Injection mold capable of being formed in combined mode

Abstract

The utility model discloses an injection mold capable of being formed in a combined manner, which relates to the technical field of molds and comprises an upper mold and a lower mold, the upper mold is provided with an upper mold core, the lower mold is provided with a lower mold core, and the upper mold core and the lower mold core are butted with each other to form a mold cavity for forming a product; a first mounting groove is formed along the surface of the upper mold core, an insert assembly is embedded in the first mounting groove in a sliding manner, the insert assembly comprises a first insert and a second insert, and the first insert and the second insert abut against each other in a limiting manner in the first mounting groove and are matched with the first mounting groove in a limiting manner; a first product profiling groove and a second product profiling groove are formed in the lower end of the first insert and the lower end of the second insert respectively and are both in butt joint with the mold cavity. A first fixing groove acting on the upper mold core is formed in the upper mold, and the upper end of the first insert and the upper end of the second insert are both in abutting and limiting fit with the inner wall of the first fixing groove; and the production cost is effectively saved.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to an injection mold capable of being combined and molded. Background Art

[0002] Molds are various molds and tools used in industrial production to obtain the desired products by injection molding, blow molding, extrusion, die casting or forging molding, smelting, stamping and other methods. In short, molds are tools used to make molded objects. This tool is composed of various parts, and different molds are composed of different parts. It mainly realizes the surface processing of objects by changing the physical state of the molded material, and is known as the "mother of industry". Injection molds are tools for producing plastic products. Generally, injection molds are composed of an upper mold and a lower mold. During injection molding, the upper mold and the lower mold are closed to form a runner system and a mold cavity for plastic products. During injection molding, the mold is clamped on the injection molding machine, and the molten plastic is injected into the mold cavity and cooled and formed in the mold cavity. At the same time, the molten plastic is also cooled in the runner system to form a runner system condensate. After the plastic product is formed, the upper mold and the lower mold are separated, and the plastic product is ejected from the mold cavity through the ejection system and leaves the mold. Finally, the upper mold and the lower mold are closed again for the next injection molding. The entire injection molding process is carried out in a cycle.

[0003] like Figure 1 As shown, a plastic product has a protrusion-like structure on its upper surface. Since the product is a series product, it has protrusion-like structures of different shapes. In the actual production process, the series products are produced in small batches. Therefore, for the small batch series products, if multiple sets of molds are set according to their different protrusion-like structures, the production cost will be greatly increased.

[0004] Therefore, it is necessary to propose an improved technical solution to solve the above problems. Utility Model Content

[0005] The utility model aims to overcome the above-mentioned shortcomings and provide a technical solution that can solve the above-mentioned problems.

[0006] An injection mold that can be combined for molding, comprising an upper mold and a lower mold, wherein the upper mold has an upper mold core, and the lower mold has a lower mold core, and the upper mold core and the lower mold core are connected to each other to form a mold cavity for molding a product;

[0007] A first mounting groove is provided along the surface of the upper mold core, and an insert assembly is slidably engaged in the first mounting groove. The insert assembly includes a first insert and a second insert. The first insert and the second insert are mutually limited and abutted in the first mounting groove, and are limited and matched with the first mounting groove;

[0008] The first and second product profiling grooves are respectively provided at the lower ends of the first insert and the second insert, and the first and second product profiling grooves are both butted against the mold cavity;

[0009] The upper die is provided with a first fixing groove acting on the upper die core, and the upper end of the first insert and the upper end of the second insert are both in abutment and limited cooperation with the inner wall of the first fixing groove.

[0010] As a further solution of the utility model: the diameter of the first installation groove is gradually reduced from the upper end to the lower end thereof to form a shape that is larger at the top and smaller at the bottom, and the first insert and the second insert together match the shape of the first installation groove.

[0011] As a further solution of the utility model: a notch is opened along one side of the first insert, and after the first insert is placed in the first installation groove, the notch and the inner wall of the first installation groove form a second installation groove, and the second insert corresponds to the second installation groove.

[0012] As a further solution of the utility model: the side of the first insert and the side of the second insert are respectively extended with a first limiting portion and a second limiting portion, the inner side of the first mounting groove is convexly provided with a first step portion and a second step portion, the first limiting portion and the first step portion are limitedly matched, and the second limiting portion and the second step portion are limitedly matched;

[0013] Wherein, the first step portion and the second step portion are both close to the slot position of the first installation slot.

[0014] As a further solution of the utility model: the first limiting portion and the first step portion are in limiting abutment cooperation, the second limiting portion and the second step portion are in limiting abutment cooperation, and the outer side of the first limiting portion and the outer side of the second limiting portion are spaced apart from the inner side of the first installation groove.

[0015] As a further solution of the utility model: the insert components are provided in multiple groups, and the multiple groups of insert components are arranged in a ring array;

[0016] Wherein, a second fixing groove is opened along the inner side of the first fixing groove, an abutment block is arranged in the second fixing groove, and the abutment block is limitedly abutted and matched with multiple groups of insert components.

[0017] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0018] A first mounting groove is provided on the surface of the upper mold core, which runs through the upper mold core, and an insert assembly is slidably engaged in the first mounting groove. The insert assembly includes a first insert and a second insert. The lower ends of the first insert and the second insert are respectively provided with a first product profiling groove and a second product profiling groove for molding a protruding structure of the product, wherein the first insert and the second insert can abut against each other and limit each other, and the first insert and the second insert can be engaged with the first mounting groove and limited. Combined with the setting of the first fixing groove for fixing the upper mold core, the first insert and the second insert can be fixed under the engagement and limiting action of the first mounting groove and the abutment and limiting action of the first fixing groove, thereby meeting the molding requirements of the product features. Simultaneously, along with the separation of the upper mold core and the upper mold, the first insert and the second insert can be taken out along the first mounting groove, thereby achieving the purpose of replacement, that is, through the combination of different first inserts and second inserts, different technical features (protruding structures) of the molding product can be formed, and there is no need to match multiple sets of molds, thereby effectively saving production costs.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 It is a structural schematic diagram of the product in the utility model;

[0022] Figure 2 It is a schematic diagram of the structure of the upper die core and the lower die core of the utility model;

[0023] Figure 3 yes Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0024] Figure 4 It is a structural schematic diagram of the upper mold core of the utility model;

[0025] Figure 5 It is a structural schematic diagram of the first insert and the second insert of the utility model from one viewing angle;

[0026] Figure 6 It is a structural schematic diagram of the first insert and the second insert of the utility model from another perspective;

[0027] Figure 7It is a schematic diagram of the explosion structure of the upper die and the upper die core.

[0028] The reference numerals and names in the figures are as follows:

[0029] 1. Upper die core; 2. Lower die core; 3. First mounting groove; 4. Insert assembly; 5. First insert; 6. Second insert; 7. First product profiling groove; 8. Second product profiling groove; 9. First fixing groove; 10. Notch; 11. Second mounting groove; 12. First limiting portion; 13. Second limiting portion; 14. First step portion; 15. Second step portion; 16. Second fixing groove; 17. Abutment block; 18. Upper die; 19. Protrusion-like structure. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] See also Figure 1-7 In an embodiment of the utility model, a combined injection mold includes an upper mold 18 and a lower mold, wherein the upper mold 18 has an upper mold core 1, and the lower mold has a lower mold core 2, and the upper mold core 1 and the lower mold core 2 are connected to each other to form a mold cavity for molding a product;

[0032] A first mounting groove 3 is provided along the surface of the upper mold core 1, and an insert assembly 4 is slidably engaged in the first mounting groove 3. The insert assembly 4 includes a first insert 5 and a second insert 6. The first insert 5 and the second insert 6 are mutually limited and abutted in the first mounting groove 3, and are limited and matched with the first mounting groove 3;

[0033] The first insert 5 and the second insert 6 are respectively provided with a first product profiling groove 7 and a second product profiling groove 8 at their lower ends, and the first product profiling groove 7 and the second product profiling groove 8 are both butted against the mold cavity;

[0034] The upper die 18 is provided with a first fixing groove 9 acting on the upper die core 1 , and the upper ends of the first insert 5 and the second insert 6 are both in abutment with the inner wall of the first fixing groove 9 for limiting fit.

[0035] In the technical solution of the utility model, a first mounting groove 3 is provided on the surface of the upper mold core 1 and penetrates the upper mold core 1, and an insert assembly 4 is slidably engaged in the first mounting groove 3, and the insert assembly 4 includes a first insert 5 and a second insert 6, and the lower ends of the first insert 5 and the second insert 6 are respectively provided with a first product profiling groove 7 and a second product profiling groove 8 for forming a protruding structure 19 of the product, wherein the first insert 5 and the second insert 6 can abut against each other and limit each other, and the first insert 5 and the second insert 6 can also be engaged with the first mounting groove 3 and limit each other, and combined with the upper mold core 1 for fixing By setting the first fixing groove 9 of the mold core 1, the first insert 5 and the second insert 6 can be fixed under the interlocking limit of the first mounting groove 3 and the abutment limit of the first fixing groove 9, thereby meeting the molding requirements of product features, and simultaneously, along with the separation of the upper mold core 1 and the upper mold 18, the first insert 5 and the second insert 6 can be taken out along the first mounting groove 3, thereby achieving the purpose of replacement, that is, through the combination of different first inserts 5 and second inserts 6, different technical features (protrusion-like structures 19) of the molding product can be achieved, and there is no need to match multiple sets of molds, which effectively saves production costs.

[0036] The combination of different first inserts 5 and second inserts 6, i.e., different first product profiling grooves 7 of the first inserts 5 and different second product profiling grooves 8 of the second inserts 6. Since the difference between this series of products lies only in the different protrusion-like structures 19 on their upper surfaces, the shape of the mold cavity corresponding to the lower mold core 2 does not need to be changed, and thus only the shape of the mold cavity corresponding to the upper mold core 1 needs to be changed, i.e., the lower end shape of the mold cavity corresponding to the first inserts 5 and the second inserts 6.

[0037] In the embodiment of the utility model, the diameter of the first installation groove 3 is gradually reduced from the upper end to the lower end thereof to form a shape that is larger at the top and smaller at the bottom. The first insert 5 and the second insert 6 match the shape of the first installation groove 3 .

[0038] The shape of the first mounting groove 3, which is larger at the top and smaller at the bottom, can be understood as a generally conical structure, and the first insert 5 and the second insert 6 are matched with the shape of the first mounting groove 3 to meet the interlocking limit of the first insert 5 and the second insert 6 in the first mounting groove 3.

[0039] In the embodiment of the utility model, a notch 10 is opened along one side of the first insert 5. After the first insert 5 is placed in the first mounting groove 3, the notch 10 and the inner wall of the first mounting groove 3 form a second mounting groove 11, and the second insert 6 corresponds to the second mounting groove 11.

[0040] By setting the notch 10 on one side of the first insert 5, the first insert 5 is placed in the first mounting groove 3 to form a second mounting groove 11 that matches the second insert 6, that is, the sequence of disassembly and assembly of the first insert 5 and the second insert 6 is realized, thereby effectively reducing assembly errors, and ensuring the quality and stability of the first insert 5 and the second insert 6, thereby ensuring the molding of the product's technical characteristics.

[0041] In the embodiment of the utility model, the side of the first insert 5 and the side of the second insert 6 are respectively extended with a first limiting portion 12 and a second limiting portion 13, and the inner side of the first mounting groove 3 is convexly provided with a first step portion 14 and a second step portion 15, the first limiting portion 12 and the first step portion 14 are limited and matched, and the second limiting portion 13 and the second step portion 15 are limited and matched;

[0042] The first step portion 14 and the second step portion 15 are both close to the slot opening of the first mounting slot 3 .

[0043] Through the first step structure and the second step structure protruding in the first mounting groove 3, combined with the first limiting portion 12 and the second limiting portion 13 protruding on the sides of the first insert 5 and the second insert 6 respectively, during the assembly process, the first insert 5 can abut against the first step portion 14 through the first limiting portion 12, and the second insert 6 can abut against the second step portion 15 through the second limiting portion 13, thereby further effectively improving the assembly accuracy of the first insert 5 and the second insert 6, which is beneficial to ensure the molding of the product.

[0044] In the embodiment of the utility model, the first limiting portion 12 is in limiting abutment with the first step portion 14 , and the second limiting portion 13 is in limiting abutment with the second step portion 15 , and the outer side of the first limiting portion 12 and the outer side of the second limiting portion 13 are spaced apart from the inner side of the first mounting groove 3 .

[0045] The setting of the spacing distance facilitates the process of replacing the first insert 5 and the second insert 6. The spacing distance can provide space for disassembling the first insert 5 and the second insert 6, which is a clever design.

[0046] In the embodiment of the utility model, the insert components 4 are provided in multiple groups, and the multiple groups of insert components 4 are arranged in a ring array;

[0047] A second fixing groove 16 is opened along the inner side of the first fixing groove 9 , an abutment block 17 is arranged in the second fixing groove 16 , and the abutment block 17 is limitedly abutted and matched with the plurality of insert components 4 .

[0048] By using multiple groups of insert assemblies 4, that is, correspondingly setting up multiple groups of workstations, the production efficiency of the product is beneficial, and the multiple groups of insert assemblies 4 are abutted by the abutment blocks 17, so that the multiple groups of insert assemblies 4 can be effectively limited by the abutment blocks 17, which facilitates the assembly accuracy of the multiple groups of insert assemblies 4.

[0049] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

Claims

1. A combined molding injection mold, characterized in that: It comprises an upper mold and a lower mold, wherein the upper mold has an upper mold core, and the lower mold has a lower mold core, and the upper mold core and the lower mold core are connected to each other to form a mold cavity for molding products; A first mounting groove is provided along the surface of the upper mold core, and an insert assembly is slidably engaged in the first mounting groove. The insert assembly includes a first insert and a second insert. The first insert and the second insert are mutually limited and abutted in the first mounting groove, and are limited and matched with the first mounting groove; The first and second product profiling grooves are respectively provided at the lower ends of the first insert and the second insert, and the first and second product profiling grooves are both butted against the mold cavity; The upper die is provided with a first fixing groove acting on the upper die core, and the upper end of the first insert and the upper end of the second insert are both in abutment and limited cooperation with the inner wall of the first fixing groove.

2. The combined molding injection mold according to claim 1, characterized in that: The diameter of the first installation groove is gradually reduced along the upper end toward the lower end thereof to form a shape that is larger at the top and smaller at the bottom. The first insert and the second insert together match the shape of the first installation groove.

3. The combined molding injection mold according to claim 1 or 2, characterized in that: A notch is provided along one side of the first insert. After the first insert is placed in the first mounting groove, the notch and the inner wall of the first mounting groove surround a second mounting groove, and the second insert corresponds to the second mounting groove.

4. The combined molding injection mold according to claim 1, characterized in that: A first limiting portion and a second limiting portion are respectively extended from the side of the first insert and the side of the second insert, a first step portion and a second step portion are convexly provided on the inner side of the first mounting groove, the first limiting portion and the first step portion are limitedly matched, and the second limiting portion and the second step portion are limitedly matched; Wherein, the first step portion and the second step portion are both close to the slot position of the first installation slot.

5. The combined molding injection mold according to claim 4, characterized in that: The first limiting portion is in limiting abutment with the first step portion, the second limiting portion is in limiting abutment with the second step portion, and the outer sides of the first limiting portion and the second limiting portion are spaced apart from the inner side of the first installation groove.

6. The combined molding injection mold according to claim 1, characterized in that: The insert components are provided in multiple groups, and the multiple groups of insert components are arranged in a circular array; Wherein, a second fixing groove is opened along the inner side of the first fixing groove, an abutment block is arranged in the second fixing groove, and the abutment block is limitedly abutted and matched with multiple groups of insert components.

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