Polyurethane raw material heating and melting device

Abstract

The utility model provides a polyurethane raw material heating and melting device which comprises a water bath heating barrel, a material storage barrel is arranged in the water bath heating barrel, and a water injection opening and a water drainage opening are formed in the side wall of the water bath heating barrel. The top of the water bath heating barrel is fixedly connected with a crushing device for crushing the polyurethane raw materials through bolts, and a stirring rod for stirring the polyurethane raw materials is arranged in the storage barrel. By arranging the material crushing device, polyurethane raw materials can be crushed into finer particles before entering the material storage barrel, the heating time can be shortened, energy can be saved, by arranging the driving wheel, the driven wheel, the worm wheel and the worm, the first screw rod, the second screw rod and the stirring rod can be driven by the same servo motor together, and the stirring efficiency is improved. The operation efficiency is improved, and the energy consumption is reduced.

Description

Technical Field

[0001] The utility model relates to the field of polyurethane, in particular to a polyurethane raw material heating and melting device. Background Art

[0002] Polyurethane can be used to make plastics, rubber, fiber, hard and soft foam plastics, adhesives and coatings, etc. It can be used in various fields of people's lives and has a very wide range of applications. In the production process of polyurethane, the polyurethane raw materials need to be melted before the subsequent polyurethane production can be carried out. When the polyurethane raw materials are melted, most of the polyurethane raw materials are in a static state in the oven, which leads to uneven heating inside and outside the raw materials. For temperature-sensitive raw materials, it is easy to cause their performance to decline due to uneven heating.

[0003] In the related technology, a utility model patent with patent publication number CN212331513U was searched and proposed a device for heating and melting polyurethane raw materials, including a base, a heating tank was provided on the base, a cover was provided above the heating tank, a slide rail was provided at the bottom of the heating tank, a slide table was connected to the slide rail through a slider, one end of the slide table was connected to a spring 1, the other end of the spring 1 was connected to the inner wall of the heating tank, a cam was provided at the other end of the slide table, and the cam was driven by a motor.

[0004] Based on the above prior art, the inventor combined relevant technologies and found the following problems in practical applications:

[0005] 1. The large particles of polyurethane raw materials result in a long heating time, which wastes energy and reduces work efficiency.

[0006] 2. The polyurethane raw material in the center of the raw material barrel still cannot be heated, and there is still the problem of uneven heating of the raw material. Utility Model Content

[0007] In order to solve the problem in the prior art that the polyurethane raw material particles are large and need to be heated for a long time, and the polyurethane raw material at the center of the raw material barrel cannot be heated, resulting in uneven heating of the polyurethane raw material, the utility model provides a polyurethane raw material heating and melting device;

[0008] The utility model provides a polyurethane raw material heating and melting device adopts the following technical scheme:

[0009] A polyurethane raw material heating and melting device comprises a water bath heating barrel, a material storage barrel is arranged inside the water bath heating barrel, a water inlet and a water outlet are arranged on the side wall of the water bath heating barrel, a crushing device for crushing the polyurethane raw material is fixedly connected to the top of the water bath heating barrel by bolts, and a stirring rod for stirring the polyurethane raw material is arranged in the material storage barrel;

[0010] Furthermore, the crushing device includes a crushing barrel, a servo motor, a first screw and a second screw; a feed hopper is provided on the top wall of the crushing barrel, and a discharge pipe is provided on the bottom wall of the crushing barrel; the first screw and the second screw are rotatably connected inside the crushing barrel, a servo motor is fixedly connected to the side wall of the crushing barrel by bolts, an end of the first screw close to the feed hopper passes through the side wall of the crushing barrel and is connected to the output end of the servo motor through a coupling; a driving wheel is integrally formed at one end of the first screw close to the feed hopper, and a driven wheel is integrally formed at one end of the second screw close to the feed hopper, and the driving wheel and the driven wheel are meshed with each other to form a gear fit;

[0011] Furthermore, a stirring rod is rotatably connected to the top of the storage barrel through a bearing, a plurality of stirring branches are formed at one end of the stirring rod located inside the storage barrel, and a worm is welded at one end of the stirring rod located outside the storage barrel;

[0012] Furthermore, one end of the first screw rod near the discharge pipe passes through the side wall of the crushing barrel and extends outside the crushing barrel and is welded with a turbine, and the turbine rod can mesh with the worm rod at the end of the stirring rod to form a worm gear transmission;

[0013] Furthermore, a feed port is provided at the top of the storage barrel, and a discharge pipe at the bottom of the crushing barrel is welded to the upper part of the feed port; a discharge port is provided at the bottom of the storage barrel, and the discharge port passes through the bottom of the water bath heating barrel and extends outside the water bath heating barrel, and a valve is provided on the discharge port to seal it;

[0014] Furthermore, a controller for adjusting the water temperature in the water bath heating barrel is provided at the bottom of the water bath heating barrel, a heating pipe for heating the water in the water bath heating barrel is provided at the bottom of the inner wall of the water bath heating barrel, and the heating pipe is electrically connected to the controller;

[0015] Furthermore, a heat-insulating layer is provided on the inner side wall of the water bath heating barrel.

[0016] In summary, the beneficial effects of the utility model are:

[0017] The utility model provides a crushing device, so that the polyurethane raw material can be crushed into finer particles before entering the storage barrel, which can shorten the heating time and save energy; by providing a stirring rod and a stirring branch, the polyurethane raw material can be stirred during the water bath heating process, so that the raw material is heated evenly; by providing a driving wheel and a driven wheel, the first screw and the second screw can be rotated at the same time, ensuring that the rotation frequencies of the first screw and the second screw are consistent, thereby improving the crushing efficiency of the polyurethane raw material, and the first screw and the second screw can be driven together by a servo motor, thereby enhancing mechanical efficiency; by providing a turbine and a worm, the first screw, the second screw and the stirring rod can be driven together by the same servo motor, thereby greatly improving the operating efficiency and reducing energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the main view of the utility model;

[0019] Figure 2 This is a schematic diagram of the main cross-section of the utility model;

[0020] Figure 3 This is a cross-sectional schematic diagram of the material crushing device of the utility model;

[0021] Figure 4 It is a schematic diagram of the structure A of the utility model.

[0022] As shown in the figure: 1- water bath heating barrel, 11- water inlet, 12- drain outlet, 13- controller, 14- heating tube, 15- insulation layer, 2- storage barrel, 21- discharge port, 22- valve, 3- stirring rod, 31- stirring branch, 32- worm, 4- crushing device, 41- crushing barrel, 411- feed hopper, 412- discharge pipe, 42- servo motor, 43- first screw, 44- second screw, 45- driving wheel, 46- driven wheel, 47- turbine. DETAILED DESCRIPTION

[0023] The following is combined with Figure 1 -Attached Figure 4 The utility model is further described in detail:

[0024] The utility model embodiment discloses a polyurethane raw material heating and melting device, such as Figure 1 , Figure 2 As shown, a polyurethane raw material heating and melting device of the utility model comprises a water bath heating barrel 1, a material storage barrel 2 is arranged inside the water bath heating barrel 1, a water injection port 11 and a water discharge port 12 are arranged on the side wall of the water bath heating barrel 1, a crushing device 4 for crushing the polyurethane raw material is fixedly connected to the top of the water bath heating barrel 1 by bolts, and a stirring rod 3 for stirring the polyurethane raw material is arranged in the material storage barrel 2; in this embodiment, the specific shape of the material storage barrel 2 is as follows Figure 2As shown, the storage barrel 2 is fixedly arranged inside the water bath heating barrel 1. By arranging a crushing device 4 on the top of the water bath heating barrel 1, the polyurethane raw material can be crushed into finer particles before entering the storage barrel 2, reducing the energy required for heating. By arranging a stirring rod 3 on the top of the storage barrel 2, the polyurethane raw material can be stirred during the water bath heating process, and the raw material is heated more evenly.

[0025] like Figure 2 , Figure 3 , Figure 4 As shown, the crushing device 4 includes a crushing barrel 41, a servo motor 42, a first screw 43 and a second screw 44; a feed hopper 411 is provided on the top wall of the crushing barrel 41, and a discharge pipe 412 is provided on the bottom wall of the crushing barrel 41; the first screw 43 and the second screw 44 are rotatably connected inside the crushing barrel 41, and the servo motor 42 is fixedly connected to the side wall of the crushing barrel 41 by bolts, and the end of the first screw 43 close to the feed hopper 411 passes through the side wall of the crushing barrel 41 and is connected to the output end of the servo motor 42 through a coupling; a driving wheel 45 is integrally formed at one end of the first screw 43 close to the feed hopper 411, and a driving wheel 45 is integrally formed at one end of the second screw 44 close to the feed hopper 411. A driven wheel 46 is integrally formed, and the driving wheel 45 and the driven wheel 46 mesh with each other to form a gear match; in this embodiment, a driving wheel 45 and a driven wheel 46 are radially formed on the circumferential side wall of one end of the first screw 43 and the second screw 44 close to the feed hopper 411, and the driving wheel 45 and the driven wheel 46 are respectively integrally formed with the first screw 43 and the second screw 44. By providing the driving wheel 45 and the driven wheel 46, the first screw 43 and the second screw 44 can be rotated at the same time, ensuring that the first screw 43 and the second screw 44 rotate at the same frequency, avoiding the first screw 43 and the second screw 44 from slipping or getting stuck, and improving the crushing efficiency of the polyurethane raw material. The first screw 43 is driven to rotate in the crushing barrel 41 by the servo motor 42, at which time the driving wheel 45 will rotate in the same direction as the first screw 43, and the second screw 44 meshing therewith will rotate at the same frequency and in the opposite direction.

[0026] like Figure 2 As shown, the top of the storage barrel 2 is rotatably connected to a stirring rod 3 through a bearing, and a plurality of stirring branches 31 are formed at one end of the stirring rod 3 located inside the storage barrel 2, and a worm 32 is welded at one end of the stirring rod 3 located outside the storage barrel 2; in this embodiment, the specific shape of the stirring rod 3 is as follows Figure 2 As shown, by providing the stirring branch 31, the polyurethane raw material in the storage barrel 2 can be stirred during the water bath heating process, so that the raw material is heated evenly. By providing the worm 32, the servo motor 42 can provide power to the stirring rod 3 while providing power to the first screw 43, thereby increasing the operating efficiency.

[0027] like Figure 2 , Figure 3 , Figure 4 As shown, one end of the first screw 43 near the discharge pipe 412 passes through the side wall of the crushing barrel 41 and extends outside the crushing barrel 41 and is welded with a turbine 47. The turbine 47 can mesh with the worm 32 at the end of the stirring rod 3 to form a worm 32 transmission; in this embodiment, the connection method between the turbine 47 and the first screw 43 is as follows: Figure 4 As shown, by providing a turbine 47 and a worm 32, the first screw 43, the second screw 44 and the stirring rod 3 can be driven together by the same servo motor 42, without the need for separate motors to drive them independently, thereby increasing the operating efficiency and reducing the equipment construction and maintenance costs.

[0028] like Figure 1 , Figure 2 As shown, a feed port is provided at the top of the storage barrel 2, and a discharge pipe 412 at the bottom of the crushing barrel 41 is welded to the upper part of the feed port; a discharge port 21 is provided at the bottom of the storage barrel 2, and the discharge port 21 passes through the bottom of the water bath heating barrel 1 and extends outside the water bath heating barrel 1, and a valve 22 is provided on the discharge port 21 to seal it; in this embodiment, the discharge pipe 412 is connected to the feed port at the top of the storage barrel 2 by welding, and after the polyurethane raw material is crushed, it will directly enter the feed port at the top of the storage barrel 2 through the discharge pipe 412. By setting the discharge port 21 and the valve 22, the amount and flow rate of the polyurethane raw material outflow can be controlled.

[0029] like Figure 1 , Figure 2 As shown, a controller 13 for adjusting the water temperature in the water bath heating barrel 1 is provided at the bottom of the water bath heating barrel 1, and a heating pipe 14 for heating the water in the water bath heating barrel 1 is provided at the bottom of the inner wall of the water bath heating barrel 1, and the heating pipe 14 is electrically connected to the controller 13; in this embodiment, the water in the water bath heating barrel 1 is heated by the heating pipe 14 at the bottom of the inner wall of the water bath heating barrel 1, and the temperature and heating time of the water in the water bath heating barrel 1 are adjusted by the controller 13. Preferably, a heat preservation layer 15 is provided on the inner side wall of the water bath heating barrel 1.

[0030] The implementation principle of the embodiment of the utility model is:

[0031] The polyurethane raw material is put into the feed hopper 411, and the servo motor 42 is started. The servo motor 42 will drive the first screw 43 to rotate in the crushing barrel 41. At this time, the driving wheel 45 will rotate in the same direction as the first screw 43, and the second screw 44 engaged with it will rotate in the opposite direction to crush the polyurethane raw material; the polyurethane raw material will enter the storage barrel 2 from the feed port at the top of the storage barrel 2 along the discharge pipe 412, and the temperature and heating time of the water in the water bath heating barrel 1 are adjusted by the controller 13 to heat the polyurethane raw material in the storage barrel 2. At this time, the worm 32 at the end of the stirring rod 3 rotates under the action of the turbine 47 at the end of the first screw 43, and continues to stir during the heating process; after the polyurethane raw material is heated and melted, the polyurethane raw material is taken out through the discharge port 21 and the valve 22.

[0032] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The various components mentioned in the utility model are common technologies in the existing field. The technicians in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A polyurethane raw material heating and melting device, comprising a water bath heating barrel (1), a material storage barrel (2) is arranged inside the water bath heating barrel (1), and a water injection port (11) and a water discharge port (12) are arranged on the side wall of the water bath heating barrel (1), characterized in that: The top of the water bath heating barrel (1) is fixedly connected to a crushing device (4) for crushing the polyurethane raw material by bolts, and a stirring rod (3) for stirring the polyurethane raw material is arranged in the storage barrel (2); the crushing device (4) comprises a crushing barrel (41), a servo motor (42), a first screw (43) and a second screw (44); the top wall of the crushing barrel (41) is provided with a feed hopper (411), and the bottom wall of the crushing barrel (41) is provided with a discharge pipe (412); the first screw (43) and the second screw (44) are rotatably connected inside the crushing barrel (41), and the servo motor (42) is fixedly connected to the side wall of the crushing barrel (41) by bolts, and the end of the first screw (43) close to the feed hopper (411) passes through the side wall of the crushing barrel (41) and is connected to the output end of the servo motor (42) through a coupling. ; A driving wheel (45) is integrally formed at one end of the first screw (43) close to the feed hopper (411), and a driven wheel (46) is integrally formed at one end of the second screw (44) close to the feed hopper (411), and the driving wheel (45) and the driven wheel (46) are meshed with each other to form a gear match; a stirring rod (3) is rotatably connected to the top of the storage barrel (2) through a bearing, and a plurality of stirring branches (31) are formed at one end of the stirring rod (3) located inside the storage barrel (2), and a worm (32) is welded to one end of the stirring rod (3) located outside the storage barrel (2); one end of the first screw (43) close to the discharge pipe (412) passes through the side wall of the crushing barrel (41) and extends outside the crushing barrel (41) and is welded with a turbine (47), and the turbine (47) can mesh with the worm (32) at the end of the stirring rod (3) to form a worm (32) transmission.

2. The polyurethane raw material heating and melting device according to claim 1, characterized in that: The top of the material storage barrel (2) is provided with a feed port, and the discharge pipe (412) at the bottom of the crushing barrel (41) is welded to the upper part of the feed port; the bottom of the material storage barrel (2) is provided with a discharge port (21), and the discharge port (21) passes through the bottom of the water bath heating barrel (1) and extends outside the water bath heating barrel (1), and the discharge port (21) is provided with a valve (22) for sealing it.

3. The polyurethane raw material heating and melting device according to claim 1, characterized in that: A controller (13) for adjusting the water temperature in the water bath heating barrel (1) is arranged at the bottom of the water bath heating barrel (1), and a heating pipe (14) for heating the water in the water bath heating barrel (1) is arranged at the bottom of the inner wall of the water bath heating barrel (1), and the heating pipe (14) is electrically connected to the controller (13).

4. The polyurethane raw material heating and melting device according to claim 1, characterized in that: A heat-insulating layer (15) is provided on the inner side wall of the water bath heating barrel (1).

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