201100235 六、發明說明： 【發明所屬之技術領域】 本發明是有關於一種成型機，特別是指—種全電式中 空成型機。 【先前技術】 Ο 〇 以往中空成型機在閉模或開模時，是利用油壓方式驅 動-模具相對另一固定設置的模具移動，以達到閉模或開 模作用，但是油壓設計需要設置油管，造成成型機之管路 較多，而且油麼相關設備之體積大，並且容易因為漏油而 污染機台，因此目前成型機大部分已改用電控式成型機。 例如曰本專利JP2004-255598專利案之全電式中空成型 機’其左模具為固定設置，要控制閉模或開模作用時，僅 驅動該右模具朝該左模具靠近而閉模，或是驅動該右模具 遠離該左模具而開模，亦即上述設計是藉由單一模具之移 動來達成閉模與開模作用。但是僅驅動單一模具移動 模，造成閉模接合力量僅由單一模具提供，該固定模且必 須承受該移動模具之接合衝力，雖然固定模具固定設置於 ::定！置’但是在承受接合衝力時，仍然會因為被動地 略微偏移’於是兩模具接合後的中心位置也會偏移 ，進而影響成型出的中會偏移 【發明内容】 種可以同時驅動二 成型精度高的全電 因此，本發明之目❸，即在提供一 模具相互靠近或遠離、閉模施力均勻、 式中空成型機。 3 201100235 於是，本發明全電式中空成型機，包含：一機台、— 夾模裝置，以及一驅動裝置。 該夾模裝置組裝在該機台上，並包括左右設置之一第 杈具與第一模具，以及二個左右間隔並分別連結該等 第-、二模具的作動臂，該等作動臂可受驅動而帶動該等 第一、二模具互相靠近而位於一閉模位置，或是帶動該等 第一、一模具互相遠離而位於一開模位置。 該驅動裝置組裝在該機台上，並包括一動力機構，以 及一連結該動力機構及該等作動臂的擺臂機構。該動力機 構包括-個動力源，以及一可受該動力源驅動而相對該機 台左右移動的調整座。該擺臂機構包括一個擺臂、一個連 接該擺臂並連動其中一作動臂擺動的第一連桿單元，以及 一個連接該擺臂並連動另一作動臂擺動的第二連桿單元。 該擺臂包括-個與該動力機構插接的第一樞部，以及一個 與該-枢部反向間隔的第二樞部 個與該擺臂之第一拖部枢接的第一端，以及 —作動臂的第二端’該第二連桿單元包括一個與該擺臂之 第一樞口p枢接的第三端’以及一個鄰近另—作動臂的第四 端。 該擺臂可受該調整座之左右移動而被驅動擺動，進而 帶動該等第―、二連桿單元各別帶動該等作動臂同時擺動 ’而連動該等第—、二模具互相#近或互相遠離。 【實施方式】 有關本發明之前述及其他技術内容、特點與功效，在 201100235 以下配合參考圖式之一個較佳實施例的詳細說明中 清楚的呈現。 之較佳實施 一夾模裝置 參閱圖1、2、3,本發明全電式中空成型機 例’用於成型一中空容器，並包含：一機台i、 2、一驅動裝置3’以及一模厚調整裝置4。 Ο 該機台1包括一個呈左右延伸之座體構造的底座u、 二個前後間隔地固設在該底座U上的擺臂安裝板12、一個 位於該底座U之上方的模具安裝座13，以及數個間隔地設 置在該模具安裝座13之頂面的模具軌條14 (圖丨只示出一 模具軌條14)。所述擺臂安裝板12皆具有一個第一安裝部 121，該模具安裝座13包括二個左右間隔的第二安裝部^ 該夾模裝置2包括：組袭於該模具安裝座13上的_第 -模具21與-第二模具22，以及二個分別連結該等第—、 二模具21、22的作動臂23。其中，該等第一、二模具η 〇 、22皆嵌裝於該等模具軌條14 i，並可沿著模具軌條14 而相對該模具安裝座13左右滑移，而且該等模具21、22 可左右相向接合，進而配合界定出—用以成型中空容器之 成型空間（圖未示）。該等作動臂23冑包括-個連結該第 一模具21或第二模具22的模具連接部231 —個與該模具 連接部231反向間隔的作動部说，以及一個位於該等模具 連接。P 231與作動部232之間的支點部233，所述支點部 233各別與該模具安裝座13之該等第二安裝部⑶插接。 «亥驅動裝置3包括：_動力機構5、一擺臂機構6、數 5 201100235 個固設在該底座11上並左右向延伸的軌條31，以及二個彼 此左右間隔並嵌裝在該等軌條31上而可相對軌條31左右 /月移的π座32。s亥動力機構5包括一動力源51、一聯轴器 52、一螺桿53、一固定設置在該底座u之頂面的固定座54 、一可相對該底座11與螺桿53左右移動的調整座55，以 及一樞接板56。 該動力源51可被電力驅動，並且是被數位控制作動之 伺服馬達，但實施時不以此為限。該聯轴器52連結該動力 源51之一動力軸511及該螺桿53，使該動力源51輸出之 轉動動力傳遞至該螺才罕53。該螺桿53為滾珠螺桿，並由該 聯袖器52之位置朝該固定座54延伸並向左穿伸而過該 螺桿53可受該動力源51驅動而在原地繞自身軸線轉動。 該調整座55之外形為中空長方體結構，其内部通道之截面 呈圓形’該調整座55包括一個螺接包覆在該螺桿Η之外 周的周壁551，所述周壁551具有一個位於左側而遠離該動 力源51的調整座樞部552，該調整座樞部552是由二個前 後間隔之突出壁部所構成，該調整座55可受朗桿—Μ : 轉動作用驅動而左右移動。該樞接板56包括-個與該調整 座55之調整座樞部552樞接的第一板部561，以及二個： 該第一板部561反向間隔並與該擺臂機構6樞接的第二、 部562。 —板 該擺臂機構6包括_個擺臂61、—第—連桿單元q， 以及-第二連桿單元63。其中’該擺臂61包括—個供該樞 接板56之第二板部562伸入樞接的第一樞部611、—個與 201100235 該第-樞部6U反向間隔的第二枢部612，以及一個位於該 等第、一枢部611、612之間的擺臂支點部613，該擺臂 支點部613位於前後間隔之二個擺臂安裝板12之間，並與 該等第一安裝部121樞接。 该第一連桿單元62包括二個前後間隔的第一連桿621 °玄等第一連桿621連結後，共同將該第一連桿單元62界 定出—個與該擺臂61之第—樞部611枢接的第一端622, 〇 以及一個與該左侧的滑座32樞接的第二端623。該第二連 才干單元63包括二個前後間隔的第二連桿63丨，該等第二連 桿631連結後，共同將該第二連桿單元63界定出一個與該 擺臂61之第二樞部612樞接的第三端632，以及一個與該 右側的滑座32及右側的作動臂23樞接的第四端633。 该等滑座32沿著軌條31左右滑移，具有引導該等第 一、一連桿單元62、63及作動臂23之移動行程的功能， 而該左側的滑座32除了與該第一連桿單元62之第二端623 〇 樞接之外，其左侧部位還與該左侧的作動臂23之作動部 232樞接。在實施時，第一連桿單元62及左側滑座&、左 側作動臂23之設計，也可以如右侧滑座32等右側結構設 s十一樣，使該第一連桿單元62之第二端623及左側滑座32 、左側作動臂23之作動部232樞接在同一部位。 該模厚調整裝置4包括一減速馬達41、一調整機構42 …等構造，藉由該模厚調整裝置4可以改變第一、二模具 21、22對接後所界定出的成型空間的大小，以改變成型出 的中空容益之尺寸，由於該模厚調整裝置4非本發明之改 7 201100235 良重點，故不再詳細說明。 參閱圖1、2、4,該失模裝置2可受該驅動裝置3驅動 而在一個如圖1的開模位置，以及一個如圖4的閉模位置 間轉換。當該夾模裝置2位於該開模位置時，該等第— 二模具21、22互相遠離而沒有靠合在一起，該調整座μ 鄰近該動力源51之位置，該擺臂機構6之擺臂61與第— -連#單元62、63沒有完全橫向延伸開，該擺臂ο是 呈略微傾斜的上下延伸狀，其第—梅部611位於下方，第^ 梅部612位於上方，使得與其連結之第_、二連桿單元Z 63皆呈現左尚右低之斜向延伸，因此該第—連桿單元a 之第二端623與第二連桿單元63之第四端奶互 ， 使得與該擺臂機構6連結之該等二個作動臂Μ之作 一、22亦互相遠離。卩31互相遠離’使第-、 當该動力源51驅動該螺桿53朝-第_方 會驅動該調整座55朝遠離該動力源51的=動時， 二:二移動之同時，透過_板％之帶動推動該:^ 而二二通::擺臂支點部613之軸線為樞轉中心轴線， -、二連桿d轉，擺臂61框轉的過程帶動該等第 單元62之第二端^側遠離而展開’使該第一連桿 —端623與該第二連桿單元 互招遠離’同時該等滑座 之第：端633 ’進而推動兩個作會^ 條31而相互遠離滑動 臂23以-停i t 部232互相遠離，使作動 通過该支點部233之抽線為框轉中心轴線而柩 201100235 轉’其上方的模具連接部231因而相互靠近，使第一、二 模具21、22逐漸相向靠近，最後移動到圖4之閉模位置。 位於該閉模位置時，該擺臂61呈水平，該擺臂61之第一 樞郤611位於左側’其第二樞部6〗2位於右側，而該等第一 、二連桿單元62、63亦呈水平延伸。 ® λ動力源51驅動該螺桿53反向轉動時，會驅動該 調整座55朝靠近該動力源、51的方向移動，即可透過該樞 〇 #板56拉動該擺臂61朝-開模方向72樞轉，進而驅動該 等第—連才干單元62、63互相靠近，左右兩側之滑座32 亦互相罪近，並帶動該夾模裝置2回到圖！之開模位置。 综上所述，藉由該驅動裝置3同時連結二個作動臂23 ’以驅動該等作動臂23帶動該等第一、二模具21、22相 互靠近或遠離，達到閉模與開模之目的，而且第一、二模 具21、22 @時移動靠近而接合閉模，其接合力量是由兩模 八21 22同時且均勻地提供’因此兩模具21、22接合後 〇 t中心位置可被精準地控制在原先狀位置，使後續成型 出的中空容器具有極高精度’確實能達成本發明之目的。 准X上所述者，僅為本發明之較佳實施例而已，當不 :以此限疋本發明實施之範圍，即大凡依本發明中請專利 範圍及發明說明内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内。 【圖式簡單說明】 圖1是本發明全電式中空成型機之一較佳實施例的前 視圖，同時顯示該全電式中空成型機之-夾模裝置位於- 9 201100235 開模位置； 圖2是該較佳實施例之部分元件的立體組合圖； 圖3是該較佳實施例之部分元件的立體分解圖；及 圖4是一類似圖1的前視圖，同時顯示該夾模裝置位 於一閉模位置。 10 201100235201100235 VI. Description of the Invention: [Technical Field] The present invention relates to a molding machine, and more particularly to an all-electric hollow forming machine. [Prior Art] 〇 〇 In the past, when the blow molding machine was closed or opened, it was driven by the hydraulic method - the mold was moved relative to another fixed mold to achieve the mold closing or mold opening, but the hydraulic design needs to be set. The oil pipe causes a lot of pipelines in the molding machine, and the oil-related equipment is bulky, and it is easy to contaminate the machine due to oil leakage. Therefore, most of the molding machines have been switched to electronically controlled molding machines. For example, in the all-electric blow molding machine of the patent JP2004-255598, the left mold is fixedly arranged, and when the mold closing or mold opening action is controlled, only the right mold is driven toward the left mold to close the mold, or The right mold is driven to open the mold away from the left mold, that is, the above design is to achieve mold closing and mold opening by the movement of a single mold. However, only a single mold moving mold is driven, resulting in the closed mold joining force being provided by only a single mold, which must withstand the joining momentum of the moving mold, although the fixed mold is fixedly set to :: fixed! Set 'but when subjected to the joint force, it will still be slightly offset by passive' so that the center position after the two molds are joined will also shift, which will affect the mid-shift of the formed part. [Inventive content] High-precision all-electricity Therefore, the object of the present invention is to provide a hollow molding machine that provides a mold that is close to or away from each other and that has a closed mold application force. 3 201100235 Thus, the all-electric blow molding machine of the present invention comprises: a machine table, a clamping device, and a driving device. The clamping device is assembled on the machine table, and includes a first cooker and a first mold disposed on the left and right sides, and two actuating arms spaced apart from each other and respectively connecting the first and second molds, and the actuating arms are The driving drives the first and second molds to be close to each other to be in a closed mold position, or to drive the first and a molds away from each other to be in a mold opening position. The driving device is assembled on the machine and includes a power mechanism and a swing arm mechanism connecting the power mechanism and the actuating arms. The power mechanism includes a power source and an adjustment seat that is drivable by the power source to move left and right relative to the machine. The swing arm mechanism includes a swing arm, a first link unit that connects the swing arm and oscillates one of the actuator arms, and a second link unit that connects the swing arm and swings the other actuator arm. The swing arm includes a first pivot portion that is coupled to the power mechanism, and a second pivot portion that is oppositely spaced from the pivot portion and a first end pivotally connected to the first drag portion of the swing arm. And - the second end of the actuator arm 'the second link unit includes a third end pivotally connected to the first pivot port p of the swing arm and a fourth end adjacent to the other arm. The swing arm can be driven to swing by the left and right movement of the adjusting seat, thereby driving the first and second link units to respectively drive the working arms to swing simultaneously and interlocking the first and second molds to each other or Stay away from each other. The above and other technical contents, features and effects of the present invention are clearly shown in the following detailed description of a preferred embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A clamping device Referring to Figures 1, 2 and 3, an all-electric hollow molding machine of the present invention is used for molding a hollow container, and comprises: a machine i, 2, a driving device 3' and a The mold thickness adjusting device 4. Ο The machine 1 includes a base u having a seat structure extending left and right, two swing arm mounting plates 12 fixed to the base U in a front-rear interval, and a mold mounting seat 13 above the base U. And a plurality of mold rails 14 spaced apart from each other on the top surface of the mold mount 13 (only one mold rail 14 is shown). The swing arm mounting plate 12 has a first mounting portion 121, and the mold mounting seat 13 includes two second mounting portions spaced apart from each other. The clamping device 2 includes: _ _ _ on the mold mounting seat 13 The first mold 21 and the second mold 22, and the two movable arms 23 that respectively connect the first and second molds 21 and 22. The first and second molds η 〇 22 are embedded in the mold rails 14 i and are slidable relative to the mold mounting seat 13 along the mold rails 14 , and the molds 21 , 22 can be joined to each other in the right and left direction, and then defined to form a molding space for forming a hollow container (not shown). The actuating arms 23A include a mold connecting portion 231 that connects the first mold 21 or the second mold 22, an actuating portion that is oppositely spaced from the mold connecting portion 231, and a mold connection. A fulcrum portion 233 between the P 231 and the actuation portion 232, the fulcrum portion 233 being respectively inserted into the second attachment portions (3) of the mold mounting seat 13. «Hai drive unit 3 includes: _ power mechanism 5, a swing arm mechanism 6, number 5 201100235 rails 31 fixed on the base 11 and extending left and right, and two left and right spaced and embedded in the same On the rail 31, the π-seat 32 can be moved to the left/right of the rail 31. The s-power mechanism 5 includes a power source 51, a coupling 52, a screw 53, a fixing seat 54 fixedly disposed on the top surface of the base u, and an adjusting seat movable relative to the base 11 and the screw 53 55, and a pivot board 56. The power source 51 can be electrically driven and is a servo motor that is operated by digital control, but is not limited thereto. The coupling 52 connects the power shaft 511 of the power source 51 and the screw 53, and transmits the rotational power output from the power source 51 to the screw 53. The screw 53 is a ball screw and extends from the position of the sleeve 52 toward the holder 54 and extends to the left. The screw 53 can be driven by the power source 51 to rotate about its own axis in situ. The adjusting seat 55 has a hollow rectangular parallelepiped structure, and the inner passage has a circular cross section. The adjusting seat 55 includes a peripheral wall 551 which is screwed around the outer circumference of the screw shaft, and the peripheral wall 551 has a left side and a far side. The adjusting base portion 552 of the power source 51 is composed of two protruding wall portions which are spaced apart from each other, and the adjusting seat 55 can be driven to move left and right by the rotation of the lever. The pivoting plate 56 includes a first plate portion 561 pivotally connected to the adjusting seat pivot portion 552 of the adjusting base 55, and two: the first plate portion 561 is oppositely spaced and pivotally connected to the swing arm mechanism 6 The second, part 562. - Plate The swing arm mechanism 6 includes a swing arm 61, a first link unit q, and a second link unit 63. Wherein the swing arm 61 includes a first pivot portion 611 for the second plate portion 562 of the pivot plate 56 to extend into the pivot, and a second pivot portion spaced opposite to the first pivot portion 6U of the 201100235 612, and a swing arm fulcrum portion 613 located between the first and second pivot portions 611, 612, the swing arm fulcrum portion 613 is located between the two swing arm mounting plates 12 spaced apart from each other, and the first The mounting portion 121 is pivotally connected. The first link unit 62 includes two first links 621, which are spaced apart from each other, and the first link 621 is connected to the first link unit 62 to define the first link unit 62 and the first of the swing arms 61. The pivoting portion 611 is pivotally connected to the first end 622, and a second end 623 pivotally connected to the left side sliding seat 32. The second connector unit 63 includes two front and rear spaced second links 63丨. After the second links 631 are coupled, the second link unit 63 is collectively defined with a second and the swing arm 61. The third end 632 pivotally connected to the pivot portion 612 and a fourth end 633 pivotally connected to the right side sliding seat 32 and the right side operating arm 23. The sliders 32 slide along the rails 31 to the left and right, and have the function of guiding the movement strokes of the first and a link units 62, 63 and the actuating arm 23, and the left slider 32 is identical to the first The second end 623 of the link unit 62 is pivotally connected, and the left portion thereof is also pivotally connected to the actuating portion 232 of the left actuating arm 23. In the implementation, the design of the first link unit 62 and the left side slider & and the left side actuator arm 23 may also be the same as the right side structure of the right side slider 32, so that the first link unit 62 is The second end 623 and the left side slide 32 and the actuating part 232 of the left side actuating arm 23 are pivotally connected to the same portion. The mold thickness adjusting device 4 includes a speed reducing motor 41, an adjusting mechanism 42, and the like. The mold thickness adjusting device 4 can change the size of the molding space defined by the first and second molds 21 and 22 after docking. The size of the hollow cavity is changed, and since the die thickness adjusting device 4 is not the focus of the present invention, it will not be described in detail. Referring to Figures 1, 2, 4, the mold release device 2 can be driven by the drive unit 3 to switch between a mold opening position as shown in Figure 1 and a closed mold position as shown in Figure 4. When the clamping device 2 is located at the mold opening position, the second molds 21, 22 are away from each other without being brought together, the adjustment seat μ is adjacent to the position of the power source 51, and the swing arm mechanism 6 is pendulum The arm 61 and the first unit 62, 63 are not completely extended laterally, and the swing arm ο is slightly inclined upward and downward, and the first plum portion 611 is located below, and the first plum portion 612 is located above, so that The connected first and second link units Z 63 all extend obliquely to the left and right lower sides, so that the second end 623 of the first link unit a and the fourth end of the second link unit 63 are mutually milked, so that The two actuator arms connected to the swing arm mechanism 6 are also separated from each other.卩 31 away from each other 'to make the first-, when the power source 51 drives the screw 53 toward the -the-side will drive the adjustment seat 55 to move away from the power source 51, while the second: two moves, the _ plate The driving of % pushes the: ^ and the second two-way: the axis of the swing arm fulcrum portion 613 is the pivoting central axis, - the two links d turn, and the process of swinging the swing arm 61 to drive the first unit 62 The two ends are far apart and unfolded 'to make the first link-end 623 and the second link unit move away from each other' while the first: end 633' of the sliders pushes the two nodes 31 and Along from the sliding arm 23, the stopping portion 232 is separated from each other, so that the drawing through the fulcrum portion 233 is the frame rotation center axis and the 模具201100235 turns the mold connecting portion 231 above it so as to approach each other, so that the first and second The dies 21, 22 gradually approach each other and finally move to the closed mold position of FIG. When the mold closing position is located, the swing arm 61 is horizontal, the first pivot 611 of the swing arm 61 is located on the left side, and the second pivot portion 6 is located on the right side, and the first and second link units 62, 63 also extends horizontally. When the λ power source 51 drives the screw 53 to rotate in the reverse direction, the adjustment seat 55 is driven to move toward the power source 51, and the swing arm 61 can be pulled toward the mold opening direction through the pivot 板 plate 56. 72 pivoting, and thus driving the first-thick units 62, 63 close to each other, the sliding seats 32 on the left and right sides are also close to each other, and the clamping device 2 is driven back to the figure! The mold opening position. In summary, the driving device 3 simultaneously connects the two operating arms 23' to drive the operating arms 23 to drive the first and second molds 21, 22 closer to or away from each other to achieve the purpose of closing and opening the mold. And the first and second molds 21, 22 @ move closer to each other and engage the closed mold, and the joint force is simultaneously and uniformly provided by the two molds 8 21 22 'so that the center positions of the two molds 21 and 22 can be accurately The ground control is in the original position, so that the subsequently formed hollow container has extremely high precision, and the object of the present invention can be achieved. The above is only the preferred embodiment of the present invention, and is not limited to the scope of the present invention, that is, the simple equivalent of the patent scope and the description of the invention in the present invention. Variations and modifications are still within the scope of the invention. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a front elevational view of a preferred embodiment of an all-electric blow molding machine of the present invention, showing that the clamping device of the all-electric blow molding machine is located at - 9 201100235; 2 is a perspective assembled view of a part of the components of the preferred embodiment; FIG. 3 is an exploded perspective view of a portion of the components of the preferred embodiment; and FIG. 4 is a front view similar to FIG. 1, showing that the clamping device is located A closed mold position. 10 201100235
【主要元件符號說明】 1 •…機台 52…… …·聯轴器 11 Λ «· Λ ·> ο •…底座 53 ^ ^ •…螺桿 12.' …擺臂安裝板 5 4 …“ X •…固定座 121 …第一安裝部 5 5 。-· ·調整座 13^ •…模具安裝座 551 • · · ·周壁 131 …第二安裝部 552… ……調整座極部 14,·., …·模具軌條 5 6 η ν [ …·枢接板 2…… …夾模裝置 561 。…第一板部 21 …* •…第一模具 562 * 1 …第二板部 2 2 ' * ’ · •…第二模具 6 ^ y <. X <. …擺臂機構 …作動臂 1 ^ ίι < y ^ …·擺臂 231 …模具連接部 611… •…第一枢部 232… …·作動部 612 •…第二樞部 233… •…支點部 613 …擺臂支點部 3…… ……驅動裝置 6 2……… •…第一連桿單元 3 1 “… -…軌條 6 21 * … •…第一連桿 3 2 “… …·滑座 622 s ^ ^ •…第一端 4 ..… …·模厚調整裝置 623 ι _…第二端 41..… …·減速馬達 63 ^ s …第二連桿單元 V * ¥ ν ·Α •…調整機構 6 3 1… …第二連桿 5…… …動力機構 6 3 2… …第三端 1 * S· : •…動力源 633 …第四端 511 · 動力轴 71…… …閉模方向 11 201100235 7 2 <……開模方向 12[Main component symbol description] 1 •...Machine 52... ...·Coupling 11 Λ «· Λ ·> ο •...Base 53 ^ ^ •... Screw 12.'...Swing arm mounting plate 5 4 ..." X •...fixing seat 121 ...first mounting portion 5 5 -- · adjusting seat 13 ^ •... mold mounting seat 551 • · · · peripheral wall 131 ... second mounting portion 552 ... ... adjusting seat portion 14 , ·., .... mold rail 5 6 η ν [... pivoting plate 2 ... clamping device 561 ... first plate portion 21 ... * • ... first mold 562 * 1 ... second plate portion 2 2 ' * ' · •...Second mold 6 ^ y <. X <. ... swing arm mechanism...acting arm 1 ^ ίι < y ^ ...·swing arm 231 ...mould connecting portion 611... •...first pivot portion 232... - Actuating portion 612 • ... second pivot portion 233 ... • fulcrum portion 613 ... swing arm fulcrum portion 3 ... ... drive device 6 2 ... ... • ... first link unit 3 1 "... -... rail 6 21 * ... •...first link 3 2 "...slider 622 s ^ ^ •...first end 4 ..... .... mold thickness adjustment device 623 ι _... second end 41..... Motor 63 ^ s ...second link unit V * ¥ ν ·Α •...adjustment mechanism 6 3 1...second link 5...power mechanism 6 3 2...third end 1 * S· : •...power source 633 ... fourth end 511 · power shaft 71 ... ... closed mold direction 11 201100235 7 2 <...... mold opening direction 12