For the hot-extrusion mold of weaving loom section bar
Technical field
The present invention relates to a kind of hot-extrusion mold, especially a kind of hot-extrusion mold for weaving loom section bar.
Background technology
Along with the development of science and technology, technology is being constantly brought forth new ideas, aluminum products possess that density is little, the good characteristic of light quality, exquisite appearance, being gradually improved also because of aluminum alloy heat extrusion technique simultaneously, therefore aluminum products are widely used in various industry, wherein a aluminum product used on weaving loom, shape, outward appearance, dimensional requirement are also more and more come high, and this just has higher requirement at the Design and manufacture of hot-extrusion mold to us.
Often there is a series of cosmetic issue in this series products of current production: Surface of profile has seam line, easily produces uneven feel and shadow, section bar large unequal defect.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of hot-extrusion mold for weaving loom section bar, improving Surface of profile has seam line, embossing or shadow, section bar large unequal superficial phenomenon.
According to technical scheme provided by the invention, a kind of hot-extrusion mold for weaving loom section bar, comprises upper die and lower die, it is characterized in that: the feed end of described patrix is provided with shunting bridge, and shunting bridge is yi word pattern, and the both sides of shunting bridge are respectively equipped with tap hole; The discharge end of described shunting bridge is provided with core rod, and the both sides that core rod root corresponds to section bar are provided with the bag that blocks water; Described counterdie is provided with die cavity, and the feed end of die cavity is communicated with bonding container, and the discharge end of die cavity is communicated with discharge opening.
The discharge end of described shunting bridge protrudes and forms the wide at the top and narrow at the bottom bridge that falls.
Described upper die and lower die screw and pin close-fitting.
The nib consistent with profile shapes is formed between described core rod and die cavity.
Described upper die and lower die are connected by the seam of patrix discharge end.
The present invention has the following advantages: shunting bridge is yi word pattern, and there is seam line problem in the effective large face of section bar that solves; Core rod root arranges the bag that blocks water, and effectively solves section bar large uneven problem; Counterdie work strip drop is little, succinctly, is also conducive to improving section bar large uneven problem.
Accompanying drawing explanation
Fig. 1 is front view of the present invention.
Fig. 2 is the sectional view of Fig. 1.
Fig. 3 is the front view of patrix.
Fig. 4 is the sectional view of Fig. 3.
Fig. 5 is the front view of counterdie.
Fig. 6 is the sectional drawing for weaving loom section bar.
Detailed description of the invention
Below in conjunction with concrete accompanying drawing, the invention will be further described.
As Figure 1-Figure 5: the described hot-extrusion mold for weaving loom section bar comprises tap hole 1, shunting bridge 2, the bag 3 that blocks water, core rod 4, bridge 5, bonding container 6, die cavity 7, discharge opening 8, patrix 9, counterdie 10 etc.
As shown in Fig. 1, Fig. 2, the present invention includes patrix 9 and counterdie 10, patrix 9 and counterdie 10 screw and pin close-fitting, the feed end of described patrix 9 is provided with shunting bridge 2, and shunting bridge 2 is in yi word pattern, and the both sides of shunting bridge 2 are respectively equipped with tap hole 1; As shown in Fig. 3, Fig. 4, the discharge end of described shunting bridge 2 is provided with core rod 4, and the both sides that core rod 4 root corresponds to section bar are provided with the bag 3 that blocks water, and the discharge end of shunting bridge 2 protrudes and forms bridge 5 wide at the top and narrow at the bottom;
As shown in Figure 5, described counterdie 10 is provided with die cavity 7, and the feed end of die cavity 7 is communicated with bonding container 6, and the discharge end of die cavity 7 is communicated with discharge opening 8.
As shown in Figure 2, form the nib consistent with profile shapes between core rod 4 and die cavity 7, patrix 9 is connected with the seam of counterdie 10 by patrix 9 discharge end.
Operation principle of the present invention and the course of work: in extrusion process, metal flow, through the shunting bridge of patrix design in yi word pattern, effectively avoids large of section bar to occur seam line; Core rod root top and bottom arrange the bag that blocks water, and effectively control metal flow, make the extruding of large of section bar smooth; Counterdie work strip drop is little, succinctly, effectively improves section bar concave-convex surface print or shadow.