Injection mold and injection molding mechanism

Abstract

The injection mold comprises a first insert core, a second insert core and a third insert core, the first insert core is provided with a first combination surface and a first forming groove, and the second insert core is provided with a second combination surface, a forming part, a second forming groove and a glue injection channel. The third insert core is provided with a first connecting surface, a second connecting surface, a third connecting surface, a forming hole, an avoiding hole and a glue injection hole, the third insert core is connected between the first insert core and the second insert core, the first forming groove, the second forming groove, the forming hole and the forming part form an injection molding cavity, and the glue injection channel is communicated between the glue injection hole and the injection molding cavity; the diameter of the port, facing the first forming groove, of the forming hole is equal to the diameter of the notch of the first forming groove, and the diameter of the port, facing the second forming groove, of the forming hole is larger than the diameter of the notch of the second forming groove. According to the injection mold and the injection molding mechanism comprising the injection mold, the problem that the segment difference at the mold splitting position in the male mold insert cannot be accurately controlled is solved, and the production yield of products is increased.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of injection molds, in particular to an injection mold and an injection mechanism. BACKGROUND

[0002] In actual production and processing, an injection mold is usually used to form a product. At present, a product is designed as a reverse buckle structure according to production requirements, and the product parting line has a step difference based on the reverse buckle structure, wherein the product parting line part is formed in a public mold of the injection mold, that is, the parting part in the public mold of the injection mold has a step difference. However, due to the machining and assembly errors of the integral public mold, the step difference of the parting part in the public mold of the injection mold cannot be accurately controlled, thereby causing a low production yield of the product. CONTENT OF THE UTILITY MODEL

[0003] In view of the above, it is necessary to provide an injection mold and an injection mechanism to solve the problem that the step difference of the parting part in the public mold cannot be accurately controlled, and to improve the production yield of the product.

[0004] The embodiment of the application provides an injection mold, which comprises:

[0005] A first insert has a first combining surface and a first forming groove opened in the first combining surface;

[0006] A second insert has a second combining surface, a forming part protruding from the second combining surface, a second forming groove opened in the forming part, and a glue injection channel opened in the forming part;

[0007] A third insert has a first connecting surface, a second connecting surface arranged opposite to the first connecting surface, a third connecting surface connecting the first connecting surface and the second connecting surface, a forming hole opened in the first connecting surface, an avoiding hole opened in the second connecting surface and communicated with the forming hole, and a glue injection hole opened in the third connecting surface and communicated with the avoiding hole;

[0008] The third insert is connected between the first insert and the second insert, the first connecting surface is connected with the first combining surface, the second connecting surface is connected with the second combining surface, the forming part passes through the avoiding hole and the glue injection hole and extends to the first forming groove, the first forming groove, the second forming groove, the forming hole and the forming part form an injection cavity, the glue injection channel is communicated between the glue injection hole and the injection cavity, the diameter of the port of the forming hole facing the first forming groove is equal to the diameter of the slot of the first forming groove, and the diameter of the port of the forming hole facing the second forming groove is greater than the diameter of the slot of the second forming groove.

[0009] In some embodiments, the first insert further has a first positioning hole formed in the first bonding surface, the first positioning hole being disposed on the periphery of the first forming groove; the third insert further has a first positioning column protruding from the first connecting surface, the first positioning column being disposed on the periphery of the forming hole, and when the third insert is connected to the first insert, the first positioning column is adapted to be inserted into the first positioning hole.

[0010] In some embodiments, the second insert further has a second positioning hole formed in the second bonding surface, the second positioning hole being disposed on the periphery of the forming portion; the third insert further has a second positioning column protruding from the second connecting surface, the second positioning column being disposed on the periphery of the avoiding hole, and when the third insert is connected to the second insert, the second positioning column is adapted to be inserted into the second positioning hole.

[0011] In some embodiments, the third insert further has a first connecting hole penetrating through the second positioning column, the second connecting surface and the first connecting surface, the bottom of the second positioning hole is formed with a second connecting hole, and when the second positioning column is adapted to be inserted into the second positioning hole, the first connecting hole and the second connecting hole are in communication.

[0012] In some embodiments, the third insert further has a third connecting hole penetrating through the first connecting surface and the second connecting surface, the second insert further has a fourth connecting hole formed in the second bonding surface, the fourth connecting hole being disposed on the periphery of the forming portion, and when the third insert is connected to the second insert, the third connecting hole and the fourth connecting hole are in communication.

[0013] In some embodiments, the forming portion includes a first portion and a second portion, the first portion is disposed on the second bonding surface, the second portion is disposed on the side of the first portion away from the second bonding surface, the first portion is formed with the second forming groove, the second forming groove is disposed around the second portion, and the glue injection channel is formed in the first portion and the second portion.

[0014] In some embodiments, the side surface of the first portion is formed with a first channel, the second portion is formed with a second channel extending in the protruding direction of the forming portion, and the first channel and the second channel are in communication to form the glue injection channel.

[0015] In some embodiments, the second insert further has an insertion surface disposed opposite to the second bonding surface, the second insert further has a ejection hole penetrating through the insertion surface, the second bonding surface and the forming portion, and the ejection hole is used for passing an external ejector pin structure to lift the product formed in the injection cavity.

[0016] In some embodiments, the first entry sub is further provided with a side insertion hole in communication with the first forming groove, and the side insertion hole is used for allowing an external side insertion piece to pass through and extend into the first forming groove, so as to form a specific structure on a product formed in the injection cavity.

[0017] The embodiment of the present application further provides an injection mechanism, comprising:

[0018] The injection mold according to any one of the technical solutions above;

[0019] The first mold base is provided with a first accommodating hole, and the first accommodating hole is used for accommodating the first entry sub;

[0020] The second mold base is provided with a first surface, a second surface arranged opposite to the first surface, a second accommodating hole penetrating through the first surface and the second surface, a glue injection hole penetrating through the first surface and the second surface and arranged in a spaced manner with the second accommodating hole, and a glue injection channel arranged on the first surface and in communication with the glue injection hole, the second accommodating hole is used for accommodating the second entry sub and the third entry sub, and the glue injection channel is in communication with the glue injection hole.

[0021] The injection mold and the injection mechanism comprising the injection mold are used for processing, the first entry sub is used as a female mold entry sub, the second entry sub and the third entry sub are connected and used as a male mold entry sub, the connection position of the second entry sub and the third entry sub is a parting position of the male mold entry sub, the male mold entry sub is divided into the second entry sub and the third entry sub for processing, the step difference of the parting position of the male mold entry sub can be effectively controlled, the problem that the step difference of the parting position in the male mold entry sub cannot be accurately controlled is solved, and the production yield of a product is improved. In addition, when the injection mold is processed, the first entry sub and the second entry sub can be connected and polished together, so that the step difference of the parting position can be controlled within a certain tolerance, the step difference, misplacement and burr of the parting line of the product with a reverse-docking structure formed in the injection cavity can be controlled. The injection mold has a simple structure, and is convenient to process and assemble, has a low cost, and is convenient to replace. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 FIG. 1 is a structural schematic diagram of an injection mold provided by an embodiment of the present application.

[0023] Figure 2 FIG. 2 is an exploded schematic diagram of the injection mold shown in FIG. 1. Figure 1

[0024] Figure 3 FIG. 3 is another perspective exploded schematic diagram of the injection mold shown in FIG. 1. Figure 1

[0025] Figure 4 FIG. 4 is a structural schematic diagram of an injection mechanism provided by an embodiment of the present application.​​Figure 1 A sectional view of the injection mold shown along IV-IV.

[0026] Figure 5 Figure 1 A sectional view of the injection mold shown along V-V.

[0027] Figure 6 A structural schematic diagram of an injection mechanism provided by an embodiment of the present application.

[0028] Figure 7 Figure 6 An exploded schematic diagram of the injection mechanism shown.

[0029] Main element symbol explanation: injection mechanism 1, injection mold 100, first insert 10, first joint surface 11, first forming groove 12, auxiliary hole 13, first positioning hole 14, side insertion hole 15, second insert 20, second joint surface 21, forming part 22, first part 221, second part 222, second forming groove 23, glue injection channel 24, first channel 241, second channel 242, second positioning hole 25, second connecting hole 26, fourth connecting hole 27, insertion surface 28, material pushing hole 291, glue overflow channel 292, third insert 30, first connecting surface 31, second connecting surface 32, third connecting surface 33, forming hole 34, position avoiding hole 35, glue injection hole 36, first positioning column 37, second positioning column 38, first connecting hole 391, third connecting hole 392, injection cavity 40, first mold base 200, first accommodating hole 201, side opening hole 202, positioning edge groove 203, second mold base 300, first surface 301, second surface 302, second accommodating hole 303, glue pouring hole 304, glue pouring channel 305, positioning protrusion 306. DETAILED DESCRIPTION

[0030] The embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only, and are used only for explaining the present application, and cannot be understood as a limitation of the present application.

[0031] ​​In the description of the present application, it is to be understood by the terms indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, it should be noted that the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.

[0032] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the term "connection" should be broadly understood, for example, it can be a fixed connection, or a detachable connection, or an integral connection; it can be a mechanical connection, or an electrical connection or can communicate with each other, it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above-mentioned terms in the present application can be understood according to the specific circumstances.

[0033] Some embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0034] Please refer to Figure 1 The embodiment of the present application provides an injection mold 100. The injection mold 100 is used for injection molding products (not shown in the figure), and the products can be a cap shell structure, which has an undercut structure on the outside, that is, the parting line of the cap shell structure has a step difference. The injection mold 100 comprises a first insert 10, a second insert 20 and a third insert 30, the first insert 10 can be used as a female mold insert, and the second insert 20 and the third insert 30 can be used as a male mold insert after being connected.

[0035] Please refer to Figure 2 、 Figure 3 、 Figure 4 and Figure 5The first insert 10 has a first joint surface 11 and a first forming groove 12 formed in the first joint surface 11. The second insert 20 has a second joint surface 21, a forming portion 22 protruding from the second joint surface 21, a second forming groove 23 formed in the forming portion 22, and a glue injection channel 24 formed in the forming portion 22. The third insert 30 has a first connecting surface 31, a second connecting surface 32 arranged opposite to the first connecting surface 31, a third connecting surface 33 connecting the first connecting surface 31 and the second connecting surface 32, a forming hole 34 formed in the first connecting surface 31, a position avoiding hole 35 formed in the second connecting surface 32 and communicating with the forming hole 34, and a glue injection hole 36 formed in the third connecting surface 33 and communicating with the position avoiding hole 35.

[0036] The third insert 30 is connected between the first insert 10 and the second insert 20, the first connecting surface 31 is connected with the first joint surface 11, the second connecting surface 32 is connected with the second joint surface 21, the forming portion 22 passes through the position avoiding hole 35 and the glue injection hole 36 and extends to the first forming groove 12, the first forming groove 12, the second forming groove 23, the forming hole 34 and the forming portion 22 form a injection cavity 40, the glue injection channel 24 is communicated between the glue injection hole 36 and the injection cavity 40, the diameter of the port of the forming hole 34 facing the first forming groove 12 is equal to the diameter of the slot of the first forming groove 12, and the diameter of the port of the forming hole 34 facing the second forming groove 23 is greater than the diameter of the slot of the second forming groove 23. It can be understood that the connection between the second connecting surface 32 and the second joint surface 21 is the parting line of the male mold insert, that is, the parting line of the product with a step. By limiting the diameter of the port of the forming hole 34 facing the second forming groove 23 to be greater than the diameter of the slot of the second forming groove 23, the parting line of the male mold insert has a step. In actual use, glue is poured into the glue injection hole 36, the glue flows into the injection cavity 40 along the glue injection channel 24, and the glue is solidified in the injection cavity 40 to form a product.

[0037] It can be understood that, in order to smoothly pour glue into the glue injection hole 36, the first joint surface 11 of the first insert 10 also has an auxiliary hole 13 in the embodiment. When the first insert 10 is connected with the third insert 30, the auxiliary hole 13 is communicated with the glue injection hole 36 to form a larger diameter hole structure. By injecting glue into the larger diameter hole structure, the injection flow of the glue is improved, which is beneficial to smoothly pouring glue into the glue injection hole 36.

[0038] Therefore, when the injection mold 100 is processed, the first insert 10 is used as a female mold insert, the second insert 20 and the third insert 30 are connected to be used as a male mold insert, the connection part of the second insert 20 and the third insert 30 is the parting line of the male mold insert, the male mold insert is divided into the second insert 20 and the third insert 30 for processing, the step difference of the parting line of the male mold insert can be effectively controlled, the problem that the step difference of the parting line in the male mold insert cannot be accurately controlled is solved, and the production yield of the product is improved. In addition, when the injection mold 100 is processed, the first insert 10 and the second insert 20 can be connected and polished together to control the step difference of the parting line within a certain tolerance, so that the step difference, misalignment and burr of the parting line of the product with the inverted buckle structure formed by the injection cavity 40 can be controlled. By dividing the male mold insert into the second insert 20 and the third insert 30, the structure of the injection mold 100 is simple, the processing and assembly are more convenient, the cost is lower, and the replacement is more convenient.

[0039] In order to ensure the connection accuracy of the first insert 10 and the second insert 20, in the embodiment, the first insert 10 further has a first positioning hole 14 formed in the first combining surface 11, and the first positioning hole 14 is arranged on the side of the first forming groove 12. The third insert 30 further has a first positioning column 37 protruding from the first connecting surface 31, and the first positioning column 37 is arranged on the side of the forming hole 34. When the third insert 30 is connected with the first insert 10, the first positioning column 37 is inserted into the first positioning hole 14. In the embodiment, the number of the first positioning hole 14 is two, and the two first positioning holes 14 are symmetrically arranged on the side of the first forming groove 12. The number of the first positioning column 37 is also two, and the two first positioning columns 37 are symmetrically arranged on the side of the forming hole 34. The cross section of the first positioning column 37 is rectangular, and the cross section of the first positioning hole 14 is rectangular. Therefore, by arranging the first positioning hole 14 and the first positioning column 37, when the first insert 10 is connected with the second insert 20, the first positioning column 37 is inserted into the first positioning hole 14, so as to ensure the connection accuracy of the first insert 10 and the second insert 20.

[0040] It can be understood that in other embodiments, the cross section of the first positioning column 37 and the first positioning hole 14 can also be circular, elliptical, rhombic, etc., which are not limited in the embodiment.

[0041] In order to ensure the connection accuracy of the second inlet sub 20 and the third inlet sub 30, in the embodiment, the second inlet sub 20 further has a second positioning hole 25 opened in the second joint surface 21, and the second positioning hole 25 is arranged on the periphery of the shaped part 22. The third inlet sub 30 further has a second positioning column 38 protruding from the second joint surface 32, and the second positioning column 38 is arranged on the periphery of the avoidance hole 35. When the third inlet sub 30 is connected with the second inlet sub 20, the second positioning column 38 is adapted to be inserted into the second positioning hole 25. In the embodiment, the number of the second positioning hole 25 is two, and the two second positioning holes 25 are symmetrically arranged on the periphery of the shaped part 22, and the two second positioning holes 25 are respectively located at the edges of the second inlet sub 20; the number of the second positioning column 38 is also two, and the two second positioning columns 38 are symmetrically arranged on the periphery of the avoidance hole 35, and the two second positioning columns 38 are respectively located at the edges of the second joint surface 21. The cross section of the second positioning column 38 is rectangular, and the cross section of the second positioning hole 25 is rectangular. In this way, by arranging the second positioning hole 25 and the second positioning column 38, when the second inlet sub 20 is connected with the third inlet sub 30, the second positioning column 38 is adapted to be inserted into the second positioning hole 25, so as to ensure the connection accuracy of the second inlet sub 20 and the third inlet sub 30.

[0042] It can be understood that, in other embodiments, the cross sections of the second positioning column 38 and the second positioning hole 25 can also be circular, elliptical, rhombic, etc., and the embodiments of the present application do not make specific limitations thereon.

[0043] In order to ensure the connection stability of the second inlet sub 20 and the third inlet sub 30, in the embodiment, the third inlet sub 30 further has a first connecting hole 391 penetrating through the second positioning column 38, the second joint surface 32 and the first joint surface 31, and the bottom of the second positioning hole 25 is provided with a second connecting hole 26. When the second positioning column 38 is adapted to be inserted into the second positioning hole 25, the first connecting hole 391 and the second connecting hole 26 are in communication. In the embodiment, the number of the first connecting hole 391 and the second connecting hole 26 is also two. In the actual connection of the second inlet sub 20 and the third inlet sub 30, when the second positioning column 38 of the third inlet sub 30 is adapted to be inserted into the second positioning hole 25 of the second inlet sub 20, the first connecting hole 391 and the second connecting hole 26 are in communication, and an external screw (not shown in the figure) passes through the first connecting hole 391 and is connected with the second connecting hole 26, so as to realize the stable connection of the second inlet sub 20 and the third inlet sub 30. The first connecting hole 391 can be a stepped through hole, and the second connecting hole 26 can be a threaded hole. In this way, by arranging the first connecting hole 391 and the second connecting hole 26, and by using the external screw to pass through the first connecting hole 391 and be connected with the second connecting hole 26, the stable connection of the second inlet sub 20 and the third inlet sub 30 is realized, so as to ensure the connection stability of the second inlet sub 20 and the third inlet sub 30.

[0044] In order to further ensure the connection stability of the second entry sub 20 and the third entry sub 30, in the embodiment, the third entry sub 30 further has a third connecting hole 392 penetrating the first connecting surface 31 and the second connecting surface 32, and the second entry sub 20 further has a fourth connecting hole 27 arranged on the second combination surface 21 and arranged on the circumferential side of the shaped part 22. When the third entry sub 30 is connected with the second entry sub 20, the third connecting hole 392 and the fourth connecting hole 27 are in communication. In the embodiment, the number of the third connecting hole 392 and the fourth connecting hole 27 is two, the third connecting hole 392 can be a stepped through hole, and the third connecting hole 392 can be a threaded hole. In the actual connection of the second entry sub 20 and the third entry sub 30, when the second positioning column 38 of the third entry sub 30 is adapted to be inserted into the second positioning hole 25 of the second entry sub 20, the first connecting hole 391 and the second connecting hole 26 are in communication, the third connecting hole 392 and the fourth connecting hole 27 are in communication, and the external screw is passed through the first connecting hole 391 and connected with the second connecting hole 26, and the external screw is passed through the third connecting hole 392 and connected with the fourth connecting hole 27, so as to realize the stable connection of the second entry sub 20 and the third entry sub 30. In this way, by further arranging the third connecting hole 392 and the fourth connecting hole 27, the first connecting hole 391 and the second connecting hole 26 are cooperated to further ensure the connection stability of the second entry sub 20 and the third entry sub 30.

[0045] In the embodiment, the shaped part 22 can include a first part 221 and a second part 222. The first part 221 is arranged on the second combination surface 21, the first part 221 is substantially a circular truncated cone, the diameter of one end of the first part 221 close to the second combination surface 21 is greater than the diameter of the other end of the first part 221 away from the second combination surface 21. The second part 222 is arranged on the side of the first part 221 away from the second combination surface 21, the first part 221 is used for shaping the product into a hollow structure, and the specific shape of the second part 222 can be arranged adaptively according to the structure of the product, which is not limited in the embodiment. The first part 221 is provided with a second forming groove 23, and the second forming groove 23 is arranged around the second part 222. The glue injection channel 24 is arranged on the first part 221 and the second part 222. In the actual connection of the second entry sub 20 and the third entry sub 30, the relief hole 35 of the third entry sub 30 is adapted to be sleeved on the first part 221 of the shaped part 22, so that the glue injection hole 36 is in communication with the glue injection channel 24, the second part 222 passes through the forming hole 34 and extends into the first forming groove 12, and when the glue is poured into the glue injection hole 36, the glue flows from the first part 221 to the second part 222 along the glue injection channel 24, and then flows from the second part 222 to the first forming groove 12, and then flows from the first forming groove 12 to the forming hole 34 and the second forming groove 23, so that the glue fills the entire injection cavity 40 from top to bottom, the glue in the injection cavity 40 is filled fully and is not easy to produce bubbles, and the curing effect of the product is good.

[0046] In the embodiment, the first part 221 is provided with a first channel 241, the second part 222 is provided with a second channel 242 extending along the protruding direction of the shaped part 22, the first channel 241 and the second channel 242 are communicated to form the glue injection channel 24. The second insert 20 is further provided with an insertion surface 28 opposite to the second joint surface 21, the second channel 242 further penetrates the second part 222, the first part 221, the second joint surface 21 and the insertion surface 28 of the second insert 20, that is, the second channel 242 is a through hole, in actual use, an external ejector pin structure (not shown in the figure) can be inserted into the second channel 242, in the first aspect, the external ejector pin structure forms a seal with the second channel 242, so as to avoid the glue flowing out of the second channel 242 to the outside of the second insert 20, in the second aspect, the external ejector pin structure can be used to eject the product after solidification. In this way, by providing the first channel 241 in the first part 221 and the second channel 242 in the second part 222 to form the glue injection channel 24, it is convenient to inject glue into the injection cavity 40 and convenient to demold the product after solidification.

[0047] In order to facilitate the demolding of the product, in the embodiment, the second insert 20 is further provided with a material ejection hole 291 penetrating the insertion surface 28, the second joint surface 21 and the shaped part 22, the material ejection hole 291 is used for the external ejector pin structure to pass through to lift the product in the injection cavity 40. It can be understood that the second insert 20 is further provided with a glue overflow channel 292 penetrating the insertion surface 28, the second joint surface 21 and the shaped part 22, the glue overflow channel 292 is used for the external ejector pin structure to be inserted, wherein when the injection cavity 40 is filled with glue, the glue in the glue overflow channel 292 can apply pressure to the external ejector pin structure in the glue overflow channel 292 to determine that the injection cavity 40 is filled with glue. In this way, by providing the above-mentioned material ejection hole 291 and glue overflow channel 292, cooperating with the second channel 242, it is convenient to demold the product; in addition, by providing the above-mentioned glue overflow channel 292, it is convenient to demold the product, and it can also determine that the injection cavity 40 is filled with glue.

[0048] It can be understood that by limiting the depth of the external ejector pin structure in the second channel 242, the material ejection hole 291 and the glue overflow channel 292, the glue in the second channel 242, the material ejection hole 291 and the glue overflow channel 292 can also adaptively form a structure on the product, that is, the second channel 242, the material ejection hole 291 and the glue overflow channel 292 can also be used as part of the injection cavity 40, which will not be described in detail in the embodiment of the application.

[0049] In order to form a specific structure, such as a pattern, a hole, a groove or the like, on the product, the first insert 10 is further provided with a side insertion hole 15 which is in communication with the first forming groove 12. The side insertion hole 15 is used for allowing an external side insertion member (not shown) to pass through and extend into the first forming groove 12, so as to form a specific structure on the product formed in the injection cavity 40. The number of the side insertion hole 15 is two, and the two side insertion holes 15 are respectively arranged on the opposite sides of the first insert 10. For example, when a hole structure is needed to be formed on the product, an external side insertion member which is matched with the hole structure is inserted into the first side insertion hole 15, so that the external side insertion member is inserted into the first forming groove 12 and abuts against the second part 222 of the forming part 22. After the glue in the injection cavity 40 is solidified, the product after solidification forms a hole structure at the position where the external side insertion member is inserted. For example, when a pattern structure is needed to be formed on the product, an external side insertion member which is matched with the pattern structure is inserted into the first side insertion hole 15, so that the external side insertion member is inserted into the first forming groove 12 and is arranged in a spaced manner with the second part 222 of the forming part 22. After the glue in the injection cavity 40 is solidified, the product after solidification forms a pattern structure at the position where the external side insertion member is inserted. In this way, the side insertion hole 15 is arranged to facilitate the formation of a specific structure on the product, and the generality of the injection mold 100 is high.

[0050] It can be understood that in other embodiments, the number of the side insertion hole 15 can be more or less, and the arrangement position of the side insertion hole 15 can be set according to actual conditions, which is not limited in the embodiments of the present application.

[0051] Please refer to Figure 6 and Figure 7 The embodiments of the present application further provide an injection mechanism 1. The injection mechanism 1 comprises the injection mold 100, the first mold base 200 and the second mold base 300 as described in the above embodiments. The first mold base 200 is used for arranging the first insert 10 of the injection mold 100, and the second mold base 300 is used for arranging the second insert 20 and the third insert 30 of the injection mold 100. The second insert 20 and the third insert 30 are connected and arranged in the second mold base 300. The first mold base 200 drives the first insert 10 to approach the second mold base 300, so that the second insert 20 and the third insert 30 are connected to be clamped.

[0052] Specifically, the first mold base 200 is provided with a first accommodating hole 201 for accommodating the first insert 10. The second mold base 300 is provided with a first surface 301, a second surface 302 opposite to the first surface 301, a second accommodating hole 303 penetrating through the first surface 301 and the second surface 302, a glue filling hole 304 penetrating through the first surface 301 and the second surface 302 and spaced apart from the second accommodating hole 303, and a glue filling channel 305 provided on the first surface 301 and communicating with the glue filling hole 304, the second accommodating hole 303 being used for accommodating the second insert 20 and the third insert 30, and the glue filling channel 305 communicating with the glue injection hole 36.

[0053] In the embodiment, the number of the injection mold 100 is four, and correspondingly, the number of the first accommodating hole 201 is four, the number of the second accommodating hole 303 is four, and the number of the glue filling hole 304 is two, and the glue filling channel 305 communicates with each second accommodating hole 303.

[0054] It can be understood that in other embodiments, the number of the injection mold 100 can also be more or less, and the number or shape of the first accommodating hole 201, the second accommodating hole 303, the glue filling hole 304 and the glue filling channel 305 can be adaptively set, and the embodiment of the present application does not make specific limitation thereon.

[0055] Therefore, in actual use, the injection mechanism 1 of the embodiment sets four first inserts 10 in the corresponding first accommodating holes 201 respectively; connects four second inserts 20 with corresponding third inserts 30 respectively; sets the connected second inserts 20 and third inserts 30 in the corresponding second accommodating holes 303; moves the four first inserts 10 close to the second mold base 300 by the first mold base 200, so as to connect the four first inserts 10 with the corresponding third inserts 30 to form injection cavities 40; fills glue into the glue filling hole 304, the glue flows into each glue injection hole 36 along the glue filling hole 304 and the glue filling channel 305, and then flows into each injection cavity 40 from each glue injection hole 36; when the glue is solidified and formed into products in each injection cavity 40, the first mold base 200 moves away from the second mold base 300 to separate the first insert 10 from the third insert 30; and after the first insert 10 is separated from the third insert 30, the products are lifted and demolded by the external ejector pin mechanism.

[0056] In the embodiment, the side surface of the first mold base 200 is provided with a side opening hole 202 corresponding to the first insert 10, and the side opening hole 202 is used for inserting an external side insert into the side insertion hole 15 of the first insert 10.

[0057] In order to ensure the clamping precision of the first die holder 200 and the second die holder 300, in the embodiment, four corners of the side of the first die holder 200 facing the second die holder 300 are respectively provided with positioning edge grooves 203. Four corners of the first face 301 of the second die holder 300 are respectively provided with positioning protrusions 306. The positioning protrusions 306 are matched with the positioning edge grooves 203. In this way, when the first die holder 200 approaches the second die holder 300, the positioning protrusions 306 are matched and inserted into the positioning edge grooves 203, so as to ensure the clamping precision of the first die holder 200 and the second die holder 300.

[0058] It can be understood that in other embodiments, the external ejector pin structure, the external plug, and the like can also be part of the injection molding mechanism 1, and the embodiments of the present application do not make specific limitations thereto.

[0059] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application.

Claims

1. An injection mold characterized in that, The application relates to a first sub, a second sub and a third sub. The first sub has a first bonding surface and a first forming groove opened in the first bonding surface. The second sub has a second bonding surface, a forming part protruding from the second bonding surface, a second forming groove opened in the forming part and a glue injection channel opened in the forming part. The third sub has a first connecting surface, a second connecting surface arranged opposite to the first connecting surface, a third connecting surface connecting the first connecting surface and the second connecting surface, a forming hole opened in the first connecting surface, a position avoiding hole opened in the second connecting surface and communicated with the forming hole and a glue injection hole opened in the third connecting surface and communicated with the position avoiding hole. The third sub is connected between the first sub and the second sub, the first connecting surface is connected with the first bonding surface, the second connecting surface is connected with the second bonding surface, the forming part passes through the position avoiding hole and the glue injection hole and extends to the first forming groove, the first forming groove, the second forming groove, the forming hole and the forming part form an injection cavity, the glue injection channel is communicated between the glue injection hole and the injection cavity, the diameter of the port of the forming hole facing the first forming groove is equal to the diameter of the slot of the first forming groove, and the diameter of the port of the forming hole facing the second forming groove is greater than the diameter of the slot of the second forming groove.

2. The injection mold of claim 1, wherein, The first sub further has a first positioning hole opened in the first bonding surface, and the first positioning hole is arranged on the periphery of the first forming groove.

3. The injection mold of claim 1, wherein, The third sub further has a first positioning column protruding from the first connecting surface, and the first positioning column is arranged on the periphery of the forming hole.

4. The injection mold of claim 3, wherein The second sub further has a second positioning hole opened in the second bonding surface, and the second positioning hole is arranged on the periphery of the forming part.

5. The injection mold of claim 1, wherein, The third sub further has a first connecting hole penetrating through the second positioning column, the second connecting surface and the first connecting surface. The second positioning hole has a second connecting hole opened in the bottom of the second positioning hole. The third sub further has a third connecting hole penetrating through the first connecting surface and the second connecting surface. The second sub further has a fourth connecting hole opened in the second bonding surface, and the fourth connecting hole is arranged on the periphery of the forming part. The third connecting hole is communicated with the fourth connecting hole when the third sub is connected with the second sub.

6. The injection mold of claim 1, wherein, The forming part comprises a first part and a second part, the first part is arranged on the second joint surface, the second part is arranged on the side of the first part away from the second joint surface, the first part is provided with the second forming groove, the second forming groove is arranged around the second part, and the glue injection channel is arranged on the first part and the second part.

7. The injection mold of claim 6, wherein The side surface of the first part is provided with a first channel, the second part is provided with a second channel extending in the protruding direction of the forming part, and the first channel and the second channel are communicated to form the glue injection channel.

8. The injection mold of claim 1, wherein, The second insert also has an insertion surface arranged opposite to the second joint surface, and a stripping hole penetrating through the insertion surface, the second joint surface and the forming part, the stripping hole is used for penetrating an external stripping structure to lift the product formed in the injection cavity.

9. The injection mold of claim 1, wherein, The first insert is also provided with a side insertion hole communicated with the first forming groove, the side insertion hole is used for penetrating an external side insertion member and extending to the first forming groove, so that a specific structure is formed on the product formed in the injection cavity.

10. An injection molding mechanism characterized by, The injection mold comprises: The injection mold according to any one of claims 1 to 9; A first mold base is provided with a first accommodating hole for accommodating the first insert; A second mold base has a first surface, a second surface arranged opposite to the first surface, a second accommodating hole penetrating through the first surface and the second surface, a glue injection hole penetrating through the first surface and the second surface and arranged spaced apart from the second accommodating hole, and a glue injection channel arranged on the first surface and communicated with the glue injection hole, the second accommodating hole is used for accommodating the second insert and the third insert, and the glue injection channel is communicated with the glue injection hole.

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