A gluing, cotton pasting and pressure maintaining all-in-one machine for sofa

Abstract

The application discloses a gluing, cotton pasting and pressure maintaining integrated machine for sofas, which comprises a first rack, a second rack and a third rack, the first rack is provided with a conveying belt one, the second rack is provided with a conveying belt two, the third rack is provided with a conveying belt three, a box body is installed on the first rack, one side of the box body is provided with an input port, the other side of the box body is provided with an output port, the conveying belt one is inserted into the input port and comes out of the output port, a crossbeam is fixed in the box body, an electric track one is fixed on the crossbeam, the slide table of the electric track one is fixedly connected with the middle part of a horizontal rod, the horizontal rod is fixedly connected with the middle part of a vertical rod through an adjustable connecting block, a glue spraying head is fixed on the vertical rod, the glue spraying head is arranged towards the conveying belt one, the glue spraying head is connected with external glue supply equipment through a pipeline, a pasting mechanism for sponge pasting is arranged on the second rack, and a pressure maintaining and shaping mechanism for sofa cotton pasting is arranged on the third rack.

Description

Technical Field

[0001] This invention belongs to the field of sofa processing technology and relates to an integrated machine for applying glue, attaching cotton, and pressing pressure for sofas. Background Technology

[0002] Sofas are extremely common upholstered furniture in daily life, indispensable home furnishings for people's daily rest and leisure activities. During the sofa's manufacturing process, to optimize the user experience and improve product quality, a special sponge layer needs to be attached to its inner frame. This enhances seating comfort and provides cushioning protection between the sofa frame and the outer fabric. Currently, the sponge application process is entirely manual. A person manually sprays glue onto the corresponding areas of the sofa frame using a handheld glue gun, then manually attaches pre-cut sponges one by one to the glued areas. This process is not only laborious, but it's also difficult to maintain a uniform glue layer thickness. Furthermore, after attachment, the edges of the sponge are prone to peeling and poor adhesion, directly affecting the final product's appearance and performance. Therefore, designing an integrated glue application, sponge application, and pressure-holding machine for sofas to solve these problems is particularly necessary. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides an integrated machine for applying adhesive, attaching cotton, and maintaining pressure for sofas.

[0004] To achieve the above objectives, the technical solution of the present invention is: an integrated machine for applying glue, attaching cotton, and pressing pressure for sofas, comprising a first frame, a second frame, and a third frame. The first frame has a first conveyor belt, the second frame has a second conveyor belt, and the third frame has a third conveyor belt. The first, second, and third conveyor belts are sequentially connected and each is controlled by an independent drive motor. A housing is mounted on the first frame, with an input port on one side and an output port on the other side. A conveyor belt passes through an input port and exits through an output port. A crossbeam is fixed inside the housing. An electric track is fixed on the crossbeam. The slide of the electric track is fixedly connected to the middle of the horizontal rod. The horizontal rod is fixedly connected to the middle of the vertical rod through an adjustable connecting block. A glue spraying head is fixed on the vertical rod. The glue spraying head is positioned facing the conveyor belt. The glue spraying head is connected to an external glue supply device through a pipe. A bonding mechanism for sponge bonding is provided on the second frame. A pressure holding and shaping mechanism for sofa sponge bonding is provided on the third frame.

[0005] Both the input and output ports are equipped with vertically movable barrier doors.

[0006] The bonding mechanism includes a second support, a feeding shaft, a guide groove, an auxiliary pressure roller, and a cutter. The second support is fixed on a second frame, and a first cylinder is fixed on the second support with its piston rod end pointing vertically downward. The piston rod end of the first cylinder is fixedly connected to a lifting platform. The guide groove is tilted and fixed on the lifting platform. An upper power roller and a lower linkage roller are horizontally rotatably arranged inside the guide groove. The upper power roller is driven by a power motor. A strip-shaped opening for the cutter to pass through is also provided on the upper part of the guide groove. An electric track second is also fixed on the guide groove, and a cutter is fixed on the slide of the electric track second. The two sides of the middle part of the guide groove are rotatably connected to one end of a movable swing arm, and the other end of the movable swing arm is rotatably connected to the auxiliary pressure roller. A return spring is also provided between the middle part of the movable swing arm and the guide groove. A second cylinder is also fixed in the middle of the guide groove, with its piston rod pointing vertically upward. The piston rod end of the second cylinder is fixedly connected to a push head, and the push head can abut against the movable swing arm.

[0007] The outlet of the guide groove also has several arc-shaped limiting guide plates.

[0008] The pressure holding and shaping mechanism includes a second bracket, which is fixed on a third frame. A pressure holding cylinder is fixed on the second bracket, and the piston rod of the pressure holding cylinder is vertically downward. A pressure table is connected to the end of the piston rod of the pressure holding cylinder.

[0009] The pressure table has slots around its perimeter, and protrusions can be detachably installed in the slots.

[0010] The pressure table is also threaded with locking screws around its perimeter.

[0011] The locking screw is a hand-tightening component.

[0012] The second bracket is also fixed with a guide sleeve, and a guide post is slidably connected to the guide sleeve. The guide post is fixedly connected to the pressure table.

[0013] By adopting the above technical solution, the beneficial effects of the present invention are: This invention enables automated sofa frame production via a conveyor structure connected sequentially on a first, second, and third frame. It completes three processes in sequence: automatic glue spraying, automatic sponge bonding, and post-bonding pressure setting. This eliminates the need for full manual operation, requiring only minimal auxiliary work, significantly reducing labor intensity. Simultaneously, the automatic glue spraying operation, controlled by an electric track, ensures uniform glue layer thickness and improves glue application stability. After sponge bonding, a pressure setting mechanism applies uniform and stable pressure to the entire sponge, ensuring complete bonding between the sponge and the glued sofa frame. This effectively prevents edge curling and incomplete bonding, guaranteeing the final sofa's appearance and performance. It also improves the processing efficiency and precision of the sponge bonding process, making it suitable for mass production of sofas. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the planar structure of the present invention; Figure 2 This is a schematic diagram of the three-dimensional structure of the removed portion in this invention. Figure 1 ; Figure 3 This is a schematic diagram of the planar structure of the removed portion in this invention; Figure 4 This is a schematic diagram of the three-dimensional structure of the removed portion in this invention. Figure 2 ; In the diagram, 1. First frame; 2. Second frame; 3. Third frame; 4. Conveyor belt one; 5. Conveyor belt two; 6. Conveyor belt three; 7. Box body; 8. Crossbeam; 9. Blocking gate; 10. Spray nozzle; 11. Support two; 12. Feeding shaft; 13. Cylinder one; 14. Lifting platform; 15. Guide groove; 16. Support two; 17. Pressure holding cylinder; 18. Guide column; 19. Guide sleeve; 20. Pressing table; 20a. Slot; 21. Electric track one; 22. Vertical rod; 23. Horizontal rod; 24. Adjustable connecting block; 25. Movable swing arm; 26. Auxiliary pressure roller; 27. Return spring; 28. Cylinder two; 29. ​​Push head; 30. Lower linkage roller; 31. Upper power roller; 32. Electric track two; 33. Cutter; 34. Locking screw; 35. Protruding strip; 36. Arc-shaped limiting guide plate. Detailed Implementation

[0015] To further explain the technical solution of the present invention, the present invention will be described in detail below through specific embodiments.

[0016] like Figure 1-4As shown, this integrated glue-applying, cotton-attaching, and pressure-holding machine for sofas includes a first frame 1, a second frame 2, and a third frame 3. The first frame 1 has a first conveyor belt 4, the second frame 2 has a second conveyor belt 5, and the third frame 3 has a third conveyor belt 6. The first conveyor belt 4, the second conveyor belt 5, and the third conveyor belt 6 are sequentially connected and each is controlled by an independent drive motor. A housing 7 is mounted on the first frame 1. The housing 7 has an input port on one side and an output port on the other side. The first conveyor belt 4 passes through the input port and exits through the output port. 7 has a fixed crossbeam 8, and an electric track 21 is fixed on the crossbeam 8. The slide of the electric track 21 is fixedly connected to the middle of the horizontal rod 23. The horizontal rod 23 is fixedly connected to the middle of the vertical rod 22 through an adjustable connecting block 24. A glue spraying head 10 is fixed on the vertical rod 22. The glue spraying head 10 is set towards the conveyor belt 4. The glue spraying head 10 is connected to an external glue supply device through a pipe. The external glue supply device is an existing device. The second frame 2 is equipped with a bonding mechanism for sponge bonding. The third frame 3 is equipped with a pressure holding and shaping mechanism for the sofa after the cotton is bonded.

[0017] Both the input and output ports are equipped with vertically movable blocking doors 9, which use existing technology to achieve vertical movement.

[0018] The bonding mechanism includes a second bracket 11, a feeding shaft 12, a guide groove 15, an auxiliary pressure roller 26, and a cutter 33. The second bracket 11 is fixed on the second frame 2, and a cylinder 13 is fixed on the second bracket 11 with the piston rod end of the cylinder 13 pointing vertically downward. The piston rod end of the cylinder 13 is fixedly connected to the lifting platform 14. The guide groove 15 is inclinedly fixed on the lifting platform 14. An upper power roller 31 and a lower linkage roller 30 are horizontally rotatably arranged inside the guide groove 15. The upper power roller 31 is driven by a power motor. The upper part of the guide groove 15 also has an opening for the cutter 33 to pass through. The guide groove 15 has a strip-shaped opening and an electric track 32 fixed on it. A cutter 33 is fixed on the slide of the electric track 32. The two sides of the middle part of the guide groove 15 are rotatably connected to one end of the movable swing arm 25. The other end of the movable swing arm 25 is rotatably connected to the auxiliary pressure roller 26. A return spring 27 is also provided between the middle part of the movable swing arm 25 and the guide groove 15. A cylinder 28 is also fixed in the middle of the guide groove 15. The piston rod of the cylinder 28 is vertically upward. The end of the piston rod of the cylinder 28 is fixedly connected to the push head 29, and the push head 29 can abut against the movable swing arm 25.

[0019] There are also several arc-shaped limiting guide plates 36 at the outlet of the guide groove 15.

[0020] The pressure holding and shaping mechanism includes a second bracket 11, which is fixed on the third frame 3. A pressure holding cylinder 17 is fixed on the second bracket 11, and the piston rod of the pressure holding cylinder 17 is vertically downward. The end of the piston rod of the pressure holding cylinder 17 is connected to a pressure table 20.

[0021] The pressure table 20 has slots 20a around its perimeter, and a protrusion 35 can be detachably installed in the slots 20a. The pressure table 20 is also threaded with locking screws 34 around its perimeter. Specifically, the locking screws 34 are hand-tightened. With this structure, it is easy to replace protrusions 35 of different specifications.

[0022] A guide sleeve 19 is also fixed on the bracket 2 11. A guide post 18 is slidably connected to the guide sleeve 19. The guide post 18 is fixedly connected to the pressure table 20.

[0023] The working principle is as follows: The sofa frame to be processed is placed on conveyor belt 4, which carries the sofa frame into housing 7. The blocking doors 9 at the inlet and outlet close the housing 7 to prevent glue mist from spreading into the workshop environment during the glue spraying process. Then, electric track 21 drives the horizontal bar 23 to move laterally along the crossbeam 8. The pre-adjusted glue spraying head 10 automatically sprays glue onto the corresponding position of the sofa frame according to the preset path. After the operation is completed, the blocking door 9 is raised, and the glued sofa frame is sent to conveyor belt 5 by conveyor belt 4. Rolled sponge raw material is pre-set on the feeding shaft 12, with the sponge end extending between the upper power roller 31 and the lower linkage roller 30 of the guide groove 15. When the sofa frame moves into position, cylinder 13 pushes the inclined guide groove 15 to descend, so that the outlet of the guide groove 15 is aligned with the sofa frame. At the corresponding position, the power motor drives the upper power roller 31 to rotate, continuously feeding the sponge. The arc-shaped limiting guide plate 36 limits the sponge's output direction. Then, the cylinder 28 pushes the push head 29 to push the movable swing arm 25, causing the auxiliary pressure roller 26 to press the sponge tightly onto the surface of the sofa frame. As the sponge is fed out, it is pressed onto the adhesive surface of the sofa frame. After reaching the set length, the electric track 32 drives the cutter 33 to move along the strip opening to cut the sponge, completing the sponge bonding operation. Then, the conveyor belt 25 feeds the sofa frame with the sponge bonded into the conveyor belt 36. When the frame moves into place, the pressure holding cylinder 17 pushes the pressure table 20 down. The pressure table 20 applies uniform pressure to the entire sponge surface. After the pressure holding time is set, the pressure table 20 is lifted, completing the pressure holding and shaping operation. The conveyor belt 36 then sends out the processed workpiece. For sofa frames of different sizes, the initial position of the spray nozzle 10 can be adjusted by adjusting the position of the adjustable connecting block 24 on the horizontal bar 23. A protruding strip 35 can also be installed in the slot 20a of the pressure table 20. After being fixed by the locking screw 34, the edge can be better localized and limited to prevent the sponge edge from lifting and improve the pressure holding and shaping effect.

[0024] All of the above components are general standard parts or components known to those skilled in the art. Their structure and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0025] The above embodiments and figures are not intended to limit the product form and style of the present invention. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of the present invention.

Claims

1. A glue-applying, cotton-attaching, and pressure-holding integrated machine for sofas, comprising a first frame (1), a second frame (2), and a third frame (3), characterized in that, The first frame (1) has a first conveyor belt (4), the second frame (2) has a second conveyor belt (5), and the third frame (3) has a third conveyor belt (6). The first conveyor belt (4), the second conveyor belt (5), and the third conveyor belt (6) are connected in sequence and are controlled by independent drive motors. A housing (7) is installed on the first frame (1). The housing (7) has an input port on one side and an output port on the other side. The first conveyor belt (4) passes through the input port and exits through the output port. A crossbeam (8) is fixed inside the housing (7). An electric track (21) is fixed on the crossbeam (8). The slide of the electric track (21) is fixedly connected to the middle of the horizontal rod (23). The horizontal rod (23) is fixedly connected to the middle of the vertical rod (22) through an adjustable connecting block (24). A glue spraying head (10) is fixed on the vertical rod (22). The glue spraying head (10) is set towards the conveyor belt (4). The glue spraying head (10) is connected to an external glue supply device through a pipe. A bonding mechanism for sponge bonding is provided on the second frame (2). A pressure holding and shaping mechanism for sponge bonding is provided on the third frame (3).

2. The integrated machine for applying glue, attaching cotton, and maintaining pressure for sofas according to claim 1, characterized in that, Both the input and output ports are equipped with vertically movable blocking doors (9).

3. The integrated machine for applying adhesive, attaching cotton, and maintaining pressure for sofas according to claim 1, characterized in that, The bonding mechanism includes a second bracket (11), a feeding shaft (12), a guide groove (15), an auxiliary pressure roller (26), and a cutter (33). The second bracket (11) is fixed on the second frame (2). A cylinder (13) is fixed on the second bracket (11), and the piston rod end of the cylinder (13) is vertically downward. The piston rod end of the cylinder (13) is fixedly connected to the lifting platform (14). The guide groove (15) is inclined and fixed on the lifting platform (14). An upper power roller (31) and a lower linkage roller (30) are horizontally rotatably arranged in the guide groove (15). The upper power roller (31) is driven by a power motor. The upper part of the guide groove (15) is also provided for the cutter (33) to pass through. The guide groove (15) has a strip-shaped opening, and an electric track (32) is fixed on the guide groove (15). A cutter (33) is fixed on the slide of the electric track (32). The two sides of the middle part of the guide groove (15) are rotatably connected to one end of the movable swing arm (25). The other end of the movable swing arm (25) is rotatably connected to the auxiliary pressure roller (26). A reset spring (27) is also provided between the middle part of the movable swing arm (25) and the guide groove (15). A cylinder (28) is fixed in the middle part of the guide groove (15). The piston rod of the cylinder (28) is vertically upward. The end of the piston rod of the cylinder (28) is fixedly connected to the push head (29), and the push head (29) can abut against the movable swing arm (25).

4. The integrated machine for applying glue, attaching cotton, and maintaining pressure for sofas according to claim 3, characterized in that, The guide groove (15) also has several arc-shaped limiting guide plates (36) at its outlet.

5. The integrated machine for applying adhesive, attaching cotton, and maintaining pressure for sofas according to claim 1, characterized in that, The pressure holding and shaping mechanism includes a second bracket (11), which is fixed on a third frame (3). A pressure holding cylinder (17) is fixed on the second bracket (11), and the piston rod of the pressure holding cylinder (17) is vertically downward. The end of the piston rod of the pressure holding cylinder (17) is connected to a pressure table (20).

6. The integrated machine for applying adhesive, attaching cotton, and maintaining pressure for sofas according to claim 5, characterized in that, The pressure table (20) has slots (20a) around its perimeter, and a protrusion (35) can be detachably installed in the slot (20a).

7. The integrated machine for applying glue, attaching cotton, and maintaining pressure for sofas according to claim 3, characterized in that, The pressure table (20) is also threaded with locking screws (34) around its perimeter.

8. The integrated machine for applying adhesive, attaching cotton, and maintaining pressure for sofas according to claim 7, characterized in that, The locking screw (34) is a hand-tightening component.

9. A glue-applying, cotton-attaching, and pressure-holding integrated machine for sofas according to claim 7, characterized in that, The bracket (11) is also fixed with a guide sleeve (19), and a guide post (18) is slidably connected to the guide sleeve (19). The guide post (18) and the pressure table (20) are fixedly connected.

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