Portable heating-type polyurethane foaming machine
A foaming machine and heating technology, applied in the field of foaming, can solve the problems of large power consumption, increased volume, and more useless work
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Embodiment 1
[0018] like figure 1 As shown, the schematic diagram of the working principle of the portable and heated polyurethane foaming machine includes a walking device, a feed heating device (including a feed heating device 300 and a feed heating device 400, which are used to heat raw material B and raw material A respectively), two-way Cylinder and upper pressurized cylinder group 100 and lower pressurized cylinder group 200, described upper pressurized cylinder group 100 and lower pressurized cylinder group 200 are respectively connected with two power output ends of two-way cylinder, and described feed heating device is connected with The feed ports of the upper pressurized cylinder group 100 and the lower pressurized cylinder group 200 are connected.
[0019] Polyurethane raw materials are generally divided into two components: raw material A component (black material) isocyanate - polyphenyl polymethylene polyisocyanate. Raw material B component (white material) is combined with...
Embodiment 2
[0022] like figure 2 Shown is a schematic structural view of the feed heating device (taking the feed heating device 300 as an example), including a double-wire square spiral heating tube 301, a feeding tube 302, an insulation layer 303, a power interface 304, a feed port 305, a discharge Mouth 306; feed pipe 302 selects PPR pipe for use, and surrounds and arranges up and down in the feed heating device. The double-wire square spiral heating tube 301 is arranged circularly around the feeding pipe 302. The double-wire square spiral heating tube 301 is made of a copper tube shell. The inside of the double-wire square spiral heating tube 301 is provided with a resistance wire, and the external power supply interface 304 is connected to the power supply to provide electric energy. heating.
[0023] In order to make the heating uniform and lasting, the feed heating device is filled with saturated brine, because the brine has a low freezing point and is not easy to freeze. In add...
Embodiment 3
[0026] like image 3 Shown is a schematic structural view of the pressurized cylinder, including a piston rod 107 , a feed chamber 111 , a feed check valve 103 , a feed inlet 102 , a pressurized check valve 104 , a discharge chamber 110 , and a feed outlet 109 . The working principle of this booster cylinder is: two-way cylinder 14 (see Figure 4 ) power is output to the piston rod 107 through the extension shaft 10, thereby driving the piston rod 107 to reciprocate up and down. Driven by the two-way cylinder 14, when the piston rod 107 moves upward, the feed chamber 111 forms a vacuum and generates negative pressure. When the negative pressure reaches a certain level, the feed check valve 103 is opened by the negative pressure, and the raw material is discharged Port 102 sucks into feed chamber 111 . Since the spring force of the pressurized one-way valve 104 is relatively large, the raw material will not flow into the discharge chamber 110 through the pressurized one-way v...
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