A curing conveying device for high polymer sponge production

Abstract

The present application relates to the technical field of polymer sponge processing, and discloses a curing conveying device for polymer sponge production, which comprises a feeding conveyor belt, a discharging conveyor belt and a curing device. The present application realizes automatic lifting through the cooperation of the feeding conveyor belt, the discharging conveyor belt and the curing device, as well as the horizontal movement of the threaded rod driving lifting mechanism and the cooperation of the baffle channel and the guide rod, so that the whole process of sponge from feeding, lifting, standing and curing to discharging does not need manual intervention, realizes continuous operation in a pipeline mode, improves the curing efficiency, and further through the through hole design of the pressing plate and the supporting plate and the through hole design of the frame bottom surface, in combination with the air circulation mechanism composed of the electric heating tube and the fan, the air circulation mechanism can form an air flow upward from the bottom surface of the sponge, and the pressing plate and the supporting plate can extrude the sponge, so that the central thickness of the sponge is reduced, the sponge is fully contacted with the air flow, and the cooling time of the center of the sponge is shortened.

Description

Technical Field

[0001] This invention relates to the field of polymer sponge processing technology, specifically to a curing and conveying device for polymer sponge production. Background Technology

[0002] Polymer sponges are essentially a type of foam plastic. They are made by introducing a large number of tiny air bubbles into polymer materials such as plastics and rubber through physical or chemical methods. Because most of the volume is filled with gas, the overall weight is very light. The interior contains countless tiny pores, which can be interconnected or closed. This determines the sponge's water absorption and breathability. It can be compressed and deformed under external force and can quickly return to its original shape after the external force is removed. By changing the material formula and foaming process, the density, hardness, elasticity, and pore size of the sponge can be controlled to meet the needs of different scenarios.

[0003] Polymer sponges require a curing process during processing. Sponge curing refers to the process of letting freshly foamed sponges stand still under certain temperature and ventilation conditions to allow unfinished chemical reactions to continue, ultimately stabilizing the sponge's properties. For example, CN223802901U, this solution adjusts the height between different support plates by adjusting the insertion of support plates into support blocks of different heights, thereby further adapting the height to sponges of different sizes and models, thus improving the compatibility of the sponge curing device.

[0004] However, existing technologies, especially this particular solution, still have the following problems: 1. When curing sponges, sponges need to be put into curing equipment manually or automatically, and then taken out after curing is completed. Then new sponges are put in. This method cannot achieve automated sponge transportation, which will make it difficult to improve curing efficiency for polymer sponge curing production lines. 2. Because the center temperature of polymer sponge is high after processing, the above-mentioned device or conventional device is simply placed on the polymer sponge during curing, which makes it difficult to cool down the center temperature quickly. Summary of the Invention

[0005] The purpose of this invention is to provide a technical solution that achieves automatic lifting by cooperating the feeding conveyor belt, the discharging conveyor belt and the curing device, as well as by using the threaded rod to drive the lifting mechanism to move horizontally and by cooperating the baffle channel and the guide rod. The sponge is squeezed by the pressure plate and the pallet, which reduces the center thickness of the sponge and allows it to fully contact the airflow, thereby solving the problems in the prior art mentioned in the background.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A curing conveyor for producing polymer sponges includes an infeed conveyor belt, an outfeed conveyor belt, and a curing device, wherein the infeed conveyor belt and the outfeed conveyor belt are located at the inlet and outlet of the curing device, respectively. The curing device includes a body, side plates, through slots, baffles, a lifting mechanism, and an air circulation mechanism. The side plates are fixedly installed on the body. Two through slots are opened on two opposite surfaces of the side plates. The feeding conveyor belt is located on one side of one through slot, and the discharging conveyor belt is located on one side of the other through slot. The baffle is fixedly connected to the top of the body. The air circulation mechanism is located between the body and the side plates. The lifting mechanism cooperates with the baffle. The feeding conveyor belt transports the polymer sponge into the machine body. Initially, the lifting mechanism is located near the feeding conveyor belt to receive the polymer sponge. Then, the lifting mechanism moves the polymer sponge horizontally to the middle of the machine body and lifts the polymer sponge a certain distance so that the polymer sponge can be fully cured in the machine body.

[0007] Preferably, the curing device further includes a threaded rod and a power source. The threaded rod is rotatably connected between two opposite side plates, and the power source is mounted on one of the side plates via a frame. One end of the threaded rod is connected to the power source, and the lifting mechanism cooperates with the threaded rod.

[0008] Preferably, the lifting mechanism includes a frame, a traction seat, a sliding seat, and a through hole. The sliding seat is fixedly installed above the frame, the traction seat is threadedly connected to a threaded rod, the frame and the sliding seat are slidably connected below the traction seat, a guide rod is fixedly installed on the side of the sliding seat, and a through hole is provided on the bottom surface of the frame.

[0009] Preferably, the baffle is provided with a first traction groove, a second traction groove and a third traction groove, the two third traction grooves are connected to the two ends of the second traction groove, the two first traction grooves are respectively connected to one end of the two third traction grooves, and the guide rod is slidably connected inside the second traction groove.

[0010] Preferably, the lifting mechanism further includes a pressure plate and a support plate. The pressure plate is fixedly installed on the connecting rod of the traction seat and is located inside the frame. The support plate is vertically slidably connected to the frame and located below the pressure plate. Both the pressure plate and the support plate have through holes on their surfaces.

[0011] Preferably, the bottom surface of the frame is provided with a receiving groove, the depth of the receiving groove is the same as the height of the support plate, and the bottom surface of the receiving groove is provided with a through hole.

[0012] Preferably, the frame has a limiting groove on its side, and a traction mechanism is connected between the side of the tray and the side plate.

[0013] Preferably, the traction mechanism includes a traction rod, a first guide groove, and a second guide groove. The traction rod is fixedly installed on the side of the support plate and slidably connected in the limiting groove. The first guide groove and the second guide groove are interconnected and formed on the side plate. One end of the limiting groove is slidably connected inside the first guide groove and the second guide groove.

[0014] Preferably, the air circulation mechanism includes an airflow channel, an electric heating element, and a fan. The airflow channel is located inside the machine body, and the electric heating element and the fan are both fixedly installed inside the machine body, with the fan positioned above the electric heating element.

[0015] Preferably, the air circulation mechanism further includes a filter screen, which is fixedly installed inside the airflow channel.

[0016] Technical effects and advantages of the present invention: The curing and conveying device for polymer sponge production proposed in this invention has the following advantages compared with the prior art: This invention achieves automatic lifting and lowering through the cooperation of the feeding conveyor belt, the discharging conveyor belt, and the curing device, as well as the horizontal movement of the lifting mechanism driven by the threaded rod and the cooperation of the baffle channel and the guide rod. This allows the sponge to be raised and lowered without manual intervention throughout the entire process from feeding, lifting, static curing, to discharging, realizing continuous assembly line operation and improving curing efficiency. Furthermore, through the through-hole design of the pressure plate and the support plate, as well as the through-hole design of the bottom surface of the frame, combined with the air circulation mechanism composed of electric heating tubes and fans, the air circulation mechanism can form an airflow from the bottom surface of the sponge and transport it upward. At the same time, the pressure plate and the support plate will squeeze the sponge, reducing the thickness of the sponge at the center and allowing it to fully contact the airflow, thereby shortening the cooling time of the sponge's center. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the curing device of the present invention; Figure 3 This is a schematic diagram of the main structure of the body of the present invention; Figure 4 This is a schematic diagram of the main structure of the air circulation mechanism of the present invention; Figure 5 This is a schematic diagram of the main structure of the baffle of the present invention; Figure 6 This is a schematic diagram of the main structure of the lifting mechanism of the present invention; Figure 7 This is a cross-sectional structural diagram of the framework of the present invention; Figure 8 This is a schematic diagram of the main structure of the side plate of the present invention.

[0018] In the diagram: 1. Feed conveyor belt; 2. Discharge conveyor belt; 3. Curing device; 31. Machine body; 32. Side plate; 33. Through groove; 34. Baffle; 341. First traction groove; 342. Second traction groove; 343. Third traction groove; 35. Lifting mechanism; 351. Frame; 352. Traction seat; 353. Sliding seat; 354. Pressure plate; 355. Through hole; 356. Support plate; 357. Limiting groove; 358. Guide rod; 359. Receiving groove; 36. Threaded rod; 37. Power source; 38. Air circulation mechanism; 381. Airflow channel; 382. Filter screen; 383. Electric heating tube; 384. Fan; 391. Traction rod; 392. First guide groove; 393. Second guide groove. Detailed Implementation

[0019] The subject matter described herein will now be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and implement the subject matter described herein, and changes may be made to the function and arrangement of the elements discussed without departing from the scope of this specification. Various processes or components may be omitted, substituted, or added as needed in the examples. Furthermore, features described in some examples may be combined in other examples.

[0020] The invention provides, for example Figures 1 to 8 As shown, a curing conveyor device for producing polymer sponges is provided, including a feeding conveyor belt 1, a discharging conveyor belt 2, and a curing device 3. The feeding conveyor belt 1 and the discharging conveyor belt 2 are located at the inlet and outlet positions of the curing device 3, respectively. The curing device 3 includes a body 31, a side plate 32, a through groove 33, a baffle 34, a lifting mechanism 35, and an air circulation mechanism 38. The side plate 32 is fixedly installed on the body 31. Two through grooves 33 are opened on two opposite surfaces of the side plate 32. The feeding conveyor belt 1 is located on one side of one through groove 33, and the discharging conveyor belt 2 is located on one side of the other through groove 33. The baffle 34 is fixedly connected to the top of the body 31. The air circulation mechanism 38 is disposed between the body 31 and the side plate 32. The lifting mechanism 35 cooperates with the baffle 34.

[0021] Please see Figure 1 and Figure 2 In this embodiment, the feeding conveyor belt 1 transports the polymer sponge to the machine body 31. Initially, the lifting mechanism 35 is located near the feeding conveyor belt 1 to receive the polymer sponge. Then, the lifting mechanism 35 moves the polymer sponge horizontally to the middle part of the machine body 31. At the same time, the lifting mechanism 35 lifts the polymer sponge a certain distance so that the polymer sponge can be fully cured in the machine body 31.

[0022] It should be noted that the length of the polymer sponge is greater than the length of the lifting mechanism 35. When the lifting mechanism 35 lifts the polymer sponge, both ends of the polymer sponge will extend a certain distance and be suspended in the air, so that the polymer sponge can contact the discharge conveyor belt 2 first when it is discharged.

[0023] The curing device 3 also includes a threaded rod 36 and a power source 37. The threaded rod 36 is rotatably connected between two opposite side plates 32. The power source 37 is mounted on one of the side plates 32 via a frame. One end of the threaded rod 36 is connected to the power source 37. The lifting mechanism 35 cooperates with the threaded rod 36.

[0024] Please see Figure 2 When the power source 37 is working, it drives the threaded rod 36 to rotate around its own axis. The lifting mechanism 35 and the threaded rod 36 are connected by a threaded engagement. The rotational motion of the threaded rod 36 is converted into the horizontal linear motion of the lifting mechanism 35 along the axial direction of the threaded rod 36. The power source 37 is a motor, which is connected to the threaded rod 36 through a coupling to drive the lifting mechanism 35.

[0025] The lifting mechanism 35 includes a frame 351, a traction seat 352, a sliding seat 353, and a through hole 355. The sliding seat 353 is fixedly installed on the top of the frame 351. The traction seat 352 is threadedly connected to the threaded rod 36. The frame 351 and the sliding seat 353 are slidably connected below the traction seat 352. A guide rod 358 is fixedly installed on the side of the sliding seat 353. A through hole 355 is opened on the bottom surface of the frame 351.

[0026] The baffle 34 is provided with a first traction groove 341, a second traction groove 342 and a third traction groove 343. The two third traction grooves 343 are connected to the two ends of the second traction groove 342, and the two first traction grooves 341 are respectively connected to one end of the two third traction grooves 343. The guide rod 358 is slidably connected inside the second traction groove 342.

[0027] Please see Figure 3 , Figure 5 and Figure 6When the sponge is placed inside the frame 351 for curing, the airflow inside the machine body 31 can directly act on the bottom surface of the sponge through the through-hole 355 on the bottom surface, avoiding the problems of poor airflow and uneven heat dissipation at the bottom of the sponge caused by the complete sealing of the bottom plate of the frame 351. The traction seat 352 is driven to move horizontally by the threaded rod 36, which drives the entire frame 351 to move horizontally synchronously. At the same time, the guide rod 358 on the side of the sliding seat 353 is guided by the external constraint track, forcing the frame 351 and the sliding seat 353 to undergo vertical displacement relative to the traction seat 352 during the horizontal movement with the traction seat 352. The guide rod 358 is first in the first traction groove 341 near the feed side. At this time, the frame 351 is positioned... The guide rod 358 is positioned at a lower level to receive the sponge delivered by the feed conveyor belt 1. As the horizontal movement continues, the guide rod 358 enters the third traction groove 343. Since this groove is inclined or has a certain height change, the guide rod 358 is forced to rise or fall along the groove, thereby driving the entire frame 351 to move vertically through the sliding seat 353, lifting the sponge to a suitable curing height. Subsequently, the guide rod 358 enters the second traction groove 342, which remains horizontal, and the frame 351 maintains the height after being lifted, allowing the sponge to be fully cured in the middle of the machine body 31. After curing, the guide rod 358 continues to enter the third traction groove 343 and the first traction groove 341 on the other side, and the frame 351 descends, sending the sponge out.

[0028] The lifting mechanism 35 also includes a pressure plate 354 and a support plate 356. The pressure plate 354 is fixedly installed on the connecting rod of the traction seat 352. The pressure plate 354 is located inside the frame 351. The support plate 356 is vertically slidably connected to the frame 351 and located below the pressure plate 354. Both the pressure plate 354 and the support plate 356 have through holes 355 on their surfaces.

[0029] Please see Figure 7 When the frame 351 is lifted vertically, the support plate 356 slides upward relative to the frame 351 under the action of gravity or external traction, and together with the pressure plate 354 above, forms a moderate upper and lower clamping of the sponge to prevent the sponge from shifting position or falling due to inertia and vibration during movement, thus ensuring the stability of the conveying process. Secondly, since the surfaces of the pressure plate 354 and the support plate 356 are provided with through holes 355, the clamping state does not hinder the airflow. The circulating air in the machine body 31 can pass through the through holes of the support plate 356, the sponge body, and the through holes 355 of the pressure plate 354 from bottom to top to form a convection circulation, so that the upper and lower surfaces of the sponge can fully contact the flowing air.

[0030] A receiving groove 359 is provided on the bottom surface of the frame 351. The depth of the receiving groove 359 is the same as the height of the support plate 356. A through hole 355 is provided on the bottom surface of the receiving groove 359.

[0031] Please see Figure 7When the lifting mechanism 35 is at the feeding end or the discharging end, the frame 351 is in a lower position, and the pallet 356 sinks into the receiving groove 359. The sponge can be directly and smoothly slid into the frame 351 from the feeding conveyor belt 1 without jamming due to the protrusion of the pallet 356 or the need to raise the height of the conveyor belt. When discharging, the pallet 356 sinks so that the height difference between the bottom of the sponge and the bottom surface of the frame 351 disappears, and the sponge can be smoothly pushed onto the discharging conveyor belt 2. In the curing and lifting stage, the pallet 356 rises under the action of the traction mechanism and rises from the receiving groove 359, lifting the sponge to the curing position that cooperates with the pressure plate 354.

[0032] A limiting groove 357 is provided on the side of the frame 351. A traction mechanism is connected between the side of the support plate 356 and the side plate 32. The traction mechanism includes a traction rod 391, a first guide groove 392 and a second guide groove 393. The traction rod 391 is fixedly installed on the side of the support plate 356 and slidably connected in the limiting groove 357. The first guide groove 392 and the second guide groove 393 are interconnected and are provided on the side plate 32. One end of the limiting groove 357 is slidably connected inside the first guide groove 392 and the second guide groove 393.

[0033] Please see Figure 6 and Figure 8 When the frame 351 moves horizontally under the drive of the threaded rod 36, the traction mechanism uses a specific track on the side plate 32 as a reference to apply a vertical displacement command to the pallet 356, so that the pallet 356 rises or sinks precisely under the constraint of the limiting groove 357. Since the outer end of the traction rod 391 is constrained in the first guide groove 392 or the second guide groove 393 on the side plate 32, and the first guide groove 392 or the second guide groove 393 itself has height undulations, the traction rod 391 is forced to rise and fall along the contour of the first guide groove 392 or the second guide groove 393 while moving horizontally. The rising and falling motion of the traction rod 391 is transmitted to the pallet 356 through the vertical guidance of the limiting groove 357, driving the pallet 356 to rise or sink relative to the frame 351.

[0034] The air circulation mechanism 38 includes an airflow channel 381, an electric heating element 383, and a fan 384. The airflow channel 381 is located inside the body 31. The electric heating element 383 and the fan 384 are both fixedly installed inside the body 31. The fan 384 is located above the electric heating element 383. The air circulation mechanism 38 also includes a filter screen 382, ​​which is fixedly installed inside the airflow channel 381.

[0035] Please see Figure 3The fan 384 rotates to drive airflow. The airflow enters the body 31 through the airflow channel 381. It is first heated to the appropriate temperature required for sponge curing by the heating tube 383, and then sent into the sponge placement area inside the body 31. The warm airflow continuously blows on the surface of the polymer sponge in a convection manner, and penetrates the sponge body through the through holes 355 on the bottom surface of the frame 351, the pressure plate 354 and the support plate 356, quickly removing the heat accumulated in the center of the sponge and replenishing the temperature and oxygen required for the curing reaction. Before the airflow enters the airflow channel 381, it must pass through the filter screen 382. Dust, debris and particulate matter carried in the air are intercepted by the filter screen 382. Only clean air can be heated by the heating tube 383 and enter the body 31 to contact the sponge.

[0036] The embodiments of the present invention have been described above, but 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, all of which are within the protection scope of the present invention.

Claims

1. A curing and conveying device for polymer sponge production, characterized in that, It includes a feeding conveyor belt (1), a discharging conveyor belt (2), and a curing device (3), wherein the feeding conveyor belt (1) and the discharging conveyor belt (2) are located at the inlet and outlet of the curing device (3), respectively; The curing device (3) includes a body (31), a side plate (32), a through groove (33), a baffle (34), a lifting mechanism (35), and an air circulation mechanism (38). The side plate (32) is fixedly installed on the body (31). Two through grooves (33) are opened on two opposite surfaces of the side plate (32). The feeding conveyor belt (1) is located on one side of one of the through grooves (33), and the discharging conveyor belt (2) is located on one side of the other through groove (33). The baffle (34) is fixedly connected to the top of the body (31). The air circulation mechanism (38) is located between the body (31) and the side plate (32). The lifting mechanism (35) cooperates with the baffle (34). The feeding conveyor belt (1) transports the polymer sponge to the machine body (31). Initially, the lifting mechanism (35) is located near the feeding conveyor belt (1) to receive the polymer sponge. Then, the lifting mechanism (35) moves the polymer sponge horizontally to the middle part of the machine body (31). At the same time, the lifting mechanism (35) lifts the polymer sponge a certain distance so that the polymer sponge can be fully matured in the machine body (31).

2. The curing and conveying device for polymer sponge production according to claim 1, characterized in that, The curing device (3) also includes a threaded rod (36) and a power source (37). The threaded rod (36) is rotatably connected between two opposite side plates (32). The power source (37) is mounted on one of the side plates (32) via a frame. One end of the threaded rod (36) is connected to the power source (37). The lifting mechanism (35) cooperates with the threaded rod (36).

3. The curing and conveying device for polymer sponge production according to claim 2, characterized in that, The lifting mechanism (35) includes a frame (351), a traction seat (352), a sliding seat (353), and a through hole (355). The sliding seat (353) is fixedly installed above the frame (351). The traction seat (352) is threadedly connected to the threaded rod (36). The frame (351) and the sliding seat (353) are slidably connected below the traction seat (352). A guide rod (358) is fixedly installed on the side of the sliding seat (353). A through hole (355) is opened on the bottom surface of the frame (351).

4. The curing and conveying device for polymer sponge production according to claim 3, characterized in that, The baffle (34) is provided with a first traction groove (341), a second traction groove (342) and a third traction groove (343). The two third traction grooves (343) are connected to the two ends of the second traction groove (342), and the two first traction grooves (341) are respectively connected to one end of the two third traction grooves (343). The guide rod (358) is slidably connected inside the second traction groove (342).

5. The curing and conveying device for polymer sponge production according to claim 3, characterized in that, The lifting mechanism (35) also includes a pressure plate (354) and a support plate (356). The pressure plate (354) is fixedly installed on the connecting rod of the traction seat (352). The pressure plate (354) is located inside the frame (351). The support plate (356) is vertically slidably connected to the frame (351) and located below the pressure plate (354). The surfaces of the pressure plate (354) and the support plate (356) are provided with through holes (355).

6. The curing and conveying device for polymer sponge production according to claim 5, characterized in that, The bottom surface of the frame (351) is provided with a receiving groove (359), the depth of the receiving groove (359) is the same as the height of the support plate (356), and the bottom surface of the receiving groove (359) is provided with a through hole (355).

7. The curing and conveying device for polymer sponge production according to claim 5, characterized in that, The frame (351) has a limiting groove (357) on its side, and a traction mechanism is connected between the side of the pallet (356) and the side plate (32).

8. A curing and conveying device for polymer sponge production according to claim 7, characterized in that, The traction mechanism includes a traction rod (391), a first guide groove (392), and a second guide groove (393). The traction rod (391) is fixedly installed on the side of the support plate (356) and slidably connected in the limiting groove (357). The first guide groove (392) and the second guide groove (393) are interconnected and opened on the side plate (32). One end of the limiting groove (357) is slidably connected inside the first guide groove (392) and the second guide groove (393).

9. A curing and conveying device for polymer sponge production according to claim 1, characterized in that, The air circulation mechanism (38) includes an airflow channel (381), an electric heating tube (383), and a fan (384). The airflow channel (381) is located inside the body (31). The electric heating tube (383) and the fan (384) are both fixedly installed inside the body (31). The fan (384) is located above the electric heating tube (383).

10. A curing and conveying device for polymer sponge production according to claim 9, characterized in that, The air circulation mechanism (38) also includes a filter (382), which is fixedly installed inside the airflow channel (381).

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