TW201720622A - Injection molding machine clamping force setting method and system - Google Patents
Injection molding machine clamping force setting method and system Download PDFInfo
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本發明是有關於一種鎖模力設定方法，尤其是一種射出成型機鎖模力設定方法及其系統。 The invention relates to a clamping force setting method, in particular to a method and a system for setting a clamping force of an injection molding machine.
一般產業所使用之射出成型機，其樣式包含三板型、兩板型、無大柱型等射出成型機的機種。其中，是利用射出模具本身特定形狀，使塑膠(或聚合物)成型為具有一定形狀和尺寸的製品。在注塑成形時，通過閉模/關閉的金屬模具，施予預先設定的鎖模力後，向該金屬模具中注射熔融樹脂。 The injection molding machine used in the general industry includes models of injection molding machines such as three-plate type, two-plate type, and no large column type. Among them, the plastic (or polymer) is molded into a product having a certain shape and size by using a specific shape of the injection mold itself. At the time of injection molding, a predetermined mold clamping force is applied by a mold that is closed/closed, and then molten resin is injected into the mold.
參閱圖1，為一射出成型機10以過大之鎖模力11，來壓制該金屬模具12，以一注射力道13注射該熔融樹脂14時，該金屬模具12中的空氣將無法順利排出，而導致射出製品15中產生氣泡，不僅使製品之品質降低，更會發生金屬模具的壽命降低，及能量消耗增大等問題。 Referring to Fig. 1, an injection molding machine 10 presses the metal mold 12 with an excessive clamping force 11, and when the molten resin 14 is injected by an injection force 13, the air in the metal mold 12 cannot be smoothly discharged. The generation of air bubbles in the injection product 15 not only lowers the quality of the product, but also causes problems such as a decrease in the life of the metal mold and an increase in energy consumption.
參閱圖2，為該射出成型機10以不足之鎖模力11，來壓制該金屬模具12，以一注射力道13注射該熔融樹脂14時，該金屬模具12將不足以抵抗注射力道13，而導致該金屬模具12被撐開，使該射出製品15產生溢料的問題。 Referring to FIG. 2, the metal mold 12 is pressed by the injection molding machine 10 with an insufficient clamping force 11, and when the molten resin 14 is injected by an injection force 13, the metal mold 12 will be insufficient to resist the injection force 13, and This causes the metal mold 12 to be stretched, causing the exit product 15 to have a problem of flashing.
因此，如何在不同之射出成型機中取得適當之鎖模力，並於射出成型時，該金屬模具不打開的最小限度來防止溢料的發生，且能夠成順利將該金屬模具中的空氣順利排出，以順利進行射出成型的製程，是相當值得研究的議題之一。 Therefore, how to obtain appropriate clamping force in different injection molding machines, and at the time of injection molding, the metal mold does not open to the minimum to prevent the occurrence of flash, and can smoothly smooth the air in the metal mold. Discharging, in order to smoothly carry out the injection molding process, is one of the topics worthy of study.
因此，本發明之一目的，是在提供一種射出成型機之鎖模力設定方法，適用於計算出該射出成型機的適當鎖模力值，該射出成型機包括至少一固定柱、一設置於該固定柱一端之固定壁、一設置於該固定壁之第一模具、一套設於該固定壁並可於該固定壁上滑動之活動壁、一固定於該活動壁並可分離地與該第一模具接合之第二模具，及一與該活動壁連接之鎖模模組，該鎖模模組移動該第二模具，使該第二模具與該第一模具進行接合及分離，可提供一射出材料進行射出成型，該鎖模力設定方法包含下列步驟： Accordingly, it is an object of the present invention to provide a clamping force setting method for an injection molding machine suitable for calculating an appropriate clamping force value of the injection molding machine, the injection molding machine comprising at least one fixing post and one disposed on a fixing wall at one end of the fixing column, a first mold disposed on the fixing wall, a movable wall disposed on the fixing wall and slidable on the fixing wall, being fixed to the movable wall and detachably a second mold joined by the first mold, and a clamping module coupled to the movable wall, the clamping module moving the second mold to engage and separate the second mold and the first mold, and An injection material is injection molded, and the clamping force setting method comprises the following steps:
首先執行一感測器設定步驟，於該射出成型機中設置一感測器，以感測該射出成型機的鎖模力。 First, a sensor setting step is performed, and a sensor is disposed in the injection molding machine to sense the clamping force of the injection molding machine.
接著執行一鎖模力感測步驟，該鎖模模組以任意大小不同之鎖模力將該第二模具與該第一模具進行組合，再將該射出材料進行注入，並記錄該感測器取得之複數鎖模力，及相對應之鎖模力增量。 Then, a clamping force sensing step is performed, the clamping module combines the second mold with the first mold with a clamping force of any size, and then injects the injection material, and records the sensor. The multiple clamping force obtained, and the corresponding clamping force increment.
最後執行一取得適當鎖模力步驟，將所儲存之複數不同大小之鎖模力，及複數相對應之鎖模力增量，以一自動曲線擬合判斷法進行分析，當該自動曲線擬合判斷法分析出二線段時，以該二線段之交點值的±10%為該射出成型機的適當鎖模力值。 Finally, a step of obtaining a suitable clamping force is performed, and the stored clamping force of different numbers and the corresponding clamping force increment are analyzed by an automatic curve fitting judgment method, and the automatic curve fitting is performed. When the judging method analyzes the second line segment, the appropriate clamping force value of the injection molding machine is ±10% of the intersection value of the two line segments.
本發明之又一技術手段，是在於上述之取得適當鎖模力步驟中，當該自動曲線擬合判斷法分析無法出現二線段時，再以一曲線擬合法求出兩交點，並以該二交點之平均值的±10%為該適當鎖模力值。 Another technical means of the present invention is that in the step of obtaining an appropriate clamping force, when the automatic curve fitting judgment method cannot analyze the second line segment, the two intersection points are obtained by a curve fitting method, and the two points are obtained. ±10% of the average of the intersection points is the appropriate clamping force value.
本發明之另一技術手段，是在於上述之該取得適當鎖模力步驟中，當該自動曲線擬合判斷法分析無法出現二線段，且該複數鎖模力增量之連接線的平均斜率大於β時，無法取得該射出成型機的適當鎖模力值。 Another technical means of the present invention is that in the step of obtaining the appropriate clamping force, the second curve segment cannot be formed when the automatic curve fitting judgment method is analyzed, and the average slope of the connecting line of the complex clamping force increment is greater than When β is used, the appropriate clamping force value of the injection molding machine cannot be obtained.
本發明之再一技術手段，是在於上述之取得適當鎖模力步驟中，當該自動曲線擬合判斷法分析出現二線段，且其中一線段之斜率大於β，另一線段之斜率大於γ時，無法取得該射出成型機的適當鎖模力值。 A further technical means of the present invention is that in the step of obtaining an appropriate clamping force, when the automatic curve fitting judgment method analyzes the occurrence of two line segments, and the slope of one of the line segments is larger than β, and the slope of the other line segment is greater than γ The appropriate clamping force value of the injection molding machine cannot be obtained.
本發明之又一技術手段，是在於上述之感測器設定步驟中，該感測器為設置於該固定柱上之應變規(Strain gauge)，以感測該固定柱的應變量。 Another technical means of the present invention is that in the sensor setting step, the sensor is a strain gauge disposed on the fixed column to sense the strain amount of the fixed column.
本發明之另一技術手段，是在於上述之感測器設定步驟中，該感測器為線性位移式感測器(linear displacement transducer)，設置於該第一模具與該第二模具上，以感測該第一模具與該第二模具的相對位移量。 Another technical means of the present invention is that in the sensor setting step, the sensor is a linear displacement transducer disposed on the first mold and the second mold to A relative displacement amount of the first mold and the second mold is sensed.
本發明之再一技術手段，是在於上述之射出材料選自於塑料、金屬粉材、木質粉材、陶瓷坯料，及此等之組合。 Still another technical means of the present invention is that the above-mentioned ejection material is selected from the group consisting of plastics, metal powders, wood powders, ceramic ingots, and combinations thereof.
本發明之又一技術手段，是在於上述之鎖模力感測中，必須控制該第一模具，及該第二模具的溫度，以避免感測之鎖模力受到第一、二模具溫度的干擾。 Another technical means of the present invention is that in the above-mentioned clamping force sensing, the temperature of the first mold and the second mold must be controlled to prevent the sensing clamping force from being subjected to the first and second mold temperatures. interference.
本發明之另一目的，是在提供一種射出成型機鎖模力設定系統，適用於上述之射出成型機鎖模力設定方法，並包含至少一感測器，及一鎖模力計算器。 Another object of the present invention is to provide an injection molding machine clamping force setting system suitable for the above-described injection molding machine clamping force setting method, and comprising at least one sensor and a clamping force calculator.
該感測器設置於該射出成型機中。該鎖模力計算器，與該感測器電連接，並取得該射出成型機之鎖模力值。 The sensor is disposed in the injection molding machine. The clamping force calculator is electrically connected to the sensor and obtains a clamping force value of the injection molding machine.
本發明之再一技術手段，是在於上述之鎖模力計算器包括一計算模組，及一與該計算模組電連接之記憶模組，該記憶模組可記錄不同之鎖模力，及相對應之鎖模力增量，以提供該計算模組運算出該射出成型機的適當鎖模力值。 A further technical means of the present invention is that the above-mentioned clamping force calculator comprises a computing module and a memory module electrically connected to the computing module, the memory module can record different clamping force, and The corresponding clamping force increment is provided to provide the calculation module to calculate the appropriate clamping force value of the injection molding machine.
本發明之有益功效在於，該鎖模模組以不同大小之鎖模力，將該第二模具推向該第一模具，以該第二 模具推向該第一模組，並使該第一、二模組緊接在一起。接著再將該射出材料進行射出成型，並由該感測器記錄每段時間的增量，以記錄不同之鎖模力時相對應之所模力增量。最後以該自動曲線擬合判斷法取得該射出成型機的適當鎖模力值。 The beneficial effect of the present invention is that the clamping module pushes the second mold toward the first mold with the clamping force of different sizes, and the second The mold is pushed toward the first module, and the first and second modules are closely connected together. The injection material is then injection molded, and the increment of each time is recorded by the sensor to record the corresponding increase in the modulus of force when different clamping forces are recorded. Finally, the appropriate clamping force value of the injection molding machine is obtained by the automatic curve fitting judgment method.
a‧‧‧鎖模模組之鎖模力值 a‧‧‧Clamping force value of the clamping module
b‧‧‧感應最大鎖模力值 b‧‧‧Induction maximum clamping force value
c‧‧‧鎖模力增量值 c‧‧‧Clamping force increment
3‧‧‧射出材料 3‧‧‧Injecting materials
5‧‧‧射出成型機 5‧‧‧Injection molding machine
51‧‧‧固定柱 51‧‧‧Fixed column
52‧‧‧固定壁 52‧‧‧Fixed wall
53‧‧‧第一模具 53‧‧‧First mould
54‧‧‧活動壁 54‧‧‧ movable wall
55‧‧‧第二模具 55‧‧‧Second mold
56‧‧‧鎖模模組 56‧‧‧Clock module
7‧‧‧鎖模力設定系統 7‧‧‧Clamping force setting system
71‧‧‧感測器 71‧‧‧ Sensors
72‧‧‧鎖模力計算器 72‧‧‧Clamping force calculator
721‧‧‧計算模組 721‧‧‧Computation Module
722‧‧‧記憶模組 722‧‧‧Memory Module
901~903‧‧‧步驟 901~903‧‧‧Steps
L1‧‧‧第一線段 L1‧‧‧ first line
L2‧‧‧第二線段 L2‧‧‧ second line
L3‧‧‧第三線段 L3‧‧‧ third line segment
L4‧‧‧第四線段 L4‧‧‧ fourth line
L5‧‧‧第五線段 L5‧‧‧ fifth line
L6‧‧‧第六線段 L6‧‧‧ sixth line
L7‧‧‧第七線段 L7‧‧‧ seventh line
L8‧‧‧第八線段 L8‧‧‧ eighth line
P1‧‧‧第一交點 P1‧‧‧ first intersection
P2‧‧‧第二交點 P2‧‧‧ second intersection
P3‧‧‧第三交點 P3‧‧‧ third intersection
P4‧‧‧第二交點與第三交點的平均值 Average of the second and third intersections of P4‧‧‧
α‧‧‧適當鎖模力值 α‧‧‧Appropriate clamping force value
圖1是一示意圖，說明一般射出成型機使用過大鎖模力之態樣；圖2是一示意圖，說明一般射出成型機使用過小鎖模力之態樣；圖3是一裝置示意圖，說明本發明射出成型機鎖模力設定方法及其系統之第一較佳實施例中，一射出成型機的態樣；圖4是一流程圖，說明該第一較佳實施例之實施步驟；圖5是一方塊圖，說明該第一較佳實施例之元件關係；圖6是一分析圖，說明該第一較佳實施例中，將一射出材料進行射出成型時，該射出成型機之鎖模力增量的變化；圖7是一分析圖，說明該第一較佳實施例於形式一時，相對複數鎖模力之鎖模力增量的分析圖；圖8是一分析圖，說明該第一較佳實施例於形式二時，相對複數鎖模力之鎖模力增量的分析圖；圖9是一分析圖，說明該第一較佳實施例於形式三時，相對複數鎖模力之鎖模力增量的分析圖；圖10是一分析圖，說明該第一較佳實施例於形式四時，相對複數鎖模力之鎖模力增量的分析圖；及圖11是一裝置示意圖，本發明射出成型機鎖模力設定方法及其系統之第二較佳實施例中，一射出成型機的態樣。 1 is a schematic view showing a state in which a general injection molding machine uses an excessively large clamping force; FIG. 2 is a schematic view showing a state in which a general injection molding machine uses a small clamping force; FIG. 3 is a schematic view of the apparatus, illustrating the present invention. In the first preferred embodiment of the method for setting the clamping force of the injection molding machine and the system thereof, an injection molding machine is shown; FIG. 4 is a flow chart illustrating the implementation steps of the first preferred embodiment; A block diagram illustrating the component relationship of the first preferred embodiment; and FIG. 6 is an analysis diagram illustrating the clamping force of the injection molding machine when an injection material is injection molded in the first preferred embodiment. FIG. 7 is an analysis diagram illustrating an analysis of the clamping force increment of the relative clamping force in the first preferred embodiment; FIG. 8 is an analysis diagram illustrating the first In the second embodiment, the analysis of the clamping force increment relative to the complex clamping force; FIG. 9 is an analysis diagram illustrating the relative preferred clamping force of the first preferred embodiment in the third form. An analysis chart of the clamping force increment; FIG. 10 is an analysis diagram, FIG. 11 is a schematic view showing the clamping force of the injection molding machine of the present invention, and the system thereof. In the second preferred embodiment, an aspect of the molding machine is injected.
有關本發明之相關申請專利特色與技術內容，在以下配合參考圖式之較佳實施例的詳細說明中，將可清楚的呈現。 The detailed description of the preferred embodiments of the present invention will be apparent from the detailed description of the preferred embodiments.
參閱圖3、4、5，為本發明之射出成型機5鎖模力設定方法及其系統的第一較佳實施例，該第一較佳實施例為一種鎖模力設定方法，適用於計算出該射出成型機5的適當鎖模力值。該射出成型機5包括至少一固定柱51、一設置於該固定柱51一端之固定壁52、一設置於該固定壁52之第一模具53、一套設於該固定壁52並可於該固定壁52上滑動之活動壁54、一固定於該活動壁54並可分離地與該第一模具53接合之第二模具55，及一與該活動壁54連接之鎖模模組56，該鎖模模組56移動該第二模具55，使該第二模具55與該第一模具53進行接合及分離，可提供一射出材料3進行射出成型。 Referring to Figures 3, 4 and 5, a first preferred embodiment of a method for setting a clamping force of an injection molding machine 5 and a system thereof according to the present invention is a clamping force setting method suitable for calculation. The appropriate clamping force value of the injection molding machine 5 is output. The injection molding machine 5 includes at least one fixing post 51, a fixing wall 52 disposed at one end of the fixing post 51, a first mold 53 disposed on the fixing wall 52, and a set of the fixing wall 52. a movable wall 54 sliding on the fixed wall 52, a second mold 55 fixed to the movable wall 54 and detachably coupled to the first mold 53, and a clamping module 56 connected to the movable wall 54 The mold clamping module 56 moves the second mold 55 to join and separate the second mold 55 and the first mold 53 to provide an injection material 3 for injection molding.
在該第一較佳實施例中，是使用四柱型全電臥式射出成型機，是一種業界常使用的機型之一，由於射出成型機5的使用技術已是業界所熟悉的技術，在此便不再詳加贅述，實際實施時，也可以使用其他型式的射出成型機5，不應以此為限。此外，該射出材料3選自於塑料、金屬粉材、木質粉材、陶瓷坯料，及此等之組合，並使用該射出成型機5進行射出製程。 In the first preferred embodiment, a four-column full-electric horizontal injection molding machine is used, which is one of the commonly used models in the industry. Since the use technology of the injection molding machine 5 is already a familiar technique in the industry, Therefore, the details of the injection molding machine 5 can be used in the actual implementation, and should not be limited thereto. Further, the injection material 3 is selected from the group consisting of plastics, metal powders, wood powders, ceramic ingots, and the like, and is used in the injection molding machine 5 to perform an injection process.
本發明之鎖模力設定方法包含一感測器設定步驟901、一鎖模力感測步驟902，及一取得適當鎖模力步驟903，適用於一種射出成型機5鎖模力設定系統7。該鎖模力設定系統7包含至少一設置於該射出成型機5中的感測器71，及一與該感測器71電連接並取得該射出成型機5之鎖模力值的鎖模力計算器72。該鎖模力計算器72包括一計算模組721，及一與該計算模組721電連接之記憶模組722，該記憶模組722可記錄不同之鎖模力，及相對應之鎖模力增量，以提供該計算模組721運算出該射出 成型機5的適當鎖模力值。 The clamping force setting method of the present invention comprises a sensor setting step 901, a clamping force sensing step 902, and a suitable clamping force step 903, which is suitable for an injection molding machine 5 clamping force setting system 7. The clamping force setting system 7 includes at least one sensor 71 disposed in the injection molding machine 5, and a clamping force electrically connected to the sensor 71 and obtaining the clamping force value of the injection molding machine 5. Calculator 72. The clamping force calculator 72 includes a computing module 721 and a memory module 722 electrically coupled to the computing module 721. The memory module 722 can record different clamping forces and corresponding clamping forces. Incremental to provide the calculation module 721 to calculate the injection The appropriate clamping force value of the molding machine 5.
首先，執行該感測器設定步驟901，是在該射出成型機5中設置該感測器71，以感測該射出成型機5的鎖模力值。在該第一較佳實施例中，該感測器71是設置於該固定柱51上之應變規(Strain gauge)，以感測該固定柱51的應變量。 First, the sensor setting step 901 is performed in which the sensor 71 is disposed in the injection molding machine 5 to sense the clamping force value of the injection molding machine 5. In the first preferred embodiment, the sensor 71 is a strain gauge disposed on the fixed post 51 to sense the strain amount of the fixed post 51.
該應變規是一種黏貼該固定柱51的電路感測器，是利用金屬導線之阻值變化來量測金屬的應變量，就電阻的特性來說，阻值會隨著長度的改變，而成正比的變化。但有一個非常重要的觀念，那就是黏貼之應變規，必須與測試體(該固定柱51)視為一體，因此，必須細心將應變規黏貼於該固定柱51上，才可以提高測試之精確度。 The strain gauge is a circuit sensor attached to the fixing post 51. The resistance value of the metal wire is used to measure the strain of the metal. In terms of the characteristics of the resistor, the resistance value changes with the length. Proportional change. However, there is a very important concept that the adherent strain gauge must be integrated with the test body (the fixed post 51). Therefore, the strain gauge must be carefully attached to the fixed post 51 to improve the accuracy of the test. degree.
上述應變規是以透過下列公式(1)來推導該射出成型機5之鎖模力值；
ε=Tie bar stress-strain(u ε) ε=Tie bar stress-strain(u ε)
E=Tie bar Young’s modulus E=Tie bar Young’s modulus
A=Tie bar cross sectional area(mm2) A=Tie bar cross sectional area(mm2)
F=clamping force(Tonf) F=clamping force(Tonf)
因此，該第一較佳實施例依據所使用之射出成型機5的相關數據，求出下列公式(2)，以感應該射出成型機5之鎖模力值：
接著，執行該鎖模力感測步驟902，該鎖模模組56以任意大小不同之鎖模力將該第二模具55與該第一模具53進行組合，再將該射出材料3進行射出製程，並記錄該感測器71取得之複數鎖模力，及相對應之鎖模力 增量。 Then, the clamping force sensing step 902 is performed. The clamping module 56 combines the second mold 55 with the first mold 53 with a clamping force of any size, and then the injection material 3 is injected. And recording the complex clamping force obtained by the sensor 71, and the corresponding clamping force Incremental.
配合參閱圖6，為該射出成型機5之鎖模模組56，以一鎖模力值a將該第二模具55推向該第一模具53，令該第一、二模具53、55緊接在一起，再將該射出材料3進行射出成型，並以該感測器71來感應該射出成型機5之鎖模力值的時間曲線。其中，橫軸為注入該射出材料3的時間，縱軸為該感測器71感應該射出成型機5之鎖模模組56的鎖模力值。 Referring to FIG. 6, the mold clamping module 56 of the injection molding machine 5 pushes the second mold 55 toward the first mold 53 with a clamping force value a, so that the first and second molds 53 and 55 are tight. Together, the injection material 3 is injection molded, and the time curve of the mold clamping force value of the injection molding machine 5 is sensed by the sensor 71. The horizontal axis is the time when the injection material 3 is injected, and the vertical axis is the clamping force value of the mold clamping module 56 of the injection molding machine 5 sensed by the sensor 71.
由圖6中可知，當該射出材料3以固定的射出力量射入該第一、二模具53、55時，會提高該第一、二模具53、55中的壓力並由內產生撐力，此時連接於該第一、二固定壁52、54之固定柱51會產生延長的情況，導致所感應之射出成型機5的鎖模力將會上升，當該射出材料3停止注入後，該第一、二模具53、55中的空氣會由縫隙中排出，使該第一、二模具53、55中的壓力釋放，而將該固定壁52之長度還原，導致該射出成型機5之鎖模力將會回復。其中，該感測器71所感應之感應最大鎖模力值b，減去該鎖模模組56之鎖模力值a，可以得到一鎖模力增量值c。 As can be seen from FIG. 6, when the injection material 3 is injected into the first and second molds 53, 55 with a fixed injection force, the pressure in the first and second molds 53, 55 is increased and the support force is generated from the inside. At this time, the fixing column 51 connected to the first and second fixing walls 52, 54 is prolonged, so that the clamping force of the inductive injection molding machine 5 will rise, and when the injection material 3 stops being injected, the The air in the first and second dies 53, 55 is discharged from the gap, releasing the pressure in the first and second dies 53, 55, and reducing the length of the fixed wall 52, resulting in the lock of the injection molding machine 5. The mold force will reply. Wherein, the maximum clamping force value b sensed by the sensor 71 is subtracted from the clamping force value a of the clamping module 56, and a clamping force increment value c can be obtained.
在該鎖模力感測步驟902中，該鎖模模組56以任意大小不同之鎖模力，將該第一、二模具53、55組接在一起，並以固定的射出力量進行射出製程時，該鎖模力計算器72之記憶模組722可記錄不同之鎖模力，及相對應之鎖模力增量。 In the clamping force sensing step 902, the clamping module 56 combines the first and second molds 53 and 55 with clamping force of different sizes, and performs the injection process with a fixed injection force. The memory module 722 of the clamping force calculator 72 can record different clamping forces and corresponding clamping force increments.
最後，執行該取得適當鎖模力步驟903，將所儲存之複數不同大小之鎖模力，及複數相對應之鎖模力增量，以一自動曲線擬合判斷法進行分析，當該自動曲線擬合判斷法分析出二線段時，以該二線段之交點值的±10%為該射出成型機5的適當鎖模力值。 Finally, the step of obtaining the appropriate clamping force is performed, and the stored clamping force of different numbers and the corresponding clamping force increment are analyzed by an automatic curve fitting judgment method, and the automatic curve is used. When the two-line segment is analyzed by the fitting judging method, the appropriate clamping force value of the injection molding machine 5 is taken as ±10% of the intersection value of the two-line segment.
參閱圖7，為鎖模力增量之曲線圖(型態一)， 該計算模組721以自動曲線擬合判斷法，將該記憶模組722所記錄不同之鎖模力，及所對應之鎖模力增量所繪製而成，其中，橫軸為該鎖模模組56所施加之複數大小不同之鎖模力，縱軸為將該射出材料3進行射出成型時之鎖模力增量。 Referring to Figure 7, is a graph of the clamping force increment (type 1), The calculation module 721 is formed by an automatic curve fitting judgment method, and the different clamping force recorded by the memory module 722 and the corresponding clamping force increment are drawn, wherein the horizontal axis is the clamping mode The clamping force of the plurality of different sizes applied by the group 56, and the vertical axis is the clamping force increment when the injection material 3 is injection molded.
由圖7中可以得知，當該鎖模模組56之鎖模力設定較小時，該射出材料3會使該第一、二模具53、55中的壓力增大，導致設置於該固定柱51上的感測器71能感應到較大的鎖模力增量；而當該鎖模模組56之鎖模力設定較大時，則該第二模組55對該第一模組53會產生較大的壓制力，即使該第一、二模具53、55中的壓力增加，也不足以讓該固定柱51產生彈伸的狀況，使該感測器71所感測之鎖模力增量持平。該計算模組721可將所儲存之數據分析出二線段(第一線段L1、第二線段L2)時，並以該二線段(第一線段L1、第二線段L2)之交點值(第一交點P1)的±10%(適當鎖模力值α)為該射出成型機5的適當鎖模力值。 It can be seen from FIG. 7 that when the clamping force of the clamping module 56 is set to be small, the ejection material 3 increases the pressure in the first and second molds 53, 55, resulting in the fixing. The sensor 71 on the column 51 can sense a larger clamping force increment; and when the clamping force setting of the clamping module 56 is set larger, the second module 55 can be used to the first module. 53 will generate a large pressing force, even if the pressure in the first and second molds 53, 55 is increased, it is not enough to cause the fixed column 51 to be stretched, so that the clamping force sensed by the sensor 71 The increment is flat. The calculation module 721 can analyze the stored data into two line segments (the first line segment L1 and the second line segment L2), and use the intersection value of the two line segments (the first line segment L1 and the second line segment L2) ±10% of the first intersection P1) (appropriate clamping force value α) is a suitable clamping force value of the injection molding machine 5.
參閱圖8，為鎖模力增量之曲線圖(型態二)，橫軸為該鎖模模組56所施加之複數大小不同之鎖模力，縱軸為將該射出材料3進行射出成型時之鎖模力增量。當自動曲線擬合判斷法分析無法出現二線段時，再以一曲線擬合法求出兩交點(第二交點P2、第三交點P3)，並以該二交點(第二交點P2、第三交點P3)之平均值(第二交點P2與該第三交點P3的平均值P4)的±10%(適當鎖模力值α)為該射出成型機5的適當鎖模力值。 Referring to FIG. 8 , which is a graph of the clamping force increment (type 2), the horizontal axis is the clamping force of the complex size applied by the clamping module 56, and the vertical axis is the injection molding of the injection material 3 . The clamping force is increased in time. When the automatic curve fitting judgment method cannot analyze the two line segments, the two intersection points (the second intersection point P2 and the third intersection point P3) are obtained by a curve fitting method, and the two intersection points (the second intersection point P2 and the third intersection point) are obtained. ±10% (appropriate clamping force value α) of the average value of P3) (the average value P4 of the second intersection P2 and the third intersection P3) is an appropriate clamping force value of the injection molding machine 5.
其中，(型態二)所使用之曲線擬合法是將橫軸之複數鎖模力，由小至大區分為三個區段，再計算每一區段之複數鎖模力增量的平均斜率，並繪製出三線段(第三線段L3、第四線段L4、第五線段L5)，再求出該三線段(第三線段L3、第四線段L4、第五線段L5)之兩交點(第二交 點P2、第三交點P3)，最後就以該二交點(第二交點P2、第三交點P3)之平均值(第二交點P2與該第三交點P3的平均值P4)的±10%(適當鎖模力值α)為該射出成型機5的適當鎖模力值。 Among them, the curve fitting method used in (Type 2) is to divide the complex clamping force of the horizontal axis into three segments from small to large, and then calculate the average slope of the complex clamping force increment of each segment. And draw a three-line segment (third line segment L3, fourth line segment L4, fifth line segment L5), and then find the two intersection points of the three-line segment (third line segment L3, fourth line segment L4, fifth line segment L5) Two pay Point P2, third intersection point P3), and finally the average value of the two intersection points (second intersection point P2, third intersection point P3) (±10% of the second intersection point P2 and the average value P4 of the third intersection point P3) The appropriate clamping force value α) is the appropriate clamping force value of the injection molding machine 5.
參閱圖9，為鎖模力增量之曲線圖(型態三)，橫軸為該鎖模模組56所施加之複數大小不同之鎖模力，縱軸為將該射出材料3進行射出成型時之鎖模力增量。當該自動曲線擬合判斷法分析無法出現二線段，且該複數鎖模力增量之連接線(第六線段L6)的平均斜率大於β時，無法取得該射出成型機5的適當鎖模力值。 Referring to FIG. 9 , which is a graph of the clamping force increment (type 3), the horizontal axis is the clamping force of the complex size applied by the clamping module 56, and the vertical axis is the injection molding of the injection material 3 . The clamping force is increased in time. When the automatic curve fitting judgment analysis cannot occur the two-line segment, and the average slope of the connecting line of the complex clamping force increment (the sixth line segment L6) is larger than β, the appropriate clamping force of the injection molding machine 5 cannot be obtained. value.
其中，該鎖模模組56以複數過低之鎖模力(模式三)，將該第一、二模具53、55接合並進行射出製程時，會於產品上產生毛邊，導致曲線圖會出現較為傾斜的曲線。因此，斜率β是判斷所使用之鎖模力是否太低的條件，當出現平均斜率大於β的曲線時，必須重新設定該鎖模模組56之鎖模力，再次執行該鎖模力感測步驟902，及該取得適當鎖模力步驟903。由於不同之射出成型機5，具有不同判斷斜率β，實際量測時，應搭配所使用的射出成型機5，來決定β。 Wherein, the clamping module 56 has a plurality of clamping force (mode 3) that is too low, and when the first and second molds 53 and 55 are joined and the injection process is performed, a burr is generated on the product, and the graph appears. A more inclined curve. Therefore, the slope β is a condition for judging whether the clamping force used is too low. When a curve having an average slope greater than β occurs, the clamping force of the clamping module 56 must be reset, and the clamping force sensing is performed again. Step 902, and the obtaining a suitable clamping force step 903. Since the different injection molding machines 5 have different judgment slopes β, the actual measurement should be performed in conjunction with the injection molding machine 5 used to determine β.
參閱圖10，為鎖模力增量之曲線圖(型態四)，橫軸為該鎖模模組56所施加之複數大小不同之鎖模力，縱軸為將該射出材料3進行射出成型時之鎖模力增量。當該自動曲線擬合判斷法分析出現二線段(第七線段L7，第八線段L8)，且其中一線段(第七線段L7)之斜率大於β，另一線段(第八線段L8)之斜率大於γ時，無法取得該射出成型機5的適當鎖模力值，其中，斜率值γ大於β(第八線段L8較第七線段L7斜)。 Referring to FIG. 10, which is a graph of the clamping force increment (type 4), the horizontal axis is the clamping force of the complex size applied by the clamping module 56, and the vertical axis is the injection molding of the injection material 3. The clamping force is increased in time. When the automatic curve fitting judgment method analyzes the two line segments (the seventh line segment L7, the eighth line segment L8), and the slope of one of the line segments (the seventh line segment L7) is larger than β, the slope of the other line segment (the eighth line segment L8) When it is larger than γ, the appropriate clamping force value of the injection molding machine 5 cannot be obtained, wherein the slope value γ is larger than β (the eighth line segment L8 is oblique to the seventh line segment L7).
當該鎖模模組56以複數更低之鎖模力(模式四)，將該第一、二模具53、55接合並進行射出製程時，其產品會產生溢料，導致曲線圖不僅會出現大於β的線段， 更會出現大於γ的線段，因此，當曲線圖出現二線段(第七線段L7，第八線段L8)，且該二線段(第七線段L7，第八線段L8)之斜率分別大於β及γ時，必須重新設定該鎖模模組56之鎖模力，再次執行該鎖模力感測步驟902，及該取得適當鎖模力步驟903。由於不同之射出成型機5，具有不同判斷斜率β及γ，實際量測時，應搭配所使用的射出成型機5，來決定β及γ。 When the clamping module 56 is combined with the lower clamping force (mode 4), the first and second molds 53, 55 are joined and the injection process is performed, the product will generate flash, and the graph will not only appear. a line segment larger than β, A line segment larger than γ will appear. Therefore, when the graph shows a two-line segment (the seventh segment L7, the eighth segment L8), and the slopes of the two segments (the seventh segment L7 and the eighth segment L8) are larger than β and γ, respectively. At this time, the clamping force of the clamping module 56 must be reset, the clamping force sensing step 902 is performed again, and the appropriate clamping force step 903 is obtained. Since the different injection molding machines 5 have different judgment slopes β and γ, in actual measurement, the injection molding machine 5 used should be used to determine β and γ.
參閱圖11，為本發明射出成型機5鎖模力設定方法及其系統的第二較佳實施例，該第二較佳實施例與該第一較佳實施例大致相同，相同之處於此不再贅述，不同之處在於，在該感測器設定步驟901中，該感測器71為線性位移式感測器(linear displacement transducer)，設置於該第一模具53與該第二模具55上，以感測該第一模具53與該第二模具55的相對位移量。 Referring to FIG. 11, a second preferred embodiment of the method for setting the clamping force of the injection molding machine 5 and the system thereof is substantially the same as the first preferred embodiment, and the same is true here. The difference is that, in the sensor setting step 901, the sensor 71 is a linear displacement transducer disposed on the first mold 53 and the second mold 55. To sense the relative displacement amount of the first mold 53 and the second mold 55.
較佳地，線性位移式感測器是一種光學感測器，能以極高的精細度，來測量該第一、二模具53、55之間的位移量，以計算出該鎖模模具鎖使用之鎖模力，及該射出材料3進行射出成型時，所產生的鎖模力增量。由於高精密之線性位移式感測器已為業界所熟悉之技術，在此不再詳加贅述。 Preferably, the linear displacement sensor is an optical sensor capable of measuring the displacement between the first and second molds 53, 55 with extremely high precision to calculate the mold clamping mold lock. The clamping force used, and the amount of clamping force generated when the injection material 3 is injection molded. Since high-precision linear displacement sensors are well-known in the industry, they will not be described in detail herein.
此外，在該感測器71感測鎖模力時，該固定柱51的形變量，或該第一、二模具53、55的相對位移量都很微小，容易受到外在溫度的干擾，必須使溫控器來控制該第一模具53，及該第二模具55的溫度，以避免鎖模力受到第一、二模具53、55溫度的干擾，而使量測的數據產生變化。由於使用溫控器來控制溫度，並穩定溫度之技術，已為業界所熟悉，在此便不再加以贅述。 In addition, when the sensor 71 senses the clamping force, the deformation amount of the fixing post 51 or the relative displacement of the first and second molds 53 and 55 is small, and is easily interfered by the external temperature, and must be The temperature controller is used to control the temperature of the first mold 53 and the second mold 55 to prevent the clamping force from being disturbed by the temperatures of the first and second molds 53, 55, and the measured data is changed. The technique of using a thermostat to control temperature and stabilize temperature has been familiar to the industry and will not be described here.
參閱表1、2、3，為發明人採用PC(表1)、ABS(表2)，及PC+ABS(表3)三種塑料，分別進行該鎖模力設定方法，以分別判斷該射出成型機5應用於不同射出 材料3時的適當鎖模力值。經該鎖模力計算器72計算後，當使用PC材質之塑料時，該射出成型機5之適當鎖模力值為32Ton~52Ton；當使用ABS材質之塑料時，該射出成型機5之適當鎖模力值為31Ton~51Ton；當使用PC+ABS材質之塑料時，該射出成型機5之適當鎖模力值為30Ton~50Ton。實際實施時，該鎖模力設定系統7可以裝設於其他形式之射出成型機5，也可以使用其他材質之射出材料3，不應以此為限。 Referring to Tables 1, 2, and 3, the inventors used PC (Table 1), ABS (Table 2), and PC + ABS (Table 3) three plastics, respectively, to perform the clamping force setting method to separately determine the injection molding. Machine 5 is applied to different shots Appropriate clamping force value for material 3. After the clamping force calculator 72 is calculated, when the plastic of PC material is used, the appropriate clamping force of the injection molding machine 5 is 32Ton~52Ton; when the plastic of ABS material is used, the injection molding machine 5 is suitable. The clamping force value is 31Ton~51Ton; when using PC+ABS plastic, the appropriate clamping force of the injection molding machine 5 is 30Ton~50Ton. In practice, the clamping force setting system 7 can be installed in other forms of the injection molding machine 5, and the injection material 3 of other materials can also be used, and should not be limited thereto.
綜上所述，本發明利用該射出成型機5之固定柱51的形變量，或該第一、二模具53、55的相對位移量，量測並計算出該射出成型機5之鎖模力，並於使用該射出材料3進行射出製程時，再取得該射出成型機5之鎖模力增量之方式，以複數大小不同之鎖模力，繪製出鎖模力增量的曲線圖，並以自動曲線擬合判斷法計算出適當之鎖模力，避免過小之鎖模力造成產品瑕疵，而過大之鎖模力造成能源浪費或模具損壞，故確實能夠達到本發明之目的。 In summary, the present invention measures and calculates the clamping force of the injection molding machine 5 by using the deformation of the fixing column 51 of the injection molding machine 5 or the relative displacement of the first and second molds 53, 55. And when the injection material 3 is used for the injection process, the clamping force increment of the injection molding machine 5 is obtained, and the clamping force of the plurality of different sizes is used to draw a graph of the clamping force increment. The appropriate clamping force is calculated by the automatic curve fitting judgment method to avoid the product smashing caused by the excessive clamping force, and the excessive clamping force causes energy waste or mold damage, so the object of the present invention can be achieved.
惟以上所述者，僅為本發明之兩個較佳實施例而已，當不能以此限定本發明實施之範圍，即大凡依本發明申請專利範圍及發明說明內容所作之簡單的等效變化與修飾，皆仍屬本發明專利涵蓋之範圍內。 However, the above is only the two preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, that is, the simple equivalent changes made according to the scope of the present invention and the description of the invention are Modifications are still within the scope of the invention.
901~903‧‧‧步驟 901~903‧‧‧Steps
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