TWI839159B - Insert injection mold with hydraulic positioning device and insert injection system containing the same - Google Patents
Insert injection mold with hydraulic positioning device and insert injection system containing the same Download PDFInfo
- Publication number
- TWI839159B TWI839159B TW112109762A TW112109762A TWI839159B TW I839159 B TWI839159 B TW I839159B TW 112109762 A TW112109762 A TW 112109762A TW 112109762 A TW112109762 A TW 112109762A TW I839159 B TWI839159 B TW I839159B
- Authority
- TW
- Taiwan
- Prior art keywords
- hydraulic
- mold
- metal tube
- mold base
- positioning device
- Prior art date
Links
- 238000002347 injection Methods 0.000 title claims abstract description 79
- 239000007924 injection Substances 0.000 title claims abstract description 79
- 239000002184 metal Substances 0.000 claims abstract description 103
- 239000003921 oil Substances 0.000 claims abstract description 26
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 18
- 239000011248 coating agent Substances 0.000 claims abstract description 7
- 238000000576 coating method Methods 0.000 claims abstract description 7
- 239000012530 fluid Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000008878 coupling Effects 0.000 description 20
- 238000010168 coupling process Methods 0.000 description 20
- 238000005859 coupling reaction Methods 0.000 description 20
- 238000001746 injection moulding Methods 0.000 description 17
- 238000010586 diagram Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 7
- 238000007598 dipping method Methods 0.000 description 4
- 239000003292 glue Substances 0.000 description 4
- 238000007667 floating Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000011247 coating layer Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010137 moulding (plastic) Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
一種具有液壓定位裝置的埋入射出模具及含有其的埋入射出系統，適用將塑料被覆在至少一金屬管以製得一塑料被覆金屬管。該具有液壓定位裝置的埋入射出模具包含一第一模座及一第二模座。該第一模座或該第二模座包括一液壓定位裝置， 該液壓定位裝置包括至少一自由活塞及一液壓控制單元。該自由活塞具有一用來填充液壓油的油槽及一朝向該金屬管的自由端。該液壓控制單元具有一液壓迴路。在該第二模座與該第一模座合模時，藉由該液壓迴路的液壓能推動該自由活塞的自由端恆抵靠於該金屬管的一端而使該金屬管被固定在該第一模座與該第二模座間。An embedded injection mold with a hydraulic positioning device and an embedded injection system containing the same are suitable for coating plastic on at least one metal tube to produce a plastic-coated metal tube. The embedded injection mold with the hydraulic positioning device includes a first mold base and a second mold base. The first mold base or the second mold base includes a hydraulic positioning device, and the hydraulic positioning device includes at least one free piston and a hydraulic control unit. The free piston has an oil groove for filling hydraulic oil and a free end facing the metal tube. The hydraulic control unit has a hydraulic circuit. When the second mold base is molded with the first mold base, the hydraulic pressure of the hydraulic circuit can push the free end of the free piston to always press against one end of the metal tube so that the metal tube is fixed between the first mold base and the second mold base.
Description
本發明是有關於一種塑膠之成型，特別是指一種具有液壓定位裝置的埋入射出模具及含有其的埋入射出系統。The present invention relates to a plastic molding, and more particularly to an embedded injection mold with a hydraulic positioning device and an embedded injection system containing the same.
塑膠被覆鋼管具有優越的抗化學性、防腐蝕及極佳的絕緣性，可延長電氣管道在惡劣環境中的使用壽命，經常用來當成電線輸送管及電力通信保護管。Plastic coated steel pipes have excellent chemical resistance, corrosion resistance and excellent insulation properties, which can extend the service life of electrical pipelines in harsh environments. They are often used as wire transmission pipes and power communication protection pipes.
管路的接管則會使用一被覆管接頭來連結兩該塑膠被覆鋼管，現有的該被覆管接頭大多以浸漬法(dipping)或埋入射出成型法(insert molding)製得。浸漬法是先將一管接頭的兩端封口，再將該管接頭浸入含有塑膠溶液的浸漬槽中，待該管接頭黏附塑膠溶液後取出，經烘乾再冷卻成型出被覆層，最後以機械方式切除多餘的塑膠料。但浸漬法普遍存在被覆層厚度不均勻的問題。The pipe connection uses a coated pipe joint to connect the two plastic coated steel pipes. Most of the existing coated pipe joints are made by dipping or insert molding. The dipping method is to seal the two ends of a pipe joint first, then immerse the pipe joint in a dipping tank containing a plastic solution, and then take it out after the pipe joint adheres to the plastic solution, dry it, and then cool it to form a coating layer. Finally, the excess plastic is cut off mechanically. However, the dipping method generally has the problem of uneven coating thickness.
埋入射出成型法則在成型模具內放入該管接頭並合模射出被覆層，雖然埋入射出成型法能改善浸漬法之厚度不均勻的問題，但若該管接頭的長度超出公差上限，會發生無法鎖模或該管接頭被擠壓變形的異常，若該管接頭的長度低於公差下限，該管接頭則會無法固定在該成型模具內而產生卡模的問題，因此該管接頭的長度的公差範圍僅在+0.05mm/-0.15mm間才能作業，對於該管接頭的尺寸公差要求較嚴格，故作業性較不佳，因此仍有改善空間。The embedded injection molding method places the pipe joint in the molding die and closes the mold to inject the coating layer. Although the embedded injection molding method can improve the uneven thickness problem of the impregnation method, if the length of the pipe joint exceeds the upper tolerance limit, the mold cannot be locked or the pipe joint is squeezed and deformed. If the length of the pipe joint is less than the lower tolerance limit, the pipe joint cannot be fixed in the molding die and a mold jam problem occurs. Therefore, the tolerance range of the length of the pipe joint is only +0.05mm/-0.15mm. The dimensional tolerance requirements for the pipe joint are relatively strict, so the workability is poor, so there is still room for improvement.
因此，本發明的目的，即在提供一種作業性較佳的具有液壓定位裝置的埋入射出模具。Therefore, the purpose of the present invention is to provide an embedded injection mold with a hydraulic positioning device with better operability.
於是，本發明具有液壓定位裝置的埋入射出模具，適用將塑料被覆在至少一金屬管以製得一塑料被覆金屬管，該具有液壓定位裝置的埋入射出模具包含一第一模座、一第二模座、一流道單元及一頂出裝置。Therefore, the embedded injection mold with a hydraulic positioning device of the present invention is suitable for coating plastic on at least one metal tube to produce a plastic-coated metal tube. The embedded injection mold with a hydraulic positioning device includes a first mold base, a second mold base, a runner unit and an ejection device.
該第二模座與該第一模座能相對移動，該第二模座與該第一模座相配合形成至少一用來供該金屬管設置的模穴。該流道單元用來將該塑料注入該模穴並將該塑料被覆在該金屬管以製得該塑料被覆金屬管。該頂出裝置設置於該第一模座且用來頂出該塑料被覆金屬管。The second mold base and the first mold base can move relative to each other, and the second mold base and the first mold base cooperate to form at least one mold cavity for the metal tube to be set. The runner unit is used to inject the plastic into the mold cavity and coat the plastic on the metal tube to produce the plastic-coated metal tube. The ejection device is arranged on the first mold base and is used to eject the plastic-coated metal tube.
該第一模座或該第二模座包括一液壓定位裝置。該液壓定位裝置包括數量配合該金屬管的至少一自由活塞，及一用來控制該自由活塞的液壓控制單元。該自由活塞具有一用來填充液壓油的油槽，及一相反於該油槽且朝向該金屬管的自由端。該液壓控制單元具有一流體連通於該油槽的液壓迴路，其中，在該第二模座與該第一模座合模時，藉由該液壓迴路的液壓能推動該自由活塞的自由端恆抵靠於該金屬管的一端而使該金屬管被固定在該第一模座與該第二模座間。The first mold base or the second mold base includes a hydraulic positioning device. The hydraulic positioning device includes at least one free piston matched with the metal tube, and a hydraulic control unit for controlling the free piston. The free piston has an oil groove for filling hydraulic oil, and a free end opposite to the oil groove and facing the metal tube. The hydraulic control unit has a hydraulic circuit whose fluid is connected to the oil groove, wherein, when the second mold base is molded with the first mold base, the hydraulic pressure of the hydraulic circuit can push the free end of the free piston to always press against one end of the metal tube so that the metal tube is fixed between the first mold base and the second mold base.
本發明的另一目的，即在提供一種作業性較佳的具有液壓定位裝置的埋入射出系統。Another object of the present invention is to provide an embedded injection molding system with a hydraulic positioning device having better operability.
於是，本發明具有液壓定位裝置的埋入射出系統，包含一射出機及一如前述的具有液壓定位裝置的埋入射出模具。Therefore, the embedded injection molding system with a hydraulic positioning device of the present invention includes an injection molding machine and an embedded injection molding mold with a hydraulic positioning device as described above.
該射出機包括至少一射座。前述的具有液壓定位裝置的埋入射出模具的該流道單元具有至少一供該射座對準並用於注入塑料的注膠口。The injection machine includes at least one injection seat. The runner unit of the aforementioned embedded injection mold with a hydraulic positioning device has at least one injection port for the injection seat to align and for injecting plastic.
本發明的功效在於：只要該金屬管的長度公差落在+/-0.2mm的範圍內，都能藉由該液壓迴路的液壓推動該自由活塞的自由端恆抵靠於該金屬管的一端，讓該金屬管的兩端都能穩定地固定在該模穴內。本發明利用該液壓油無法壓縮的原理達到液壓鎖的作用，能適用於公差範圍較大的該金屬管，並產生雙向固定的夾置作用，所以本發明的作業性較佳。The effect of the present invention is that as long as the length tolerance of the metal tube falls within the range of +/-0.2mm, the free end of the free piston can be pushed by the hydraulic pressure of the hydraulic circuit to always lean against one end of the metal tube, so that both ends of the metal tube can be stably fixed in the mold cavity. The present invention uses the principle that the hydraulic oil cannot be compressed to achieve the effect of hydraulic locking, which can be applied to the metal tube with a larger tolerance range and produce a two-way fixed clamping effect, so the workability of the present invention is better.
在本發明被詳細描述前，應當注意在以下的說明內容中，類似的元件是以相同的編號來表示。Before the present invention is described in detail, it should be noted that similar components are represented by the same reference numerals in the following description.
參閱圖1至圖3，本發明具有液壓定位裝置的埋入射出模具800的一第一實施例，適用於安裝在一射出機9並用將塑料91被覆在至少一金屬管92以製得一塑料被覆金屬管92'，該金屬管的長度公差範圍為+/-0.2mm。本第一實施例的射出機9是以立式鎖模臥式射出機做為示例說明，且本第一實施例能同時放入兩個該金屬管92且製得兩個該塑料被覆金屬管92'，但該射出機9也能是臥式鎖模臥式射出機或立式鎖模立式射出機。每一該金屬管92具有一第一端921、一在一頂底方向Z上相反於第一端921的第二端922，及沿一軸線L延伸且兩端呈開放狀的管通道923，該軸線L平行於該頂底方向Z。該具有液壓定位裝置的埋入射出模具800包含一第一模座1、一第二模座2、一頂出裝置3及一流道單元4。Referring to Fig. 1 to Fig. 3, a first embodiment of the embedded injection mold 800 of the present invention with a hydraulic positioning device is suitable for being installed in an injection molding machine 9 and coating at least one metal tube 92 with plastic 91 to produce a plastic coated metal tube 92', the length tolerance range of the metal tube being +/-0.2mm. The injection molding machine 9 of the first embodiment is illustrated by a vertical locking mold horizontal injection molding machine, and the first embodiment can simultaneously place two of the metal tubes 92 and produce two of the plastic coated metal tubes 92', but the injection molding machine 9 can also be a horizontal locking mold horizontal injection molding machine or a vertical locking mold vertical injection molding machine. Each of the metal tubes 92 has a first end 921, a second end 922 opposite to the first end 921 in a top-bottom direction Z, and a tube channel 923 extending along an axis L and having two open ends, wherein the axis L is parallel to the top-bottom direction Z. The embedded injection mold 800 with a hydraulic positioning device includes a first mold base 1, a second mold base 2, an ejection device 3, and a runner unit 4.
參閱圖2至圖4，該第一模座1沿該頂底方向Z設置於下方且供該射出機9能移動地連接。該第二模座2設置於該第一模座1的上方，且能沿該頂底方向Z相對於該第一模座1在一開模位置(如圖2)與一合模位置(如圖3)間移動。如圖2所示，在該開模位置時，該第二模座2遠離該第一模座1，此時能在該第一模座1內放入兩個該金屬管92。如圖3所示，在該合模位置時，該第二模座2對合於該第一模座1並相配合形成兩個在一水平方向X相間隔的模穴100，該等模穴100的數量配合對應該等金屬管92的數量且用來容置該等金屬管92。Referring to FIGS. 2 to 4 , the first mold base 1 is disposed at the bottom along the top-bottom direction Z and is movably connected to the injection molding machine 9. The second mold base 2 is disposed above the first mold base 1 and is movable relative to the first mold base 1 along the top-bottom direction Z between an open mold position (as shown in FIG. 2 ) and a closed mold position (as shown in FIG. 3 ). As shown in FIG. 2 , in the open mold position, the second mold base 2 is away from the first mold base 1 , and two metal tubes 92 can be placed in the first mold base 1 . As shown in FIG. 3 , in the closed mold position, the second mold base 2 is matched with the first mold base 1 and cooperates to form two mold cavities 100 spaced apart in a horizontal direction X. The number of the mold cavities 100 corresponds to the number of the metal tubes 92 and is used to accommodate the metal tubes 92 .
該頂出裝置3安裝於該第一模座1且用來在該開模位置時頂出該等塑料被覆金屬管92'，該頂出裝置3包括數支導柱31，及一個能移動地套設於該等導柱31且沿該頂底方向Z升降的頂出板32。The ejection device 3 is mounted on the first mold base 1 and is used to eject the plastic-coated metal tubes 92' when the mold is in the open mold position. The ejection device 3 includes a plurality of guide pillars 31 and an ejection plate 32 that is movably sleeved on the guide pillars 31 and rises and falls along the top-to-bottom direction Z.
參閱圖1至圖3，詳細來說，該第一模座1包括一第一座板11、一第一模板12、兩個固定件13及兩個第一接合件14。該第一座板11供該等導柱31的一端固定。該第一模板12沿該頂底方向Z間隔設置於該第一座板11的上方且供該等導柱31的另一端固定，該第一模板12具有一朝上的上表面121、一相反於該上表面121的下表面122，及兩個間隔設置且由該上表面121貫穿至該下表面122的第一模孔123。該等固定件13連接於該頂出裝置3的頂出板32且朝上延伸並分別伸入該等第一模孔123內。該等第一接合件14分別容置於該等第一模孔123內且能卸離地螺鎖於該等固定件13，該等第一接合件14的數量對應配合該等金屬管92的數量及該等固定件13的數量 (即數量相同)，本第一實施例的每一該第一接合件14具有一朝下方凹設的第一接合部141，且該第一接合部141是凹槽。Referring to FIGS. 1 to 3 , in detail, the first mold base 1 includes a first base plate 11, a first mold plate 12, two fixing members 13 and two first joint members 14. The first base plate 11 is used to fix one end of the guide pillars 31. The first mold plate 12 is spaced apart above the first base plate 11 along the top-bottom direction Z and is used to fix the other end of the guide pillars 31. The first mold plate 12 has an upper surface 121 facing upward, a lower surface 122 opposite to the upper surface 121, and two first mold holes 123 spaced apart and penetrating from the upper surface 121 to the lower surface 122. The fixing members 13 are connected to the ejection plate 32 of the ejection device 3 and extend upward and extend into the first mold holes 123 respectively. The first coupling members 14 are respectively accommodated in the first mold holes 123 and can be removably screwed to the fixing members 13. The number of the first coupling members 14 corresponds to the number of the metal tubes 92 and the number of the fixing members 13 (i.e., the number is the same). Each of the first coupling members 14 of the first embodiment has a first coupling portion 141 recessed downward, and the first coupling portion 141 is a groove.
該第二模座2沿該頂底方向Z設置於該第一模座1的上方且朝向該第一模板12的上表面121。該第二模座2包括一第二座板21、一第二模板22及兩個第二接合件23。該第二模板22沿該頂底方向Z間隔設置於該第二座板21的下方，且具有兩個貫穿上下表面的第二模孔221。該等第二接合件23的數量配合該等金屬管92，該等第二接合件23分別設置於該等第二模孔221且用來接合該等第一接合件14，本第一實施例的每一該第二接合件23具有一朝下方凸伸且用來接合該等第一接合部141的第二接合部231，且該第二接合部231是凸柱。每一該第二接合件23與各自的第一接合件14利用凹凸配合的方式接合，在一些變化例中，兩者的凹凸形狀能夠互換。The second die base 2 is disposed above the first die base 1 along the top-bottom direction Z and faces the upper surface 121 of the first template 12. The second die base 2 includes a second base plate 21, a second template 22 and two second coupling members 23. The second template 22 is disposed below the second base plate 21 along the top-bottom direction Z and has two second die holes 221 passing through the upper and lower surfaces. The number of the second coupling members 23 matches the metal tubes 92. The second coupling members 23 are respectively disposed in the second die holes 221 and used to engage the first coupling members 14. Each of the second coupling members 23 of the first embodiment has a second coupling portion 231 protruding downward and used to engage the first coupling portions 141, and the second coupling portion 231 is a convex column. Each of the second engaging members 23 is engaged with the respective first engaging members 14 by means of a concave-convex fit. In some variations, the concave-convex shapes of the two can be interchanged.
該流道單元4包括一形成在該第一模板12且空間連通於該等模穴100與外界的注膠口41，及一形成於該第一模座1與該第二模座2且流體連通於該注膠口41的流道42。該注膠口41在該頂底方向Z上低於該第一模板12的上表面121且用來連接該射出機9的一射座(圖未示)並供該射出機9注入該塑料91。The flow channel unit 4 includes a glue injection port 41 formed on the first mold plate 12 and connected to the mold cavities 100 and the outside, and a flow channel 42 formed on the first mold base 1 and the second mold base 2 and connected to the glue injection port 41. The glue injection port 41 is lower than the upper surface 121 of the first mold plate 12 in the top direction Z and is used to connect to a nozzle seat (not shown) of the injection machine 9 and allow the injection machine 9 to inject the plastic 91.
該第二模座2還包括一液壓定位裝置5。該液壓定位裝置5包括一抵接於該第二座板21與該第二模板22間的安裝板51、兩個流體密封地設置於該安裝板51並能移動地穿設於該安裝板51與該第二模板22的自由活塞52，及一用來控制該等自由活塞52的液壓控制單元53。The second mold base 2 further includes a hydraulic positioning device 5. The hydraulic positioning device 5 includes a mounting plate 51 abutting between the second base plate 21 and the second mold plate 22, two free pistons 52 fluid-tightly disposed on the mounting plate 51 and movably penetrated between the mounting plate 51 and the second mold plate 22, and a hydraulic control unit 53 for controlling the free pistons 52.
該安裝板51的頂底兩側分別抵接於該第二座板21與該第二模板22，該安裝板51具有數量配合該等自由活塞52且貫穿頂底兩端的兩個通孔511，該等通孔511的頂側被該第二座板21蓋住，該等通孔511的底側分別空間連通於該等第二模孔221。The top and bottom sides of the mounting plate 51 are respectively in contact with the second seat plate 21 and the second mold plate 22. The mounting plate 51 has two through holes 511 that match the number of the free pistons 52 and penetrate the top and bottom ends. The top sides of the through holes 511 are covered by the second seat plate 21, and the bottom sides of the through holes 511 are respectively spatially connected to the second mold holes 221.
該等自由活塞52的數量配合該等金屬管92的數量，該等自由活塞52分別能移動地設置於該等通孔511與該等第二模孔221且底端供該等第二接合件23連接。本第一實施例的每一該自由活塞52供各自的第二接合件23能卸離地連接且能相對於所對應的第一接合件14移動。每一該自由活塞52具有一朝向該第二座板21且用來填充液壓油93的油槽521，及一相反於該油槽521且朝向所對應的金屬管92的自由端522，該自由端522供該第二接合件23能卸離地螺鎖。由每一該自由活塞52的油槽521與各自的通孔511共同界定出一體積可變的油室520，該油室520用來填充該液壓油93。具體而言，每一該自由活塞52透過O型環54及斷面呈U型的油封環55來達成流體密封。The number of the free pistons 52 matches the number of the metal tubes 92. The free pistons 52 are movably arranged in the through holes 511 and the second mold holes 221, and the bottom ends are connected to the second joints 23. Each of the free pistons 52 of the first embodiment is detachably connected to the respective second joints 23 and can move relative to the corresponding first joint 14. Each of the free pistons 52 has an oil groove 521 facing the second seat plate 21 and used to fill the hydraulic oil 93, and a free end 522 opposite to the oil groove 521 and facing the corresponding metal tube 92, and the free end 522 is provided with a screw for the second joint 23 to be detached. The oil groove 521 of each free piston 52 and the respective through holes 511 jointly define a variable volume oil chamber 520, and the oil chamber 520 is used to fill the hydraulic oil 93. Specifically, each free piston 52 achieves fluid sealing through an O-ring 54 and an oil seal ring 55 with a U-shaped cross section.
該液壓控制單元53具有一流體連通於該等油室520的液壓迴路531、一安裝於該液壓迴路531且用來控制該液壓油93的流動的液壓比例閥532，及安裝於該液壓迴路531的一液壓開關533及一止回閥534。進一步地，該第二座板21還具有流體連通於該等油室520的兩個流通口211，其中一該流通口211連接該液壓迴路531的一端且供該液壓油93流入，另一該流通口211連接該液壓迴路531的另一端且供該液壓油93流出並排氣。該液壓比例閥532會依據輸入的電信號連續且按比例地控制該液壓迴路531的壓力、速度和時間，其指令訊號經比例輸出電流給電磁線圈a/b，電磁線圈a/b按比例移動閥芯的位置，以電控方式實現對流量的控制。該液壓開關533用來控制該液壓迴路531的打開或關閉。該止回閥534用來限制該液壓油93僅能單向通過該液壓迴路531，而使該液壓迴路531維持在一預定液壓，即該液壓迴路531為單向迴路。The hydraulic control unit 53 has a hydraulic circuit 531 fluidly connected to the oil chambers 520, a hydraulic proportional valve 532 installed in the hydraulic circuit 531 and used to control the flow of the hydraulic oil 93, and a hydraulic switch 533 and a check valve 534 installed in the hydraulic circuit 531. Furthermore, the second seat plate 21 also has two flow ports 211 fluidly connected to the oil chambers 520, one of which is connected to one end of the hydraulic circuit 531 and allows the hydraulic oil 93 to flow in, and the other is connected to the other end of the hydraulic circuit 531 and allows the hydraulic oil 93 to flow out and exhaust. The hydraulic proportional valve 532 controls the pressure, speed and time of the hydraulic circuit 531 continuously and proportionally according to the input electrical signal. The command signal is proportionally output to the electromagnetic coil a/b, and the electromagnetic coil a/b moves the position of the valve core proportionally to realize the control of the flow rate in an electronically controlled manner. The hydraulic switch 533 is used to control the opening or closing of the hydraulic circuit 531. The check valve 534 is used to limit the hydraulic oil 93 to only pass through the hydraulic circuit 531 in one direction, so that the hydraulic circuit 531 is maintained at a predetermined hydraulic pressure, that is, the hydraulic circuit 531 is a one-way circuit.
如圖2至圖3所示，在該開模位置時，將該等金屬管92分別放入該等第一模孔123且套入該等第一接合件14，該等金屬管92的第二端922抵靠於該等固定件13的頂面，使該等金屬管92暫時定位在該第一模座1內。As shown in FIGS. 2 and 3 , at the mold opening position, the metal tubes 92 are respectively placed into the first mold holes 123 and inserted into the first coupling members 14 , and the second ends 922 of the metal tubes 92 abut against the top surfaces of the fixing members 13 , so that the metal tubes 92 are temporarily positioned in the first mold base 1 .
接著，手動打開該液壓開關533，並控制該液壓比例閥532使該液壓油93注滿該等油室520以排出該等通孔511內的空氣，再手動關閉該液壓開關533，同時透過該液壓比例閥532控制該等自由活塞52處於浮動狀態。然後，使該第二模座2朝下移動至該合模位置並與該第一模座1合模形成該等模穴100，同時該等第二接合件23穿入該等金屬管92內並接合於該等第一接合件14，由於此時的該等自由活塞52處於浮動狀態，透過該液壓迴路531的液壓能推動該等自由活塞52的自由端522分別恆抵靠於該等金屬管92的第一端921，使該等金屬管92的兩端分別被該等自由活塞52與該等固定件13抵靠，而使該等金屬管92能被固定在該等模穴100內。該射出機9將該塑料91注入該流道單元4並注入該等模穴100，藉此將該塑料91被覆在該等金屬管92以製得該等塑料被覆金屬管92'。Next, the hydraulic switch 533 is manually opened, and the hydraulic proportional valve 532 is controlled to fill the oil chambers 520 with the hydraulic oil 93 to discharge the air in the through holes 511, and then the hydraulic switch 533 is manually closed, and at the same time, the free pistons 52 are controlled to be in a floating state through the hydraulic proportional valve 532. Then, the second mold base 2 is moved downward to the mold closing position and is molded together with the first mold base 1 to form the mold cavities 100. At the same time, the second coupling members 23 penetrate into the metal tubes 92 and are coupled to the first coupling members 14. Since the free pistons 52 are in a floating state at this time, the hydraulic pressure of the hydraulic circuit 531 can push the free ends 522 of the free pistons 52 to rest against the first ends 921 of the metal tubes 92, respectively, so that the two ends of the metal tubes 92 are respectively abutted by the free pistons 52 and the fixing members 13, so that the metal tubes 92 can be fixed in the mold cavities 100. The injection machine 9 injects the plastic 91 into the runner unit 4 and into the mold cavities 100 , thereby coating the metal tubes 92 with the plastic 91 to produce the plastic-coated metal tubes 92 ′.
要說明的是，本第一實施例的該液壓開關533是球閥開關，利用手動方式打開或關閉，但在其他變化例中，該液壓開關533也能採用電磁閥並透過控制器PLC來打開或關閉，具有電控自動排氣的優點。It should be noted that the hydraulic switch 533 of the first embodiment is a ball valve switch, which is opened or closed manually. However, in other variations, the hydraulic switch 533 can also use an electromagnetic valve and be opened or closed through a controller PLC, which has the advantage of electronically controlled automatic exhaust.
最後，如圖4所示，該頂出裝置3的頂出板32朝上移動，並帶動該等固定件13與該等第一接合件14同時相對於該第一模板12移動以頂出該等塑料被覆金屬管92'而順利退料。本第一實施例設計為一模多穴，能增加產量。Finally, as shown in Fig. 4, the ejection plate 32 of the ejection device 3 moves upward, and drives the fixing members 13 and the first engaging members 14 to move relative to the first template 12 to eject the plastic-coated metal tubes 92' and smoothly return the material. The first embodiment is designed as a one-mold multi-cavity, which can increase production.
本發明藉由該液壓迴路531的液壓能改變每一該油室520的體積，以推動該等自由活塞52移動至其自由端522恆抵靠於該等金屬管92，讓該等金屬管92能被該等自由活塞52抵靠而而使該等金屬管92被固定在該第一模座1與該第二模座2間並穩定地固定在該等模穴100內，本發明利用該液壓油93無法壓縮的原理達到液壓鎖的作用，能改變該第一接合件14與該第二接合件23在合模時的距離，因此對於長度公差為+/-2mm的該等金屬管92，還是能產生雙向固定的夾置作用，所以本發明的作業性較佳。The present invention uses the hydraulic pressure of the hydraulic circuit 531 to change the volume of each oil chamber 520 to push the free pistons 52 to move their free ends 522 to constantly abut against the metal tubes 92, so that the metal tubes 92 can be abutted by the free pistons 52 and the metal tubes 92 are fixed between the first mold base 1 and the second mold base 2 and stably fixed in the mold cavities 100. The present invention uses the principle that the hydraulic oil 93 cannot be compressed to achieve the effect of hydraulic locking, which can change the distance between the first joint 14 and the second joint 23 when the mold is closed. Therefore, for the metal tubes 92 with a length tolerance of +/-2mm, a two-way fixed clamping effect can still be produced, so the workability of the present invention is better.
要再說明的是，本第一實施例的每一該第一接合件14透過螺栓能卸離地連接於所對應的固定件13，每一該第二接合件23透過螺栓能卸離地連接於所對應的自由活塞52，因此該等第一接合件14與該等第二接合件23能因應不同管徑的該等金屬管92而更換，本第一實施例能適用於不同管徑的該金屬管92。It should be further explained that each of the first coupling members 14 of the first embodiment is detachably connected to the corresponding fixing member 13 via bolts, and each of the second coupling members 23 is detachably connected to the corresponding free piston 52 via bolts, so that the first coupling members 14 and the second coupling members 23 can be replaced in accordance with the metal tubes 92 of different diameters, and the first embodiment can be applicable to the metal tubes 92 of different diameters.
此外，本第一實施例的注膠口41設置在該第一模座1低於該上表面121的位置，在開模或合模時，該射出機9的射座都不需要先退出，因此能節省該射出機9的進退該射座的時間，提高生產效率。當然在一些變化例中，該注膠口41也能設置在該第一模座1與該第二模座2的分模處，只是在開模前時，該射出機9的該射座必須先退出才能作業。In addition, the injection port 41 of the first embodiment is arranged at a position where the first mold base 1 is lower than the upper surface 121. When opening or closing the mold, the injection seat of the injection machine 9 does not need to be withdrawn first, thereby saving the time of the injection machine 9 in advancing and retreating the injection seat, thereby improving production efficiency. Of course, in some variations, the injection port 41 can also be arranged at the parting point between the first mold base 1 and the second mold base 2, but before opening the mold, the injection seat of the injection machine 9 must be withdrawn first before operation.
參閱圖5至圖7，本發明具有液壓定位裝置的埋入射出模具800的一第二實施例，類似於該第一實施例，其差異處在於：Referring to FIGS. 5 to 7 , a second embodiment of the embedded injection mold 800 of the present invention having a hydraulic positioning device is similar to the first embodiment, and the difference is that:
本第二實施例一次能埋入射出一個該金屬管92。該第一模座1包括該第一座板11、該第一模板12、一該第一接合件14，及該液壓定位裝置5。形成在該第一模板12的該注膠口41為45度斜角孔，透過該注膠口41的傾角設計，在該頂出裝置3頂出退料時，能便於讓該流道42的尾料脫離。The second embodiment can inject one metal tube 92 at a time. The first mold base 1 includes the first base plate 11, the first mold plate 12, a first joint member 14, and the hydraulic positioning device 5. The injection port 41 formed in the first mold plate 12 is a 45-degree bevel hole. Through the angle design of the injection port 41, when the ejection device 3 ejects and returns the material, it is convenient to let the tail material of the flow channel 42 escape.
該第二模座2包括該第二座板21、該第二模板22、一固定件24，及一該第二接合件23。該固定件24固定於該第二座板21且容置於該第二模孔221內。該第二接合件23能卸離地螺鎖於該固定件24。The second die base 2 includes the second base plate 21, the second die plate 22, a fixing member 24, and a second joint member 23. The fixing member 24 is fixed to the second base plate 21 and accommodated in the second die hole 221. The second joint member 23 is detachably screwed to the fixing member 24.
該液壓定位裝置5安裝在該頂出裝置3的頂出板32，該液壓定位裝置5包括該安裝板51、一該自由活塞52及該液壓控制單元53。該安裝板51抵接於該頂出板32的頂面且被該頂出板32帶動而能相對於該第一模板12移動，該安裝板51具有一該通孔511，該通孔511的底側被該頂出板32蓋住。該自由活塞52供該第一接合件14能卸離地螺鎖，該自由活塞52被該頂出板32帶動而能相對於該第二接合件23移動。The hydraulic positioning device 5 is mounted on the ejection plate 32 of the ejection device 3, and the hydraulic positioning device 5 includes the mounting plate 51, a free piston 52 and the hydraulic control unit 53. The mounting plate 51 abuts against the top surface of the ejection plate 32 and is driven by the ejection plate 32 to move relative to the first template 12. The mounting plate 51 has a through hole 511, and the bottom side of the through hole 511 is covered by the ejection plate 32. The free piston 52 is provided with a detachable screw for the first joint 14, and the free piston 52 is driven by the ejection plate 32 to move relative to the second joint 23.
參閱圖6至圖8，本第二實施例在作業時，先將該金屬管92放入該第一模孔123內並套入該第一接合件14，該金屬管92的第二端922抵靠於該自由活塞52的頂面。接著，透過該液壓控制單元53控制該自由活塞52處於浮動狀態，再移動該第二模座2至該合模位置，該第二接合件23穿入該金屬管92並接合於該第一接合件14，該固定件24抵靠於該金屬管92的第一端911而使該金屬管92被固定。待該射出機9將該塑料91注入該模穴100並製得該塑料被覆金屬管92'後，該頂出板32朝上移動以帶動該安裝板51與該自由活塞52相對於該第一模板12移動而能頂出該塑料被覆金屬管92'。Referring to FIGS. 6 to 8 , when the second embodiment is in operation, the metal tube 92 is first placed into the first die hole 123 and inserted into the first joint piece 14, and the second end 922 of the metal tube 92 abuts against the top surface of the free piston 52. Then, the free piston 52 is controlled to be in a floating state through the hydraulic control unit 53, and then the second die base 2 is moved to the mold closing position, and the second joint piece 23 penetrates the metal tube 92 and is joined to the first joint piece 14, and the fixing piece 24 abuts against the first end 911 of the metal tube 92 to fix the metal tube 92. After the injection molding machine 9 injects the plastic 91 into the mold cavity 100 and produces the plastic-coated metal tube 92', the ejection plate 32 moves upward to drive the mounting plate 51 and the free piston 52 to move relative to the first mold plate 12 so as to eject the plastic-coated metal tube 92'.
本第二實施例同樣藉由該液壓迴路531的液壓來改變該油室520的體積，以推動該自由活塞52移動至恆抵靠於該金屬管92的位置，而使該金屬管92被固定在該第一模座1與該第二模座2間。利用該液壓油93無法壓縮的原理達到液壓鎖的作用，只要該金屬管92的長度公差落在+/-0.2mm的範圍內都能適用，因此作業性較佳。The second embodiment also changes the volume of the oil chamber 520 by the hydraulic pressure of the hydraulic circuit 531, so as to push the free piston 52 to move to a position where it is constantly against the metal tube 92, so that the metal tube 92 is fixed between the first mold base 1 and the second mold base 2. The hydraulic lock is achieved by utilizing the principle that the hydraulic oil 93 cannot be compressed, and the metal tube 92 can be applied as long as the length tolerance falls within the range of +/-0.2mm, so the workability is better.
參閱圖9至圖11，本發明具有液壓定位裝置的埋入射出系統的一實施例，適用於將該塑料91被覆在該金屬管92以製得該塑料被覆金屬管92'。該具有液壓定位裝置的埋入射出系統包含一射出機8及一具有液壓定位裝置的埋入射出模具801。Referring to Figures 9 to 11, an embodiment of the embedded injection system with a hydraulic positioning device of the present invention is suitable for coating the plastic 91 on the metal tube 92 to produce the plastic coated metal tube 92'. The embedded injection system with a hydraulic positioning device includes an injection machine 8 and an embedded injection mold 801 with a hydraulic positioning device.
該射出機8包括兩個用來射出該塑料91的射座81。The injection molding machine 8 includes two injection molding seats 81 for injecting the plastic 91 .
該具有液壓定位裝置的埋入射出模具801，類似於前述第一實施例，其差異處在於：The embedded injection mold 801 with hydraulic positioning device is similar to the first embodiment described above, and the difference lies in:
該具有液壓定位裝置的埋入射出模具801一次能埋入射出一個該金屬管92。The embedded injection mold 801 with a hydraulic positioning device can embed and inject one metal tube 92 at a time.
該第一模座1省略該固定件13(見圖2)，該第一接合件14省略該第一接合部141(見圖2)。該第二模座2省略該第二接合件23(見圖2)。該第二模座2與該第一模座1合模時，該自由活塞52的自由端522抵靠於該金屬管92且部分穿入該金屬管92內，且該自由活塞52的自由端522與該第一接合件14的一端在該頂底方向Z上相間隔。The first mold base 1 omits the fixing member 13 (see FIG. 2 ), and the first joint member 14 omits the first joint portion 141 (see FIG. 2 ). The second mold base 2 omits the second joint member 23 (see FIG. 2 ). When the second mold base 2 is molded with the first mold base 1 , the free end 522 of the free piston 52 abuts against the metal tube 92 and partially penetrates into the metal tube 92, and the free end 522 of the free piston 52 is spaced from one end of the first joint member 14 in the top-bottom direction Z.
該流道單元4具有兩該注膠口41及兩該流道42，該等注膠口41分別供該等射座81對準並注入該塑料91。該具有液壓定位裝置的埋入射出模具801為左右雙流道的設計，並搭配雙射座設計的該射出機8由該金屬管92的左右兩側注入該塑料91，能調整出較佳的作業參數以克服大型件不易完整射出的問題，因此適用於埋入射出大尺寸的該金屬管92。The runner unit 4 has two injection ports 41 and two runners 42, and the injection ports 41 are used for the injection seats 81 to align and inject the plastic 91. The embedded injection mold 801 with a hydraulic positioning device is designed with left and right double runners, and the injection machine 8 with a double injection seat design injects the plastic 91 from the left and right sides of the metal tube 92, which can adjust the better operating parameters to overcome the problem that large parts are difficult to be completely injected, so it is suitable for embedded injection of large-sized metal tubes 92.
本實施例同樣藉由該液壓迴路531(圖中省略未示出，請見圖3)的液壓能推動該自由活塞52移動至其自由端522抵靠於該金屬管92，而使該金屬管92被固定在該第一模座1與該第二模座2間，對於長度公差為+/-2mm的該金屬管92，同樣能產生雙向固定的夾置作用，因此作業性較佳。In this embodiment, the hydraulic pressure of the hydraulic circuit 531 (omitted and not shown in the figure, see FIG. 3 ) can push the free piston 52 to move its free end 522 against the metal tube 92, so that the metal tube 92 is fixed between the first mold base 1 and the second mold base 2. For the metal tube 92 with a length tolerance of +/-2 mm, a two-way fixed clamping effect can also be produced, so the operability is better.
圖12是本發明具有液壓定位裝置的埋入射出系統的一變化例，差異處在於：FIG. 12 is a variation of the embedded injection molding system of the present invention having a hydraulic positioning device, the difference being:
該具有液壓定位裝置的埋入射出模具801形成有多個該模穴100，因此一次能埋入射出多個該金屬管92。該等模穴100分成兩組，每一組的該等模穴100透過相同的該流道42連通於相同的該注澆口41。藉此，能同時大量生產小型件的該金屬管92，具有提高產量的優點。The embedded injection mold 801 with a hydraulic positioning device is formed with a plurality of mold cavities 100, so that a plurality of metal tubes 92 can be embedded and injected at one time. The mold cavities 100 are divided into two groups, and the mold cavities 100 of each group are connected to the same injection port 41 through the same flow channel 42. In this way, a large number of small metal tubes 92 can be produced at the same time, which has the advantage of improving production.
惟以上所述者，僅為本發明的實施例而已，當不能以此限定本發明實施的範圍，凡是依本發明申請專利範圍及專利說明書內容所作的簡單的等效變化與修飾，皆仍屬本發明專利涵蓋的範圍內。However, the above is only an embodiment of the present invention and should not be used to limit the scope of implementation of the present invention. All simple equivalent changes and modifications made according to the scope of the patent application of the present invention and the content of the patent specification are still within the scope of the present patent.
1:第一模座 11:第一座板 12:第一模板 121:上表面 122:下表面 123:第一模孔 13:固定件 14:第一接合件 141:第一接合部 2:第二模座 21:第二座板 211:流通口 22:第二模板 221:第二模孔 23:第二接合件 231:第二接合部 24:固定件 5:液壓定位裝置 51:安裝板 511:通孔 52:自由活塞 520:油室 521:油槽 522:自由端 53:液壓控制單元 531:液壓迴路 532:液壓比例閥 533:液壓開關 534:止回閥 54:O型環 55:油封環 3:頂出裝置 31:導柱 32:頂出板 100:模穴 4:流道單元 41:注膠口 42:流道 8:射出機 81:射座 800,801:具有液壓定位裝置的埋入射出模具 9:射出機 91:塑料 92:金屬管 92':塑料被覆金屬管 921:第一端 922:第二端 923:管通道 93:液壓油 L:軸線 X:水平方向 Z:頂底方向 1: First die base 11: First seat plate 12: First die plate 121: Upper surface 122: Lower surface 123: First die hole 13: Fixing member 14: First joint member 141: First joint part 2: Second die base 21: Second seat plate 211: Flow port 22: Second die plate 221: Second die hole 23: Second joint member 231: Second joint part 24: Fixing member 5: Hydraulic positioning device 51: Mounting plate 511: Through hole 52: Free piston 520: Oil chamber 521: Oil groove 522: Free end 53: Hydraulic control unit 531: Hydraulic circuit 532: Hydraulic proportional valve 533: Hydraulic switch 534: Check valve 54: O-ring 55: Oil seal ring 3: Ejector 31: Guide pin 32: Ejector plate 100: Mold cavity 4: Runner unit 41: Glue injection port 42: Runner 8: Injection machine 81: Injection seat 800,801: Embedded injection mold with hydraulic positioning device 9: Injection machine 91: Plastic 92: Metal pipe 92': Plastic-coated metal pipe 921: First end 922: Second end 923: Tube channel 93: Hydraulic oil L: Axis X: Horizontal direction Z: Top and bottom direction
本發明的其他的特徵及功效，將於參照圖式的實施方式中清楚地呈現，其中： 圖1是本發明具有液壓定位裝置的埋入射出模具的第一實施例的一不完整的剖視示意圖； 圖2是一類似於圖1的剖視示意圖，說明將兩個金屬管放入一第一模座內； 圖3是一類似於圖2的剖視示意圖，說明一第二模座相對於該第一模座移動至一合模位置並製得兩個塑料被覆金屬管； 圖4是一類似於圖3的剖視示意圖，說明該第二模座遠離該第一模座，且該第一實施例的一頂出裝置將該等塑料被覆金屬管頂出退料； 圖5是本發明具有液壓定位裝置的埋入射出模具的一第二實施例的一不完整的剖視示意圖； 圖6是一類似於圖4的剖視示意圖，說明將一該金屬管放入該第一模座內； 圖7是一類似於圖6的剖視示意圖，說明該第二模座相對於該第一模座移動至該合模位置並製得一該塑料被覆金屬管； 圖8是一類似於圖7的剖視示意圖，說明該第二模座遠離該第一模座，且該頂出裝置將該塑料被覆金屬管頂出退料； 圖9是本發明具有液壓定位裝置的埋入射出系統的一實施例的一不完整的剖視示意圖，且該第二模座相對於該第一模座移動至該合模位置； 圖10是一類似於圖9的剖視示意圖，說明該第二模座遠離該第一模座，且該頂出裝置頂出該塑料被覆金屬管； 圖11是一不完整的局部剖視圖，說明該具有液壓定位裝置的埋入射出模具的一流道單元為左右雙流道的設計，並由該金屬管的左右兩側注入塑料；及 圖12是一類似於圖11的局部剖視圖，說明該具有液壓定位裝置的埋入射出系統的一變化例，能同時埋入射出多個該金屬管。 Other features and effects of the present invention will be clearly presented in the implementation method with reference to the drawings, in which: Figure 1 is an incomplete cross-sectional schematic diagram of the first embodiment of the embedded injection mold with a hydraulic positioning device of the present invention; Figure 2 is a cross-sectional schematic diagram similar to Figure 1, illustrating placing two metal tubes into a first mold base; Figure 3 is a cross-sectional schematic diagram similar to Figure 2, illustrating that a second mold base moves relative to the first mold base to a mold closing position and produces two plastic-coated metal tubes; Figure 4 is a cross-sectional schematic diagram similar to Figure 3, illustrating that the second mold base is away from the first mold base, and an ejection device of the first embodiment ejects the plastic-coated metal tubes; Figure 5 is an incomplete cross-sectional schematic diagram of a second embodiment of the embedded injection mold with a hydraulic positioning device of the present invention; Figure 6 is a cross-sectional schematic diagram similar to Figure 4, illustrating placing a metal tube into the first mold base; Figure 7 is a cross-sectional schematic diagram similar to Figure 6, illustrating that the second mold base moves relative to the first mold base to the mold closing position and produces a plastic-coated metal tube; Figure 8 is a cross-sectional schematic diagram similar to Figure 7, illustrating that the second mold base is far away from the first mold base, and the ejection device ejects the plastic-coated metal tube; Figure 9 is an incomplete cross-sectional schematic diagram of an embodiment of the embedded injection system of the present invention with a hydraulic positioning device, and the second mold base moves relative to the first mold base to the mold closing position; Figure 10 is a cross-sectional schematic diagram similar to Figure 9, illustrating that the second mold base is far away from the first mold base, and the ejection device ejects the plastic-coated metal tube; FIG. 11 is an incomplete partial cross-sectional view, illustrating that a runner unit of the embedded injection mold with a hydraulic positioning device is designed as a left and right double runner, and plastic is injected from the left and right sides of the metal tube; and FIG. 12 is a partial cross-sectional view similar to FIG. 11, illustrating a variation of the embedded injection system with a hydraulic positioning device, which can embed and inject multiple metal tubes at the same time.
1:第一模座 1: First mold base
100:模穴 100: Mold cavity
14:第一接合件 14: First joint member
141:第一接合部 141: First joint
2:第二模座 2: Second mold base
21:第二座板 21: Second seat plate
211:流通口 211: circulation port
22:第二模板 22: Second template
23:第二接合件 23: Second joint member
231:第二接合部 231: Second joint
5:液壓定位裝置 5: Hydraulic positioning device
51:安裝板 51: Mounting plate
511:通孔 511:Through hole
52:自由活塞 52: Free piston
520:油室 520: Oil chamber
521:油槽 521: Oil tank
522:自由端 522: Free end
53:液壓控制單元 53: Hydraulic control unit
531:液壓迴路 531: Hydraulic circuit
532:液壓比例閥 532: Hydraulic proportional valve
533:液壓開關 533: Hydraulic switch
534:止回閥 534: Check valve
3:頂出裝置 3: Ejector device
31:導柱 31: Guide pillar
32:頂出板 32: Ejector plate
800:具有液壓定位裝置的埋入射出模具 800: Embedded injection mold with hydraulic positioning device
91:塑料 91: Plastic
92':塑料被覆金屬管 92': Plastic-coated metal pipe
93:液壓油 93: Hydraulic oil
X:水平方向 X: horizontal direction
Z:頂底方向 Z: top-bottom direction
Claims (11)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW112109762A TWI839159B (en) | 2023-03-16 | 2023-03-16 | Insert injection mold with hydraulic positioning device and insert injection system containing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW112109762A TWI839159B (en) | 2023-03-16 | 2023-03-16 | Insert injection mold with hydraulic positioning device and insert injection system containing the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| TWI839159B true TWI839159B (en) | 2024-04-11 |
Family
ID=91618634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW112109762A TWI839159B (en) | 2023-03-16 | 2023-03-16 | Insert injection mold with hydraulic positioning device and insert injection system containing the same |
Country Status (1)
| Country | Link |
|---|---|
| TW (1) | TWI839159B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110654005A (en) * | 2019-10-29 | 2020-01-07 | 安徽宁国中鼎模具制造有限公司 | Injection molding rubber-coated rubber pipe mold |
| CN213107997U (en) * | 2020-08-31 | 2021-05-04 | 临海伟星新型建材有限公司 | Novel structure of mould core with insert for injection molding pipe fitting |
| CN112797232A (en) * | 2021-01-20 | 2021-05-14 | 中山联塑华通钢塑管有限公司 | External thread plastic lining pipe fitting and processing method thereof |
| CN216683056U (en) * | 2021-05-11 | 2022-06-07 | 常州市泓帆自动化设备有限公司 | Special-shaped pipe inserting pipe die |
-
2023
- 2023-03-16 TW TW112109762A patent/TWI839159B/en active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110654005A (en) * | 2019-10-29 | 2020-01-07 | 安徽宁国中鼎模具制造有限公司 | Injection molding rubber-coated rubber pipe mold |
| CN213107997U (en) * | 2020-08-31 | 2021-05-04 | 临海伟星新型建材有限公司 | Novel structure of mould core with insert for injection molding pipe fitting |
| CN112797232A (en) * | 2021-01-20 | 2021-05-14 | 中山联塑华通钢塑管有限公司 | External thread plastic lining pipe fitting and processing method thereof |
| CN216683056U (en) * | 2021-05-11 | 2022-06-07 | 常州市泓帆自动化设备有限公司 | Special-shaped pipe inserting pipe die |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206338261U (en) | Ultrahigh-pressure hydraulic pressure charging system with fast discharging component | |
| CN1102099C (en) | Heated nozzle manifolds in common plane interconnected through connector manifolds | |
| US20100252713A1 (en) | In-mold degassing structure and mold having the structure | |
| JP6133250B2 (en) | Method and apparatus for molding fiber reinforced resin molded product | |
| TWI839159B (en) | Insert injection mold with hydraulic positioning device and insert injection system containing the same | |
| JP2012091488A (en) | Ejection device for mold and injection molding machine using the same | |
| CN201848983U (en) | Two-plate type direct-pressure mold-locking device | |
| CN108908860B (en) | A mould for moulding plastics thermosetting plastics | |
| US20180126614A1 (en) | Cassette type mold apparatus | |
| CN102602010B (en) | RTM (resin transfer molding) one-way injection molding device for square thin-walled plate parts and method | |
| JP2006205546A (en) | Demolding apparatus for rtm molding | |
| US10737423B2 (en) | Systems and methods for sealant injection molding | |
| CN116749449A (en) | Mould injection and coating integrated mould, automobile plastic front hatch cover forming system and technology | |
| CN201432389Y (en) | Plastic ball valve mold | |
| US6413076B1 (en) | Shut-off nozzle | |
| CN201824536U (en) | Two-plate type vertical-compression mold locking device | |
| CN210372208U (en) | Faucet plastic water channel integrated structure and forming die thereof | |
| CN108748893A (en) | A kind of multirow position core_pulling demoulding mold | |
| WO2002010594A1 (en) | Manifold and method of making same | |
| CN210100813U (en) | Quick preheating device of hot pressing die | |
| CN112810113A (en) | Blow molding mold and blow molding process | |
| CN219095750U (en) | Injection molding mold for plastic framework of electric automobile | |
| CN116394444B (en) | Full-automatic assembly line of mud board is smeared to multistation PU | |
| CN107073761B (en) | The manufacturing process of composite material and the forming device of composite material | |
| CN201427386Y (en) | Cylinder-model integrated type prefill valve |