A pouring head for pu material
A PU material and pouring head technology, applied in the field of PU material pouring, can solve the problems of affecting the flow rate, low production efficiency, complex pouring equipment structure, etc., and achieve the effect of improving operating efficiency and convenient disassembly and cleaning
Active Publication Date: 2019-09-20
浙江海峰自动化设备有限公司
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Problems solved by technology
[0003] The existing pouring equipment has a complex structure, is not easy to disassemble and assemble, and is made of metal materials such as stainless steel
During the use of the product, the PU material is easily bonded to the inner wall of the pouring equipment, which affects the pouring quality; it needs to be shut down and cleaned continuously during use, and the production efficiency is low; moreover, the PU material bonded to the inner wall of the pouring equipment sticks The knot is tight and difficult to remove; after multiple injections, use solvent and air flushing to clean, the inner wall gap becomes smaller, which affects the flow rate, causes bubbles in the product, and affects product quality
Method used
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Embodiment Construction
[0030] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0031] Pouring equipment / pouring head such as figure 1 , figure 2 As shown, a plurality of bearings 11 are arranged in the bearing seat 1 on the upper part of the pouring head. A sealing device 12 is provided at the end of the seal, and the sealing device 12 can adopt the technology in the inventor's previous patents 201410244757.5 and 201420293401.6. The bearing seat 1 is fixed on the connection plate 3 , the sealing device 12 at the bottom of the bearing seat 1 passes through the connection plate 3 , and the main shaft 2 extends into the mixing chamber 4 arranged below the connection plate 3 . The mixing chamber 4 is connected with a cylinder 41, a feed valve 42, a needle valve 43, a purge valve 44, a return pressure regulating valve 45, etc. Various PU raw materials are injected into the mixing chamber 4 through one or more material interfaces, and th...
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Abstract
The invention discloses a pouring head for PU materials. The pouring head comprises a main shaft, a bearing base, a connecting disc, a mixing chamber, a sleeve and a material nozzle. The inner wall of the side wall of the sleeve which is in contact with raw pouring materials and the inner layer of the material nozzle are formed by PP materials or PE materials, or a PP coating or a PE coating is arranged on the side surface, toward a stirring space, of the inner wall of the side wall of the sleeve which is in contact with raw pouring materials and the inner layer of the material nozzle. A pouring device can rub for a longer time. Under the condition that novel materials of the PU (polyurethane) raw materials are used, the pouring head with a PP or PE material can also normally run after materials are poured 600 times, and the running efficiency is increased by three times or above.
Description
technical field [0001] The invention relates to the technical field of PU (polyurethane) material pouring, in particular to a pouring head for PU (polyurethane) material. Background technique [0002] In the PU (polyurethane) material pouring process, it is necessary to use pouring equipment to pour PU foam materials into the model, and obtain corresponding PU products after foaming in the model. [0003] The existing pouring equipment has a complex structure, is inconvenient to disassemble and assemble, and is made of metal materials such as stainless steel. During the use of the product, the PU material is easily bonded to the inner wall of the pouring equipment, which affects the pouring quality; it needs to be shut down and cleaned continuously during use, and the production efficiency is low; moreover, the PU material bonded to the inner wall of the pouring equipment sticks The knot is tight and difficult to remove; after multiple injections, use solvent and air flushi...
Claims
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IPC IPC(8): B29C44/36
Inventor 戴元海翁成武
Owner 浙江海峰自动化设备有限公司