TWM297937U - Material delivery structure of processing machine - Google Patents

Material delivery structure of processing machine Download PDF

Info

Publication number
TWM297937U
TWM297937U TW95204828U TW95204828U TWM297937U TW M297937 U TWM297937 U TW M297937U TW 95204828 U TW95204828 U TW 95204828U TW 95204828 U TW95204828 U TW 95204828U TW M297937 U TWM297937 U TW M297937U
Authority
TW
Taiwan
Prior art keywords
workpiece
plate
processing machine
sides
scope
Prior art date
Application number
TW95204828U
Other languages
Chinese (zh)
Inventor
Wei-Kai Feng
Original Assignee
Wei-Kai Feng
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wei-Kai Feng filed Critical Wei-Kai Feng
Priority to TW95204828U priority Critical patent/TWM297937U/en
Publication of TWM297937U publication Critical patent/TWM297937U/en

Links

Landscapes

  • Specific Conveyance Elements (AREA)

Description

M297937 八、新型說明: 【新型所屬之技術領域】 本創作係為-種加w物料輸送結構,在就指可敝 工作機台加王後之工件’並自動移送之定點之安全技術。 【先前技術】 塑膠成型機 •)在自 工作機台(例如··車床、沖床M297937 VIII. New description: [New technical field] This creation is a kind of safety technology that is a kind of material transfer structure, which refers to the workpiece that can be added to the working machine and automatically transferred. [Prior Art] Plastic Molding Machine •) Self-working machine (for example, lathe, punching machine)

動或半自動加工完工件後,所完成的轉由於無自動捕捉的 裝置,所以會任其如自由落體般的掉落,再祕作人員打開 罩門取料,此人工捕捉工件之方式,不但頗為費事且易有安 全上的問題;而有些人是任其掉落—堆,隔-段時間再取, “匕來,各工件間易互相碰撞而傷及表面精密度,且以人 力捕捉該工件實頗騎力,料具鱗,致絲—貫化自動 化生產,誠有改進之必要。 於是便有人開發出公告第537290號『轉盤式進退料?置 之專利案,可以㈣職術之結構相當複雜,製造及按^ =機台上的成本並不經濟,故而難以符合《製造業者之 有鑑於上述㈣工作機台無捕捉工件裝置之缺失 作^於是積其多年工作經驗,著手創作—可改進現有 再、、工夕-人攻計、試作終得效果卓越的本創 【新型内容】 本創t之与内容健供··—種加工機物料輪送結構, M297937 :疏叙肢中組裝有承料盤,該承料盤係以偶合結構連接 壓虹’使壓域帶動承料盤於殼體職之導槽及落料槽中往 设移動,進而將承料盤巾所捕捉之场經平移、傾倒之過程 轉移至殼料,此麵㈣計,除大㈣省人工與提昇效率 外’且能維制操作人員之安全性,更重要的是,本創作能 去除習用結構的不良問題,有效地降鋪造成本,確實為工 作退料或落料提出-有效解決之新穎技術。After the workpiece is machined or semi-automatically machined, the finished turn will be allowed to fall like a free fall because there is no automatic capture device. Then the secret person opens the cover door to take the material. This way of manually capturing the workpiece is not only quite It is troublesome and easy to have security problems; while some people let it fall-heap, take it every other time, "When you come, each workpiece easily collides with each other and hurts the surface precision, and it is captured by humans. The workpiece is quite riding, the material is scaled, and the wire-spinning automation production is necessary for improvement. So someone developed the patent No. 537290, the "Rotary-type advance and return materials" patent, which can be (four) The structure is quite complicated, and it is not economical to manufacture and press the cost on the machine. Therefore, it is difficult to meet the "manufacturer's lack of the work of the above-mentioned (4) work machine without catching the workpiece. It can improve the existing re-industry, the work-eve-person attack, and the original effect of the test is excellent [new content] The creation and the content of the health supply ··-the processing machine material rotation structure, M297937: in the sarcastic limb Assembly There is a receiving tray, which is connected with the coupling structure by the coupling structure, so that the pressure field drives the receiving tray to move in the guiding groove and the feeding trough of the shell, thereby capturing the field of the receiving towel. After the process of translation and dumping, it is transferred to the shell material. This surface (four) counts, in addition to the large (four) province labor and efficiency, and can maintain the safety of the operator, more importantly, this creation can remove the bad problems of the conventional structure. Effectively lowering the paving, this is indeed a novel technology that is effectively solved for work return or blanking.

為使貴審查委員能進一步瞭解本創作之結構,特徵及其 他目的,_以較佳實_之圖式詳細說明如后·· 、 【實施方式】 請參看第一至五圖,本創作包括有·· 丄—殼體(10),其概呈一矩形箱體,於其—角落處開設 为缺口( 1 1 )’殼體d 0)於缺口(工丄)兩侧對稱向外 水平延伸有侧板(1 2 ),兩側板(i 2 )外端並以固定板(丄 3)橋接’該固定板(χ 3)於相對兩侧板(丄2)之中央 位置設有一貫穿孔(14),並於貫穿孔(14)四周環設有 四個組裝孔(15),喊_板(12)另水平相對設置有 導槽(1 6 ),此導槽(1 6 )並連接有向下斜人殼體内之落 料槽(1 7 ),其導槽(1 6 )和落料槽(1 7 )間之夾角β 1係接近九十度; -壓缸(2 0 ),其係以固支螺检(2丄)鎖設於固定板 (1 3 )之組裝孔(1 5 ),並使該壓虹(2 ◦)之柱塞(2 6 M297937 〇 Ο )得伸入貫穿孔(1 4 )中,令該壓紅(2 〇 )柱塞($ 〇 〇)得受控制而於兩侧板(12)間作—定行程之平移;In order to enable your review board to further understand the structure, features and other purposes of this creation, _ is described in detail in the figure of the better _ as follows. [Implementation] Please refer to the first to fifth figures, this creation includes · 丄 壳体 壳体 壳体 壳体 壳体 壳体 壳体 壳体 壳体 壳体 壳体 壳体 壳体 壳体 壳体 壳体 壳体 壳体 壳体 壳体 壳体 壳体 壳体 壳体 壳体 壳体 壳体 壳体 壳体 壳体 壳体 壳体 壳体 壳体 壳体 壳体 壳体 壳体 壳体 壳体 壳体 壳体 壳体 壳体 壳体The side plates (1 2 ), the outer ends of the two side plates (i 2 ) are bridged by a fixing plate (丄3). The fixing plate (χ 3) is provided with a permanent perforation at the center of the opposite side plates (丄2). ), and four assembly holes (15) are arranged around the through hole (14), and the shouting plate (12) is horizontally disposed opposite to the guide groove (16). The guiding groove (16) is connected with the direction. The falling groove (17) in the lower inclined human shell, the angle β 1 between the guiding groove (16) and the falling groove (17) is close to ninety degrees; - the pressure cylinder (20), The fixing hole (1 5 ) of the fixing plate (1 3 ) is locked by a solid screw inspection (2 丄), and the plunger (2 6 M297937 〇Ο ) of the pressure rainbow (2 ◦) is inserted through. In the hole (1 4 ), make the red (2 〇) column The plug ($ 〇 〇) is controlled to be translated between the two sides of the board (12).

一承料盤(3 0 ),係專供捕捉轉之用,其係設置於兩 侧板(12)間,該承料盤(3 〇)具有—矩狀底板(3工), ^於底板(31 )四周向上連接之圍板(3 2)所構成,其 前、後圍板(3 2 )和底板(3工)之夹角们係大於九十 度,以使該該圍板(3 2)能與落料槽(丄7)傾斜角度互 補;至於底板(3 1 )底關前後間隔的設有兩軸管組(3 3 )’該軸管組(3 3 )係由兩間隔之心管體所組成,用以 供轴件(3 4 )貫穿驗,雜件(3 4 )兩端緣分組設有 單由承所構成之導輪(3 5 ),且使導輪(3 5 )恰對合於導槽 (16)七其轴件(34)另於導輪(35)夕卜侧鎖設有 Θ定螺帽(3 6 ),以防止導輪(3 5 )外翻或脫落; 3)之兩管體間設有 •倘a結構,係於前端軸管組 一活動塊(40),該活減(4Q)貫設有—樞孔(4ι) 此梅孔(41)係與軸件(34)樞接,且該活動塊(4〇 另以預設之螺孔(42)來和柱塞(2〇〇)固接。 △由以上之結構制得知,本創作之結構麟置於工作機 台加工位置之正下方’以使承料盤(3 〇)得以捕捉工件, 由於承料盤(30)係以導輪(35)滑合於導槽(16) 中,所以壓Μ 2 0)在接受到落料之訊息後,其柱塞(2 〇〇)能推動承料盤(30),令承料盤(3〇)依導 7 M297937 域制而滑移至殼體(10)内,待承料盤人 (3 5 )進入落料槽(7 ) ' 3 0j ¥輪 ^ , 之辄圍後’由於承粗般f q η、 口主塞(2 G Q )間有偶合結構之設置,所^ 〇 )可傾斜的將工件倒出,㈣ 4料盤(3 落料槽角圍板(32)係能與 你厂補,以完成順利傾敏件,心 使壓缸(2 〇)能帶動承 豕匕, ^ ^ T寸现(30)於殼體(10)之導 9、1 6 )及落料槽(]_ 7 )中往声 'A receiving tray (30) is specially designed for capturing and transferring. It is arranged between two side plates (12). The receiving tray (3 〇) has a rectangular bottom plate (3 working), ^ on the bottom plate (31) The surrounding panels (32) are connected upwardly, and the angles between the front and rear panels (32) and the floor (3 workers) are greater than ninety degrees so that the panels (3) 2) It can be complementary to the angle of inclination of the blanking trough (丄7); as for the bottom and back of the bottom plate (3 1 ), there are two shaft tube sets (3 3 ). The shaft tube group (3 3 ) is separated by two The heart tube body is composed for the shaft member (3 4 ) to pass through the inspection, and the two ends of the miscellaneous member (3 4 ) are grouped with a guide wheel (3 5 ) composed of a single bearing body, and the guide wheel (3 5 ) The coupling member (16) and the guide wheel (35) are provided with a setting nut (3 6 ) to prevent the guide wheel (3 5 ) from everting or 3) The two tubes are provided with a structure, if a structure, is attached to the front axle tube group, a movable block (40), and the live reduction (4Q) is provided with a - pivot hole (4ι). This plum hole (41) The shaft member is pivotally connected to the shaft member (34), and the movable block (4〇 is further fixed by a predetermined screw hole (42) and a plunger (2〇〇) △ It is known from the above structure that the structure of the creation is placed directly below the machining position of the work machine 'to enable the receiving tray (3 〇) to capture the workpiece, because the receiving tray (30) is guided by the guide wheel (35) Sliding into the guide groove (16), so the pressure Μ 2 0) after receiving the message of the blanking, the plunger (2 〇〇) can push the receiving tray (30) to make the receiving tray ( 3〇) Slide to the housing (10) according to the 7 M297937 domain system, and wait for the carrier (3 5) to enter the blanking trough (7) ' 3 0j ¥ wheel ^, after the encirclement The coarse fq η, the main plug (2 GQ) has a coupling structure, and the ^) can tilt the workpiece out, (4) 4 trays (3 blanking troughs (32) can be with you The factory fills up to complete the smooth tilting of the parts, and the heart makes the pressure cylinder (2 〇) can drive the bearing, ^ ^ T inch is now (30) in the casing (10) guide 9, 16) and the blanking trough ( ]_ 7 ) Between the sounds '

循序轉移至殼體(1 Q)外。& h ’俾令該工件得以 是以,本創作輸送作業,係採無人化自動作業,自缺可 从幅提升生產效率,及減少人工撿拾之危險性,更重钱 ^該等結構設置成本,遠較制為低,且整個輪送動作相 當間便且確貫’極具市場競爭性。 · 另外,請配合第六、七及八圖所示,其係本創作第二實 施例,該實關主要在贿(i Q)底部按裝有彈簣(5 〇), 使承料盤(3 0 )至下賴位置時,其驗觸抵接承料盤 (3 0 )後端圍板(3 2 ),並在傾斜工件後,其藉由工件重 量之釋放,能辅助的提供桎塞(2 〇 〇)回拉彈力,以增進 壓缸(2 〇)之使用壽命。 綜上所述’本創作之結構在現有之此類結構之中,可以 說是前所未見’其突破了習用此類結構之傳統設計,由於本 案具有悉心之設計’故在實用上具有結構精簡、不佔機台空 間、運輸簡易、可與機台空間搭配、成本低之諸多優點,故 8 M297937 符合新型專利之申請要件乃爰依法提出申請。惟以上所述 者,僅為本創作之一較佳實施例而已,當不能以之限定本創 作實施之範圍,即大凡依本創作申請專利範圍所作之均等變 化與修飾,皆應仍屬本創作涵蓋之範圍内。 M297937 【圖式簡單說明;j 第-圖:係本創作之分解示意圖。 弟二圖:係本創作之組合示意圖。 第三圖:係本創作之側視示意圖。 圖。Transfer to the outside of the housing (1 Q) in sequence. & h '俾 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该It is far lower than the system, and the entire round-robin action is quite convenient and accurate - very competitive in the market. · In addition, please cooperate with the sixth, seventh and eighth figures, which is the second embodiment of this creation. The actual practice is mainly to install a magazine (5 〇) at the bottom of the bribe (i Q) to make the receiving tray ( 3 0 ) When it is in the lower position, its contact abuts the rear end plate (3 2 ) of the receiving tray (30), and after tilting the workpiece, it can assist the provision of the plug by the release of the weight of the workpiece. (2 〇〇) Pull back the tension to increase the service life of the cylinder (2 〇). In summary, the structure of this creation is among the existing such structures, which can be said to be unprecedented. It breaks through the traditional design of using such structures. Because the case has a careful design, it has a practical structure. The advantages of streamlining, not occupying the space of the machine, simple transportation, collocation with the space of the machine, and low cost, therefore, the application requirements of 8 M297937 complying with the new patent are submitted according to law. However, the above is only a preferred embodiment of the present invention. When it is not possible to limit the scope of the creation of the creation, that is, the equal change and modification of the patent application scope of this creation should still belong to the creation. Within the scope of coverage. M297937 [Simple diagram of the diagram; j - Figure: is an exploded view of the creation. Brother II: a schematic diagram of the combination of the creation. The third picture: a side view of the creation. Figure.

f四圖係本創作承料盤於導槽平移之動作示意圖。 弟五圖:係本創作承料盤於落料槽傾之動作示音圖 第六圖:係本創作第二實施例於導槽平移之動=音 ―第七圖:係本創作第二實施例之第二動作示意圖。〜、 弟八圖:係本創作第二實施例於賴槽傾之動作示意圖 【主要元件符號說明】f Four diagrams are diagrams of the action of the creation of the feeding tray in the guide groove. The fifth picture of the younger brother: the sixth figure of the action sounding diagram of the creative feeding tray in the blanking trough: the movement of the second embodiment in the guide groove translation = sound - seventh figure: the second implementation of the creation The second action diagram of the example. ~, 弟八图: This is the schematic diagram of the second embodiment of this creation in the Lai sag. [Main component symbol description]

(10)殼體 (1 2)侧板 (14)貫穿孔 (1 6 )導槽 (2 0)壓缸 (21)固支螺检 (3 0)承料盤 (3 2)圍板 (3 4)軸件 (3 6)固定螺帽 (4 0 )活動塊 (4 2)螺孔 (1 1)缺口 (13)固定板 (15)組裝孔 (17)落料槽 (2 0 0)柱塞 (3 1 )底板 (3 3)軸管組 (3 5)導輪 (41)框孔 (5 0)彈簧 10(10) Housing (1 2) Side plate (14) Through hole (16) Guide groove (20) Cylinder (21) Fixing screw inspection (3 0) Feeding plate (3 2) Coaming plate (3 4) Shaft (3 6) fixing nut (4 0 ) movable block (4 2) screw hole (1 1) notch (13) fixing plate (15) assembly hole (17) blanking groove (200) column Plug (3 1 ) bottom plate (3 3) shaft tube set (3 5) guide wheel (41) frame hole (50) spring 10

Claims (1)

M297937 九、申請專利範圍: 料盤所組成; 種加工機物料輸送結構,其係由 殼體、壓缸及承 有:兩侧具有向外延伸之側板,其兩_水平相對 II,此導槽並連接有向下斜入殼體内之落料槽; 心在相對_板_位脸財㈣ 塞可於兩側板間平移; 便4缸之柱 然後於_板馳設有—可捕紅件之轉盤,兮承料 盤設有導輪,且以偶合結構和柱塞樞連,使壓紅得帶動承料 碰導槽限制而滑移至殼體内,待承料盤導輪進入落料样之 耗圍後,即得產生傾倒工件之作用。 曰 2、如申請專利麵料項所述加工機物料 其殼體输-簡體,料—嶋轉缺口 1 於缺口兩侧對稱㈣水平延伸有顯,兩側板外端並以固: 板橋接,該固定板外端於相對兩侧板之中央位置· 該壓红之餘得伸人貫穿孔t,令該壓缸柱 2 兩側板間作一定行程之平移。 4制而於 3、如㈣專利翻第!項所述加工機物料輪送結構, -矩狀底板,及於底板四周向上連接之圍板所 •秦成,其W、後圍板和底板之夾角係大於九十度,而導番 落料槽間之㈣係接近九馆,錢_板轉落料== 角度互補,以利於殼體内順利傾倒工件。 11 M297937 4、如申請專利範圍第1項所述加工機物料輸送結構, 其承料盤於絲底面前翻_設有兩綺組,她〜 由兩間隔之同心管體所組成,用以供轴件貫穿 =緣分組設有軸承·成之導輪,且使導輪恰對合於導槽 甘5、如中請糊範圍第4項所述加卫機物料輪送結槿’ “偶合結構餅m端軸f組之兩管體間設有— 動塊貫設有—樞孔,馳孔係與轴件樞接,且#塊’該活 孔來和柱塞固接。 μ居動塊以螺 6、如中請專利範圍第丄項所述加工機 其殼體底部按裝有彈簧,使承料盤至下死點錢日Γ結構, 後,其轉由工件重 衝的抵接承料盤後端圍板,並在傾斜工件。^ ’其能緩 童之釋放,簡助的提餘塞回拉彈力。M297937 IX. Scope of application: The composition of the tray; the material conveying structure of the processing machine, which is composed of a shell, a pressure cylinder and a bearing: the side plates extending outward on both sides, the two _ horizontal relative II, the guiding groove And connected with a blanking trough which is inclined downward into the casing; the heart can be translated between the two sides of the plate in the opposite _ plate_ position face (four); the column of 4 cylinders is then set in the _ plate - red catchable The turntable is provided with a guide wheel, and the coupling wheel is pivotally connected with the coupling structure, so that the red pressure causes the receiving material to meet the guide groove limitation and slides into the casing, and the guide wheel of the receiving tray enters the blanking. After the sample is exhausted, it will have the effect of dumping the workpiece.曰 2. For example, the processing machine material of the patented fabric item has its shell transmission-simplified body, and the material-turning notch 1 is symmetrically distributed on both sides of the notch (4) horizontally, and the outer ends of the two sides of the board are solidified: the board is bridged, the fixing The outer end of the plate is at the center of the opposite side plates. The red pressure is extended by the through hole t to make a certain stroke between the plates on both sides of the cylinder block 2. 4 system and 3, such as (four) patents turned over! The material conveying structure of the processing machine, the rectangular bottom plate, and the surrounding plate connected to the bottom of the bottom plate, Qin Cheng, the angle between the W, the rear wall and the bottom plate is greater than ninety degrees, and the guiding material is blanked. The (four) system between the slots is close to the nine halls, and the money_board turns blank == angle complementary, in order to facilitate the smooth dumping of the workpiece inside the casing. 11 M297937 4. The processing material conveying structure of the processing machine according to item 1 of the patent application scope, the receiving tray is turned forward on the bottom surface of the wire _ there are two sets of groups, and her ~ is composed of two spaced concentric tubes for The shaft member passes through the rim group and is provided with a bearing and a guide roller, and the guide wheel is just opposite to the guide groove 甘5, as in the middle of the paste Scope, the reinforced machine material is turned over and the 槿' "coupling structure Between the two tubes of the m-end shaft f group of the cake, the moving block is provided with a pivot hole, the punching system is pivotally connected with the shaft member, and the #块' the working hole is fixed to the plunger. In the case of the screw 6, as described in the scope of the patent scope, the bottom of the casing of the processing machine is equipped with a spring to make the receiving tray to the bottom dead point of the structure, and then the workpiece is re-punched by the workpiece. The rear end of the tray is placed on the slanting workpiece. ^ 'It can release the child's release, and the simple helper pulls back to pull the stretch.
TW95204828U 2006-03-23 2006-03-23 Material delivery structure of processing machine TWM297937U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW95204828U TWM297937U (en) 2006-03-23 2006-03-23 Material delivery structure of processing machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW95204828U TWM297937U (en) 2006-03-23 2006-03-23 Material delivery structure of processing machine

Publications (1)

Publication Number Publication Date
TWM297937U true TWM297937U (en) 2006-09-21

Family

ID=37988148

Family Applications (1)

Application Number Title Priority Date Filing Date
TW95204828U TWM297937U (en) 2006-03-23 2006-03-23 Material delivery structure of processing machine

Country Status (1)

Country Link
TW (1) TWM297937U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106586370A (en) * 2016-12-29 2017-04-26 无锡凯涵科技有限公司 Conveying structure of material shelf
CN112960413A (en) * 2021-02-26 2021-06-15 滁州市立鸿精密塑胶模具有限公司 A receiving agencies for producing high performance connector accessory
CN116142817A (en) * 2022-12-07 2023-05-23 无锡弗艾特粉体科技有限公司 Automatic powder feeding system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106586370A (en) * 2016-12-29 2017-04-26 无锡凯涵科技有限公司 Conveying structure of material shelf
CN112960413A (en) * 2021-02-26 2021-06-15 滁州市立鸿精密塑胶模具有限公司 A receiving agencies for producing high performance connector accessory
CN112960413B (en) * 2021-02-26 2022-08-05 滁州市立鸿精密塑胶模具有限公司 A receiving agencies for producing high performance connector accessory
CN116142817A (en) * 2022-12-07 2023-05-23 无锡弗艾特粉体科技有限公司 Automatic powder feeding system
CN116142817B (en) * 2022-12-07 2023-11-28 广东恩索博环保科技有限公司 Automatic powder feeding system

Similar Documents

Publication Publication Date Title
EP1731245A3 (en) Diecast machine and diecast mathod
CN108945931B (en) Book arrangement device in library
EP1990871A3 (en) Connector and medical apparatus
CN206509705U (en) Double jump ring material pressing device
TWM297937U (en) Material delivery structure of processing machine
CN107472624B (en) A kind of label and overlay film feed device of file production line
CN105107910A (en) Self-unloading punch press
CN207044886U (en) A kind of wiring board automatic screen printer
JP2007019240A5 (en)
EP1908710A3 (en) Apparatus for handling sheet-like products
EP1882589A3 (en) Printing press
KR101683376B1 (en) An Automated Book Scanner Using Commercial Cameras and Commercial Flatbed Scanners
CN206086029U (en) Manipulator device of stamping is responded to to full -automatic intelligence
TW201000252A (en) Retaining structure for a cutter sleeve
CN215615102U (en) Cylindrical coordinate type metal 3D printer
TW201010821A (en) Guiding tool structure of chain toolholder
CN210269261U (en) Multifunctional sampling clamp for food safety law enforcement
CN211808502U (en) Fixing device for window decoration digital printing
EP1595706A3 (en) Three-dimensional hard copy apparatus
CN112777396A (en) Clamping mechanism for clamping protector to belt of protector jacketing machine
CN208995512U (en) A kind of cladding fragment clamp pair
CN104527242A (en) Three-freedom-degree manual stamping machine
CN215047558U (en) Clamping mechanism for clamping protector to belt of protector jacketing machine
CN215617648U (en) Fixing device for automation equipment
CN219805713U (en) Grooving device for ventilation pipeline machining

Legal Events

Date Code Title Description
MM4K Annulment or lapse of a utility model due to non-payment of fees