A safe and environment-friendly sponge product forming device

Abstract

The application belongs to the field of sponge production equipment, and particularly relates to a safe and environment-friendly sponge product forming equipment, which comprises a stirring device, the lower part of the outer surface of the stirring device is movably connected with a forming box, the lower surface of the forming box is uniformly provided with adjusting support legs, the forming box comprises an outer box shell, the inner wall of the outer box shell is slidably connected with an adjusting frame, the shaft center of the upper surface of the adjusting frame is provided with a through hole, and the shaft center of the upper surface of the adjusting frame is rotatably connected with a sealing cover through the through hole. In the process of sponge expansion, the bottom plate covers the upper surface of the sponge block under the action of gravity, so that the outer surface of the produced sponge block is relatively flat as a whole, almost no cutting processing is needed, waste phenomenon caused by direct scrapping of cutting edges and corners is avoided, the expansion speed of the sponge block is limited, sponge block internal structure is prevented from being too loose due to too fast expansion of the sponge block.

Description

Technical Field

[0001] This invention belongs to the field of sponge production equipment, specifically a safe and environmentally friendly sponge product molding equipment. Background Technology

[0002] A sponge is a porous material with excellent water absorption, used for cleaning. Commonly used sponges include those made from wood cellulose fibers or foamed plastic polymers. Sponges made from foamed plastic polymers are widely used in various industries due to their low cost, wide range of applications, and good water absorption, especially in the production of common sponge mops and as a common household cleaning tool. However, the raw materials used in these polymer-based sponge products have a certain degree of environmental pollution and cannot be degraded or recycled. Furthermore, after prolonged use, they are prone to deterioration and hardening, reducing their lifespan.

[0003] Most sponge production uses a one-step box-type foaming method, where various raw materials are rapidly added to a molding box under high-speed stirring. In the molding box, reactions such as chain growth, foaming, cross-linking, and curing are completed, thus finishing the sponge production. The sponge is then cut into the required shape and size. Modern industrial sponges are generally made of polyvinyl alcohol (PVA). PVA is a high-molecular-weight polymer, but it is harmful to the body when inhaled, ingested, or absorbed through the skin, and it irritates the eyes and skin. Although the human body can eliminate toxic substances through metabolism, long-term exposure to these substances can still cause significant harm to the health of production workers. During the molding process, the upper surface of a normal sponge block expands freely without restriction, resulting in an uneven surface that requires further cutting. This increases production steps and costs. The scraps from the cutting process are usually discarded, leading to waste. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a safe and environmentally friendly sponge product molding equipment, which solves the problem that the upper surface of the sponge block needs to be cut after molding, resulting in waste and increased production costs.

[0005] The technical solution adopted by this invention to solve its technical problem is as follows: A safe and environmentally friendly sponge product molding equipment, comprising a stirring device, a molding box movably connected to the lower part of the outer surface of the stirring device, and adjustable support legs evenly arranged on the lower surface of the molding box. When using this device to shape the sponge, the mixed polyvinyl alcohol and other materials are poured into the interior of the molding box through the through-hole on the upper surface of the adjusting frame. Then, the stirring device is inserted into the interior of the molding box through the through-hole for sealed stirring. The stirring device is then pulled out of the molding box, and the through-hole is blocked with a sealing cap. The bottom of the outer shell is heated. During the heating process, the mixed material on the upper surface of the movable base plate begins to expand and gradually forms an expanded sponge solid under the shaping action of the inner wall of the outer shell. Because the gas content on the upper surface of the mixed material is much greater than the gas content at the lower part of the material, the mixed material gradually expands from the lower part of the inner wall of the outer shell, i.e., near the bottom, to the upper part. The shaped sponge will form the same shape as the inner wall of the outer shell, ultimately forming a large sponge block.

[0006] Preferably, the forming box includes an outer shell, and an adjusting frame is slidably connected to the inner wall of the outer shell. A through-hole is opened at the center of the upper surface of the adjusting frame, and a sealing cover is rotatably connected to the center of the upper surface of the adjusting frame through the through-hole. Mounting holes for installing exhaust pipes are symmetrically opened on the left and right sides of the upper surface of the adjusting frame. In the normal process of forming a sponge block, the sides are usually relatively flat and smooth because they are shaped by the plastic action of the outer shell. However, the upper surface of the sponge block is usually uneven because it expands freely without restriction. It needs to be cut, which increases the production process and increases the production cost. The scraps after cutting are usually scrapped directly, resulting in waste. In this device, because the bottom plate cover keeps pressing the upper surface of the sponge block flat under the action of gravity during the expansion process of the sponge, the upper surface of the produced sponge block is relatively flat. It also limits the expansion speed of the sponge block to prevent the sponge block from expanding too fast and causing the internal structure of the sponge block to be too loose.

[0007] Preferably, the adjustment frame includes an adapter top cover, a bottom plate cover is slidably connected to the lower part of the inner wall of the adapter top cover, a composite cylinder is fixedly connected to the axis of the upper surface of the bottom plate cover, external connecting blocks are evenly arranged on the side of the adapter top cover, a side telescopic arm is fixedly connected to the lower surface of the external connecting blocks, a movable bottom plate is movably connected to the lower surface of the side telescopic arm near the sealing cover, and a connecting spring is provided at the bottom of the inner wall of the side telescopic arm. After molding, four tension rods are inserted into the through-hole and connected to the bottom of the inner wall of the side telescopic arm by bolts. Then the tension rods are lifted, and the tension... The rod drives the bottom of the side telescopic arm to lift the movable base plate upward. The movable base plate slides up along the inner wall of the outer shell, thereby lifting the foam block formed on the upper surface of the movable base plate out from the inside of the outer shell. Since the side of the movable base plate is connected to the outer surface of the side telescopic arm by a snap-fit, after the snap-fit ​​is released, the side telescopic arm is separated from the movable base plate, but the formed foam block is still located on the upper surface of the movable base plate. At this time, the processed formed foam blocks are stacked together for cooling. Since each group of foam blocks is separated from each other by the movable base plate, the foam blocks will not stick together during the cooling process.

[0008] Preferably, the number of adjusting support legs is four, the top of the adjusting support legs is fixedly connected to the lower surface of the outer shell, the inner cavity of the outer shell is evenly provided with vertical sliding grooves, and the outer surface of the external connecting block is slidably connected to the inner wall of the outer shell through the vertical sliding grooves. During the process of taking out the sponge block, because the operator does not directly contact the sponge block, the temperature of the sponge block is higher than that of general sponge production equipment, and the safety hazard of the operator being burned is greatly reduced, thereby ensuring the safety of production.

[0009] Preferably, there are four external connecting blocks. The upper surface of the outer casing is evenly provided with through-holes that extend to the bottom of the outer casing. The inner wall of the outer casing is movably connected to a tension rod through the through-holes. The lower part of the outer surface of the tension rod is bolted to the bottom of the inner wall of the side telescopic arm through a threaded groove. The bottom end of the connecting spring is fixedly connected to the bottom of the inner wall of the side telescopic arm.

[0010] Preferably, the stirring device includes a fixed plate, a rotating motor is fixedly connected to the middle of the lower surface of the fixed plate, a tube is fixedly connected to the outer surface of the output shaft of the rotating motor, an adapter is slidably connected to the lower part of the inner wall of the tube, a buffer spring is fixedly connected to the upper part of the inner wall of the tube, vertical rotating rods are evenly arranged on the lower part of the outer surface of the adapter, a planar rotating rod is rotatably connected to the bottom end of the vertical rotating rod through a rotating joint, and a telescopic rod is slidably connected to the inner wall of the planar rotating rod. Before production, the mixing device needs to be stirred, but the stirred material is easy to adhere to the outer surface of the container, resulting in material residue inside the relevant stirring device and waste. Therefore, before using the device for sponge production, stirring is performed directly inside the device. At this time, after the user pours the mixture into the forming box, the height of the support leg is adjusted. Due to the action of gravity, the planar rotating rod and the telescopic rod are in a vertical state, so the lower part of the tube remains vertical, and can be easily inserted into the forming box. After contacting the upper surface of the movable base plate, that is, the stirring device is in a vertical position. Figure 2 As shown in the diagram, the rotating motor is started to rotate. The vertical rotating rod, the flat rotating rod, and the telescopic rod stir the bottom and top layers of the mixture, respectively. Since the telescopic rod can slide along the inner wall of the flat rotating rod, it can automatically extend and retract under the action of centrifugal force, thereby fully sweeping across the upper surface of the movable base plate and stirring the material at the bottom.

[0011] Preferably, there are four vertical rotating rods, each with a hinge joint rotatably connected at its center. The outer surface of the planar rotating rod is movably connected to the upper surface of the movable base plate, and the outer surface of the tube is movably connected to the inner wall of the fitted top cover through a through-hole.

[0012] Preferably, the synthesis cylinder includes a fixed circular shell, a movable bottom block is slidably connected to the lower part of the inner wall of the fixed circular shell, side sliding openings are evenly provided on the inner wall of the fixed circular shell, open passages are evenly provided on the inner wall of the fixed circular shell through the side sliding openings, and a through opening is provided in the middle of the inner cavity of the movable bottom block.

[0013] Preferably, the upper surface of the fixed circular shell is fixedly connected to the axis of the lower surface of the adapted top cover, the lower surface of the movable base block is fixedly connected to the axis of the upper surface of the base plate cover, the number of open passage pipes is twelve, the bottom end of the open passage pipe is fixedly connected to the upper surface of the base plate cover, and the upper part of the fixed circular shell is bent inward at a certain angle.

[0014] Preferably, the open conduit includes a connecting bend, the top end of which is fixedly connected to a slotted conduit, the end of the slotted conduit away from the connecting bend is fixedly connected to a sealing end, and a small spring is sleeved on the outer surface of the slotted conduit away from the connecting bend.

[0015] Preferably, the bottom end of the connecting bend is fixedly connected to the upper surface of the base plate cover; the outer surface of the slotted through-tube is slidably connected to the inner wall of the fixed circular shell through a side sliding port; the outer surface of the sealing end is slidably connected to the inner wall of the fixed circular shell through a side sliding port; one end of the small spring is fixedly connected to the outer surface of the fixed circular shell; and the other end of the small spring is fixedly connected to the inner cavity of the sealing end. The connecting bend is made of flexible rubber. Since the outer shell volume of the device is fixed, the amount of mixed material poured in each time is fixed. During the expansion of the sponge, the gradually expanding sponge will gradually... When the bottom cover is lifted upwards, the upper surface of the bottom cover will push the moving bottom block upwards. The moving bottom block will then be lifted upwards via the connecting bend. Since the upper part of the fixed circular shell is tilted inwards, the connecting bend will push the slotted pipe outwards from the fixed circular shell. At this point, the sealing end will completely slide out of the fixed circular shell. The slotted pipe will connect the inside of the outer shell with the exhaust pipes on both sides via the side slot. At this point, the toxic gases and heat generated inside the outer shell will be directionally discharged to the outside through the exhaust pipes, preventing the spread of waste gas and avoiding accidents where the operator is burned due to excessive heat inside the device when removing the sponge.

[0016] The beneficial effects of this invention are as follows: 1. During the expansion process of the sponge, the bottom plate keeps pressing the upper surface of the sponge block flat under the action of gravity. Therefore, the outer surface of the produced sponge block is relatively flat and almost no cutting is required. This avoids the waste caused by scraps after cutting. It also limits the expansion speed of the sponge block and prevents the sponge block from expanding too fast, which would cause the internal structure of the sponge block to be too loose.

[0017] 2. Stack the processed molded sponge blocks together for cooling. Since each group of sponge blocks is separated from each other by the movable base plate, the sponge blocks will not stick together during the cooling process, thus avoiding the need to cut and process the sponge blocks that are stuck together again.

[0018] 3. The operator lifts the tension bar, which drives the bottom of the side telescopic arm to lift the movable base plate upward. The movable base plate slides up along the inner wall of the outer shell, thereby lifting the sponge block formed on the upper surface of the movable base plate out of the inside of the outer shell, thus solving the problem of the sponge block sticking to the inner wall of the container after forming and being difficult to remove.

[0019] 4. During the expansion of the sponge, the slotted pipe connects the inside of the outer casing with the exhaust pipes on both sides through the side slot. At this time, the toxic gases and heat generated inside the outer casing are discharged to the outside through the exhaust pipes, which avoids the spread of waste gas and also avoids the accident of the operator being burned due to excessive heat inside the device when the operator takes out the sponge. 5. Before production, the mixing device needs to be stirred. However, the stirred material tends to stick to the outer surface of the container, resulting in material residue inside the mixing device and causing waste. Therefore, before using the device for sponge production, the stirring is carried out directly inside the device. The mixing device is not fixedly connected to the forming box, so it will not affect the subsequent material handling.

[0020] 6. During the process of removing the sponge block, because the operator does not come into direct contact with the sponge block, and the temperature of the sponge block is higher compared with general sponge production equipment, the safety hazard of the operator being burned is greatly reduced, thereby ensuring the safety of production. Attached Figure Description

[0021] Figure 1 This is the front view of the present invention; Figure 2 This is a schematic diagram of the stirring device of the present invention in its working state; Figure 3 This is a cross-sectional view of the forming box of the present invention during the shaping process; Figure 4 This is a schematic diagram of the structure of the adjustment frame of the present invention; Figure 5 This is a schematic diagram of the structure of the synthesis cylinder of the present invention; Figure 6 This is a schematic diagram of the open-pipe structure of the present invention.

[0022] In the diagram: 1. Mixing device; 2. Forming box; 6. Adjustable support leg; 11. Fixed plate; 12. Rotating motor; 13. Tube; 14. Buffer spring; 15. Adapter; 16. Vertical rotating rod; 17. Planar rotating rod; 18. Telescopic rod; 21. Outer shell; 22. Exhaust pipe; 23. Sealing cover; 3. Adjusting frame; 31. Adaptive top cover; 32. External connecting block; 33. Side telescopic arm; 34. Movable base plate; 35. Base plate cover; 36. Connecting spring; 37. Tension bar; 4. Composite cylinder; 41. Fixed round shell; 42. Movable base block; 5. Open through pipe; 51. Connecting bend pipe; 52. Slotted through pipe; 53. Small spring; 54. Sealing end. Detailed Implementation

[0023] use Figures 1-6 The following is a description of a safe and environmentally friendly sponge product molding equipment according to one embodiment of the present invention.

[0024] like Figures 1-6As shown, the present invention provides a safe and environmentally friendly sponge product molding equipment, including a stirring device 1. A molding box 2 is movably connected to the lower part of the outer surface of the stirring device 1. Adjustment support legs 6 are evenly arranged on the lower surface of the molding box 2. When using the device to shape the sponge, the mixed polyvinyl alcohol and other materials are poured into the interior of the molding box 2 through the through-hole on the upper surface of the adjustment frame 3. Then, the stirring device 1 is inserted into the interior of the molding box 2 through the through-hole for sealed stirring. Then, the stirring device 1 is pulled out of the molding box 2, and the through-hole is blocked with a sealing cover 23. The bottom of the outer shell 21 is heated. During the heating process, the mixed material on the upper surface of the movable bottom plate 34 begins to expand and gradually forms an expanded sponge solid under the shaping action of the inner wall of the outer shell 21. Since the gas content on the upper surface of the mixed material is much greater than the gas content at the lower part of the material, the mixed material gradually expands from the lower part of the inner wall of the outer shell 21, that is, the position near the bottom of the inner wall, to the upper part. The shaped sponge will be formed in the same shape as the inner wall of the outer shell 21, and finally form a large sponge block.

[0025] The forming box 2 includes an outer shell 21, and an adjusting frame 3 is slidably connected to the inner wall of the outer shell 21. A through-hole is opened at the center of the upper surface of the adjusting frame 3. A sealing cover 23 is rotatably connected to the center of the upper surface of the adjusting frame 3 through the through-hole. Mounting holes for installing exhaust pipes 22 are symmetrically opened on the left and right sides of the upper surface of the adjusting frame 3. Exhaust pipes 22 are symmetrically arranged on the left and right sides of the upper surface of the adjusting frame 3 through the mounting holes. Because the bottom plate cover 35 keeps pressing the upper surface of the sponge block flat under the action of gravity during the expansion of the sponge, the upper surface of the produced sponge block is relatively flat.

[0026] The adjustment frame 3 includes an adapter top cover 31, and a bottom plate cover 35 is slidably connected to the lower part of the inner wall of the adapter top cover 31; preferably, the bottom plate cover 35 is slidably connected to the adapter top cover 31 through a guide post, and can move relative to the adapter top cover 31 in the vertical direction.

[0027] A composite cylinder 4 is fixedly connected to the axis of the upper surface of the base plate cover 35. External connecting blocks 32 are evenly arranged on the side of the top cover 31. A side telescopic arm 33 is fixedly connected to the lower surface of the external connecting block 32. A movable base plate 34 is movably connected to the side of the lower surface of the side telescopic arm 33 near the sealing cover 23. That is, the side of the movable base plate 34 is movably connected to the bottom inner side of the side telescopic arm 33. A connecting spring 36 is provided at the bottom of the inner wall of the side telescopic arm 33. After molding, four tension rods 37 are inserted into the through-hole and connected to the bottom of the inner wall of the side telescopic arm 33 by bolts through the tension rods 37. Then the tension rods are... 37 is lifted, and the tension bar 37 drives the bottom of the side telescopic arm 33 to lift the movable base plate 34 upward. The movable base plate 34 slides up along the inner wall of the outer shell 21, thereby lifting the sponge block formed on the upper surface of the movable base plate 34 out of the interior of the outer shell 21. Since the side of the movable base plate 34 and the outer surface of the side telescopic arm 33 are connected together by a snap-fit, after the snap-fit ​​is released, the side telescopic arm 33 is separated from the movable base plate 34, but the formed sponge block is still located on the upper surface of the movable base plate 34. At this time, the processed formed sponge blocks are stacked together for cooling. Since each group of sponge blocks is separated from each other by the movable base plate 34.

[0028] Preferably, the movable base plate 34 is detachably snapped into the side telescopic arm 33 via a snap-fit ​​structure.

[0029] The number of support legs 6 is adjusted to four. The top of the support legs 6 is fixedly connected to the lower surface of the outer shell 21. Vertical grooves are evenly opened in the inner cavity of the outer shell 21. The outer surface of the external connecting block 32 is slidably connected to the inner wall of the outer shell 21 through the vertical grooves.

[0030] There are four external connecting blocks 32. The upper surface of the outer casing 21 is evenly provided with through-holes that extend to the bottom of the outer casing 21. The inner wall of the outer casing 21 is movably connected to a tension rod 37 through the through-holes. The lower part of the outer surface of the tension rod 37 is bolted to the bottom of the inner wall of the side telescopic arm 33 through a threaded groove. The bottom end of the connecting spring 36 is fixedly connected to the bottom of the inner wall of the side telescopic arm 33.

[0031] Preferably, the connecting spring 36 is sleeved around the tension bar 37, and its bottom end is fixedly connected to the bottom of the inner wall of the side telescopic arm 33.

[0032] The mixing device 1 includes a fixed plate 11. A rotary motor 12 is fixedly connected to the middle of the lower surface of the fixed plate 11. A tube 13 is fixedly connected to the outer surface of the output shaft of the rotary motor 12. An adapter 15 is slidably connected to the lower part of the inner wall of the tube 13. A buffer spring 14 is fixedly connected to the upper part of the inner wall of the tube 13. Vertical rotating rods 16 are evenly arranged on the lower part of the outer surface of the adapter 15. A planar rotating rod 17 is rotatably connected to the bottom end of the vertical rotating rod 16 through a rotating joint. A telescopic rod 18 is slidably connected to the inner wall of the planar rotating rod 17. After the user pours the mixture into the molding box 2, he stretches and adjusts the height of the support leg 6. Due to gravity, the planar rotating rod 17 and the telescopic rod 18 are in a vertical state, so the lower part of the tube 13 remains vertical and can be easily inserted into the molding box 2. After contacting the upper surface of the movable base plate 34, the mixing device 1 is in a position as follows. Figure 2 In the state shown, the rotating motor 12 is started to rotate. The vertical rotating rod 16, the flat rotating rod 17, and the telescopic rod 18 stir the bottom and top layers of the mixture, respectively. Since the telescopic rod 18 can slide along the inner wall of the flat rotating rod 17, the telescopic rod 18 can automatically extend and retract under the action of centrifugal force, thereby fully sweeping across the upper surface of the movable bottom plate 34 and stirring the material at the bottom.

[0033] Preferably, the planar rotating rod 17 and the telescopic rod 18 are immersed in the material, and the telescopic rod 18 can slide along the planar rotating rod 17 under the action of centrifugal force to expand the stirring range.

[0034] There are four vertical rotating rods 16. The middle of each vertical rotating rod 16 is rotatably connected to a hinge joint. The outer surface of the planar rotating rod 17 is movably connected to the upper surface of the movable base plate 34. The outer surface of the tube 13 is movably connected to the inner wall of the fitted top cover 31 through a through-hole.

[0035] The synthesis cylinder 4 includes a fixed circular shell 41, a movable base block 42 slidably connected to the lower part of the inner wall of the fixed circular shell 41, side sliding openings are evenly opened on the inner wall of the fixed circular shell 41, and open passage pipes 5 are evenly arranged on the inner wall of the fixed circular shell 41 through the side sliding openings. A through opening is opened in the middle of the inner cavity of the movable base block 42.

[0036] The upper surface of the fixed circular shell 41 is fixedly connected to the axis of the lower surface of the adaptable top cover 31. The lower surface of the movable base block 42 is fixedly connected to the axis of the upper surface of the base plate cover 35. There are twelve open passage pipes 5. The bottom end of the open passage pipe 5 is fixedly connected to the upper surface of the base plate cover 35. The upper part of the fixed circular shell 41 is bent inward at a certain angle.

[0037] The open pipe 5 includes a connecting bend 51, a slotted pipe 52 is fixedly connected to the top end of the connecting bend 51, a sealing end 54 is fixedly connected to the end of the slotted pipe 52 away from the connecting bend 51, and a small spring 53 is sleeved on the outer surface of the slotted pipe 52 away from the end of the connecting bend 51.

[0038] The bottom end of the connecting bend 51 is fixedly connected to the upper surface of the base plate cover 35. The outer surface of the slotted through pipe 52 is slidably connected to the inner wall of the fixed circular shell 41 through a side sliding port. The outer surface of the sealing end 54 is slidably connected to the inner wall of the fixed circular shell 41 through a side sliding port. One end of the small spring 53 is fixedly connected to the outer surface of the fixed circular shell 41, and the other end of the small spring 53 is fixedly connected to the inner cavity of the sealing end 54. The connecting bend 51 is made of flexible rubber. Since the volume of the outer shell 21 of the device is fixed, the amount of mixed material poured in each time is fixed. During the expansion of the sponge... The gradually expanding sponge will gradually push the bottom cover 35 upward. At this time, the upper surface of the bottom cover 35 will push the moving bottom block 42 upward. The moving bottom block 42 will push upward through the connecting bend 51. Since the upper part of the fixed round shell 41 is inclined inward, the connecting bend 51 will push the slotted pipe 52 to the outside of the fixed round shell 41. At this time, the sealing end 54 will completely slide out of the fixed round shell 41. The slotted pipe 52 will connect the inside of the outer shell 21 with the exhaust pipes 22 on both sides through the side slot. At this time, the toxic gas and heat generated inside the outer shell 21 will be discharged to the outside through the exhaust pipes 22.

[0039] The specific workflow is as follows: When using this device to shape the sponge, the mixed polyvinyl alcohol and other materials are poured into the molding box 2 through the through-hole on the upper surface of the adjustment frame 3. Then, the stirring device 1 is inserted into the molding box 2 through the through-hole for sealed stirring. Then, the stirring device 1 is pulled out of the molding box 2, and the through-hole is blocked with the sealing cover 23. The bottom of the outer shell 21 is then heated.

[0040] During the heating process, the mixed material on the upper surface of the movable base plate 34 begins to expand and gradually forms into an expanded sponge solid under the shaping action of the inner wall of the outer shell 21. Since the gas content on the upper surface of the mixed material is much greater than the gas content at the bottom of the material, the mixed material gradually expands from the bottom to the top of the inner wall of the outer shell 21. The shaped sponge will form the same shape as the inner wall of the outer shell 21, eventually forming a large sponge block.

[0041] After molding is completed, four tension rods 37 are inserted into the through-hole and connected to the bottom of the inner wall of the side telescopic arm 33 by bolts. Then, the tension rods 37 are lifted, which drives the bottom of the side telescopic arm 33 to lift the movable base plate 34 upward. The movable base plate 34 slides up along the inner wall of the outer shell 21, thereby lifting the sponge block formed on the upper surface of the movable base plate 34 out from the inside of the outer shell 21. Since the side of the movable base plate 34 is connected to the outer surface of the side telescopic arm 33 by a snap-fit, the side telescopic arm 33 is separated from the movable base plate 34 after the snap-fit ​​is released. However, the formed sponge block is still located on the upper surface of the movable base plate 34. At this time, the processed formed sponge blocks are stacked together for cooling. Since each group of sponge blocks is separated from each other by the movable base plate 34, the sponge blocks will not stick together during the cooling process.

[0042] During the normal molding process, the sides of a sponge block are usually relatively flat and smooth because they are shaped by the outer shell 21. However, the upper surface of the sponge block is usually uneven because it expands freely without restriction. This requires further cutting, which increases the production process and costs. The scraps after cutting are usually scrapped, resulting in waste. In this device, the bottom plate cover 35 continuously presses the upper surface of the sponge block flat under the action of gravity during the expansion process. Therefore, the upper surface of the produced sponge block is relatively flat, and the expansion speed of the sponge block is limited to prevent it from expanding too quickly and causing the internal structure of the sponge block to become too loose.

[0043] Since the outer casing 21 of the device has a fixed volume, the amount of mixed material poured in each time is fixed. During the expansion of the sponge, the gradually expanding sponge will gradually push the bottom cover 35 upward. At this time, the upper surface of the bottom cover 35 will push the moving bottom block 42 upward. The moving bottom block 42 is pushed upward through the connecting bend pipe 51. Since the upper part of the fixed round shell 41 is inclined inward, the connecting bend pipe 51 pushes the slotted pipe 52 to the outside of the fixed round shell 41. At this time, the sealing end 54 completely slides out of the fixed round shell 41. The slotted pipe 52 connects the inside of the outer casing 21 with the exhaust pipes 22 on both sides through the side slot. At this time, the toxic gas and heat generated inside the outer casing 21 are discharged to the outside through the exhaust pipe 22, avoiding the diffusion of waste gas and also avoiding the accident of the operator being burned due to excessive heat inside the device when the operator takes out the sponge.

[0044] Before production, the mixing device needs to be stirred. However, the stirred material tends to stick to the outer surface of the container, resulting in material residue inside the mixing device and causing waste. Therefore, before using the device for sponge production, the mixing is performed directly inside the device. The user pours the mixture into the forming box 2 and adjusts the height of the support leg 6. Due to gravity, the planar rotating rod 17 and the telescopic rod 18 are vertical, so the lower part of the tube 13 remains vertical, allowing it to be easily inserted into the forming box 2. After contacting the upper surface of the movable base plate 34, the mixing device 1 is positioned as follows: Figure 2 In the state shown, the rotating motor 12 is started to rotate. The vertical rotating rod 16, the flat rotating rod 17, and the telescopic rod 18 stir the bottom and top layers of the mixture, respectively. Since the telescopic rod 18 can slide along the inner wall of the flat rotating rod 17, the telescopic rod 18 can automatically extend and retract under the action of centrifugal force, thereby fully sweeping across the upper surface of the movable bottom plate 34 and stirring the material at the bottom.

[0045] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims. All of these forms are within the protection scope of the present invention.

Claims

1. A safe and environmentally friendly sponge product molding equipment, comprising a stirring device (1), characterized in that: The lower part of the outer surface of the stirring device (1) is movably connected to the forming box (2), and the lower surface of the forming box (2) is evenly provided with adjusting support legs (6). The forming box (2) includes an outer shell (21), and an adjusting frame (3) is slidably connected to the inner wall of the outer shell (21). A through hole is provided at the center of the upper surface of the adjusting frame (3). A sealing cover (23) is rotatably connected to the center of the upper surface of the adjusting frame (3) through the through hole. Mounting holes for installing exhaust pipes (22) are symmetrically provided on the left and right sides of the upper surface of the adjusting frame (3). Exhaust pipes (22) are symmetrically arranged on the left and right sides of the upper surface of the adjusting frame (3) through the mounting holes. The adjustment frame (3) includes an adapter top cover (31), a bottom plate cover (35) is slidably connected to the lower part of the inner wall of the adapter top cover (31), a composite cylinder (4) is fixedly connected to the axis of the upper surface of the bottom plate cover (35), external connecting blocks (32) are evenly arranged on the side of the adapter top cover (31), a side telescopic arm (33) is fixedly connected to the lower surface of the external connecting block (32), a movable bottom plate (34) is movably connected to the side of the lower surface of the side telescopic arm (33) near the sealing cover (23), and a connecting spring (36) is provided at the bottom of the inner wall of the side telescopic arm (33).

2. The safe and environmentally friendly sponge product molding equipment according to claim 1, characterized in that: The number of the adjustment support legs (6) is four. The top of the adjustment support legs (6) is fixedly connected to the lower surface of the outer shell (21). The inner cavity of the outer shell (21) is evenly provided with vertical sliding grooves. The outer surface of the external connecting block (32) is slidably connected to the inner wall of the outer shell (21) through the vertical sliding grooves.

3. The safe and environmentally friendly sponge product molding equipment according to claim 1, characterized in that: The number of external connecting blocks (32) is four. The upper surface of the outer shell (21) is evenly provided with through-holes that extend to the bottom of the outer shell (21). The inner wall of the outer shell (21) is movably connected to a tension rod (37) through the through-holes. The lower part of the outer surface of the tension rod (37) is bolted to the bottom of the inner wall of the side telescopic arm (33) through a threaded groove. The bottom end of the connecting spring (36) is fixedly connected to the bottom of the inner wall of the side telescopic arm (33).

4. The safe and environmentally friendly sponge product molding equipment according to claim 1, characterized in that: The stirring device (1) includes a fixed plate (11), a rotating motor (12) is fixedly connected to the middle of the lower surface of the fixed plate (11), a tube (13) is fixedly connected to the outer surface of the output shaft of the rotating motor (12), an adapter (15) is slidably connected to the lower part of the inner wall of the tube (13), a buffer spring (14) is fixedly connected to the upper part of the inner wall of the tube (13), vertical rotating rods (16) are evenly arranged on the lower part of the outer surface of the adapter (15), a planar rotating rod (17) is rotatably connected to the bottom end of the vertical rotating rod (16) through a rotating joint, and a telescopic rod (18) is slidably connected to the inner wall of the planar rotating rod (17).

5. The safe and environmentally friendly sponge product molding equipment according to claim 4, characterized in that: There are four vertical rotating rods (16). The middle part of the vertical rotating rod (16) is rotatably connected to a hinge joint. The outer surface of the planar rotating rod (17) is movably connected to the upper surface of the movable base plate (34). The outer surface of the tube (13) is movably connected to the inner wall of the adapter top cover (31) through a through-hole.

6. The safe and environmentally friendly sponge product molding equipment according to claim 1, characterized in that: The synthesis cylinder (4) includes a fixed circular shell (41), a movable bottom block (42) is slidably connected to the lower part of the inner wall of the fixed circular shell (41), the inner wall of the fixed circular shell (41) is evenly provided with side sliding openings, the inner wall of the fixed circular shell (41) is evenly provided with open passage pipes (5) through the side sliding openings, and the middle part of the inner cavity of the movable bottom block (42) is provided with a through opening.

7. The safe and environmentally friendly sponge product molding equipment according to claim 6, characterized in that: The upper surface of the fixed circular shell (41) is fixedly connected to the lower surface of the adapter top cover (31) at the axis, the lower surface of the movable bottom block (42) is fixedly connected to the upper surface of the bottom plate cover (35) at the axis, the number of open tubes (5) is twelve, the bottom end of the open tubes (5) is fixedly connected to the upper surface of the bottom plate cover (35), and the upper part of the fixed circular shell (41) is bent inward at a certain angle.

8. The safe and environmentally friendly sponge product molding equipment according to claim 7, characterized in that: The open pipe (5) includes a connecting bend (51), the top end of the connecting bend (51) is fixedly connected to a slotted pipe (52), the end of the slotted pipe (52) away from the connecting bend (51) is fixedly connected to a sealing end (54), and a small spring (53) is sleeved on the outer surface of the slotted pipe (52) away from the connecting bend (51).

9. The safe and environmentally friendly sponge product molding equipment according to claim 8, characterized in that: The bottom end of the connecting bend (51) is fixedly connected to the upper surface of the bottom plate cover (35). The outer surface of the slotted through pipe (52) is slidably connected to the inner wall of the fixed round shell (41) through the side sliding port. The outer surface of the sealing end (54) is slidably connected to the inner wall of the fixed round shell (41) through the side sliding port. One end of the small spring (53) is fixedly connected to the outer surface of the fixed round shell (41). The other end of the small spring (53) is fixedly connected to the inner cavity of the sealing end (54). The connecting bend (51) is made of flexible rubber.

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