TWI607854B - An injection machine's rotational shaft turntable positioning apparatus - Google Patents
An injection machine's rotational shaft turntable positioning apparatus Download PDFInfo
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- TWI607854B TWI607854B TW104136097A TW104136097A TWI607854B TW I607854 B TWI607854 B TW I607854B TW 104136097 A TW104136097 A TW 104136097A TW 104136097 A TW104136097 A TW 104136097A TW I607854 B TWI607854 B TW I607854B
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Description
本發明係關於一種定位裝置，尤指能控制射出機之轉軸式轉盤旋轉定位之精準位置者。 The invention relates to a positioning device, in particular to a precise position capable of controlling the rotational positioning of the rotary shaft of the injection machine.
按，雙色射出成型係指以二種顏色或材質之塑料進行射出作業，使所製成之成品於外觀上具有雙色或雙材質之效果。而該雙色射出成型機於作動時，係將公、母模設置於可180度往復旋轉之模板上，待公、母模合模後進行第一次注料動作，接著開模並使模板以180度旋轉來變換公模位置，再讓公、母模合模以進行第二次注料動作，即能於開模、脫模後完成射出成品。而習知旋轉模板之方法可分為轉軸式、轉盤式或是將二者整合於一射出成型機，以轉軸式而言，其係透過減速機輸出軸利用皮帶帶動套設於轉軸之齒輪轉動，使固定在轉軸上的模具作迴轉動作，並透過設於馬達之編碼器來達成讓轉盤定位之效果；然而，此方式雖能達成定位之目的，但減速機內的減速齒輪組在傳動間仍會產生背隙問題而造成定位不準確的問題。 According to the two-color injection molding, the injection work is performed in two colors or materials, so that the finished product has the effect of two-color or two-material appearance. When the two-color injection molding machine is actuated, the male and female molds are placed on a template that can be rotated 180 degrees, and the first injection operation is performed after the male and female molds are closed, and then the mold is opened and the template is opened. The 180 degree rotation is used to change the position of the male mold, and then the male and female molds are closed for the second injection operation, that is, the finished product can be finished after the mold is opened and the mold is released. The conventional method of rotating the template can be divided into a rotating shaft type, a rotary type or a two-integrated injection molding machine. In the rotating shaft type, the rotating shaft is driven by a belt to drive the gear rotating on the rotating shaft. The mold fixed on the rotating shaft is rotated, and the effect of positioning the turntable is achieved by the encoder provided on the motor; however, although the method can achieve the purpose of positioning, the reduction gear set in the reducer is in the transmission room. There is still a problem of backlash problems that cause inaccurate positioning.
另外，如中華民國公告第498840號專利係揭露一種「射出機之模具轉盤定位結構改良」，其係將二油壓緩衝器藉定位座橫向組固於中機壁前 壁的中心處上、下方，並將撞擊板組固於轉盤外壁之中心處上方，使撞擊板左側壁壓掣抵於上油壓緩衝器之作用端，藉此，使轉盤受中機壁上方齒輪座之油壓馬達及動力軸驅使主動齒輪、從動齒輪及轉盤齒輪依序轉動並連動轉盤旋轉時，撞擊板可隨轉盤之旋轉而同步轉動，且旋轉中之撞擊板右側壁壓掣抵靠於下方油壓緩衝器之作用端時，旋轉之轉盤能藉由油壓緩衝器來消除高速之撞擊力，使其瞬間快速停止定位，以縮短模具旋轉循環之時間。 In addition, as disclosed in the Patent No. 498840 of the Republic of China, the "improvement of the positioning structure of the mold turntable of the injection machine" is disclosed in which the two hydraulic buffers are laterally assembled in front of the middle wall by the positioning seat. Above and below the center of the wall, and the impact plate is fixed above the center of the outer wall of the turntable, so that the left side wall of the impact plate is pressed against the active end of the oil pressure buffer, thereby making the turntable above the middle wall When the hydraulic motor and the power shaft drive of the gear base drive the driving gear, the driven gear and the turntable gear to rotate in sequence and rotate the turntable, the impact plate can rotate synchronously with the rotation of the turntable, and the right side wall of the impact plate in the rotation is pressed against When it is pressed against the working end of the hydraulic shock absorber below, the rotating turntable can eliminate the high-speed impact force by the oil pressure buffer, so that it can quickly stop positioning instantaneously, so as to shorten the time of the mold rotation cycle.
中華民國公告第M497087號專利係揭露一種「具轉軸及轉盤功能之雙色射出機」，其係於本體上設有轉盤及轉軸，轉盤內設有一槽孔，本體上組設有轉軸套管，並使轉軸套管對應穿設至轉盤槽孔內，且於槽孔內組設有對應轉軸套管之第一軸承並能透過伺服馬達驅動，藉此，使模具以轉軸式旋轉時，能利用伺服馬達啟動帶動主動輪連動傳動帶，而能藉傳動帶來帶動轉軸套管的從動輪，使轉軸套管與轉軸同時旋轉，以達成定位效果。 The Republic of China Announcement No. M497087 discloses a "two-color injection machine with a rotating shaft and a turntable function", which is provided with a turntable and a rotating shaft on the body, a slot is arranged in the turntable, and a rotating shaft sleeve is arranged on the body, and The rotating shaft sleeve is correspondingly inserted into the slot of the rotary disc, and the first bearing corresponding to the rotating sleeve is assembled in the slot and can be driven by the servo motor, thereby enabling the servo to be used when the mold is rotated in the rotating shaft The motor starts to drive the driving wheel to drive the transmission belt, and the driven wheel that drives the rotating shaft sleeve can be driven by the transmission to rotate the rotating shaft sleeve and the rotating shaft simultaneously to achieve the positioning effect.
中華民國公告第M476047號專利係揭露一種「射出機轉盤控制裝置」，其係將伺服馬達連接於轉盤機構，並利用位置記錄器輸出轉盤機構的位置資料，待伺服驅動器接收位置記錄器所傳送的位置資料後，即供應電力以驅動伺服馬達，而伺服驅動器則根據位置記錄器所輸出的位置資料得知轉盤機構所在的當前位置，以驅動伺服馬達精準控制轉盤機構轉動至目標位置。 The Republic of China Announcement No. M476047 discloses an "injector turntable control device" which connects a servo motor to a turntable mechanism and uses a position recorder to output position information of the turntable mechanism to be received by the servo drive receiving position recorder. After the position data, the power is supplied to drive the servo motor, and the servo driver knows the current position of the turntable mechanism according to the position data output by the position recorder, so as to drive the servo motor to accurately control the turntable mechanism to rotate to the target position.
有鑑於習用以轉軸旋轉模板之方式，是由伺服馬達透過減速機帶動轉軸旋轉定位，但減速機之減速齒輪會因背隙問題而產生定位不準確之缺失。 In view of the way in which the rotary stencil is used for rotating the shaft, the servo motor drives the rotary shaft to rotate and position through the reducer, but the reduction gear of the reducer may be inaccurate in positioning due to backlash problems.
是以，本發明之目的乃是透過於轉軸式轉盤定位裝置內增設編 碼器，以藉由至少二編碼器來降低齒輪間隙誤差值，並達成精確控制定位之功效。 Therefore, the purpose of the present invention is to add an edit to the rotary dial type positioning device. The encoder is used to reduce the gear gap error value by at least two encoders and achieve the effect of accurately controlling the positioning.
為達前揭目的，本發明之技術手段在於提供一種射出機之轉軸式轉盤定位裝置，該定位裝置係組設於一活動模座，位於活動模座內設有一具從動輪之轉軸套管，且該定位裝置包含：一轉軸，置於該轉軸套管內，且於轉軸之一端組設有一轉盤；一位移驅動機構，組設於該轉軸未設轉盤之一端，並用以帶動轉軸呈水平方向位移作動；一伺服馬達，該伺服馬達具有一第一編碼器及一驅動軸，且伺服馬達能依所接收之訊號驅動驅動軸旋轉，第一編碼器用於感測馬達旋轉訊號；一減速機，組設於該伺服馬達並具有一能藉驅動軸帶動之減速齒輪組，該減速齒輪組具有一輸出軸，並於該輪出軸上設有一第二編碼器及一主動輪；一中央控制單元，能依設定數值或接收自第一編碼器及第二編碼器之感測訊號傳送指令予伺服馬達；以及一傳動帶，係套設於該主動輪及該從動輪。 In order to achieve the foregoing, the technical means of the present invention is to provide a rotating shaft type rotating device for an injection machine, which is set in a movable mold base, and a rotating shaft sleeve with a driven wheel is disposed in the movable mold base. The positioning device comprises: a rotating shaft disposed in the rotating shaft sleeve, and a turntable is arranged at one end of the rotating shaft; a displacement driving mechanism is disposed on one end of the rotating shaft not provided with the rotating shaft, and is used to drive the rotating shaft to be horizontal Displacement actuation; a servo motor having a first encoder and a drive shaft, and the servo motor can drive the drive shaft to rotate according to the received signal, the first encoder is used for sensing the motor rotation signal; and the speed reducer is The set is disposed on the servo motor and has a reduction gear set that can be driven by a drive shaft. The reduction gear set has an output shaft, and a second encoder and a drive wheel are disposed on the wheel output shaft; a central control unit And transmitting a command to the servo motor according to the set value or the sensing signal received from the first encoder and the second encoder; and a driving belt sleeved on the driving wheel and the Driving wheel.
基於上述，使本發明之轉軸式轉盤定位裝置能藉由位移驅動機構控制組設於轉軸之轉盤前推或後退，以進行公、母模合模或開模作業，並能於完成射出動作後，利用伺服馬達驅動減速機之輸出軸使主動輪轉動，並藉傳動帶帶動轉軸同時讓轉盤旋轉定位，且能於旋轉時，透過設於伺服馬達之第一編碼器及設於減速機之第二編碼器感測訊號來調整其速度及位置回授，使伺服馬達將轉盤轉動至精確位置並達成快速定位之功效。 Based on the above, the rotary shaft type positioning device of the present invention can be controlled by the displacement drive mechanism to push forward or backward of the rotary table set on the rotating shaft to perform the male or female mold clamping or mold opening operation, and can complete the injection operation. The servo motor is used to drive the output shaft of the reducer to rotate the driving wheel, and the rotating belt is driven by the belt to simultaneously position the rotating shaft, and can be rotated through the first encoder provided on the servo motor and the second set in the speed reducer. The encoder senses the signal to adjust its speed and position feedback, allowing the servo motor to rotate the turntable to a precise position and achieve fast positioning.
本發明： this invention:
1‧‧‧定位裝置 1‧‧‧ Positioning device
10‧‧‧中央控制單元 10‧‧‧Central Control Unit
11‧‧‧轉軸 11‧‧‧ shaft
12‧‧‧轉盤 12‧‧‧ Turntable
13‧‧‧位移驅動機構 13‧‧‧Displacement drive mechanism
14‧‧‧伺服馬達 14‧‧‧Servo motor
141‧‧‧第一編碼器 141‧‧‧ first encoder
142‧‧‧驅動軸 142‧‧‧ drive shaft
15‧‧‧減速機 15‧‧‧Reducer
150‧‧‧減速齒輪組 150‧‧‧Reduction gear set
151‧‧‧輸出軸 151‧‧‧ Output shaft
152‧‧‧第二編碼器 152‧‧‧Second encoder
153‧‧‧主動輪 153‧‧‧Drive wheel
16‧‧‧傳動帶 16‧‧‧Drive belt
2‧‧‧活動模座 2‧‧‧ activity module
3‧‧‧轉軸套管 3‧‧‧Shaft bushing
31‧‧‧從動輪 31‧‧‧ driven wheel
第1圖係本發明射出機之方塊圖。 Figure 1 is a block diagram of the injection machine of the present invention.
第2圖係本發明射出機之前視圖。 Figure 2 is a front view of the injection machine of the present invention.
第3圖係本發明射出機轉軸前推之示意圖。 Fig. 3 is a schematic view showing the forward rotation of the rotating shaft of the injection machine of the present invention.
第4圖係本發明射出機轉軸後退之示意圖。 Fig. 4 is a schematic view showing the retraction of the rotating shaft of the injection machine of the present invention.
為使 貴審查委員瞭解本發明欲達成目的所運用之技術、手段及功效，茲舉一較佳實施例並配合圖式，詳細說明如后：首先，請參閱第1~3圖所示，本發明之射出機轉軸轉盤定位裝置1係組設於一活動模座2，位於活動模座2內設有一轉軸套管3，該轉軸套管3形成有從動輪31，且該定位裝置1包含一轉軸11、一位移驅動機構13、一伺服馬達14、一減速機15、一中央控制單元10以及一傳動帶16；該轉軸11置於轉軸套管3內，且於轉軸11之一端組設有一轉盤12；該位移驅動機構13組設於轉軸11未設轉盤12之一端，並用以帶動轉軸11呈水平方向位移作動；該伺服馬達14設有一第一編碼器141及一驅動軸142，且伺服馬達14能依所接收之訊號驅動驅動軸142旋轉；該第一編碼器141用於感測驅動軸142的旋轉訊號；該減速機15組設於伺服馬達14並具有一能藉驅動軸142帶動之減速齒輪組150，該減速齒輪組150具有一輸出軸151，並於輸出軸151上設一第二編碼器152及一主動輪153；該中央控制單元10能依設定數值或接收自第一編碼器141及第二編碼器152回授的感測訊號傳送指令予伺服馬達14；而傳動帶16則套設於主動輪153以及轉軸套管3之從動輪31之間。 In order to enable the reviewing committee to understand the techniques, means, and effects of the present invention in order to achieve the objectives, a preferred embodiment will be described in conjunction with the drawings, and the details are as follows: First, please refer to Figures 1~3, The invention relates to an injection shaft rotating shaft positioning device 1 which is arranged in a movable mold base 2, and is provided with a rotating shaft sleeve 3 in the movable mold base 2, the rotating shaft sleeve 3 is formed with a driven wheel 31, and the positioning device 1 comprises a a rotating shaft 11, a displacement driving mechanism 13, a servo motor 14, a speed reducer 15, a central control unit 10 and a transmission belt 16; the rotating shaft 11 is placed in the rotating shaft sleeve 3, and a turntable is arranged at one end of the rotating shaft 11 The displacement drive mechanism 13 is disposed on one end of the rotating shaft 11 and is not provided with one end of the turntable 12, and is configured to drive the rotating shaft 11 to be displaced in a horizontal direction; the servo motor 14 is provided with a first encoder 141 and a driving shaft 142, and the servo motor The first encoder 141 is configured to sense the rotation signal of the drive shaft 142; the reducer 15 is disposed on the servo motor 14 and has a drive shaft 142. Reduction gear set 150, the The speed gear set 150 has an output shaft 151, and a second encoder 152 and a driving wheel 153 are disposed on the output shaft 151; the central control unit 10 can be received from the first encoder 141 and the second encoder according to a set value. The sensing signal fed back by the device 152 transmits a command to the servo motor 14; and the driving belt 16 is sleeved between the driving wheel 153 and the driven wheel 31 of the rotating shaft sleeve 3.
其次，請仍然參閱第1圖及第3圖所示，當射出機採用轉軸式轉盤時，係將公模組設於轉盤12，並使位移驅動機構13作動而推動轉盤12 直至公模密合於母模(如圖中箭頭方向所示)，待公、母模合模後即能進行第一次射出作業；而完成射出後，請配合參閱第4圖，該位移驅動機構13會再次作動將轉盤12往後拉回原位，使公模脫離母模，接著，中央控制單元10接受設定的速度及位置(圈數)後，將速度及位置回授產生的脈波訊號轉換為位置訊號以產生適當電壓命令來使伺服馬達14的驅動軸142旋轉，而伺服馬達14於驅動同時透過第一編碼器141感測伺服馬達14旋轉訊號，使中央控制單元10於接收第一編碼器141之感測訊號後，調整伺服馬達14之轉速，而驅動軸142會帶動減速機15減速齒輪組150之輸出軸151旋轉，並於旋轉同時透過第二編碼器152感測輸出軸151的旋轉訊號，當中央控制單元10接收第二編碼器152之感測訊號與設定的位置訊號因減速齒輪組150背隙而產生誤差時，中央控制單元10將會重新調整給予伺服馬達14的指令，使驅動軸142旋轉並帶動減速機15之輸出軸151旋轉；而當中央控制單元10接收第二編碼器152之感測訊號符合設定的位置訊號時，因輸出軸151會帶動主動輪153旋轉，且於主動輪153旋轉同時透過傳動帶16帶動轉軸11，使固定於轉軸11之轉盤12能旋轉至設定位置，接著，讓位移驅動機構13再次將轉軸11拉回後再進行公、母模合模，以進行第二次射出作業。 Secondly, please refer to FIG. 1 and FIG. 3 again. When the injection machine adopts the rotating shaft type turntable, the male module is set on the turntable 12, and the displacement driving mechanism 13 is actuated to push the turntable 12 Until the male mold is in close contact with the master mold (as indicated by the direction of the arrow in the figure), the first shot can be performed after the male and female molds are closed; and after the shot is completed, please refer to Fig. 4, the displacement drive The mechanism 13 will actuate to pull the turntable 12 back to the original position to release the male mold from the female mold. Then, after the central control unit 10 accepts the set speed and position (the number of turns), the pulse wave generated by the speed and position is feedback. The signal is converted into a position signal to generate an appropriate voltage command to rotate the drive shaft 142 of the servo motor 14, and the servo motor 14 senses the rotation signal of the servo motor 14 through the first encoder 141 while driving, so that the central control unit 10 receives the first After the sensing signal of the encoder 141, the rotation speed of the servo motor 14 is adjusted, and the driving shaft 142 drives the output shaft 151 of the reduction gear set 150 of the reduction gear 15 to rotate, and simultaneously senses the output shaft through the second encoder 152 while rotating. The rotation signal of 151, when the central control unit 10 receives the error signal of the second encoder 152 and the set position signal causes an error due to the backlash of the reduction gear set 150, the central control unit 10 will re-adjust to the servo The output of the motor 14 causes the drive shaft 142 to rotate and the output shaft 151 of the reducer 15 to rotate; and when the central control unit 10 receives the sense signal of the second encoder 152 to meet the set position signal, the output shaft 151 is driven. The driving wheel 153 rotates and rotates the driving wheel 153 while driving the rotating shaft 11 through the driving belt 16, so that the turntable 12 fixed to the rotating shaft 11 can be rotated to the set position, and then the displacement driving mechanism 13 pulls the rotating shaft 11 back again. The master mold is closed for the second shot operation.
據此，透過分別於伺服馬達14與減速機15設第一編碼器141及第二編碼器152，使伺服馬達14於驅動驅動軸142與減速機15時，能藉由第一編碼器141及第二編碼器152傳送至中央控制單元10之感測訊號來確認是否有誤差，並能於調整誤差後給予伺服馬達14指令以控制驅動軸142、減速機15及主動輪153轉動，連帶使轉軸11精確定位。 Accordingly, the first encoder 141 and the second encoder 152 are provided to the servo motor 14 and the speed reducer 15, respectively, so that the servo motor 14 can drive the drive shaft 142 and the speed reducer 15 by the first encoder 141 and The second encoder 152 transmits the sensing signal to the central control unit 10 to confirm whether there is an error, and can give the servo motor 14 command to control the rotation of the driving shaft 142, the speed reducer 15 and the driving wheel 153 after adjusting the error, and the rotating shaft is coupled. 11 precise positioning.
惟以上所述者，僅為本發明之較佳實施例，並非用以限定本發明之實施範圍，凡未脫離本發明技藝精神所為之變化與修飾，皆為本發明專利範圍所涵蓋。 The above is only the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and variations and modifications thereof are not included in the scope of the present invention.
綜上所述，本發明確實已突破傳統並具有改良及創新之創作內容且能具體實施，理應符合發明專利之法定要件，爰依法提出專利申請，懇請鈞局審查委員授予合法專利權，以勵創作，至感德便。 In summary, the present invention has indeed broken through the tradition and has improved and innovative creation content and can be specifically implemented, which should meet the statutory requirements of the invention patent, and file a patent application according to law, and invite the examination committee of the bureau to grant legal patent rights. Creation, to the sense of virtue.
1‧‧‧定位裝置 1‧‧‧ Positioning device
11‧‧‧轉軸 11‧‧‧ shaft
12‧‧‧轉盤 12‧‧‧ Turntable
13‧‧‧位移驅動機構 13‧‧‧Displacement drive mechanism
14‧‧‧伺服馬達 14‧‧‧Servo motor
141‧‧‧第一編碼器 141‧‧‧ first encoder
142‧‧‧驅動軸 142‧‧‧ drive shaft
15‧‧‧減速機 15‧‧‧Reducer
150‧‧‧減速齒輪組 150‧‧‧Reduction gear set
151‧‧‧輸出軸 151‧‧‧ Output shaft
152‧‧‧第二編碼器 152‧‧‧Second encoder
153‧‧‧主動輪 153‧‧‧Drive wheel
16‧‧‧傳動帶 16‧‧‧Drive belt
2‧‧‧活動模座 2‧‧‧ activity module
3‧‧‧轉軸套管 3‧‧‧Shaft bushing
31‧‧‧從動輪 31‧‧‧ driven wheel
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW104136097A TWI607854B (en) | 2015-11-03 | 2015-11-03 | An injection machine's rotational shaft turntable positioning apparatus |
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| TW104136097A TWI607854B (en) | 2015-11-03 | 2015-11-03 | An injection machine's rotational shaft turntable positioning apparatus |
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| TW201716209A TW201716209A (en) | 2017-05-16 |
| TWI607854B true TWI607854B (en) | 2017-12-11 |
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| TWI703799B (en) * | 2019-10-16 | 2020-09-01 | 徐義銘 | Hybrid speed increaser |
| CN116639531B (en) * | 2023-04-20 | 2023-10-03 | 新创碳谷集团有限公司 | Rotary table rotation control method and system based on encoder |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI221187B (en) * | 2002-08-13 | 2004-09-21 | Canon Kk | Rotation angle detection apparatus and rotary disk for same |
| TWM497087U (en) * | 2012-06-15 | 2015-03-11 | Hwa Chin Machinery Factory Co | Dual-color injection molding machine with turning shaft and rotary plate |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI221187B (en) * | 2002-08-13 | 2004-09-21 | Canon Kk | Rotation angle detection apparatus and rotary disk for same |
| TWM497087U (en) * | 2012-06-15 | 2015-03-11 | Hwa Chin Machinery Factory Co | Dual-color injection molding machine with turning shaft and rotary plate |
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| TW201716209A (en) | 2017-05-16 |
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