Die

Abstract

The utility model discloses a mold which comprises a fixed mold and a movable mold, the fixed mold 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 installed 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] This utility model relates to the field of mold structure technology, and in particular to a mold. Background Technology

[0002] The duct, also known as a bass reflex port, is an important component of a speaker enclosure. Its function is to draw sound waves generated behind the speaker out of the enclosure, thereby amplifying the sound waves and enhancing the bass. After installing the duct, because the diameter of the duct is smaller than the diameter of the speaker, a stronger sound wave will rush out from the duct. In this way, the sound waves generated by the speaker in both the forward and backward directions are utilized, improving the sound quality of the speaker enclosure. The duct is generally made by injection molding.

[0003] In the existing mold, during the mold opening process of forming the air duct, each mold plate will open sequentially via pull rods. Then, the ejector roller on the injection molding machine pushes the ejector pin assembly to eject the air duct product, and the robot arm can then remove the air duct product. However, the ejector roller pushing the ejector pin assembly will produce two ejection actions, which will make it difficult to eject the air duct product. In addition, using the ejector roller to push the ejector pin assembly will make the mold opening and closing time too long, reducing the production capacity of the air duct. Utility Model Content

[0004] The purpose of this utility model is to provide a mold to solve the technical problem of existing molds where, during the mold opening process of forming air ducts, each mold plate is opened sequentially by pull rods, and then the ejector roller on the injection molding machine pushes the ejector pin assembly to eject the air duct product, and then the robot arm takes out the air duct product. The ejector roller pushing the ejector pin assembly will produce two ejection actions, which will make it difficult to eject the air duct product. In addition, the use of ejector roller pushing the ejector pin assembly will make the mold opening and closing time too long, reducing the production capacity of air ducts.

[0005] This utility model is implemented as follows: This utility model provides a mold, comprising:

[0006] The fixed mold includes a fixed mold assembly plate, a fixed mold core, and at least one first pull bar, wherein the first pull bar and the fixed mold core are both mounted on the fixed mold assembly plate;

[0007] A moving mold includes a moving mold assembly plate, a push plate, a moving mold core, an ejection mechanism, at least one second pull bar, and at least one third pull bar. The ejection mechanism includes an ejector pin assembly plate, multiple ejector pins, and multiple angled ejectors. The push plate is slidably mounted on the side of the moving mold assembly plate facing the fixed mold. Both the moving mold assembly plate and the push plate are connected to the moving mold core. The moving mold assembly plate has a through cavity. The ejector pin assembly plate is located in the through cavity. One end of each ejector pin and angled ejector pin is connected to the ejector pin assembly plate. The other ends of each ejector pin and angled ejector pin pass through the moving mold assembly plate, the push plate, and the moving mold core in sequence. One end of the second pull bar is slidably connected to the moving mold assembly plate, and the other end is rotatably connected to the push plate. One end of the third pull bar is rotatably connected to the ejector pin assembly plate, and the other end is slidably connected to the moving mold assembly plate.

[0008] When the mold is closed, the second pull bar and the third pull bar are both hooked to the first pull bar. The fixed mold core, the moving mold core, and each of the inclined ejectors enclose and form at least one product cavity. When the mold is opened, the moving mold plate first slides relative to the push plate to separate the product from part of the moving mold core. Then, under the constraint of the first pull bar and the second pull bar, the moving mold plate drives the push plate to move to separate from the fixed mold. The second pull bar then separates from the first pull bar. After that, the first pull bar hooks the third pull bar. Finally, the ejection mechanism performs an ejection movement under the constraint of the first pull bar and the third pull bar to eject the product. The first pull bar separates from the third pull bar.

[0009] Furthermore, the first pull bar includes a first hook and at least one first fastener. The first hook is provided with at least one first through hole, and the fixed mold plate is provided with at least one first threaded hole. The first fastener passes through the corresponding first through hole and connects to the first threaded hole. The first hook has two back-mounted first hook-shaped parts, and the first pull bar and the second pull bar are respectively hooked and connected to the two first hook-shaped parts.

[0010] Furthermore, the second pull bar 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 moving module plate is also provided with at least one first embedding 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 embedding 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 rotate relative to the moving module plate through the first adjusting member. The second pull hook has a second hook-shaped part that is hooked and connected to the first pull bar.

[0011] Furthermore, the first sliding hole includes a first short straight hole segment, a first oblique hole segment, and a second short straight hole segment connected in sequence. The first short straight hole segment is located between the second through hole and the first oblique hole segment, and the distance between the first oblique hole segment and the central axis of the first pull strip gradually increases from the side closer to the first pull strip to the side farther away from the first pull strip. When the mold is closed, the first limiting shaft moves into the first short straight hole segment. When the mold is opened, the first limiting shaft moves into the second short straight hole segment.

[0012] Furthermore, the third pull bar includes a second limiting shaft, a second adjusting member, and a third pull hook. The third pull hook is provided with a second sliding hole and a third through hole. The moving mold plate is also provided with at least one second embedding hole. The ejector pin plate is provided with at least one third threaded hole. One end of the second limiting shaft is installed in the second embedding hole and the other end is inserted into the second sliding hole. The second adjusting member passes through the third through hole and is connected to the third threaded hole. The third pull hook can rotate relative to the ejector pin plate through the second adjusting member. The third pull hook has a third hook-shaped part that is hooked and connected to the first pull bar.

[0013] Furthermore, the second sliding hole includes a strip-shaped hole segment, a second oblique 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 oblique hole segment, and the distance between the second oblique hole segment and the central axis of the first pull strip gradually decreases from the side closer to the first pull strip to the side farther away from the first pull strip. When the mold is closed, the second limiting shaft moves into the strip-shaped hole segment. When the mold is opened, the second limiting shaft moves into the third short straight hole segment.

[0014] Furthermore, the moving module plate includes a B plate, a base plate, two square irons, multiple second fasteners, and multiple elastic elements. The push plate and the B plate are both connected to the moving module core. One end of the square iron is connected to the B plate, and the other end is connected to the base plate. The B plate, the base plate, and the two square irons enclose the through cavity. The push plate is also provided with multiple recesses and multiple fourth through holes that communicate with each recess. The elastic element is provided with a fifth through hole. The B plate is provided with multiple fourth threaded holes. The elastic element is located in the recess. The second fastener passes through the fifth through hole and the fourth through hole in sequence and then connects to the fourth threaded hole. One end of the ejector pin and the inclined ejector pin are both connected to the ejector pin assembly plate. The other end of the ejector pin and the inclined ejector pin passes through the B plate, the push plate, and the moving module core in sequence. The second pull bar and the third pull bar are both slidably connected to the B plate.

[0015] Furthermore, the inclined top includes an inclined rod and a top 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 moving mold core is provided with a plurality of third inclined guide holes and a plurality of communicating grooves respectively communicating with each of 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 top block is located in the communicating groove. The fixed mold core, the moving mold core and the plurality of top blocks surround and form the corresponding product cavity.

[0016] Further, the moving mold core includes a moving mold core plate, at least one column head, and at least one annular insert. The moving mold core plate is mounted on the push plate, and the moving mold core plate has at least one through-hole. The push plate also has at least one guide hole. The inner wall of the mounting hole, the inner wall of the guide hole, and the moving mold core plate enclose a cavity. The third oblique guide hole and the connecting groove are both provided on the moving mold core plate. The connecting groove communicates with the corresponding cavity. The annular insert is mounted on the mounting hole. The column head protrudes from the bottom wall of the corresponding cavity. The column head is located inside the insert and abuts against the fixed mold core. The top block is spaced apart from the insert. The fixed mold core, the inner wall of the cavity, the insert, the column head, and multiple top blocks enclose the corresponding product cavity. When the moving mold core plate separates from the push plate first, the product detaches from the column head; and / or,

[0017] The B plate is also provided with multiple first through holes, the push plate is also provided with multiple second through holes, the moving model core is also provided with multiple 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 module plate includes a panel and an A plate fixed on the panel, and the fixed module core is installed on the side of the A plate away from the panel.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] In this invention, when the mold is closed, the second and third pull bars are hooked to the first pull bar, and the fixed mold core, the moving mold core, and each inclined ejector form at least one product cavity. When the mold is opened, the moving mold plate first slides relative to the push plate to detach part of the moving mold core. Then, under the constraint of the first and second pull bars, the moving mold plate drives the push plate to separate from the fixed mold. The second pull bar then separates from the first pull bar, completing the first mold opening action. After that, the product separates from the fixed mold, and the first pull bar hooks onto the third pull bar, completing the second mold opening action. Finally, the ejection mechanism, constrained by the first and third pull plates, ejects the product. The first and third pull plates then separate, completing the third mold opening action, and the product can be removed. The entire mold opening process employs a three-stage mold opening method, constrained by the first, second, and third pull plates. This eliminates the need for the ejector rollers and ejector pins on the injection molding machine to eject the product, saving ejection time, reducing the product molding cycle, increasing production capacity, lowering the unit price of the product, and reducing the manufacturing cost of the mold, making it suitable for widespread adoption. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the product located inside the mold according to an embodiment of the present utility model;

[0022] Figure 2 for Figure 1 A sectional view;

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

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

[0025] Figure 5 This is a schematic diagram of the structure of the second hook provided in an embodiment of the present utility model;

[0026] Figure 6 This is a schematic diagram of the structure of the third hook provided in an embodiment of the present utility model;

[0027] Figure 7 A schematic diagram of the fixed mold provided in an embodiment of this utility model;

[0028] Figure 8 This is a schematic diagram of the structure of the moving mold provided in an embodiment of the present utility model;

[0029] Figure 9 for Figure 8 Exploded view;

[0030] Figure 10A schematic diagram of the structure of the push plate and part of the moving model core combined according to an embodiment of this utility model;

[0031] Figure 11 for Figure 10 Exploded view;

[0032] Figure 12 A schematic diagram of the mold opening structure provided in this embodiment of the utility model. Figure 1 ;

[0033] Figure 13 A schematic diagram of the mold opening structure provided in this embodiment of the utility model. Figure 2 ;

[0034] Figure 14 A schematic diagram of the mold opening structure provided in this embodiment of the utility model. Figure 3 ;

[0035] Figure 15 A schematic diagram of the mold opening structure provided in this embodiment of the utility model. Figure 4 ;

[0036] Figure 16 A schematic diagram of the structure of the product provided in the embodiment of this utility model.

[0037] In the picture:

[0038] 10. Fixed mold; 11. Fixed mold assembly plate; 111. First threaded hole; 112. Panel; 113. A plate; 12. Fixed mold core; 13. First pull bar; 131. First pull hook; 1311. First through hole; 1312. First hook-shaped part; 132. First fastener; 20. Moving mold; 21. Cavity; 22. Return pin; 30. Moving mold assembly plate; 31. Through cavity; 32. First embedding hole; 33. Second embedding hole; 34. 341. Plate B; 342. Fourth threaded hole; 343. First oblique guide hole; 3444. First through hole; 35. Base plate; 36. Square iron; 37. Second fastener; 38. Elastic element; 381. Fifth through hole; 40. Push plate; 41. Second threaded hole; 42. Countersunk groove; 43. Fourth through hole; 44. Second oblique guide hole; 45. Guide hole; 46. Groove; 47. Second through hole; 50. Moving mold core; 51. Third oblique guide hole; 52. 53. Connecting slot; 53. Moving mold core plate; 531. Mounting hole; 54. Column head; 55. Insert; 56. Third fastener; 57. Third through hole; 60. Ejection mechanism; 61. Ejector pin assembly plate; 611. Third threaded hole; 62. Ejector pin; 63. Angled ejector; 631. Angled rod; 632. Ejector block; 70. Second pull bar; 71. Second pull hook; 711. First sliding hole; 7111. First short straight hole section; 7112. First angled hole Section; 7113, Second short straight hole section; 712, Second perforation; 713, Second hook-shaped part; 80, Third pull bar; 81, Second adjusting component; 82, Third pull hook; 821, Second sliding hole; 8211, Strip-shaped hole section; 8212, Second oblique hole section; 8213, Third short straight hole section; 822, Third perforation; 823, Third hook-shaped part; 90, Sprue; 100, Product; 110, Pipe body; 120, Annular undercut. Detailed Implementation

[0039] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0040] Please see Figures 1 to 6 ,as well as Figures 12 to 16 As shown, this utility model embodiment discloses a mold, including a fixed mold 10 and a moving mold 20. The fixed mold 10 includes a fixed mold assembly plate 11, a fixed mold core 12, and at least one first pull bar 13. The first pull bar 13 and the fixed mold core 12 are both installed on the fixed mold assembly plate 11. There are two first pull bars 13, and both first pull bars 13 are fixed to the outer side wall of the fixed mold assembly plate 11.

[0041] The moving mold 20 includes a moving mold assembly plate 30, a push plate 40, a moving mold core 50, an ejection mechanism 60, at least one second pull bar 70, and at least one third pull bar 80. The ejection mechanism 60 includes an ejector pin assembly plate 61, a plurality of ejector pins 62, and a plurality of angled ejectors 63. The push plate 40 is slidably mounted on the side of the moving mold assembly plate 30 facing the fixed mold 10. Both the moving mold assembly plate 30 and the push plate 40 are connected to the moving mold core 50. The moving mold assembly plate 30 has a through cavity 31. The ejector pin assembly plate 61 is located in the through cavity 31. One end of each ejector pin 62 and angled ejector 63 is connected to the ejector pin assembly plate 61. The plate 61 is connected, and the other ends of the ejector pin 62 and the inclined ejector pin 63 pass through the moving mold plate 30, the push plate 40 and the moving mold core 50 in sequence. The ejector pin 62 is used to eject the sprue 90. One end of the second pull bar 70 is slidably connected to the moving mold plate 30 and the other end is rotatably connected to the push plate 40. One end of the third pull bar 80 is rotatably connected to the ejector pin plate 61 and the other end is slidably connected to the moving mold plate 30. There are two of each of the second pull bars 70 and the third pull bars 80. The two second pull bars 70 and the two third pull bars 80 are respectively set on the outer side wall of the moving mold 20.

[0042] When the mold is closed, the second pull bar 70 and the third pull bar 80 are both hooked together with the first pull bar 13, and the fixed mold core 12, the moving mold core 50, and each inclined ejector 63 enclose and form at least one product cavity. When the mold is opened, the moving mold plate 30 first slides relative to the ejector plate 40 to allow the product 100 to detach from part of the moving mold core 50. Then, under the constraint of the first pull bar 13 and the second pull bar 70, the moving mold plate 30 drives the ejector plate 40 to move and separate from the fixed mold 10. The second pull bar 70 then separates from the first pull bar 13, completing the first mold opening action. After that, the fixed mold 10 and the ejector plate 40 separate. Product 100 separates from the fixed mold 10. The first pull bar 13 hooks the third pull bar 80, completing the second mold opening action. Finally, the ejection mechanism 60 performs an ejection movement under the constraint of the first pull bar 13 and the third pull bar 80 to eject product 100. The first pull bar 13 and the third pull bar 80 separate, completing the third mold opening action. The mold is fully opened, and product 100 can be removed. The entire mold opening adopts a three-stage mold opening, which eliminates the ejection action of the ejector roller pushing the ejector pin assembly plate 61 on the injection molding machine to eject product 100, saving ejection time, reducing the molding cycle of product 100, and increasing production capacity.

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

[0044] In this embodiment, the first pull bar 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 connects with the first threaded hole 111 to fix the first pull hook 131 to the outer side wall of the fixed mold assembly plate 11. The first pull hook 131 is "┻" shaped and has two back-mounted first hook-shaped parts 1312. The first pull bar 13 and the second pull bar 70 are respectively hooked and connected to the two first hook-shaped parts 1312 to realize the mold closing. The first fastener 132 is a screw.

[0045] The second pull bar 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 moving module plate 30 is also provided with at least one first embedding 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 embedding 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 rotate relative to the moving module plate 30 through the first adjusting member. The second pull hook 71 has a second hook-shaped part 713 that is hooked and connected to the first pull bar 13. The first adjusting member is a screw.

[0046] The first sliding hole 711 includes a first short straight hole section 7111, a first oblique 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 oblique 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 oblique hole section 7112 and the central axis of the first pull bar 13 gradually increases from the side closer to the first pull bar 13 to the side farther away from the first pull bar 13. When the mold is closed, the first limiting shaft moves into the first short straight hole section 7111. When the mold is opened, the first limiting shaft moves from the first short straight hole section 7111 into the second short straight hole section 7113. At this time, the second pull hook 71 is inclined and separates from the first pull hook 131.

[0047] The third pull bar 80 includes a second limiting shaft, a second adjusting member 81, and a third pull hook 82. The third pull hook 82 is provided with a second sliding hole 821 and a third through hole 822. The moving mold plate 30 is also provided with at least one second embedding 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 embedding 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 pull hook 82 can rotate relative to the ejector plate 61 through the second adjusting member 81. The third pull hook 82 has a third hook-shaped part 823 that is hooked and connected to the first pull bar 13. The second adjusting member 81 is a screw.

[0048] The second sliding hole 821 includes a strip-shaped hole segment 8211, a second oblique hole segment 8212, and a third short straight hole segment 8213 connected in sequence. The third short straight hole segment 8213 is located between the third through hole 822 and the second oblique hole segment 8212. The length directions of the strip-shaped hole segment 8211 and the third short straight hole segment 8213 are consistent with the length direction of the third pull hook 82. The length of the strip-shaped hole segment 8211 is much greater than the length of the third short straight hole segment 8213. The distance between the second oblique hole segment 8212 and the central axis of the first pull bar 13 gradually decreases from the side closer to the first pull bar 13 to the side farther away from the first pull bar 13. When the mold is closed, the second limiting shaft moves into the strip-shaped hole segment 8211. When the mold is opened, the second limiting shaft moves from the strip-shaped hole segment 8211 into the third short straight hole segment 8213.

[0049] Please refer to further information. Figures 7 to 16 In this embodiment, the moving module plate 30 includes a B plate 34, a base plate 35, two square irons 36, multiple second fasteners 37, and multiple elastic elements 38. The push plate 40 and the B plate 34 are both connected to the moving module core 50. One end of each square iron 36 is connected to the B plate 34, and the other end is connected to the base plate 35. The B plate 34, the base plate 35, and the two square irons 36 enclose the through cavity 31. The push plate 40 also has multiple recesses 42 and multiple fourth through holes 43 respectively communicating with each recess 42. The elastic elements 38 have fifth through holes 381. The B plate 34 has multiple fourth threaded holes 341. The elastic elements 38 are located within the recesses 42. The number of the second fastener 37, the elastic element 38, the countersunk groove 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 then connects to the fourth threaded hole 341 to limit the movement distance between the moving mold plate 30 and the push plate 40. One end of the ejector pin 62 and the inclined ejector pin 63 are connected to the ejector pin plate 61, and the other end of the ejector pin 62 and the inclined ejector pin 63 pass through the B plate 34, the push plate 40, and the moving mold core 50 in sequence. The second pull bar 70 and the third pull bar 80 are slidably connected to the B plate 34. The elastic element 38 is a spring, and the second fastener 37 is a bolt.

[0050] The inclined ejector 63 includes an inclined rod 631 and an ejector block 632 protruding from the inclined rod 631. The inclined rod 631 is inclined. The B plate 34 is also provided with multiple first inclined guide holes 342. The push plate 40 is also provided with multiple second inclined guide holes 44. The moving mold core 50 is provided with multiple third inclined guide holes 51 and multiple connecting grooves 52 that are respectively connected to each third inclined guide hole 51. One end of the inclined rod 631 is connected to the ejector 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. The ejector blocks 632 are located in the connecting grooves 52. The fixed mold core 12, the moving mold core 50 and the multiple ejector blocks 632 surround to form the corresponding product cavity. When the mold is opened, the four inclined ejectors 63 corresponding to the product cavity are pushed by the ejector plate 61 and move backward, that is, away from the product 100, so as to separate from the product 100.

[0051] In this embodiment, the moving mold core 50 includes a moving mold core plate 53, at least one column head 54, and at least one annular insert 55. The moving mold core plate 53 is mounted on the push plate 40. The moving mold core plate 53 has at least one mounting hole 531. The push plate 40 also has at least one guide hole 45. The number of column heads 54, inserts 55, mounting holes 531, and guide holes 45 are all four. The inner wall of the mounting hole 531, the inner wall of the guide hole 45, and the moving mold assembly plate 30 form a cavity 21. The third oblique guide hole 51 and the connecting groove 52 are both provided on the moving mold core plate 53. Above, the connecting groove 52 communicates with the corresponding 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 protrudes on the bottom wall of the corresponding cavity 21, the column head 54 is partially located inside the insert 55 and abuts against the fixed mold core 12, the top block 632 is spaced apart from the insert 55, the fixed mold core 12, the inner wall of the cavity 21, the insert 55, the column head 54 and the multiple top blocks 632 surround to form the corresponding product cavity, when the moving module plate 30 separates from the push plate 40 first, the product 100 detaches from the column head 54.

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

[0053] B plate 34 is also provided with multiple first through holes 343, push plate 40 is also provided with multiple second through holes 47, moving model core 50 is also provided with multiple third through holes 57, one end of ejector pin 62 is connected to ejector pin assembly plate 61, and the other end of ejector pin 62 passes through the first through hole 343, the second through hole 47 and the third through hole 57 in sequence. Ejector pin assembly plate 61 can push ejector pin 62 to push out sprue 90.

[0054] In some embodiments, the moving mold 20 further includes a plurality of return pins 22. The moving 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 ejector pins to push out and pull back the ejector assembly plate 61. Ejection is achieved by the first pull bar 13 pulling the third pull bar 80 to pull up the ejector assembly plate 61 to open the mold. Return is achieved by the A plate 113 pressing down four corresponding return pins 22.

[0055] The fixed mold plate 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, the mold does not need to use the ejector roller on the injection molding machine to push the ejector plate 61. The mold opening action of the injection molding machine is used to drive the second pull plate 70 and the third pull plate 80 of the moving mold 20 using the first pull plate 13 of the fixed mold 10. The third pull plate 80 is connected to the ejector plate 61. The first pull plate 13 will hook the third pull plate 80 and pull up the ejector plate 61, so that the product 100 can be pulled out.

[0056] The working principle of the mold:

[0057] When the mold is closed, the moving mold 20 moves toward the fixed mold 10, the fixed mold core 12 and the moving mold core 50 abut against each other, the second pull bar 70 and the third pull bar 80 are both hooked to the first pull bar 13, and the fixed mold core 12, the moving mold core 50 and each inclined ejector 63 enclose and form at least one product cavity.

[0058] When the mold opens, driven by the injection molding machine, the moving mold assembly plate 30 in the moving mold 20, limited by the second fastener 37, first slides relative to the push plate 40. The B plate 34 on the moving mold assembly plate 30 is separated from the push plate 40 by 12mm, so that the product 100 is disengaged from the insert 55 in the moving mold core 50, and the clamping force of the product 100 on the insert 55 is removed. Then, under the constraint of the first pull bar 13 and the second pull bar 70, the moving mold assembly plate 30 drives the push plate 40 to move to separate from the fixed mold 10. The first pull bar 13 hooks the second pull bar 70 and moves it in the mold opening direction. Due to the action of the first sliding hole 711 and the first limiting shaft, and constrained by the action of the first adjusting member, the second pull bar 70 will rotate along the first adjusting member, and the first limiting shaft will rotate from the starting point to the end point. The second pull bar 70 will then separate from the first pull bar 13, and the mold opening between the fixed mold 10 and the moving mold 20 will be 5mm (e.g., Figure 12After the first mold opening action is completed, the product 100 separates from the fixed mold 10, the fixed mold 10 separates from the push plate 40, and the first pull strip 13 and the third pull strip 80 hook together, completing the second mold opening (as shown). Figure 13 Finally, the mold continues to open. Under the constraint of the first pull bar 13 and the third pull bar 80, the third pull bar 80 pulls the ejector plate 61 to perform an ejection movement with a stroke of 45mm. At this point, the product 100 has been ejected. Due to the action of the second sliding hole 821 and the second limiting shaft, and constrained by the action of the second adjusting member 81, the third pull bar 80 will rotate along the second adjusting member 81. After moving 45mm, the second limiting shaft rotates from the starting point to the ending point, and the first pull bar 13 separates from the third pull bar 80, completing the third mold opening action (as shown). Figure 14 and 15 ), and you can take out 100 of the products.

[0059] The effect of the mold is as follows:

[0060] 1. This mold structure eliminates the need for a secondary ejection structure, reducing mold thickness and thus mold cost;

[0061] 2. Compared with conventional molds, this mold structure eliminates the ejection action of the ejector roller and ejector pin assembly plate 61 on the injection molding machine, saving ejection time (approximately 3 seconds per mold opening and closing). This reduces the molding cycle of product 100 and increases production capacity. (Assuming a molding cycle of 40 seconds, the daily production capacity is 24 hours = 86,400 seconds. Dividing 86,400 seconds by the 40-second molding cycle gives 2,146 pieces. After saving 3 seconds, 86,400 seconds divided by 37 seconds equals 2,335 pieces. 2,335 - 2,146 = 189 pieces. Since the mold produces four products 100 per mold, 189 multiplied by 4 equals 756 pieces, meaning an additional 756 pieces of production capacity per day.)

[0062] In summary, in this invention, when the mold is closed, the second pull bar 70 and the third pull bar 80 are hooked and connected to the first pull bar 13, forming at least one product cavity with the fixed mold core 12, the moving mold core 50, and each inclined ejector 63. When the mold is opened, the moving mold assembly plate 30 first slides with the push plate 40 to separate the product 100 from part of the moving mold core 50. Then, under the constraint of the first pull bar 13 and the second pull bar 70, the moving mold assembly plate 30 drives the push plate 40 to move and separate from the fixed mold 10. The second pull bar 70 then separates from the first pull bar 13, completing the first mold opening action. Afterward, the fixed mold 10 and the push plate 40 separate, and the first pull bar 13 hooks onto the third pull bar. 80. After completing the second mold opening action, the ejector mechanism 60 performs an ejection movement under the constraint of the first pull bar 13 and the third pull bar 80 to eject the product 100. The first pull bar 13 and the third pull bar 80 separate, completing the third mold opening action, and the product 100 can be removed. The entire mold opening process adopts a three-stage mold opening under the constraint of the first pull bar 13, the second pull bar 70 and the third pull bar 80, which eliminates the ejection action of the ejector roller pushing the ejector pin assembly plate 61 on the injection molding machine 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 making it suitable for widespread promotion.

[0063] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A mold, characterized in that, include: The fixed mold includes a fixed mold assembly plate, a fixed mold core, and at least one first pull bar, wherein the first pull bar and the fixed mold core are both mounted on the fixed mold assembly plate; A moving mold includes a moving mold assembly plate, a push plate, a moving mold core, an ejection mechanism, at least one second pull bar, and at least one third pull bar. The ejection mechanism includes an ejector pin assembly plate, multiple ejector pins, and multiple angled ejectors. The push plate is slidably mounted on the side of the moving mold assembly plate facing the fixed mold. Both the moving mold assembly plate and the push plate are connected to the moving mold core. The moving mold assembly plate has a through cavity. The ejector pin assembly plate is located in the through cavity. One end of each ejector pin and angled ejector pin is connected to the ejector pin assembly plate. The other ends of each ejector pin and angled ejector pin pass through the moving mold assembly plate, the push plate, and the moving mold core in sequence. One end of the second pull bar is slidably connected to the moving mold assembly plate, and the other end is rotatably connected to the push plate. One end of the third pull bar is rotatably connected to the ejector pin assembly plate, and the other end is slidably connected to the moving mold assembly plate. When the mold is closed, the second pull bar and the third pull bar are both hooked to the first pull bar. The fixed mold core, the moving mold core, and each of the inclined ejectors enclose and form at least one product cavity. When the mold is opened, the moving mold plate first slides relative to the push plate to separate the product from part of the moving mold core. Then, under the constraint of the first pull bar and the second pull bar, the moving mold plate drives the push plate to move to separate from the fixed mold. The second pull bar then separates from the first pull bar. After that, the first pull bar hooks the third pull bar. Finally, the ejection mechanism performs an ejection movement under the constraint of the first pull bar and the third pull bar to eject the product. The first pull bar separates from the third pull bar.

2. The mold according to claim 1, characterized in that, The first pull bar 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 passes through the corresponding first through hole and is connected to the first threaded hole. The first pull hook has two back-mounted first hook-shaped parts. The first pull bar and the second pull bar are respectively hooked and connected to the two first hook-shaped parts.

3. The mold according to claim 1, characterized in that, The second pull bar includes a first limiting shaft, a first adjusting member, and a second pull hook. The second pull hook has a first sliding hole and a second through hole. The moving module plate also has at least one first embedding hole. The push plate has at least one second threaded hole. One end of the first limiting shaft is installed in the first embedding 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 rotate relative to the moving module plate through the first adjusting member. The second pull hook has a second hook-shaped part that is hooked and connected to the first pull bar.

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

5. The mold according to claim 1, characterized in that, The third pull bar includes a second limiting shaft, a second adjusting member, and a third pull hook. The third pull hook is provided with a second sliding hole and a third through hole. The moving mold plate is also provided with at least one second embedding hole. The ejector pin plate is provided with at least one third threaded hole. One end of the second limiting shaft is installed in the second embedding hole and the other end is inserted into the second sliding hole. The second adjusting member passes through the third through hole and is connected to the third threaded hole. The third pull hook can rotate relative to the ejector pin plate through the second adjusting member. The third pull hook has a third hook-shaped part that is hooked and connected to the first pull bar.

6. The mold according to claim 5, characterized in that, The second sliding hole includes a strip-shaped hole segment, a second oblique 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 oblique hole segment. The distance between the second oblique hole segment and the central axis of the first pull strip gradually decreases from the side closer to the first pull strip to the side farther away from the first pull strip. When the mold is closed, the second limiting shaft moves into the strip-shaped hole segment. When the mold is opened, the second limiting shaft moves into the third short straight hole segment.

7. The mold according to claim 1, characterized in that, The moving module plate includes a B plate, a base plate, two square irons, multiple second fasteners, and multiple elastic elements. The push plate and the B plate are both connected to the moving module core. One end of the square iron is connected to the B plate and the other end is connected to the base plate. The B plate, the base plate, and the two square irons enclose the through cavity. The push plate is also provided with multiple recesses and multiple fourth through holes that communicate with each recess. The elastic element is provided with a fifth through hole. The B plate is provided with multiple fourth threaded holes. The elastic element is located in the recess. The second fasteners pass through the fifth through hole and the fourth through hole in sequence and are connected to the fourth threaded hole. One end of the ejector pin and the inclined ejector pin are both connected to the ejector pin assembly plate. The other end of the ejector pin and the inclined ejector pin pass through the B plate, the push plate, and the moving module core in sequence. The second pull bar and the third pull bar are both slidably connected to the B plate.

8. The mold according to claim 7, characterized in that, The inclined top includes an inclined rod and a top 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 moving mold core is provided with a plurality of third inclined guide holes and a plurality of connecting grooves respectively communicating with each of 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 top block is located in the connecting groove. The fixed mold core, the moving mold core and the plurality of top blocks surround and form the corresponding product cavity.

9. The mold according to claim 8, characterized in that, The moving mold core includes a moving mold plate, at least one column head, and at least one annular insert. The moving mold plate is mounted on the push plate and has at least one through-hole. The push plate also has at least one guide hole. The inner wall of the mounting hole, the inner wall of the guide hole, and the moving mold plate together form a cavity. The third oblique guide hole and the connecting groove are both located on the moving mold plate. The connecting groove communicates with the corresponding cavity. The annular insert is mounted on the mounting hole. The column head protrudes from the bottom wall of the corresponding cavity and is located within the insert, abutting against the fixed mold core. The top block is spaced apart from the insert. The fixed mold core, the inner wall of the cavity, the insert, the column head, and multiple top blocks together form the corresponding product cavity. When the moving mold plate separates from the push plate first, the product detaches from the column head; and / or... The B plate is also provided with multiple first through holes, the push plate is also provided with multiple second through holes, the moving model core is also provided with multiple 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 module assembly includes a panel and an A plate fixed to the panel, with the fixed module core mounted on the side of the A plate away from the panel.

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