Multi-pass distributing device for batch-type production line of B1-level polyurethane heat insulation plates

Abstract

The utility model relates to a multi-pass distributing device for a B1-level polyurethane thermal insulation board intermittent production line, which is applied to the field of thermal insulation board production and comprises a box body, a plurality of accommodating holes are formed in the inner bottom wall of the box body, sealing rings are fixedly connected to the inner walls of the accommodating holes, and a plurality of multi-pass pipes corresponding to the sealing rings are arranged in the box body. The lower ends of the multi-way pipes penetrate through the sealing ring and extend to the lower end of the box body, the lower ends of the outer rings of the multi-way pipes are fixedly sleeved with baffles, the lower ends of the multiple multi-way pipes are jointly and fixedly connected with a flow dividing pipe, the outer ring of the flow dividing pipe is fixedly sleeved with a collecting pipe, the inner bottom wall of the collecting pipe is fixedly connected with a guide-in pipe, and the upper end of the guide-in pipe fixedly penetrates into the flow dividing pipe. A traditional method that one plate only uses one gun barrel for injection is changed, the multiple multi-way pipes are arranged, the multiple multi-way pipes inject materials into a mold cavity at the same time, polyurethane liquid is evenly sprayed on a forming plate, and therefore the density of the heat insulation plate is reduced, and the strength of the heat insulation plate is improved.

Description

Technical Field

[0001] The utility model relates to a multi-way distributor for an intermittent production line of B1-level polyurethane heat insulation boards, in particular to a multi-way distributor for an intermittent production line of B1-level polyurethane heat insulation boards applied to the field of heat insulation board production. Background Art

[0002] In some buildings that require heat insulation, heat insulation boards generally need to be installed for heat insulation. The heat insulation boards are connected to the wall surface by connectors and completely cover the wall surface, which can effectively block the heat transfer between the internal and external spaces. A cloth device is used in the production of polyurethane heat insulation boards.

[0003] The intermittent polyurethane production line is a way to produce polyurethane heat insulation boards. Its principle is to install a lower forming plate and an upper forming plate and then push them into the mold cavity to inject into the mold cavity. However, during the injection process, direct spraying through the gun head will cause uneven spraying in the mold cavity, resulting in high density, unevenness, and poor strength of the produced heat insulation boards. Especially when producing polyurethane sandwich panels with high flame retardancy, the fluidity of the polyurethane liquid is very poor, and even serious foam deficiency phenomena of the heat insulation boards occur. Content of the Utility Model

[0004] Aiming at the above-mentioned prior art, the technical problem to be solved by the utility model is that when the intermittent polyurethane production line produces polyurethane heat insulation boards, direct spraying through the gun head will cause uneven spraying in the mold cavity, resulting in high density, unevenness, and poor strength of the produced heat insulation boards, and even serious foam deficiency phenomena of the heat insulation boards.

[0005] To solve the above problems, the utility model provides a multi-way distributor for an intermittent production line of B1-level polyurethane heat insulation boards, including a box body. A plurality of accommodation holes are opened on the inner bottom wall of the box body. Sealing rings are fixedly connected to the inner walls of the accommodation holes. A plurality of multi-way pipes corresponding to the plurality of sealing rings are arranged in the box body. The lower ends of the multi-way pipes penetrate through the sealing rings and extend to the lower end of the box body. A baffle is fixedly sleeved on the lower end of the outer circle of the multi-way pipe. The lower ends of the plurality of multi-way pipes are fixedly connected to a shunt pipe together. A collecting pipe is fixedly sleeved on the outer circle of the shunt pipe. An inlet pipe is fixedly connected to the inner bottom wall of the collecting pipe. The upper end of the inlet pipe fixedly penetrates into the shunt pipe. A plurality of inlet holes are drilled through the outer surface of the inlet pipe. An installation block is arranged at the lower end of the collecting pipe. Two high-pressure injection gun heads are arranged at the lower end of the installation block. The upper ends of the high-pressure injection gun heads sequentially penetrate through the installation block and the collecting pipe. The end of the high-pressure injection gun head away from the installation block is fixedly connected to a feed pipe. The end of the feed pipe away from the high-pressure injection gun head is fixedly connected to a feeding system.

[0006] In the multi-pass distributor for the B1-level polyurethane heat-insulating board intermittent production line described above, the traditional method of using only one gun barrel for injection per board is changed. Multiple multi-pass pipes are set up so that multiple multi-pass pipes inject materials into the interior of the mold cavity simultaneously, spraying the polyurethane liquid evenly on the forming board, thereby reducing the density of the heat-insulating board and improving the strength of the heat-insulating board.

[0007] As a further improvement of the present application, the multi-pass pipe includes a spray pipe and a plurality of first nozzles and second nozzles fixedly connected to the outer surface of the spray pipe. The aperture of the second nozzle is smaller than that of the first nozzle, and the second nozzle is located between two adjacent first nozzles.

[0008] As a further improvement of the present application, the outer surface of the spray pipe fits with the inner ring surface of the sealing ring. The sealing ring is made of elastic rubber material. The diameter of the baffle is larger than that of the sealing ring, and the upper end of the baffle fits with the lower end of the box body.

[0009] As a further improvement of the present application, the shunt pipe includes a straight pipe and a plurality of L-shaped pipes fixedly connected to the outer surface of the straight pipe. The upper end of the straight pipe is fixedly connected to the lower end of the middle multi-pass pipe, and the upper ends of the plurality of L-shaped pipes are respectively fixedly connected to the lower ends of the multi-pass pipes on both sides. The straight pipe is communicated with the L-shaped pipes, and electric valves are fixedly installed on the outer circles of the plurality of L-shaped pipes.

[0010] As another improvement of the present application, the collecting pipe includes an aggregate pipe and a fixed pipe fixedly penetrating through the upper end of the aggregate pipe. The fixed pipe is fixedly sleeved on the outer surface of the straight pipe, and the lower end of the fixed pipe does not contact the lower end of the aggregate pipe.

[0011] As a supplement to another improvement of the present application, the upper end of the inlet pipe is located inside the fixed pipe. The outer surface of the inlet pipe is fixedly connected to the inner wall of the straight pipe. A plurality of inlet holes are distributed in a circular array around the central axis of the inlet pipe, and the inlet holes are located below the fixed pipe.

[0012] As another improvement of the present application, an electric rotating disc is fixedly connected to the upper end of the aggregate pipe. The electric rotating disc is fixedly sleeved on the outer surface of the shunt pipe. An annular rotating groove is dug on the upper surface of the aggregate pipe. Two stirring rods are fixedly connected to the lower end of the electric rotating disc, and the lower ends of the stirring rods penetrate through the annular rotating groove and extend into the aggregate pipe.

[0013] In summary, in the actual application process, different spraying materials are transported to the high-pressure injection gun head through the feeding pipe by the feeding system. The high-pressure injection gun head then injects the spraying materials into the collecting pipe. The spraying materials enter the guiding pipe through the guiding holes, and then enter different multi-way pipes through the shunt pipe for spraying. The fitting of the baffle plate to the box body makes the multi-way pipes perpendicular to the box body, thereby improving the uniformity of the cloth feeding. Furthermore, the traditional method of injecting with only one gun barrel for one board is changed, enabling multiple multi-way pipes to inject materials into the mold cavity simultaneously, spraying the polyurethane liquid evenly on the forming board, thereby reducing the density of the heat insulation board, improving the strength of the heat insulation board, and being able to produce fireproof grade B1 or B2 and conventional polyurethane sandwich panels simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 Structural schematic diagram of the first embodiment of the present application;

[0015] Figure 2 Operation schematic diagram of the first embodiment of the present application;

[0016] Figure 3 Structural schematic diagram of the box body of the first embodiment of the present application;

[0017] Figure 4 Structural schematic diagram of the multi-way pipe of the first embodiment of the present application;

[0018] Figure 5 Structural schematic diagram of the collecting pipe of the first embodiment of the present application;

[0019] Figure 6 Structural schematic diagram of the collecting pipe of the second embodiment of the present application.

[0020] Description of the reference numerals in the drawings:

[0021] 1 Box body, 2 Sealing ring, 3 Multi-way pipe, 301 Spray pipe, 302 Nozzle 1, 303 Nozzle 2, 4 Shunt pipe, 5 Collecting pipe, 501 Aggregate pipe, 502 Fixed pipe, 6 Guiding pipe, 7 Guiding hole, 8 Mounting block, 9 High-pressure injection gun head, 10 Baffle plate, 11 Electric turntable, 12 Stirring rod. SPECIFIC EMBODIMENTS

[0022] The following provides a detailed description of the two embodiments of the present application with reference to the drawings.

[0023] The first embodiment:

[0024] Figure 1 and Figure 2Shown: A multi-pass distributor for an intermittent production line of B1-level polyurethane insulation boards, including a box body 1. The inner bottom wall of the box body 1 is provided with a plurality of accommodating holes. The inner wall of the accommodating hole is fixedly connected with a sealing ring 2. The sealing ring 2 can limit and seal the multi-pass pipe 3, and at the same time facilitate the removal of the multi-pass pipe 3. A plurality of multi-pass pipes 3 corresponding to the plurality of sealing rings 2 are arranged in the box body 1. The lower end of the multi-pass pipe 3 penetrates through the sealing ring 2 and extends to the lower end of the box body 1. A baffle 10 is fixedly sleeved on the lower end of the outer ring of the multi-pass pipe 3. The baffle 10 can block the sealing ring 2 to improve the sealing performance, and at the same time can limit the multi-pass pipe 3 to make the multi-pass pipe 3 perpendicular to the box body 1. The lower ends of the plurality of multi-pass pipes 3 are fixedly connected together with a shunt pipe 4. The shunt pipe 4 sprays materials and diverts them into different multi-pass pipes 3, which is convenient for spraying materials. A collecting pipe 5 is fixedly sleeved on the outer ring of the shunt pipe 4. The collecting pipe 5 converges different sprayed materials into the collecting pipe 501. The inner bottom wall of the collecting pipe 5 is fixedly connected with a guiding pipe 6. The upper end of the guiding pipe 6 fixedly penetrates into the shunt pipe 4. A plurality of guiding holes 7 are drilled through the outer surface of the guiding pipe 6. The sprayed materials enter the guiding pipe 6 through the guiding holes 7. An installation block 8 is arranged at the lower end of the collecting pipe 5. Two high-pressure injection gun heads 9 are arranged at the lower end of the installation block 8. The upper ends of the high-pressure injection gun heads 9 sequentially penetrate through the installation block 8 and the collecting pipe 5. One end of the high-pressure injection gun head 9 away from the installation block 8 is fixedly connected with a feeding pipe. The other end of the feeding pipe away from the high-pressure injection gun head 9 is fixedly connected with a feeding system.

[0025] Figure 3 and Figure 4 Shown: The multi-pass pipe 3 includes a spray pipe 301 and a plurality of first nozzles 302 and second nozzles 303 fixedly connected to the outer surface of the spray pipe 301. The aperture of the second nozzle 303 is smaller than that of the first nozzle 302. The second nozzle 303 is located between two adjacent first nozzles 302. By setting different angles of the first nozzles 302 and the second nozzles 303, the mold cavity is evenly filled with materials. The outer surface of the spray pipe 301 fits with the inner ring surface of the sealing ring 2. The sealing ring 2 is made of elastic rubber material. The diameter of the baffle 10 is larger than that of the sealing ring 2. The upper end of the baffle 10 fits with the lower end of the box body 1. The shunt pipe 4 includes a straight pipe and a plurality of L-shaped pipes fixedly connected to the outer surface of the straight pipe. The upper end of the straight pipe is fixedly connected to the lower end of the middle multi-pass pipe 3. The upper ends of the plurality of L-shaped pipes are respectively fixedly connected to the lower ends of the multi-pass pipes 3 on both sides. The straight pipe is communicated with the L-shaped pipes. Electric valves are fixedly installed on the outer rings of the plurality of L-shaped pipes.

[0026] Figure 5Shown: The collecting pipe 5 includes an aggregate pipe 501 and a fixed pipe 502 fixedly penetrating through the upper end of the aggregate pipe 501. The fixed pipe 502 is fixedly sleeved on the outer surface of the straight pipe. The lower end of the fixed pipe 502 does not contact the lower end of the aggregate pipe 501. The upper end of the introduction pipe 6 is located inside the fixed pipe 502. The outer surface of the introduction pipe 6 is fixedly connected to the inner wall of the straight pipe. A plurality of introduction holes 7 are distributed in an annular array around the central axis of the introduction pipe 6. The introduction holes 7 are located below the fixed pipe 502, facilitating the spraying material to enter the interior of the introduction pipe 6.

[0027] During use, different spraying materials are conveyed to the high-pressure injection gun head 9 through the feeding pipe by the feeding system. The high-pressure injection gun head 9 then injects the spraying material into the aggregate pipe 501. The spraying material enters the introduction pipe 6 through the introduction holes 7, and then enters different multi-way pipes 3 through the shunt pipe 4 for spraying. The fitting of the baffle 10 with the box body 1 makes the multi-way pipe 3 perpendicular to the box body 1, thereby improving the uniformity of the cloth material, and further changing the traditional method of only using one gun barrel for injection on one board, enabling multiple multi-way pipes 3 to inject materials into the mold cavity simultaneously, spraying the polyurethane liquid evenly on the forming board, thereby reducing the density of the heat insulation board and improving the strength of the heat insulation board, and it is possible to produce fireproof grade B1 or B2 and conventional polyurethane sandwich panels simultaneously.

[0028] The second embodiment:

[0029] Based on the first embodiment, this embodiment adds an electric turntable 11 and a stirring rod 12, and the rest is the same as the first embodiment.

[0030] Figure 6 Shown: The upper end of the aggregate pipe 501 is fixedly connected with an electric turntable 11. Those skilled in the art can select an electric turntable 11 of a suitable model according to actual needs. For example: Y200RA. The electric turntable 11 is fixedly sleeved on the outer surface of the shunt pipe 4. An annular rotating groove is drilled on the upper surface of the aggregate pipe 501. The lower end of the electric turntable 11 is fixedly connected with two stirring rods 12. The lower ends of the stirring rods 12 penetrate through the annular rotating groove and extend into the aggregate pipe 501.

[0031] During use, the electric turntable 11 rotates the stirring rods 12 in the aggregate pipe 501, thereby stirring different spraying materials and improving the uniformity of spraying.

[0032] Combined with the current actual needs, the above embodiments adopted in this application, the scope of protection is not limited to this. Within the knowledge scope of those skilled in the art, various changes made without departing from the concept of this application still fall within the protection scope of this utility model.

Claims

1. A multi-pass distributor for a B1-grade polyurethane heat insulation board intermittent production line, comprising a box (1), characterized in that: The inner bottom wall of the box body (1) is provided with a plurality of accommodating holes, the inner wall of the accommodating hole is fixedly connected with a sealing ring (2), the box body (1) is provided with a plurality of multi-way tubes (3) corresponding to the plurality of sealing rings (2), the lower end of the multi-way tube (3) passes through the sealing ring (2) and extends to the lower end of the box body (1), the lower end of the outer ring of the multi-way tube (3) is fixedly sleeved with a baffle (10), the lower ends of the plurality of multi-way tubes (3) are fixedly connected with a shunt tube (4), and the outer ring of the shunt tube (4) is fixedly sleeved with a collecting tube (5); The inner bottom wall of the collecting pipe (5) is fixedly connected with an introduction pipe (6), the upper end of the introduction pipe (6) is fixedly penetrated into the branch pipe (4), and the outer surface of the introduction pipe (6) is penetrated with a plurality of introduction holes (7), the lower end of the collecting pipe (5) is provided with a mounting block (8), the lower end of the mounting block (8) is provided with two high-pressure injection gun heads (9), the upper ends of the high-pressure injection gun heads (9) are fixedly penetrated through the mounting block (8) and the collecting pipe (5) in turn, the end of the high-pressure injection gun head (9) away from the mounting block (8) is fixedly connected with a conveying pipe, and the end of the conveying pipe away from the high-pressure injection gun head (9) is fixedly connected to the injection system.

2. A multi-pass distributor for a batch production line of B1-grade polyurethane heat insulation panels according to claim 1, characterized in that: The multi-channel pipe (3) comprises a nozzle (301) and a plurality of nozzles one (302) and two (303) fixedly connected to the outer surface of the nozzle (301), wherein the aperture of the nozzle two (303) is smaller than the aperture of the nozzle one (302), and the nozzle two (303) is located between two adjacent nozzles one (302).

3. A multi-pass distributor for a batch production line of B1-grade polyurethane heat insulation panels according to claim 2, characterized in that: The outer surface of the nozzle (301) fits with the inner annular surface of the sealing ring (2); the sealing ring (2) is made of elastic rubber material; the diameter of the baffle (10) is larger than the diameter of the sealing ring (2); the upper end of the baffle (10) fits with the lower end of the box (1).

4. The multi-pass distributor for a batch production line of B1-grade polyurethane heat insulation panels according to claim 1, characterized in that: The flow dividing pipe (4) comprises a straight pipe and a plurality of L-shaped pipes fixedly connected to the outer surface of the straight pipe, the upper end of the straight pipe is fixedly connected to the lower end of the middle multi-way pipe (3), the upper ends of the plurality of L-shaped pipes are respectively fixedly connected to the lower ends of the multi-way pipes (3) located on both sides, the straight pipe is connected to the L-shaped pipe, and the outer rings of the plurality of L-shaped pipes are fixedly mounted with electric valves.

5. A multi-pass distributor for a batch production line of B1-grade polyurethane heat insulation panels according to claim 4, characterized in that: The collecting pipe (5) comprises a collecting pipe (501) and a fixed pipe (502) fixedly penetrating the upper end of the collecting pipe (501); the fixed pipe (502) is fixedly sleeved on the outer surface of the straight pipe, and the lower end of the fixed pipe (502) does not contact the lower end of the collecting pipe (501).

6. A multi-pass distributor for a batch production line of B1-grade polyurethane heat insulation panels according to claim 5, characterized in that: The upper end of the introduction tube (6) is located inside the fixed tube (502), the outer surface of the introduction tube (6) is fixedly connected to the inner wall of the straight tube, the plurality of introduction holes (7) are distributed in a circular array around the central axis of the introduction tube (6), and the introduction holes (7) are located below the fixed tube (502).

7. The multi-pass distributor for a batch production line of B1-grade polyurethane heat insulation panels according to claim 5, characterized in that: The upper end of the collecting pipe (501) is fixedly connected to an electric turntable (11), and the electric turntable (11) is fixedly sleeved on the outer surface of the diversion pipe (4). The upper surface of the collecting pipe (501) is provided with an annular turntable groove, and the lower end of the electric turntable (11) is fixedly connected to two stirring rods (12), and the lower ends of the stirring rods (12) pass through the annular turntable groove and extend into the collecting pipe (501).

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