Die

Abstract

The mold comprises a fixed mold body and a movable mold body, the fixed mold body comprises a fixed mold set plate, a fixed mold core and at least one first pull row, and the first pull row and the fixed mold core are both installed on the fixed mold set plate; the movable mold comprises a movable mold set plate, a push plate, a movable mold core, an ejection mechanism, at least one second pull row and at least one third pull row, the ejection mechanism comprises an ejector pin set plate, a plurality of ejector pins and a plurality of inclined ejectors, the push plate is slidably mounted on the side, facing the fixed mold, of the movable mold set plate, the movable mold set plate and the push plate are both connected with the movable mold core, and the movable mold set plate is provided with a penetrating cavity; the ejector pin set plate is located in the penetrating cavity, one end of the ejector pin and one end of the pitched roof are connected with the ejector pin set plate, the other end of the ejector pin and the other end of the pitched roof sequentially penetrate through the movable die set plate, the push plate and the movable die core, one end of the second pull row is slidably connected with the movable die set plate, and the other end of the second pull row is rotationally connected with the push plate. One end of the third pull row is rotationally connected with the ejector pin group plate, the other end of the third pull row is slidably connected with the movable module plate, and the second pull row and the third pull row are both connected with the first pull row through clamping hooks.

Description

Technical Field

[0001] The present invention relates to the technical field of mold structures, in particular to a mold. Background Art

[0002] The air duct, also known as the bass reflex duct, is an important component of the speaker. Its function is to lead the sound waves generated behind the speaker out from the inside of the speaker, so as to strengthen the sound waves and the bass. After the air duct is installed, since the diameter of the air duct is smaller than the diameter of the speaker, there will be relatively strong sound waves rushing out of the air duct. In this way, the sound waves to the front and rear of the speaker are utilized, which improves the sound quality of the speaker. The air duct is generally injection molded.

[0003] In the existing mold, during the mold opening process for forming the air duct, each plate of the mold will be opened in sequence by a pull rod. Then, the ejector rod on the injection molding machine pushes the ejector plate assembly to eject the air duct product, and the robot can then take the air duct product out. However, the ejector rod pushing the ejector plate assembly will produce two ejection actions, which will make the ejection of the air duct product difficult. In addition, the use of the ejector rod to push the ejector plate assembly will prolong the mold opening and closing time, reducing the production capacity of the air duct. Summary of the Invention

[0004] The object of the present invention is to provide a mold to solve the technical problem that in the existing mold, during the process of opening the mold for forming an air duct, the various plates of the mold will be opened in sequence by a pull rod, and then the ejector rod on the injection molding machine pushes the ejector pin assembly plate to eject the air duct product, and the robot can then take out the air duct product. The ejector rod pushing the ejector pin assembly plate will produce two ejection actions, which will make it difficult to eject the air duct product. In addition, the use of the ejector rod to push the ejector pin assembly plate will make the mold opening and closing time too long, thereby reducing the production capacity of the air duct.

[0005] The present invention is achieved as follows: The present invention provides a mold, comprising:

[0006] A fixed die, comprising a fixed die plate, a fixed die core and at least one first pull row, wherein the first pull row and the fixed die core are both mounted on the fixed die plate;

[0007] The movable mold comprises a movable mold plate, a push plate, a movable mold core, an ejection mechanism, at least one second pull row and at least one third pull row, the ejection mechanism comprises an ejector pin plate, a plurality of ejectors and a plurality of inclined ejectors, the push plate is slidably mounted on the side of the movable mold plate facing the fixed mold, the movable mold plate and the push plate are both connected to the movable mold core, the movable mold plate is provided with a through cavity, the ejector pin plate is located in the through cavity, one end of the ejector pin and the inclined ejector are both connected to the ejector pin plate, the other ends of the ejector pin and the inclined ejector pass through the movable mold plate, the push plate and the movable mold core in sequence, one end of the second pull row is slidably connected to the movable mold plate, and the other end is rotatably connected to the push plate, one end of the third pull row is rotatably connected to the ejector pin plate, and the other end is slidably connected to the movable mold plate;

[0008] When the mold is closed, the second pull row and the third pull row are both connected to the first pull row hook, and the fixed mold core, the movable mold core and each inclined top enclose at least one product cavity; when the mold is opened, the movable mold plate first slides relative to the push plate to separate the product from part of the movable mold core, and then, under the limitation of the first pull row and the second pull row, the movable mold plate drives the push plate to move to separate from the fixed mold, and the second pull row is separated from the first pull row, after which the first pull row hooks the third pull row, and finally, the ejection mechanism performs an ejection movement under the limitation of the first pull row and the third pull row to eject the product, and the first pull row is separated from the third pull row.

[0009] Furthermore, the first pull row includes a first pull hook and at least one first fastener, the first pull hook is provided with at least one first through-hole, the fixed mold plate is provided with at least one first threaded hole, the first fastener is connected with the first threaded hole after passing through the corresponding first through-hole, the first pull hook has two first hook-shaped parts arranged on the back, and the first pull row and the second pull row are respectively hooked and connected with the two first hook-shaped parts.

[0010] Furthermore, the second pull row includes a first limiting shaft, a first adjusting member and a second pull hook, the second pull hook is provided with a first sliding hole and a second through-hole, the movable mold plate is also provided with at least one first embedded hole, and the push plate is provided with at least one second threaded hole, one end of the first limiting shaft is installed in the first embedded hole, and the other end is inserted into the first sliding hole, the first adjusting member passes through the second through-hole and is connected to the second threaded hole, the second pull hook can be rotated relative to the movable mold plate through the first adjusting member, and the second pull hook has a second hook-shaped portion that is hooked and connected to the first pull row.

[0011] Furthermore, the first sliding hole includes a first short straight hole section, a first inclined hole section and a second short straight hole section connected in sequence, the first short straight hole section is located between the second through hole and the first inclined hole section, and the distance between the first inclined hole section and the center axis of the first pull row gradually increases from the side close to the first pull row to the side away from the first pull row. When the mold is closed, the first limiting shaft runs into the first short straight hole section, and when the mold is opened, the first limiting shaft runs into the second short straight hole section.

[0012] Furthermore, the third pull row includes a second limiting shaft, a second adjusting piece and a third hook, the third hook is provided with a second sliding hole and a third through-hole, the movable mold assembly plate is also provided with at least one second embedded hole, and the ejector assembly plate is provided with at least one third threaded hole, one end of the second limiting shaft is installed in the second embedded hole, and the other end is inserted into the second sliding hole, the second adjusting piece passes through the third through-hole and is connected to the third threaded hole, the third hook can be rotated relative to the ejector assembly plate through the second adjusting piece, and the third hook has a third hook-shaped portion that is hooked and connected to the first pull row.

[0013] Furthermore, the second sliding hole includes a strip hole segment, a second inclined hole segment and a third short straight hole segment connected in sequence, the third short straight hole segment is located between the third through hole and the second inclined hole segment, and the distance between the second inclined hole segment and the center axis of the first pull row gradually decreases from the side close to the first pull row to the side away from the first pull row. When the mold is closed, the second limiting shaft runs into the strip hole segment, and when the mold is opened, the second limiting shaft runs into the third short straight hole segment.

[0014] Furthermore, the dynamic mold assembly plate includes a B plate, a bottom plate, two square irons, a plurality of second fasteners and a plurality of elastic members, the push plate and the B plate are both connected to the dynamic mold core, one end of the square iron is connected to the B plate and the other end is connected to the bottom plate, the B plate, the bottom plate and the two square irons enclose the through cavity, the push plate is also provided with a plurality of sinks and a plurality of fourth through holes respectively connected to each of the sinks, the elastic member is provided with a fifth through hole, the B plate is provided with a plurality of fourth threaded holes, the elastic member is located in the sink, the second fastener passes through the fifth through hole and the fourth through hole in sequence and is connected to the fourth threaded hole, one end of the ejector pin and the inclined ejector are both connected to the ejector pin assembly plate, the other end of the ejector pin and the inclined ejector pass through the B plate, the push plate and the dynamic mold core in sequence, the second pull row and the third pull row are both slidably connected to the B plate.

[0015] Furthermore, the inclined ejector includes an inclined rod and a ejector block protruding from the inclined rod, the B plate is further provided with a plurality of first inclined guide holes, the push plate is further provided with a plurality of second inclined guide holes, the movable mold core is provided with a plurality of third inclined guide holes and a plurality of connecting grooves respectively connected to the third inclined guide holes, one end of the inclined rod is connected to the ejector pin assembly plate, and the other end of the inclined rod passes through the first inclined guide hole, the second inclined guide hole and the third inclined guide hole in sequence, the ejector block is located in the connecting groove, and the fixed mold core, the movable mold core and the plurality of ejector blocks enclose to form the corresponding product cavity.

[0016] Furthermore, the dynamic mold core comprises a dynamic mold core plate, at least one column head and at least one annular insert, the dynamic mold core plate is mounted on the push plate, the dynamic mold core plate is penetrated by at least one mounting hole, the push plate is further provided with at least one guide hole, the inner wall of the mounting hole, the inner wall of the guide hole and the dynamic mold assembly plate are enclosed to form a concave cavity, the third inclined guide hole and the communicating groove are both provided on the dynamic mold core plate, the communicating groove is communicated with the corresponding concave cavity, the annular insert is mounted on the mounting hole, the column head is protruded on the bottom wall of the corresponding concave cavity, the column head is located in the insert and abuts against the fixed mold core, the top block and the insert are spaced apart, the fixed mold core, the inner wall of the concave cavity, the insert, the column head and a plurality of the top blocks are enclosed to form the corresponding product cavity, when the dynamic mold assembly plate is first separated from the push plate, the product is separated from the column head; and / or,

[0017] The B plate is further provided with a plurality of first through holes, the push plate is further provided with a plurality of second through holes, and the dynamic model core is further provided with a plurality of third through holes. One end of the ejector pin is connected to the ejector pin assembly plate, and the other end of the ejector pin passes through the first through hole, the second through hole and the third through hole in sequence.

[0018] Furthermore, the fixed die plate assembly includes a panel and an A plate fixed on the panel, and the fixed die core is installed on a side of the A plate away from the panel.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] In the present invention, when the mold is closed, the second pull row and the third pull row are hooked and connected with the first pull row, and the fixed mold core, the movable mold core and the inclined tops are enclosed to form at least one product cavity; when the mold is opened, the movable mold plate first slides relative to the push plate to separate the product from part of the movable mold core, and then, under the limitation of the first pull row and the second pull row, the movable mold plate drives the push plate to run to separate from the fixed mold, and the second pull row is separated from the first pull row to complete the first mold opening action. After that, the product is separated from the fixed mold, and the first pull row hooks the third pull row to complete the second mold opening. Action, finally, the ejection mechanism performs ejection movement under the limitation of the first pull row and the third pull row to eject the product, the first pull row is separated from the third pull row, completing the third mold opening action, and the product can be taken out. The entire mold opening process adopts a three-stage mold opening under the limitation of the first pull row, the second pull row and the third pull row, eliminating the ejection action of the ejector rod on the injection molding machine to push the ejector pin assembly plate to eject the product, saving ejection time, reducing the product molding cycle, increasing production capacity, reducing the unit price of the product, and reducing the manufacturing cost of the mold, which is suitable for large-scale promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the structure of a product provided by an embodiment of the present invention located in a mold;

[0022] Figure 2 for Figure 1 sectional view of

[0023] Figure 3 for Figure 1 explosion Figure 1 ;

[0024] Figure 4 for Figure 1 explosion Figure 2 ;

[0025] Figure 5 A schematic structural diagram of a second retractor provided in an embodiment of the present invention;

[0026] Figure 6 A schematic structural diagram of a third retractor provided in an embodiment of the present invention;

[0027] Figure 7 A schematic structural diagram of a fixed mold provided in an embodiment of the present invention;

[0028] Figure 8 A schematic structural diagram of a movable mold provided by an embodiment of the present invention;

[0029] Figure 9 for Figure 8 Exploded diagram;

[0030] Figure 10 A schematic diagram of the structure of the push plate and part of the dynamic mold core provided by an embodiment of the present invention after being combined;

[0031] Figure 11 for Figure 10 Exploded diagram;

[0032] Figure 12 Schematic diagram of the mold opening structure provided by the embodiment of the present invention Figure 1 ;

[0033] Figure 13 Schematic diagram of the mold opening structure provided by the embodiment of the present invention Figure 2 ;

[0034] Figure 14 Schematic diagram of the mold opening structure provided by the embodiment of the present invention Figure 3 ;

[0035] Figure 15 Schematic diagram of the mold opening structure provided by the embodiment of the present invention Figure 4 ;

[0036] Figure 16 A schematic structural diagram of a product provided by an embodiment of the present invention.

[0037] In the picture:

[0038] 10. Fixed mold; 11. Fixed mold assembly plate; 111. First threaded hole; 112. Panel; 113. Plate A; 12. Fixed mold core; 13. First pull bar; 131. First pull hook; 1311. First through hole; 1312. First hook-shaped portion; 132. First fastener; 20. Moving mold; 21. Concave cavity; 22. Back needle; 30. Moving mold assembly plate; 31. Through cavity; 32. First embedded hole; 33. Second embedded hole; 34 , plate B; 341, fourth threaded hole; 342, first oblique guide hole; 343, first through hole; 35, bottom plate; 36, square iron; 37, second fastener; 38, elastic member; 381, fifth through hole; 40, push plate; 41, second threaded hole; 42, sinking groove; 43, fourth through hole; 44, second oblique guide hole; 45, guide hole; 46, groove; 47, second through hole; 50, dynamic model core; 51, third oblique guide hole; 52 , connecting groove; 53, movable mold plate; 531, mounting hole; 54, column head; 55, insert; 56, third fastener; 57, third through hole; 60, ejector mechanism; 61, ejector assembly plate; 611, third threaded hole; 62, ejector; 63, inclined ejector; 631, inclined rod; 632, ejector block; 70, second pull row; 71, second pull hook; 711, first sliding hole; 7111, first short straight hole section; 7112, first inclined hole Segment; 7113, second short straight hole segment; 712, second through hole; 713, second hook-shaped portion; 80, third pull row; 81, second adjusting member; 82, third pull hook; 821, second sliding hole; 8211, strip hole segment; 8212, second inclined hole segment; 8213, third short straight hole segment; 822, third through hole; 823, third hook-shaped portion; 90, sprue; 100, product; 110, tube body; 120, annular undercut. DETAILED DESCRIPTION

[0039] The present invention will be further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0040] See also Figures 1 to 6 ,as well as Figures 12 to 16 As shown, an embodiment of the present invention discloses a mold, including a fixed mold 10 and a movable mold 20, the fixed mold 10 includes a fixed mold assembly 11, a fixed mold core 12 and at least one first pull row 13, the first pull row 13 and the fixed mold core 12 are both installed on the fixed mold assembly 11, wherein the number of first pull rows 13 is two, and the two first pull rows 13 are both fixed on the outer wall of the fixed mold assembly 11.

[0041] The movable mold 20 includes a movable mold plate 30, a push plate 40, a movable mold core 50, an ejection mechanism 60, at least one second pull row 70 and at least one third pull row 80, the ejection mechanism 60 includes an ejector plate 61, a plurality of ejectors 62 and a plurality of inclined ejectors 63, the push plate 40 is slidably mounted on the side of the movable mold plate 30 facing the fixed mold 10, the movable mold plate 30 and the push plate 40 are both connected to the movable mold core 50, the movable mold plate 30 is penetrated by a through cavity 31, the ejector plate 61 is located in the through cavity 31, and one end of the ejector 62 and the inclined ejector 63 are both connected to the ejector plate 61. The plate 61 is connected, and the other ends of the ejector 62 and the inclined ejector 63 pass through the movable mold plate 30, the push plate 40 and the movable mold core 50 in sequence. The ejector 62 is used to eject the water outlet 90. One end of the second pull row 70 is slidingly connected to the movable mold plate 30, and the other end is rotatably connected to the push plate 40. One end of the third pull row 80 is rotatably connected to the ejector plate 61, and the other end is slidably connected to the movable mold plate 30. There are two second pull rows 70 and two third pull rows 80. The two second pull rows 70 and the two third pull rows 80 are correspondingly arranged on the outer side wall of the movable mold 20.

[0042] When the mold is closed, the second pull row 70 and the third pull row 80 are hooked and connected with the first pull row 13, and the fixed mold core 12, the movable mold core 50 and the inclined tops 63 enclose at least one product cavity; when the mold is opened, the movable mold plate 30 first slides relative to the push plate 40 to separate the product 100 from part of the movable mold core 50, and then, under the limitation of the first pull row 13 and the second pull row 70, the movable mold plate 30 drives the push plate 40 to run and separate from the fixed mold 10, and the second pull row 70 is separated from the first pull row 13 to complete the first mold opening action. After that, the fixed mold 10 and the push plate 40 are separated. The product 100 is separated from the fixed mold 10, and the first pull row 13 hooks the third pull row 80 to complete the second mold opening action. Finally, the ejection mechanism 60 performs an ejection movement under the limitation of the first pull row 13 and the third pull row 80 to eject the product 100. The first pull row 13 is separated from the third pull row 80, completing the third mold opening action. The mold is completely opened and the product 100 can be taken out. The entire mold opening adopts a three-stage mold opening, which eliminates the ejection action of the ejector rod on the injection molding machine to push the ejector pin assembly plate 61 to eject the product 100, saving ejection time, reducing the molding cycle of the product 100, and increasing production capacity.

[0043] It should be noted that the product 100 is an air duct, which includes a trumpet-shaped tube body 110 and an annular undercut 120 protruding from one end of the tube body 110. The inclined top 63 abuts against the annular undercut 120. The number of product cavities is four, and the mold can form four products 100 at one time.

[0044] In this embodiment, the first pull row 13 includes a first pull hook 131 and at least one first fastener 132. The first pull hook 131 is provided with at least one first through hole 1311, and the fixed mold assembly plate 11 is provided with at least one first threaded hole 111. The first fastener 132 passes through the corresponding first through hole 1311 and is connected with the first threaded hole 111 to fix the first pull hook 131 on the outer wall of the fixed mold assembly plate 11. The first pull hook 131 is in the shape of "┻". The first pull hook 131 has two first hook-shaped portions 1312 arranged on the back. The first pull row 13 and the second pull row 70 are respectively hooked and connected with the two first hook-shaped portions 1312 to realize the mold closing. The first fastener 132 is a screw.

[0045] The second pull row 70 includes a first limiting shaft, a first adjusting member and a second pull hook 71. The second pull hook 71 is provided with a first sliding hole 711 and a second through hole 712. The movable mold plate 30 is also provided with at least one first embedded hole 32. The push plate 40 is provided with at least one second threaded hole 41. One end of the first limiting shaft is installed in the first embedded hole 32 and the other end is inserted into the first sliding hole 711. The first sliding hole 711 is a bent hole. The first adjusting member passes through the second through hole 712 and is connected to the second threaded hole 41. The second pull hook 71 can be rotated relative to the movable mold plate 30 through the first adjusting member. The second pull hook 71 has a second hook-shaped portion 713 that is hooked and connected to the first pull row 13. The first adjusting member is a screw.

[0046] The first sliding hole 711 includes a first short straight hole section 7111, a first inclined hole section 7112 and a second short straight hole section 7113 connected in sequence. The first short straight hole section 7111 is located between the second through hole 712 and the first inclined hole section 7112. The length directions of the first short straight hole section 7111 and the second short straight hole section 7113 are consistent with the length direction of the second pull hook 71. The lengths of the first short straight hole section 7111 and the second short straight hole section 7113 are very short, and the distance between the first inclined hole section 7112 and the central axis of the first pull row 13 gradually increases from the side close to the first pull row 13 to the side away from the first pull row 13. When the mold is closed, the first limiting shaft runs into the first short straight hole section 7111. When the mold is opened, the first limiting shaft runs from the first short straight hole section 7111 to the second short straight hole section 7113. At this time, the second pull hook 71 is tilted, and the second pull hook 71 is separated from the first pull hook 131.

[0047] The third pull row 80 includes a second limiting shaft, a second adjusting member 81 and a third hook 82. The third hook 82 is provided with a second sliding hole 821 and a third through-hole 822. The movable mold plate 30 is also provided with at least one second embedded hole 33. The ejector plate 61 is provided with at least one third threaded hole 611. One end of the second limiting shaft is installed in the second embedded hole 33 and the other end is inserted into the second sliding hole 821. The second sliding hole 821 is a bent hole. The second adjusting member 81 passes through the third through-hole 822 and is connected to the third threaded hole 611. The third hook 82 can be rotated relative to the ejector plate 61 through the second adjusting member 81. The third hook 82 has a third hook-shaped portion 823 that is hooked and connected to the first pull row 13. The second adjusting member 81 is a screw.

[0048] The second sliding hole 821 includes a strip hole section 8211, a second inclined hole section 8212 and a third short straight hole section 8213 connected in sequence. The third short straight hole section 8213 is located between the third through hole 822 and the second inclined hole section 8212. The length directions of the strip hole section 8211 and the third short straight hole section 8213 are consistent with the length direction of the third pull hook 82. The length of the strip hole section 8211 is much larger than the length of the third short straight hole section 8213, and the distance between the second inclined hole section 8212 and the central axis of the first pull row 13 gradually decreases from the side close to the first pull row 13 to the side away from the first pull row 13. When the mold is closed, the second limiting shaft runs into the strip hole section 8211. When the mold is opened, the second limiting shaft runs from the strip hole section 8211 to the third short straight hole section 8213.

[0049] Please see further Figures 7 to 16 In this embodiment, the movable mold plate 30 includes a B plate 34, a bottom plate 35, two square irons 36, a plurality of second fasteners 37, and a plurality of elastic members 38. The push plate 40 and the B plate 34 are both connected to the movable mold core 50. One end of the square iron 36 is connected to the B plate 34 and the other end is connected to the bottom plate 35. The B plate 34, the bottom plate 35, and the two square irons 36 enclose the through cavity 31. The push plate 40 is further provided with a plurality of sinking grooves 42 and a plurality of fourth through holes 43 respectively connected to each sinking groove 42. The elastic member 38 is provided with a fifth through hole 381. The B plate 34 is provided with a plurality of fourth threaded holes 341. The elastic member 38 is located in the sinking groove 42. The number of the second fastener 37, the elastic member 38, the sink 42, the fourth through-hole 43 and the fourth threaded hole 341 are all four. The second fastener 37 passes through the fifth through-hole 381 and the fourth through-hole 43 in sequence and is connected to the fourth threaded hole 341 to limit the moving distance between the movable mold plate 30 and the push plate 40. One end of the ejector pin 62 and the inclined ejector 63 are connected to the ejector pin assembly plate 61, and the other ends of the ejector pin 62 and the inclined ejector 63 pass through the B plate 34, the push plate 40 and the movable mold core 50 in sequence. The second pull row 70 and the third pull row 80 are both slidably connected to the B plate 34. The elastic member 38 is a spring and the second fastener 37 is a bolt.

[0050] The inclined ejector 63 includes an inclined rod 631 and a ejector block 632 protruding from the inclined rod 631. The inclined rod 631 is inclined. The B plate 34 is also provided with a plurality of first inclined guide holes 342. The push plate 40 is also provided with a plurality of second inclined guide holes 44. The movable mold core 50 is provided with a plurality of third inclined guide holes 51 and a plurality of connecting grooves 52 respectively connected to the third inclined guide holes 51. One end of the inclined rod 631 is connected to the ejector assembly plate 61, and the other end of the inclined rod 631 passes through the first inclined guide hole 342, the second inclined guide hole 44 and the third inclined guide hole 51 in sequence. Each product 100 is matched with four corresponding ejector blocks 632, and the ejector blocks 632 are located in the connecting grooves 52. The fixed mold core 12, the movable mold core 50 and the plurality of ejector blocks 632 enclose the corresponding product cavity. When the mold is opened, the four inclined ejectors 63 corresponding to the product cavity are pushed by the ejector assembly plate 61 to move backward, that is, toward the side away from the product 100, to separate from the product 100.

[0051] In this embodiment, the dynamic mold core 50 includes a dynamic mold core plate 53, at least one column head 54 and at least one annular insert 55. The dynamic mold core plate 53 is mounted on the push plate 40. The dynamic mold core plate 53 is provided with at least one mounting hole 531. The push plate 40 is also provided with at least one guide hole 45. The column head 54, the insert 55, the mounting hole 531 and the guide hole 45 are all four in number. The inner wall of the mounting hole 531, the inner wall of the guide hole 45 and the dynamic mold assembly plate 30 enclose a concave cavity 21. The third inclined guide hole 51 and the connecting groove 52 are both provided on the dynamic mold core plate 53. On the top, the connecting groove 52 is connected with the corresponding concave cavity 21, the annular insert 55 is installed on the mounting hole 531, the column head 54 is installed on the B plate 34, the column head 54 is protruded on the bottom wall of the corresponding concave cavity 21, the column head 54 is partially located in the insert 55 and abuts against the fixed model core 12, the top block 632 is spaced apart from the insert 55, the fixed model core 12, the inner wall of the concave cavity 21, the insert 55, the column head 54 and multiple top blocks 632 enclose the corresponding product cavity. When the movable mold assembly plate 30 is first separated from the push plate 40, the product 100 is separated from the column head 54.

[0052] In some embodiments, the movable mold core 50 also includes multiple third fasteners 56, and the push plate 40 is also provided with a groove 46. The guide hole 45 and the second inclined guide hole 44 are both provided on the bottom wall of the groove 46. The movable mold core plate 53 is installed in the groove 46 to reduce the overall thickness of the mold. The movable mold core plate 53 is fixed to the push plate 40 by multiple third fasteners 56, and the third fasteners 56 are screws.

[0053] The B plate 34 is further provided with a plurality of first through holes 343, the push plate 40 is further provided with a plurality of second through holes 47, and the dynamic model core 50 is further provided with a plurality of third through holes 57. One end of the ejector 62 is connected to the ejector assembly plate 61, and the other end of the ejector 62 passes through the first through hole 343, the second through hole 47 and the third through hole 57 in sequence. The ejector assembly plate 61 can push the ejector 62 to eject the sprue 90.

[0054] In some embodiments, the movable mold 20 also includes multiple return pins 22. The movable mold assembly plate 30, the push plate 40 and the ejector assembly plate 61 are slidably connected by corresponding return pins 22. The mold does not require an ejector rod to eject and pull back the ejector assembly plate 61. The ejection is achieved by the first pull row 13 pulling the third pull row 80 to pull up the ejector assembly plate 61 to open the mold. The return is achieved by the A plate 113 pressing four corresponding return pins 22 for return.

[0055] The fixed mold assembly 11 includes a panel 112 and an A-plate 113 fixed on the panel 112. The fixed mold core 12 is installed on the side of the A-plate 113 away from the panel 112. During the production process of the mold, there is no need for the ejector rod on the injection molding machine to push the ejector assembly 61. The injection molding machine can directly open the mold and use the first pull row 13 of the fixed mold 10 to drive the second pull row 70 and the third pull row 80 of the movable mold 20. The third pull row 80 is connected to the ejector assembly 61. The first pull row 13 will hook the third pull row 80 and pull up the ejector assembly 61 to pull out the product 100.

[0056] Working principle of the mold:

[0057] When the mold is closed, the movable mold 20 moves toward the side of the fixed mold 10, the fixed mold core 12 and the movable mold core 50 abut against each other, the second pull row 70 and the third pull row 80 are hooked and connected with the first pull row 13, and the fixed mold core 12, the movable mold core 50 and the inclined tops 63 enclose at least one product cavity;

[0058] When the mold is opened, under the drive of the injection molding machine, the movable mold assembly plate 30 in the movable mold 20 is limited by the second fastener 37 and slides relative to the push plate 40 first, and the B plate 34 on the movable mold assembly plate 30 is 12mm away from the push plate 40, so that the product 100 can be separated from the insert 55 in the movable mold core 50, and the clamping force of the product 100 on the insert 55 is removed; then, under the limitation of the first pull row 13 and the second pull row 70, the movable mold assembly plate 30 drives the push plate 40 to move to separate from the fixed mold 10, and the first pull row 13 hooks the second pull row 70 and moves in the mold opening direction. Due to the action of the first sliding hole 711 and the first limiting shaft, and subject to the action of the first adjusting member, the second pull row 70 will rotate along the first adjusting member, and the first limiting shaft rotates from the starting point to the end point, and the second pull row 70 is separated from the first pull row 13 again, and the mold opening between the fixed mold 10 and the movable mold 20 is 5mm (such as Figure 12), the first mold opening action is completed, after which the product 100 is separated from the fixed mold 10, the fixed mold 10 and the push plate 40 are separated, and the first pull row 13 and the third pull row 80 are hooked, completing the second mold opening (such as Figure 13 ), finally, the mold is opened. The ejection mechanism 60 is limited by the first pull row 13 and the third pull row 80. The third pull row 80 pulls the ejector plate 61 to perform an ejection movement. The ejection stroke is 45 mm. At this time, the product 100 has been ejected. Due to the action of the second slide hole 821 and the second limiting shaft, and subject to the action of the second adjusting member 81, the third pull row 80 will rotate along the second adjusting member 81. After moving 45 mm, the second limiting shaft rotates from the starting point to the end point, and the first pull row 13 is separated from the third pull row 80, completing the third mold opening action (such as Figure 14 and 15 ), product 100 can be taken out.

[0059] The effects of the mold are as follows:

[0060] 1. The mold with this structure does not need to add a secondary ejection structure, which reduces the mold thickness, that is, the mold cost;

[0061] 2. Compared with conventional molds, this mold structure eliminates the ejection action of the ejector pin assembly 61 on the injection molding machine, saving ejection time (about 3 seconds saved each time the mold is opened and closed), that is, reducing the molding cycle of the product 100 and increasing production capacity (the molding cycle is calculated as 40 seconds, and the daily production capacity is 24 hours = 86400 seconds, and then 86400 seconds divided by the 40-second molding cycle = 2146 pieces; after saving 3 seconds, 86400 seconds divided by 37 seconds = 2335 pieces, 2335-2146 = 189 pieces, because the mold can produce four products 100 at a time, 189 multiplied by 4 = 756 pieces, that is, 756 more pieces of production capacity can be added per day).

[0062] In summary, in the present invention, when the mold is closed, the second pull row 70 and the third pull row 80 are both hooked and connected with the first pull row 13, and the fixed mold core 12, the movable mold core 50 and the inclined tops 63 enclose at least one product cavity; when the mold is opened, the movable mold plate 30 first slides with the push plate 40 to make the product 100 separate from part of the movable mold core 50, and then, under the limitation of the first pull row 13 and the second pull row 70, the movable mold plate 30 drives the push plate 40 to run to separate from the fixed mold 10, and the second pull row 70 is separated from the first pull row 13 to complete the first mold opening action. After that, the fixed mold 10 and the push plate 40 are separated, and the first pull row 13 hooks the third pull row 8 0, complete the second mold opening action, finally, the ejection mechanism 60 performs an ejection movement under the limitation of the first pull row 13 and the third pull row 80 to eject the product 100, and the first pull row 13 is separated from the third pull row 80, completing the third mold opening action, and taking out the product 100. The entire mold opening process adopts a three-stage mold opening under the limitation of the first pull row 13, the second pull row 70 and the third pull row 80, eliminating the ejection action of the ejector rod on the injection molding machine to push the ejector pin assembly plate 61 to eject the product 100, saving ejection time, reducing the molding cycle of the product 100, increasing production capacity, reducing the unit price of the product 100, reducing the manufacturing cost of the mold, and being suitable for large-scale promotion.

[0063] The above embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. A mold, characterized in that: include: A fixed die, comprising a fixed die plate, a fixed die core and at least one first pull row, wherein the first pull row and the fixed die core are both mounted on the fixed die plate; The movable mold comprises a movable mold plate, a push plate, a movable mold core, an ejection mechanism, at least one second pull row and at least one third pull row, the ejection mechanism comprises an ejector pin plate, a plurality of ejectors and a plurality of inclined ejectors, the push plate is slidably mounted on the side of the movable mold plate facing the fixed mold, the movable mold plate and the push plate are both connected to the movable mold core, the movable mold plate is provided with a through cavity, the ejector pin plate is located in the through cavity, one end of the ejector pin and the inclined ejector are both connected to the ejector pin plate, the other ends of the ejector pin and the inclined ejector pass through the movable mold plate, the push plate and the movable mold core in sequence, one end of the second pull row is slidably connected to the movable mold plate, and the other end is rotatably connected to the push plate, one end of the third pull row is rotatably connected to the ejector pin plate, and the other end is slidably connected to the movable mold plate; When the mold is closed, the second pull row and the third pull row are both connected to the first pull row hook, and the fixed mold core, the movable mold core and each inclined top enclose at least one product cavity; when the mold is opened, the movable mold plate first slides relative to the push plate to separate the product from part of the movable mold core, and then, under the limitation of the first pull row and the second pull row, the movable mold plate drives the push plate to move to separate from the fixed mold, and the second pull row is separated from the first pull row, after which the first pull row hooks the third pull row, and finally, the ejection mechanism performs an ejection movement under the limitation of the first pull row and the third pull row to eject the product, and the first pull row is separated from the third pull row.

2. The mold according to claim 1, characterized in that The first pull row includes a first pull hook and at least one first fastener, the first pull hook is provided with at least one first through-hole, the fixed mold plate is provided with at least one first threaded hole, the first fastener is connected with the first threaded hole after passing through the corresponding first through-hole, the first pull hook has two first hook-shaped parts arranged on the back, and the first pull row and the second pull row are respectively hooked and connected with the two first hook-shaped parts.

3. The mold according to claim 1, characterized in that The second pull row includes a first limiting shaft, a first adjusting member and a second pull hook, the second pull hook is provided with a first sliding hole and a second through-hole, the movable mold plate is also provided with at least one first embedded hole, and the push plate is provided with at least one second threaded hole, one end of the first limiting shaft is installed in the first embedded hole, and the other end is inserted into the first sliding hole, the first adjusting member is connected to the second threaded hole after passing through the second through-hole, and the second pull hook can be rotated relative to the movable mold plate through the first adjusting member, and the second pull hook has a second hook-shaped portion that is hooked and connected to the first pull row.

4. The mold according to claim 3, characterized in that The first sliding hole includes a first short straight hole section, a first inclined hole section and a second short straight hole section connected in sequence. The first short straight hole section is located between the second through hole and the first inclined hole section, and the distance between the first inclined hole section and the central axis of the first pull row gradually increases from the side close to the first pull row to the side away from the first pull row. When the mold is closed, the first limiting shaft runs into the first short straight hole section. When the mold is opened, the first limiting shaft runs into the second short straight hole section.

5. The mold according to claim 1, characterized in that The third pull row includes a second limiting shaft, a second adjusting piece and a third hook. The third hook is provided with a second sliding hole and a third through-hole. The movable mold assembly plate is also provided with at least one second embedded hole. The ejector assembly plate is provided with at least one third threaded hole. One end of the second limiting shaft is installed in the second embedded hole and the other end is inserted into the second sliding hole. The second adjusting piece passes through the third through-hole and is connected to the third threaded hole. The third hook can be rotated relative to the ejector assembly plate through the second adjusting piece. The third hook has a third hook-shaped portion that is hooked and connected to the first pull row.

6. The mold according to claim 5, characterized in that The second sliding hole includes a strip hole section, a second inclined hole section and a third short straight hole section connected in sequence. The third short straight hole section is located between the third through hole and the second inclined hole section, and the distance between the second inclined hole section and the central axis of the first pull row gradually decreases from the side close to the first pull row to the side away from the first pull row. When the mold is closed, the second limiting shaft runs into the strip hole section. When the mold is opened, the second limiting shaft runs into the third short straight hole section.

7. The mold according to claim 1, characterized in that The dynamic mold assembly plate includes a B plate, a bottom plate, two square irons, multiple second fasteners and multiple elastic members, the push plate and the B plate are both connected to the dynamic mold core, one end of the square iron is connected to the B plate and the other end is connected to the bottom plate, the B plate, the bottom plate and the two square irons enclose the through cavity, the push plate is also provided with multiple sinks and multiple fourth through holes respectively connected to each of the sinks, the elastic member is provided with a fifth through hole, the B plate is provided with multiple fourth threaded holes, the elastic member is located in the sink, the second fastener passes through the fifth through hole and the fourth through hole in sequence and is connected to the fourth threaded hole, one end of the ejector pin and the inclined ejector are both connected to the ejector assembly plate, the other end of the ejector pin and the inclined ejector pass through the B plate, the push plate and the dynamic mold core in sequence, the second pull row and the third pull row are both slidably connected to the B plate.

8. The mold according to claim 7, characterized in that The inclined ejector includes an inclined rod and a ejector block protruding from the inclined rod. The B plate is also provided with a plurality of first inclined guide holes, the push plate is also provided with a plurality of second inclined guide holes, the movable mold core is provided with a plurality of third inclined guide holes and a plurality of connecting grooves respectively connected to the third inclined guide holes. One end of the inclined rod is connected to the ejector pin assembly plate, and the other end of the inclined rod passes through the first inclined guide hole, the second inclined guide hole and the third inclined guide hole in sequence. The ejector block is located in the connecting groove. The fixed mold core, the movable mold core and the plurality of ejector blocks enclose the corresponding product cavity.

9. The mold according to claim 8, characterized in that The movable mold core comprises a movable mold core plate, at least one column head and at least one annular insert, the movable mold core plate is mounted on the push plate, the movable mold core plate is penetrated by at least one mounting hole, the push plate is further provided with at least one guide hole, the inner wall of the mounting hole, the inner wall of the guide hole and the movable mold assembly plate are enclosed to form a concave cavity, the third inclined guide hole and the communicating groove are both provided on the movable mold core plate, the communicating groove is communicated with the corresponding concave cavity, the annular insert is mounted on the mounting hole, the column head is protruded on the bottom wall of the corresponding concave cavity, the column head is located in the insert and abuts against the fixed mold core, the top block and the insert are spaced apart, the fixed mold core, the inner wall of the concave cavity, the insert, the column head and the plurality of the top blocks are enclosed to form the corresponding product cavity, when the movable mold assembly plate is first separated from the push plate, the product is separated from the column head; and / or, The B plate is further provided with a plurality of first through holes, the push plate is further provided with a plurality of second through holes, and the dynamic model core is further provided with a plurality of third through holes. One end of the ejector pin is connected to the ejector pin assembly plate, and the other end of the ejector pin passes through the first through hole, the second through hole and the third through hole in sequence.

10. The mold according to claim 1, characterized in that The fixed die assembly plate includes a panel and an A plate fixed on the panel, and the fixed die core is installed on a side of the A plate away from the panel.

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