A cold feed preforming machine

Abstract

The invention discloses a cold feeding preforming machine. The cold feeding preforming machine comprises a machine barrel, a screw rod, a stirring unit and a feeding unit, wherein the machine barrel is hollow inside, and a forming mold is arranged at the front end of the machine barrel; the screw rod is arranged in the machine barrel and used for extruding a rubber raw material to the forming mold; the stirring unit is arranged on the machine barrel and is matched with the screw rod for stirring the rubber raw material; and the feeding unit is arranged at the rear end of the machine barrel and is communicated with the inside of the machine barrel. The cold feeding preforming machine can solve the stirring problem of the material in a transportation process and can continuously and reliably extrude to form the raw material, the stirred material is not required to be added into the machine barrel by a worker timely, and the cold feeding preforming machine is time-saving and labor-saving.

Description

technical field [0001] The invention relates to the field of rubber processing and molding, in particular to a cold feed preforming machine. Background technique [0002] At present, enterprises that produce rubber products use a hydraulic rubber molding machine when molding rubber. This hydraulic rubber molding machine needs to stir the rubber raw materials first, and then put the stirred raw materials into the barrel. Then it is extruded by the hydraulic cylinder to extrude the raw material from the head of the barrel. However, the rubber molding machine is troublesome when used. The stirring device is separated from the molding device, and manual feeding is required. Generally, after a certain period of production, It is time-consuming and labor-intensive for workers to open the barrel for feeding, which greatly increases the labor cost, and cannot work continuously, and the extrusion rate of the hydraulic rubber molding machine is unstable. As the raw materials in the ba...

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Problems solved by technology

[0002] At present, enterprises that produce rubber products use a hydraulic rubber molding machine when molding rubber. This hydraulic rubber molding machine needs to stir the rubber raw materials first, and then put the stirred raw materials into the barrel. Then it is extruded by the hydraulic cylinder to extrude the raw material from the head of the barrel. However, the rubber molding machine is troublesome when used. The stirring device is separated from the molding device, and manual feeding is required. Generally, after a certain period of production, It is time-consuming and labor-intensive for workers to open the barrel for feeding, which greatly increases the labor cost, and cannot work continuously, and the extrusion rate of the hydraulic rubber molding machine is unstable. As the raw materials in the barrel decrease, its extrusion The output rate becomes larger, so there are huge defects in production accuracy and raw material utilization

[0003] Application No. 201010157681.4 of the Chinese patent "Rubber Spiral Mesh Cold Feed Extruder" includes a frame on which the barrel of the plasticizing section, the barrel of the feeding section, the feeding device and the variable speed drive device are installed in sequence. The motor, the extrusion screw pass through the barrel of the plasticizing section and the barrel of the feeding section and are connected to the variable speed drive device. The feeding device is a screw meshing feeding device, and the screw meshing feeding device is connected to the feeding section through fasteners On one side of the barrel, the screw meshing feeding device includes a helical roller installed in the support. The surface of the helical roller is provided with a helical roller thread corresponding to the thread lead or pitch of the screw in the barrel of the feeding section. The thread direction of the helical roller is the same as the The thread direction of the screw in the barrel of the feeding section is opposite; but this patent still fails to solve the problem of stirring the material during transportation, so the raw material cannot be extruded continuously and reliably, and workers need to add the stirred raw material into the machine regularly In the cylinder, it is time-consuming and labor-intensive

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