Raw material mixing device for rigid polyurethane foam material composite board

Abstract

The utility model discloses a rigid polyurethane foam material composite board raw material mixing device which comprises a stirring barrel, the stirring barrel is connected with a processing part, the processing part comprises a stirring part which is installed on the stirring barrel and used for stirring materials, and the stirring part comprises a motor arranged at the top of the stirring barrel, the output end of the bottom of the motor is connected with a belt pulley assembly, and the middle of the upper end of the stirring barrel is rotationally connected with a stirring frame driven by the belt pulley assembly. According to the rigid polyurethane foam material composite board raw material mixing device, the mixing drum, the motor, the belt pulley assembly, the stirring frame, the air compressor, the guide pipe, the first three-way valve, the water pump, the branch pipe, the second three-way valve, the feeding pipe and the spraying strip are matched with one another, rigid polyurethane foam material composite board raw materials are mixed and stirred, and compressed air or water is sprayed to the stirring end according to needs; and the stripping and cleaning effects are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of polyurethane rigid foam composite board production, in particular to a raw material mixing device for polyurethane rigid foam composite boards. Background Technique

[0002] During the production process of polyurethane rigid foam composite boards, a corresponding mixing device is required to mix its raw materials. Referring to a raw material mixing device for polyurethane rigid foam composite boards with the publication number CN213471786U, which includes a bottom plate. Four universal self-locking wheels are symmetrically installed at the bottom of the bottom plate. Vertical rods are symmetrically fixed at the top of the bottom plate. When the device needs to work in other places, the device can be pushed more conveniently and easily, which is relatively labor-saving. As described in the above patent, when the existing raw material mixing device for polyurethane rigid foam composite board production is in use, most of the stirring ends are not stripped and cleaned of materials before and after stirring, which affects the recovery rate of the mixed raw materials and increases the subsequent cleaning steps, thus affecting the production efficiency of the mixed materials. Content of the Utility Model

[0003] Aiming at the deficiencies of the prior art, the utility model provides a raw material mixing device for polyurethane rigid foam composite boards, which solves the problems that the device is difficult to effectively handle the impurities attached to the stirring end and affects the production efficiency.

[0004] To achieve the above objectives, the utility model is realized through the following technical solutions: A raw material mixing device for polyurethane rigid foam composite boards, including a stirring barrel, the stirring barrel is connected with a processing part for mixing the raw materials of the polyurethane rigid foam composite board. The processing part includes:

[0005] A stirring part, installed on the stirring barrel for material stirring. The stirring part includes a motor arranged at the top of the stirring barrel. The bottom output end of the motor is connected with a pulley assembly. The middle part of the upper end of the stirring barrel is rotationally connected with a stirring frame driven by the pulley assembly. A valve is installed at the bottom of the stirring barrel. A processing part for removing the remaining materials attached to the stirring frame is arranged at the top of the stirring barrel. The processing part includes an air compressor and a water pump fixedly connected to the rear end of the outer side of the stirring barrel. The upper exhaust end of the air compressor is installed with a conduit. The upper drainage end of the water pump is installed with a first three-way valve fixedly connected to the conduit. A branch pipe is arranged on the upper side of the first three-way valve. A second three-way valve is installed on the left side of the branch pipe. An injection pipe is installed on the upper side of the second three-way valve. A connecting column fixedly connected to the injection pipe is arranged at the top of the outer side of the stirring barrel;

[0006] A feed pipe, arranged at the upper rear end of the stirring barrel for material feeding;

[0007] A spray bar, arranged at the upper side inside the stirring barrel and connected to the bottom of the second three-way valve.

[0008] Preferably, the output end of the motor is coaxially and fixedly connected to the driving pulley in the pulley assembly, and the driven pulley in the pulley assembly is coaxially and fixedly connected to the top of the stirring frame.

[0009] Preferably, the stirring frame includes a frame body rotatably connected to the stirring barrel and connected to the driven pulley in the pulley assembly. The middle of the frame body is rotatably connected to the connecting column. Scrapers fitting the inner wall of the stirring barrel are installed at the edge of the frame body. A plurality of connecting pipes are arranged inside the frame body. A plurality of filter strips communicating with the connecting pipes are arranged at the lower side of the frame body. The inside of the connecting column is hollow and communicates with the injection pipe.

[0010] Preferably, a spray ring communicating with the injection pipe is arranged at the end of the connecting column close to the connecting pipe, and a slotted groove communicating with the connecting pipe and the spray ring is arranged inside the frame body.

[0011] Preferably, a support frame is installed at the lower end outside the stirring barrel, a filter screen is arranged at the air extraction end of the air compressor, and a water extraction pipe is installed at the bottom water extraction end of the water pump.

[0012] Preferably, a plurality of spray holes are arranged at the bottom of the spray bar, the motor is a servo motor, and the second three-way valve is fixedly connected to the top of the stirring barrel.

[0013] Advantageous Effects

[0014] The utility model provides a mixing device for raw materials of polyurethane rigid foam composite plates. Compared with the prior art, the following advantageous effects are achieved:

[0015] (1) In the mixing device for raw materials of polyurethane rigid foam composite plates, by arranging a stirring member and a spray bar in the device, the stirring barrel, the motor, the pulley assembly, the stirring frame, the air compressor, the conduit, the first three-way valve, the water pump, the branch pipe, the second three-way valve, the feed pipe, and the spray bar cooperate with each other to mix and stir the raw materials of the polyurethane rigid foam composite plates, and spray compressed air or water on the stirring end as required to play a role in peeling and cleaning, reducing the recovery rate of the subsequent mixed materials affected by the remaining materials attached to the stirring end, and reducing the subsequent cleaning steps, thereby improving the raw material mixing efficiency.

[0016] (2) In the mixing device for raw materials of polyurethane rigid foam composite plates, by arranging a second three-way valve in the stirring member, during the stirring process, the second three-way valve is reversed. At this time, the compressed air generated by the air compressor passes through the conduit, the first three-way valve, the branch pipe, the second three-way valve, the injection pipe, the connecting column, the spray ring, the slotted groove, the connecting pipe, and the filter strip and sprays out, promoting the detachment of the remaining materials attached to the lower surface of the frame body, and reducing the influence on the peeling effect of the attached materials caused by the difficulty in treating the dead angle at the stirring end. Description of the Drawings

[0017] Figure 1It is a sectional perspective view of the present utility model;

[0018] Figure 2 It is an enlarged view of the processing part of the present utility model;

[0019] Figure 3 It is a partially sectional enlarged view of the stirring frame assembly of the present utility model;

[0020] Figure 4 It is a perspective view of the present utility model.

[0021] In the figure: 1, stirring cylinder; 2, stirring part; 21, motor; 22, pulley assembly; 23, stirring frame; 231, frame body; 232, scraping blade; 233, connecting pipe; 234, filter strip; 24, valve; 25, processing part; 251, air compressor; 252, conduit; 253, first three-way valve; 254, water pump; 255, branch pipe; 256, second three-way valve; 257, injection pipe; 26, connecting column; 3, feed pipe; 4, spraying strip. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0023] Refer to Figures 1-4 , the present utility model provides the following two technical solutions:

[0024] The first implementation manner: A mixing device for raw materials of a polyurethane rigid foam composite board, including a stirring cylinder 1, and a processing part connected to the stirring cylinder 1 for mixing the raw materials of the polyurethane rigid foam composite board. The processing part includes: a stirring part 2 installed on the stirring cylinder 1 for stirring materials. The stirring part 2 includes a motor 21 arranged at the top of the stirring cylinder 1. The bottom output end of the motor 21 is connected to a pulley assembly 22. The middle part of the upper end of the stirring cylinder 1 is rotatably connected to a stirring frame 23 driven by the pulley assembly 22. A valve 24 is installed at the bottom of the stirring cylinder 1. A processing part 25 for removing the remaining materials attached to the stirring frame 23 is arranged at the top of the stirring cylinder 1;

[0025] The processing component 25 includes an air compressor 251 and a water pump 254 fixedly connected to the outer rear end of the mixing drum 1. A conduit 252 is installed at the upper exhaust end of the air compressor 251, and a first three-way valve 253 fixedly connected to the conduit 252 is installed at the upper drainage end of the water pump 254. A branch pipe 255 is provided above the first three-way valve 253, a second three-way valve 256 is installed on the left side of the branch pipe 255, and an injection pipe 257 is installed above the second three-way valve 256. A connecting column 26 fixedly connected to the injection pipe 257 is provided at the outer top of the mixing drum 1;

[0026] The feed pipe 3 is arranged at the upper rear end of the mixing drum 1 for feeding materials; the spray bar 4 is arranged on the upper side inside the mixing drum 1 and connected to the bottom of the second three-way valve 256; the output end of the motor 21 is coaxially and fixedly connected to the driving pulley inside the pulley assembly 22, and the driven pulley inside the pulley assembly 22 is coaxially and fixedly connected to the top of the stirring frame 23; a support frame is installed at the lower outer end of the mixing drum 1, a filter screen is provided at the air suction end of the air compressor 251, and a water suction pipe is installed at the bottom water suction end of the water pump 254; a number of spray holes are provided at the bottom of the spray bar 4, the motor 21 is a servo motor, and the second three-way valve 256 is fixedly connected to the top of the mixing drum 1; the mixing drum 1, the motor 21, the pulley assembly 22, the stirring frame 23, the air compressor 251, the conduit 252, the first three-way valve 253, the water pump 254, the branch pipe 255, the second three-way valve 256, the feed pipe 3, and the spray bar 4 cooperate with each other to mix and stir the raw materials of the polyurethane rigid foam composite board, and spray compressed air or water at the stirring end as required to play a role in peeling and cleaning;

[0027] The second implementation mode is mainly different from the first implementation mode in that:

[0028] The stirring frame 23 includes a frame body 231 rotatably connected to the mixing drum 1 and connected to the driven pulley inside the pulley assembly 22. The middle of the frame body 231 is rotatably connected to the connecting column 26. Scraping blades 232 fitting the inner wall of the mixing drum 1 are installed at the edge of the frame body 231. A number of communicating pipes 233 are provided inside the frame body 231, and a number of filter strips 234 communicating with the communicating pipes 233 are provided below the frame body 231. The inside of the connecting column 26 is hollow and communicates with the injection pipe 257;

[0029] A spray ring communicating with the injection pipe 257 is provided at the end of the connecting column 26 close to the communicating pipe 233. Grooves communicating with the communicating pipe 233 and the spray ring are provided in the frame body 231. Driven by the pulley assembly 22, the frame body 231 and the scraping blade 232 rotate. The frame body 231 stirs the material, and the scraping blade 232 scrapes the inner wall of the mixing cylinder 1, playing a role in peeling off the impurities remaining on the inner wall of the mixing cylinder 1, causing the second three-way valve 256 to change its direction. At this time, the compressed air generated by the air compressor 251 passes through the conduit 252, the first three-way valve 253, the branch pipe 255, the second three-way valve 256, the injection pipe 257, the connecting column 26, the spray ring, the groove, the communicating pipe 233, and the filter strip 234 and is ejected, promoting the shedding of the remaining material adhering to the lower surface of the frame body 231.

[0030] Meanwhile, the content not described in detail in this specification belongs to the prior art well-known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment can be used.

[0031] During use, the user sequentially introduces the raw materials of the polyurethane rigid foam composite board into the mixing cylinder 1 through the feed pipe 3. The raw materials introduced into the mixing cylinder 1 remain on the valve 24 at the bottom of the mixing cylinder 1. Start the motor 21. The motor 21 drives the mixing frame 23 to rotate through the pulley assembly 22. The frame body 231 and the scraping blade 232 in the rotating mixing frame 23 stir the raw materials. Among them, the scraping blade 232 scrapes the inner wall of the mixing cylinder 1 to prevent the inner wall of the mixing cylinder 1 from adhering to the material. During the stirring process, the upper end of the feed pipe 3 is closed, and the air compressor 251 is turned on. The air compressor 251 extracts the external gas and compresses it. Then the compressed gas passes through the conduit 252, the first three-way valve 253, the branch pipe 255, the second three-way valve 256, and the spray bar 4 and is ejected. The compressed air ejected from the spray bar 4 blows on the surface of the rotating mixing frame 23, promoting the shedding of the adhering raw materials. After the raw materials are mixed, place the first recycling box under the valve 24, turn off the air compressor 251 and open the valve 24. Under the action of gravity, the stirred material falls into the first recycling box. Take away the first recycling box filled with materials. Place the second recycling box under the valve 24, change the direction of the first three-way valve 253 and turn on the water pump 254. The water pump 254 extracts the external water source through the water suction pipe and sprays the water through the first three-way valve 253, the branch pipe 255, the second three-way valve 256, and the spray bar 4 to clean the outer surface of the mixing frame 23.

[0032] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0033] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present utility model, and the scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A mixing device for raw materials of a polyurethane rigid foam composite board, comprising a stirring cylinder (1), characterized in that: The mixing drum (1) is connected with a processing component for mixing the raw materials of the polyurethane rigid foam composite board, and the processing component includes: A mixing component (2) installed on the mixing drum (1) for material mixing. The mixing component (2) includes a motor (21) arranged at the top of the mixing drum (1). The bottom output end of the motor (21) is connected with a pulley assembly (22). A mixing frame (23) driven by the pulley assembly (22) is rotatably connected to the middle of the upper end of the mixing drum (1). A valve (24) is installed at the bottom of the mixing drum (1). A processing component (25) for removing the remaining materials attached to the mixing frame (23) is arranged at the top of the mixing drum (1). The processing component (25) includes an air compressor (251) and a water pump (254) fixedly connected to the rear end of the outer side of the mixing drum (1). A conduit (252) is installed at the upper exhaust end of the air compressor (251). A first three-way valve (253) fixedly connected to the conduit (252) is installed at the upper drainage end of the water pump (254). A branch pipe (255) is arranged at the upper side of the first three-way valve (253). A second three-way valve (256) is installed on the left side of the branch pipe (255). An injection pipe (257) is installed at the upper side of the second three-way valve (256). A connecting column (26) fixedly connected to the injection pipe (257) is arranged at the top of the outer side of the mixing drum (1); A feed pipe (3) arranged at the upper rear end of the mixing drum (1) for material feeding; A spray bar (4) arranged at the upper inner side of the mixing drum (1) and connected to the bottom of the second three-way valve (256).

2. The raw material mixing device for a polyurethane rigid foam composite board according to claim 1, characterized in that: The output end of the motor (21) is coaxially and fixedly connected with the driving pulley inside the pulley assembly (22), and the driven pulley inside the pulley assembly (22) is coaxially and fixedly connected with the top of the mixing frame (23).

3. The raw material mixing device for a polyurethane rigid foam composite board according to claim 1, characterized in that: The mixing frame (23) includes a frame body (231) rotatably connected to the mixing drum (1) and connected to the driven pulley inside the pulley assembly (22). The middle of the frame body (231) is rotatably connected to the connecting column (26). Scraping blades (232) attached to the inner wall of the mixing drum (1) are installed at the edge of the frame body (231). A plurality of groups of communicating pipes (233) are arranged inside the frame body (231). A plurality of groups of filter strips (234) communicated with the communicating pipes (233) are arranged at the lower side of the frame body (231). The inside of the connecting column (26) is hollow and communicated with the injection pipe (257).

4. The raw material mixing device for a polyurethane rigid foam composite board according to claim 3, characterized in that: A spray ring communicated with the injection pipe (257) is arranged at the end of the connecting column (26) close to the communicating pipe (233). Grooves communicated with the communicating pipes (233) and the spray ring are arranged inside the frame body (231).

5. The raw material mixing device for a polyurethane rigid foam composite board according to claim 1, characterized in that: A support frame is installed at the lower outer side of the mixing drum (1). A filter screen is arranged at the air extraction end of the air compressor (251). A water suction pipe is installed at the bottom water suction end of the water pump (254).

6. The raw material mixing device for a polyurethane rigid foam composite board according to claim 1, characterized in that: A plurality of spray holes are arranged at the bottom of the spray bar (4). The motor (21) is a servo motor. The second three-way valve (256) is fixedly connected to the top of the mixing drum (1).

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