Quick-drying type polyurethane foam joint mixture raw material drying device

Abstract

The utility model is applicable to the technical field of foam joint mixture processing, and provides a quick-drying type polyurethane foam joint mixture raw material drying device which comprises a drying kettle body, a motor is arranged on the drying kettle body, the lower end of an output shaft of the motor is fixedly connected with a main shaft, and the lower end of the main shaft rotatably penetrates into the drying kettle body. A plurality of stirring rods are fixedly connected to the outer surface, located in the drying kettle body, of the main shaft, the outer surface of the end, located outside the drying kettle body, of the main shaft is rotationally sleeved with a lantern ring, the outer surface of the lantern ring is fixedly connected with an air conveying pipe, the other end of the air conveying pipe is connected with a hot air conveying pump, the interior of the main shaft is hollow, and a groove is formed in the inner ring of the lantern ring; the device can heat and dry the middle positions of the polyurethane foam joint mixture raw material particles, the problem that the drying effect of the middle positions of the polyurethane foam joint mixture particles is poor is avoided as much as possible, the drying effect of the polyurethane foam joint mixture raw material particles is further guaranteed, and the drying speed of the polyurethane foam joint mixture raw material is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of foam sealant processing, and more specifically to a quick-drying polyurethane foam sealant raw material drying device. Background Art

[0002] Polyurethane foam sealant is a special polyurethane product that is made by loading polyurethane prepolymer, foaming agent, catalyst and other components into a pressure-resistant aerosol can. During construction, the aerosol colloid is sprayed to the construction site through a matching sizing gun or manual nozzle. The polyurethane material quickly foams and expands and reacts with moisture in the air or on the substrate to form foam, and completes the molding, foaming, bonding and sealing processes in a relatively short time. Therefore, it is widely used in the field of decoration.

[0003] In the existing production process of polyurethane foam sealant, granular raw materials, such as polyether particles, are required. However, these granular raw materials will inevitably absorb moisture in the air during storage. In order to ensure the production effect of polyurethane foam sealant, these granular raw materials need to be dried. Most of the existing methods for processing polyurethane foam sealant granular raw materials generally adopt the method of drying in a drying kettle. However, the existing drying kettle heating source is generally arranged in the inner wall of the drying kettle body, which causes heat to be conducted from the outside to the inside. However, the polyurethane foam sealant granular raw materials are generally piled up in one piece when poured into the drying kettle. In this way, when the polyurethane foam sealant granular raw materials are dried, the heating effect in the middle position is not ideal, resulting in a poor drying effect of the polyurethane foam sealant granular raw materials, and it takes more time to dry the polyurethane foam sealant granular raw materials. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a quick-drying polyurethane foam sealant raw material drying device which can heat and dry the middle position of polyurethane foam sealant raw material particles.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A drying device for the raw materials of a quick-drying polyurethane foam sealant, comprising a drying kettle body. A motor is provided on the drying kettle body. The lower end of the output shaft of the motor is fixedly connected to a main shaft. The lower end of the main shaft rotates through the drying kettle body. A plurality of stirring rods are fixedly connected to the outer surface of the main shaft inside the drying kettle body. A collar is rotatably sleeved on the outer surface of one end of the main shaft outside the drying kettle body. An air delivery pipe is fixedly connected to the outer surface of the collar. The other end of the air delivery pipe is connected to a hot air delivery pump. The inside of the main shaft is hollow. A groove is formed in the inner ring of the collar. The air delivery pipe penetrates into the groove. A plurality of air inlet holes are formed in the outer surface of the main shaft near the groove. The air inlet holes are communicated with the inside of the main shaft and the groove. The inside of the stirring rod is also hollow and is communicated with the main shaft. A plurality of air outlet holes are formed on the outer surfaces of the two opposite sides of the stirring rod. The air outlet holes are communicated with the inside of the stirring rod.

[0007] The utility model is further arranged as follows: Heating rods are embedded in the inner wall of the drying kettle body.

[0008] The utility model is further arranged as follows: A square rod is arranged inside the stirring rod. One end of the square rod slides through the outer surface of the stirring rod. A U-shaped plate is fixedly connected to the end of the square rod outside the stirring rod. At the same time, the two cross plates of the U-shaped plate are arranged on the upper and lower sides of the stirring rod. A plurality of stirring support rods are fixedly connected to the opposite side surfaces of the two cross plates of the U-shaped plate.

[0009] The utility model is further arranged as follows: A baffle is fixedly connected to the end of the square rod inside the stirring rod. A tension spring is fixedly connected between the baffle and the inner wall of the stirring rod. The tension spring is movably sleeved on the square rod.

[0010] The utility model is further arranged as follows: A contact rod is fixedly connected to the side surface of the vertical plate of the U-shaped plate facing away from the square rod. A plurality of convex blocks are fixedly connected to the inner wall of the drying kettle body. The other end of the contact rod contacts the outer surface of the convex block.

[0011] The utility model is further arranged as follows: The other end of the contact rod is hemispherical. The convex block is also hemispherical and is in the same horizontal position as the stirring rod.

[0012] The advantages of the utility model are as follows:

[0013] 1. The device can heat and dry the middle position of the polyurethane foam sealant raw material particles,尽量避免了聚氨酯泡沫填缝剂颗粒中间位置干燥效果不好的问题,进一步保障了聚氨酯泡沫填缝剂原料颗粒的干燥效果,加快了对聚氨酯泡沫填缝剂原料的干燥速度;(This sentence seems to have some incorrect or incomplete Chinese text. It should be something like "This device can heat and dry the middle position of the polyurethane foam sealant raw material particles, minimizing the problem of poor drying effect in the middle position of the polyurethane foam sealant particles, further ensuring the drying effect of the polyurethane foam sealant raw material particles, and accelerating the drying speed of the polyurethane foam sealant raw material.")

[0014] 2. The device can drive the stirring support rods to reciprocate back and forth, further increasing the stirring range of the stirring support rods, and further improving the drying effect and efficiency of the polyurethane foam sealant raw materials. Description of the Drawings

[0015] Figure 1 This is a schematic structural diagram of a quick-drying polyurethane foam sealant raw material drying device of the utility model;

[0016] Figure 2 It is a cross-sectional schematic diagram of the drying kettle body of the utility model;

[0017] Figure 3 This is a schematic cross-sectional view of the top of the main shaft of the utility model;

[0018] Figure 4 for Figure 2 Enlarged view of point A in the middle;

[0019] Figure 5 It is a cross-sectional schematic diagram of the stirring rod of the utility model;

[0020] In the figure: 1. Drying kettle body; 2. Motor; 3. Main shaft; 4. Stirring rod; 5. Ring; 6. Air pipe; 7. Groove; 8. Air inlet; 9. Air outlet; 10. Square rod; 11. Shaped plate; 12. Stirring support rod; 13. Baffle; 14. Tension spring; 15. Contact rod; 16. Bump; 17. Heating rod. DETAILED DESCRIPTION

[0021] See also Figure 1-5 , the utility model provides the following technical solutions:

[0022] Specifically, it refers to a quick-drying polyurethane foam sealant raw material drying device, including a drying kettle body 1, a motor 2 is arranged on the drying kettle body 1, the motor 2 is fixedly installed on the drying kettle body 1 through a motor bracket, the output shaft of the motor 2 is arranged downward, the lower end of the output shaft of the motor 2 is fixedly connected with a main shaft 3, the lower end of the main shaft 3 rotates and penetrates into the drying kettle body 1, the outer surface of the main shaft 3 located in the drying kettle body 1 is fixedly connected with a plurality of stirring rods 4, and the plurality of stirring rods 4 are symmetrically installed on the outer surface of the main shaft 3 in a group of two, and the inner wall of the drying kettle body 1 is inlaid with a plurality of heating rods 17, and the heating rods 17 are existing known technologies and will not be described in detail here;

[0023] Specifically, a sleeve 5 is rotatably sleeved on the outer surface of one end of the main shaft 3 located outside the drying kettle body 1, and an air pipe 6 is fixedly connected to the outer surface of the sleeve 5. The other end of the air pipe 6 is connected to a hot air delivery pump. The interior of the main shaft 3 is hollow, and a groove 7 is provided on the inner ring of the sleeve 5. The air pipe 6 runs through the groove 7. A plurality of air inlet holes 8 are provided on the outer surface of the main shaft 3 near the groove 7. The air inlet holes 8 are connected to the interior of the main shaft 3 and the groove 7. The interior of the stirring rod 4 is also hollow and connected to the main shaft 3. A plurality of air outlet holes 9 are provided on the outer surfaces of the opposite sides of the stirring rod 4, and the air outlet holes 9 are connected to the interior of the stirring rod 4.

[0024] Therefore, preheat through the heating rod 17, and add polyurethane foam sealant particle raw materials (such as polyether particles) into the drying kettle body 1. Start the motor 2, which drives the main shaft 3 to rotate. In this way, the stirring rod 4 can stir the polyurethane foam sealant particle raw materials in the drying kettle body 1. At the same time, the heating rod 17 raises the temperature, so as to achieve the purpose of drying the polyurethane foam sealant particle raw materials. When the stirring rod 4 stirs the polyurethane foam sealant raw material particles, the hot air delivery pump starts and conveys hot air to the air delivery pipe 6. These hot airs can enter the main shaft 3 along the air inlet holes 8, making the inside of the main shaft 3 full of hot air and entering the stirring rod 4. Therefore, these hot airs can be discharged to the inside of the polyurethane foam sealant raw material particles through the air outlet holes 9, so as to heat and dry the middle position of the polyurethane foam sealant raw material particles,尽量避免了聚氨酯泡沫填缝剂颗粒中间位置干燥效果不好的问题,进一步保障了聚氨酯泡沫填缝剂原料颗粒的干燥效果,加快了对聚氨酯泡沫填缝剂原料的干燥速度。

[0025] In this embodiment, the diameter of the air outlet hole 9 is smaller than the diameter of the polyurethane foam sealant raw material particles, so as to prevent the polyurethane foam sealant raw material particles from entering the air outlet hole 9.

[0026] Specifically, a square rod 10 is arranged inside the stirring rod 4. One end of the square rod 10 slides through the outer surface of the stirring rod 4. The end of the square rod 10 outside the stirring rod 4 is fixedly connected with an L-shaped plate 11. At the same time, the two horizontal plates of the L-shaped plate 11 are arranged on the upper and lower sides of the stirring rod 4. A number of stirring support rods 12 are fixedly connected to the opposite side surfaces of the two horizontal plates of the L-shaped plate 11. In this way, when the stirring rod 4 rotates, the stirring support rods 12 can improve the stirring effect on the polyurethane foam sealant raw materials. The end of the square rod 10 inside the stirring rod 4 is fixedly connected with a baffle 13. A tension spring 14 is fixedly connected between the baffle 13 and the inner wall of the stirring rod 4. The tension spring 14 is movably sleeved on the square rod 10. When the tension spring 14 is not affected by the pulling force, the tension spring 14 will form a pulling force on the baffle 13, so that the initial position of the baffle 13 is on the side away from the main shaft 3. In this way, the vertical plate of the L-shaped plate 11 is on the side away from the stirring rod 4.

[0027] Specifically, a contact rod 15 is fixedly connected to the surface of the vertical plate of the L-shaped plate 11 opposite to the square rod 10. The other end of the contact rod 15 is hemispherical. A number of convex blocks 16 are fixedly connected to the inner wall of the drying kettle body 1. The convex blocks 16 are also hemispherical and are at the same horizontal position as the stirring rod 4. The other end of the contact rod 15 contacts the outer surface of the convex block 16;

[0028] When the stirring rod 4 rotates, it can drive the contact rod 15 to rotate inside the drying kettle body 1. When the contact rod 15 contacts the outer surface of the convex block 16, the arc surface of the convex block 16 will exert pressure on the contact rod 15, causing the contact rod 15 to displace towards one side of the stirring rod 4, and simultaneously pushing the C-shaped plate 11 to displace. At the same time, the square rod 10 displaces into the stirring rod 4, and the tension spring 14 is stretched under force. When the contact rod 15 does not contact the convex block 16, the C-shaped plate 11 will displace to the initial position under the pull of the tension spring 14. With the above structure, the stirring support rod 12 can be driven to displace back and forth, further increasing the stirring range of the stirring support rod 12, and further improving the drying effect and efficiency of the polyurethane foam sealant raw material.

[0029] The working principle of the quick-drying polyurethane foam sealant raw material drying device provided by the present utility model is as follows: Preheat through the heating rod 17, and add polyurethane foam sealant granular raw materials (such as polyether granules) into the drying kettle body 1. Start the motor 2, which drives the main shaft 3 to rotate. In this way, the stirring rod 4 can stir the polyurethane foam sealant granular raw materials in the drying kettle body 1, and at the same time, the heating rod 17 increases the temperature.

[0030] When the stirring rod 4 rotates, it can drive the contact rod 15 to rotate inside the drying kettle body 1. When the contact rod 15 contacts the outer surface of the convex block 16, the arc surface of the convex block 16 will exert pressure on the contact rod 15, causing the contact rod 15 to displace towards one side of the stirring rod 4, and simultaneously pushing the C-shaped plate 11 to displace. At the same time, the square rod 10 displaces into the stirring rod 4, and the tension spring 14 is stretched under force. When the contact rod 15 does not contact the convex block 16, the C-shaped plate 11 will displace to the initial position under the pull of the tension spring 14.

Claims

1. A quick-drying polyurethane foam sealant raw material drying device, comprising a drying kettle (1), a motor (2) is provided on the drying kettle (1), a main shaft (3) is fixedly connected to the lower end of the output shaft of the motor (2), the lower end of the main shaft (3) rotates and penetrates into the drying kettle (1), and a plurality of stirring rods (4) are fixedly connected to the outer surface of the main shaft (3) located in the drying kettle (1), characterized in that: One end of the main shaft (3) located outside the drying kettle body (1) is rotatably sleeved with a collar (5). The outer surface of the collar (5) is fixedly connected with an air delivery pipe (6). The other end of the air delivery pipe (6) is connected with a hot air delivery pump. The inside of the main shaft (3) is hollow. A groove (7) is formed in the inner ring of the collar (5). The air delivery pipe (6) penetrates into the groove (7). A plurality of air inlet holes (8) are formed in the outer surface of the main shaft (3) close to the groove (7). The air inlet holes (8) are communicated with the inside of the main shaft (3) and the groove (7). The inside of the stirring rod (4) is also hollow and is communicated with the main shaft (3). A plurality of air outlet holes (9) are formed in the outer surfaces of the two opposite sides of the stirring rod (4). The air outlet holes (9) are communicated with the inside of the stirring rod (4).

2. A quick-drying polyurethane foam sealant raw material drying device according to claim 1, characterized in that: Heating rods (17) are inlaid on the inner wall of the drying kettle body (1).

3. A quick-drying polyurethane foam sealant raw material drying device according to claim 1, characterized in that: A square rod (10) is arranged inside the stirring rod (4). One end of the square rod (10) slidably penetrates out of the outer surface of the stirring rod (4). One end of the square rod (10) located outside the stirring rod (4) is fixedly connected with an L-shaped plate (11). At the same time, the two horizontal plates of the L-shaped plate (11) are arranged on the upper and lower sides of the stirring rod (4). A plurality of stirring support rods (12) are fixedly connected to the surfaces of the two opposite sides of the two horizontal plates of the L-shaped plate (11).

4. A quick-drying polyurethane foam sealant raw material drying device according to claim 3, characterized in that: One end of the square rod (10) located inside the stirring rod (4) is fixedly connected with a baffle plate (13). A tension spring (14) is fixedly connected between the baffle plate (13) and the inner wall of the stirring rod (4). The tension spring (14) is movably sleeved on the square rod (10).

5. The quick-drying polyurethane foam sealant raw material drying device according to claim 3, characterized in that: A contact rod (15) is fixedly connected to the surface of the vertical plate of the L-shaped plate (11) facing away from the square rod (10). A plurality of convex blocks (16) are fixedly connected to the inner wall of the drying kettle body (1). The other end of the contact rod (15) contacts the outer surface of the convex block (16).

6. A quick-drying polyurethane foam sealant raw material drying device according to claim 5, characterized in that: The other end of the contact rod (15) is hemispherical. The convex block (16) is also hemispherical and is in the same horizontal position as the stirring rod (4).

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