Die

Abstract

The utility model discloses a mold which comprises a front mold and a rear mold, the front mold comprises a front mold set plate, a front mold core and an inclined drawing mold set, and the front mold core and the inclined drawing mold set are both installed on the front mold set plate; the rear die comprises a rear die set plate, a rear die core, a slide die set, an inclined ejection die set and an ejection mechanism, the rear die core and the slide die set are both installed on the rear die set plate, the rear die set plate is provided with a through cavity, and the ejection mechanism comprises an ejection plate assembly, a plurality of guide rods, a plurality of first elastic pieces, a plurality of ejector pins capable of being ground and a plurality of stop pins used for adjusting the stroke of the ejector pins; one end of the first elastic piece is connected to the face, close to the rear mold core, of the top plate assembly, and the other end of the first elastic piece is connected to the inner side wall of the penetrating cavity; one ends of the inclined ejection module and the ejector pin are connected with the ejection plate assembly, the other ends of the inclined ejection module and the ejector pin sequentially penetrate through the rear module plate and the rear mold core, and the multiple stop pins are detachably installed on the face, away from the rear mold core, of the ejection plate assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of die structures, and particularly relates to a die. Background Art

[0002] During the production process of the die, the ejector rod on the injection molding machine pushes forward to drive the top plate assembly in the ejection mechanism to move forward. The top plate assembly drives the ejector pin to move forward. At this time, the spring in the ejection mechanism is in a compressed state. For the top plate assembly, it is also affected by the elastic force of the spring. After the product is taken out, the ejector rod returns to its original position. When the ejector rod returns to its original position, the top plate assembly no longer has the ejecting force of the ejector rod. At this time, because the spring is in a compressed state and has a restoring force, it will bounce the top plate assembly back to its original position.

[0003] However, since the plates in the top plate assembly are relatively thin, when the die is in the ejection state, the top plate assembly will be subjected to the forward ejecting force of the ejector rod. At the same time, the top plate assembly is subjected to the downward elastic force of the spring at both ends, which will cause the top plate assembly to arch and deform easily. The deformation amount will become larger after a long time of production. When the deformation of the top plate assembly is large, the distance between the ejector pin fixed on the top plate assembly and the product will change, resulting in more or less glue at the position of the ejector pin mark on the product, that is, unevenness. Seriously, it will affect the sealing performance of the product. Moreover, when the top plate assembly returns to its original position, the impact noise between the top plate assembly and the middle bottom plate of the die is very large, resulting in a very poor working environment for workers. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a die to solve the technical problems in the existing die. Since the plates in the top plate assembly are relatively thin, when the die is in the ejection state, the top plate assembly will be subjected to the forward ejecting force of the ejector rod. At the same time, the top plate assembly is subjected to the downward elastic force of the spring at both ends, which will cause the top plate assembly to arch and deform easily. When the deformation of the top plate assembly is large, the distance between the ejector pin fixed on the top plate assembly and the product will change, resulting in more or less glue at the position of the ejector pin mark on the product, that is, unevenness. Seriously, it will affect the sealing performance of the product. Moreover, when the top plate assembly returns to its original position, the impact noise between the top plate assembly and the middle bottom plate of the die is very large, resulting in a very poor working environment for workers.

[0005] The utility model is implemented as follows:

[0006] The utility model provides a die, including:

[0007] A front die, including a front die template, a front die core, and an inclined ejection module. The front die core and the inclined ejection module are both installed on one side of the front die template;

[0008] The rear mold includes a rear mold plate, a rear mold core, a slider module, a lifter module, and an ejection mechanism. The rear mold core and the slider module are both installed on one side of the rear mold plate. The rear mold plate is provided with a through cavity. The ejection mechanism includes a plurality of guide rods, a plurality of first elastic members, a top plate assembly for connecting with a ejector rod in an injection molding machine, a plurality of ejector pins that can all be ground, and a plurality of ejector stops for adjusting the stroke of the ejector pins. Two ends of the guide rods are respectively connected to two inner walls on both sides of the through cavity. The top plate assembly is slidably installed on the guide rods. One end of the first elastic member is connected to a side of the top plate assembly close to the rear mold core, and the other end is connected to the inner side wall of the through cavity. One ends of the lifter module and the ejector pins are both connected to the top plate assembly, and the other ends both pass through the rear mold plate and the rear mold core in sequence. The plurality of ejector stops are detachably installed on a side of the top plate assembly away from the rear mold core;

[0009] When the mold is closed, the lifter and slider module are connected and drive the slider module to move towards the side close to the rear mold core. The front mold core, a part of the rear mold core, and a part of the slider module enclose to form a first product cavity. The front mold core, the lifter module, another part of the rear mold core, and another part of the slider module enclose to form a second product cavity. When the mold is opened, the front mold plate is separated from the rear mold plate. The lifter and slider module drive the slider module to move towards the side away from the rear mold core. The top plate assembly can push the ejector pins and the lifter module to eject the corresponding products in the first product cavity and the second product cavity.

[0010] Further, the ejection mechanism further includes a plurality of first fasteners. The ejector stop is provided with a counterbore, and the top plate assembly is provided with a plurality of first threaded holes. The first fasteners pass through the counterbore and are threadedly connected to the first threaded holes.

[0011] Further, the ejection mechanism further includes at least one limit post for limiting the stroke of the top plate assembly. The limit post is located in the through cavity and is detachably installed on a side of the top plate assembly facing the rear mold core.

[0012] Further, the inclined ejection module includes a first shovel base and a second shovel base, both the first shovel base and the second shovel base are fixed on the front mold plate, the slider module includes a first slider seat and a second slider seat, both the first slider seat and the second slider seat are slidably mounted on the rear mold plate, the first slider seat is provided with a first sliding hole, the second slider seat is provided with a second sliding hole, when the mold is closed, the first shovel base is inserted into the first sliding hole, the second shovel base is inserted into the second sliding hole, the front mold core, the first slider seat and a part of the rear mold core enclose to form the first product cavity, the front mold core, the lifter module, the second slider seat and another part of the rear mold core enclose to form the second product cavity.

[0013] Further, the first slider seat includes a first sliding seat, at least one second elastic member and a first positioning block for defining the stroke of the first sliding seat, the first sliding seat is slidably mounted on the rear mold plate, the first sliding hole is provided on the first sliding seat, one end of the second elastic member is connected to the first sliding seat and the other end is connected to the rear mold core, the first positioning block is fixed on the rear mold plate, when the mold is closed, the front mold core, the first sliding seat and a part of the rear mold core enclose to form the first product cavity, the second elastic member is in a compressed state, when the mold is opened, the first shovel base drives the first sliding seat to move away from the rear mold core side, and the second elastic member elastically acts on the first sliding seat to make the first sliding seat press against the first positioning block.

[0014] Further, the second row position seat includes a second sliding seat, an insert, a second positioning block, a bracket, a second fastener, and a third elastic member. The second sliding seat is slidably mounted on the rear mold plate. The second sliding seat has a second threaded hole, the second sliding hole, and an inclined chute. The second positioning block is mounted on the rear mold core and encloses with the rear mold core to form an inclined third sliding hole. The distance from the bottom wall of the chute to the top plate assembly gradually increases from the end close to the rear mold core to the end away from the rear mold core. The distance from the bottom wall of the third sliding hole to the top plate assembly gradually decreases from the end close to the rear mold core to the end away from the rear mold core. One end of the insert is slidably connected to the chute, and the other end is slidably mounted on the third sliding hole. The bracket is fixed on the rear mold plate, and the bracket is provided with a first through hole. The third elastic member is annular. The second fastener sequentially passes through the third elastic member and the first through hole and is threadedly connected to the second threaded hole. When the mold is closed, the front mold core, the inclined ejector module, the insert, and another part of the rear mold core enclose to form the second product cavity, and the third elastic member is in a compressed state. When the mold is opened, the second lifter drives the second sliding seat to move away from the rear mold core side, and the second sliding seat drives the insert to tilt downward, so that the product in the second product cavity can form an undercut after demolding.

[0015] Further, the rear mold plate includes a rear template, a bottom plate, and two spacer blocks. The two ends of the spacer blocks are respectively connected to the rear template and the bottom plate. The rear template, the bottom plate, and the two spacer blocks enclose to form the through cavity. The rear mold core and the row position module are both mounted on the rear template. One ends of the inclined ejector module and the ejector pin are both mounted on the top plate assembly, and the other ends sequentially pass through the rear template and the rear mold core.

[0016] Further, the inclined ejector module includes a first inclined ejector and at least one second inclined ejector. The rear template is provided with a second through hole, at least one third through hole, and a plurality of fourth through holes. The rear mold core is provided with a fifth through hole, at least one sixth through hole, and a plurality of seventh through holes. One end of the first inclined ejector is rotatably connected to the top plate assembly, and the other end sequentially passes through the second through hole and the fifth through hole. One end of the second inclined ejector is rotatably connected to the top plate assembly, and the other end sequentially passes through the third through hole and the sixth through hole. One end of the ejector pin is fixedly connected to the top plate assembly, and the other end sequentially passes through the fourth through hole and the seventh through hole.

[0017] Further, the rear mold core includes a first module, a second module, two first forming blocks, and two second forming blocks. The first module and the second module are both installed on the rear template. The first module is provided with a first clamping hole, and the second module is provided with a second clamping hole. The two first forming blocks are both fixed in the first clamping hole, and the two second forming blocks are both fixed in the second clamping hole. The seventh through holes are provided on the first module, the second module, the first forming blocks, and the second forming blocks. The fifth through hole and the sixth through hole are both provided on the second module. The front mold core, the first module, the two first forming blocks, and a part of the slider module enclose to form the first product cavity. The front mold core, the lifter module, the second module, the two second forming blocks, and another part of the slider module enclose to form the second product cavity.

[0018] Further, the front mold plate includes a panel and a front template connected to the panel. The front mold core and the inclined ejection module are both fixed on the front template.

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

[0020] In the present utility model, a plurality of trash pins are detachably installed on the top plate assembly of the ejection mechanism. The trash pins are located on the side of the top plate assembly away from the rear mold core. When the top plate assembly is bent, the moving position of the top plate assembly in the through cavity can be changed by adding trash pins, thereby adjusting the stroke of the ejector pin. The too-long ejector pin can be ground to make the ejector pin adapt to the needs of the mold, avoiding too much or too little glue at the ejector pin mark position of the product and enhancing the sealing performance of the product. Moreover, the contact between the top plate assembly and the inner wall of the through cavity is changed from surface contact to multiple point contacts, and the contact area is reduced, which can reduce the noise generated by the impact between the top plate assembly and the rear mold plate, thereby improving the working environment of workers. Description of the Drawings

[0021] Figure 1 is a schematic structural diagram of the product provided by the embodiment of the present utility model located in the mold;

[0022] Figure 2 is Figure 1 an exploded view of;

[0023] Figure 3 is a schematic structural diagram of the front mold provided by the embodiment of the present utility model;

[0024] Figure 4 is a schematic structural diagram of the rear mold provided by the embodiment of the present utility model;

[0025] Figure 5 is a schematic structural diagram of the rear mold provided by the embodiment of the present utility model after removing the slider module;

[0026] Figure 6 is Figure 5 exploded view;

[0027] Figure 7 is the structural schematic diagram of the waste nail provided by the embodiment of the present utility model installed on the top plate assembly;

[0028] Figure 8 is Figure 7 exploded view;

[0029] Figure 9 is the exploded view of the rear mold provided by the embodiment of the present utility model;

[0030] Figure 10 is the structural schematic diagram of the first sliding seat provided by the embodiment of the present utility model;

[0031] Figure 11 is the structural schematic diagram of the rear mold core provided by the embodiment of the present utility model;

[0032] Figure 12 is Figure 11 exploded view;

[0033] Figure 13 is the structural schematic diagram of the first molding part provided by the embodiment of the present utility model;

[0034] Figure 14 is the structural schematic diagram of the second molding part provided by the embodiment of the present utility model.

[0035] In the figure:

[0036] 10. Front mold; 11. Front mold template; 111. Panel; 112. Front template; 12. Front mold core; 13. Oblique drawing module; 131. First shovel base; 1311. First inclined surface; 132. Second shovel base; 1321. Third inclined surface; 20. Rear mold; 30. Rear mold template; 31. Through cavity; 32. First avoidance groove; 33. Second avoidance groove; 34. Rear template; 341. Second perforation; 342. Third perforation; 343. Fourth perforation; 35. Bottom plate; 36. Square iron; 40. Rear mold core; 41. Fifth perforation; 42. Sixth perforation; 43. Seventh perforation; 44. First module; 441. First clamping hole; 45. Second module; 451. Second clamping hole; 46. First forming block; 47. Second forming block; 50. Slide block module; 51. First slide block seat; 511. First sliding hole; 5111. Second inclined surface; 512. First sliding seat; 5121. Protruding part; 5122. Embedded groove; 513. Second elastic member; 514. First positioning block; 52. Second slide block seat; 521. Second sliding hole; 5211. Fourth inclined surface; 522. Second sliding seat; 5221. Second threaded hole; 5222. Slide groove; 523. Insert; 524. Second positioning block; 525. Bracket; 5251. First perforation; 526. Second fastener; 527. Third elastic member; 528. Third sliding hole; 60. Lifter module; 61. First lifter; 62. Second lifter; 70. Ejection mechanism; 71. Top plate assembly; 711. First threaded hole; 72. Guide rod; 73. First elastic member; 74. Ejector pin; 75. Sprue pin; 751. Counterbore; 76. First fastener; 77. Limit post; 80. First product cavity; 90. Second product cavity; 100. First forming member; 110. Socket; 200. Second forming member; 210. Undercut; 300. Sprue. Detailed implementation manners

[0037] Next, in combination with the accompanying drawings and specific implementation manners, the present utility model will be further described. It should be noted that, on the premise of no conflict, the following described embodiments or technical features can be arbitrarily combined to form new embodiments.

[0038] Please refer to Figures 1 to 8 As shown, an embodiment of the present utility model discloses a mold, including a front mold 10 and a rear mold 20. The front mold 10 includes a front mold template 11, a front mold core 12, and an oblique drawing module 13. The front mold core 12 and the oblique drawing module 13 are both installed on one surface of the front mold template 11.

[0039] The rear mold 20 includes a rear mold template 30, a rear mold core 40, a slider module 50, a lifter module 60, and an ejection mechanism 70. The rear mold core 40 and the slider module 50 are both installed on one side of the rear mold template 30 facing the front mold template 11. The rear mold template 30 is provided with a through cavity 31. The ejection mechanism 70 includes a top plate assembly 71, a plurality of guide rods 72, a plurality of first elastic members 73, a plurality of ejector pins 74 that can all be ground, and a plurality of ejector pads 75 that are all used to adjust the stroke of the ejector pins 74. The top plate assembly 71 is used to connect with the ejector rod in the injection molding machine and the ejector rod provides the ejection force. The top plate assembly 71, the guide rods 72, the first elastic members 73, and the ejector pads 75 are all located in the through cavity 31. The two ends of the guide rods 72 are respectively connected to the inner walls on both sides of the through cavity 31. The top plate assembly 71 is slidably installed on the guide rods 72. The first elastic member 73 is annular. The first elastic member 73 can be sleeved on the guide rods 72. One end of the first elastic member 73 is connected to the side of the top plate assembly 71 close to the rear mold core 40, and the other end is connected to the inner side wall on one side of the through cavity 31. The first elastic member 73 is used for the top plate assembly 71 to return. One end of the lifter module 60 and the ejector pins 74 are both connected to the top plate assembly 71, and the other ends both pass through the rear mold template 30 and the rear mold core 40 in sequence. A plurality of ejector pads 75 are detachably installed on the side of the top plate assembly 71 away from the rear mold core 40. The first elastic member 73 is a spring, and the top plate assembly 71 is two connected and fixed plate bodies.

[0040] When the mold is closed, the rear mold 20 moves towards the front mold 10 side. The oblique withdrawal module 13 contacts and is slidably connected to the slider module 50. The oblique withdrawal module 13 can drive the slider module 50 to move towards the side close to the rear mold core 40. The front mold core 12, a part of the rear mold core 40, and a part of the slider module 50 enclose to form a first product cavity 80. The front mold core 12, the lifter module 60, another part of the rear mold core 40, and another part of the slider module 50 enclose to form a second product cavity 90. The first product cavity 80 and the second product cavity 90 form two products with different structures. When the mold is opened, the front mold template 11 is separated from the rear mold template 30. The oblique withdrawal module 13 drives the slider module 50 to move towards the side away from the rear mold core 40. The top plate assembly 71 can push the ejector pins 74 and the lifter module 60 to eject the corresponding products in the first product cavity 80 and the second product cavity 90. The product in the first product cavity 80 is defined as the first molded part 100, and the product in the second product cavity 90 is defined as the second molded part 200.

[0041] It should be noted that, such as Figure 1In the shown direction, the ejector rod pushes upwards, and the top plate assembly 71 drives the lifter module 60 and the ejector pin 74 to move upwards synchronously by 35 mm. At this time, the first elastic member 73 is in a compressed state. For the top plate assembly 71, it is also subjected to the elastic force of the first elastic member 73. After the product is taken out, the ejector rod returns to its original position; when the ejector rod returns to its original position, the top plate assembly 71 no longer has the upward ejecting force of the ejector rod. At this time, because the first elastic member 73 is in a compressed state and has a resilience force, it will spring the top plate assembly 71 back to its original position. In the mold ejection state, the top plate assembly 71 is subjected to the upward ejecting force of the ejector rod, and at the same time, both ends of the top plate assembly 71 are subjected to the downward elastic force of the spring, which will cause the top plate assembly 71 to bend and deform easily. When the top plate assembly 71 bends, additional ejector stoppers 75 are provided to adjust the stroke of the ejector pin 74. The too-long ejector pin 74 can be ground and polished so that the ejector pin 74 can adapt to the needs of the mold, avoiding excessive or insufficient glue at the ejector pin mark position of the product and enhancing the sealing performance of the product; and the material of the ejector stopper 75 can be medium carbon steel material S50C or plastic mold steel material P20. When the top plate assembly 71 returns to its original position, the ejector stopper 75 contacts the inner wall of the through cavity 31, changing the contact between the top plate assembly 71 and the inner wall of the through cavity 31 from surface contact to multiple point contacts, reducing the contact area, and can reduce the noise generated by the impact between the top plate assembly 71 and the rear mold plate 30.

[0042] In this embodiment, the ejection mechanism 70 further includes a plurality of first fasteners 76. The ejector stopper 75 is provided with a counterbore 751, and the top plate assembly 71 is provided with a plurality of first threaded holes 711. The first fasteners 76 pass through the counterbore 751 and are threadedly connected to the first threaded holes 711, so as to facilitate the installation of the ejector stopper 75 at the corresponding position of the top plate assembly 71. When the top plate assembly 71 is deformed, the thickness of the ejector stopper 75 can be adjusted at the corresponding position. The ejector stopper 75 is a standard part, and a mold matching allowance of more than 0.5 mm - 1 mm is reserved for the thickness. The first fastener 76 is a screw.

[0043] The ejection mechanism 70 further includes at least one limit post 77 for limiting the stroke of the top plate assembly 71. The limit post 77 is located in the through cavity 31, and the limit post 77 is detachably installed on the side of the top plate assembly 71 facing the rear mold core 40 to prevent the bent top plate assembly 71 from affecting the stroke of the ejector pin 74.

[0044] Please further refer to Figures 2 to 6 、 Figures 9 to 10 and Figures 13 to 14, in this embodiment, the inclined ejection module 13 includes a first ejector base 131 and a second ejector base 132. Both the first ejector base 131 and the second ejector base 132 are fixed on the front mold plate 11. The slider module 50 includes a first slider seat 51 and a second slider seat 52. Both the first slider seat 51 and the second slider seat 52 are horizontally slidably mounted on the rear mold plate 30. The first slider seat 51 is provided with a first sliding hole 511, and the second slider seat 52 is provided with a second sliding hole 521. The rear mold plate 30 is provided with a first avoidance groove 32 and a second avoidance groove 33. When the mold is closed, the first ejector base 131 drives the first slider seat 51 to slide through the first sliding hole 511, and the second ejector base 132 drives the second slider seat 52 to slide through the second sliding hole 521. The first ejector base 131 passes through the first sliding hole 511 and is inserted into the first avoidance groove 32, and the second ejector base 132 passes through the second sliding hole 521 and is inserted into the second avoidance groove 33. The front mold core 12, the first slider seat 51, and a part of the rear mold core 40 enclose to form the first product cavity 80, and the front mold core 12, the lifter module 60, the second slider seat 52, and another part of the rear mold core 40 enclose to form the second product cavity 90.

[0045] In some embodiments, the cross-sections of both the second ejector base 132 and the second sliding hole 521 are "T"-shaped structures. The inner diameter of the first sliding hole 511 is larger than the outer diameter of the first ejector base 131, and the inner diameter of the second sliding hole 521 is larger than the outer diameter of the second ejector base 132. The overall volume of the first ejector base 131 is smaller than the overall volume of the second ejector base 132. The second ejector base 132 contacts the slider module 50 first. The outer side wall of the first ejector base 131 is provided with a first inclined surface 1311, and the inner wall of the first sliding hole 511 is provided with a second inclined surface 5111 that cooperates with the first inclined surface 1311, so that when the first ejector base 131 is inserted into the first sliding hole 511, it can drive the first slider seat 51 to slide. The outer side wall of the second ejector base 132 is provided with a third inclined surface 1321, and the inner wall of the second sliding hole 521 is provided with a fourth inclined surface 5211 that cooperates with the third inclined surface 1321, so that when the second ejector base 132 is inserted into the second sliding hole 521, it can drive the second slider seat 52 to slide.

[0046] The first row position seat 51 includes a first sliding seat 512, at least one second elastic member 513, and a first positioning block 514 for defining the stroke of the first sliding seat 512. The first sliding seat 512 is slidably mounted on the rear mold plate 30. A first sliding hole 511 is provided on the first sliding seat 512. One end of the second elastic member 513 is connected to the first sliding seat 512, and the other end is connected to the rear mold core 40. The first positioning block 514 is fixed on the rear mold plate 30. When the mold is closed, the front mold core 12, the first sliding seat 512, and a part of the rear mold core 40 enclose to form the first product cavity 80. At this time, the second elastic member 513 is in a compressed state. When the mold is opened, the first lifter base 131 drives the first sliding seat 512 to move 6 mm away from the rear mold core 40. At the same time, the second elastic member 513 elastically acts on the first sliding seat 512 to make the first sliding seat 512 press against the first positioning block 514, avoiding the phenomenon of the first sliding seat 512 returning during product taking. The second elastic member 513 is a spring.

[0047] In some embodiments, the first sliding seat 512 is convexly provided with a protruding portion 5121, and the protruding portion 5121 abuts against the rear mold core 40, so as to form a socket 110 on the first molded part 100 when the first row position seat 51 is demolded.

[0048] In some embodiments, the number of the second elastic members 513 is two. The first sliding seat 512 is further provided with two embedding grooves 5122. One end of the second elastic member 513 is installed in the embedding groove 5122, and the other end abuts against the rear mold core 40, so as to facilitate the quick return of the first sliding seat 512 after the mold is opened.

[0049] The second row bit seat 52 includes a second sliding seat 522, an insert 523, a second positioning block 524, a bracket 525, a second fastener 526, and a third elastic member 527. The second sliding seat 522 is slidably mounted on the rear mold plate 30. The second sliding seat 522 has a second threaded hole 5221, the second sliding hole 521, and an inclined chute 5222. The second positioning block 524 is mounted on the rear mold core 40 and encloses with the rear mold core 40 to form an inclined third sliding hole 528. The distance from the bottom wall of the chute 5222 to the top plate assembly 71 gradually increases from the end close to the rear mold core 40 to the end far from the rear mold core 40. The distance from the bottom wall of the third sliding hole 528 to the top plate assembly 71 gradually decreases from the end close to the rear mold core 40 to the end far from the rear mold core 40. One end of the insert 523 is slidably connected to the chute 5222, and the other end is slidably mounted on the third sliding hole 528. The bracket 525 is fixed to the rear mold plate 30. The bracket 525 is provided with a first through hole 5251. The third elastic member 527 is annular. The second fastener 526 sequentially passes through the third elastic member 527 and the first through hole 5251 and is threadedly connected to the second threaded hole 5221. When the mold is closed, the rear mold 20 moves towards the front mold 10. In the second row bit seat 52, the second sliding seat 522 drives the insert 523 to tilt upward. The second fastener 526 moves together with the second sliding seat 522. The third elastic member 527 is in a compressed state. The front mold core 12, the inclined ejector module 60, the insert 523, and another part of the rear mold core 40 enclose to form the second product cavity 90. When the mold is opened, the front mold 10 is separated from the rear mold 20. The second lifter base 132 drives the second sliding seat 522 to move 20.5 mm towards the side far from the rear mold core 40. At the same time, under the elastic action of the third elastic member 527, the second sliding seat 522 retreats and drives the insert 523 to tilt downward along the length direction of the third sliding hole 528 by 13.48 mm, so that the second molded part 200 in the second product cavity 90 can form an undercut 210 after demolding to meet the structural requirements of the product and complete the mold opening action. The second fastener 526 is a bolt with threads only at the head end. The third elastic member 527 is a spring.

[0050] In this embodiment, the rear mold plate 30 includes a rear template 34, a bottom plate 35, and two spacer blocks 36. The two ends of the spacer block 36 are respectively connected to the rear template 34 and the bottom plate 35. The rear template 34, the bottom plate 35, and the two spacer blocks 36 enclose to form the through cavity 31. The rear mold core 40 and the row bit module 50 are both mounted on the side of the rear template 34 away from the bottom plate 35. The row bit module 50 can slide relative to the rear template 34. One ends of the inclined ejector module 60 and the ejector pin 74 are both mounted on the top plate assembly 71, and the other ends sequentially pass through the rear template 34 and the rear mold core 40 to facilitate ejecting the corresponding product under the drive of the top plate assembly 71. The first avoidance groove 32 and the second avoidance groove 33 are both provided on the rear template 34.

[0051] The inclined ejector module 60 includes a first inclined ejector 61 and at least one second inclined ejector 62. The rear template 34 is further provided with a second through hole 341, at least one third through hole 342, and a plurality of fourth through holes 343. The rear mold core 40 is provided with a fifth through hole 41, at least one sixth through hole 42, and a plurality of seventh through holes 43. The number of the second inclined ejectors 62, the third through holes 342, and the sixth through holes 42 is three. One end of the first inclined ejector 61 is rotatably connected to the top plate assembly 71, and the other end sequentially passes through the second through hole 341 and the fifth through hole 41. One end of the second inclined ejector 62 is rotatably connected to the top plate assembly 71, and the other end sequentially passes through the third through hole 342 and the sixth through hole 42. One end of the ejector pin 74 is fixedly connected to the top plate assembly 71, and the other end sequentially passes through the fourth through holes 343 and the seventh through holes 43. The top plate assembly 71 drives the inclined ejector module 60 and the ejector pin 74 to move upward synchronously by 35 mm, so as to eject the first formed part 100 from the first product cavity 80 and eject the second formed part 200 from the second product cavity 90.

[0052] Please refer further to Figures 2 to 4 and Figures 11 to 12 In this embodiment, the rear mold core 40 includes a first module 44, a second module 45, two first forming blocks 46 with different structures, and two second forming blocks 47 with different structures. The first module 44 and the second module 45 are both installed on the rear template 34. The first module 44 is provided with a first clamping hole 441, and the second module 45 is provided with a second clamping hole 451. The two first forming blocks 46 are both fixed in the first clamping hole 441, and the two second forming blocks 47 are both fixed in the second clamping hole 451. The seventh through holes 43 are provided on the first module 44, the second module 45, the first forming blocks 46, and the second forming blocks 47. The fifth through hole 41 and the sixth through hole 42 are both provided on the second module 45. The front mold core 12, the first module 44, the two first forming blocks 46, and a part of the slider module 50 enclose to form the first product cavity 80. The front mold core 12, the inclined ejector module 60, the second module 45, the two second forming blocks 47, and another part of the slider module 50 enclose to form the second product cavity 90. The first forming blocks 46 and the second forming blocks 47 are both used for forming the water outlet 300.

[0053] The front mold plate 11 includes a panel 111 and a front template 112 connected to the panel 111. The front mold core 12 and the inclined slider module 13 are both fixed on one side of the front template 112 facing the rear template 34.

[0054] The working principle of the mold is as follows:

[0055] When the mold is closed, the rear mold 20 moves towards the front mold 10. The first lifting base 131 in the inclined ejection module 13 is inserted into the first sliding hole 511 of the first slider base 51 in the slider module 50, and the second lifting base 132 is inserted into the second sliding hole 521 of the second slider base 52 in the slider module 50, so as to drive the first slider base 51 and the second slider base 52 to move towards the side close to the rear mold core 40. Among them, the first sliding seat 512 in the first slider base 51 compresses the second elastic member 513, the second sliding seat 522 in the second slider base 52 drives the insert 523 to tilt upward, and the third elastic member 527 is in a compressed state. The front mold core 12, a part of the rear mold core 40, and the first slider base 51 enclose to form the first product cavity 80. The front mold core 12, the lifter module 60, another part of the rear mold core 40, and the second slider base 52 enclose to form the second product cavity 90. Two products with different structures are formed in the first product cavity 80 and the second product cavity 90.

[0056] When the mold is opened, the front mold 10 is separated from the rear mold 20. The first lifting base 131 and the second lifting base 132 in the inclined ejection module 13 respectively drive the first slider base 51 and the second slider base 52 to move towards the side away from the rear mold core 40. And in the first slider base 51, under the elastic action of the second elastic member 513, the first sliding seat 512 retreats and abuts against the first positioning block 514 to achieve positioning. In the second slider base 52, under the elastic action of the third elastic member 527, the second sliding seat 522 retreats and drives the insert 523 to tilt downward, so as to form an undercut 210 in the product formed in the second product cavity 90. Then the top plate assembly 71 further pushes the ejector pins 74 and the lifter module 60 to eject the corresponding products in the first product cavity 80 and the second product cavity 90. When the top plate assembly 71 is bent, a plurality of trash pins 75 are installed on the side of the top plate assembly 71 away from the rear mold core 40. The trash pins 75 can adjust the stroke of the ejector pins 74. The too long ejector pins 74 can be ground and polished so that the ejector pins 74 can adapt to the needs of the mold.

[0057] In summary, in the present utility model, a plurality of trash pins 75 are detachably installed on the top plate assembly 71 of the ejection mechanism 70. The trash pins 75 are located on the side of the top plate assembly 71 away from the rear mold core 40. When the top plate assembly 71 is bent, the moving position of the top plate assembly 71 in the through cavity 31 can be changed by adding trash pins 75, thereby adjusting the stroke of the ejector pins 74. The too long ejector pins 74 can be ground so that the ejector pins 74 can adapt to the needs of the mold, avoiding too much or too little glue at the ejector pin mark position of the product and enhancing the sealing performance of the product. And the contact between the top plate assembly 71 and the inner wall of the through cavity 31 is changed from surface contact to multiple point contacts, and the contact area is reduced, which can reduce the noise generated by the impact between the top plate assembly 71 and the rear mold plate 30, thereby improving the working environment of workers.

[0058] The above embodiments are only the preferred embodiments of the present utility model, and the scope of protection of the present utility model cannot be limited thereby. Any non-substantial changes and substitutions made by those skilled in the art based on the present utility model fall within the scope of protection required by the present utility model.

Claims

1. A mold, characterized in that, Comprising: The front mold, including a front mold plate, a front mold core, and an inclined ejector module. The front mold core and the inclined ejector module are both installed on one side of the front mold plate. The rear mold, including a rear mold plate, a rear mold core, a slider module, an inclined lifter module, and an ejection mechanism. The rear mold core and the slider module are both installed on one side of the rear mold plate. The rear mold plate is provided with a through cavity. The ejection mechanism includes a plurality of guide rods, a plurality of first elastic members, a top plate assembly for connecting with a top bar in an injection molding machine, a plurality of ejector pins that can all be ground, and a plurality of trash pins for adjusting the stroke of the ejector pins. Two ends of the guide rods are respectively connected to two inner walls of two sides of the through cavity. The top plate assembly is slidably installed on the guide rods. One end of the first elastic member is connected to a side of the top plate assembly close to the rear mold core, and the other end is connected to the inner side wall of the through cavity. One end of the inclined lifter module and the ejector pins are both connected to the top plate assembly, and the other ends both sequentially pass through the rear mold plate and the rear mold core. The plurality of trash pins are detachably installed on a side of the top plate assembly away from the rear mold core. When the mold is closed, the inclined ejector module is connected to the slider module and drives the slider module to move towards the side close to the rear mold core. The front mold core, a part of the rear mold core, and a part of the slider module enclose to form a first product cavity. The front mold core, the inclined lifter module, another part of the rear mold core, and another part of the slider module enclose to form a second product cavity. When the mold is opened, the front mold plate is separated from the rear mold plate. The inclined ejector module drives the slider module to move towards the side away from the rear mold core. The top plate assembly can push the ejector pins and the inclined lifter module to eject corresponding products in the first product cavity and the second product cavity.

2. The mold according to claim 1, wherein, The ejection mechanism further includes a plurality of first fasteners. The trash pins are provided with counterbores, and the top plate assembly is provided with a plurality of first threaded holes. The first fasteners pass through the counterbores and are threadedly connected to the first threaded holes.

3. The mold according to claim 1, characterized in that, The ejection mechanism further includes at least one limit post for limiting the stroke of the top plate assembly. The limit post is located in the through cavity and is detachably installed on a side of the top plate assembly facing the rear mold core.

4. The mold according to claim 1, wherein, The inclined ejector module includes a first lifter base and a second lifter base. The first lifter base and the second lifter base are both fixed on the front mold plate. The slider module includes a first slider seat and a second slider seat. The first slider seat and the second slider seat are both slidably installed on the rear mold plate. The first slider seat is provided with a first sliding hole, and the second slider seat is provided with a second sliding hole. When the mold is closed, the first lifter base is inserted into the first sliding hole, and the second lifter base is inserted into the second sliding hole. The front mold core, the first slider seat, and a part of the rear mold core enclose to form the first product cavity. The front mold core, the inclined lifter module, the second slider seat, and another part of the rear mold core enclose to form the second product cavity.

5. The mold according to claim 4, characterized in that, The first row position base includes a first sliding seat, at least one second elastic member, and a first positioning block for defining the stroke of the first sliding seat. The first sliding seat is slidably mounted on the rear mold plate. The first sliding hole is provided on the first sliding seat. One end of the second elastic member is connected to the first sliding seat, and the other end is connected to the rear mold core. The first positioning block is fixed on the rear mold plate. When the mold is closed, the front mold core, the first sliding seat, and a part of the rear mold core enclose to form the first product cavity, and the second elastic member is in a compressed state. When the mold is opened, the first lifter base drives the first sliding seat to move away from the rear mold core, and the second elastic member elastically acts on the first sliding seat to make the first sliding seat press against the first positioning block.

6. The mold according to claim 4, characterized in that, The second row position base includes a second sliding seat, an insert, a second positioning block, a bracket, a second fastener, and a third elastic member. The second sliding seat is slidably mounted on the rear mold plate. The second sliding seat has a second threaded hole, the second sliding hole, and an inclined chute. The second positioning block is mounted on the rear mold core and encloses with the rear mold core to form an inclined third sliding hole. The distance from the bottom wall of the chute to the top plate assembly gradually increases from the end close to the rear mold core to the end away from the rear mold core. The distance from the bottom wall of the third sliding hole to the top plate assembly gradually decreases from the end close to the rear mold core to the end away from the rear mold core. One end of the insert is slidably connected to the chute, and the other end is slidably mounted on the third sliding hole. The bracket is fixed on the rear mold plate, and the bracket is provided with a first through hole. The third elastic member is annular. The second fastener sequentially passes through the third elastic member and the first through hole and then is threadedly connected to the second threaded hole. When the mold is closed, the front mold core, the lifter module, the insert, and another part of the rear mold core enclose to form the second product cavity, and the third elastic member is in a compressed state. When the mold is opened, the second lifter base drives the second sliding seat to move away from the rear mold core, and the second sliding seat drives the insert to tilt downward so that the product in the second product cavity can form an undercut after demolding.

7. The mold according to claim 1, characterized in that, The rear mold plate includes a rear template, a bottom plate, and two spacer blocks. The two ends of the spacer blocks are respectively connected to the rear template and the bottom plate. The rear template, the bottom plate, and the two spacer blocks enclose to form the through cavity. The rear mold core and the row position module are both mounted on the rear template. One ends of the lifter module and the ejector pin are both mounted on the top plate assembly, and the other ends sequentially pass through the rear template and the rear mold core.

8. The mold according to claim 7, characterized in that The inclined ejector module includes a first inclined ejector and at least one second inclined ejector. The rear template is provided with a second through hole, at least one third through hole, and a plurality of fourth through holes. The rear mold core is provided with a fifth through hole, at least one sixth through hole, and a plurality of seventh through holes. One end of the first inclined ejector is rotatably connected to the top plate assembly, and the other end sequentially passes through the second through hole and the fifth through hole. One end of the second inclined ejector is rotatably connected to the top plate assembly, and the other end sequentially passes through the third through hole and the sixth through hole. One end of the ejector pin is fixedly connected to the top plate assembly, and the other end sequentially passes through the fourth through hole and the seventh through hole.

9. The mold according to claim 8, wherein The rear mold core includes a first module, a second module, two first forming blocks, and two second forming blocks. The first module and the second module are both installed on the rear template. The first module is provided with a first clamping hole, and the second module is provided with a second clamping hole. The two first forming blocks are both fixed in the first clamping hole, and the two second forming blocks are both fixed in the second clamping hole. The seventh through holes are provided on the first module, the second module, the first forming blocks, and the second forming blocks. The fifth through hole and the sixth through hole are both provided on the second module. The front mold core, the first module, the two first forming blocks, and a part of the slider module enclose to form the first product cavity. The front mold core, the inclined ejector module, the second module, the two second forming blocks, and another part of the slider module enclose to form the second product cavity.

10. The mold according to claim 1, characterized in that, The front mold plate includes a panel and a front template connected to the panel. The front mold core and the inclined slide module are both fixed on the front template.

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