Heat treatment system for mattress sponge production
By designing a heat treatment system for mattress foam production, and utilizing the air needle components of the placement unit and internal heating unit for uniform heating, the problem of warping and collapse caused by temperature differences between the upper and lower layers of the foam was solved, thereby improving the processing precision of the foam and the quality of the finished product.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-22
- Publication Date
- 2026-03-13
AI Technical Summary
During the heat treatment process, the large temperature difference between the upper and lower layers of the oven causes the molecular chains of the upper layer of the sponge to cross-link much faster than those of the lower layer, resulting in inconsistent shrinkage between the upper and lower layers, leading to defects such as warping and collapse.
A heat treatment system for mattress foam production is designed. By setting up a placement unit and an internal heating unit, a heating component and an internal circulation machine are used to uniformly heat the foam. Combined with the air needle component of the internal heating unit, the foam is subjected to directional heat treatment to ensure the temperature consistency between the upper and lower layers.
It effectively avoids the problem of inconsistent shrinkage between the upper and lower layers of the sponge, improves the uniformity of the sponge's resilience and compression set, prevents warping and collapse, and improves processing accuracy and finished product quality.
Smart Images
Figure CN121650282A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of heat treatment technology, and in particular to a heat treatment system for mattress foam production. Background Technology
[0002] During the foaming process of polyurethane foam, incomplete cross-linking of molecular chains often results in residual internal stress, leading to shrinkage and deformation after foaming. This severely impacts subsequent processing and the quality of the finished product. Heat treatment, as a core post-processing step, promotes further cross-linking and curing of molecular chains, effectively eliminating internal stress, ensuring the dimensional accuracy of the foam's length, width, and thickness, avoiding dimensional deviations during cutting and lamination, and preventing mattress collapse and deformation during use. However, current heat treatment still faces a key bottleneck: when the temperature difference between the upper and lower layers in the oven is too large, the cross-linking rate of the upper layer of the foam is much faster than that of the lower layer, causing inconsistent shrinkage and ultimately resulting in defects such as warping and collapse. Summary of the Invention
[0003] The purpose of this invention is to solve the problem that when the temperature difference between the upper and lower layers of the sponge is too large, the cross-linking speed of the molecular chains in the upper layer of the sponge is much faster than that in the lower layer, causing inconsistent shrinkage between the upper and lower layers, and to provide a heat treatment system for mattress sponge production.
[0004] The technical solution adopted by this invention to solve its technical problem is: a heat treatment system for mattress foam production, comprising: a base, an operating table fixedly connected to the outer surface of the base, a processing and heat preservation box fixedly connected to the top of the base, a heating component and an internal circulation machine fixedly connected to the top of the processing and heat preservation box, and a drive component for controlling the reciprocating movement of the moving platform on the base, and further comprising: A placement unit located at the top of the moving platform for clamping mattress foam and changing the shape of the mattress after heat treatment; An internal heating unit is installed inside the processing and insulation box to specifically heat the inner layer of the mattress foam; The placement unit includes a sealing cover, with heat insulation cotton fixedly connected to the outer surface of the sealing cover. A second motor is fixedly connected to the side of the sealing cover away from the heat insulation cotton. A bearing main board is fixedly connected to the output end of the second motor. An electromagnet is fixedly connected to the inner wall of the bearing main board. A holding plate assembly is symmetrically arranged on the side of the bearing main board away from the output end of the second motor. A first support plate is fixedly connected to the upper and lower ends of the bearing main board. A first telescopic rod is fixedly connected to the outer surface of the first support plate. A pressing plate is fixedly connected to the output end of the first telescopic rod. The heating assembly includes an electric heating element and a centrifugal fan.
[0005] Furthermore, the bottom of the sealing cover is fixedly connected to the top of the mobile platform; A sponge to be processed is placed between the two holding plate assemblies, and the sponge to be processed is cut to have a clamping area before heat treatment; After the sponge to be processed is placed, the positions of the clamping area and the clamping plate correspond to each other.
[0006] Furthermore, a side groove is provided on the side of the processing insulation box near the sealing cover; When the sealing cover is attached to the heat preservation box, the heat insulation cotton is embedded in the side groove.
[0007] Furthermore, the holding plate assembly includes a placement plate, the outer surface of which is uniformly provided with ventilation holes, the inner wall of which is fixedly connected with a first support column, and the placement plate having symmetrically provided limit holes on the side near the main support plate. The outer surface of the first support column is slidably connected with a sliding block, the outer surface of which is rotatably connected with a first rotating shaft, and the outer surface of the first rotating shaft is fixedly connected with a pressing rubber roller. When the sponge to be processed does not curl up, the pressing rubber roller has no pressure contact with the sponge to be processed. The inner wall of the sliding block is fixedly connected with a second support column, the outer surface of which is slidably connected with a locking block, the inner wall of which is fixedly connected with a magnetic block, and the outer surface of which is fixedly connected with a telescopic spring.
[0008] Furthermore, the outer surface of the placement plate is fixedly connected to the outer surface of the main support plate, and the side of the telescopic spring away from the locking block is fixedly connected to the inner wall of the sliding block. When the sliding block moves to both sides of the placement plate, the limiting hole corresponds to the limiting block.
[0009] Furthermore, the internal heating unit includes an outer frame plate, a second telescopic rod is fixedly connected to the bottom of the outer frame plate, a support frame is fixedly connected to the output end of the second telescopic rod, a second support plate is fixedly connected to the top of the support frame, an air extractor is fixedly connected to one side of the second support plate, an air outlet plate is evenly arranged on the outer surface of the air extractor, an air needle assembly is evenly arranged on the top of the air outlet plate, and an auxiliary component is also arranged on the outer surface of the second support plate.
[0010] Furthermore, the outer surface of the outer frame plate is fixedly connected to the outer surface of the heat treatment box, and the air extractor draws hot air from the heat treatment box and transmits it to the air inlet needle assembly through the air outlet pipe.
[0011] Furthermore, the air needle assembly includes an air needle base, a rotating support plate is rotatably connected to the top of the air needle base, a needle tube wall is fixedly connected to the top of the rotating support plate, a tip is provided at the top of the needle tube wall, air outlet holes are uniformly provided on the outer surface of the needle tube wall, an inner rotating column is fixedly connected to the inner wall of the needle tube wall, and a spiral force-bearing fan is fixedly connected to the bottom of the inner rotating column. The bottom of the air needle base is fixedly connected to the top of the air outlet plate, and the inner rotating column is located inside the air needle base.
[0012] Furthermore, the auxiliary component includes a third motor, the output end of which is fixedly connected to a first gear; A second rotating shaft, one end of which is fixedly connected to a second gear, and the end of which is away from the second gear is fixedly connected to a first transmission disc. A transmission track is meshed with the outer surfaces of the first gear and the second gear. The second transmission disc has a third support plate fixedly connected to its outer surface, and a cutter is fixedly connected to the outer surface of the third support plate. The outer surfaces of the first and second transmission discs are fitted with transmission belts.
[0013] Furthermore, the outer surface of the third motor is fixedly connected to the outer surface of the second support plate, the outer surface of the second rotating shaft is rotatably connected to the inner wall of the second support plate, and the outer surface of the second transmission disk is rotatably connected to the outer surface of the second support plate. When the cutter stands upright due to the rotation of the second drive disc, it comes into contact with the outer surface of the needle tube wall.
[0014] The beneficial effects of the heat treatment system for mattress foam production provided by this invention are as follows: (1) The present invention places the mattress sponge to be heat-treated on the placement unit and changes the position and shape of the mattress sponge by means of a second motor. Only a heating component is set on the top of the heat treatment box so that the hot air generated by the heating component can fully contact the upper and lower layers of the mattress sponge. This avoids the situation where the cross-linking speed of the upper layer of the sponge molecular chain is faster than that of the lower layer, which would lead to inconsistent shrinkage between the upper and lower layers and cause warping and collapse. (2) The present invention sets up a holding plate assembly, so that the mattress sponge is placed between two placing plates, and the pressing plate is driven by the first telescopic rod to clamp the sponge to be processed, ensuring that the sponge to be processed does not fall off the placing plate during rotation. At the same time, as the overall bearing main board rotates, the sliding block will move along the first support column, thereby driving the pressing rubber roller to move along the heated surface of the sponge to be processed, rolling and pressing the part that is about to lift up after uneven heating. When the internal heating unit is working, the sliding block will move the edge of the placing plate, and the electromagnet will generate magnetic force and attract the magnetic block, so that the locking block enters the limiting hole, thereby fixing the sliding block. (3) By setting up an internal heating unit, when the second motor controls the placement plate to be in a horizontal state, the second telescopic rod will extend and drive the second support plate to approach the placement plate. The air needle assembly will pass through the ventilation hole and perform heat treatment on the inside of the sponge to be processed. Hot air is directionally delivered to the core through the air needle assembly. Along with the heat treatment of the external sponge by the external hot air flow, the cross-linking temperature and time of the sponge surface and core are kept consistent, solving the problem of "excessive cross-linking of the surface and insufficient cross-linking of the core" in the traditional process, and improving the uniformity of sponge resilience and compression set.
[0015] (4) The present invention uses an auxiliary component to remove the sponge debris wrapped around the outer surface of the air needle assembly after the air needle assembly has finished working, so as to prevent the debris from getting tangled with the air needle assembly, causing the air needle assembly to become blocked and unable to work properly. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a structural cross-sectional view of the present invention; Figure 3 This is a schematic diagram of the structure of the base of the present invention; Figure 4 This is a schematic diagram of the heating component of the present invention; Figure 5 This is a schematic diagram of the placement unit of the present invention; Figure 6 This is a schematic diagram of the structure of the placement unit that carries the motherboard in this invention; Figure 7 This is a schematic diagram of the structure of the holding plate assembly of the present invention; Figure 8 This is a structural cross-sectional view of the holding plate assembly of the present invention; Figure 9 This is a schematic diagram of one side of the internal heating unit of the present invention; Figure 10 This is a schematic diagram of the structure of the other side of the internal heating unit of the present invention; Figure 11 This is a schematic diagram of the structure of the air needle assembly of the present invention; Figure 12 This is a structural cross-sectional view of the air needle assembly of the present invention; Figure 13 This is a schematic diagram of the structure of the auxiliary component of the present invention; Figure 14 This is a partial structural schematic diagram of the auxiliary component of the present invention.
[0017] In the diagram: 1. Base; 2. Operating table; 3. Processing and insulation box; 4. First motor; 5. Reciprocating lead screw; 6. Placement unit; 7. Internal heating unit; 8. Heating assembly; 9. Guide rod; 10. Side groove; 11. Internal circulation machine; 12. Moving platform; 81. Electric heating tube; 82. Centrifugal fan; 61. Sealing cover; 62. Insulation cotton; 63. Second motor; 64. Supporting main board; 65. Electromagnet; 66. Holding plate assembly; 67. First support plate; 68. First telescopic rod; 69. Pressing plate; 610. Sponge to be processed; 611. Clamping area; 661. Placement plate; 662. Vent hole; 663. First support column; 664. Limiting hole; 665. Sliding block; 666. First rotating shaft; 667. Pressing rubber. 668. Rod; 669. Second support column; 6610. Telescopic spring; 6611. Locking block; 6612. Magnetic block; 71. Outer frame plate; 72. Second telescopic rod; 73. Support frame; 74. Second support plate; 75. Air extractor; 76. Air outlet plate; 77. Air needle assembly; 78. Auxiliary assembly; 771. Air needle base; 772. Rotating support plate; 773. Needle tube wall; 774. Air outlet; 775. Tip; 776. Inner rotating column; 777. Spiral force-bearing fan; 781. Third motor; 782. First gear; 783. Second rotating shaft; 784. Second gear; 785. Transmission track; 786. First transmission disc; 787. Second transmission disc; 788. Transmission belt; 79. Third support plate; 7810. Cutting knife. Detailed Implementation
[0018] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the further embodiments described herein are merely illustrative and not intended to limit the invention.
[0019] During the foaming and molding process of polyurethane foam, the molecular chain cross-linking reaction is incomplete, leaving a large amount of internal stress. Furthermore, shrinkage and deformation are common after foaming. Heat treatment can promote further cross-linking and solidification of the molecular chains, eliminating internal stress and stabilizing the dimensional accuracy of the foam's length, width, and thickness. This prevents dimensional deviations in subsequent cutting and lamination processes and also prevents the finished mattress from collapsing and deforming during use. However, during heat treatment, excessive temperature differences between the upper and lower layers of the oven can cause the upper layer of the foam to cross-link faster than the lower layer, resulting in inconsistent shrinkage and causing warping and collapse. While using multiple, multi-angle heat sources can reduce the temperature difference between the upper and lower layers to some extent and alleviate warping and collapse by increasing heat source coverage and reducing temperature blind spots, it has significant drawbacks in energy consumption and overall equipment cost, hindering cost control for large-scale continuous production. Therefore, a heat treatment system for mattress foam production was designed, such as... Figures 1-3As shown, it includes: a base 1, an operating table 2 fixedly connected to the outer surface of the base 1, a processing and insulation box 3 fixedly connected to the top of the base 1, a heating component 8 and an internal circulation machine 11 fixedly connected to the top of the processing and insulation box 3, a driving component for controlling the reciprocating movement of the moving platform on the base 1, the driving component including a first motor 4 set on the outer surface of the base 1, a reciprocating lead screw 5 fixedly connected to the output end of the first motor 4, a moving platform 12 threadedly connected to the outer surface of the reciprocating lead screw 5, a guide rod 9 fixedly connected to the top of the base 1, and also includes: Placement unit 6 is set on top of the moving platform 12 and is used to clamp the mattress foam and change the shape of the mattress heat treatment; An internal heating unit 7 is installed inside the heat treatment box 3 and is used to specifically heat the inner layer of the mattress foam. When the present invention is in operation, the sponge 610 to be processed is first placed in the placement unit 6. Then, the first motor 4 drives the reciprocating screw 5 to move, thereby moving the moving platform 12 and the overall placement unit 6 into the processing heat preservation box 3. The heating component 8 heats the air inside the box, thereby heat treating the sponge. At the same time, the internal heating unit 7 performs synchronous heat treatment on the inside of the sponge.
[0020] like Figures 5-6 As shown, the placement unit 6 includes a sealing cover 61, with a heat insulation cotton 62 fixedly connected to the outer surface of the sealing cover 61. A second motor 63 is fixedly connected to the side of the sealing cover 61 away from the heat insulation cotton 62. A bearing main board 64 is fixedly connected to the output end of the second motor 63. An electromagnet 65 is fixedly connected to the inner wall of the bearing main board 64. A holding plate assembly 66 is symmetrically arranged on the side of the bearing main board 64 away from the output end of the second motor 63. A first support plate 67 is fixedly connected to the upper and lower ends of the bearing main board 64. A first telescopic rod 68 is fixedly connected to the outer surface of the first support plate 67. A pressing plate 69 is fixedly connected to the output end of the first telescopic rod 68. When placing the sponge, the sponge to be processed 610 needs to be placed between the two holding plate assemblies 66. Then, the first telescopic rod 68 drives the pressing plate 69 to clamp the sponge to be processed 610. During the subsequent heat treatment process, the second motor 63 will drive the overall supporting main board 64 to rotate, so that the front and back of the sponge to be processed 610 come into contact with the hot air blown downward by the centrifugal fan 82. This avoids the upper molecular chain cross-linking speed of the sponge being faster than that of the lower layer, which would cause inconsistent shrinkage between the upper and lower layers, resulting in warping and collapse.
[0021] The heating assembly 8 includes an electric heating element 81 and a centrifugal fan 82.
[0022] The bottom of the sealing cover 61 is fixedly connected to the top of the moving platform 12; A sponge 610 to be processed is placed between two holding plate assemblies 66. The sponge 610 to be processed is cut to have a clamping area 611 before heat treatment. After the sponge 610 to be processed is placed, the position of the clamping area corresponds to the position of the clamping plate.
[0023] A side groove 10 is provided on the side of the heat preservation box 3 near the sealing cover 61; When the sealing cover 61 is attached to the heat preservation box 3, the heat insulation cotton 62 is embedded in the side groove 10.
[0024] like Figures 7-8 As shown, the holding plate assembly 66 includes a placement plate 661. Ventilation holes 662 are evenly distributed on the outer surface of the placement plate 661. A first support column 663 is fixedly connected to the inner wall of the placement plate 661. Limiting holes 664 are symmetrically arranged on the side of the placement plate 661 near the supporting main plate 64. A sliding block 665 is slidably connected to the outer surface of the first support column 663. A first rotating shaft 666 is rotatably connected to the outer surface of the sliding block 665. A pressing rubber roller 667 is fixedly connected to the outer surface of the first rotating shaft 666. When the sponge 610 to be processed does not curl up, the pressing rubber roller 667 has no pressure contact with the sponge 610 to be processed. A second support column 668 is fixedly connected to the inner wall of the sliding block 665. A locking block 6610 is slidably connected to the outer surface of the second support column 668. A magnetic block 6611 is fixedly connected to the inner wall of the locking block 6610. A telescopic spring 669 is fixedly connected to the outer surface of the locking block 6610.
[0025] While the mainboard 64 rotates, the sliding block 665 moves along the first support column 663 due to gravity, which in turn drives the pressing rubber roller 667 to move along the heated surface of the sponge 610 to be processed. This roller presses down on the parts that are about to warp due to uneven heating, further ensuring the flatness of the sponge surface during heat treatment.
[0026] When the internal heating unit 7 is working, the sliding block 665 will move the edge of the placement plate 661, and the electromagnet 65 will generate a magnetic force and attract the magnetic block 6611, thereby causing the locking block 6610 to enter the limiting hole 664, thus fixing the sliding block 665.
[0027] The outer surface of the placement plate 661 is fixedly connected to the outer surface of the bearing main plate 64, and the side of the telescopic spring 669 away from the locking block 6610 is fixedly connected to the inner wall of the sliding block 665. When the sliding block 665 moves to both sides of the placement plate 661, the limiting hole 664 corresponds to the limiting block.
[0028] Although the problem of the outer layer of the 610 sponge not curling up was solved, in the traditional process, hot air is blown directly onto the surface of the sponge, causing the surface moisture and volatiles to be discharged quickly and instantly, while the moisture in the core needs to migrate slowly to the surface, forming a humidity difference of "dry outside and wet inside". This causes internal stress of surface shrinkage and core expansion, which eventually produces wrinkles.
[0029] like Figures 9-10 As shown, the internal heating unit 7 includes an outer frame plate 71. A second telescopic rod 72 is fixedly connected to the bottom of the outer frame plate 71. A support frame 73 is fixedly connected to the output end of the second telescopic rod 72. A second support plate 74 is fixedly connected to the top of the support frame 73. An air extractor 75 is fixedly connected to one side of the second support plate 74. An air outlet plate 76 is evenly arranged on the outer surface of the air extractor 75. An air needle assembly 77 is evenly arranged on the top of the air outlet plate 76. An auxiliary assembly 78 is also arranged on the outer surface of the second support plate 74.
[0030] Therefore, when the main board 64 is rotated to a horizontal position, the second telescopic rod 72 will extend and drive the second support plate 74 to approach the placement plate 661. The air needle assembly 77 will pass through the vent 662 and perform heat treatment on the interior of the sponge 610 to be processed. Hot air is directionally delivered to the core through the air needle assembly 77. Accompanied by the heat treatment of the external sponge by the external hot air flow, the cross-linking temperature and time of the sponge surface and core are kept consistent, solving the problem of "excessive cross-linking of the surface and insufficient cross-linking of the core" in the traditional process.
[0031] The outer surface of the outer frame plate 71 is fixedly connected to the outer surface of the heat treatment box 3. The air extractor 75 extracts the hot air inside the heat treatment box 3 and transmits it to the air inlet needle assembly 77 through the air outlet pipe.
[0032] like Figures 11-12 As shown, the air needle assembly 77 includes an air needle base 771, a rotating support plate 772 rotatably connected to the top of the air needle base 771, a needle tube wall 773 fixedly connected to the top of the rotating support plate 772, a tip 775 provided at the top of the needle tube wall 773, air outlet holes 774 uniformly provided on the outer surface of the needle tube wall, an inner rotating column 776 fixedly connected to the inner wall of the needle tube wall 773, and a spiral force-bearing fan 777 fixedly connected to the bottom of the inner rotating column 776. After the tip 775 passes through the outer layer of the sponge 610 to be processed and the entire needle tube wall 773 enters the inner core of the sponge, the air pump 75 will draw air from the processing insulation box 3 and pass it through the air outlet plate 76 to the air needle base 771. The generated wind force will cause the spiral force-bearing fan 777 to be stressed, thereby causing the spiral force-bearing fan 777, the inner rotating column 776 and the entire needle tube wall 773 to rotate. At the same time, the high temperature gas will also flow through the air outlet 774 to the inner core of the sponge 610 to be processed, and evenly disperse in the inner core of the sponge 610 to be processed, completely eliminating the wrinkle stress caused by the humidity difference.
[0033] The bottom of the air needle base 771 is fixedly connected to the top of the air outlet plate 76, and the inner rotating column 776 is located inside the air needle base 771.
[0034] like Figures 13-4 As shown, the auxiliary component 78 includes a third motor 781, and the output end of the third motor 781 is fixedly connected to a first gear 782; A second rotating shaft 783 is fixedly connected to a second gear 784 at one end, and a first transmission disc is fixedly connected to the end of the second rotating shaft 783 away from the second gear 784. A transmission track 785 is meshed with the outer surfaces of the first gear 782 and the second gear 784. The second transmission disc 787 has a third support plate 79 fixedly connected to its outer surface, and a cutter 7810 fixedly connected to the outer surface of the third support plate 79. A transmission belt 788 is sleeved on the outer surface of the first transmission disc 786 and the second transmission disc 787.
[0035] The outer surface of the third motor 781 is fixedly connected to the outer surface of the second support plate 74, the outer surface of the second rotating shaft 783 is rotatably connected to the inner wall of the second support plate 74, and the outer surface of the second transmission disk 787 is rotatably connected to the outer surface of the second support plate 74. When the cutter 7810 stands upright due to the rotation of the second drive disc 787, it comes into contact with the outer surface of the needle tube wall.
[0036] When the second telescopic rod 72 resets, the vacuum pump 75 will continue to work for a period of time. At the same time, the third motor 781 will drive the first gear 782 to rotate. Combined with the transmission of the transmission track 785 and the second gear 784, the second rotating shaft 783 will rotate and eventually drive the second transmission disk 787 to rotate, so that the third support plate 79 changes from a vertical state to a horizontal state. At this time, the cutter 7810 will come into contact with the needle tube wall 773. As the needle tube wall 773 rotates, the cutter 7810 will remove the sponge debris that is attached to or wrapped around the needle tube wall 773, so that the air needle assembly 77 can work normally next time.
[0037] The working process of the heat treatment system for mattress foam production provided by this invention is as follows: First, the sponge 610 to be processed is placed in the placement unit 6. The first motor 4 drives the reciprocating screw 5 to move, thereby moving the moving platform 12 and the overall placement unit 6 into the processing and heat preservation box 3. The heating component 8 heats the air inside the box, thereby heat-treating the sponge. The second motor 63 drives the overall supporting main board 64 to rotate, so that the front and back of the sponge 610 to be processed come into contact with the hot air blown downward by the centrifugal fan 82. While the supporting main board 64 rotates, the sliding block 665 moves along the first support column 663 due to gravity, thereby driving the pressing rubber roller 667 to move along the heated surface of the sponge 610 to roll and press the parts that are about to curl up due to uneven heating. When the supporting main board 64 rotates to a horizontal state, the second telescopic rod 72 extends and drives the second support plate 74 to approach the placement plate 661, so that the tip 775 penetrates the outer layer of the sponge 610 to be processed and the overall needle tube wall 773 enters the sponge. The air pump 75 draws air from the heat treatment box 3 and passes it through the air outlet 76 to the air needle base 771. The resulting airflow forces the spiral force-bearing fan 777, causing the spiral force-bearing fan 777, the inner rotating column 776, and the entire needle tube wall 773 to rotate. Simultaneously, high-temperature gas flows through the air outlet 774 to the inner core of the sponge 610 to be processed, dispersing evenly within the sponge 610. Finally, when the second telescopic rod 72 resets, the air pump 75 continues... After working for a period of time, the third motor 781 will drive the first gear 782 to rotate. Combined with the transmission of the transmission belt 785 and the second gear 784, the second rotating shaft 783 will rotate and eventually drive the second transmission disk 787 to rotate, so that the third support plate 79 changes from a vertical state to a horizontal state. At this time, the cutter 7810 will come into contact with the needle tube wall 773. As the needle tube wall 773 rotates, the cutter 7810 will remove the sponge debris that is attached to or wrapped around the needle tube wall 773.
[0038] In the description of this disclosure, it should be noted that, unless otherwise expressly specified and limited, the term "fixed connection" should be interpreted broadly. For example, it can refer to a bolted connection, a welded connection, or an integral connection; it can refer to a mechanical connection or an electrical connection; it can refer to a direct connection or an indirect connection through an intermediate medium; it can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.
[0039] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A heat treatment system for mattress foam production, comprising: a base, an operating table fixedly connected to the outer surface of the base, a processing and heat preservation box fixedly connected to the top of the base, a heating component and an internal circulation machine fixedly connected to the top of the processing and heat preservation box, and a drive component for controlling the reciprocating movement of the moving platform on the base, characterized in that... Also includes: A placement unit located at the top of the moving platform for clamping mattress foam and changing the shape of the mattress after heat treatment; An internal heating unit is installed inside the heat treatment chamber and is used to specifically heat the inner layer of the mattress foam. The placement unit includes a sealing cover, with insulation cotton fixedly connected to the outer surface of the sealing cover. A second motor is fixedly connected to the side of the sealing cover away from the insulation cotton. A bearing main board is fixedly connected to the output end of the second motor. An electromagnet is fixedly connected to the inner wall of the bearing main board. A holding plate assembly is symmetrically arranged on the side of the bearing main board away from the output end of the second motor. A first support plate is fixedly connected to the upper and lower ends of the bearing main board. A first telescopic rod is fixedly connected to the outer surface of the first support plate. A pressing plate is fixedly connected to the output end of the first telescopic rod.
2. The heat treatment system for mattress foam production according to claim 1, characterized in that: The bottom of the sealing cover is fixedly connected to the top of the mobile platform; A sponge to be processed is placed between the two holding plate assemblies, and the sponge to be processed is cut to have a clamping area before heat treatment; After the sponge to be processed is placed, the positions of the clamping area and the clamping plate correspond to each other.
3. The heat treatment system for mattress foam production according to claim 1, characterized in that: The processing insulated box has a side groove on the side near the sealing cover; When the sealing cover is attached to the heat preservation box, the heat insulation cotton is embedded in the side groove.
4. The heat treatment system for mattress foam production according to claim 1, characterized in that: The holding plate assembly includes a placement plate, on the outer surface of which ventilation holes are evenly distributed. A first support column is fixedly connected to the inner wall of the placement plate. Limiting holes are symmetrically arranged on the side of the placement plate near the main support plate. A sliding block is slidably connected to the outer surface of the first support column. A first rotating shaft is rotatably connected to the outer surface of the sliding block. A pressing rubber roller is fixedly connected to the outer surface of the first rotating shaft. A second support column is fixedly connected to the inner wall of the sliding block. A locking block is slidably connected to the outer surface of the second support column. A magnetic block is fixedly connected to the inner wall of the locking block. A telescopic spring is fixedly connected to the outer surface of the locking block.
5. The heat treatment system for mattress foam production according to claim 4, characterized in that: The outer surface of the placement plate is fixedly connected to the outer surface of the main support plate, and the side of the telescopic spring away from the locking block is fixedly connected to the inner wall of the sliding block. When the sliding block moves to both sides of the placement plate, the limiting hole corresponds to the limiting block.
6. The heat treatment system for mattress foam production according to claim 1, characterized in that: The internal heating unit includes an outer frame plate. A second telescopic rod is fixedly connected to the bottom of the outer frame plate. A support frame is fixedly connected to the output end of the second telescopic rod. A second support plate is fixedly connected to the top of the support frame. An air extractor is fixedly connected to one side of the second support plate. Air outlet plates are evenly arranged on the outer surface of the air extractor. Air needle assemblies are evenly arranged on the top of the air outlet plates. An auxiliary assembly is also provided on the outer surface of the second support plate.
7. A heat treatment system for mattress foam production according to claim 6, characterized in that: The outer surface of the outer frame plate is fixedly connected to the outer surface of the heat treatment box, and the air pump draws hot air from the heat treatment box and transmits it to the air inlet needle assembly through the air outlet pipe.
8. A heat treatment system for mattress foam production according to claim 7, characterized in that: The air needle assembly includes an air needle base, a rotating support plate rotatably connected to the top of the air needle base, a needle tube wall fixedly connected to the top of the rotating support plate, a pointed tip at the top of the needle tube wall, air outlet holes evenly distributed on the outer surface of the needle tube wall, an inner rotating column fixedly connected to the inner wall of the needle tube wall, and a spiral force-bearing fan fixedly connected to the bottom of the inner rotating column. The bottom of the air needle base is fixedly connected to the top of the air outlet plate, and the inner rotating column is located inside the air needle base.
9. A heat treatment system for mattress foam production according to claim 8, characterized in that: The auxiliary component includes a third motor, and the output end of the third shaman motor is fixedly connected to a first gear; A second rotating shaft, one end of which is fixedly connected to a second gear, and the end of which is away from the second gear is fixedly connected to a first transmission disc. A transmission track is meshed with the outer surfaces of the first gear and the second gear. The second transmission disc has a third support plate fixedly connected to its outer surface, and a cutter is fixedly connected to the outer surface of the third support plate. The outer surfaces of the first and second transmission discs are fitted with transmission belts.
10. A heat treatment system for mattress foam production according to claim 9, characterized in that: The outer surface of the third motor is fixedly connected to the outer surface of the second support plate, the outer surface of the second rotating shaft is rotatably connected to the inner wall of the second support plate, and the outer surface of the second transmission disk is rotatably connected to the outer surface of the second support plate. When the cutter stands upright due to the rotation of the second drive disc, it comes into contact with the outer surface of the needle tube wall.