A water-removable polyurethane resin circulating bellows

Abstract

The utility model relates to polyurethane resin processing technical field, and disclose a kind of polyurethane resin circulating air bellow of water removal, including box, the polyurethane resin circulating air bellow of water removal, when needing to replace a group of filter plate, activated carbon adsorption plate, rotating rocker, rotating by synchronous wheel, synchronous belt, resistance groove, movable rod, round block, rotating rod, screw, connecting block, baffle synchronous upshift, the through-hole of a group of baffle and another group of tee pipe one, air inlet hole, tee pipe two alignment, another group of baffle is shielded to another group of tee pipe one, air inlet hole, tee pipe two, change the flow direction of external air and the hot gas in box, enter the activated carbon adsorption plate of baffle other side, filter plate carry out filtering work, at this time, open the sealing door of corresponding filter plate, activated carbon adsorption plate needed to be replaced, can be replaced by drawing out, need not to stop drying work, improve work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of polyurethane resin processing technology, specifically to a polyurethane resin circulating air box that can remove water. Background Technology

[0002] Polyurethane resin is a type of polymer material made from polyisocyanates and polyols through a stepwise polymerization reaction. Its molecular structure contains urethane bonds, giving it highly tunable chemical and physical properties. It is widely used in coatings, adhesives, elastomers, and foamed plastics. During processing, a bellows is used to dry it.

[0003] According to a public notice (No.: CN215373216U) regarding a hot air drying oven for epoxy resin board production, the hot air blower operates under the control of a PLC controller. The blower draws in external gas through the air inlet of the air inlet box. The gas entering the air inlet box first contacts a non-woven fabric filter, filtering out dust. The filtered gas then passes through a baffle and contacts an electric heating element, which preheats the gas. After secondary heating by the hot air blower, the preheated gas enters a distribution box through an air supply pipe. The hot air entering the distribution box flows into the working chamber under the force of the hot air blower, contacting the epoxy resin boards placed on protrusions to dry them. This allows for more convenient and efficient epoxy resin board drying operations, with simple operation and good drying results, meeting the needs of users.

[0004] After long-term use, the filter screen and activated carbon adsorption plate of the drying oven will experience a decline in filtration efficiency due to dust accumulation or adsorption saturation, affecting the cleanliness and thermal efficiency of the drying gas. Since the filter screen and activated carbon adsorption plate are installed inside the drying oven, the equipment must be stopped when replacing them, resulting in production interruption and reduced processing efficiency. This is especially detrimental to the needs of continuous production. Frequent shutdowns not only affect the production schedule but may also increase labor maintenance costs, which is not conducive to the company's energy conservation and consumption reduction needs. Utility Model Content

[0005] The purpose of this invention is to provide a polyurethane resin circulating air box that can remove water, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a polyurethane resin circulating air box capable of removing water, comprising a box body, wherein a circulation component and a replacement component are provided on the surface of the box body, and the circulation component comprises: a filter box and a partition; The replacement component includes: The screw is used to drive the connecting block and the baffle to move synchronously. Baffles are used to prevent gas from entering. Synchronizing pulley: The synchronous pulley is used to synchronously drive the screw to rotate.

[0007] Preferably, the screw is rotatably connected to the inner wall of the filter box, the screw passes through a partition and is rotatably connected to the partition, the screw passes through and is threadedly connected to a connecting block, a baffle is fixed to the end of the connecting block away from the center of the filter box, the side of the baffle away from the connecting block is slidably connected to the inner wall of the filter box, a synchronous wheel is rotatably connected to the top of the filter box, a circular block is rotatably connected to the top of the filter box, a rotating rod is fixed to the bottom of the circular block, the bottom of the rotating rod passes through the filter box and is fixed to the top of the screw, the outer surface of the circular block is rotatably connected to the inner side of the synchronous wheel, two sets of synchronous wheels are provided, a rocker arm is fixed to the top of one set of synchronous wheels, and an abutment groove is formed on the inner side of the synchronous wheel. The outer surface of the circular block has a groove, and a movable rod is slidably connected to the inner wall of the groove. A spring is fixed to one end of the movable rod near the groove, and the other end of the spring away from the movable rod is fixed to the inner wall of the groove. A synchronous belt is connected to the surface of the synchronous pulley. When the rocker arm is rotated, the two sets of synchronous pulleys rotate synchronously through the synchronous belt. Through the rotation of the contact groove, movable rod, circular block, rotating rod, and screw, the connecting block and baffle move upward synchronously. The through hole of one set of baffles is aligned with the other set of three-way pipe one, air inlet hole, and three-way pipe two. The other set of baffles blocks the other set of three-way pipe one, air inlet hole, and three-way pipe two, so that the external air and the hot air inside the box can enter the activated carbon adsorption plate and filter plate on the other side of the partition for filtration.

[0008] Preferably, the circulation assembly includes a first connecting cover, which is fixed to the right side of the housing. A second connecting cover is fixed to the left side of the housing. Air vents are provided on both the left and right sides of the housing. A suction fan is fixed to the left side of the second connecting cover, and the output end of the suction fan is connected to the second connecting cover. A connecting pipe is fixed to the output end of the suction fan. A T-connector is fixed to the end of the connecting pipe away from the suction fan. A filter box is installed at the end of the T-connector away from the connecting pipe. An air inlet is provided on the left side of the filter box. A partition is fixed to the inner wall of the filter box. Stabilizers are fixed to the inner walls and surfaces of the filter box and the partition. An activated carbon adsorption plate and a filter plate are inserted into the inner side of the stabilizer. The top of the housing is equipped with... A hot air blower is provided, with a T-connector fixed to its input end. The end of the T-connector away from the hot air blower is connected to the right side of the filter box. The output end of the hot air blower is connected to the top of the connecting cover. A sealed door is installed on the outer surface of the filter box, and a heating rod is installed on the inner wall of the filter box. When the suction fan, hot air blower, and heating rod are turned on, external air enters the filter box through the air inlet. Activated carbon adsorption plates and filter plates filter the air, which then enters the box through the air vent via the T-connector and connecting cover, thus drying the polyurethane resin. The suction fan then draws hot air back into the filter box through the connecting pipe and T-connector, where activated carbon adsorption plates remove moisture and harmful gases before the hot air blower introduces it back into the box.

[0009] Preferably, there are four baffles and four connecting blocks, and the four sets of baffles and connecting blocks are arranged symmetrically in pairs with the center line of the filter box as the axis of symmetry. One set of baffles has two sets of through holes on its surface, and the other set of baffles has one set of through holes, which facilitates changing the flow direction of external air and hot air.

[0010] Preferably, the end of the movable rod away from the spring is set in an arc shape. When the baffle can no longer move, the screw can no longer rotate. The surface of the movable rod continuously contacts the inner wall of the contact groove, causing the movable rod to enter the slide groove. The spring is compressed. When the position of the movable rod is parallel to the contact groove, the spring is released, driving the movable rod to enter the contact groove again, which will not affect the normal rotation of the synchronous wheel.

[0011] Preferably, the inner wall of the box is fixed with a bottom plate, and a placement plate is placed on top of the bottom plate. The surface of the placement plate is provided with ventilation holes to facilitate the drying process.

[0012] Preferably, there are four activated carbon adsorption plates and filter plates, which are arranged in pairs and symmetrically about the center line of the filter box. There are two sets of sealing doors to facilitate alternating filtration.

[0013] Compared with the prior art, this utility model provides a polyurethane resin circulating air box that can remove water, which has the following beneficial effects:

[0014] 1. This water-removing polyurethane resin circulating air box, through its replaceable components, allows for easy replacement of a set of filter plates and activated carbon adsorption plates. By rotating the rocker arm, the synchronous wheel, synchronous belt, contact groove, movable rod, circular block, rotating rod, and screw rotate, causing the connecting block and baffles to move upwards synchronously. The through holes of one set of baffles align with the air inlet and air outlet of another set of three-way pipes (one and two), while the other set of baffles blocks the air inlet and air outlet of another set of three-way pipes (one and two), changing the flow of external air and hot air inside the box. This allows the air to enter the activated carbon adsorption plates and filter plates on the other side of the partition for filtration. At this point, the sealing door of the corresponding filter plate or activated carbon adsorption plate that needs replacement can be opened, and the plate can be pulled out for replacement without stopping the drying process, thus improving work efficiency.

[0015] 2. This water-removing polyurethane resin circulating air box, through its set circulation components, turns on the suction fan, hot air fan, and heating rod. The air is filtered through activated carbon adsorption plates and filter plates to remove water vapor and harmful gases. The air is then introduced back into the box through the hot air fan for circulating drying, thus improving drying efficiency. Attached Figure Description

[0016] Figure 1 This is a front view structural diagram of the present invention; Figure 2 This is a schematic diagram of the internal structure of this utility model; Figure 3 This is a schematic diagram of the internal front view structure of this utility model; Figure 4 This is a schematic diagram of the internal structure of the filter box of this utility model; Figure 5 This is a front view structural diagram of the replacement component part of this utility model; Figure 6 This is an exploded and cross-sectional structural diagram of a partial replacement component of this utility model.

[0017] In the diagram: 1. Box body; 2. Base plate; 3. Placement plate; 4. Circulation component; 40. Connecting cover one; 41. Connecting cover two; 42. Fan; 43. Connecting pipe; 44. T-pipe one; 45. Filter box; 46. Sealing door; 47. Partition plate; 48. Stabilizing frame; 49. Activated carbon adsorption plate; 400. Filter plate; 401. Heating rod; 402. T-pipe two; 403. Hot air blower; 404. Air inlet; 5. Replacement component; 50. Screw; 51. Connecting block; 52. Baffle; 53. Synchronous pulley; 54. Round block; 55. Rotating rod; 56. Rocker arm; 57. Contact groove; 58. Slide groove; 59. Movable rod; 500. Spring. Detailed Implementation

[0018] like Figures 1-6As shown, this utility model provides a technical solution: a polyurethane resin circulating air box capable of removing water, including a box body 1. The surface of the box body 1 is provided with a circulation component 4 and a replacement component 5. The circulation component 4 includes: a filter box 45 and a partition 47; the replacement component 5 includes: a screw 50, a connecting block 51, a baffle 52, a synchronous wheel 53, a round block 54, a rotating rod 55, a rocker arm 56, a contact groove 57, a sliding groove 58, a movable rod 59, and a spring 500.

[0019] A screw 50 is rotatably connected to the inner wall of the filter box 45. The screw 50 passes through a partition 47 and is rotatably connected to the partition 47. A connecting block 51 is threaded through and connected to the screw 50. A baffle 52 is fixed to the end of the connecting block 51 away from the center of the filter box 45. The side of the baffle 52 away from the connecting block 51 is slidably connected to the inner wall of the filter box 45. A synchronous wheel 53 is rotatably connected to the top of the filter box 45. A round block 54 is rotatably connected to the top of the filter box 45. A rotating rod 55 is fixed to the bottom of the round block 54. The bottom of the rotating rod 55 passes through the filter box 45. The rotating rod 55 is fixed to the top of the screw 50. The outer surface of the round block 54 is rotatably connected to the inner side of the synchronous wheel 53. Two sets of synchronous wheels 53 are provided. A rocker arm 56 is fixed to the top of one set of synchronous wheels 53. An abutment groove 57 is opened on the inner side of the synchronous wheel 53. A sliding groove 58 is opened on the outer surface of the round block 54. A movable rod 59 is slidably connected to the inner wall of the sliding groove 58. A spring 500 is fixed to the end of the movable rod 59 near the sliding groove 58. The end of the spring 500 away from the movable rod 59 is fixed to the inner wall of the sliding groove 58. The surface of the synchronous wheel 53 is connected to a synchronous transmission mechanism. The filter box 45 has four sets of baffles 52 and connecting blocks 51, arranged in pairs around the center line of the filter box 45. One set of baffles 52 has two sets of through holes on its surface, and the other set of baffles 52 has one set of through holes. The end of the movable rod 59 away from the spring 500 is rounded. When the rocker arm 56 is rotated, the two sets of synchronous pulleys 53 rotate synchronously via the synchronous belt. Through the contact groove 57 and the movable rod 59, the circular block 54, the rotating rod 55, and the screw 50 can be rotated synchronously. The connecting blocks 51 and baffles 52 are also rotated. Simultaneously moving upwards, the through holes of one set of baffles 52 align with another set of three-way pipe 44, air inlet 404, and three-way pipe 402. The other set of baffles 52 blocks the other set of three-way pipe 44, air inlet 404, and three-way pipe 402, allowing external air and hot air from inside the chamber 1 to enter the activated carbon adsorption plate 49 and filter plate 400 on the other side of the partition 47 for filtration. At this time, the sealing door 46 of the corresponding filter plate 400 and activated carbon adsorption plate 49 that need to be replaced can be opened, and they can be pulled out for replacement without stopping the drying process, thus improving work efficiency.

[0020] The circulation component 4 includes a first connecting cover 40, which is fixed to the right side of the housing 1. A second connecting cover 41 is fixed to the left side of the housing 1. Air vents are provided on both the left and right sides of the housing 1. A suction fan 42 is fixed to the left side of the second connecting cover 41. The output end of the suction fan 42 is connected to the second connecting cover 41. A connecting pipe 43 is fixed to the output end of the suction fan 42. A three-way pipe 44 is fixed to the end of the connecting pipe 43 away from the suction fan 42. A filter is installed at the end of the three-way pipe 44 away from the connecting pipe 43. The filter box 45 has an air inlet 404 on its left side. A partition 47 is fixed to the inner wall of the filter box 45. Stabilizers 48 are fixed to the inner walls and surfaces of the filter box 45 and the partition 47. An activated carbon adsorption plate 49 and a filter plate 400 are inserted into the inner side of the stabilizer 48. A hot air blower 403 is installed on the top of the box 1. A three-way pipe 402 is fixed to the input end of the hot air blower 403. The end of the three-way pipe 402 furthest from the hot air blower 403 is connected to the right side of the filter box 45. The output end is connected to the top of the connecting cover 40. A sealing door 46 is installed on the outer surface of the filter box 45. A heating rod 401 is installed on the inner wall of the filter box 45. There are four activated carbon adsorption plates 49 and four filter plates 400. The four activated carbon adsorption plates 49 and four filter plates 400 are divided into two groups and are symmetrically arranged with the center line of the filter box 45 as the axis of symmetry. There are two sets of sealing doors 46. When the suction fan 42, the hot air fan 403, and the heating rod 401 are turned on, the outside air enters through the air inlet 40. 4. The air enters the filter box 45 and is filtered by the activated carbon adsorption plate 49 and filter plate 400. It then enters the box 1 through the air outlet via the three-way pipe 402 and connecting cover 40, thus drying the polyurethane resin. The suction fan 42 draws the hot air back into the filter box 45 through the connecting pipe 43 and three-way pipe 44. The activated carbon adsorption plate 49 removes moisture and harmful gases, and the hot air is then introduced back into the box 1 by the hot air fan 403, thus circulating and drying the resin and improving the drying efficiency.

[0021] A bottom plate 2 is fixed to the inner wall of the box 1, and a placement plate 3 is placed on the top of the bottom plate 2. The surface of the placement plate 3 is provided with ventilation holes to facilitate the placement of polyurethane resin for drying.

[0022] When polyurethane resin needs to be dried, place the polyurethane resin on the surface of the placement plate 3, turn on the suction fan 42, hot air fan 403, and heating rod 401. At this time, outside air enters the filter box 45 through the air inlet 404, is filtered by the activated carbon adsorption plate 49 and filter plate 400, and enters the chamber 1 through the air outlet through the three-way pipe 402 and connecting cover 40, thus drying the polyurethane resin. At the same time, the suction fan 42 draws hot air back into the filter box 45 through the connecting pipe 43 and three-way pipe 44, and then through the activated carbon... The adsorption plate 49 removes moisture and harmful gases, which are then introduced back into the chamber 1 via the hot air blower 403 for circulating drying, improving drying efficiency. When the activated carbon adsorption plate 49 and filter plate 400 need to be replaced, the rocker arm 56 is turned, causing the two sets of synchronous pulleys 53 to rotate synchronously via the synchronous belt. At this time, the inner wall of the contact groove 57 abuts against the surface of the movable rod 59, which synchronously drives the round block 54, rotating rod 55, and screw 50 to rotate. At this time, the connecting block 51 and baffle 52 move upward synchronously, and the through hole of one set of baffles 52 connects with the other set of three-way valves. Pipe 44, air inlet 404, and three-way pipe 402 are aligned. Another set of baffles 52 blocks another set of three-way pipes 44, air inlet 404, and three-way pipe 402, allowing external air and hot air from inside the housing 1 to enter the activated carbon adsorption plate 49 and filter plate 400 on the other side of the partition 47 for filtration. To prevent the two sets of connecting blocks 51 and baffles 52 from not moving synchronously, when one set of baffles 52 can no longer move, one set of screws 50 can no longer rotate, and the surface of the movable rod 59 continuously contacts the inner wall of the contact groove 57. This causes the movable rod 59 to enter the slide groove 58, compressing the spring 500. When the movable rod 59 is parallel to the contact groove 57, the spring 500 releases, causing the movable rod 59 to re-enter the contact groove 57. This does not affect the normal rotation of the synchronous wheel 53, allowing the other set of synchronous wheels 53 to continue driving the other set of screws 50 to rotate until both sets of baffles 52 can no longer move. At this point, the sealing door 46 of the corresponding filter plate 400 and activated carbon adsorption plate 49 that need to be replaced can be opened, and they can be pulled out for replacement without stopping the drying process, thus improving work efficiency.

[0023] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A water-removable polyurethane resin circulating air box, comprising a box body (1), characterized in that: The surface of the housing (1) is provided with a circulation component (4) and a replacement component (5). The circulation component (4) includes: a filter box (45) and a partition (47). The replacement component (5) includes: The screw (50) is used to drive the connecting block (51) and the baffle (52) to move synchronously. Baffle (52) is used to prevent gas from entering; Synchronous pulley (53) is used to synchronously drive the screw (50) to rotate.

2. The water-removable polyurethane resin circulating air box according to claim 1, characterized in that: The screw (50) is rotatably connected to the inner wall of the filter box (45). The screw (50) passes through the partition (47) and is rotatably connected to the partition (47). The screw (50) passes through and is threadedly connected to a connecting block (51). A baffle (52) is fixed at one end of the connecting block (51) away from the center of the filter box (45). The side of the baffle (52) away from the connecting block (51) is slidably connected to the inner wall of the filter box (45). A synchronous wheel (53) is rotatably connected to the top of the filter box (45). A round block (54) is rotatably connected to the top of the filter box (45). A rotating rod (55) is fixed at the bottom of the round block (54). The bottom of the rotating rod (55) passes through the filter box (45). The rotating rod (55) is fixed to the top of the screw (50). The outer surface of the round block (54) is rotatably connected to the inner side of the synchronous wheel (53). The synchronous wheel (53) is provided in two sets. A rocker arm (56) is fixed to the top of one of the sets of synchronous wheels (53). An abutment groove (57) is opened on the inner side of the synchronous wheel (53). A sliding groove (58) is opened on the outer surface of the round block (54). A movable rod (59) is slidably connected to the inner wall of the sliding groove (58). A spring (500) is fixed to one end of the movable rod (59) near the sliding groove (58). The end of the spring (500) away from the movable rod (59) is fixed to the inner wall of the sliding groove (58). A synchronous belt is connected to the surface of the synchronous wheel (53).

3. The water-removable polyurethane resin circulating air box according to claim 1, characterized in that: The circulation component (4) includes a connecting cover one (40), which is fixed to the right side of the housing (1). A connecting cover two (41) is fixed to the left side of the housing (1). Air vents are provided on both the left and right sides of the housing (1). A suction fan (42) is fixed to the left side of the connecting cover two (41). The output end of the suction fan (42) is connected to the connecting cover two (41). A connecting pipe (43) is fixed to the output end of the suction fan (42). A three-way pipe one (44) is fixed to the end of the connecting pipe (43) away from the suction fan (42). A filter box (45) is installed at the end of the three-way pipe one (44) away from the connecting pipe (43). An air inlet (404) is provided on the left side of the filter box (45). The filter box (45) is fixed with a partition (47) on its inner wall. The filter box (45) and the partition (47) are fixed with a stabilizing frame (48) on their inner walls and surfaces. An activated carbon adsorption plate (49) and a filter plate (400) are inserted into the inner side of the stabilizing frame (48). A hot air blower (403) is installed on the top of the box body (1). A three-way pipe (402) is fixed at the input end of the hot air blower (403). The end of the three-way pipe (402) away from the hot air blower (403) is connected to the right side of the filter box (45). The output end of the hot air blower (403) is connected to the top of the connecting cover (40). A sealing door (46) is installed on the outer surface of the filter box (45). A heating rod (401) is installed on the inner wall of the filter box (45).

4. The water-removable polyurethane resin circulating air box according to claim 2, characterized in that: The baffle (52) and connecting block (51) are provided in four sets, and the four sets of baffle (52) and connecting block (51) are arranged in two groups with the center line of the filter box (45) as the axis of symmetry. Two sets of through holes are opened on the surface of one set of baffle (52), and one set of through holes is opened on the other set of baffle (52).

5. A water-removable polyurethane resin circulating air box according to claim 2, characterized in that: The end of the movable rod (59) away from the spring (500) is set in an arc shape.

6. The water-removable polyurethane resin circulating air box according to claim 1, characterized in that: The inner wall of the box (1) is fixed with a bottom plate (2), and a placement plate (3) is placed on the top of the bottom plate (2). The surface of the placement plate (3) is provided with ventilation holes.

7. A water-removable polyurethane resin circulating air box according to claim 3, characterized in that: There are four activated carbon adsorption plates (49) and four filter plates (400). The four activated carbon adsorption plates (49) and four filter plates (400) are divided into two groups and are symmetrically arranged with the center line of the filter box (45) as the axis of symmetry. There are two groups of sealing doors (46).

Images