TWM264101U - Improved extrusion mold structure - Google Patents

Description

M264101 f、創作說明（1) 新型所屬之技術領域】M264101 f. Creation instructions (1) The technical field to which the new type belongs]

本創作係提供一種g I 良，特別是有關於一種在模：：：2螺母的嵌入方式改 I截入螺母，使嵌入螺母在塑膠二:=置夹持部，穩定夾持 稽定位詈仿銘酚—ΛΑ在』膝射出成形過程中，不致於由 預疋位置位移脫洛的模具結構改良。 _先前技術】 王座快迷、成本低廉且具有一 其電器絕緣特性，使其經常被 例如控制面板、配線盒等各式 塑膠成品有加工簡易 I定強度之優點，除此之外 |應用於各種電器用品之上 塑膠機殼。 般而吕，利用螺絲及螺孔的組合達成各種配 結合，可謂：種快逮、簡便的安全 J ： b:::直;ϊγ卜塑膠内螺紋在對二二 |力集巾，造成螺孔周圍塑膠結構出現裂紋，使整個區j; 裂 因此而有將一螺母嵌入塑膠構件表層，形成一螺孔 設計，由於嵌入螺母（Insert Nut)可利用硬度高的金= I成，而且可在射出成形過程中直接安置在螺孔預定位置， 而一體成形’不會增加過多工時以及成本，就可有效 塑膠構件螺孔強度不足的問題，因此被視為優良的解決; 案，業界亦針對嵌入螺母型態進行各種改良，在嵌入螺母This creative department provides a g I good, especially about a kind of in-mold :: 2 nut insertion method to change the I cut in the nut, so that the embedded nut in the plastic two: = set the clamping part, stable clamping inspection positioning imitation In the process of injection molding of fenol—ΛΑ, it is not possible to improve the mold structure by dislodging from the pre-position position. _Previous technology] The throne is fast-loving, low cost, and has electrical insulation characteristics, which makes it often used in various plastic products such as control panels and wiring boxes. Electrical equipment on plastic case. In general, the combination of screws and screw holes is used to achieve various combinations. It can be described as a kind of quick and easy safety J: b ::: straight; The surrounding plastic structure has cracks that make the entire area j; the cracks therefore have a nut embedded in the surface of the plastic member to form a screw hole design. Since the Insert Nut can use high hardness gold = I%, and can be injected During the forming process, it is directly placed at the predetermined position of the screw hole, and the integral molding can effectively solve the problem of insufficient strength of the screw hole of the plastic member without increasing excessive man-hours and costs. Therefore, it is regarded as an excellent solution; the industry also aims at embedding. Various modifications have been made to the nut shape.

第5頁 M264101 創作說明（2) 外部加上各式紋政弋 度，不致於發生脱Ϊ凸緣’加強螺母對塑膠構件的咬合強 二 洛空轉之現象。 塑膠機殼2表面，才1 ’由於盲孔結構僅有一開口1外露於 通孔結構在栓鎖螺絲塑f機殼2内侧端為封閉狀態’不若貫 出現與配電線路】螺絲前端有突伸至機殼2内侧，而 應用於控制面板s?=成短路或漏f的情況’因此經常被 忐、ft β由 ^ •電盒等塑膠機殼上，然而盲孔結構形 括7卜壬，地/^ ^入螺母3係直接套設於模具4内側壁面的凸 、固疋夹持機制，因此在塑膠機殼射出成形過 私中，極易受至丨丨古蔽 χ ^ 〇 同壓及快速流動的塑膠熔融液沖刷，造成 嵌入螺母3滑動# &，1 Λ # n u β /動位移如第2、3圖所示的狀態，使得射出 了 驭入螺母3遠離預定之盲孔開口 1，陷入塑膠機殼 0a 至進步造成盲孔的開口 1受到溢流塑膠熔融液封 閉。 【新型内容】 驾用塑膠模具設計上缺乏固定機構，使得嵌入螺母在 應用於J膠機设上的盲孔結構時，容易在射出成形過程中 I生位移、脫落等問題，造成盲口結構變形無法使用，因 而降低產品良率，增加生產成本。 f於以上的問題，本新型的主要目的在於提供一種模 二，=釔構，藉以避免嵌入螺母於塑膠射出成形過程中 生位移脫落，造成盲孔結構不良。 因此，為達上述目的，本新〗 ^ . 、、、口構，其包含有一模具本體、 民 设數個凸柱、複數個夾持部Page 5 M264101 Creative Instructions (2) Various types of textures are added to the outside, which will not cause the detachment of the flange ’s strong nut to the plastic component. 2 The phenomenon of lost motion. Plastic case 2 surface, only 1 'Because of the blind hole structure, there is only one opening 1 exposed to the through-hole structure. The inside end of the case 2 is closed by the latch screw plastic.' It does not appear consistently with the power distribution line.] The front end of the screw has a protrusion. To the inside of the case 2, and it is applied to the control panel s? = Short circuit or leakage f ', so it is often 忐, ft β by ^ • electric box and other plastic cases, but the blind hole structure includes 7 The ground / ^ ^ in nut 3 is a convex and solid clamping mechanism directly set on the inner wall surface of the mold 4. Therefore, it is extremely vulnerable to the ancient pressure χ ^ 〇 the same pressure and The fast-flowing plastic melt flushes, causing the embedded nut 3 to slide # &, 1 Λ # nu β / The state of dynamic displacement is shown in Figures 2 and 3, so that the nut 3 is ejected away from the predetermined blind hole opening 1 The opening 1 of the blind hole that was plunged into the plastic casing 0a to the progress is closed by the overflowing plastic melt. [New content] The lack of a fixing mechanism in the design of the driving plastic mold makes the embedded nut easy to cause problems such as displacement and shedding during the injection molding process when it is used in the blind hole structure of the J rubber machine, which causes deformation of the blind mouth structure. Unusable, thus reducing product yield and increasing production costs. f. In view of the above problems, the main purpose of the new model is to provide a mold with a yttrium structure, so as to prevent the embedded nut from dislodging during the plastic injection molding process, which causes the blind hole structure to be defective. Therefore, in order to achieve the above-mentioned purpose, the new structure ^. ,,,, and the mouth structure includes a mold body, a plurality of convex columns, and a plurality of clamping portions.

第6頁 M264101Page 6 M264101

四、創作說明（3) 及複數肷入螺母’該複數個凸柱及失持部係配合該複數個 嵌入螺母之數目、型態、尺寸及位置而設置，其中：該模 具本體内具有一腔室，用以供塑膠液注入其中，形成預定 之態樣；該凸柱凸設於該腔室之内璧，其^端呈開放狀 態’未與腔室壁面或其他凸設於腔室壁面之結構接觸，使 得該模具進行射出成形後，在塑膠成品上相對應於該凸柱 之位置，形成一具有一開口但未貫通塑膠成品之盲孔；該 嵌入螺母具有一頂面、一底面及一螺孔，該螺孔之内徑恰 可匹配該凸柱之外徑，使該螺母以該螺孔套設於該凸柱， 並以該頂面抵貼於該腔室之壁面；該夾持部係凸設於該凸 柱基部周遭之壁面，其恰可夾持該螺母之頂面週緣，使螺 母在射出成形過程中，確實抵貼於腔室壁面，不致位移脫 洛’提南盲孔加工良率。 為使對本發明的目的、構造、特徵、及其功能有進一 步的瞭解，茲配合實施例詳細說明如下。 【實施方式】 請參閱第4至第7圖所示，本創作第一較佳實施例所提 供一種模具結構改良，用以供一塑膠機殼1 0的射出成形作 業使用，並於該塑膠機殼丨〇上形成一盲孔結構1卜該模具 結構改良100包含有一模具本體20，該本體20内具有一腔 室21’該腔室21内壁於預定設置該盲孔結構11之位置’凸 没有一凸柱22，該凸柱2 2之末端呈現開放狀態’不與該腔 室2 1内其他部位接觸，該凸柱基部之周圍設置有一夾持部 23，當塑膠熔融液注入該腔室21後，充滿該腔室内部而留4. Creation instructions (3) and plural insert nuts' The plurality of protruding posts and misfits are arranged in accordance with the number, type, size and position of the plurality of embedded nuts, wherein: the mold body has a cavity The chamber is used for the injection of plastic liquid into it to form a predetermined state; the convex column is convexly arranged inside the chamber, and the ^ end thereof is in an open state; Structural contact, so that after the mold is injection-molded, a blind hole having an opening but not penetrating the plastic product is formed on the plastic product corresponding to the position of the convex post; the embedded nut has a top surface, a bottom surface and a A screw hole whose inner diameter can exactly match the outer diameter of the convex column, so that the nut is sleeved on the convex column with the screw hole and abuts against the wall surface of the chamber with the top surface; the clamping The part is convexly arranged on the wall surface around the base of the convex column, which can just clamp the peripheral edge of the top surface of the nut, so that the nut does not abut against the wall surface of the cavity during the injection molding process, and will not cause displacement Processing yield. In order to further understand the purpose, structure, features, and functions of the present invention, the following detailed description is given in conjunction with the embodiments. [Embodiment] Please refer to FIG. 4 to FIG. 7. The first preferred embodiment of the present invention provides a mold structure improvement for use in injection molding operation of a plastic casing 10 and used in the plastic machine. A blind hole structure is formed on the shell. The mold structure improvement 100 includes a mold body 20. The body 20 has a cavity 21 '. The inner wall of the cavity 21 is convex at the position where the blind hole structure 11 is to be arranged. A convex post 22, the end of the convex post 22 is in an open state 'does not contact with other parts in the chamber 21, and a clamping part 23 is set around the base of the convex post. When a plastic melt is injected into the chamber 21 After filling the interior of the chamber and staying

M264101M264101

下凸柱22所在位置未填充，使塑膠射出成形作業完成後， 相對應於該凸柱22所在的位置’形成—在該塑膠機殼1〇上 形成該盲孔11 ’ 一般而言，塑膠射出成品如配線盒或控制 面板喊體多為薄殼體，若以貫通孔做為螺絲栓鎖，穿透機 殼的螺絲前端極易與機殼内部電氣線路接觸造成短路，因 此利用盲孔設計做為螺絲栓鎖孔，此時由盲孔封閉端側的 盲孔結構1卜會形成一突出於殼體1 〇内側面的柱體，盲孔 則位於柱體内’使該殼體可栓鎖長度較長的螺絲，而不至 於使螺絲接觸殼體之電器線路。 一嵌入螺母30，具有一開放端31、一嵌入端3 2及一螺 孔33，該螺母30係以該螺孔33套設於該凸柱22，並以該開 玫端3 1抵貼於該腔室2 1之壁面，藉以在塑膠射出成品完成 時’在該盲孔内形成一内螺紋結構，供一螺絲鎖入，由於 該嵌入螺母3 0係以金屬或其他硬度高於塑膠硬度的材質所 製成’在鎖入或卸下螺絲過程中，有較佳的強度抵抗外力 磨損破壞。 該夾持部2 3，凸設於該凸柱2 2基部之周圍，概呈一環 狀突塊結構，環繞該凸柱2 2之基部，該夾持部2 3之内徑恰 可匹配該嵌入螺母3 0開放端之外徑，以穩固夾持該嵌入螺 母30使其緊貼於該腔室2 1之壁面，藉以，當該塑膠射出程 序進行過程中，高溫高壓的熔融塑膠液經由一射出機注入 该模具之腔室2 1流動，快速流動的塑膠液受到夾持部2 3的 随擋’不會流入該嵌入螺母3 0與該腔室2 1間的接觸面，使 該盲孔1 2之開口不受溢流塑膠液堵塞，且該嵌入螺母3 〇受The position of the lower convex pillar 22 is not filled, so that after the plastic injection molding operation is completed, the position corresponding to the convex pillar 22 is 'formed—the blind hole 11 is formed in the plastic casing 10'. In general, plastic injection The finished products such as wiring boxes or control panels are mostly thin shells. If the through hole is used as the screw lock, the front end of the screw penetrating the case is likely to contact the internal electrical circuits of the case and cause a short circuit. Therefore, the blind hole design is used to make It is a screw bolt lock hole. At this time, the blind hole structure 1 closed at the end side by a blind hole will form a cylinder protruding from the inner side of the casing 10, and the blind hole is located inside the cylinder, so that the casing can be locked. Longer screws that do not allow the screws to contact the electrical wiring of the housing. An embedded nut 30 has an open end 31, an embedded end 32, and a screw hole 33. The nut 30 is sleeved on the protruding post 22 with the screw hole 33, and is abutted against the open end 31. The wall surface of the chamber 21 is used to form an internal thread structure in the blind hole when a plastic injection finished product is completed, for a screw to lock in. Since the embedded nut 30 is made of metal or other material having a hardness higher than that of plastic, Made of material 'in the process of locking or removing the screw, it has better strength to resist external wear and tear. The clamping portion 23 is protruded around the base of the protruding column 22, and has a ring-shaped protrusion structure surrounding the base of the protruding column 22. The inner diameter of the clamping portion 23 can match the The outer diameter of the open end of the embedding nut 30 is used to firmly hold the embedding nut 30 so as to abut the wall surface of the chamber 21, so that when the plastic injection process is performed, the high temperature and high pressure molten plastic liquid passes through a The injection machine flows into the cavity 21 of the mold, and the fast-flowing plastic liquid is blocked by the clamping portion 23 and will not flow into the contact surface between the embedded nut 30 and the cavity 21, so that the blind hole The opening of 1 2 is not blocked by the overflowing plastic fluid, and the embedded nut 3 〇

第8頁 M264101Page 8 M264101

刷移動位移，使嵌 ’確保該盲孔1 2結 四、創作說明（5) 到該夾持部2 3穩固爽持，亦不會受到沖 入螺母3 0確實的固定於預定喪入之位置 構不致變形。 本創作之夾持部23除了環狀凸塊之設計之外，亦可利 用若干不連續凸塊進行環狀排列，使其等恰可頂持於該嵌 入螺母3 0開放端之週緣，如第8圖及第9圖所示，利用凸塊 沿該喪入螺母3 0開放端週緣排列形成夾持部2 3，以穩固夾 持該喪入螺母3 0。Move the brush to make sure that the blind hole 12 is knotted. 4. The creative instructions (5) are firmly and hold to the clamping portion 23, and will not be fixed by the punching nut 30. Structure will not deform. In addition to the design of the annular bumps, the clamping portion 23 of this creation can also use a number of discontinuous bumps to perform a circular arrangement so that they can just support the periphery of the open end of the embedded nut 30, as As shown in FIG. 8 and FIG. 9, a clamping portion 23 is formed along the periphery of the open end of the lost nut 30 by using a bump to stably hold the lost nut 30.

本創作之模具結構改良，係針對模具開模設計進行改 良，不涉及螺母結構變更及射出成形程序之改變，藉由模 具變化’形成夾持螺母的失持部，不用額外加裝固定夾具 或改變螺母形式，也不需要特殊設計之射出機械，可廣泛 應用現有嵌入螺母及射出成形機1，保有傳統射出成形成 本低廉、生產快速之特點。The improvement of the mold structure of this creation is to improve the mold opening design. It does not involve changes in the structure of the nut and changes in the injection molding process. Through the change of the mold, a lost part holding the nut is formed, without additional fixing fixtures or changes. In the form of a nut, there is no need for a specially designed injection machine. Existing embedded nuts and injection molding machines 1 can be widely used, maintaining the traditional injection molding with low cost and fast production.

M264101 圖式簡單說明 【圖式簡單說明】 第1圖為習用盲孔結構剖面示意圖。 第2圖為習用模具剖面。 第3圖為習用盲孔結構剖面示意圖，揭示該嵌入螺母滑動 位移後之狀態。 第4圖為本創作較佳實施例之嵌入螺母立體圖。 第5圖為本創作較佳實施例之模具剖面示意圖。 第6圖為本創作較佳實施例所形成之盲孔結構剖面示意 圖。 第7圖為本創作較佳實施例夾持部之俯視圖。 第8圖為第7圖之另一實施態樣。 第9圖為第7圖之另一實施態樣。 【主要元件符號說明】 「習用模具」 開口 1 塑膠機殼2 彼入螺母3 模具4 凸柱5 「較佳實施例」 塑膠機殼10 盲孔11 本體20 腔室21M264101 Schematic description [Schematic description] Figure 1 is a schematic cross-sectional view of a conventional blind hole structure. Figure 2 is a section of a conventional mold. Figure 3 is a schematic cross-sectional view of a conventional blind hole structure, revealing the state of the embedded nut after sliding displacement. FIG. 4 is a perspective view of an embedded nut according to a preferred embodiment of the present invention. FIG. 5 is a schematic cross-sectional view of a mold according to a preferred embodiment of the present invention. Fig. 6 is a schematic cross-sectional view of a blind hole structure formed by a preferred embodiment of the creation. FIG. 7 is a top view of the clamping portion of the preferred embodiment of the creation. FIG. 8 is another embodiment of FIG. 7. FIG. 9 is another embodiment of FIG. 7. [Explanation of Symbols of Main Components] "Custom mold" Opening 1 Plastic casing 2 Penetration nut 3 Mold 4 Projecting post 5 "Preferred embodiment" Plastic casing 10 Blind hole 11 Body 20 Cavity 21

第10頁 M264101 圖式簡單說明 凸柱22 夾持部2 3 嵌入螺母3 0 開放端3 1 嵌入端32 螺孔3 3Page 10 M264101 Simple illustration of the drawing Post 22 Clamping part 2 3 Insert nut 3 0 Open end 3 1 Insert end 32 Screw hole 3 3

第11頁Page 11

Claims (1)

M264101 五、申請專利範圍 1. 一種模具結構改良，其中該模具包含有一本體，該 本體内部具有一腔室，該腔室之内壁上，於預定設置盲孔 之位置，凸設有一凸柱，一嵌入螺母，具有一開放端、一 後入端及一螺孔，該後入螺母係以該螺孔套設於該凸柱， 並以該開放端抵貼該腔室壁面； 其特徵在於，該腔室之壁面上還包含有若干夾持部， 設置於該凸柱基部之週緣，用以夾持該嵌入螺母開放端之 週緣，藉以當塑膠射出成形過程中，可穩固地夾持該嵌入 螺母，使該嵌入螺母確實抵貼該腔室壁面而不發生位移脫 落。 2 .依據申請專利範圍第1項所述之一種模具結構改 良，其中該凸柱之外徑恰可匹配該螺母之内徑。 3 .依據申請專利範圍第1項所述之一種模具結構改 良，其中該夾持部係為一環狀凸塊，環繞該凸柱之基部， 其内徑恰可匹配該嵌入螺母開端之外徑，以夾持該嵌入螺 母 ° 4.依據申請專利範圍第1項所述之一種模具結構改 良，其中該夾持部係為若干凸塊，設置於該凸柱基部之週 緣，其可夾持於該嵌入螺母開放端之週緣。M264101 V. Application for Patent Scope 1. An improvement in the mold structure, wherein the mold includes a body having a cavity inside the cavity, and a convex post is provided on the inner wall of the cavity at a position where a blind hole is intended to be provided. The embedded nut has an open end, a rear entry end and a screw hole. The rear entry nut is sleeved on the convex post with the screw hole, and abuts against the wall surface of the chamber with the open end; The wall surface of the chamber also includes a plurality of clamping portions, which are arranged on the peripheral edge of the base of the protruding column to clamp the peripheral edge of the open end of the insert nut, so that the insert nut can be firmly clamped during the injection molding process of the plastic So that the embedded nut does abut against the wall surface of the chamber without displacement and falling off. 2. According to a mold structure improvement described in item 1 of the scope of patent application, wherein the outer diameter of the protruding column can just match the inner diameter of the nut. 3. An improvement in the mold structure according to item 1 of the scope of the patent application, wherein the clamping portion is a ring-shaped projection surrounding the base of the projection, and its inner diameter can exactly match the outer diameter of the opening end of the insert nut. In order to clamp the embedded nut ° 4. According to a mold structure improvement described in item 1 of the scope of the patent application, wherein the clamping portion is a plurality of bumps, which are arranged at the periphery of the base of the protruding column, which can be clamped at The periphery of the open end of the insert nut. 第12頁Page 12