Automatic welding production line for air cushion bed

Abstract

The invention belongs to the field of automatic welding production lines, and particularly relates to an air cushion bed automatic welding production line which comprises a cloth cover welding device, a cloth cover machine, a discharging device, a conveying device, a welding device, a grabbing device and a control system. The control system is electrically connected with the cloth cover welding device, the cloth cover machine, the discharging device, the conveying device, the welding device and the grabbing device. Wherein the cloth cover machine is formed by connecting a cloth cover sleeving machine and a cloth cover sleeving machine through a rack; the automatic welding production line for the air cushion bed achieves full-automatic operation of product feeding, discharging, clamping, overturning, conveying and welding, manpower is greatly saved, production safety is improved, and meanwhile the welding quality and production efficiency of products are improved.

Description

Technical Field

[0001] The invention relates to the technical field of welding, and in particular to an automatic welding production line for an air mattress. Background Art

[0002] At present, domestic air mattresses and other products are mainly welded manually or semi-automatically. Manual operation often fails to meet the processing accuracy requirements due to inadequate feeding. The operator's slight negligence may cause personal injury, and the operator's professional and technical requirements are high. General welding and assembly are single-person and single-machine production. The operator's technical level and operating specifications have a great impact on product quality. The quality of product welding is completely controlled by the operator's work experience. Therefore, quality problems such as welding length failing to meet the standard, welding leakage, and product breakage and damage due to misoperation often occur, which directly affect the product's performance and service life. After the operator completes welding, the products need to be transported to the storage area one by one. Not only is the labor intensity high, but it also wastes manpower and material resources and reduces production efficiency. Therefore, it is urgent to effectively solve the above problems.

[0003] The patent application number CN201420277055.2 discloses a feeder for an air mattress, wherein the air mattress comprises a first fabric and a second fabric laid up and down and a plurality of thorns inserted between the two, and the feeder comprises a square main workbench, characterized in that the feeder also comprises a thorn-straightening device installed on the main workbench and a thorn-feeding device, a first fabric-feeding device and a second fabric-feeding device respectively arranged on three adjacent sides of the main workbench, and the first fabric-feeding device and the second fabric-feeding device have the same structure. The patent provides a fully automated feeding device that completes accurate and efficient feeding actions, but only the feeding process is automated, and the entire production process of the fabric product still requires manual participation, which wastes manpower and has low production quality and efficiency. Summary of the invention

[0004] The purpose of the present invention is to provide an automatic welding production line for air mattresses in view of the deficiencies in the prior art. The present invention realizes fully automated production operations of loading, unloading, turning, clamping, transporting and welding of products. There is no need for staff to participate in the production process, which greatly saves labor costs. Each process step is smoothly connected, the production continuity is high, and the production efficiency and production quality can be improved.

[0005] In order to achieve the above-mentioned object, the present invention provides an automatic welding production line for an air mattress, comprising a cover welding device, a cover machine, a material unloading device, a conveying device, a welding device, a grabbing device and a control system, wherein the control system is electrically connected to the cover welding device, the cover machine, the material unloading device, the conveying device, the welding device and the grabbing device; wherein,

[0006] The cloth sleeve welding device is symmetrically distributed on one side of the cloth sleeve machine;

[0007] The cloth cover machine is composed of a cloth cover set machine and a cloth cover set machine connected by a frame; the cloth cover set machine includes a roller mechanism, a cloth cover pressing mechanism, a cloth cover pulling mechanism, a suction cup mechanism, a spreading mechanism and a driving mechanism; the roller mechanism, the cloth cover pressing mechanism, the cloth cover pulling mechanism, the suction cup mechanism, the spreading mechanism and the driving mechanism are connected in sequence and are all arranged on the frame;

[0008] The cloth sleeve machine is composed of a cloth sleeve connected by a frame; the cloth sleeve includes a drag chain arranged on a drag chain plate, the cloth sleeve also includes a cloth sleeve device and a driving device, and the cloth sleeve device and the driving device are arranged on a bottom plate, and a fixing seat is provided at one end of the bottom plate away from the cloth sleeve device;

[0009] The welding device comprises a welding robot and a workbench for welding;

[0010] The conveying device comprises a welding conveying platform and a ground rail arranged at the front side of the welding device, and the ground rails have two in total and are symmetrically arranged on both sides of the welding conveying platform;

[0011] The unloading device comprises an unloading tray and a feeder arranged on a gantry, the unloading tray is arranged at the lower side of the feeder, and the control system controls the feeder to automatically discharge and automatically cut;

[0012] The grabbing device comprises a mold rod robot, a bottom material laying robot and a finished product discharging robot; the bottom material laying robot and the finished product discharging robot are both symmetrically arranged on the ground rail.

[0013] Furthermore, there are two cloth cover fitting machines in total, which are symmetrically arranged on both sides of the gantry. The cloth cover fitting machine is composed of four sets of cloth cover fittings connected by a mounting frame.

[0014] Furthermore, the driving mechanism is composed of a synchronous wheel assembly, a motor, a synchronous belt and a tensioning device. The driving mechanism is arranged on the lower side of the baffle and drives the cloth cover to move on the cloth cover setting machine.

[0015] Furthermore, the roller mechanism includes a roller, a pressure plate and a guide block. The roller is connected to the guide block and fixed to the mounting plate through a roller mounting plate. The pressure plate is arranged at the upper end of the roller and is used to adjust the distance between the top or bottom end of the guide block and the pressure plate.

[0016] Furthermore, the suction cup mechanism includes a rodless cylinder and a fixed seat assembly slidably arranged on the upper end of the rodless cylinder, both ends of the lower side of the rodless cylinder are provided with sliding rails and sliding blocks, both of the sliding rails are connected with buffers and buffer bases, an ultra-thin cylinder is provided between the two sliding rails, and the upper end of the fixed seat assembly is provided with a suction cup assembly and a cylinder for driving the suction cup assembly to move.

[0017] Furthermore, the spreading mechanism includes a strut assembly, an opening clamp, a mounting frame and a cylinder, the strut assembly is connected to the opening clamp, a limiter is provided on one side of the opening clamp, the strut assembly is arranged at the upper end of the mounting frame, the lower side of the mounting frame is provided with a gear and a rack for driving the spreading mechanism to rotate, and the strut assembly is connected to a rotary cylinder for driving the strut assembly to rotate.

[0018] Furthermore, there are two cloth-covering machines in total, which are symmetrically arranged on both sides of the gantry, and are composed of four cloth-covering machines connected by a frame.

[0019] Furthermore, the cloth cover device is composed of a double-axis cylinder, a proximity switch, and a support plate and a support plate for stabilizing the cloth cover, which are connected through a mounting plate. A sensor is connected to the double-axis cylinder, and the cloth cover is controlled by the double-axis cylinder and the pneumatic finger. The cloth cover device is connected to a limit block assembly, and the limit block assembly is arranged on the lower end bottom plate of the cloth cover device, and one side of the bottom plate is connected to the proximity switch.

[0020] Furthermore, two mold rod robots are provided and are symmetrically distributed on both sides of the welding conveyor table. The mold rod robot includes a robot and a robot clamp. A base and a limit plate are provided at the bottom of the robot. The robot clamp is composed of a mold rod frame, a clamp and a double-axis cylinder. The double-axis cylinder controls the clamp to grasp the mold rod. Four pairs of clamps are provided at the upper and lower ends of the mold rod frame, and are symmetrically distributed side by side at the upper and lower ends of the mold rod frame.

[0021] Furthermore, the welding conveyor platform includes a conveyor platform and a guide rod, and the conveyor platform is provided with a mold rod mounting plate, a pressure block assembly and a lifting plate for placing the mold rod; both ends of the guide rod are connected with clamps, and both ends of the guide rod are connected with double-axis cylinders, and the double-axis cylinders are fixed to one side of the welding conveyor platform through a mounting plate; the lower side of the lifting plate is connected with an ultra-thin cylinder for driving the lifting plate to lift; one end of the mold rod is connected to the pressure block assembly, and the other end is connected to the mold rod placement plate, and the pressure block assemblies on both sides are connected with three-axis cylinders.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] The present invention designs an automatic welding production line for air mattresses. By designing a PLC control system to control a welding device and a grabbing device, automatic welding and automatic clamping of products can be achieved. There is no need for welding workers and production workers to participate in the production process of the products. This can not only improve the quality and efficiency of the welding process, but also save labor and avoid safety accidents. A feeding device and a conveying device are also designed, which do not require manual feeding and product transportation, greatly saving manpower and improving the production efficiency of the entire product. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a structural schematic diagram of the cloth cover machine of the present invention;

[0026] Figure 3 It is a structural schematic diagram of a cloth cover setting machine of the present invention;

[0027] Figure 4 It is a structural schematic diagram of the cloth cover set of the present invention;

[0028] Figure 5 It is a structural schematic diagram of the roller mechanism of the present invention;

[0029] Figure 6 It is a schematic structural diagram of the cloth pressing sleeve mechanism of the present invention;

[0030] Figure 7 This is a schematic diagram of the structure of the suction cup mechanism of the present invention;

[0031] Figure 8 This is a schematic diagram of the structure of the opening mechanism of the present invention;

[0032] Fig. 9 It is a top view of the cloth covering machine of the present invention;

[0033] Fig.10 It is a structural schematic diagram of the cloth covering machine of the present invention;

[0034] Fig.11 It is a schematic diagram of the structure of the cloth cover of the present invention;

[0035] Fig.12 It is a structural schematic diagram of the cloth cover device of the present invention;

[0036] Fig.13 for Fig.12 Rear view of

[0037] Fig.14 This is a schematic diagram of the structure of the mold rod robot of the present invention;

[0038] Fig.15 This is a schematic diagram of the structure of the robot gripper of the present invention;

[0039] Fig.16 It is a structural schematic diagram of the welding conveyor platform of the present invention.

[0040] In the schematic diagram: 1. cloth cover; 2. cloth cover welding device; 3. cloth cover machine; 31. cloth cover assembly machine; 311. roller mechanism; 3111. mounting plate; 3112. pressure plate; 3113. guide block; 3114. roller; 3115. roller mounting plate; 312. baffle; 313. cloth cover pressing mechanism; 3131. double-axis cylinder; 3132. pressure block; 314. cloth cover pulling mechanism; 315. suction cup mechanism; 3151. HFT cylinder; 3152. suction cup assembly; 3153. fixed seat assembly; 3154. RMT rodless cylinder ; 3155. Buffer; 3156. Buffer base; 3157. Slide rail; 3158. SDA ultra-thin cylinder; 316. Opening mechanism; 3161. HRQ rotary cylinder; 3162. HTF large-diameter opening clamp; 3163. Stopper; 3164. Support rod assembly; 3165. Connecting seat; 3166. Rack; 3167. Gear; 3168. Cylinder; 3169. Ultra-thin cylinder; 317. Driving mechanism; 3171. Motor; 3172. Synchronous wheel assembly; 3173. Tensioner; 3174. Synchronous belt;

[0041] 32. Cloth-covering machine; 321. Drag chain; 322. Drag chain plate; 323. Mold rod; 324. Cloth-covering device; 3241. Support plate; 3242. Support plate; 3243. Proximity switch; 3244. Gripper; 3245. Drag chain mounting plate; 3246. Pneumatic finger; 3247. Double-axis cylinder; 3248. Mounting plate; 3249. Limit block; 32410. Sensor; 32411. Limit block assembly; 325. Double-axis cylinder; 326. Fixing seat; 327. Driving device; 328. Bottom plate;

[0042] 33. Mounting frame; 34. Frame; 41. Feeder; 42. Unloading tray; 51. Welding conveyor; 511. Conveyor; 512. Mold rod placement plate; 513. Block assembly; 514. Lifting plate; 515. Hoop; 516. Guide rod; 517. Ultra-thin cylinder; 518. Dual-axis cylinder; 519. Triple-axis cylinder;

[0043] 6. Welding device; 71. Mold rod robot; 711. Limiting plate; 712. Base; 713. Robot; 714. Robot gripper; 7141. Pneumatic finger; 7142. Gripper; 7143. Mold rod frame; 72. Bottom fabric laying robot; 73. Finished product unloading robot. DETAILED DESCRIPTION

[0044] In order to clearly illustrate the technical features of the application scheme of the present invention, the present invention is described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

[0045] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present application is not limited to the specific embodiments disclosed below.

[0046] In addition, in the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are used only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0047] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0048] In the present application, unless otherwise clearly specified and limited, a first feature "above" or "below" a second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, reference terms; "one embodiment", "some embodiments", "example", "specific example", or "some examples" and the like are intended to mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0049] Example 1

[0050] like Figure 1 , Figure 2 and Figure 3 As shown, an automatic welding production line for an air mattress, the air mattress includes a cloth cover 1, the automatic welding production line includes a cloth cover welding device 2, a cloth cover machine 3, a material discharge device, a conveying device, a welding device 6, a gripping device and a control system, the control system is electrically connected to the cloth cover welding device 2, the cloth cover machine 3, the material discharge device, the conveying device, the welding device 6 and the gripping device; wherein,

[0051] The cloth sleeve welding device 2 is symmetrically distributed on one side of the cloth sleeve machine 3;

[0052] The cloth cover machine 3 is composed of a cloth cover set machine 31 and a cloth cover set machine 32 connected by a frame 34; the cloth cover set machine 31 includes a roller mechanism 311, a cloth cover pressing mechanism 313, a cloth cover pulling mechanism 314, a suction cup mechanism 315, a spreading mechanism 316 and a driving mechanism 317; the roller mechanism 311, the cloth cover pressing mechanism 313, the cloth cover pulling mechanism 314, the suction cup mechanism 315, the spreading mechanism 316 and the driving mechanism 317 are connected in sequence and are all arranged on the frame 34;

[0053] The cloth sleeve machine 32 is composed of a cloth sleeve connected by a frame 34; the cloth sleeve includes a drag chain 321 arranged on a drag chain plate 322, and the cloth sleeve also includes a cloth sleeve device 324 and a driving device 327, and the cloth sleeve device 324 and the driving device 327 are arranged on a bottom plate 328, and a fixing seat 326 is provided at one end of the bottom plate 328 away from the cloth sleeve device 324;

[0054] The welding device 6 includes a welding robot and a workbench for welding;

[0055] The conveying device includes a welding conveying platform 51 and a ground rail 52 arranged at the front side of the welding device 6. There are two ground rails 52 arranged at both sides of the welding conveying platform 51.

[0056] The unloading device comprises a feeder 41 and an unloading tray 42 arranged on a gantry, wherein the unloading tray 42 is arranged at the lower side of the feeder 41, and the control system controls the feeder 41 to automatically discharge and automatically cut;

[0057] The grabbing device includes a mold rod robot 71 , a bottom material laying robot 72 and a finished product discharging robot 73 ; the bottom material laying robot 72 and the finished product discharging robot 73 are both symmetrically arranged on the ground rail 52 .

[0058] like Figure 3-Figure 8As shown, in this embodiment, the cloth sleeve welding device 2 automatically sends the cloth sleeve 1 to the cloth sleeve setting machine 31, and the cloth sleeve 1 passes through the roller mechanism 311 on the cloth sleeve setting machine 31. The roller mechanism 311 is provided with a roller 3114 and a guide block 3113 for guiding. The pressing plate 3112 on the upper side of the roller 3114 cooperates with the roller 3114 to press the cloth sleeve 1 flat, and then the driving mechanism 317 below sends the cloth sleeve 1 to the cloth sleeve pressing mechanism 313 and the cloth sleeve pulling mechanism 314. The clamping claw on the cloth sleeve pulling mechanism 314 cooperates with the bracket to pull the cloth sleeve 1. The cloth cover 1 is tightened. At the same time, the cylinder 3131 on the cloth cover pressing mechanism 313 controls the pressing block 3132 to press the cloth cover 1. The cylinder 3131 is connected to a sensor. When the sensor senses that the cloth cover pressing mechanism 313 has pressed the cloth cover 1, the cloth cover pulling mechanism 314 controls the clamping claws through the finger cylinder to tighten and tear the cloth cover 1. At this time, the driving mechanism 317 below sends the cloth cover 1 to the suction cup mechanism 315; the suction cup assembly 3152 on the suction cup mechanism 315 sucks the cloth cover 1 open, and through the suction cup assembly 3152 The connected HFT cylinder 3151 and RMT rodless cylinder 3154 cooperate to control the suction cup assembly 3152 to suck the cloth cover 1 and move. After the sensor senses that the suction cup assembly 3152 has sucked the cloth cover 1 away, the SDA ultra-thin cylinder 3158 on the suction cup mechanism 315 controls the entire suction cup mechanism 315 to slide on the slide rail 3157, sucks the cloth cover 1 away and sends it to the spreading mechanism 316; the support rod assembly 3164 on the spreading mechanism 316 first spreads the cloth cover 1, and uses the gear 3167 and The rack 3166 drives the rack 3166 and the gear 3167 through the control cylinder 3168, so that the expansion mechanism 316 rotates 90 degrees. The expansion mechanism 316 is also provided with a HRQ rotary cylinder 3161. The HRQ rotary cylinder 3161 controls the HFT large-diameter opening clamp 3162 to rotate the support rod assembly 3164 90 degrees. At this time, the cloth cover 1 also changes from horizontal to vertical, and is sent to the cloth cover machine 32 through the driving mechanism 317; the four cloth cover sets on the cloth cover set machine 31 have the same action.

[0059] like Figure 9-13 As shown, the cloth cover 1 is delivered to the cloth cover machine 32, the clamping claw 3244 of the cloth cover device 324 clamps the top of the cloth cover 1, the support plate 3242 is lifted upward and spreads the cloth cover 1, and at the same time, the support plate 3241 on the cloth cover device 324 supports the cloth cover 1, and the cloth cover 1 is automatically put on the mold rod 323 by controlling the dual-axis cylinder 3247 and the pneumatic finger 3246, and the action is cyclically performed in sequence. The cloth cover machines 32 on the left and right sides are symmetrically arranged, and the four cloth cover actions are consistent.

[0060] like Fig.14 and Fig.15As shown, after the cloth cover 1 is automatically put on the mold rod 323, the control system controls the mold rod robot 71 to grab the mold rod 323 with the cloth cover 1, and fix the mold rod 323 on one side of the robot gripper 714. At the same time, the other side of the robot gripper 714 has pre-gripped the empty mold rod 323. The control system controls the robot gripper 714 of the mold rod robot 71 to flip 180 degrees, and place the empty mold rod 323 on the cloth cover machine 3, and the cloth cover machine 3 continues to repeat the action. Subsequently, the mold rod robot 71 waits for the PLC instruction of the control system, and places the mold rod 323 with the cloth cover 1 on the welding conveyor 51. The mold rod robots 71 on both sides of the welding conveyor 51 move in unison.

[0061] like Figure 1 and Fig.16 As shown, the control system controls the feeder 41 on the gantry to automatically discharge and cut the fabric. At the same time, the bottom fabric robot 72 set on the ground rail 52 pulls the bottom fabric to the welding conveyor 51 through the guide rod 516 of the welding conveyor 51, and then the two bottom fabric robots 72 return to the safe position; the control system controls the mold rod robot 71 equipped with the mold rod 323 to place the mold rod 323 with the cloth cover 1 on the welding conveyor 51, and the pressing block assembly 513 on the conveyor 511 presses the mold rod 323, and then the mold rod robot 71 returns to the safe position, and the molds on the left and right sides are The rod robot 71 moves in unison; the welding conveyor table 51 is transported to the welding device 6, and the cloth cover 1 on the mold rod 323 is welded by a high-frequency welding machine. After the welding work is completed, the welding conveyor table 51 is transported out, and the control system issues a command to control the mold rod robot 71 to pull out the mold rod 323 in the welded workpiece, and the ultra-thin cylinder 517 on the welding conveyor table 51 drives the lifting plate 514 to lift the finished product. At this time, the control system controls the finished product robot 73 to move the finished product on the welding conveyor table 51 through the guide rod 516 and then down to the unloading tray 42, and the overall action of the production line follows this cycle.

[0062] Example 2

[0063] The following is a second embodiment of an automatic welding production line for an air mattress of the present invention. This embodiment is similar to Embodiment 1, but differs in that it also includes a detection device, which includes a sensor and a visual detection mechanism. The detection device is arranged on one side of the ground rail 52 close to the welding conveyor platform 51, and the detection device is also electrically connected to the control system.

[0064] In this embodiment, the detection device is used to detect the welded finished parts and to preliminarily control the welding quality. Specifically, a visual detection mechanism is used to detect the welding quality. On the basis of adding a detection device, a clamp is added to the lower finished product robot 73, that is, a cylinder is added to the original lower finished product robot 73 structure to achieve clamping and fixation of the workpiece. When the detection device detects that the cloth sleeve welding is unqualified, the control system controls the lower finished product robot 73 to clamp out the unqualified welded products.

[0065] The same or similar numbers in the drawings correspond to the same or similar parts; the positional relationships described in the drawings are only for illustrative purposes and should not be construed as limitations on this patent. Obviously, the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not limitations on the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. An automatic welding production line for an air mattress, characterized in that: It includes a cloth sleeve welding device, a cloth sleeve machine, a feeding device, a conveying device, a welding device, a grasping device and a control system, wherein the control system is electrically connected to the cloth sleeve welding device, the cloth sleeve machine, the feeding device, the conveying device, the welding device and the grasping device; wherein, The cloth sleeve welding device is symmetrically distributed on one side of the cloth sleeve machine; The cloth cover machine is composed of a cloth cover set machine and a cloth cover set machine connected by a frame; the cloth cover set machine includes a roller mechanism, a cloth cover pressing mechanism, a cloth cover pulling mechanism, a suction cup mechanism, a spreading mechanism and a driving mechanism; the roller mechanism, the cloth cover pressing mechanism, the cloth cover pulling mechanism, the suction cup mechanism, the spreading mechanism and the driving mechanism are connected in sequence and are all arranged on the frame; The cloth sleeve machine is composed of a cloth sleeve connected by a frame; the cloth sleeve includes a drag chain arranged on a drag chain plate, the cloth sleeve also includes a cloth sleeve device and a driving device, and the cloth sleeve device and the driving device are arranged on a bottom plate, and a fixing seat is provided at one end of the bottom plate away from the cloth sleeve device; The welding device comprises a welding robot and a workbench for welding; The conveying device comprises a welding conveying platform and a ground rail arranged at the front side of the welding device, and the ground rails have two in total and are symmetrically arranged on both sides of the welding conveying platform; The unloading device comprises an unloading tray and a feeder arranged on a gantry, the unloading tray is arranged at the lower side of the feeder, and the control system controls the feeder to automatically discharge and automatically cut; The grabbing device comprises a mold rod robot, a bottom material laying robot and a finished product discharging robot; the bottom material laying robot and the finished product discharging robot are both symmetrically arranged on the ground rail.

2. The automatic welding production line for air mattresses according to claim 1 is characterized in that: There are two cloth cover fitting machines in total, which are symmetrically arranged on both sides of the gantry. The cloth cover fitting machine is composed of four cloth cover fittings connected by a mounting frame.

3. The automatic welding production line for air mattresses according to claim 2 is characterized in that: The driving mechanism is composed of a synchronous wheel assembly, a motor, a synchronous belt and a tensioning device. The driving mechanism is arranged on the lower side of the baffle and drives the cloth sleeve to move on the cloth sleeve setting machine.

4. The automatic welding production line for air mattresses according to claim 2 is characterized in that: The roller mechanism includes a roller, a pressure plate and a guide block. The roller is connected to the guide block and fixed on the mounting plate through a roller mounting plate. The pressure plate is arranged at the upper end of the roller and is used to adjust the distance between the top end or the bottom end of the guide block and the pressure plate.

5. The automatic welding production line for air mattresses according to claim 2 is characterized in that: The suction cup mechanism includes a rodless cylinder and a fixed seat assembly slidably arranged on the upper end of the rodless cylinder, both ends of the lower side of the rodless cylinder are provided with sliding rails and sliding blocks, both of the sliding rails are connected with buffers and buffer bases, an ultra-thin cylinder is arranged between the two sliding rails, and the upper end of the fixed seat assembly is provided with a suction cup assembly and a cylinder for driving the suction cup assembly to move.

6. The automatic welding production line for air mattresses according to claim 2 is characterized in that: The stretching mechanism includes a strut assembly, an opening clamp, a mounting frame and a cylinder. The strut assembly is connected to the opening clamp. A limiter is provided on one side of the opening clamp. The strut assembly is arranged at the upper end of the mounting frame. A gear and a rack for driving the stretching mechanism to rotate are provided on the lower side of the mounting frame. The strut assembly is connected to a rotary cylinder for driving the strut assembly to rotate.

7. The automatic welding production line for air mattresses according to claim 1 is characterized in that: There are two cloth-covering machines in total, which are symmetrically arranged on both sides of the gantry and consist of four cloth-covering machines connected by a frame.

8. The automatic welding production line for air mattresses according to claim 7 is characterized in that: The cloth sleeve device is composed of a double-axis cylinder, a proximity switch, and a support plate and a support plate for stabilizing the cloth sleeve, which are connected through a mounting plate. A sensor is connected to the double-axis cylinder, and the cloth sleeve is controlled by the double-axis cylinder and the pneumatic finger. The cloth sleeve device is connected to a limit block assembly, and the limit block assembly is arranged on the lower end bottom plate of the cloth sleeve device, and one side of the bottom plate is connected to the proximity switch.

9. The automatic welding production line for air mattresses according to claim 1, characterized in that: Two mold rod robots are provided and symmetrically distributed on both sides of the welding conveyor table. The mold rod robot includes a robot and a robot clamp. A base and a limit plate are provided at the bottom of the robot. The robot clamp consists of a mold rod frame, a clamp and a double-axis cylinder. The double-axis cylinder controls the clamp to grasp the mold rod. Four pairs of clamps are provided at the upper and lower ends of the mold rod frame, and are symmetrically distributed side by side at the upper and lower ends of the mold rod frame.

10. The automatic welding production line for air mattresses according to claim 9, characterized in that: The welding conveyor platform includes a conveyor platform and a guide rod, and the conveyor platform is provided with a mold rod mounting plate, a pressure block assembly and a lifting plate for placing the mold rod; both ends of the guide rod are connected with clamps, and both ends of the guide rod are connected with double-axis cylinders, and the double-axis cylinders are fixed to one side of the welding conveyor platform through a mounting plate; the lower side of the lifting plate is connected with an ultra-thin cylinder for driving the lifting plate to lift; one end of the mold rod is connected to the pressure block assembly, and the other end is connected to the mold rod placement plate, and the pressure block assemblies on both sides are connected with three-axis cylinders.

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