Upholstered furniture processing production line

Abstract

The invention provides an upholstered furniture processing production line which comprises a gluing conveying frame and a bonding conveying frame, the gluing conveying frame is used for conducting gluing treatment on a sponge body in furniture, and after the glued sponge is conveyed to the bonding conveying frame, an outer skin face used for wrapping the sponge body is bonded; a gluing conveying belt is arranged in the gluing conveying frame, and the limiting assembly is arranged above the gluing conveying frame and used for pressing a formed sponge body, so that the sponge body is completely attached to the upper surface of the gluing conveying belt, and therefore it is guaranteed that the distances between gluing sides on the two sides of the sponge body and glue nozzles are the same as much as possible during glue spraying operation; finally, glue spraying is uniform, and the situation that excessive glue liquid is generated in the bonding process, and glue overflowing is caused is prevented; a traction roller used for pulling out the outer skin surface is arranged above the bonding conveying frame, after glue is sprayed, the pressing roller is pressed downwards, then the outer skin surface is attached to the surface of the sponge body, and the traction roller is started to drive the outer skin surface to move till bonding of the outer skin surface is completed.

Description

Technical Field

[0001] The invention relates to the technical field of furniture production, in particular to a soft furniture processing production line. Background Art

[0002] Soft furniture mainly refers to furniture with sponge and fabric as the main body. The manufacturing process of soft furniture mainly relies on manual craftsmanship. The main processes include nailing the inner frame, laying the base cloth, gluing the sponge, cutting, sewing the cover and the final assembly process. Soft furniture is a type of furniture, including sofas and soft beds made of casual fabrics, genuine leather, imitation leather, and leather and fabric. The existing soft furniture production line includes a base laying area, a spraying area, a packaging area and an assembly area. Each area is equipped with workers for corresponding production operations, and the materials required for the production operation must be carried by the operators themselves. The various workstations are scattered, resulting in low production efficiency and low safety.

[0003] The publication number "CN110605047A" provides a soft furniture processing production line, including a frame, a conveying mechanism arranged along the upper part of the frame, a cleaning mechanism located in the middle of the frame, and a stirring mechanism located in the lower part of the frame; the conveying mechanism includes a bracket fixed on the upper part of the frame, a conveying chain distributed along the bracket, a plurality of fixing clips fixed on the conveying chain, and a sprocket for driving the chain to rotate, and the chain plate of the chain is arranged horizontally; the cleaning mechanism includes a mounting plate fixed on the middle part of the frame, a plurality of nozzles arranged on the mounting plate, a liquid storage tank, and a water pump, the liquid inlet end of the water pump is connected to the liquid storage tank, and the liquid outlet end of the water pump is connected to the nozzle. The present invention solves the problem of low stirring efficiency in the prior art.

[0004] However, the above device still has the following problems during implementation:

[0005] 1. The sponge in the soft furniture lacks a limit device during the gluing process. During the spraying or manual gluing process, displacement often occurs, and there may be uneven gluing or insufficient or missed gluing in some areas;

[0006] 2. In the process of gluing the outer surface of the sponge, there is a lack of a flattening device. During gluing, wrinkles often appear on the outer surface, affecting the quality of the gluing. Repeated gluing will inevitably cause damage to the outer surface and consume unnecessary production time. Summary of the invention

[0007] The object of the present invention is to provide a soft furniture processing production line to solve the problems raised in the above background technology.

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] A soft furniture processing production line includes a gluing conveying frame and a bonding conveying frame. The gluing conveying frame is used to gluing a sponge in the furniture. After the glued sponge is conveyed to the bonding conveying frame, the outer skin used to wrap the sponge is bonded. A gluing conveying belt is arranged in the gluing conveying frame, and a bonding conveying belt is arranged in the bonding conveying frame. A rotating conveying platform is arranged between the gluing conveying frame and the gluing conveying belt.

[0010] A glue spraying assembly is arranged in the glue coating conveying frame, and the glue spraying assembly includes two groups of glue spraying pipes, and the glue outlet ends of the glue spraying pipes are connected to glue nozzles, and the lower surface outlets of the glue nozzles are located on the glue coating sides of both sides of the sponge body;

[0011] A limiter assembly is arranged above the glue conveying frame and is used to press the formed sponge body so that the sponge body is completely attached to the upper surface of the glue conveying belt, thereby ensuring that during the glue spraying operation, the glue coating sides on both sides of the sponge body are as close as possible to the glue nozzle, and finally the glue spraying is uniform, preventing the generation of excess glue during bonding, resulting in glue overflow;

[0012] A traction roller for pulling out the outer skin surface and a pressing roller for laminating the outer skin surface on the surface of the sponge are arranged above the bonding and conveying frame. After spraying the glue, the pressing roller is pressed down to laminar the outer skin surface on the surface of the sponge. The traction roller is started to drive the outer skin surface to move until the bonding of the outer skin surface is completed.

[0013] Preferably, the glue spraying assembly includes a glue box, which is fixedly connected to a glue coating and conveying frame, and a pump glue box is symmetrically arranged above the glue box. A glue pump is connected between two groups of pump glue boxes, and the glue spraying pipe is connected and arranged on the top of the pump glue box. The glue nozzle is connected to the glue spraying pipe through several groups of branch pipes, and a visual window is arranged on one side of the glue box.

[0014] Preferably, the limit assembly includes two groups of limit frames, and an adjusting rod is arranged on one side between the two groups of limit frames. The adjusting rod includes an internal threaded tube and a threaded rod. One end of the internal threaded tube is rotatably connected to the inner side of the limit frame, and one end of the threaded rod is fixedly connected to the inner side of the other group of limit frames, and the other end of the threaded rod is threadedly connected to the internal threaded tube, so that the limit assembly can adjust the distance between the two groups of limit frames according to the size of the sponge, so as to suppress the sponge to the maximum extent.

[0015] Preferably, a telescopic connection piece is further provided between the two groups of the limiting frames, and the telescopic connection piece comprises square steel and a square tube. The square steel is slidably connected in the square tube, and the ends of the square steel and the square tube are respectively connected to the inner sides of the two groups of limiting frames.

[0016] Preferably, a connecting plate is fixedly connected to one side of the square tube, a cylinder is connected to the bottom surface of the connecting plate, a first electric slide is symmetrically arranged on the upper surface of the glue coating and conveying frame, and the base end of the cylinder is fixedly mounted on a slider of the first electric slide.

[0017] Preferably, the limiting assembly includes a suction cup, a connecting rod surface of the suction cup is provided with a thread, the suction cup is connected to the limiting frame by means of an adjustable threaded portion, so as to facilitate adjustment according to the thickness of the sponge body, and the suction cup is fixedly connected to an external air pump.

[0018] Preferably, two groups of second electric slides are symmetrically arranged above the bonding and conveying frame, and a vertical plate is fixedly installed on the slider of the second electric slide. The traction roller is rotatably installed between the two groups of vertical plates. A gantry is fixedly installed at one end of the bonding and conveying frame, and a winding roller is rotatably installed in the gantry. The surface of the winding roller is rolled up with an outer skin surface for wrapping the sponge body, and one end of the outer skin surface to be bonded is fixed to the outer surface of the traction roller.

[0019] Preferably, the lamination roller is arranged between the winding roller and the traction roller, and a lifting drive assembly is arranged between the two ends of the lamination roller and the bonding conveying frame, the lifting drive assembly includes a bracket, a lifting motor is fixedly installed in the bracket, the output shaft end of the lifting motor is connected to a screw rod, the two ends of the lamination roller are connected to shaft end connecting seats, and the screw rod is rotatably connected to the shaft end connecting seat through an internal threaded sleeve.

[0020] Preferably, the rotating conveying platform includes a reversing bracket and a reversing turntable rotatably connected above the reversing bracket, a positioning shaft is fixedly connected to the center position of the bottom surface of the reversing turntable, the positioning shaft is rotatably connected to the center position of the reversing bracket, a motor is installed at the bottom of the reversing bracket through a motor bracket, a driving gear is fixedly installed at the output shaft end of the motor, a large gear is fixedly installed on the surface of the positioning shaft, and the large gear is meshed with the driving gear.

[0021] Preferably, there are several groups of bellows in an equidistant array in the bonding and conveying frame, the top of the bellows is provided with an air outlet, the bottom of the air outlet is slidably installed with a baffle, a linkage assembly is arranged between the baffle and the large gear, the linkage assembly includes a second connecting rod and a first connecting rod, the first connecting rod is pin-connected with the second connecting rod through a first movable pin shaft, the baffle is connected in series through a linkage rod, one end of the linkage rod is fixedly connected with a fisheye joint, the first connecting rod and the fisheye joint are pin-connected, the upper surface of the large gear is rotatably connected with a fixed pin shaft through a bearing, one end of the second connecting rod is fixed to the surface of the fixed pin shaft, and the reversing turntable is driven to rotate by driving the large gear. When the reversing turntable rotates to be consistent with the conveying direction of the bonding and conveying frame, the baffle is moved to be separated from the air outlet through the linkage assembly, so that air can be discharged. After gluing the outer skin surface, the glue is air-dried to speed up the bonding speed.

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

[0023] 1. In the present invention, considering that the sponge has a light weight and may be displaced by a slight external force, a limiting component is provided above the glue conveyor belt, and a plurality of groups of suction cups are provided inside the limiting component, so that the sponge is placed on the upper surface of the glue conveyor belt in the glue conveying frame. During the process of conveying and spraying glue, the mobile suction cup provided above the glue conveying frame is used to press and limit the sponge, so that the sponge can be placed on the upper surface of the glue conveyor belt, which can ensure that the sponge is displaced during the process of conveying and spraying glue, and ensure uniform glue spraying;

[0024] 2. In the present invention, a traction roller, a pressing roller and a winding roller are sequentially arranged at one end of the bonding conveying frame. The traction roller is used to stretch the outer skin surface wrapped on the surface of the winding roller. After the pressing roller is pressed down, a tensioning force is generated between the traction roller and the pressing roller. After the outer skin surface is flattened, it is attached to the surface of the sponge, and the traction roller and the sponge move forward synchronously, which effectively ensures the flatness of the bonding;

[0025] 3. In the present invention, a linkage assembly is provided between the rotating conveying platform and the bonding conveying frame. When the gluing conveying frame and the bonding conveying frame are arranged in a vertical direction, when the rotating conveying platform conveys the sponge from the gluing conveying frame to the bonding conveying frame, the reversing turntable rotates, and the second connecting rod and the first connecting rod are rotated in turn. One end of the first connecting rod is connected to the linkage rod through a fisheye joint, thereby driving the linkage rod to pull the baffle, and the baffle slides on the inner top wall of the bellows, thereby realizing the opening of the air outlet. When the reversing turntable rotates to be consistent with the conveying direction of the bonding conveying frame, the baffle is moved to be separated from the air outlet through the linkage assembly, so that air can be discharged. After gluing the outer skin surface, the glue is air-dried to accelerate the bonding speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0027] Figure 2 It is a schematic diagram of the three-dimensional structure of the limiting component of the present invention;

[0028] Figure 3 It is a schematic diagram of the three-dimensional structure of the glue spraying assembly of the present invention;

[0029] Figure 4 It is a schematic diagram of the main three-dimensional structure of the rotating conveying platform of the present invention;

[0030] Figure 5 It is a bottom-up three-dimensional structural schematic diagram of the rotary conveying platform of the present invention;

[0031] Figure 6It is a schematic diagram of the three-dimensional structure of the linkage assembly of the present invention;

[0032] Figure 7 For the present invention Figure 6 The enlarged structural diagram of part A in the middle;

[0033] Figure 8 This is a schematic diagram of a three-dimensional structure of a baffle sliding connection according to the present invention;

[0034] Fig. 9 It is a schematic diagram of the three-dimensional structure of the traction assembly of the present invention;

[0035] Fig.10 It is a schematic diagram of a partial three-dimensional structure of the bellows arrangement of the present invention;

[0036] Fig.11 It is a schematic diagram of the internal structure of the bonding and conveying frame of the present invention.

[0037] In the figure: 1. Glue coating conveying frame; 2. Glue coating conveying belt; 3. Suction cup; 4. Glue box; 5. First active conveying shaft; 6. First passive conveying shaft; 7. Limiting frame; 8. Glue spraying hose; 9. Cylinder; 10. First electric slide; 11. Guide tube; 12. Guide rod; 13. Connecting plate; 14. Internal threaded pipe; 15. Threaded rod; 16. Square steel; 17. Square pipe; 18. Pump glue box; 19. Bonding conveying frame; 20. Visual window; 21. Glue pump; 22. Glue nozzle; 23. Reversing bracket; 24. Reversing turntable; 25. Reversing conveying belt; 26. Air outlet; 27. Second active conveying shaft; 28. Second passive Conveying shaft; 29, large gear; 30, driving gear; 31, motor; 32, motor bracket; 33, bellows; 34, linkage rod; 35, fisheye joint; 36, first connecting rod; 37, fixed pin shaft; 38, first movable pin shaft; 39, second connecting rod; 40, second movable pin shaft; 41, connecting block; 42, baffle; 43, guide bar; 44, positioning shaft; 45, bonding conveyor belt; 46, floating roller; 47, second electric slide; 48, winding roller; 49, vertical plate; 50, traction roller; 51, pressing roller; 52, screw rod; 53, gantry; 54, bracket; 55, shaft end connecting seat; 56, lifting motor. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] See also Figure 1-11 , the present invention provides a technical solution:

[0040] Embodiment 1:

[0041] A soft furniture processing production line includes a glue coating conveying frame 1 and a bonding conveying frame 19. The glue coating conveying frame 1 is used to coat the sponge in the furniture with glue. After the glued sponge is conveyed to the bonding conveying frame 19, the outer skin used to wrap the sponge is bonded. A glue coating conveying belt 2 is arranged in the glue coating conveying frame 1. A bonding conveying belt 45 is arranged in the bonding conveying frame 19. A rotating conveying platform is arranged between the glue coating conveying frame 1 and the glue coating conveying belt 2. A glue spraying assembly is arranged in the glue coating conveying frame 1. The glue spraying assembly includes two groups of glue spraying pipes 8. The glue outlet end of the glue spraying pipe 8 is connected to a glue liquid nozzle 22. The lower surface outlet of the glue liquid nozzle 22 is located at the glue coating side of both sides of the sponge.

[0042] In this embodiment, a glue coating conveying frame 1 is used to place the sponge to be sprayed with glue. A glue coating conveying belt 2 is arranged inside the glue coating conveying frame 1. The sponge is placed in a close relationship on the upper surface of the glue coating conveying belt 2. Glue spraying tubes 8 are arranged on both sides of the glue coating conveying frame 1. Driven by the glue coating conveying belt 2, the glue spraying tubes 8 apply glue to the surfaces of both sides of the sponge. The sponge is then transported to the bonding conveying frame 19. Driven by the bonding conveying belt 45, the outer skin surface is laid and bonded. While bonding, cold air is blown through the cold air duct, which can prevent the sponge from being deformed due to high-temperature drying and accelerate the drying speed of the glue liquid, thereby ensuring that the bonding of the outer skin surface and the sponge is completed before being transported to the next process.

[0043] The glue spraying assembly includes a glue box 4, which is fixedly connected to the glue coating and conveying frame 1. Pump glue boxes 18 are symmetrically arranged above the glue box 4. A glue pump 21 is connected between the two groups of pump glue boxes 18. A glue spraying pipe 8 is connected and arranged on the top of the pump glue box 18. The glue nozzle 22 is connected to the glue spraying pipe 8 through several groups of branch pipes. A visual window 20 is arranged on one side of the glue box 4.

[0044] Specifically, a glue box 4 is provided at one side of the bottom of the glue conveying frame 1, and the glue box 4 is filled with glue. The glue pump 21 is started to pump the glue into the glue pump box 18, and the glue is pumped out from the glue nozzle 22 through the glue spraying pipe 8, and evenly sprayed on the glue coating side of the sponge.

[0045] The limiting component is arranged above the glue conveying frame 1, and is used to press the formed sponge body so that the sponge body is completely attached to the upper surface of the glue conveying belt 2, thereby ensuring that during the glue spraying operation, the glue coating sides on both sides of the sponge body are as close as possible to the glue nozzle 22, and finally the glue spraying is uniform, preventing the generation of excess glue during bonding, resulting in glue overflow;

[0046] In the present embodiment, the sponge is placed on the upper surface of the glue conveyor belt 2 in the glue conveying frame 1. Considering that the sponge has a relatively light weight, its position may be shifted if slightly disturbed by external forces. Therefore, during the process of conveying the spray glue, the mobile suction cup 3 arranged above the glue conveying frame 1 is used to press and limit the sponge, so that the sponge can be placed in close contact with the upper surface of the glue conveyor belt 2, which can ensure that the sponge is displaced during the process of conveying the spray glue and ensure uniform glue spraying.

[0047] It should be noted that providing the suction cup 3 to absorb and press the sponge can not only reduce the pressure exerted by the limiting component on the sponge to cause deformation of the sponge, but also reduce the contact area between the limiting component and the sponge, further preventing deformation of the sponge.

[0048] The limiting component includes a suction cup 3, a connecting rod surface of which is provided with threads, and the suction cup 3 is connected to the limiting frame 7 by means of adjustable threads of the threaded portion, so as to facilitate adjustment according to the thickness of the sponge body, and the suction cup 3 is fixedly connected to an external air pump.

[0049] It should be noted that the connecting rod at the top of the suction cup 3 is set as a threaded rod, and the threaded connection structure of the threaded rod and the limit frame 7 can adjust the distance between the suction cup 3 and the sponge, which is convenient for adjustment according to the thickness of the sponge.

[0050] The limiting assembly includes two groups of limiting frames 7, and an adjusting rod is arranged on one side between the two groups of limiting frames 7. The adjusting rod includes an internal threaded tube 14 and a threaded rod 15. One end of the internal threaded tube 14 is rotatably connected to the inner side of the limiting frame 7, and one end of the threaded rod 15 is fixedly connected to the inner side of the other group of limiting frames 7, and the other end of the threaded rod 15 is threadedly connected to the internal threaded tube 14, so that the limiting assembly can adjust the distance between the two groups of limiting frames 7 according to the size of the sponge, so as to suppress the sponge to the maximum extent.

[0051] Specifically, considering that the size of the sponge body may change according to the order, an adjusting rod is provided between the limit frames 7, and the threaded rod 15 is threadedly connected to the internal threaded tube 14. When the threaded rod 15 is rotated, the length of the threaded rod 15 screwed into the internal threaded tube 14 can be changed, and finally the spacing between the two sets of limit frames 7 is realized. Since the suction cup 3 is installed under the limit frame 7, the adjusting rod can change the distance between the two rows of suction cups 3, so that the limit assembly can be pressed according to the size of the sponge body, avoiding the displacement or warping of the sponge body due to external force during the glue spraying process, thereby ensuring that the glue spraying of the sponge body is uniform, and providing basic guarantee for the subsequent adhesion of the outer skin surface.

[0052] A telescopic connector is also provided between the two groups of limit frames 7, and the telescopic connector includes a square steel 16 and a square tube 17. The square steel 16 is slidably connected in the square tube 17, and the ends of the square steel 16 and the square tube 17 are respectively connected to the inner sides of the two groups of limit frames 7. A connecting plate 13 is fixedly connected to one side of the square tube 17, and a cylinder 9 is connected to the bottom surface of the connecting plate 13. A first electric slide 10 is symmetrically provided on the upper surface of the glue coating conveying frame 1, and the base end of the cylinder 9 is fixedly installed on the slider of the first electric slide 10.

[0053] In this embodiment, since the limit frame 7 needs to follow the glue coating conveyor belt 2 to drive the sponge to move synchronously, a slidingly connected telescopic connector is provided between the two sets of limit frames 7, which can not only follow the adjustment of the adjustment rod, but also can be connected to the cylinder 9 by the square tube 17. When the cylinder 9 is started, the limit frame 7 and the suction cup 3 in the limit frame 7 can be driven to rise and fall, which is convenient for the sponge to be placed and the height of the suction cup 3 to be adjusted.

[0054] It should be noted that the base of the cylinder 9 is connected to the slider of the first electric slide 10. Therefore, starting the first electric slide 10 can drive the cylinder 9 and the limit assembly to suppress the sponge to move synchronously.

[0055] A traction roller 50 for pulling out the outer skin surface and a pressing roller 51 for laminating the outer skin surface on the surface of the sponge are arranged above the bonding and conveying frame 19. After spraying the glue, the pressing roller 51 is pressed down to laminar the outer skin surface on the surface of the sponge. The traction roller 50 is started to drive the outer skin surface to move until the bonding of the outer skin surface is completed.

[0056] Specifically, two groups of second electric slides 47 are symmetrically arranged above the bonding conveying frame 19, and vertical plates 49 are fixedly installed on the sliders of the second electric slides 47. A traction roller 50 is rotatably installed between the two groups of vertical plates 49. A gantry 53 is fixedly installed at one end of the bonding conveying frame 19, and a winding roller 48 is rotatably installed in the gantry 53. The surface of the winding roller 48 is wound with an outer skin surface for wrapping the sponge body, and one end of the outer skin surface to be bonded is fixed to the outer surface of the traction roller 50. The pressing roller 51 is arranged between the winding roller 48 and the traction roller 50, and a lifting drive assembly is arranged between the two ends of the pressing roller 51 and the bonding conveying frame 19. The lifting drive assembly includes a bracket 54, and a lifting motor 56 is fixedly installed in the bracket 54. The output shaft end of the lifting motor 56 is connected to a screw rod 52, and the two ends of the pressing roller 51 are connected to a shaft end connecting seat 55. The screw rod 52 is rotatably connected to the shaft end connecting seat 55 through an internal threaded sleeve.

[0057] In this embodiment, the winding roller 48 is rotatably installed in the gantry 53, and the gantry 53 is set up at the connection end of the bonding conveying frame 19 and the rotating conveying platform. The sponge with glue is sent into the bonding conveying frame 19 after being reversed by the rotating conveying platform, and the lifting motor 56 is started. The lifting motor 56 drives the screw rod 52 to rotate. Since both sides of the pressing roller 51 are connected to the two ends of the pressing roller 51 through the shaft end connecting seat 55 with an internal thread sleeve, the lifting motor 56 can drive the pressing roller 51 to move up and down to adapt to sponges of different thicknesses. When the sponge is transferred to a vertical position exceeding the traction roller 50, the pressing roller 51 is driven by the screw rod 52 to press down the outer skin surface and fit the sponge, and then the second electric slide 47 is started to drive the traction roller 50 to move, and the traction roller 50 and the bonding conveyor belt 45 move synchronously to drive the outer skin surface to unfold. At the same time, after the pressing roller 51 moves down, the outer skin surface fits on the surface of the sponge and is bonded with the glue on both sides of the sponge.

[0058] It should be noted that the traction roller 50 is used to stretch the outer skin surface wrapped on the surface of the winding roller 48. After the pressing roller 51 is pressed down, a mutually pulling tension force is generated between the traction roller 50 and the pressing roller 51. After the outer skin surface is flattened, it is attached to the surface of the sponge, and the traction roller 50 and the sponge move forward synchronously, which effectively ensures the flatness of the adhesion.

[0059] The rotating conveyor platform includes a reversing bracket 23 and a reversing turntable 24 rotatably connected above the reversing bracket 23. A positioning shaft 44 is fixedly connected to the center position of the bottom surface of the reversing turntable 24. The positioning shaft 44 is rotatably connected to the center position in the reversing bracket 23. A motor 31 is installed at the bottom of the reversing bracket 23 through a motor bracket 32. A driving gear 30 is fixedly installed at the output shaft end of the motor 31. A large gear 29 is fixedly installed on the surface of the positioning shaft 44, and the large gear 29 is meshed with the driving gear 30.

[0060] Specifically, the reversing bracket 23 is positioned between the gluing conveying frame 1 and the bonding conveying frame 19. The conveying directions between the gluing conveying frame 1 and the bonding conveying frame 19 can be the same, or can be set vertically. The conveying frame can be arranged according to the space of the production plant using a rotating conveying table.

[0061] The motor 31 is started to drive the entire reversing turntable 24 to rotate through the meshing of the large gear 29 and the driving gear 30, so as to change the conveying direction of the sponge. A reversing conveyor belt 25 for conveying the sponge is installed in the reversing turntable 24.

[0062] Embodiment 2:

[0063] Based on the first embodiment, considering that when the sponge and the outer skin are bonded, if the glue cannot be air-dried in time, cracks may occur during the bonding process, or the bonding time may be prolonged, thereby reducing production efficiency. Therefore, in the present embodiment, a plurality of groups of bellows 33 are arranged in an equidistant array within the bonding conveying frame 19, and an air outlet 26 is provided on the top of the bellows 33.

[0064] In this embodiment, a bellows 33 is provided. When the sponge enters the bonding conveying frame 19 and starts the bonding action, the fan connected to the outside of the bellows 33 is started, and the wind flows from the top to the bottom through the air outlet 26 to blow toward the sponge for dry glue treatment.

[0065] It should be noted that a cold air blower is set at this time to prevent the sponge from deforming due to hot air drying the glue.

[0066] Embodiment three:

[0067] Based on the second embodiment, considering that the moment when the fan is started / stopped will generate a lot of energy consumption, but turning on the fan all the time will also generate considerable energy consumption, therefore, in this embodiment, the following structure is set:

[0068] A baffle 42 is slidably installed at the bottom of the air outlet 26, and a linkage assembly is arranged between the baffle 42 and the large gear 29. The linkage assembly includes a second connecting rod 39 and a first connecting rod 36. The first connecting rod 36 is pin-connected to the second connecting rod 39 through a first movable pin shaft 38. The baffle 42 is connected in series through a linkage rod 34. A fisheye joint 35 is fixedly connected to one end of the linkage rod 34. The first connecting rod 36 and the fisheye joint 35 are pin-connected. A fixed pin shaft 37 is rotatably connected to the upper surface of the large gear 29 through a bearing. One end of the second connecting rod 39 is fixed to the surface of the fixed pin shaft 37. The reversing turntable 24 is driven to rotate by driving the large gear 29. When the reversing turntable 24 rotates to be consistent with the conveying direction of the bonding conveying frame 19, the baffle 42 is moved to be separated from the air outlet 26 through the linkage assembly, so that air can be discharged. After adhering to the outer skin surface, the glue is air-dried to speed up the bonding speed.

[0069] It should be noted that the air outlet 26 located at the center is not provided with a baffle 42 and is always open. The fan is in a normally-on state, and the air volume is small, so as to keep the energy consumption to a minimum.

[0070] When the glue coating conveying frame 1 and the bonding conveying frame 19 are arranged in a vertical direction, when the rotating conveying platform conveys the sponge from the glue coating conveying frame 1 to the bonding conveying frame 19, the reversing turntable 24 rotates, and the second connecting rod 39 rotates to drive the first connecting rod 36 to rotate. One end of the first connecting rod 36 is connected to the linkage rod 34 through the fisheye joint 35. A first movable pin 38 is provided between the fisheye joint 35 and the first connecting rod 36, so that the linkage rod 34 is used to pull the baffle 42 to slide in the guide bar 43. The guide bar 43 is fixedly installed on both sides of the inner wall of the bellows 33 to ensure that the baffle 42 slides in close contact with the inner top wall of the bellows 33, thereby achieving the blocking or opening of the air outlet 26;

[0071] It should be noted that, except for the bellows 33 in the center position which is always open, a connecting block 41 is provided on the bottom surface of the baffle 42, and the linkage rod 34 is connected through the connecting block 41. Therefore, the linkage rods 34 in the remaining bellows 33 are connected as a whole through the connecting plate (detachable structure), so as to realize the linkage of the baffles 42 in multiple groups of bellows 33.

[0072] When the conveying direction of the rotating conveying table rotates to be consistent with the conveying direction of the bonding conveying frame 19, the baffle 42 can be removed through the linkage component to open the air outlet 26. This is the bonding process period of the outer skin surface and the sponge body, which not only speeds up the drying and bonding speed of the glue, but also avoids the energy consumption caused by starting / stopping the fan.

[0073] If necessary, small holes can be opened at equal intervals in the adhesive conveyor belt 45 to ensure rapid penetration of air flow.

[0074] Working principle: During the use of this device:

[0075] According to the space of the factory building, the gluing conveying frame 1 and the bonding conveying frame 19 are arranged perpendicular to each other in the conveying direction;

[0076] First, place the sponge on the upper surface of the glue conveyor belt 2 in the glue conveying frame 1. According to the length, width and height of the sponge, start the cylinder 9 to lift the entire limit assembly to facilitate the distance between the suction cups 3 in the limit frame 7. Specifically, by rotating the threaded rod 15, the length of the threaded rod 15 screwed into the internal threaded tube 14 can be changed, and finally the distance between the two groups of limit frames 7 is achieved. Since the suction cup 3 is installed under the limit frame 7, the adjustment rod can change the distance between the two rows of suction cups 3, so that the limit assembly can be pressed according to the size of the sponge, avoiding displacement or warping of the sponge due to external force during the glue spraying process, thereby ensuring uniform glue spraying of the sponge, providing a basic guarantee for the subsequent adhesion of the outer skin surface;

[0077] At the same time, the connecting rod at the top of the suction cup 3 is set as a threaded rod, and the threaded connection structure of the threaded rod and the limit frame 7 can adjust the distance between the suction cup 3 and the sponge, which is convenient for adjustment according to the thickness of the sponge.

[0078] Start the cylinder 9 again, the limit assembly falls, so that the suction cup 3 fits on the top of the sponge. The suction cup 3 absorbs and presses the sponge, which can not only reduce the pressure exerted by the limit assembly on the sponge to cause the sponge to deform, but also reduce the contact area between the limit assembly and the sponge, further preventing the sponge from deforming.

[0079] The glue coating conveyor belt 2 and the first electric slide 10 are started to drive the sponge body and the limit assembly for pressing the sponge body to move synchronously, and at the same time, the glue pump 21 is started, and the glue liquid is sprayed on both sides of the sponge body through the glue pump box 18 and the glue spraying pipe 8 from the glue nozzle 22. The glue is sprayed while conveying, which simplifies the production process.

[0080] The motor 31 is started, and the entire reversing turntable 24 is driven to rotate through the meshing of the large gear 29 and the driving gear 30 to change the conveying direction of the sponge. After the sponge is moved to a vertical position below the traction roller 50 through the reversing turntable 24, the pressing roller 51 is driven by the screw 52 to press down the outer skin surface and fit the sponge. Then, the second electric slide 47 is started to drive the traction roller 50 to move. The traction roller 50 and the bonding conveyor belt 45 move synchronously to drive the outer skin surface to unfold. At the same time, the pressing roller 51 moves down so that the outer skin surface fits on the surface of the sponge and is bonded to the glue on both sides of the sponge.

[0081] At the same time, the reversing turntable 24 rotates, and the second connecting rod 39 rotates to drive the first connecting rod 36 to rotate. One end of the first connecting rod 36 is connected to the linkage rod 34 through the fisheye joint 35, so that the linkage rod 34 is used to pull the baffle 42 to slide in the guide bar 43. The guide bar 43 is fixedly installed on both sides of the inner wall of the bellows 33 to ensure that the baffle 42 slides in the inner top wall of the bellows 33, thereby realizing the opening of the air outlet 26. The baffle 42 is moved to be separated from the air outlet 26 through the linkage assembly, and air can be discharged. After sticking to the outer skin surface, the glue liquid is air-dried to speed up the bonding speed, ensuring that when the sponge is above the bonding conveyor belt 45 and the process of sticking to the outer skin surface is, the wind flow is maximum, thereby accelerating the glue drying.

[0082] The above process can complete the gluing operation of the sponge body and the outer leather surface of the soft furniture.

[0083] It should be noted that the rubber-coated conveyor belt 2 is connected by a first active conveying shaft 5 and a first passive conveying shaft 6; the bonding conveyor belt 45 is connected by a second active conveying shaft 27 and a second passive conveying shaft 28. In order to ensure the supporting capacity of the rubber-coated conveyor belt 2 and the bonding conveyor belt 45, there are attached rollers 46 in an equidistant array between the rubber-coated conveyor belt 2 and the bonding conveyor belt 45. The structure and principle of this part are well known to those skilled in the art.

[0084] It should be noted that the conveying principles of the gluing conveying frame 1 and the bonding conveying frame 19, the glue pump 21 and the external fan are all devices or equipment existing in the prior art, or are devices or equipment that can be realized in the prior art, and their power supply, specific composition and principles are clear to those skilled in the art, so they will not be described in detail.

[0085] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A soft furniture processing production line, comprising a gluing conveying frame (1) and a bonding conveying frame (19), wherein the gluing conveying frame (1) is used to perform gluing on a sponge in the furniture, and after the glued sponge is conveyed to the bonding conveying frame (19), the outer skin surface used to wrap the sponge is bonded, the gluing conveying frame (1) is provided with a gluing conveying belt (2), the bonding conveying frame (19) is provided with a bonding conveying belt (45), and a rotating conveying platform is provided between the gluing conveying frame (1) and the gluing conveying belt (2). Features: A glue spraying assembly is arranged in the glue coating conveying frame (1), and the glue spraying assembly comprises two groups of glue spraying tubes (8), the glue outlet ends of the glue spraying tubes (8) are connected to glue nozzles (22), and the lower surface outlets of the glue nozzles (22) are located on the glue coating sides of both sides of the sponge body; A limit assembly, the limit assembly being arranged above the glue coating conveying frame (1) and being used for pressing the formed sponge body so that the sponge body is completely attached to the upper surface of the glue coating conveying belt (2), thereby ensuring that during the glue spraying operation, the glue coating sides on both sides of the sponge body are as close as possible to the glue nozzle (22), thereby ultimately making the glue spraying uniform and preventing the generation of excess glue during bonding, which would lead to glue overflow; A traction assembly, wherein a traction roller (50) for pulling out the outer skin surface and a pressing roller (51) for laminating the outer skin surface on the surface of the sponge are arranged above the bonding conveying frame (19); after spraying the glue, the pressing roller (51) is pressed down to laminarly attach the outer skin surface to the surface of the sponge; the traction roller (50) is started to drive the outer skin surface to move until the bonding of the outer skin surface is completed.

2. The soft furniture processing production line according to claim 1, characterized in that: The glue spraying assembly comprises a glue box (4), the glue box (4) is fixedly connected to the glue coating and conveying frame (1), a glue pump box (18) is symmetrically arranged above the glue box (4), a glue pump (21) is connected between two groups of the glue pump boxes (18), the glue spraying pipe (8) is connected and arranged at the top of the glue pump box (18), the glue nozzle (22) is connected to the glue spraying pipe (8) through a plurality of groups of branch pipes, and a visual window (20) is arranged on one side of the glue box (4).

3. The soft furniture processing production line according to claim 1, characterized in that: The limiting assembly comprises two groups of limiting frames (7), and an adjusting rod is arranged on one side between the two groups of limiting frames (7). The adjusting rod comprises an internal threaded tube (14) and a threaded rod (15). One end of the internal threaded tube (14) is rotatably connected to the inner side of the limiting frame (7), and one end of the threaded rod (15) is fixedly connected to the inner side of the other group of limiting frames (7). The other end of the threaded rod (15) is threadedly connected to the inner side of the other group of limiting frames (7). The limiting assembly can adjust the distance between the two groups of limiting frames (7) according to the size of the sponge, so as to compress the sponge to the maximum extent.

4. The soft furniture processing production line according to claim 3, characterized in that: A telescopic connection piece is also provided between the two groups of the limiting frames (7), and the telescopic connection piece comprises a square steel (16) and a square tube (17). The square steel (16) is slidably connected inside the square tube (17), and the ends of the square steel (16) and the square tube (17) are respectively connected to the inner sides of the two groups of limiting frames (7).

5. The soft furniture processing production line according to claim 4, characterized in that: A connecting plate (13) is fixedly connected to one side of the square tube (17), a cylinder (9) is connected to the bottom surface of the connecting plate (13), a first electric slide (10) is symmetrically arranged on the upper surface of the glue coating conveying frame (1), and a base end of the cylinder (9) is fixedly mounted on a slider of the first electric slide (10).

6. The soft furniture processing production line according to claim 5, characterized in that: The limiting assembly comprises a suction cup (3), the surface of the connecting rod of the suction cup (3) is provided with a thread, the suction cup (3) is connected to the limiting frame (7) by means of an adjustable thread on the threaded portion, so as to facilitate adjustment according to the thickness of the sponge body, and the suction cup (3) is fixedly connected to an external air pump.

7. The soft furniture processing production line according to claim 1, characterized in that: Two groups of second electric slides (47) are symmetrically arranged above the bonding and conveying frame (19), and a vertical plate (49) is fixedly installed on the slider of the second electric slide (47). The traction roller (50) is rotatably installed between the two groups of vertical plates (49). A gantry (53) is fixedly installed at one end of the bonding and conveying frame (19), and a winding roller (48) is rotatably installed inside the gantry (53). The surface of the winding roller (48) is rolled up with an outer skin surface for wrapping the sponge body, and one end of the outer skin surface to be bonded is fixed to the outer surface of the traction roller (50).

8. The soft furniture processing production line according to claim 7, characterized in that: The laminating roller (51) is arranged between the winding roller (48) and the traction roller (50), and a lifting drive assembly is arranged between the two ends of the laminating roller (51) and the bonding conveying frame (19), and the lifting drive assembly comprises a bracket (54), a lifting motor (56) is fixedly installed in the bracket (54), and the output shaft end of the lifting motor (56) is connected to a screw rod (52), and the two ends of the laminating roller (51) are connected to shaft end connecting seats (55), and the screw rod (52) is rotatably connected to the shaft end connecting seat (55) through an internal threaded sleeve.

9. The soft furniture processing production line according to claim 8, characterized in that: The rotary conveying platform comprises a reversing bracket (23) and a reversing turntable (24) rotatably connected to the top of the reversing bracket (23); a positioning shaft (44) is fixedly connected to the center of the bottom surface of the reversing turntable (24); the positioning shaft (44) is rotatably connected to the center of the reversing bracket (23); a motor (31) is installed at the bottom of the reversing bracket (23) through a motor bracket (32); a driving gear (30) is fixedly installed at the output shaft end of the motor (31); a large gear (29) is fixedly installed on the surface of the positioning shaft (44); the large gear (29) is meshed with the driving gear (30).

10. The soft furniture processing production line according to claim 8, characterized in that: A plurality of groups of bellows (33) are arranged in an equidistant array in the bonding conveying frame (19), an air outlet (26) is provided on the top of the bellows (33), a baffle (42) is slidably mounted on the bottom of the air outlet (26), a linkage assembly is arranged between the baffle (42) and the large gear (29), the linkage assembly comprises a second connecting rod (39) and a first connecting rod (36), the first connecting rod (36) is pin-connected to the second connecting rod (39) through a first movable pin shaft (38), the baffle (42) is connected in series through a linkage rod (34), one end of the linkage rod (34) is fixedly connected to a fish gear The eye joint (35) is pin-connected with the first connecting rod (36) and the fisheye joint (35). The upper surface of the large gear (29) is rotatably connected with a fixed pin shaft (37) through a bearing. One end of the second connecting rod (39) is fixed to the surface of the fixed pin shaft (37). The large gear (29) is driven to drive the reversing turntable (24) to rotate. When the reversing turntable (24) rotates to be consistent with the conveying direction of the bonding conveying frame (19), the baffle (42) is moved to be separated from the air outlet (26) through the linkage component, so that air can be discharged. After the outer skin surface is bonded, the glue is air-dried to accelerate the bonding speed.

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