Injection mold frame and injection molding equipment

Abstract

The utility model discloses an injection mold base and injection molding equipment, and relates to the technical field of injection molds, and the injection mold base comprises a fixed mold frame, a movable mold frame, a fixed mold core assembly and a movable mold core assembly. Wherein the fixed mold frame is installed on the injection molding side of the injection molding equipment, the fixed mold frame is provided with a fixed mold cavity, the movable mold frame is installed on the ejection side of the injection molding equipment, the movable mold frame is provided with a movable mold cavity, the movable mold frame can move relative to the fixed mold frame to achieve mold opening and closing, the fixed mold core assembly is detachably embedded in the fixed mold cavity, and the fixed mold core assembly is provided with a fixed mold core cavity. The movable mold core assembly is detachably embedded in the movable mold cavity, the movable mold core assembly is provided with a movable mold core cavity, and the movable mold core cavity and the fixed mold core cavity are combined to be used for forming a product. According to the injection mold frame, the development cost of the mold is reduced, the machining period of the mold is shortened, the production efficiency of an enterprise is improved, and the production cost is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of injection molds, and in particular to an injection mold frame and injection molding equipment. Background Art

[0002] At present, the injection mold industry has an increasing demand for the development of injection molds, the corresponding development costs of new products are getting higher and higher, and the delivery cycle requirements are getting shorter and shorter.

[0003] In the existing system, the model of injection mold development is that one set of molds corresponds to one product, that is, a set of molds can only produce one product during the production process. If another product needs to be produced, a new set of molds needs to be developed accordingly. In this way, during the new product development stage, due to the uncertainty of performance and market demand, the investment cost of the mold will be high, and the processing cycle of the entire mold will be relatively long.

[0004] Therefore, it is necessary for those skilled in the art to provide an injection mold frame in a timely manner that can quickly produce different products and reduce production costs. Utility Model Content

[0005] The purpose of this application is to provide an injection mold frame and injection molding equipment, which solves the problem of needing to redevelop molds when producing different products.

[0006] To achieve the above objectives, the present application provides an injection mold frame, comprising:

[0007] The fixed mold frame is used to be installed on the injection side of the injection molding equipment, and the fixed mold frame is provided with a fixed mold cavity;

[0008] The movable mold frame is used to be installed on the ejection side of the injection molding equipment. The movable mold frame is provided with a movable mold cavity. The movable mold frame can move relative to the fixed mold frame to realize mold opening and closing;

[0009] The fixed mold core assembly is detachably embedded in the fixed mold cavity, and the fixed mold core assembly is provided with a fixed mold core cavity;

[0010] The movable mold core assembly is detachably embedded in the movable mold cavity. The movable mold core assembly is provided with a movable mold core cavity. The movable mold core cavity is combined with the fixed mold core cavity to form the product.

[0011] In some embodiments, the injection mold base further comprises:

[0012] A plurality of fixed mold core fixing bolts, which are used to connect the fixed mold core assembly and the fixed mold frame so that the fixed mold core assembly is fixed to the fixed mold cavity;

[0013] A plurality of movable mold core fixing bolts are used to connect the movable mold core assembly and the movable mold frame so that the movable mold core assembly is fixed to the movable mold cavity.

[0014] In some embodiments, the fixed mold core assembly includes a fixed mold core body, the fixed mold core body is provided with a fixed mold core cavity and a boss, and the boss is provided with a flow channel communicating with the fixed mold core cavity;

[0015] The movable mold core assembly includes a movable mold core body, which is provided with a movable mold core cavity and a groove. After the movable mold core assembly and the fixed mold core assembly are molded together, the movable mold core cavity and the fixed mold core cavity jointly form a mold cavity for molding the product, and the boss is embedded in the groove to make the flow channel a closed flow channel.

[0016] In some embodiments, the injection mold frame also includes an injection feeding unit, which is installed on the fixed mold frame. The injection feeding unit includes a feeding pipe arranged in the fixed mold cavity. The boss also has a through hole, and the feeding pipe is used to extend into the through hole to realize the delivery of injection molding raw materials to the runner.

[0017] In some embodiments, the fixed mold core assembly further includes two auxiliary molding fixing blocks, which are fixed to the fixed mold core body and are respectively located on both sides of the fixed mold core cavity, and the inner wall surfaces of the two auxiliary molding fixing blocks are both first inclined surfaces;

[0018] The movable mold core assembly also includes two auxiliary molding movable blocks, which are slidably connected to the movable mold core body and are respectively located on both sides of the movable mold core cavity, the outer wall surfaces of the two auxiliary molding movable blocks are both second inclined surfaces, and the two auxiliary molding movable blocks are both connected to the auxiliary molding structure;

[0019] The movable mold core body is also provided with two embedding grooves, which are respectively located on the outside of the two auxiliary molding movable blocks. After the movable mold core assembly and the fixed mold core assembly are molded together, the two auxiliary molding fixed blocks are respectively embedded in the two embedding grooves, and the two first inclined surfaces respectively squeeze the two second inclined surfaces, so that the two auxiliary molding movable blocks move in the direction of closing together, thereby realizing that at least part of the auxiliary molding structure enters the mold cavity.

[0020] In some embodiments, the fixed mold frame includes:

[0021] Fixed mold panel, used to fix to the injection molding equipment during injection molding;

[0022] The fixed mold template is arranged on the fixed mold panel and is used to install the fixed mold core assembly;

[0023] At least two guide pins are provided on the fixed mold platen for guiding the movement of the movable mold frame when the mold is opened and closed;

[0024] The fixed mold heat insulation board is arranged on the side of the fixed mold panel away from the fixed mold template, and is used to reduce the heat transfer between the fixed mold panel and the injection molding equipment to control the temperature of the fixed mold frame.

[0025] In some embodiments, the movable mold frame includes:

[0026] The movable mold panel is used to be fixed to the injection molding equipment during injection molding;

[0027] The movable mold foot is arranged on the movable mold panel;

[0028] The movable mold template is arranged on the movable mold foot and is used to install the movable mold core assembly;

[0029] At least two guide sleeves are provided on the movable mold plate, each guide sleeve is used to cooperate with a corresponding guide post to guide the movement of the movable mold frame when opening and closing the mold;

[0030] The movable mold insulation board is arranged on the side of the movable mold panel away from the movable mold foot, and is used to reduce the heat transfer between the movable mold panel and the injection molding equipment to control the temperature of the movable mold frame.

[0031] In some embodiments, the movable mold frame also includes at least two ejector pin return pins, each of which is fixed on the movable mold panel and extends out of the movable mold template. Each ejector pin return pin is used to provide a set of an ejector base plate supporting the ejector and an ejector fixing plate fixing the ejector to assist in resetting the ejector, the ejector base plate and the ejector fixing plate.

[0032] In some embodiments, a fixed mold core limiting structure is provided in the fixed mold cavity, and the fixed mold core limiting structure is used to limit the fixed mold core assembly in the embedding direction of the fixed mold core assembly, so that the height difference between the fixed mold core assembly and the fixed mold frame does not exceed a first preset range; a movable mold core limiting structure is provided in the movable mold cavity, and the movable mold core limiting structure is used to limit the movable mold core assembly in the embedding direction of the movable mold core assembly, so that the height difference between the movable mold core assembly and the movable mold frame does not exceed a second preset range.

[0033] The present application also provides an injection molding device, comprising the injection molding mold frame described in any one of the above items.

[0034] With respect to the above-mentioned background technology, the injection mold frame provided in the embodiment of the present application includes a fixed mold frame, a movable mold frame, a fixed mold core assembly and a movable mold core assembly. Among them, the fixed mold frame is installed on the injection side of the injection molding equipment, the fixed mold frame is provided with a fixed mold cavity, the movable mold frame is installed on the ejection side of the injection molding equipment, the movable mold frame is provided with a movable mold cavity, the movable mold frame can move relative to the fixed mold frame to realize opening and closing of the mold, the fixed mold core assembly is detachably embedded in the fixed mold cavity, the fixed mold core assembly is provided with a fixed mold core cavity, the movable mold core assembly is detachably embedded in the movable mold cavity, the movable mold core assembly is provided with a movable mold core cavity, and the movable mold core cavity is combined with the fixed mold core cavity to form the product. It can be seen that compared with the traditional method of redeveloping a new set of molds when producing different products, the injection mold frame provided in the embodiment of the present application has quickly replaceable fixed mold core components and movable mold core components on the fixed mold frame and the movable mold frame respectively. The fixed mold core components and the movable mold core components are arranged according to the production needs of different products. In this way, the above-mentioned injection mold frame can use the same set of fixed mold frame and movable mold frame, and can realize the rapid replacement of the fixed mold core components and the movable mold core components when another product needs to be produced. In this way, there is no need to redevelop the mold frame component, and only the fixed mold core components and the movable mold core components need to be processed, which reduces the development cost of the mold, shortens the processing cycle of the mold, and helps enterprises improve production efficiency and reduce production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related technologies, the drawings required for use in the embodiments or the related technical descriptions are briefly introduced below. Obviously, the drawings described below are merely embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0036] FIG1 is a schematic diagram of the overall structure of an injection mold frame in an embodiment of the present application;

[0037] FIG2 is a schematic diagram of the connection between the fixed mold frame and the fixed mold core assembly in the injection mold frame shown in FIG1;

[0038] FIG3 is a schematic diagram of the connection between the movable mold frame and the movable mold core assembly in the injection mold frame shown in FIG1 ;

[0039] FIG4 is a schematic structural diagram of the fixed mold frame in FIG2;

[0040] FIG5 is a schematic structural diagram of the movable mold frame in FIG3;

[0041] FIG6 is a schematic structural diagram of the fixed mold core assembly in FIG2;

[0042] FIG7 is a schematic structural diagram of the movable mold core assembly in FIG3;

[0043] FIG8 is a cross-sectional view of an injection mold frame in an embodiment of the present application;

[0044] FIG9 is a cross-sectional view of another injection mold frame in an embodiment of the present application;

[0045] FIG10 is a schematic diagram of the assembly of an injection mold frame in an embodiment of the present application;

[0046] FIG. 11 is a schematic diagram of the structure of the injection molding equipment in an embodiment of the present application.

[0047] in:

[0048] 1-injection mold frame, 2-hydraulic machinery, 3-screw, 4-hopper, 5-barrel, 6-heater, 7-ejection system, 71-ejector base plate, 72-ejector fixing plate;

[0049] 10-fixed mold frame, 101-fixed mold heat insulation board, 102-fixed mold panel, 103-fixed mold template, 1031-fixed mold cavity, 104-guide column, 105-injection feeding unit, 1051-feeding pipe;

[0050] 20-movable mold frame, 201-movable mold heat insulation board, 202-movable mold panel, 203-movable mold foot, 204-movable mold template, 2041-movable mold cavity, 205-guide sleeve, 206-throw pin return needle;

[0051] 30-fixed mold core assembly, 301-fixed mold core body, 3011-fixed mold core cavity, 3012-boss, 3013-flow channel, 3014-through hole, 302-auxiliary molding fixed block;

[0052] 40-movable mold core assembly, 401-movable mold core body, 4011-movable mold core cavity, 4012-groove, 4013-embedded groove, 402-auxiliary molding movable block;

[0053] 50-fixed mold core fixing bolt;

[0054] 60-Moving mold fixing bolt. DETAILED DESCRIPTION

[0055] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0056] In order to enable those skilled in the art to better understand the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0057] Please refer to FIG. 1 , FIG. 2 and FIG. 3 , the injection mold frame 1 provided in the embodiment of the present application includes a fixed mold frame 10 , a movable mold frame 20 , a fixed mold core assembly 30 and a movable mold core assembly 40 .

[0058] Among them, the fixed mold frame 10 is installed on the injection side of the injection molding equipment, and the fixed mold frame 10 is provided with a fixed mold cavity 1031. The movable mold frame 20 is installed on the ejection side of the injection molding equipment, and the movable mold frame 20 is provided with a movable mold cavity 2041. The movable mold frame 20 can move relative to the fixed mold frame 10 to realize opening and closing of the mold. The fixed mold core assembly 30 is detachably embedded in the fixed mold cavity 1031, and the fixed mold core assembly 30 is provided with a fixed mold core cavity 3011. The movable mold core assembly 40 is detachably embedded in the movable mold cavity 2041, and the movable mold core assembly 40 is provided with a movable mold core cavity 4011. The movable mold core cavity 4011 is combined with the fixed mold core cavity 3011 to form products.

[0059] It can be seen that compared with the traditional method of developing a new set of molds when producing different products, the injection mold frame 1 provided in the embodiment of the present application has a fixed mold core assembly 30 and a movable mold core assembly 40 that can be quickly replaced on the fixed mold frame 10 and the movable mold frame 20, respectively. The fixed mold core assembly 30 and the movable mold core assembly 40 are arranged according to the production needs of different products.

[0060] With such arrangement, the above-mentioned injection mold frame 1 can adopt the same set of fixed mold frame 10 and movable mold frame 20, and can realize the rapid replacement of the fixed mold core assembly 30 and the movable mold core assembly 40 when another product needs to be produced. In this way, there is no need to redevelop the mold frame assembly, and only the fixed mold core assembly 30 and the movable mold core assembly 40 need to be processed, thereby reducing the mold development cost, shortening the mold processing cycle, and helping enterprises to improve production efficiency and reduce production costs.

[0061] Please refer to FIG. 4 , the fixed mold frame 10 includes a fixed mold heat insulation board 101 , a fixed mold panel 102 , a fixed mold template 103 and at least two guide pillars 104 .

[0062] Among them, the fixed mold heat insulation plate 101 is arranged on the side of the fixed mold panel 102 away from the fixed mold template 103, and the fixed mold heat insulation plate 101 is used to reduce the heat transfer between the fixed mold panel 102 and the injection molding equipment to control the temperature of the fixed mold frame 10; the fixed mold panel 102 is used to be fixed to the injection molding equipment during injection molding; the fixed mold template 103 is arranged on the fixed mold panel 102, the fixed mold cavity 1031 is arranged on the fixed mold template 103, and the fixed mold template 103 is used to install the fixed mold core assembly 30; at least two guide pillars 104 are arranged on the fixed mold template 103, and the guide pillars 104 are used to guide the movement of the movable mold frame 20 when opening and closing the mold.

[0063] Please refer to FIG. 5 , the movable mold frame 20 includes a movable mold heat insulation board 201 , a movable mold panel 202 , a movable mold foot 203 , a movable mold plate 204 and at least two guide sleeves 205 .

[0064] Among them, the movable mold heat insulation plate 201 is arranged on the side of the movable mold panel 202 away from the movable mold foot 203, and the movable mold heat insulation plate 201 is used to reduce the heat transfer between the movable mold panel 202 and the injection molding equipment to control the temperature of the movable mold frame 20; the movable mold panel 202 is used to be fixed to the injection molding equipment during injection molding; the movable mold foot 203 is arranged on the movable mold panel 202, and the movable mold foot 203 is used to support the movable mold template 204 to leave movement space for the ejection system 7 of the injection molding equipment; the movable mold template 204 is arranged on the movable mold foot 203, and the movable mold cavity 2041 is arranged on the movable mold template 204, and the movable mold template 204 is used to install the movable mold core assembly 40; at least two guide sleeves 205 are arranged on the movable mold template 204, and each guide sleeve 205 is used to cooperate with the corresponding guide column 104 to guide the movement of the movable mold frame 20 when opening and closing the mold.

[0065] Of course, according to actual needs, the number of guide pillars 104 and guide sleeves 205 are both four. The four guide pillars 104 are respectively arranged at the four corners of the fixed mold template 103, and the four guide sleeves 205 are respectively arranged at the four corners of the movable mold template 204. When the injection mold frame 1 opens and closes the mold, the four guide sleeves 205 can move respectively along the extension direction of the four guide pillars 104 to guide the movement of the movable mold frame 20, thereby ensuring the accuracy of the opening and closing movement of the injection mold frame 1.

[0066] In addition, the movable mold frame 20 further includes an ejector return pin 206. The number of the ejector return pins 206 is at least two, for example, four ejector return pins 206 are provided, and the four ejector return pins 206 are fixed on the movable mold panel 202 and extend out of the movable mold plate 204. Each ejector return pin 206 is used to be fitted with an ejector bottom plate 71 supporting the ejector and an ejector fixing plate 72 fixing the ejector, so as to assist the ejector, the ejector bottom plate 71 and the ejector fixing plate 72 in resetting.

[0067] Specifically, the ejection system 7 of the injection molding equipment includes an ejector pin, an ejector pin base plate 71 and an ejector pin fixing plate 72. The ejector pin base plate 71 is mounted on each ejector pin return pin 206, and the ejector pin base plate 71 is used to support each ejector pin; the ejector pin fixing plate 72 is mounted on each ejector pin return pin 206 and is arranged on the ejector base plate 71, and the ejector pin fixing plate 72 is used to fix each ejector pin.

[0068] In this way, after the injection molding material in the mold frame is cooled and solidified, the ejector pin, the ejector pin base plate 71 and the ejector pin fixing plate 72 of the ejection system 7 are moved relative to the ejector pin return pin 206 to eject the molded product. After ejection, the ejector pin, the ejector pin base plate 71 and the ejector pin fixing plate 72 are reset along the ejector pin return pin 206.

[0069] In some embodiments, in order to facilitate the limiting of the fixed mold core assembly 30, a fixed mold core limiting structure is provided in the fixed mold cavity 1031, and the fixed mold core limiting structure is used to limit the fixed mold core assembly 30 in the embedding direction of the fixed mold core assembly 30, so that the height difference between the fixed mold core assembly 30 and the fixed mold frame 10 does not exceed a first preset range.

[0070] In order to facilitate the limiting of the movable mold core assembly 40, a movable mold core limiting structure is provided in the movable mold cavity 2041, and the movable mold core limiting structure is used to limit the movable mold core assembly 40 in the embedding direction of the movable mold core assembly 40, so that the height difference between the movable mold core assembly 40 and the movable mold frame 20 does not exceed a second preset range.

[0071] It is understandable that the above-mentioned fixed mold core limiting structure and movable mold core limiting structure can be set as an annular boss or stepped surface integrally formed in the corresponding cavity. In this way, when the fixed mold core assembly 30 is embedded in the fixed mold cavity 1031, the fixed mold core limiting structure is used to limit the fixed mold core assembly 30 to ensure the position accuracy of the fixed mold core assembly 30 after installation. When the movable mold core assembly 40 is embedded in the movable mold cavity 2041, the movable mold core limiting structure is used to limit the movable mold core assembly 40 to ensure the position accuracy of the movable mold core assembly 40 after installation. Finally, the fixed mold core assembly 30 and the movable mold core assembly 40 can accurately form a mold cavity for molding products after the mold is closed.

[0072] It should be noted that, for products of different heights, the height difference between the fixed mold core assembly 30 and the fixed mold frame 10, and the height difference between the movable mold core assembly 40 and the movable mold frame 20 can be set differently.

[0073] The structures of the fixed mold core assembly 30 and the movable mold core assembly 40 are described in detail below.

[0074] Please refer to FIG. 6 , this part is an interchangeable structure, and this part can be replaced for different products. In this way, the dimensions of the interchangeable fixed mold core assembly 30 are kept consistent, so that fast and efficient switching production between different parts can be achieved. Specifically, the fixed mold core assembly 30 includes a fixed mold core body 301, and the fixed mold core body 301 is provided with a fixed mold core cavity 3011 and a boss 3012, and the boss 3012 is provided with a flow channel 3013 connected to the fixed mold core cavity 3011.

[0075] Please refer to FIG. 7 , this part is an interchangeable structure. By replacing this part for different products and keeping the outer dimensions of the interchangeable movable mold core assembly 40 consistent, fast and efficient switching production between different parts can be achieved. Specifically, the movable mold core assembly 40 includes a movable mold core body 401, and the movable mold core body 401 is provided with a movable mold core cavity 4011 and a groove 4012. After the movable mold core assembly 40 and the fixed mold core assembly 30 are molded together, the movable mold core cavity 4011 and the fixed mold core cavity 3011 jointly form a mold cavity for molding products, and the boss 3012 is embedded in the groove 4012, so that the flow channel 3013 is a closed flow channel 3013.

[0076] It can be seen that the high-temperature molten injection molding material can be injected into the mold cavity formed by the movable mold core cavity 4011 and the fixed mold core cavity 3011 through the runner 3013. The molten injection molding material is cooled and solidified in the mold cavity to be formed into the desired product. Finally, the product is ejected after the mold is opened.

[0077] In some embodiments, the injection mold frame 1 also includes an injection feeding unit 105, which is installed on the fixed mold frame 10. The injection feeding unit 105 includes a feed port and a feed pipe 1051 arranged in the fixed mold cavity 1031. The feed pipe 1051 is connected to the feed port. The boss 3012 also has a through hole 3014. The feed pipe 1051 is used to extend into the through hole 3014 to realize the delivery of injection molding raw materials to the flow channel 3013.

[0078] In order to facilitate feeding, the injection molding feeding unit 105 is connected to the barrel 5 of the injection molding machine, and the barrel 5 is connected to the feeding port provided on the fixed mold frame 10 . The barrel 5 is used to transport high-temperature molten injection molding raw materials to the injection molding feeding unit 105 .

[0079] In some embodiments, the fixed mold core assembly 30 also includes two auxiliary molding fixed blocks 302, which are fixed on the fixed mold core body 301 and respectively located on both sides of the fixed mold core cavity 3011, and the inner wall surfaces of the two auxiliary molding fixed blocks 302 are both first inclined surfaces; correspondingly, the movable mold core assembly 40 also includes two auxiliary molding movable blocks 402, which are slidably connected to the movable mold core body 401 and respectively located on both sides of the movable mold core cavity 4011, and the outer wall surfaces of the two auxiliary molding movable blocks 402 are both second inclined surfaces, and the two auxiliary molding movable blocks 402 are both connected to the auxiliary molding structure.

[0080] Of course, the auxiliary forming structure can be an auxiliary forming rod or an auxiliary forming block, which is used to form a hole or a groove structure on the side of the product.

[0081] Moreover, the movable mold core body 401 is also provided with two embedding grooves 4013, and the two embedding grooves 4013 are respectively located on the outside of the two auxiliary molding movable blocks 402. After the movable mold core assembly 40 and the fixed mold core assembly 30 are molded together, the two auxiliary molding fixed blocks 302 are respectively embedded in the two embedding grooves 4013, and the two first inclined surfaces respectively squeeze the two second inclined surfaces, so that the two auxiliary molding movable blocks 402 move in the direction of closing together, so that at least part of the auxiliary molding structure enters the mold cavity.

[0082] Of course, the auxiliary forming fixed block 302 may be a convex-shaped structure, and the auxiliary forming movable block 402 may be adapted to the convex-shaped auxiliary forming fixed block 302 .

[0083] In some embodiments, the fixed mold core assembly 30 and the movable mold core assembly 40 are respectively installed in the fixed mold frame 10 and the movable mold frame 20 by detachable connection.

[0084] Specifically, the injection mold frame 1 further includes a plurality of fixed mold core fixing bolts 50 and a plurality of movable mold core fixing bolts 60. Among them, the plurality of fixed mold core fixing bolts 50 are used to connect the fixed mold core assembly 30 and the fixed mold frame 10, so that the fixed mold core assembly 30 is fixed to the fixed mold cavity 1031; the plurality of movable mold core fixing bolts 60 are used to connect the movable mold core assembly 40 and the movable mold frame 20, so that the movable mold core assembly 40 is fixed to the movable mold cavity 2041.

[0085] Please refer to FIG8 , the fixed mold core fixing bolt 50 and the movable mold core fixing bolt 60 can be installed in reverse. Specifically, the fixed mold core fixing bolt 50 passes through the fixed mold frame 10 and is screwed to the fixed mold core assembly 30, so that the fixed mold core assembly 30 is fixedly installed on the fixed mold frame 10; the movable mold core fixing bolt 60 passes through the movable mold frame 20 and is screwed to the movable mold core assembly 40, so that the movable mold core assembly 40 is fixedly installed on the movable mold frame 20.

[0086] Please refer to FIG9 , the fixed mold core fixing bolt 50 and the movable mold core fixing bolt 60 can also be installed in the forward direction. Specifically, the fixed mold core fixing bolt 50 passes through the fixed mold core assembly 30 and is screwed to the fixed mold frame 10, so that the fixed mold core assembly 30 is fixedly installed on the fixed mold frame 10; the movable mold core fixing bolt 60 passes through the movable mold core assembly 40 and is screwed to the movable mold frame 20, so that the movable mold core assembly 40 is fixedly installed on the movable mold frame 20.

[0087] The above connection methods can be selected according to actual needs. When the module needs to be interchanged, just loosen the bolts, remove the mold core assembly, and replace it with the mold core assembly that needs to be produced.

[0088] Of course, for products of different heights, the heights of the fixed mold core assembly 30 and the movable mold core assembly 40 and the ejection strokes may be different, and the ejector pin return pin 206 may be replaced synchronously.

[0089] Please refer to Figure 10. During production, first select the appropriate fixed mold core assembly 30 and movable mold core assembly 40 according to the desired product, then install the fixed mold core assembly 30 on the fixed mold frame 10 to form a complete fixed mold part, install the movable mold core assembly 40 on the movable mold frame 20 to form a complete movable mold part, and then combine and assemble the fixed mold part and the movable mold part to form a complete mold.

[0090] In summary, the injection mold frame 1 provided in the embodiment of the present application is an injection mold frame 1 that can replace mold core components to produce different products. It has the following advantages in the process of new product development and small-batch production: the production process can produce multiple different parts by quickly exchanging mold core components. At the same time, a set of mold frames is shared, which can reduce the mold investment cost. The injection mold frame 1 set up in this way does not need to redevelop the mold frame component, but only needs to process the fixed mold core component 30 and the movable mold core component 40, which reduces the mold development cost and shortens the mold processing cycle, which is beneficial for enterprises to improve production efficiency and reduce production costs.

[0091] Please refer to FIG. 11 , which shows an injection molding device provided in the present application, including the injection molding mold frame 1 described in the above specific embodiment.

[0092] In addition, the injection molding device also includes a hydraulic machine 2, a screw 3, a hopper 4, a barrel 5, a heater 6 and an ejection system 7.

[0093] The specific injection molding process can be:

[0094] 1) Install the injection mold frame 1 on the injection molding machine;

[0095] 2) Granular raw materials are sucked into the hopper 4;

[0096] 3) In the heated barrel 5, the raw materials are squeezed and ground by the screw 3, thereby mixing and melting;

[0097] 4) High-temperature molten plastic is injected into the mold cavity under high pressure;

[0098] 5) The molten plastic cools and solidifies in the mold cavity;

[0099] 6) The molded product is ejected by the ejection system 7, and then the next molding cycle begins.

[0100] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0101] The above is a detailed introduction to the injection mold frame and injection molding equipment provided by the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the scheme and its core idea of ​​the present application. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the present application.

Claims

1. An injection mold frame, characterized in that: include: A fixed mold frame is used to be installed on the injection side of the injection molding equipment, and the fixed mold frame is provided with a fixed mold cavity; A movable mold frame is used to be installed on the ejection side of the injection molding equipment, the movable mold frame is provided with a movable mold cavity, and the movable mold frame can move relative to the fixed mold frame to realize mold opening and closing; A fixed mold core assembly is detachably embedded in the fixed mold cavity, and the fixed mold core assembly is provided with a fixed mold core cavity; The movable mold core assembly is detachably embedded in the movable mold cavity. The movable mold core assembly is provided with a movable mold core cavity. The movable mold core cavity is combined with the fixed mold core cavity to form a product.

2. The injection mold base according to claim 1, characterized in that: The injection mold frame also includes: A plurality of fixed mold core fixing bolts, wherein the fixed mold core fixing bolts are used to connect the fixed mold core assembly and the fixed mold frame so that the fixed mold core assembly is fixed to the fixed mold cavity; A plurality of movable mold core fixing bolts are used to connect the movable mold core assembly and the movable mold frame so that the movable mold core assembly is fixed to the movable mold cavity.

3. The injection mold base according to claim 1, characterized in that: The fixed mold core assembly comprises a fixed mold core body, the fixed mold core body is provided with the fixed mold core cavity and a boss, and the boss is provided with a flow channel communicating with the fixed mold core cavity; The movable mold core assembly includes a movable mold core body, and the movable mold core body is provided with the movable mold core cavity and the groove. After the movable mold core assembly and the fixed mold core assembly are molded together, the movable mold core cavity and the fixed mold core cavity jointly form a mold cavity for molding a product, and the boss is embedded in the groove, so that the flow channel is a closed flow channel.

4. The injection mold base according to claim 3, characterized in that: The injection mold frame also includes an injection feeding unit, which is installed on the fixed mold frame. The injection feeding unit includes a feeding pipe arranged in the fixed mold cavity. The boss also has a through hole, and the feeding pipe is used to extend into the through hole to realize the delivery of injection raw materials to the runner.

5. The injection mold base according to claim 3, characterized in that: The fixed mold core assembly further includes two auxiliary molding fixed blocks, which are fixed on the fixed mold core body and are respectively located on both sides of the fixed mold core cavity, and the inner wall surfaces of the two auxiliary molding fixed blocks are both first inclined surfaces; The movable mold core assembly also includes two auxiliary molding movable blocks, which are slidably connected to the movable mold core body and are respectively located on both sides of the movable mold core cavity, and the outer wall surfaces of the two auxiliary molding movable blocks are both second inclined surfaces, and the two auxiliary molding movable blocks are both connected to the auxiliary molding structure; The movable mold core body is also provided with two embedding grooves, and the two embedding grooves are respectively located on the outsides of the two auxiliary molding movable blocks. After the movable mold core assembly and the fixed mold core assembly are molded together, the two auxiliary molding fixed blocks are respectively embedded in the two embedding grooves, and the two first inclined surfaces respectively squeeze the two second inclined surfaces, so that the two auxiliary molding movable blocks move in the direction of closing together, so that at least part of the auxiliary molding structure enters the mold cavity.

6. The injection mold frame according to claim 1, characterized in that: The fixed mold frame comprises: Fixed mold panel, used to fix to the injection molding equipment during injection molding; A fixed mold template, arranged on the fixed mold panel, for mounting the fixed mold core assembly; At least two guide pins are provided on the fixed mold platen for guiding the movement of the movable mold frame when the mold is opened and closed; The fixed mold heat insulation plate is arranged on the side of the fixed mold panel away from the fixed mold template, and is used to reduce the heat transfer between the fixed mold panel and the injection molding equipment to control the temperature of the fixed mold frame.

7. The injection mold base according to claim 6, characterized in that: The movable mold frame comprises: The movable mold panel is used to be fixed to the injection molding equipment during injection molding; A movable mold foot is arranged on the movable mold panel; A movable mold template, arranged on the movable mold foot, for mounting the movable mold core assembly; At least two guide sleeves are provided on the movable mold plate, each of the guide sleeves is used to cooperate with the corresponding guide post to guide the movement of the movable mold frame when opening and closing the mold; The movable mold heat insulation plate is arranged on the side of the movable mold panel away from the movable mold foot, and is used to reduce the heat transfer between the movable mold panel and the injection molding equipment to control the temperature of the movable mold frame.

8. The injection mold base according to claim 7, characterized in that: The movable mold frame also includes at least two ejector pin return pins, each of which is fixed on the movable mold panel and extends out of the movable mold template. Each of the ejector pin return pins is used to be set on an ejector base plate supporting the ejector and an ejector fixing plate fixing the ejector to assist in resetting the ejector, the ejector base plate and the ejector fixing plate.

9. The injection mold base according to any one of claims 1 to 8, characterized in that: A fixed mold core limiting structure is provided in the fixed mold cavity, and the fixed mold core limiting structure is used to limit the fixed mold core assembly in the embedding direction of the fixed mold core assembly, so that the height difference between the fixed mold core assembly and the fixed mold frame does not exceed a first preset range; a movable mold core limiting structure is provided in the movable mold cavity, and the movable mold core limiting structure is used to limit the movable mold core assembly in the embedding direction of the movable mold core assembly, so that the height difference between the movable mold core assembly and the movable mold frame does not exceed a second preset range.

10. An injection molding device, characterized in that: It comprises the injection mold frame as described in any one of claims 1-9.

Images