Method for making boomerang target based on target filament

Abstract

The invention discloses a preparation method of the dart target based on the target wire, which collects the drawbench level polypropylene PP and the calcium bicarbonate as the raw materials, wherein the materials are mixed and fed to the belt packing machine and made into the tabletting-shape strip by the belt packing technics, then the strip is ripped into a plurality of target wires, and the strip is cut into the target wire, and through the target wire compression, the target wire levelness, the mould arrangement, the mould composition, the mould injection, the cooling, the mould disassembly and the like, the target and the target back (namely the motherboard) are formed into an integer. The target has the advantages of simple production, low production cost, no resilience of the made dart target, easy variegation of the dart target, level surface of the dart target without polishment, integral shape of the motherboard with the target wire without the stickiness.

Description

technical field [0001] The invention relates to a dart, in particular to a method for making a dart board based on a wire. Background technique [0002] Darts is a kind of recreational sports and fitness equipment. Darts is an interesting and competitive leisure sport that is easy to carry out. Because its technology is simple and easy to master, it does not require special venues and facilities, and the amount of exercise is appropriate. It is not restricted by age and gender, and is economical and has been favored by more and more people. Participating in darts activities can not only stretch muscles and bones, eliminate fatigue, enhance people's physical coordination ability, but also hone people's will and improve psychological quality, which meets people's various entertainment requirements. [0003] The dart equipment in the prior art usually includes a dart and a dart board. The dart board is a target body for dart projection, and scoring areas are generally set on t...

AI Technical Summary

Problems solved by technology

In the existing dart board technology based on target silk, one is to use natural fiber such as hemp silk to make the dart board. Then use metal strips to compress the hemp wire ring tightly into a target plate, and the bottom end of the hemp wire is glued to the bottom plate; because the thickness of the natural fiber wire is inconsistent, there will be errors in the surface density after compression , thus affecting the use of the dartboard, although the method of weight control can also be adopted, that is, the hemp silk needed for a whole piece of target is compressed into the target surface by weight control, and the surrounding of the target is hooped with iron sheets to resist hemp. Silk tension, this weight control method will also cause large errors in the finished product due to differences in natural materials and moisture content, and the natural fiber target surface is easily affected by atmospheric humidity; on the other hand, during the production process, hemp silk is compressed After the formed target surface is bonded to the artificial base plate with glue, the target surface needs to be polished, printed and colored, resulting in complicated procedures, and the product quality cannot be guaranteed. The artificial board, glue, and grinding and printing process used are all likely to cause environmental pollution; Moreover, because the lengths of the hemp yarns are inconsistent, some of the hemp yarns that are tightly circled into the target plate will not be bonded to the bottom plate due to their short length. The hemp silk that is not bonded to the bottom plate is pulled out from the target board when the dart is pulled out, so that some areas of the target surface are loose due to the hemp silk falling off, which affects the use of the dart board

The other is to use man-made fibers such as bundles to make dartboards. During production, the polymer is usually drawn into bundles, and then the bundles are cut into certain lengths, and the bundles are wrapped by metal strips. It is tightly compressed into a target plate, and the bottom end of the bundle of wires is glued to the bottom plate; however, there are the following defects: First, the body of the bundle of wires is relatively smooth, and the dartboard made of bundles of wires is easy to project on darts. Rebound; second, it is not easy to color, this kind of bundle is difficult to absorb ink, therefore, when making the target surface scoring area, it is often impossible to use ink to achieve it, but to make the color first when making the bundle , and then put different colors in different scoring areas, and finally compressed into a target board, which greatly increases the difficulty of making the dart board, resulting in an increase in production costs