{"id":2481,"date":"2026-08-09T12:23:25","date_gmt":"2026-08-09T12:23:25","guid":{"rendered":"https:\/\/cndlfh.com\/2481\/"},"modified":"2026-08-09T12:23:25","modified_gmt":"2026-08-09T12:23:25","slug":"%e7%ba%bf%e5%88%87%e5%89%b2%e6%9c%ba%e5%ba%8a%e5%8d%8a%e8%87%aa%e5%8a%a8%e7%a9%bf%e4%b8%9d%e8%a3%85%e7%bd%ae%e5%88%b6%e9%80%a0%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/cndlfh.com\/en\/2481\/","title":{"rendered":"Method for Manufacturing a Semi-Automatic Wire-Threading Device for Wire-Cut Machining Centres"},"content":{"rendered":"<p style='margin-bottom:24px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>Technical Brief:<\/p>\n<p style='margin-bottom:24px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>This patent addresses the challenges of time-consuming manual wire threading and the tendency for molybdenum wire to jam in wire-cutting machines by proposing a semi-automatic wire-threading device. An air inlet and air duct are positioned at the threading tube; the airflow suspends the molybdenum wire and propels it forward, thereby achieving rapid threading. The device is also fitted with a wire threader featuring a tapered opening, thereby enhancing ease of operation and significantly improving threading efficiency and the level of automation.<\/p>\n<p style='margin-bottom:24px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>Keywords: semi-automatic wire-feeding device, air inlet, molybdenum wire suspension<\/p>\n<p style='margin-bottom:24px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>Method for Manufacturing a Semi-Automatic Wire-Threading Device for Wire-Cut Machining Centres<\/p>\n<p style='margin-bottom:24px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>The molybdenum wire for wire-cut EDM disclosed in this invention forms part of a semi-automatic wire-threading device for a wire-cut EDM machine. This device comprises a mounting box and features a movable pulley associated with a first fixed pulley, a second fixed pulley, a third fixed pulley and a fourth fixed pulley, and connected to the first fixed pulley. In addition to incorporating the aforementioned specific structure, the mounting box is fixedly connected to the four fixed pulley assemblies mentioned above. The path of the molybdenum wire for wire-cut EDM is as follows: first, it passes through the first fixed pulley; next, it passes through the second fixed pulley, then the third fixed pulley, followed by the movable pulley; and finally, it passes through the fourth fixed pulley. This semi-automatic wire-threading device for wire-cut EDM machines is the subject of the present invention. It has the advantage of being equipped with an air inlet; once the molybdenum wire enters the threading tube, this keeps the wire in a suspended state and also provides a certain degree of propulsion, thereby making the threading process extremely convenient and rapid.<\/p>\n<p style='margin-bottom:24px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>[Patent Description] Semi-automatic wire-threading device for wire-cut EDM machines<\/p>\n<p style='margin-bottom:24px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>[Technical field]<\/p>\n<p style='margin-bottom:24px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>The present invention relates to a device, namely a semi-automatic wire-threading device; more specifically, a semi-automatic wire-threading device for a wire-cut EDM machine.<\/p>\n<p style='margin-bottom:24px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>[Background technology]<\/p>\n<p style='margin-bottom:24px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>When a wire-cut EDM machine is in operation, a wire-threading device is required to feed the cutting wire to the machine head. However, in current practice, threading on wire-cut EDM machines is carried out manually; as the cutting wire is soft, this process is extremely time-consuming.<\/p>\n<p style='margin-bottom:24px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>[Contents of invention]<\/p>\n<p style='margin-bottom:24px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>This semi-automatic wire-threading device for wire-cut EDM machines is primarily designed to address technical issues present in existing technologies. It is fitted with an air inlet which, once the wire enters the threading tube, keeps the wire suspended and provides a gentle pushing force, making the threading process quick and easy.<\/p>\n<p style='margin-bottom:24px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'><img decoding=\"async\" style='max-height:800px;max-width:80%;margin: 10px auto' src=\"\/wp-content\/uploads\/2026\/08\/1786278200962_0.jpg\" alt=\"\u7ebf\u5207\u5272\u673a\u5e8a\u534a\u81ea\u52a8\u7a7f\u4e1d\u88c5\u7f6e_\u7ebf\u5207\u5272\u52a0\u5de5\u81ea\u52a8\u7a7f\u4e1d\u6280\u672f_\u8fdb\u6c14\u53e3\u8bbe\u8ba1\" \/><\/p>\n<p style='margin-bottom:24px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>The technical problems of the present invention are solved primarily by means of the following technical solution: A semi-automatic wire-threading device for a wire-cut EDM machine, comprising a wire-threading tube provided with an air inlet, with an air intake pipe mounted on the wire-threading tube, the air intake pipe being connected to the wire-threading tube via a curved transition.<\/p>\n<p style='margin-bottom:24px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>As a particularly good example of an embodiment of the present invention, the semi-automatic wire-threading device for a wire-cut EDM machine described herein comprises a threading tool, which is connected to the air inlet by means of a threaded connection.<\/p>\n<p style='margin-bottom:24px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>In the preferred embodiment of the present invention, the end of the threading device is provided with a conical auxiliary thread-feeding orifice, and the side of the threading device features a screw-tightening surface.<\/p>\n<p style='margin-bottom:24px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>The semi-automatic wire-threading device for wire-cut EDM machines proposed by the present invention has the advantage that it is equipped with an air inlet; once the wire enters the threading tube, this not only keeps the wire suspended but also provides a certain degree of thrust to the wire, thereby making the threading process extremely convenient and rapid.<\/p>\n<p style='margin-bottom:24px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>[Patent Attachment]<\/p>\n<p style='margin-bottom:24px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>[Illustration]<\/p>\n<p style='margin-bottom:24px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>In order to explain the technical solutions of the embodiments of the present invention, or those of the prior art, more clearly, a brief introduction will follow regarding the drawings required for the description of the embodiments or the prior art. It is evident that the drawings described below merely illustrate some embodiments of the present invention. A person skilled in the art would be able to derive other drawings from these drawings without involving any inventive step.<\/p>\n<p style='margin-bottom:24px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>Figure 1 shows a schematic structural diagram of the three-dimensional model of the semi-automatic wire-threading device for the wire-cut EDM machine of the present invention; Figure 2 shows a schematic structural diagram of the three-dimensional model of the wire-threading tube of the semi-automatic wire-threading device for the wire-cut EDM machine shown in Figure 1; Figure 3 provides a schematic cross-sectional view of the wire-threading tube shown in Figure 2; Figure 4 shows a schematic structural diagram of the wire-threading device shown in Figure 1; Figure 5 displays a schematic cross-sectional view of the wire-threading device shown in Figure 4; comprising: 1, threading tube; 11, air inlet; 12, air inlet pipe; 2, threading device; 21, conical auxiliary threading port; 22, screw-tightening auxiliary surface.<\/p>\n<p style='margin-bottom:24px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>[Specific implementation modalities]<\/p>\n<p style='margin-bottom:24px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>With reference to the accompanying drawings, a detailed description of preferred embodiments of the present invention is provided, the purpose of which is to enable those skilled in the art to more readily appreciate the advantages and features of the present invention, and thereby to define the scope of protection of the present invention more clearly and precisely.<\/p>\n<p style='margin-bottom:24px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>The advantage of the semi-automatic wire-threading device for wire-cut EDM machines according to the present invention is that it is fitted with an air inlet; once the wire enters the threading tube, this keeps the wire suspended whilst also providing a gentle pushing force, making the threading process extremely convenient and quick.<\/p>\n<p style='margin-bottom:24px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>As shown in Figure 1, there is a semi-automatic thread-threading device for a wire-cut EDM machine, comprising a threading tube 1. This threading tube 1 is provided with an air inlet 11, and an air supply pipe 12 is fitted to the threading tube 1; the air supply pipe 12 is connected to the threading tube 1 via a curved transition, The air inlet 11 is connected to an external air source or air pump, Once the wire-cutting wire enters the threading tube, under the combined action of the thrust and buoyancy of the gas, the relatively soft wire-cutting wire can pass through the threading tube 1 with great ease, as can be seen in Figure 2.<\/p>\n<p style='margin-bottom:24px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'><img decoding=\"async\" style='max-height:800px;max-width:80%;margin: 10px auto' src=\"\/wp-content\/uploads\/2026\/08\/1786278200962_1.jpg\" alt=\"\u7ebf\u5207\u5272\u673a\u5e8a\u534a\u81ea\u52a8\u7a7f\u4e1d\u88c5\u7f6e_\u8fdb\u6c14\u53e3\u8bbe\u8ba1_\u7ebf\u5207\u5272\u52a0\u5de5\u81ea\u52a8\u7a7f\u4e1d\u6280\u672f\" \/><\/p>\n<p style='margin-bottom:24px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>As shown in Figure 1, the semi-automatic wire-threading device of this wire-cut EDM machine comprises a wire threader 2. As shown in Figure 4, when this threading device 2 is connected to the inlet 11 via a threaded connection, the configuration of the threading device 2 allows the wire to be fed through the wire-cutting machine, using the aforementioned inlet 11 as a passage, thereby facilitating its entry into the threading tube 11.<\/p>\n<p style='margin-bottom:24px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>This is Figure 1. The end of the threading tool 2 is fitted with a conical auxiliary threading port 21. This is Figure 4. This is Figure 5. The conical auxiliary threading port 21 makes it easier for the operator to thread the wire, The side of the threading tool 2 features a tightening surface 22, which enables the user to securely connect the threading tool to the threading tube.<\/p>\n<p style='margin-bottom:24px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>The following serves merely to illustrate the design concept of the present invention through one embodiment; where system constraints permit, the present invention may be extended to connect to a greater number of functional modules simultaneously, thereby maximising its functionality.<\/p>\n<p style='margin-bottom:24px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>The situations described above relate merely to the [specific embodiments] of the present invention; however, the scope of protection of the present invention is by no means limited to these. Any variations or substitutions conceived without creative effort should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.<\/p>\n<p style='margin-bottom:24px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>[Claims]<\/p>\n<p style='margin-bottom:24px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>1. There is a semi-automatic wire-threading device for a wire-cut EDM machine, comprising a wire-threading tube (1), this thread-threading tube (1) has an air inlet (11); its characteristic lies in the fact that an air supply tube (12) is fitted to the thread-threading tube (1), and this air supply tube (12) is connected to the thread-threading tube (1) via a circular arc transition.<\/p>\n<p style='margin-bottom:24px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>2. The semi-automatic wire-threading device for a wire-cut EDM machine as described in claim 1 is characterised in that the semi-automatic wire-threading device for a wire-cut EDM machine further comprises a threading tool (2), which is connected to the inlet (11) by means of a threaded connection.<\/p>\n<p style='margin-bottom:24px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>3. The semi-automatic thread-threading device for the wire-cut EDM machine, as described in claim 2, is characterised in that the end of the threader (2) is provided with a conical auxiliary thread-feeding orifice (21), and the side of the threader (2) has a screw-tightening surface (22).<\/p>\n<p style='margin-bottom:24px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>[Document No.] B23H7\/<\/p>\n<p style='margin-bottom:24px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>The publication date is 29 October 2014; the filing date is 27 April 2013; and the priority date is 27 April 2013.<\/p>\n<p style='margin-bottom:24px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>[Inventor] Li Yunfei Applicant: Li Yunfei<\/p>","protected":false},"excerpt":{"rendered":"<p>Technical Overview: This patent proposes a semi-automatic wire-threading device to address the issues of time-consuming manual threading and the tendency of molybdenum wire to become jammed in wire-cutting machines. By fitting the threading tube with an air inlet and an air supply tube, the device utilises a stream of air to suspend and propel the molybdenum wire, thereby enabling rapid threading.<\/p>","protected":false},"author":1,"featured_media":2482,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[26],"tags":[574,1686,1688,1685,1687],"class_list":["post-2481","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-26","tag-574","tag-1686","tag-1688","tag-1685","tag-1687"],"_links":{"self":[{"href":"https:\/\/cndlfh.com\/en\/wp-json\/wp\/v2\/posts\/2481","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cndlfh.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cndlfh.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cndlfh.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/cndlfh.com\/en\/wp-json\/wp\/v2\/comments?post=2481"}],"version-history":[{"count":0,"href":"https:\/\/cndlfh.com\/en\/wp-json\/wp\/v2\/posts\/2481\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cndlfh.com\/en\/wp-json\/wp\/v2\/media\/2482"}],"wp:attachment":[{"href":"https:\/\/cndlfh.com\/en\/wp-json\/wp\/v2\/media?parent=2481"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cndlfh.com\/en\/wp-json\/wp\/v2\/categories?post=2481"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cndlfh.com\/en\/wp-json\/wp\/v2\/tags?post=2481"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}