During welding, the welding station moves under the nozzle mounting base, aligning all nozzles with the corresponding number of welding stations below. The nozzle mounting base rises and falls under the drive mechanism, ensuring that each nozzle cooperates with its corresponding welding station below for welding operations. This results in good matching consistency between nozzles and welding stations, stable welding quality, and after welding, the nozzle mounting base rises and moves the nozzles away from the welding station.

[0014] The beneficial technical effects of this utility model are as follows: The positioning structure prevents the nozzle and airbag end from shifting relative to the welding station, ensuring that the nozzle and airbag end remain in the correct position for welding, guaranteeing consistent welding results and stable welding quality. Furthermore, two movable welding platforms form alternating welding stations, working in turn with the nozzle to shorten the nozzle's idle time and improve the production efficiency of the nozzle welding machine. The frame of the nozzle welding frame is also equipped with a conductive block that works in conjunction with the welding platform to improve welding safety; the welding platform only becomes energized when it moves to a specific area of ​​the parallel slide rail and contacts the conductive block. Attached Figure Description

[0015] Figure 1 : A schematic diagram of the positioning structure described in this utility model.

[0016] Figure 2 : Schematic diagram of airbag strap and air nozzle placement on positioning block.

[0017] Figure 3 : Front structural diagram of this utility model.

[0018] Figure 4 : Side view of this utility model.

[0019] Figure 5 : Schematic diagram of the driving mechanism of the welding platform described in this utility model.

[0020] Figure 6 : Schematic diagram of the welding platform and parallel slide rail structure described in this utility model.

[0021] Figure 7 : A schematic diagram of the back structure of this utility model.

[0022] Figure 8 : Exploded view of the welding platform structure described in this utility model.

[0023] Figure 9 : A schematic diagram of the welding platform after the fixing frame has been removed according to this utility model.

[0024] In the diagram: 1. Welding host, 2. Welding platform, 3. Welding nozzle, 4. Welding nozzle mounting base, 5. Welding station, 6. Frame, 7. Motor, 8. Horizontal slide rail, 8-1. Slider, 9. Belt drive pair, 10. Moving block, 11. Conductive block, 12. Conductive sheet, 13. Airbag mounting position, 14. Positioning block, 15. Limiting post, 16. Mounting bracket, 17. Fixing bracket, 18. Airbag belt placement groove, 19. Notch, 20. Air nozzle, 21. Airbag belt, 21-1. Airbag body, 21-2. Welding position, 22. Groove. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0026] like Figures 1-9As shown, a gas nozzle welding machine with a positioning structure includes a frame 6. The frame 6 has a welding platform 2 at the lower position and a welding host 1 with a welding nozzle 3 at the upper position. The welding platform 2 has a welding station 5 that matches the welding nozzle 3. The welding nozzle 3 can be raised and lowered to match the welding station 5 for welding operations. The welding platform 2 has a positioning structure that can position the end of the airbag belt on the welding station 5 to ensure that the airbag belt is correctly placed and to prevent the airbag belt from shifting and affecting the welding process. The positioning structure includes an airbag mounting position 13, a limiting post 15, a groove 22 and a notch 19. The specific positioning structure is set on the positioning block 14. The positioning block 14 is set on the welding table 2 and located on the side of the welding table 5. The airbag mounting position 13 is a cavity on the positioning block 14 that matches the airbag body 21-1. The airbag body closest to the welding position of the airbag band can be put into the cavity where the airbag mounting position is located, so that the adjacent end of the airbag band and the air nozzle on it are limited on the welding table. Two vertical limiting posts 15 are symmetrically arranged on the positioning block 14 outside the airbag mounting position 13. They are used to limit the airbag band 21 when the airbag body 21-1 is placed in the airbag mounting position 13. Two grooves 22 are opened one in front and one behind on the front and rear sides of the positioning block 14 to adapt to the air tube. The grooves 22 are connected to the cavity where the airbag mounting position 13 is located. Two notches 19 are set on the left and right sides of the positioning block 14 to adapt to the connecting pieces extending from both sides of the airbag band.

[0027] This invention uses a positioning structure to prevent the nozzle and airbag strip end from shifting relative to the welding station, ensuring that the nozzle and airbag strip end remain in the correct position for welding, guaranteeing consistent welding results and stable welding quality. The positioning structure includes a cavity, a limiting post, a groove, and a notch. Before welding, the nozzle 20 is pre-placed at the welding position 21-2 at the end of the airbag strip 21, and the end of the airbag strip, including the welding position, is placed on the welding station 5.

[0028] Furthermore, the frame 6 is equipped with two welding platforms 2. During operation, the welding stations 5 on the two welding platforms 2 can alternately cooperate with the welding nozzles 3 to perform welding operations. During welding operations, the two welding platforms 2 alternately move to the bottom of the welding host 1. Alternatively, the welding nozzles 3 can move back and forth above the two welding platforms 2. The frame 6 is equipped with a horizontal slide rail 8 along its length. The two welding platforms 2 are movably mounted on the horizontal slide rail 8, and the host 1 is located above the middle section of the horizontal slide rail 8. Figure 6 The welding platform 2 shown is mounted on the common slide rail 8 by means of six sliders 8-1. Figure 6 To clearly show the common parallel slide rails and six sliders, a welding stand was removed.

[0029] During welding operations, the two welding platforms are driven by a drive mechanism to alternately move to the middle position of the horizontal slide rail, corresponding to the area below the welding main unit. They then work in conjunction with the lifting and lowering welding nozzle to complete the welding operation. While one welding platform is performing welding, the other remains at the end of the horizontal slide rail for loading and unloading. The two welding platforms and their welding stations also take turns working with the welding nozzle to perform welding operations, effectively shortening the waiting time of the welding nozzle and improving the production efficiency of the gas nozzle welding machine.

[0030] Furthermore, the frame 6 is equipped with two independent drive mechanisms that drive two welding platforms 2 to translate along the horizontal slide rail 8. Each drive mechanism includes an independent motor 7 and its driven transmission pair. The transmission pair is connected to the corresponding welding platform 2. In this embodiment, the transmission pair is preferably a belt drive pair 9, and the welding platform 2 is fixedly connected to the belt of the belt drive pair 9 through the moving block 10. Figure 5 As shown, the welding platform 2 is fixedly connected to the belt of the belt drive pair 9 via the movable block 10. The movable block 10 has slots through which the belt of the belt drive pair is threaded and clamped. The movable block can move synchronously with the belt. The welding platform 2 and the movable block 10 are connected, and the motor drives the belt to move, thus propelling the welding platform along the horizontal slide rail. Alternatively, a chain drive pair can also be used.

[0031] Furthermore, the welding host 1 is provided with a welding nozzle mounting base 4 that is driven to move up and down by a drive mechanism. The bottom of the welding nozzle mounting base 4 is provided with a plurality of welding nozzles 3 arranged in a straight line on the horizontal plane. The welding table 2 is provided with a plurality of welding stations 5 arranged in a straight line on the horizontal plane and an airbag mounting position 13 that matches each welding station 5 one by one. The arrangement direction of the welding stations 5 and the arrangement direction of the welding nozzles 3 are in the same vertical plane. The number of welding stations 5 is greater than the number of welding nozzles 3. Preferably, the number of welding stations is an integer multiple of the number of welding nozzles. The adjacent spacing of the welding stations 5 is the same as the adjacent spacing of the welding nozzles 3. The arrangement direction of the airbag mounting position 13 is parallel to the arrangement direction of the welding stations 5. A conductive block 11 is also provided on the frame 6 below the welding host 1. When the welding platform 2 moves to the middle section of the horizontal slide rail 8, the conductive block 11 contacts the welding platform 2. The welding nozzle 3 is energized through the elastic conductive sheet 12. In this embodiment, the conductive sheet 12 is fixedly connected to the welding nozzle mounting seat 4. The welding nozzle mounting seat 4, the welding nozzle 3, the conductive block 11, the welding platform 2, and the welding station 5 are all made of metal.

[0032] Because the number of welding stations is several times the number of welding nozzles, each movement of the welding platform ensures that an equal number of welding stations and nozzles work together for welding operations, avoiding repeated welding by individual welding stations. The purpose of the conductive block is to improve the safety of welding operations. When the welding platform moves to the middle of the horizontal slide rail and contacts the conductive block, the welding platform and the welding stations on it can be energized for welding operations. When the welding platform is at either end of the horizontal slide rail, away from the conductive block, the welding platform and welding stations are de-energized, allowing for safe operation without the risk of electric shock.

[0033] Furthermore, such as Figure 9 The positioning block 14 and the welding station 5 are fixed on the same mounting bracket 16. The mounting bracket 16 is detachably connected to the welding platform 2. A fixing bracket 17 is placed on the welding platform 2. The fixing bracket 17 has multiple parallel airbag placement slots 18. The number and position of the airbag placement slots 18 correspond to and match the positioning block 14. The positioning block and welding station are fixedly connected to the mounting frame to form a complete assembly. Since the mounting frame and welding platform are detachably connected, when there is a problem with the positioning block and welding station, the entire assembly can be removed from the welding platform and replaced with a spare positioning block, welding station, and mounting frame assembly, thus shortening the delay in welding production of the air nozzle caused by maintenance. The airbag belt placement slot can hold the remaining airbags on the limiting airbag belt, further positioning the airbag belt to prevent it from shifting. Since most of the airbag belt is placed on a special fixed frame and separated from the welding platform, when the size and specifications of the airbag belt change, only the fixed frame with a matching airbag belt placement slot needs to be replaced, without replacing the entire welding platform. The welding platform is moved and set on a horizontal slide rail, making it inconvenient to disassemble.

Claims

1. A gas nozzle welding machine with a positioning structure, comprising a frame (6), wherein the frame (6) is provided with a welding platform (2) at a lower position and a welding host (1) with a welding nozzle (3) at an upper position, the welding platform (2) is provided with a welding station (5) matching the welding nozzle (3), and the welding nozzle (3) can be raised and lowered to match the welding station (5) for welding operations, characterized in that... The welding stand (2) is provided with a positioning structure that allows the end of the airbag belt to be positioned on the welding stand (5). The positioning structure includes an airbag mounting position (13) on the side of the welding stand (5) for placing the airbag body.

2. The air nozzle welding machine with positioning structure according to claim 1, characterized in that: A positioning block (14) is provided on the welding platform (2) on the side of the welding station (5), and a cavity matching the airbag body is provided on the positioning block (14) to form the airbag mounting position (13).

3. The air nozzle welding machine with positioning structure according to claim 2, characterized in that: The positioning block (14) has a vertically placed limiting post (15) on the outside of the airbag installation position (13). The limiting post (15) can limit the airbag strap (21) when the airbag body is placed in the airbag installation position (13).

4. The air nozzle welding machine with positioning structure according to claim 3, characterized in that: The positioning block (14) has grooves (22) for the air tube on both the front and rear sides, and the grooves (22) are connected to the cavity where the airbag mounting position (13) is located. The positioning block (14) has notches (19) for the connecting piece on both the left and right sides.

5. The air nozzle welding machine with positioning structure according to claim 1, characterized in that: The frame (6) is provided with two welding platforms (2), and the welding stations (5) on the two welding platforms (2) can alternately cooperate with the welding nozzle (3) to perform welding operations. During the welding operation, the two welding platforms (2) alternately move to the bottom of the welding host (1), or the welding nozzle (3) moves back and forth above the two welding platforms (2).

6. The air nozzle welding machine with positioning structure according to claim 5, characterized in that: The frame (6) is provided with a horizontal slide rail (8) along its length. The two welding platforms (2) are movably mounted on the horizontal slide rail (8) and are located at both ends of the horizontal slide rail (8). The welding host (1) is located above the middle section of the horizontal slide rail (8). During welding operations, the two welding platforms (2) alternately move to the middle section of the horizontal slide rail (8).

7. The air nozzle welding machine with positioning structure according to claim 6, characterized in that: The frame (6) is provided with two independent drive mechanisms that drive two welding platforms (2) to move along the horizontal slide rail (8). The drive mechanism includes a motor (7) and a transmission pair driven by it. The transmission pair is connected to the corresponding welding platform (2).

8. The air nozzle welding machine with positioning structure according to claim 7, characterized in that: The transmission pair is a belt transmission pair (9), and the welding platform (2) is fixedly connected to the belt of the belt transmission pair (9) through the moving block (10).

9. The air nozzle welding machine with positioning structure according to claim 6, characterized in that: A conductive block (11) is provided on the frame (6) below the welding host (1). When the welding platform (2) moves to the middle section of the horizontal slide rail (8), the conductive block (11) contacts the welding platform (2), and the welding nozzle (3) is energized through the elastic conductive sheet (12).

10. The air nozzle welding machine with positioning structure according to any one of claims 1 to 9, characterized in that: The welding host (1) is provided with a welding nozzle mounting seat (4) that is driven to move up and down by a drive mechanism. The bottom of the welding nozzle mounting seat (4) is provided with multiple welding nozzles (3) arranged in a straight line on the horizontal plane. The welding platform (2) is provided with multiple welding stations (5) arranged in a straight line on the horizontal plane and airbag mounting positions (13) that match each welding station (5) one by one. The arrangement direction of the welding stations (5) and the arrangement direction of the welding nozzles (3) are in the same vertical plane. The number of welding stations (5) is greater than the number of welding nozzles (3). The adjacent spacing of the welding stations (5) is the same as the adjacent spacing of the welding nozzles (3). The arrangement direction of the airbag mounting positions (13) is parallel to the arrangement direction of the welding stations (5).

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