Mold

Abstract

An embodiment of the present invention discloses a mold, which relates to the field of injection molding technology. The mold includes a first mold body and a second mold body that enclose to form an injection space. Among them, the first mold body includes a main body and a slider mechanism. The slider mechanism includes a first slider, a spring block, a first driving block and a first elastic member. So that when the mold is closed, the second mold body can press the spring block against the first slider to compress the first elastic member and drive the first driving block to slide to a first position; when the mold is opened, when the first driving block slides from the first position to a second position, it can drive the spring block that has not slid to the ejection position to slide to the ejection position. In this way, through the setting of the first driving block, the first elastic member can be assisted to drive the spring block, thereby avoiding the spring block being locked on the first slider only under the drive of the first elastic member and unable to slide to the ejection position, resulting in damage to the injection molded part during demolding.

Description

Technical Field

[0001] The present invention relates to the technical field of injection molding, and particularly to a mold. Background Art

[0002] Injection molded parts often have structures such as undercuts, snap fits, holes, cavities or bosses. When opening the mold, side core pulling by movable sliders is generally used for demolding. The slider needs to be withdrawn from the injection molded part before the injection molded part is ejected. In existing molds, elastic members are often used to drive the slider to facilitate separation from structures such as undercuts, snap fits, holes, cavities or bosses. However, in the process of use, the method of driving by elastic members often fails due to the locking of the slider, resulting in the inability of the slider to be withdrawn from the injection molded part and damaging the injection molded part. Summary of the Invention

[0003] Based on this, it is necessary to provide a mold, aiming to solve the technical problem that the slider driven by an elastic member in the existing mold is prone to locking.

[0004] To solve the above technical problem, the technical solution adopted by the present invention is as follows:

[0005] A mold includes a first mold body and a second mold body. The first mold body and the second mold body enclose an injection molding space. The first mold body and the second mold body can move relative to each other to realize mold opening and closing. The first mold body includes a main body and a slider mechanism. The slider mechanism is received in the injection molding space. The slider mechanism includes a first slider, a spring block, a first driving block and a first elastic member. The first slider can slide relative to the main body.

[0006] When closing the mold, the second mold body can press the spring block against the first slider to compress the first elastic member and can drive the first driving block to slide along the first slider to a first position.

[0007] When opening the mold, the second mold body can separate from the spring block and can drive the first driving block to slide along the first slider to a second position. The first elastic member can drive the spring block to slide along the first slider from the compressed position to the ejected position. When the first driving block slides from the first position to the second position, it can drive the spring block that has not slid to the ejected position to slide towards the ejected position.

[0008] In some embodiments of the mold, a first insertion portion is provided on the spring block, and a second insertion portion is provided on the first driving block. The first insertion portion and the second insertion portion can be inserted into each other, and the second insertion portion can move relative to the first insertion portion to drive the spring block that has not slid to the ejected position to slide towards the ejected position.

[0009] In some embodiments of the mold, a first abutting surface is provided on the first plugging portion, a second abutting surface capable of fitting with the first abutting surface is provided on the second plugging portion, and the second abutting surface is inclined with respect to the sliding direction of the first driving block.

[0010] In some embodiments of the mold, the first elastic member is located between the elastic block and the first slider. The slider mechanism further includes a first plugging member. The first plugging member penetrates the elastic block along the sliding direction of the elastic block and is provided on the first slider. The elastic block is slidably connected to the first plugging member, and the first elastic member is sleeved around the first plugging member.

[0011] In some embodiments of the mold, a sunk groove is provided on one side of the elastic block away from the first elastic member. A stop protrusion is provided on the first plugging member. The stop protrusion is received in the sunk groove and can abut against the bottom of the sunk groove when the elastic block is in the ejected position.

[0012] In some embodiments of the mold, the mold further includes a slider assembly. The slider assembly includes a second slider, a third slider, and a second driving block. The second slider can slide relative to the body. The second driving block is provided on the second mold body. A first positioning portion is provided on the second slider, and a second positioning portion is provided on the second driving block. The first positioning portion and the second positioning portion can be slidably positioned during mold opening and closing. A first driving portion is provided on the third slider, and a second driving portion is provided on the second driving block. The first driving portion and the second driving portion can slide relative to each other during mold opening and closing to drive the third slider to slide relative to the second slider.

[0013] In some embodiments of the mold, a first sliding portion is provided on the second slider, and a second sliding portion is provided on the third slider. The third slider is slidably matched with the first sliding portion through the second sliding portion to slide relative to the second slider.

[0014] In some embodiments of the mold, a notch is provided on the first sliding portion. During mold closing, the second driving portion can be inserted into the notch.

[0015] In some embodiments of the mold, the slider assembly further includes a second elastic member. During mold closing, the third slider can compress the second elastic member. During mold opening, the second elastic member can provide a driving force for the third slider to slide relative to the second slider.

[0016] In some embodiments of the mold, the second elastic member is located between the second slider and the third slider. The slider assembly further includes a second insertion member disposed on the second slider. The second insertion member is partially inserted into the third slider along the sliding direction of the third slider. A stop portion is provided on the third slider. The second elastic member is in contact with the stop portion and surrounds the second insertion member.

[0017] Implementing the embodiments of the present invention will have the following beneficial effects:

[0018] In addition to excellent injection molding performance, the mold of the above solution can also avoid the locking of the slider driven by the elastic member. Specifically, the mold includes a first mold body and a second mold body that enclose an injection space. Among them, the first mold body includes a main body and a slider mechanism. The slider mechanism includes a first slider, a spring block, a first driving block, and a first elastic member. When the mold is closed, the second mold body can press the spring block against the first slider to compress the first elastic member and drive the first driving block to slide to the first position; when the mold is opened, when the first driving block slides from the first position to the second position, it can drive the spring block that has not slid to the ejection position to slide to the ejection position. In this way, through the setting of the first driving block, the first elastic member can be assisted to drive the spring block, thereby avoiding the spring block being locked on the first slider and unable to slide to the ejection position only under the drive of the first elastic member, resulting in damage to the injection molded part during demolding. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0020] Among them:

[0021] Figure 1 It is a schematic diagram of the position of the mold body and the injection molded part in an embodiment;

[0022] Figure 2 is Figure 1 a schematic diagram of the shown mold;

[0023] Figure 3 is Figure 2 a cross-sectional view taken along the A-A direction in;

[0024] Figure 4 is Figure 3 an enlarged schematic diagram of the structure at part B in;

[0025] Figure 5 is Figure 1Schematic diagram of the positions of the ejector block and the first driving block in the shown mold;

[0026] Figure 6 is Figure 1 Top view of the shown mold;

[0027] Figure 7 is Figure 6 Cross-sectional view taken along the C-C direction in

[0028] Figure 8 is Figure 6 Cross-sectional view taken along the D-D direction in

[0029] Figure 9 is Figure 8 Schematic diagram of the enlarged structure of part E in

[0030] Figure 10 is Figure 1 Schematic diagram of the positions of the third slider and the second driving block in the shown mold;

[0031] Figure 11 is Figure 1 Schematic diagram of the positions of the second driving part and the first sliding part in the shown mold. Detailed implementation manners

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0033] The mold provided by the embodiment of the present invention is used for injection molding of injection molded parts, especially for injection molding of injection molded parts having structures such as undercuts, snap fits, holes, cavities or bosses; of course, in other embodiments of the present invention, the mold can also be used for injection molding of other injection molded parts, or applied to other processing procedures of other injection molded parts, which is not limited uniquely here.

[0034] Please also combine with Figure 1 、 Figure 2 and Figure 6, the mold provided by the embodiments of the present invention will be described now. The mold includes a first mold body (not shown) and a second mold body (not shown). The first mold body and the second mold body enclose an injection molding space. The first mold body and the second mold body can move relative to each other to realize mold opening and closing. That is, the first mold body and the second mold body approach each other to realize mold closing. The first mold body and the second mold body move away from each other to realize mold opening. Further, the first mold body includes a main body (not shown) and a slider mechanism. The slider mechanism is received in the injection molding space. The slider mechanism includes a first slider 11, a spring block 12, a first driving block 13, and a first elastic member 14. The first slider 11 can slide relative to the main body. During mold closing, the second mold body can press the spring block 12 against the first slider 11 to compress the first elastic member 14 and can drive the first driving block 13 to slide along the first slider 11 to a first position. During mold opening, the second mold body can separate from the spring block 12 and can drive the first driving block 13 to slide along the first slider 11 to a second position. The first elastic member 14 can drive the spring block 12 to slide from the compressed position to the ejected position along the first slider 11. When the first driving block 13 slides from the first position to the second position, it can drive the spring block 12 that has not slid to the ejected position to slide to the ejected position.

[0035] In summary, implementing the embodiments of the present invention will have the following beneficial effects: In addition to having excellent injection molding efficiency, the mold of the above solution can also avoid the slider locked by the elastic member. Specifically, the mold includes a first mold body and a second mold body that enclose an injection molding space. Among them, the first mold body includes a main body and a slider mechanism. The slider mechanism includes a first slider 11, a spring block 12, a first driving block 13, and a first elastic member 14. So that during mold closing, the second mold body can press the spring block 12 against the first slider 11 to compress the first elastic member 14 and drive the first driving block 13 to slide to the first position; during mold opening, when the first driving block 13 slides from the first position to the second position, it can drive the spring block 12 that has not slid to the ejected position to slide to the ejected position. In this way, through the setting of the first driving block 13, it can assist the first elastic member 14 to drive the spring block 12, thereby avoiding the spring block 12 being locked on the first slider 11 and unable to slide to the ejected position only under the drive of the first elastic member 14, resulting in damage to the injection molded part 1 during demolding.

[0036] In one embodiment, as Figure 5As shown, a first insertion portion 121 is provided on the elastic block 12. A second insertion portion 131 is provided on the first driving block 13. The first insertion portion 121 and the second insertion portion 131 can be inserted into each other. In this way, the overall volume of the slider mechanism can be reduced by the insertion method, thereby reducing the volume of the mold and making the structures on the mold more compact. Further, the second insertion portion 131 can move relative to the first insertion portion 121 to drive the elastic block 12 that has not slid to the ejection position to slide toward the ejection position. Specifically, during mold closing, the second mold body can press the elastic block 12 onto the first slider 11, and at the same time, drive the first driving block 13 to slide to the first position so that the first insertion portion 121 and the second insertion portion 131 can be inserted and matched. During mold opening, the second mold body can be separated from the elastic block 12 and drive the first driving block 13 to slide to the second position. Normally, when the second mold body is separated from the elastic block 12, the first elastic member 14 can drive the elastic block 12 to continue to fit with the second mold body. As the mold opening progresses, that is, as the first mold body and the second mold body move relatively away from each other, the elastic block 12 will fit with the second mold body to reach the ejection position. When the elastic block 12 is locked on the first slider 11 during the above process, that is, when the driving force of the first elastic member 14 cannot drive the elastic block 12 to slide to the ejection position, the second insertion portion 131 slides relative to the first insertion portion 121 to provide a force for the elastic block 12 to slide toward the ejection position to prevent the elastic block 12 from being locked on the first slider 11.

[0037] In one embodiment, please continue to refer to Figure 5 , a first abutting surface is provided on the first insertion portion 121. A second abutting surface 1311 that can fit with the first abutting surface is provided on the second insertion portion 131. In this way, through the relative sliding between the first abutting surface and the second abutting surface 1311, the driving of the elastic block 12 by the first driving block 13 is realized. Further, the sliding direction of the second abutting surface 1311 relative to the first driving block 13 is inclined. In this way, the first driving block 13 can closely slide on the first slider 11 to drive the elastic block 12 to slide toward the ejection position, reducing the avoidance space opened for avoiding the sliding of the first driving block 13. Specifically, in this embodiment, the first insertion portion 121 has a groove structure, and the second insertion portion 131 has a convex structure. One side of the first insertion portion 121 away from the first abutting surface is open to avoid the second insertion portion 131 during ejection. It can be understood that in other embodiments, the first insertion portion 121 is a convex structure, and the second insertion portion 131 is a groove structure.

[0038] In one embodiment, as Figure 7As shown, a through groove is provided on the first slider 11. The through groove penetrates the first slider 11 and one end thereof communicates with the injection molding space. The elastic block 12 can slide relative to the through groove. In this embodiment, the elastic block 12 can also seal the through groove to prevent the injection molding material from flowing into the through groove during the injection molding process. Further, in the compressed position, the elastic block 12 can be pressed against the groove wall of the through groove and partially extend into the injection molding space to form a cavity on the injection molded part 1. In the ejected position, the elastic block 12 can be removed from the injection molding space, that is, withdrawn from the injection molded part 1, so as to avoid hindering the demolding of the injection molded part 1.

[0039] In one embodiment, as Figures 1 to 5 shown, a first guiding portion 111 is provided on the first slider 11. The first guiding portion 111 is exposed on the groove wall of the through groove. A second guiding portion 122 that slidably cooperates with the first guiding portion 111 is provided on the elastic block 12. Thus, the cooperation between the first guiding portion 111 and the second guiding portion 122 can ensure the stability of the sliding of the elastic block 12 relative to the first slider 11.

[0040] In one embodiment, as Figure 4 and Figure 5 shown, a first stop portion 112 is provided on the first slider 11. The first stop portion 112 is exposed on the groove wall of the through groove. A second stop portion 123 is provided on the elastic block 12. The first stop portion 112 and the second stop portion 123 can prevent the elastic block 12 from sliding out of the ejected position when sliding from the compressed position to the ejected position. Thus, the elastic block 12 is restricted to be in the ejected position by the first stop portion 112 and the second stop portion 123, which is convenient for the next mold closing. In this embodiment, the first guiding portion 111 has a convex structure and is detachably connected to the first slider 11 to facilitate the assembly of the elastic block 12. The first stop portion 112 is located on the first guiding portion 111. A missing portion is provided on the elastic block 12 to form the second guiding portion 122 and the second stop portion 123 facing the first stop portion 112.

[0041] In one embodiment, please continue to refer to Figure 4 and Figure 5, the first elastic member 14 is located between the elastic block 12 and the first slider 11. The slider mechanism further includes a first plug-in member 15. The first plug-in member 15 penetrates through the elastic block 12 along the sliding direction of the elastic block 12 and is provided on the first slider 11, and the elastic block 12 is slidably connected to the first plug-in member 15. In this way, through the guiding action of the first plug-in member 15 and the combined action of the first guiding portion 111 and the second guiding portion 122, the stability of the relative movement of the elastic block 12 with respect to the first slider 11 is further ensured. In this embodiment, the number of the first guiding portions 111 is two, the number of the second guiding portions 122 is the same as that of the first guiding portions 111 and they are in one-to-one sliding fit, the number of the first plug-in members 15 is two, and the two second guiding portions 122 and the two first plug-in members 15 are distributed in a quadrilateral shape, further improving the stability of the relative sliding of the elastic block 12 with respect to the first slider 11. Further, the first elastic member 14 is disposed around the first plug-in member 15. In this way, the accuracy of the elastic force direction generated by the first elastic member 14 to drive the elastic block 12 can be improved, and the locking of the elastic block 12 can be avoided. In this embodiment, the first elastic member 14 is a spring. It can be understood that in other embodiments, the first elastic member 14 can also be an elastic structure such as elastic rubber or elastic sheet.

[0042] In one embodiment, please continue to refer to Figure 4 and Figure 5 , a sinking groove 124 is provided on the side of the elastic block 12 away from the first elastic member 14. A stop protrusion 151 is provided on the first plug-in member 15. The stop protrusion 151 is received in the sinking groove 124 and can abut against the bottom of the sinking groove 124 when the elastic block 12 is in the ejected position, further improving the accuracy of the elastic block 12 in the ejected position. In addition, the setting of the sinking groove 124 can ensure that the first plug-in member 15 does not protrude out of the sinking groove 124 during the sliding process of the elastic block 12 relative to the first slider 11, so as to avoid interference with the mold opening and closing.

[0043] In one embodiment, as Figure 1 and Figure 5 shown, a third guiding portion 132 is provided on the first driving block 13. A fourth guiding portion that is slidably matched with the third guiding portion 132 is provided on the second mold body. The relative sliding of the third guiding portion 132 and the fourth guiding portion can drive the first driving block 13 to slide between a first position and a second position. In this embodiment, the third guiding portion 132 is a guiding hole, and the fourth guiding portion is a guiding post. The sliding fit between the guiding hole and the guiding post realizes the sliding of the first driving block 13 between the first position and the second position. It can be understood that in other embodiments, the third guiding portion 132 is a guiding post and the fourth guiding portion is a guiding hole.

[0044] In one embodiment, as Figure 1 and Figure 5As shown, the slider mechanism further includes a first stopper 16 and a first pressing block 17. The first stopper 16 is provided on the first slider 11 and can prevent the first driving block 13 from sliding out of the second position when sliding from the first position to the second position, so as to improve the matching accuracy between the third guiding portion 132 and the fourth guiding portion. Further, the first pressing block 17 can press the first driving block 13 against the first slider 11 to improve the stability of the movement of the first driving block 13 relative to the first slider 11, and further ensure the accuracy of the first driving block 13 driving the elastic block 12.

[0045] In one embodiment, please also refer to Figure 1 , Figure 2 and Figure 6 . The slider mechanism further includes a first driving unit 18 for driving the first slider 11 to slide relative to the body. In this embodiment, the first driving unit 18 is an oil cylinder. Through the first driving unit 18, the second die body and the first driving block 13, the first slider 11, the first driving block 13 and the elastic block 12 can move in different directions, so that the mold is more compact and occupies less space.

[0046] In one embodiment, please continue to refer to Figure 1 , Figure 2 and Figure 6 . The slider mechanism further includes a second stopper 191 and a second pressing block 192. The second stopper 191 is provided on the body and can limit the distance that the first slider 11 moves away from the injection space. Under the condition of ensuring that the injection molded part 1 can be demolded, the distance that the first driving unit 18 drives the first slider 11 to move is reduced, so as to reduce energy consumption. Further, the second pressing block 192 can press the first slider 11 against the body to improve the sliding accuracy of the first slider 11 relative to the body.

[0047] In one embodiment, as Figure 1 , Figure 6 , Figure 8 , Figure 10 and Figure 11, the mold further includes a slider assembly. The slider assembly includes a second slider 21, a third slider 22, and a second driving block 23. The second slider 21 is capable of sliding relative to the body. The second driving block 23 is provided on the second mold body. A first positioning portion 211 is provided on the second slider 21. A second positioning portion 231 is provided on the second driving block 23. The first positioning portion 211 and the second positioning portion 231 can be slidably positioned during mold opening and closing. A first driving portion 221 is provided on the third slider 22. A second driving portion 232 is provided on the second driving block 23. The first driving portion 221 and the second driving portion 232 can slide relative to each other during mold opening and closing to drive the third slider 22 to slide relative to the second slider 21. Thus, through the positioning effect of the first positioning portion 211 and the second positioning portion 231, the matching accuracy between the second driving block 23 and the second slider 21 is ensured, and further the matching accuracy between the first driving portion 221 and the second driving portion 232 is ensured, so as to avoid the low accuracy from affecting the driving of the third slider 22 by the second driving block 23. In this embodiment, the first positioning portion 211 is a hole structure, and the second positioning portion 231 is a shaft-like structure.

[0048] In one embodiment, as Figures 9 to 11 shown, a first sliding portion 212 is provided on the second slider 21. A second sliding portion 222 is provided on the third slider 22. The third slider 22 is slidably engaged with the first sliding portion 212 through the second sliding portion 222 to slide relative to the second slider 21. Thus, through the cooperation of the first sliding portion 212 and the second sliding portion 222, the sliding accuracy of the third slider 22 relative to the second slider 21 is improved.

[0049] In one embodiment, as Figure 11 shown, a notch 2121 is provided on the first sliding portion 212. During mold closing, the second driving portion 232 can be inserted into the notch 2121. Thus, the matching accuracy between the second driving block 23 and the second slider 21 can be further improved during mold closing.

[0050] Specifically, as Figures 9 to 11 shown, a first T-shaped groove is provided on the third slider 22 to form the first driving portion 221, and a first T-shaped block is provided on the second driving block 23 to form the second driving portion 232. Thus, through the cooperation of the T-shaped structure, the stability of the cooperation between the third slider 22 and the second driving block 23 is further improved. Further, a second T-shaped groove is provided on the second slider 21 to form the first sliding portion 212, and a second T-shaped groove is provided on the third slider 22 to form the second sliding portion 222. Similarly, the cooperation of the above T-shaped structure further improves the stability of the cooperation between the third slider 22 and the second slider 21.

[0051] In one embodiment, as Figures 9 to 11As shown, the slider assembly further includes a second elastic member 24. During mold clamping, the third slider 22 can compress the second elastic member 24. During mold opening, the second elastic member 24 can provide a driving force for the third slider 22 to slide relative to the second slider 21. Thus, through the arrangement of the second elastic member 24, it can assist the second driving block 23 to drive the third slider 22 and prevent the third slider 22 from being locked. In this embodiment, the second elastic member 24 is a spring. It can be understood that in other embodiments, the second elastic member 24 can also be an elastic structure such as elastic rubber or elastic sheet.

[0052] In one embodiment, as Figure 9 shown, the second elastic member 24 is located between the second slider 21 and the third slider 22. The slider assembly further includes a second plug-in member 25. The second plug-in member 25 is provided on the second slider 21. The second plug-in member 25 is partially inserted into the third slider 22 along the sliding direction of the third slider 22. A third stop portion 223 is provided on the third slider 22. The second elastic member 24 is in contact with the third stop portion 223 and is disposed around the second plug-in member 25. Thus, through the restriction of the second plug-in member 25, the accuracy of the elastic force direction for the second elastic member 24 to drive the third slider 22 can be ensured, so as to improve the ability of the second elastic member 24 to assist in driving the third slider 22.

[0053] In one embodiment, as Figure 9 shown, the third slider 22 is provided with a through hole. The through hole penetrates the third slider 22 along the moving direction of the third slider 22. The slider assembly further includes a plug. The plug is received in the through hole. The third stop portion 223 is located on the plug. The second plug-in member 25 is partially received in the through hole to achieve insertion with the third slider 22. The second elastic member 24 is at least partially received in the through hole. Thus, through the restriction of the second plug-in member 25 and the through hole, the accuracy of the elastic force direction for the second elastic member 24 to drive the third slider 22 is further improved.

[0054] In one embodiment, as Figure 9 shown, both the second plug-in member 25 and the second elastic member 24 are at least partially inserted into the second slider 21. Thus, the second elastic member 24 is restricted on one side of the second slider 21 to ensure the accuracy of its elastic force direction.

[0055] In one embodiment, as Figure 9 shown, the sliding directions of the first driving portion 221 and the second driving portion 232 are inclined to the sliding direction of the third slider 22 relative to the second slider 21. Thus, when the second mold body drives the second driving block 23 to move, a lateral component force is generated on the first driving portion 221 by the second driving portion 232, thereby driving the third slider 22 to slide relative to the second slider 21.

[0056] In one embodiment, as Figure 9 and Figure 10As shown, a fifth guiding portion 224 is provided on the third slider 22. The fifth guiding portion 224 is used to guide the second driving portion 232 to the first driving portion 221. In this way, it is convenient for the first driving portion 221 and the second driving portion 232 to cooperate quickly during mold closing. As mentioned above, a first T-shaped groove is formed on the third slider 22 to form the first driving portion 221. In this embodiment, the fifth guiding portion 224 is a guiding surface structure extending into the first T-shaped groove.

[0057] In one embodiment, please also refer to Figure 1 , Figure 2 and Figure 6 . The slider assembly further includes a second driving unit 26. The second driving unit 26 is used to drive the second slider 21 to slide relative to the body. In this embodiment, the second driving unit 26 is an oil cylinder. Through the second driving unit 26 and the second driving block 23, the second slider 21 and the third slider 22 can be moved in different directions, so that the mold is more compact and occupies less space. In this embodiment, the included angle between the sliding directions of the second slider 21 and the third slider 22 is relatively large. The above-mentioned first positioning portion 211 and second positioning portion 231, and the first sliding portion 212 and second driving portion 232 positioned through the notch 2121. It can ensure that when the second driving unit 26 drives the second slider 21 to an improper position with errors, the second slider 21 is positioned at a preset position to ensure the mold closing accuracy and ensure that the first driving portion 221 and the second driving portion 232 can cooperate precisely.

[0058] In one embodiment, please continue to refer to Figure 1 , Figure 2 and Figure 6 . The slider assembly further includes a third stopper 27 and a third pressing block 28. The third stopper 27 is provided on the body and can limit the distance that the second slider 21 moves away from the injection space. Under the condition of ensuring that the injection molded part 1 can be demolded, the distance that the second driving unit 26 drives the second slider 21 to move is reduced to reduce energy consumption. Further, the third pressing block 28 can press the second slider 21 against the body to improve the sliding accuracy of the second slider 21 relative to the body.

[0059] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0060] The above-disclosed are only the preferred embodiments of the present invention. Of course, the scope of the present invention cannot be limited thereby. Therefore, the equivalent changes made according to the claims of the present invention still fall within the scope covered by the present invention.

Claims

1. A mold, characterized in that, It includes a first mold body and a second mold body. The first mold body and the second mold body enclose an injection molding space. The first mold body and the second mold body can move relative to each other to realize mold opening and closing. The first mold body includes a main body and a slider mechanism. The slider mechanism is received in the injection molding space. The slider mechanism includes a first slider, a spring block, a first driving block and a first elastic member. The first slider can slide relative to the main body; The spring block is provided with a first insertion portion, and the first driving block is provided with a second insertion portion. The first insertion portion and the second insertion portion can be inserted into each other. The second insertion portion can move relative to the first insertion portion to drive the spring block that has not slid to the ejection position to slide towards the ejection position; The first insertion portion is provided with a first abutting surface, and the second insertion portion is provided with a second abutting surface that can fit with the first abutting surface. The second abutting surface is inclined with respect to the sliding direction of the first driving block; The first driving block is provided with a third guiding portion, and the second mold body is provided with a fourth guiding portion that slidably cooperates with the third guiding portion. The relative sliding of the third guiding portion and the fourth guiding portion can drive the first driving block to slide between a first position and a second position; During mold closing, the second mold body can press the spring block against the first slider to compress the first elastic member and can drive the first driving block to slide along the first slider to the first position; During mold opening, the second mold body can separate from the spring block and can drive the first driving block to slide along the first slider to the second position. The first elastic member can drive the spring block to slide along the first slider from the compressed position to the ejection position. When the first driving block slides from the first position to the second position, it can drive the spring block that has not slid to the ejection position to slide towards the ejection position.

2. The mold according to claim 1, wherein The first elastic member is located between the spring block and the first slider. The slider mechanism further includes a first insert. The first insert penetrates the spring block along the sliding direction of the spring block and is provided on the first slider. The spring block is slidably connected to the first insert, and the first elastic member is sleeved around the first insert.

3. The mold according to claim 2, characterized in that, A sinking groove is provided on the side of the spring block away from the first elastic member. The first insert is provided with a stop protrusion. The stop protrusion is received in the sinking groove and can abut against the bottom of the sinking groove when the spring block is in the ejection position.

4. The mold according to claim 1, wherein The mold further includes a slider assembly. The slider assembly includes a second slider, a third slider and a second driving block. The second slider can slide relative to the main body. The second driving block is provided on the second mold body. The second slider is provided with a first positioning portion, and the second driving block is provided with a second positioning portion. The first positioning portion and the second positioning portion can be slidably positioned during mold opening and closing. The third slider is provided with a first driving portion, and the second driving block is provided with a second driving portion. The first driving portion and the second driving portion can slide relative to each other during mold opening and closing to drive the third slider to slide relative to the second slider.

5. The mold according to claim 4, characterized in that, The second slider is provided with a first sliding portion, the third slider is provided with a second sliding portion, and the third slider is slidably engaged with the first sliding portion through the second sliding portion to slide relative to the second slider.

6. The mold according to claim 5, characterized in that, The first sliding portion is provided with a notch, and when the mold is closed, the second driving portion can be inserted into the notch.

7. The mold according to claim 6, characterized in that, The slider assembly further includes a second elastic member. When the mold is closed, the third slider can compress the second elastic member. When the mold is opened, the second elastic member can provide a driving force for the third slider to slide relative to the second slider.

8. The mold according to claim 7, characterized in that, The second elastic member is located between the second slider and the third slider. The slider assembly further includes a second plug-in member. The second plug-in member is provided on the second slider. The second plug-in member is partially inserted into the third slider along the sliding direction of the third slider. The third slider is provided with a stop portion. The second elastic member is attached to the stop portion and is disposed around the second plug-in member.

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