Polyurethane casting machine

Abstract

The utility model relates to the technical field of casting machines, in particular to a polyurethane casting machine which comprises a fixing plate, a belt wheel installed on one side of the fixing plate, a driving gear installed on the lower side of the belt wheel, a meshing gear arranged on one side of the driving gear, a stirring rod fixedly sleeved with the meshing gear, and a rotating sleeve installed at one end of the stirring rod. A stock bin is installed outside the stirring blades, an electromagnetic valve is fixedly installed at the bottom of the stock bin, and a transfer pump is arranged on one side of the electromagnetic valve; the stirring device has the beneficial effects that a belt wheel rotates to indirectly drive a driving gear to rotate, the driving gear is in meshing transmission with a meshing gear, so that a stirring rod fixedly sleeved with the meshing gear is driven to rotate, the stirring rod drives stirring blades at one end of the stirring rod to rotate, and rotation of the stirring rod is achieved; and under the rotating action of the rotating sleeve, the bottom of the stirring rod is driven to rotate by 360 degrees, so that the stirring range is expanded, and polyurethane condensation is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of casting machines, in particular to a polyurethane casting machine. Background Art

[0002] Engineering plastics only developed rapidly in the 1950s. Due to the high crystallinity of polyoxymethylene, it has excellent mechanical properties, making plastics a material that can replace metals and join the ranks of structural materials for the first time. The application of plastic engineering in practice is becoming more and more extensive. The main varieties include five general-purpose engineering plastics: polyamide, polycarbonate, polyoxymethylene, modified polyphenylene ether and thermoplastic polyester.

[0003] In the prior art, polyurethane is the full name of polyurethane, which is a polymer compound. It has better stability, chemical resistance, resilience and mechanical properties than PVC foam materials, and has smaller compression deformation. It has good heat insulation, sound insulation, earthquake resistance and anti-toxic properties, so it is used as packaging, sound insulation and filtration materials. Hard polyurethane plastic is light, sound insulation, excellent heat insulation performance, chemical resistance, good electrical properties, easy processing, and low water absorption. It is mainly used in construction, automobiles, aviation industry, and thermal insulation structural materials. The performance of polyurethane elastomer is between plastic and rubber. It is oil-resistant, wear-resistant, low-temperature resistant, aging-resistant, high hardness, and elastic. It is mainly used in the shoemaking industry and the medical industry. Polyurethane can also be used to make adhesives, coatings, synthetic leather, etc.

[0004] However, the existing polyurethane pouring machine is prone to cause polyurethane to condense in the equipment during use, affecting the normal pouring work. Utility Model Content

[0005] The purpose of the utility model is to provide a polyurethane pouring machine to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a polyurethane pouring machine, comprising a fixed plate, a pulley is installed on one side of the fixed plate, a driving gear is installed on the lower side of the pulley, a meshing gear is arranged on one side of the driving gear, a stirring rod is arranged in a fixed sleeve inside the meshing gear, a rotating sleeve is installed at one end of the stirring rod, a stirring blade is installed at the other end of the stirring rod, a silo is installed outside the stirring blade, a solenoid valve is fixedly installed at the bottom of the silo, and a material extraction pump is arranged on one side of the solenoid valve.

[0007] Preferably, a motor is fixedly mounted on the top of the fixed plate, the output end of the motor is fixedly connected to the pulley, a transmission shaft is fixedly sleeved on the bottom of the pulley, and a driving gear is fixedly sleeved on the transmission shaft.

[0008] Preferably, the pulley and the rotating ring are driven by belt friction, the rotating ring is fixedly sleeved on the rotating sleeve, one end of the rotating sleeve is sleeved on the upper support and is rotatably connected to the upper support, and a middle support is provided on the lower side of the upper support.

[0009] Preferably, one end of the stirring rod is sleeved in the rotating sleeve and rotatably connected to the rotating sleeve, the stirring blade is fixedly sleeved at the other end of the stirring rod, a crushing knife is installed on the upper side of the stirring blade, the crushing knife is fixedly sleeved on the stirring rod, and a lower support is provided on the lower side of the middle support.

[0010] Preferably, the upper support, the middle support, the lower support and the fixed plate are all fixedly connected, hemispherical blocks are provided on the upper and lower sides of the meshing gear, the hemispherical blocks are hinged to the middle support and the lower support, and the transmission shaft sleeve is provided on the middle support and is rotatably connected to the middle support.

[0011] Preferably, the lower surface of the fixed plate is fixedly connected to the silo, a hopper is provided on one side of the fixed plate, a fixed sleeve at the bottom of the hopper is provided on the top of the silo, an insulation sleeve is provided on the external fixed cover of the silo, and a heating pipe is fixedly installed on the inner wall of the silo.

[0012] Preferably, a controller is fixedly mounted on one side of the fixed plate, a bracket is fixedly connected to the lower surface of the silo, the motor, heating tube, solenoid valve, feed pump and controller are all electrically connected, and the lower surface of the feed pump is fixedly mounted on the bracket.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The polyurethane pouring machine proposed by the utility model, when pouring is needed, the solenoid valve is fixedly connected to the input end of the material pump through the connection of the pipeline, the output end of the material pump is connected to the pouring head through the pipeline, the heating pipe inside the silo is controlled by the controller to heat, and at the same time, the external fixed cover of the silo is provided with a heat preservation sleeve, so as to reduce the heat dissipation, and the motor fixedly installed on the top of the starting fixed plate drives the pulley fixedly connected to the output end to rotate, and the pulley drives the transmission shaft fixedly sleeved at the bottom to rotate, and under the rotation action of the transmission shaft, the transmission shaft drives the driving gear fixedly sleeved thereon to rotate, and the driving gear and the meshing The meshing gears are engaged for transmission, so that the meshing gears drive the stirring rod to rotate. The fixed sleeve at the bottom of the stirring rod is provided with stirring blades and crushing knives, so as to stir the material in the silo. The friction transmission among the belt, pulley and rotating ring drives the rotating ring to rotate. The fixed sleeve in the rotating ring is provided with a rotating sleeve. Under the rotation of the rotating sleeve, the stirring rod set on one side is driven to move. The hemispherical block fixed on the stirring rod is spherically hinged with the middle support and the lower support, so as to realize the 360-degree swinging rotation of the stirring rod, and then realize the swinging rotation while the stirring rod rotates, thereby expanding the stirring range and avoiding the condensation of polyurethane. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a top view schematic diagram of the overall structure of the utility model;

[0017] Figure 3 It is a bottom view schematic diagram of the overall structure of the utility model;

[0018] Figure 4 It is a top view schematic diagram of the internal structure of the utility model.

[0019] In the figure: 1, fixed plate; 2, pulley; 3, driving gear; 4, meshing gear; 5, stirring rod; 6, rotating sleeve; 7, stirring blade; 8, silo; 9, solenoid valve; 10, material pump; 11, motor; 12, transmission shaft; 13, rotating ring; 14, belt; 15, upper support; 16, middle support; 17, crushing knife;

[0020] 18. Lower support; 19. Hemispherical block; 20. Feeding hopper; 21. Insulation sleeve; 22. Heating tube; 23. Controller; 24. Bracket. DETAILED DESCRIPTION

[0021] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Embodiment 1

[0023] See also Figure 1-Figure 4 The utility model provides a technical solution: a polyurethane pouring machine, including a fixed plate 1, a pulley 2 is installed on one side of the fixed plate 1, a driving gear 3 is installed on the lower side of the pulley 2, a meshing gear 4 is arranged on one side of the driving gear 3, a stirring rod 5 is arranged in a fixed sleeve inside the meshing gear 4, a rotating sleeve 6 is installed at one end of the stirring rod 5, a stirring blade 7 is installed at the other end of the stirring rod 5, a silo 8 is installed outside the stirring blade 7, a solenoid valve 9 is fixedly installed at the bottom of the silo 8, and a material extraction pump 10 is arranged on one side of the solenoid valve 9.

[0024] The polyurethane raw material is added into the silo 8 from the hopper 20, and the pulley 2 on one side of the fixed plate 1 rotates, which indirectly drives the driving gear 3 to rotate. The driving gear 3 meshes with the meshing gear 4, thereby driving the stirring rod 5 fixedly mounted in the meshing gear 4 to rotate. The stirring rod 5 thereby drives the stirring blade 7 at one end thereof to rotate, thereby realizing the self-rotation of the stirring rod 5, thereby stirring the material in the silo 8. At the same time, a rotating sleeve 6 is installed at the other end of the stirring rod 5. Under the rotation action of the rotating sleeve 6, the bottom of the stirring rod 5 is driven to rotate 360 ​​degrees, thereby causing the stirring rod 5 to swing and rotate, thereby expanding the stirring range and avoiding polyurethane condensation. When pouring is required, the solenoid valve 9 is fixedly connected to the input end of the material pump 10 through the connection of the pipeline, and the output end of the material pump 10 is connected to the pouring head through a pipeline, thereby realizing the pouring function.

[0025] Embodiment 2

[0026] On the basis of the first embodiment, a motor 11 is fixedly installed on the top of the fixed plate 1, the output end of the motor 11 is fixedly connected to the pulley 2, a transmission shaft 12 is fixedly sleeved at the bottom of the pulley 2, a driving gear 3 is fixedly sleeved on the transmission shaft 12, a belt 14 is frictionally transmitted between the rotating rings 13, the rotating ring 13 is fixedly sleeved on the rotating sleeve 6, one end of the rotating sleeve 6 is sleeved on the upper support 15 and is rotatably connected to the upper support 15, a middle support 16 is provided on the lower side of the upper support 15, one end of the stirring rod 5 is sleeved in the rotating sleeve 6 and is connected to the rotating The sleeves 6 are rotatably connected, the stirring blade 7 is fixedly sleeved on the other end of the stirring rod 5, a crushing knife 17 is installed on the upper side of the stirring blade 7, the crushing knife 17 is fixedly sleeved on the stirring rod 5, a lower support 18 is arranged on the lower side of the middle support 16, the upper support 15, the middle support 16, the lower support 18 and the fixed plate 1 are all fixedly connected, the meshing gear 4 is provided with hemispherical blocks 19 on the upper and lower sides, the hemispherical blocks 19 and the middle support 16, the lower support 18 are all hinged, the transmission shaft 12 is sleeved on the middle support 16 and is rotatably connected to the middle support 16.

[0027] By starting the motor 11 fixedly installed on the top of the fixed plate 1, the motor 11 drives the pulley 2 fixedly connected to its output end to rotate, and the pulley 2 thereby drives the transmission shaft 12 fixedly sleeved at its bottom to rotate. Under the rotation action of the transmission shaft 12, the transmission shaft 12 drives the driving gear 3 fixedly sleeved thereon to rotate, and the driving gear 3 meshes with the meshing gear 4 for transmission, so that the meshing gear 4 drives the stirring rod 5 to rotate. The stirring rod 5 is fixedly sleeved with a stirring blade 7 and a crushing knife 17 at the bottom, so as to stir the material in the silo 8. Through the friction transmission between the belt 14, the pulley 2 and the rotating ring 13, the rotating ring 13 is driven to rotate. The rotating ring 13 is fixedly sleeved with a rotating sleeve 6. Under the rotation action of the rotating sleeve 6, the stirring rod 5 sleeved on one side thereof is driven to move. Through the spherical hinge between the hemispherical block 19 fixedly sleeved on the stirring rod 5 and the middle support 16 and the lower support 18, the stirring rod 5 can swing and rotate 360 ​​degrees, and then the stirring rod 5 can swing and rotate while rotating, thereby expanding the stirring range and avoiding polyurethane condensation.

[0028] Embodiment 3

[0029] On the basis of Example 2, the lower surface of the fixed plate 1 is fixedly connected to the silo 8, a feeding hopper 20 is arranged on one side of the fixed plate 1, the bottom of the feeding hopper 20 is fixedly sleeved on the top of the silo 8, the external fixed cover of the silo 8 is provided with an insulation sleeve 21, a heating pipe 22 is fixedly installed on the inner wall of the silo 8, a controller 23 is fixedly installed on one side of the fixed plate 1, a bracket 24 is fixedly connected to the lower surface of the silo 8, the motor 11, the heating pipe 22, the solenoid valve 9, the feed pump 10 and the controller 23 are all electrically connected, and the lower surface of the feed pump 10 is fixedly installed on the bracket 24.

[0030] The fixed plate 1 provides fixed support, and the feeding hopper 20 facilitates the addition of materials. The heating tube 22 inside the silo 8 is controlled by the controller 23 for heating. At the same time, the external fixed cover of the silo 8 is provided with an insulation sleeve 21 to reduce heat dissipation. The bracket 24 provides fixed support to the silo 8. When pouring is required, the solenoid valve 9 is fixedly connected to the input end of the pump 10 through the connection of the pipeline, and the output end of the pump 10 is connected to the pouring head through the pipeline, thereby realizing the pouring function.

[0031] In actual use, when pouring is required, the solenoid valve 9 is fixedly connected to the input end of the material pump 10 through the connection of the pipeline, and the output end of the material pump 10 is connected to the pouring head through the pipeline. The heating pipe 22 inside the silo 8 is controlled by the controller 23 to heat it. At the same time, the external fixed cover of the silo 8 is provided with a heat preservation sleeve 21 to reduce the heat dissipation. By starting the motor 11 fixedly installed on the top of the fixed plate 1, the motor 11 drives the pulley 2 fixedly connected to its output end to rotate, and the pulley 2 thereby drives the transmission shaft 12 fixedly sleeved at its bottom to rotate. Under the rotation action of the transmission shaft 12, the transmission shaft 12 drives the driving gear 3 fixedly sleeved thereon to rotate, and the driving gear 3 meshes with the meshing gear 4. The meshing gear 4 drives the stirring rod 5 to rotate. The stirring rod 5 is fixedly sleeved with stirring blades 7 and crushing knives 17 at the bottom, so as to stir the material in the silo 8. The friction transmission among the belt 14, the pulley 2 and the rotating ring 13 drives the rotating ring 13 to rotate. The rotating ring 13 is fixedly sleeved with a rotating sleeve 6. Under the rotation of the rotating sleeve 6, the stirring rod 5 sleeved on one side thereof is driven to move. The hemispherical block 19 fixedly sleeved on the stirring rod 5 is spherically hinged with the middle support 16 and the lower support 18, so as to realize the 360-degree swinging rotation of the stirring rod 5, and then realize the swinging rotation while the stirring rod 5 rotates, thereby expanding the stirring range and avoiding the condensation of polyurethane.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A polyurethane casting machine, comprising a fixed plate (1), characterized in that: A pulley (2) is installed on one side of the fixed plate (1), a driving gear (3) is installed on the lower side of the pulley (2), a meshing gear (4) is provided on one side of the driving gear (3), a stirring rod (5) is provided in a fixed sleeve inside the meshing gear (4), a rotating sleeve (6) is installed at one end of the stirring rod (5), and a stirring blade (7) is installed at the other end of the stirring rod (5); A material bin (8) is installed outside the stirring blade (7), a solenoid valve (9) is fixedly installed at the bottom of the material bin (8), and a material extraction pump (10) is arranged on one side of the solenoid valve (9).

2. A polyurethane casting machine according to claim 1, characterized in that: A motor (11) is fixedly mounted on the top of the fixed plate (1), the output end of the motor (11) is fixedly connected to the pulley (2), a transmission shaft (12) is fixedly sleeved on the bottom of the pulley (2), and the driving gear (3) is fixedly sleeved on the transmission shaft (12).

3. A polyurethane casting machine according to claim 2, characterized in that: The pulley (2) and the rotating ring (13) are frictionally driven by a belt (14); the rotating ring (13) is fixedly sleeved on a rotating sleeve (6); one end of the rotating sleeve (6) is sleeved on an upper support (15) and is rotatably connected to the upper support (15); a middle support (16) is provided on the lower side of the upper support (15).

4. A polyurethane casting machine according to claim 3, characterized in that: One end of the stirring rod (5) is sleeved in the rotating sleeve (6) and is rotatably connected to the rotating sleeve (6); the stirring blade (7) is fixedly sleeved on the other end of the stirring rod (5); a crushing knife (17) is installed on the upper side of the stirring blade (7); the crushing knife (17) is fixedly sleeved on the stirring rod (5); and a lower support (18) is provided on the lower side of the middle support (16).

5. A polyurethane casting machine according to claim 4, characterized in that: The upper support (15), the middle support (16), the lower support (18) and the fixed plate (1) are all fixedly connected, and the meshing gear (4) is provided with a hemispherical block (19) on both upper and lower sides, and the hemispherical block (19) and the middle support (16) and the lower support (18) are all hinged, and the transmission shaft (12) is sleeved on the middle support (16) and is rotatably connected to the middle support (16).

6. A polyurethane casting machine according to claim 5, characterized in that: The lower surface of the fixed plate (1) is fixedly connected to the silo (8), a feeding hopper (20) is arranged on one side of the fixed plate (1), the bottom of the feeding hopper (20) is fixedly sleeved on the top of the silo (8), the outer fixed cover of the silo (8) is provided with a heat preservation sleeve (21), and a heating pipe (22) is fixedly installed on the inner wall of the silo (8).

7. A polyurethane casting machine according to claim 6, characterized in that: A controller (23) is fixedly mounted on one side of the fixed plate (1); a bracket (24) is fixedly connected to the lower surface of the silo (8); the motor (11), the heating tube (22), the solenoid valve (9), the material pump (10) and the controller (23) are all electrically connected; and the lower surface of the material pump (10) is fixedly mounted on the bracket (24).

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