Mold and injection molding equipment

Abstract

The mold comprises a first mold core, a second mold core, a first forming part, a driving mechanism and a second forming part, the first mold core and the second mold core jointly form a first cavity and a second cavity, and the second mold core is provided with a guide groove; the first forming part is provided with a first filling part and a first sliding part, the driving mechanism is used for driving the first forming part to move, the second forming part is provided with a guide part, a second filling part and a second sliding part, the guide part is slidably arranged in the guide groove, and the second sliding part is in sliding fit with the first sliding part; when the first forming piece is located at a first preset position, the first filling part and the second filling part are contained in the first cavity and the second cavity correspondingly. And when the first forming part moves to a second preset position, the first filling part is separated from the first cavity, and the second filling part is separated from the second cavity. In this way, one driving mechanism can drive the two forming parts to retreat from the cavity, and the number of parts of the mold can be reduced.

Description

Technical Field

[0001] The embodiments of the present invention relate to the field of mold technology, and in particular to a mold and injection molding equipment. Background Art

[0002] Plastic parts are generally formed by molds. For plastic parts with a cavity structure, a molding piece needs to be set in the mold. The molding piece is used to fill the cavity of the plastic part. After the plastic part is formed in the mold, the molding piece is first pulled out of the cavity of the plastic part, and then the plastic part is taken out of the mold.

[0003] For a plastic part with multiple cavities, multiple molded parts need to be arranged in the mold. When demolding, the multiple molded parts need to be removed from the cavities separately before the plastic part can be taken out. At present, people generally set multiple driving mechanisms in the mold to drive the multiple molded parts to be removed separately, resulting in a large number of parts in the mold and a complex mold structure. Summary of the invention

[0004] The main technical problem solved by the embodiments of the present invention is to provide a mold and an injection molding device, which can reduce the number of driving mechanisms in the mold and help simplify the structure of the mold.

[0005] In order to solve the above technical problems, a technical solution adopted in an embodiment of the present invention is: providing a mold, including a first mold core, a second mold core, a first molding part, a driving mechanism and a second molding part, the first mold core is provided with a first cavity and a second cavity; the second mold core is provided with a third cavity, a fourth cavity and a guide groove, when the first mold core and the second mold core are molded together, the first cavity and the third cavity jointly form a first cavity, the second cavity and the fourth cavity jointly form a second cavity, and the extension direction of the guide groove is the same as the direction of the opening of the second cavity; the first molding part is slidably arranged on the second mold core, and the first molding part is provided with a first filling part and a first sliding part; the driving mechanism is connected to the first molding part, and the first molding part is provided with a first filling part and a first sliding part. The first molding part is driven to move toward or away from the first cavity; the second molding part is provided with a guide part, a second filling part and a second sliding part, the guide part is slidably arranged in the guide groove, and the second sliding part and the first sliding part are slidably matched; when the first molding part is in the first preset position, the first filling part is at least partially accommodated in the first cavity, and the second filling part is at least partially accommodated in the second cavity; when the driving mechanism drives the first molding part to move toward and away from the first cavity to the second preset position, the first filling part is separated from the first cavity, and under the action of the first sliding part and the second sliding part, the second molding part moves along the guide groove to the position where the second filling part is separated from the second cavity.

[0006] Optionally, the first molded part has a first surface, the angle between the straight line along the direction of movement of the first molded part and the first surface is an acute angle, and the first sliding portion is arranged on the first surface; the second molded part has a second surface, the second surface is parallel to the first surface, and the second sliding portion is arranged on the second surface.

[0007] Optionally, the first sliding part is a sliding rail, and the second sliding part is a sliding groove, and the sliding rail and the sliding groove are slidably matched.

[0008] Optionally, the cross-sectional shape of the first sliding portion at right angles to its extension direction is trapezoidal, and the width of the first sliding portion on a side away from the first surface is greater than the width of the first sliding portion on a side close to the first surface; the cross-sectional shape of the second sliding portion at right angles to its extension direction is the same as the cross-sectional shape of the first sliding portion.

[0009] Optionally, the first molded part is provided with a limiting portion, which is located at an end of the first sliding part away from the third cavity, and when the first molded part is in the first preset position, the limiting portion abuts against the guide portion.

[0010] Optionally, the driving mechanism includes a driving rod, one end of which is fixed to the first mold core; the first molding piece is provided with a driving hole, and the driving hole is inclined toward the third cavity from the end of the driving hole away from the first mold core to the end close to the first mold core, and the other end of the driving rod is inserted into the driving hole; when the first mold core moves in the direction away from the second mold core, the driving rod drives the first molding piece to move in the direction away from the third cavity; when the first mold core moves in the direction close to the second mold core, the driving rod drives the first molding piece to move in the direction close to the third cavity.

[0011] Optionally, the second mold core is also provided with a receiving groove, the third cavity, the fourth cavity and the guide groove are all connected to the receiving groove, and the first molded part and the second molded part are partially received in the receiving groove; the mold also includes a first limit strip, the first limit strip is arranged on a side wall of the receiving groove, and a first limit groove is formed between the first limit strip and the bottom of the receiving groove; the first molded part is also provided with a first guide boss, and the first guide boss is slidably fitted with the first limit groove.

[0012] Optionally, the mold also includes a second limit strip, which is arranged on the other side wall of the receiving groove, the second limit strip is opposite to the first limit strip, and a second limit groove is formed between the second limit strip and the bottom of the receiving groove; the first molded part is also provided with a second guide boss, the second guide boss is opposite to the first guide boss, and the second guide boss is slidably fitted with the second limit groove.

[0013] Optionally, the mold further includes an elastic member, the second mold core is further provided with a first accommodating groove, the first molding member is further provided with a second accommodating groove, one end of the elastic member is accommodated in the first accommodating groove, and the other end of the elastic member is accommodated in the second accommodating groove.

[0014] In order to solve the above technical problem, another technical solution adopted by the embodiment of the present invention is: to provide an injection molding device, including the above mold.

[0015] The beneficial effects of the embodiments of the present invention are as follows: different from the prior art, the embodiments of the present invention provide a first cavity and a second cavity in the first mold core, and provide a third cavity, a fourth cavity and a guide groove in the second mold core. When the first mold core and the second mold core are molded together, the first cavity and the third cavity jointly form a first cavity, and the second cavity and the fourth cavity jointly form a second cavity, wherein the extension direction of the guide groove is the same as the direction of the opening of the second cavity; the first molding part is slidably set on the second mold core, and a first filling part and a first sliding part are set on the first molding part; a guiding part, a second filling part and a second sliding part are set on the second molding part, and the guiding part is slidably set in the guide groove so that the second molding part can only slide along the guide groove, and the second sliding part and the first The first molded part is driven by a driving mechanism to move toward or away from the first cavity through a sliding fit between the first and second sliding parts; when the first molded part is in a first preset position, the first filling part is at least partially accommodated in the first cavity, and the second filling part is at least partially accommodated in the second cavity; when the driving mechanism drives the first molded part to move to a second preset position away from the first cavity, the first filling part is separated from the first cavity, and under the action of the first sliding part and the second sliding part, the second molded part moves along the guide groove to the position where the second filling part is separated from the second cavity, so that there is no need to set up multiple driving mechanisms to drive the first molded part and the second molded part to move respectively, thereby reducing the number of parts in the mold and simplifying the structure of the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the specific embodiments or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0017] Figure 1 is a schematic diagram of an explosion state of a mold provided in an embodiment of the present invention;

[0018] Figure 2 is a schematic structural diagram of a first mold core in a mold provided in an embodiment of the present invention;

[0019] Figure 3 is a schematic structural diagram of a second mold core in a mold provided in an embodiment of the present invention;

[0020] Figure 4 is a schematic structural diagram of a first molded part and a second molded part in a mold provided in an embodiment of the present invention at a first viewing angle;

[0021] Figure 5 is a schematic structural diagram of a first molded part and a second molded part in a mold provided in an embodiment of the present invention at a second viewing angle;

[0022] Figure 6 is a schematic diagram of a partial structure of a mold provided in an embodiment of the present invention when a first molded part is in a first preset position;

[0023] Figure 7 yes Figure 6 A magnified view of the area shown in part A;

[0024] Figure 8 is a schematic diagram of a partial structure of a mold provided in an embodiment of the present invention when the first molded part is in a second preset position;

[0025] Fig. 9 yes Figure 8 A magnified view of the area shown in part B;

[0026] Fig.10 yes Figure 8 Enlarged view of the area shown in middle C;

[0027] Fig.11 is a schematic structural diagram of a second mold core, a first limiting strip and a second limiting strip provided in an embodiment of the present invention;

[0028] Fig.12 is a schematic structural diagram of the mold provided in an embodiment of the present invention when the first molded part is in a first preset position;

[0029] Fig.13 It is a schematic structural diagram of the mold provided in an embodiment of the present invention when the first molded part is in the second preset position. DETAILED DESCRIPTION

[0030] In order to facilitate the understanding of the present invention, the present invention is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on another element or there can be one or more centered elements therebetween. When an element is described as "connected" to another element, it can be directly connected to another element or there can be one or more centered elements therebetween. The orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "vertical", "horizontal", etc. used in this specification is based on the orientation or positional relationship shown in the accompanying drawings, only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0031] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this specification includes any and all combinations of one or more of the related listed items.

[0032] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0033] See also Figures 1 to 5The mold 1 includes: a first mold core 11, a second mold core 12, a first molding part 15, a second molding part 16 and a driving mechanism 17. The first mold core 11 is provided with a first cavity 111 and a second cavity 112, and the second mold core 12 is provided with a third cavity 121, a fourth cavity 122 and a guide groove 123. When the first mold core 11 and the second mold core 12 are molded together, the first cavity 111 and the third cavity 121 together form the first cavity 13, the second cavity 112 and the fourth cavity 122 together form the second cavity 14, and the extension direction of the guide groove 123 is the same as the direction of the opening of the second cavity 14. The first molding part 15 is slidably arranged on the second mold core 12, and the first molding part 15 is provided with a first filling part 151 and a first sliding part 152, and the first filling part 151 is used to fill part of the first cavity 13. The second molding member 16 is provided with a guide portion 161, a second filling portion 162 and a second sliding portion 163. The second filling portion 162 is used to fill part of the second cavity 14. The guide portion 161 is slidably arranged in the guide groove 123. The guide groove 123 is used to limit the movement direction of the second molding member 16, so that the second molding member 16 can only slide along the extension direction of the guide groove 123, so that the second filling portion 162 can withdraw from the second cavity 14 along the direction of the opening of the second cavity 14, or the second filling portion 162 can enter the second cavity 14 in the opposite direction of the opening of the second cavity 14. The driving mechanism 17 is installed on the first mold core 11, and the driving mechanism 17 is connected to the first molding member 15. The driving mechanism 17 is used to drive the first molding member 15 to move. The first sliding portion 152 of the first molding member 15 and the second sliding portion 163 of the second molding member 16 are slidably matched. When the first molding member 15 is in the first preset position, as shown in FIG. Figure 6 Hehe Figure 7 As shown, the first filling portion 151 is at least partially accommodated in the first cavity 13, the second filling portion 162 is at least partially accommodated in the second cavity 14, and there is a gap between the first filling portion 151 and the inner wall of the first cavity 13 for filling with plastic material, and there is also a gap between the second filling portion 162 and the inner wall of the second cavity 14 for filling with plastic material, so that plastic can be injected into the first cavity 13 and the second cavity 14 to form a plastic part (not shown); when the driving mechanism 17 drives the first molded part 15 to move to the second preset position in a direction away from the first cavity 13, as shown Figure 8 and Fig. 9As shown, the first filling part 151 is separated from the first cavity 13, and under the action of the first slide part 152 and the second slide part 163, the second molding part 16 moves in the extension direction of the guide groove 123 to the position where the second filling part is separated from the second cavity 14. In this embodiment, the movement direction of the second molding part 16 is limited by the guide groove 123, so that the second molding part 16 can only move back and forth in the direction of the opening of the second cavity 14, so that the second filling part 162 can enter or exit the second cavity 14 from the opening of the second cavity 14, and then through the cooperation between the first slide part 152 and the second slide part 163, during the movement of the first molding part 15 from the first preset position to the second preset position, the second filling part 162 of the second molding part 16 gradually leaves the second cavity 14 along the extension direction of the guide groove 123. Therefore, it is not necessary to set two driving mechanisms 17 in the mold 1 to drive the first molding part 15 and the second molding part 16 to move respectively, thereby reducing the number of parts of the mold 1 and simplifying the structure of the mold 1.

[0034] For further information, see Figure 4 and Figure 8 The first molded part 15 has a first surface 153, and the angle between the straight line along the direction of movement of the first molded part 15 and the first surface 153 is an acute angle, and the first sliding portion 152 is disposed on the first surface 153. Figure 5 and Figure 8 The second molding part 16 has a second surface 164, the second surface 164 is parallel to the first surface 153, the second sliding portion 163 is arranged on the second surface 164, and when the first molding part 15 moves from the first preset position toward the second preset position, the first molding part 15 can generate a force parallel to the guide groove 123 on the second molding part 16 through the first sliding portion 152, and the force causes the second filling portion 162 of the second molding part 16 to move in the direction away from the second cavity 14.

[0035] Further, see 4 and Figure 5The first slide part 152 is a slide rail, and the second slide part 163 is a slide groove. The slide rail is inserted into the slide groove, and the slide rail can slide along the slide groove. The cross-sectional shape of the first slide part 152 perpendicular to its extension direction is a trapezoid, and the width of the first slide part 152 on the side away from the first surface 153 is greater than the width of the first slide part 152 on the side close to the first surface 153. The cross-sectional shape of the second slide part 163 perpendicular to the extension direction of the second slide part 163 is the same as the cross-sectional shape of the first slide part 152 perpendicular to the first slide part 152, so that the first slide part 152 and the second slide part 163 can slide relative to each other, and when the first molded part 15 moves from the first preset position to the second preset position, the first slide part 152 can drive the second molded part 16 to move along the extension direction of the guide groove 123, so that the second filling part 162 can be gradually separated from the second cavity 14.

[0036] In some embodiments, the first sliding portion 152 can also be a sliding groove, and the second sliding portion 163 can be a sliding rail (not shown), which can also form a sliding fit between the first sliding portion 152 and the second sliding portion 163, and when the first molded part 15 moves from the first preset position toward the second preset position, the first sliding portion 152 can drive the second molded part 16 to move along the extension direction of the guide groove 123.

[0037] For the above-mentioned drive mechanism 17, please refer to Figure 1 , Figure 6 , Figure 7 , Figure 8 and Fig. 9 The driving mechanism 17 includes a driving rod 171, one end of which is fixed to the first mold core 11. The first molded part 15 is provided with a driving hole 155, and the other end of the driving rod 171 is inserted into the driving hole 155. From the end of the driving hole 155 away from the first mold core 11 to the end close to the first mold core 11, the driving hole 155 is inclined toward the third cavity 121. Therefore, when the first mold core 11 moves in a direction away from the second mold core 12, the driving rod 171 drives the first molded part 15 to move in a direction away from the third cavity 121; when the first mold core 11 moves in a direction close to the second mold core 12, the driving rod 171 drives the first molded part 15 to move in a direction close to the third cavity 121. That is to say, when the first mold core 11 is opened, the driving rod 171 simultaneously drives the first molding part 15 to move from the first preset position toward the second preset position, so that the first filling portion 151 is gradually separated from the first cavity 13, and the first molding part 15 simultaneously drives the second molding part 16 to move along the extension direction of the guide groove 123, so that the second filling portion 162 is gradually separated from the second cavity 14. In this way, there is no need to separately configure a cylinder for the first molding part 15 to drive the first molding part 15 to move, thereby simplifying the structure of the mold 1.

[0038] In some embodiments, the first molding part 15 is further provided with a limiting portion 154, which is located at one end of the first sliding portion 152 away from the third cavity 121. When the first molding part 15 is in the first preset position, the limiting portion 154 abuts against the surface of the guide portion 161 away from the fourth cavity 122. The limiting portion 154 is used to limit the first molding part 15 to prevent the first filling portion 151 from being inserted too deep into the first cavity 13, thereby reducing the risk of unqualified plastic parts molded by the mold 1.

[0039] In some embodiments, see Figure 8 , Fig. 9 and Fig.11 The mold 1 also includes a first limiting strip 18, and the second mold core 12 is also provided with a receiving groove 124. The third cavity 121, the fourth cavity 122 and the guide groove 123 are all connected to the receiving groove 124, and the first molded part 15 and the second molded part 16 are partially received in the receiving groove 124. The first limiting strip 18 is provided on a side wall of the receiving groove 124, and a first limiting groove 19 is formed between the first limiting strip 18 and the groove bottom of the receiving groove 124. The extension direction of the first limiting groove 19 is the same as the direction of the opening of the first cavity 13. The first molded part 15 is also provided with a first guide boss 156, and the first guide boss 156 and the first limiting groove 19 are slidably matched, so that the first molded part 15 can only move back and forth along the extension direction of the first limiting groove 19.

[0040] For further information, see Figure 8 , Fig. 9 and Fig.11 The mold 1 further includes a second limiting strip 20, which is disposed on the other side wall of the receiving groove 124. The second limiting strip 20 is opposite to the first limiting strip 18, and a second limiting groove 21 is formed between the second limiting strip 20 and the groove bottom of the receiving groove 124. The extension direction of the second limiting groove 21 is the same as the extension direction of the first limiting groove 19. The first molded part 15 is further provided with a second guide boss 157, which is opposite to the first guide boss 156. The second guide boss 157 is slidably matched with the second limiting groove 21. The first limiting groove 19 and the second limiting groove 21 are used together to guide the sliding direction of the first molded part 15. In this embodiment, by providing a second limiting groove 21, and the second limiting groove 21 is opposite to the first limiting groove 19, the first limiting groove 19 and the second limiting groove 21 jointly limit the movement direction of the first molded part 15, so that the first molded part 15 can remain stable during the process of moving from the first preset position to the second preset position, reducing the risk of the first filling portion 151 scratching the plastic part due to a slight change in the movement direction of the first molded part 15.

[0041] In some embodiments, see Figure 6 , Figure 7 , Fig.12 and Fig.13 The mold 1 further includes an elastic member 22, and the second mold core 12 is further provided with a first receiving groove 125, and the first receiving groove 125 is communicated with the receiving groove 124. The first molding member 15 is further provided with a second receiving groove 158, and the second receiving groove 158 is coaxial with the first receiving groove 125. One end of the elastic member 22 is received in the first receiving groove 125, and the other end of the elastic member 22 is received in the second receiving groove 158. When the first molding member 15 is in the first preset position, the elastic member 22 is in a compressed state. Due to the assembly tolerance between the driving hole 155 and the driving rod 171, the inner diameter of the driving hole 155 is larger than the outer diameter of the driving rod 171, that is, when the driving rod 171 drives the first molded part 15 to move to the first preset position, the first filling portion 151 is at least partially accommodated in the first cavity 13. At this time, if injection molding is performed into the first cavity 13, the plastic will impact the first filling portion 151, thereby causing the position of the first molded part 15 to change slightly, resulting in the inner cavity structure of the injection-molded plastic part being unqualified. Therefore, in this embodiment, when the first molded part 15 is in the first preset position, the elastic part 22 is compressed so that the elastic part 22 outputs a force to the first molded part 15, and the force causes the inner wall of the driving hole 155 of the first molded part 15 to abut against the outer wall of the driving rod 171, thereby fixing the first molded part 15, thereby reducing the risk of position changes of the first molded part 15 during injection molding, which is beneficial to improving the yield rate of plastic parts.

[0042] In some embodiments, see Figure 1 , Figure 4 and Figure 8 The mold 1 also includes a mold frame 23, which is provided with an installation groove 231 and an extension groove 232. The second mold core 12 is partially accommodated in the installation groove 231, and the extension groove 232 is connected to the accommodation groove 124 of the second mold core 12, and the first limiting strip 18 and the second limiting strip 20 are both partially accommodated in the extension groove 232, and there is a space between the first limiting strip 18 and the bottom of the extension groove 232 for the first guide boss 156 of the first molded part 15 to pass through, and there is a space between the second limiting strip 20 and the bottom of the extension groove 232 for the second guide boss 157 of the first molded part 15 to pass through, so that when the first molded part 15 moves to the second preset position, the first molded part 15 can be partially accommodated in the extension groove 232. In this embodiment, the second mold core 12 is installed in the installation groove 231 of the mold frame 23, and the extension groove 232 is connected to the receiving groove 124 of the second mold core 12, so that when the first molding part 15 moves to the second preset position, the extension groove 232 can accommodate part of the first molding part 15, thereby avoiding the first molding part 15 and the second mold core 12 from being completely separated.

[0043] In some embodiments, see Figure 1 and Figure 2 The first mold core 11 is also provided with an avoidance groove 113, and the first cavity 111 and the second cavity 112 are both connected to the avoidance groove 113, and when the first mold core 11 and the second mold core 12 are molded, the avoidance groove 113 accommodates part of the first molded part 15 and part of the second molded part 16, so that the first mold core 11 and the second mold core 12 can fit tightly.

[0044] In some embodiments, see Figures 1 to 10 The number of the first cavity 111, the second cavity 112, the third cavity 121, the fourth cavity 122, the guide groove 123, the first molding part 15, the second molding part 16 and the driving rod 171 are all multiple. When the first mold core 11 and the second mold core 12 are molded, a first cavity 111 and a third cavity 121 together form a first cavity 13, a second cavity 112 and a fourth cavity 122 together form a second cavity 14, and the extension direction of a guide groove 123 is the same as the direction of the opening of a second cavity 14. A first molding part 15 is provided with a first filling portion 151, a first sliding portion 152 and a driving hole 155. A first filling portion 151 is used to fill a part of a first cavity 13. A second molding part 16 is provided with a guide portion 161, a second filling portion 162 and a second sliding portion 163, a guide portion 161 is slidably disposed in a guide groove 123, a first sliding portion 152 and a second sliding portion 163 are slidably fitted together, and a second filling portion 162 is used to fill a portion of a second cavity 14. One end of multiple driving rods 171 is fixed to the first mold core 11, and the other end of a driving rod 171 is inserted into a driving hole 155. When the first mold core 11 moves in a direction away from the second mold core 12, a driving rod 171 drives a first molding part 15 to move through a driving hole 155, so that a first filling portion 151 of a first molding part 15 gradually leaves a first cavity 13, and under the action of a first sliding portion 152 of a first molding part 15 and a second sliding portion 163 of a second molding part 16, a second molding part 16 moves along the extension direction of a guide groove 123, so that a second filling portion 162 of a second molding part 16 gradually leaves a second cavity 14. In this embodiment, by providing a plurality of first cavities 111, second cavities 112, third cavities 121, fourth cavities 122, guide grooves 123, first molded parts 15, second molded parts 16 and drive rods 171, a plurality of plastic parts can be injection molded simultaneously in one mold 1, thereby improving the production efficiency of plastic parts.

[0045] In the embodiment of the present invention, a first cavity 111 and a second cavity 112 are provided in the first mold core 11, and a third cavity 121, a fourth cavity 122 and a guide groove 123 are provided in the second mold core 12. When the first mold core 11 and the second mold core 12 are molded together, the first cavity 111 and the third cavity 121 jointly form a first cavity 13, and the second cavity 112 and the fourth cavity 122 jointly form a second cavity 14, wherein the extension direction of the guide groove 123 is the same as the direction of the opening of the second cavity 14; a first molded part 15 is slidably provided on the second mold core 12, and a first filling portion 151 and a first sliding portion 152 are provided on the first molded part 15; a guide portion 161, a second filling portion 162 and a second sliding portion 163 are provided on the second molded part 16, and the guide portion 161 is slidably provided on the guide groove 123, so that the second molded part 16 can only slide along the guide groove 123, and the second sliding portion 163 The first molding part 15 is driven to move toward or away from the first cavity 13 by the sliding fit between the first sliding part 152 and the first molding part 15 through the driving mechanism 17; when the first molding part 15 is in the first preset position, the first filling part 151 is at least partially accommodated in the first cavity 13, and the second filling part 162 is at least partially accommodated in the second cavity 14; when the driving mechanism 17 drives the first molding part 15 to move to the second preset position in the direction away from the first cavity 13, the first filling part 151 is separated from the first cavity 13, and under the action of the first sliding part 152 and the second sliding part 163, the second molding part 16 moves along the guide groove 123 to the position where the second filling part 162 is separated from the second cavity 14, so that there is no need to set up multiple driving mechanisms 17 to drive the first molding part 15 and the second molding part 16 to move respectively, thereby reducing the number of parts in the mold 1 and simplifying the structure of the mold 1.

[0046] The present invention further provides an embodiment of an injection molding device, which includes the above-mentioned mold. The specific structure and function of the mold can be referred to the above-mentioned embodiment, and will not be described in detail here.

[0047] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A mold, characterized in that: include: The first mold core is provided with a first cavity and a second cavity; The second mold core is provided with a third cavity, a fourth cavity and a guide groove. When the first mold core and the second mold core are molded together, the first cavity and the third cavity together form a first cavity, and the second cavity and the fourth cavity together form a second cavity. The extension direction of the guide groove is the same as the direction of the opening of the second cavity. A first molding member is slidably disposed on the second mold core, wherein the first molding member is provided with a first filling portion and a first sliding portion; a driving mechanism connected to the first molding member and used to drive the first molding member to move toward or away from the first cavity; The second molded part is provided with a guide portion, a second filling portion and a second sliding portion, wherein the guide portion is slidably arranged in the guide groove, and the second sliding portion is slidably matched with the first sliding portion; When the first molding member is in a first preset position, the first filling portion is at least partially received in the first cavity, and the second filling portion is at least partially received in the second cavity; When the driving mechanism drives the first molding part to move to a second preset position in a direction away from the first cavity, the first filling part is separated from the first cavity, and under the action of the first sliding part and the second sliding part, the second molding part moves along the guide groove to the position where the second filling part is separated from the second cavity.

2. The mold according to claim 1, characterized in that: The first molded part has a first surface, the angle between a straight line along the direction of movement of the first molded part and the first surface is an acute angle, and the first sliding portion is disposed on the first surface; The second molded part has a second surface, the second surface is parallel to the first surface, and the second sliding portion is disposed on the second surface.

3. The mold according to claim 2, characterized in that: The first sliding part is a sliding rail, the second sliding part is a sliding groove, and the sliding rail and the sliding groove are slidably matched.

4. The mold according to claim 3, characterized in that: The cross-sectional shape of the first sliding portion perpendicular to its extension direction is a trapezoid, and the width of the first sliding portion at a side away from the first surface is greater than the width of the first sliding portion at a side close to the first surface; The cross-sectional shape of the second sliding portion perpendicular to the extension direction thereof is the same as the cross-sectional shape of the first sliding portion.

5. The mold according to claim 1, characterized in that: The first molding member is provided with a limiting portion, and the limiting portion is located at an end of the first sliding portion away from the third cavity. When the first molding member is in a first preset position, the limiting portion abuts against the guide portion.

6. The mold according to claim 1, characterized in that: The driving mechanism comprises a driving rod, one end of which is fixed to the first mold core; The first molding member is provided with a driving hole, and from an end of the driving hole away from the first mold core to an end of the driving hole close to the first mold core, the driving hole is inclined toward the third cavity, and the other end of the driving rod is inserted into the driving hole; When the first mold core moves in a direction away from the second mold core, the driving rod drives the first molding piece to move in a direction away from the third cavity; when the first mold core moves in a direction close to the second mold core, the driving rod drives the first molding piece to move in a direction close to the third cavity.

7. The mold according to claim 6, characterized in that: The second mold core is further provided with a receiving groove, the third cavity, the fourth cavity and the guide groove are all connected to the receiving groove, and the first molding piece and the second molding piece are partially received in the receiving groove; The mold further includes a first limiting strip, which is disposed on a side wall of the receiving groove, and a first limiting groove is formed between the first limiting strip and the groove bottom of the receiving groove; The first molded part is also provided with a first guide boss, and the first guide boss is slidably matched with the first limiting groove.

8. The mold according to claim 7, characterized in that: The mold further includes a second limiting strip, which is disposed on the other side wall of the receiving groove, the second limiting strip is opposite to the first limiting strip, and a second limiting groove is formed between the second limiting strip and the groove bottom of the receiving groove; The first molded part is further provided with a second guide boss, the second guide boss is opposite to the first guide boss, and the second guide boss is slidably matched with the second limiting groove.

9. The mold according to claim 7, characterized in that: The mold also includes an elastic member, the second mold core is further provided with a first receiving groove, the first molding member is further provided with a second receiving groove, one end of the elastic member is received in the first receiving groove, and the other end of the elastic member is received in the second receiving groove.

10. An injection molding device, characterized in that: Comprising a mold as described in any one of claims 1-9.

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