Buried marker post is a kind of marker post, which can be divided into: 100 meter pile, power marker post, cable marker post, corner pile, encryption pile, communication marker post, oil and gas pipeline marker post, etc. Let's talk about the production process of buried marker posts.

(1) Mixing of raw materials for buried marker posts: the resin stabilizer, antioxidant and other auxiliary materials are successively added into the high-speed mixer according to the proportion and process, the materials are heated to the set process temperature through self friction between materials and machinery, and then the materials are reduced to 50-60 degrees through the cold mixer; This allows it to be added to the extruder hopper.

(2) Extruder part of buried marker post: the machine is equipped with a quantitative feeding device to match the extrusion amount and feeding amount to ensure stable extrusion of products.

Due to the characteristics of the conical screw, the buried marker post has a large diameter in the feeding section, which is conducive to the plasticization of materials due to its large heat transfer area and shear speed for materials. The diameter of the screw in the metering section is small, which reduces the heat transfer area and shear speed for the melt, so that the melt can be extruded at a lower temperature.

When the screw rotates in the barrel, the glass fiber reinforced plastic mixture is plasticized and pushed to the head, so as to achieve compaction, melting, mixing and homogenization; The marker post shall be buried to realize the purpose of exhaust and dehydration. Feeding device and screw drive device adopt frequency conversion speed regulation, which can realize synchronous speed regulation.

(3) Extrusion die part of buried marker post: the resin after compaction, melting, mixing and homogenization, and the subsequent materials are pushed to the die head through the screw. The extrusion die head is a key component for pipe molding.

(4) The vacuum shaping water tank is used for shaping and cooling of pipes. The vacuum shaping water tank is equipped with a vacuum system and a water circulation system for shaping and cooling, a stainless steel box, and a circulating water spray cooling. The vacuum shaping water tank is equipped with a forward and backward moving device and a manual device for left and right, high and low adjustment.

(5) The tractor is used to continuously and automatically lead the cooled and hardened pipes out of the machine head, with frequency conversion for speed regulation.

(6) Buried marker post cutting machine: automatically cut after controlled by the travel switch according to the required length.

(7) The turnover action of the underground marker post turnover rack is controlled by the air cylinder through the air circuit. A limit device is erected for the turnover. When the cutting saw cuts off the pipe, the pipe continues to be transported. After the delay, the cylinder enters the work to realize the turnover action and achieve the purpose of unloading.

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