Flame-retardant low-odor hot melt adhesive production cooling device

Abstract

The utility model relates to hot melt adhesive production cooling device technical field provides a kind of cooling device for flame-retardant low odor hot melt adhesive production, including box, the edge position of box bottom end is all fixed with support leg, the side of box is provided with feed inlet, the side of box is provided with discharge port, the inside of box is installed with air cooling structure, water cooling structure is installed in the middle position of the inside of box.The utility model is provided with water cooling structure, the water cooling structure includes the first cooling roller of installation in the middle position of the inside of box, the second cooling roller is installed in the just below of first cooling roller, the inside of first cooling roller and second cooling roller is all fixed with helical vane, first cooling roller and second cooling roller are directly contacted with hot melt adhesive by the cooling water circulating in the inside and heat transfer, and helical vane prolongs the flow path of cooling water in roller body, and greatly improves heat exchange efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of cooling devices for hot melt adhesive production, and in particular to a cooling device for flame-retardant, low-odor hot melt adhesive production. Background Technology

[0002] After hot melt adhesive is melted, mixed, and extruded, it needs to be cooled to solidify from a high-temperature molten state into a finished product with a stable shape. The efficiency and effectiveness of the cooling process directly affect product quality, production cycle, and production cost.

[0003] To address this issue, patent CN213732922U discloses a cooling device for hot melt adhesive production. The proposed solution addresses the problem of uneven cooling of hot melt pressure-sensitive adhesive rods. The device includes a housing with a rotating disk mounted on the inner wall of its bottom bearing. A servo motor is bolted to the inner wall of the side of the housing, with a reducer installed on one output shaft and a transmission belt fitted onto the outer wall of the other output shaft. An air duct is embedded in the top of the housing, with a support shaft fixedly connected inside. A cooling chamber is fixedly installed on the upper surface of the top of the housing. This invention facilitates uniform cooling of the hot melt pressure-sensitive adhesive rods, preventing cracking due to uneven cooling. Furthermore, the device allows for easy recovery of heat resources, enhancing its practicality and maintaining its environmental friendliness.

[0004] The aforementioned cooling device for hot melt adhesive production mainly relies on air ducts to introduce cooling air and cooling chambers for cooling during use. Its air-cooled structure only delivers cold air through the air ducts embedded at the top, resulting in a limited coverage area for the cooling air and a tendency for uneven cooling in certain areas. Utility Model Content

[0005] The purpose of this invention is to provide a flame-retardant, low-odor hot melt adhesive production cooling device to solve the problem of uneven cooling in existing hot melt adhesive production cooling devices.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a cooling device for the production of flame-retardant, low-odor hot melt adhesive, including a housing;

[0007] Support legs are fixed at the bottom edge of the box. A feed inlet is provided on one side of the box and a discharge outlet is provided on the other side of the box. An air-cooling structure is installed inside the box.

[0008] A water-cooling structure is installed in the middle of the interior of the box. The water-cooling structure includes a first cooling roller installed in the middle of the interior of the box, and a second cooling roller installed directly below the first cooling roller. Both the first and second cooling rollers have helical blades fixed inside. Both ends of the first and second cooling rollers are fixed with fixing blocks. One end of each fixing block is fixed with a connecting pipe. Rotating rings are fixed to the outside of the connecting pipes on both sides of the box. The rotating rings have rotating grooves inside. A first annular block is installed inside the rotating groove on one side of the box, and a second annular block is installed inside the rotating groove on the other side of the box. One end of the second annular block is fixed with a water inlet pipe, and one end of the first annular block is fixed with a water outlet pipe.

[0009] Preferably, the air-cooled structure includes a first roller shaft installed on one side of the inside of the housing, and a second roller shaft installed on the other side of the inside of the housing. A first geared motor is fixed to one end of the first roller shaft on one side of the housing, and a second geared motor is fixed to one end of the second roller shaft on one side of the housing. A feeding belt is installed on the outside of the first roller shaft inside the housing, and a discharging belt is installed on the outside of the second roller shaft inside the housing. An air-cooled box is fixed to the inside of the housing inside the feeding belt and the discharging belt. An air outlet pipe is fixed to the top of the air-cooled box, and an air supply pipe is fixed to one end of the air-cooled box. A cooler is installed at the top of the housing, and heat dissipation windows are provided on both sides of the top of the housing.

[0010] Preferably, the first rollers are symmetrically distributed on one side of the box body, the second rollers are symmetrically distributed on the other side of the box body, and the feed belt and discharge belt are uniformly provided with through holes inside.

[0011] With the above structure, the uniformly arranged through holes inside the feed belt and discharge belt provide a channel for the airflow circulation of the air-cooling system during use, avoiding the obstruction of cold air by the conveyor belt, and making the contact area between the cold air and the hot melt adhesive sheet larger and more sufficient, which significantly improves the heat exchange efficiency of air cooling.

[0012] Preferably, the air outlet ducts are evenly spaced at the top of the air-cooled box, one end of each air supply duct passes through one side of the box and is fixedly connected to both sides of the air cooler, and the heat dissipation windows are symmetrically distributed at the top of the box.

[0013] With the above structure, the air outlet ducts are evenly spaced at the top of the air-cooled box during use, which can evenly distribute the cool air inside the box and blow it onto the surface of the hot melt adhesive sheet, ensuring that the airflow intensity is consistent throughout the hot melt adhesive sheet, thereby achieving uniform cooling. The heat dissipation windows are symmetrically distributed at the top of the box, forming an efficient air convection channel. After the cool air blows onto the hot melt adhesive sheet and carries away the heat, the hot air inside the box will naturally rise and be quickly exhausted to the outside of the box through the symmetrically distributed heat dissipation windows.

[0014] Preferably, a water tank is fixed to the bottom of the box body, a water pump is fixed to one end of the water inlet pipe on one side of the water tank, a water pump is fixed to one end of the water pump, a water supply pipe is fixed to one side of the bottom of the water tank, a cooler is installed inside the water tank, a first gear is fixed to the outside of the connecting pipe at one end of the first cooling roller, a second gear is fixed to the outside of the connecting pipe at one end of the second cooling roller, a third gear is installed on one side of the second gear, and a drive motor is fixed to one end of the third gear.

[0015] Preferably, one end of the connecting pipe extends through both sides of the box to the outside of the box, the cross-section of the rotating groove is T-shaped, the first annular block and the second annular block are rotatably connected to the rotating ring through the rotating groove, and the inlet pipe and the outlet pipe are both T-shaped pipes.

[0016] With the above structure, the rotating groove is set in a "T" shape during use. Combined with the rotational connection between the first annular block, the second annular block and the rotating ring, a highly efficient dynamic sealing structure is formed, so as not to affect the free rotation of the cooling roller.

[0017] Preferably, one end of the water suction pipe extends through one side of the tank body into the interior of the tank body, and one end of the water outlet pipe extends through the other side of the tank body into the interior of the tank body. The first gear and the second gear are meshed together, and the second gear and the third gear are meshed together.

[0018] With the above structure, when in use, one end of the water outlet pipe extends through the other side of the box and into the interior, so that the hot water that has completed heat exchange in the cooling roller is exported from the inside of the box and flows back to the water tank, which makes it easy for the chiller to centrally cool the returned hot water and make the water resources recycled.

[0019] The present invention provides a cooling device for the production of flame-retardant, low-odor hot melt adhesive, the advantages of which are:

[0020] With an air-cooling structure, the cold air generated by the air cooler is delivered to the air-cooling box through the air duct, and then blown evenly onto the surface of the hot melt adhesive sheet on the feed belt and the discharge belt through the equally spaced air outlet pipes, so that the surface heat can be quickly removed by the air flow.

[0021] With a water-cooling structure, the first and second cooling rollers directly contact the hot melt adhesive for heat transfer through internally circulating cooling water. The spiral blades extend the flow path of the cooling water within the roller body, significantly improving heat exchange efficiency. Attached Figure Description

[0022] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0023] Figure 2 This is a three-dimensional top-view cross-sectional diagram of the present invention;

[0024] Figure 3 This is a three-dimensional frontal cross-sectional view of the present invention;

[0025] Figure 4 This is a three-dimensional side sectional view of the present invention;

[0026] Figure 5 This is a three-dimensional exploded view of the water-cooling structure of this utility model.

[0027] The following are the annotations in the diagram: 1. Housing; 2. Support leg; 3. Feed inlet; 4. Discharge outlet; 5. Air-cooled structure; 501. First roller; 502. Second roller; 503. First geared motor; 504. Second geared motor; 505. Feed belt; 506. Discharge belt; 507. Air-cooled box; 508. Air outlet duct; 509. Air conveyor duct; 510. Air cooler; 511. Heat dissipation window; 6. Water-cooled structure; 601. First cooling roller; 602. Second cooling roller; 603, spiral blade; 604, fixed block; 605, connecting pipe; 606, rotating ring; 607, rotating groove; 608, first annular block; 609, second annular block; 610, water inlet pipe; 611, water outlet pipe; 612, water tank; 613, water pump; 614, water suction pipe; 615, water supply pipe; 616, refrigerator; 617, first gear; 618, second gear; 619, third gear; 620, drive motor. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figures 1-5 The present invention provides a cooling device for the production of flame-retardant, low-odor hot melt adhesive, comprising a housing 1.

[0030] Reference Figures 1-4As shown, support legs 2 are fixed at the bottom edge of the box 1. A feed inlet 3 is provided on one side of the box 1, and a discharge outlet 4 is provided on the other side. An air-cooling structure 5 is installed inside the box 1. The air-cooling structure 5 includes a first roller 501 installed on one side of the box 1, and a second roller 502 installed on the other side of the box 1. A first reduction motor 503 is fixed to one end of the first roller 501 on one side of the box 1, and a second reduction motor 504 is fixed to one end of the second roller 502 on one side of the box 1. A feed belt 505 is installed on the outside of the first roller 501 inside the box 1, and a discharge belt 506 is installed on the outside of the second roller 502 inside the box 1. The feed belt 505 and the discharge belt 506 are internally connected. An air-cooled box 507 is fixed inside the housing 1. An air outlet pipe 508 is fixed to the top of the air-cooled box 507. An air supply pipe 509 is fixed to one end of the air-cooled box 507. A cooler 510 is installed on the top of the housing 1. Heat dissipation windows 511 are provided on both sides of the top of the housing 1. The first roller 501 is symmetrically distributed on one side inside the housing 1. The second roller 502 is symmetrically distributed on the other side inside the housing 1. Through holes are evenly provided inside the feed belt 505 and the discharge belt 506. The air outlet pipe 508 is evenly distributed at the top of the air-cooled box 507. One end of the air supply pipe 509 passes through one side of the housing 1 and is fixedly connected to both sides of the cooler 510. The heat dissipation windows 511 are symmetrically distributed on the top of the housing 1.

[0031] The first roller 501 is driven to rotate by the first geared motor 503, which in turn causes the feed belt 505 to rotate, conveying the hot melt adhesive sheet entering from the feed port 3 to the cooling area. Meanwhile, the second roller 502 on the other side is driven to rotate by the second geared motor 504, which in turn causes the discharge belt 506 to rotate, conveying the cooled hot melt adhesive sheet to the discharge port 4 for discharge. While the feed belt 505 and the discharge belt 506 are conveying the hot melt adhesive sheet, the air cooler 510 at the top of the box 1 generates cold air, which is delivered to the air-cooled box 507 through the air duct 509. The cold air is then evenly blown onto the surface of the hot melt adhesive sheet on the conveyor belt through the equally spaced air outlet pipes 508, using air flow to remove the heat from the hot melt adhesive sheet. The hot air inside the box is also discharged through the heat dissipation windows 511 symmetrically distributed on both sides of the top of the box 1, forming an air circulation and enhancing the air cooling effect.

[0032] Reference Figures 1-5As shown, a water-cooling structure 6 is installed in the middle of the interior of the housing 1. The water-cooling structure 6 includes a first cooling roller 601 installed in the middle of the interior of the housing 1, and a second cooling roller 602 installed directly below the first cooling roller 601. Spiral blades 603 are fixed inside both the first cooling roller 601 and the second cooling roller 602. Fixing blocks 604 are fixed at both ends of the first cooling roller 601 and the second cooling roller 602. A connecting pipe 605 is fixed at one end of each fixing block 604. The outer sides of the connecting pipes 605 on both sides of the housing 1 are fixed... A rotating ring 606 is fixed, and a rotating groove 607 is provided inside the rotating ring 606. A first annular block 608 is installed inside the rotating groove 607 on one side of the housing 1, and a second annular block 609 is installed inside the rotating groove 607 on the other side of the housing 1. A water inlet pipe 610 is fixed to one end of the second annular block 609, and a water outlet pipe 611 is fixed to one end of the first annular block 608. A water tank 612 is fixed to the bottom of the housing 1. A water pump 613 is fixed to one end of the water inlet pipe 610 on one side of the water tank 612, and a pump is fixed to one end of the water pump 613. A water pipe 614 is attached to one side of the bottom of a water tank 612, and a water supply pipe 615 is fixed thereto. A cooler 616 is installed inside the water tank 612. A first gear 617 is fixed to the outside of a connecting pipe 605 at one end of a first cooling roller 601. A second gear 618 is fixed to the outside of a connecting pipe 605 at one end of a second cooling roller 602. A third gear 619 is installed on one side of the second gear 618. A drive motor 620 is fixed to one end of the third gear 619. One end of the connecting pipe 605 extends through both sides of the housing 1 to the outside of the housing 1. The rotating groove 607 has a "T" shaped cross section. The first annular block 608 and the second annular block 609 are rotatably connected to the rotating ring 606 through the rotating groove 607. The inlet pipe 610 and the outlet pipe 611 are both T-shaped pipes. One end of the pumping pipe 614 extends through one side of the box body 1 into the interior of the box body 1, and one end of the outlet pipe 611 extends through the other side of the box body 1 into the interior of the box body 1. The first gear 617 is meshed with the second gear 618, and the second gear 618 is meshed with the third gear 619.

[0033] Cooling water is stored in the water tank 612 at the bottom of the housing 1. The chiller 616 continuously cools the water in the water tank 612. The water pump 613 is started to draw cold water from the water tank 612 through the water pipe 614. The cold water is then transported through the inlet pipe 610 and the connecting pipe 605 to the interior of the first cooling roller 601 and the second cooling roller 602. The spiral blades 603 inside the first cooling roller 601 and the second cooling roller 602 extend the flow path of the cooling water in the roller body, improve the heat exchange efficiency, and transfer heat through the contact between the roller body and the hot melt adhesive. The cooled water, after being heated, flows out through the outlet pipe. 611 flows back to water tank 612, forming a closed-loop water circulation. The start-up drive motor 620 drives the third gear 619 to rotate, which in turn drives the second gear 618 and the first gear 617 to rotate, thereby driving the first cooling roller 601 and the second cooling roller 602 to rotate synchronously in opposite directions. The "T"-shaped rotating groove 607 inside the rotating ring 606 forms a rotating connection with the first annular block 608 and the second annular block 609. While ensuring the free rotation of the roller body, it prevents the cooling water from leaking and ensures that the hot melt adhesive sheet is uniformly cooled and then conveyed to the discharge belt 506 for discharge.

[0034] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A cooling device for the production of flame-retardant, low-odor hot melt adhesive, comprising a housing (1); Its features are: The bottom edge of the box (1) is fixed with support legs (2), a feed inlet (3) is provided on one side of the box (1), a discharge outlet (4) is provided on the other side of the box (1), and an air-cooling structure (5) is installed inside the box (1). A water-cooling structure (6) is installed in the middle of the interior of the housing (1). The water-cooling structure (6) includes a first cooling roller (601) installed in the middle of the interior of the housing (1), and a second cooling roller (602) installed directly below the first cooling roller (601). Spiral blades (603) are fixed inside both the first cooling roller (601) and the second cooling roller (602). Fixing blocks (604) are fixed at both ends of the first cooling roller (601) and the second cooling roller (602). One end of each fixing block (604) is fixed. There is a connecting pipe (605). A rotating ring (606) is fixed on the outside of the connecting pipe (605) on both sides of the box (1). A rotating groove (607) is provided inside the rotating ring (606). A first annular block (608) is installed inside the rotating groove (607) on one side of the box (1). A second annular block (609) is installed inside the rotating groove (607) on the other side of the box (1). A water inlet pipe (610) is fixed at one end of the second annular block (609). A water outlet pipe (611) is fixed at one end of the first annular block (608).

2. The cooling device for producing flame-retardant, low-odor hot melt adhesive according to claim 1, characterized in that: The air-cooled structure (5) includes a first roller (501) installed on one side of the inside of the housing (1), and a second roller (502) installed on the other side of the inside of the housing (1). A first geared motor (503) is fixed to one end of the first roller (501) on one side of the housing (1), and a second geared motor (504) is fixed to one end of the second roller (502) on one side of the housing (1). A feed belt (505) is installed on the outside of the first roller (501) inside the housing (1). A discharge belt (506) is installed on the outside of the second roller (502) inside the box (1). An air-cooled box (507) is fixed inside the box (1) inside the feed belt (505) and the discharge belt (506). An air outlet pipe (508) is fixed at the top of the air-cooled box (507). An air supply pipe (509) is fixed at one end of the air-cooled box (507). A cold air fan (510) is installed at the top of the box (1). Heat dissipation windows (511) are provided on both sides of the top of the box (1).

3. A cooling device for producing flame-retardant, low-odor hot melt adhesive according to claim 2, characterized in that: The first roller (501) is symmetrically distributed on one side inside the housing (1), and the second roller (502) is symmetrically distributed on the other side inside the housing (1). The feed belt (505) and the discharge belt (506) are uniformly provided with through holes inside.

4. A cooling device for producing flame-retardant, low-odor hot melt adhesive according to claim 2, characterized in that: The air outlet pipes (508) are evenly spaced at the top of the air-cooled box (507), one end of the air supply pipes (509) passes through one side of the box (1) and is fixedly connected to both sides of the air cooler (510), and the heat dissipation windows (511) are symmetrically distributed at the top of the box (1).

5. A cooling device for producing flame-retardant, low-odor hot melt adhesive according to claim 1, characterized in that: A water tank (612) is fixed to the bottom of the box (1). A water pump (613) is fixed to one end of the water inlet pipe (610) on one side of the water tank (612). A water pump (614) is fixed to one end of the water pump (613). A water supply pipe (615) is fixed to one side of the bottom of the water tank (612). A cooler (616) is installed inside the water tank (612). A first gear (617) is fixed to the outside of the connecting pipe (605) at one end of the first cooling roller (601). A second gear (618) is fixed to the outside of the connecting pipe (605) at one end of the second cooling roller (602). A third gear (619) is installed on one side of the second gear (618). A drive motor (620) is fixed to one end of the third gear (619).

6. A cooling device for producing flame-retardant, low-odor hot melt adhesive according to claim 1, characterized in that: One end of the connecting pipe (605) extends through both sides of the box body (1) to the outside of the box body (1). The cross-section of the rotating groove (607) is T-shaped. The first annular block (608) and the second annular block (609) are rotatably connected to the rotating ring (606) through the rotating groove (607). The water inlet pipe (610) and the water outlet pipe (611) are both T-shaped pipes.

7. A cooling device for producing flame-retardant, low-odor hot melt adhesive according to claim 5, characterized in that: One end of the water pump (614) extends through one side of the housing (1) into the interior of the housing (1), and one end of the water outlet (611) extends through the other side of the housing (1) into the interior of the housing (1). The first gear (617) is meshed with the second gear (618), and the second gear (618) is meshed with the third gear (619).

Images