Injection mold base with inclined top

Abstract

The present invention discloses an injection mold frame with inclined top matching, including a top mold frame and a bottom mold frame, a top mold base is provided on the top mold frame, a bottom mold base is provided on the bottom mold frame, a top mold core is provided on the top mold base, a bottom mold core is provided on the bottom mold base, two bottom mold core injection stations are provided on the bottom mold core, and the bottom mold core injection station at least includes an inclined top moving module, an inclined top cavity groove is provided on the bottom mold core injection station, an inclined top matching cavity groove is provided on the bottom mold base, the inclined top cavity groove and the inclined top matching cavity groove are spliced ​​to form a guide slide groove, a top mold core injection station is provided on the top mold core, an avoidance guide groove is provided on the top mold core injection station, and an inclined top driving block is provided on the top mold base. The present invention adopts a guide groove design for splicing the mold base and the mold core, which reduces the volume of the mold core, is easy to realize the guiding drive of the moving module, reduces the cost of the injection mold frame, and meets the mold core replacement requirements of products of different specifications. It is equipped with a pneumatic pin telescopic structure, which can meet the demoulding matching requirements of specific tubular buckle ends, and the design is ingenious.

Description

Technical Field

[0001] The invention relates to an injection mold frame with an inclined top fit, belonging to the technical field of injection mold frames. Background Art

[0002] Injection molds are tools for producing plastic products; they are also tools that give plastic products a complete structure and precise dimensions. Injection molding is a processing method used in mass production of certain parts with complex shapes. Specifically, it refers to the process of injecting heated and melted plastic into the mold cavity under high pressure by an injection molding machine, and then cooling and solidifying to obtain a molded product.

[0003] Generally, injection molds use a conformal structure that follows the workpiece, so that a mold cavity is formed in the mold assembly state to meet the needs of injection molding. Currently, many workpieces have protruding structures such as buckles and pins, which make it difficult to demold the workpiece after injection molding. The traditional method is to design a moving module on the mold core, so that the moving module can be driven in the mold assembly state to avoid the molding position and achieve demolding. This method, on the one hand, results in a larger mold core and a very large mold frame; on the other hand, the displacement accuracy of the moving module is poor. Summary of the invention

[0004] The purpose of the present invention is to solve the above-mentioned deficiencies of the prior art. Aiming at the problem that the movable module on the traditional mold core requires more space and has poor displacement accuracy, an injection mold frame with inclined top is proposed.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is:

[0006] The injection mold frame with inclined top cooperation comprises a top mold frame and a bottom mold frame, wherein the top mold frame is provided with a top mold base, the bottom mold frame is provided with a bottom mold base, the top mold base is provided with a detachable top mold core, and the bottom mold base is provided with a detachable bottom mold core.

[0007] The bottom mold core is provided with two bottom mold core injection molding stations, and the bottom mold core injection molding stations at least include an inclined ejection module, and the linear displacement directions of the inclined ejection modules of the two bottom mold core injection molding stations are arranged in parallel and opposite directions.

[0008] The bottom mold core injection molding station is provided with an inclined top cavity groove, and the bottom mold base is provided with an inclined top matching cavity groove. The inclined top cavity groove and the inclined top matching cavity groove are spliced ​​to form a guide slide groove for linearly guiding the inclined top moving module.

[0009] The top mold core is provided with a top mold core injection molding station which is arranged one-to-one corresponding to the bottom mold core injection molding station, and the top mold core injection molding station is provided with an avoidance guide groove for avoiding the inclined ejection module, and the top mold seat is detachably provided with an inclined ejection driving block for driving the inclined ejection module.

[0010] Preferably, the bottom mold core injection molding station is provided with a linear moving module having an inclined angle with the linear displacement direction of the inclined ejector moving module, and the linear displacement directions of the linear moving modules of the two bottom mold core injection molding stations are parallel and oppositely arranged.

[0011] The bottom mold core injection molding station is provided with a linear cavity groove, and the bottom mold base is provided with a linear matching cavity groove. The linear cavity groove and the linear matching cavity groove are spliced ​​to form a linear slide groove for linearly guiding the linear moving module.

[0012] The top mold core injection molding station is provided with an avoidance groove for avoiding the linear moving module, and the top mold base is provided with a linear driving block for driving the linear moving module.

[0013] Preferably, the inclined top matching cavity groove is communicated with the linear matching cavity groove.

[0014] Preferably, the inclined ejection module is provided with a pin mold end with telescopic adjustable displacement, and the bottom mold base is provided with a pin mold pneumatic source for cooperating with the inclined ejection module to telescopically drive the pin mold end.

[0015] Preferably, the linear dynamic module is provided with a pin end with telescopic adjustment displacement, and the bottom mold base is provided with a pin pneumatic source for cooperating with the linear dynamic module to telescopically drive the pin end.

[0016] Preferably, the pin mold pneumatic source and the pin column pneumatic source are co-sourced.

[0017] The beneficial effects of the present invention are mainly reflected in:

[0018] 1. The mold base and mold core are connected by a guide groove design, which reduces the mold core volume, makes it easy to realize the guide drive of the dynamic module, reduces the cost of the injection mold frame, and meets the mold core replacement needs of products of different specifications.

[0019] 2. It has a pneumatic pin telescopic structure, which can meet the demoulding and matching requirements of specific tubular buckle ends, and the design is ingenious.

[0020] 3. It can meet the needs of multi-moving mold matching and cavity splicing, and is suitable for promotion and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the exploded structure of the injection mold frame with inclined top matching of the present invention.

[0022] Figure 2 It is a structural schematic diagram of the bottom mold base of the present invention.

[0023] Figure 3 It is a structural schematic diagram of the top mold base in the present invention.

[0024] Figure 4 It is a partial cross-sectional view of a preferred embodiment of the present invention.

[0025] Figure 5 It is a displacement diagram of the pin mold end and the pin column end in the present invention. DETAILED DESCRIPTION

[0026] The present invention provides an injection mold frame with an inclined top. The technical solution of the present invention is described in detail below in conjunction with the accompanying drawings to make it easier to understand and grasp.

[0027] Injection mold base with inclined top, such as Figures 1 to 4 As shown, it comprises an upper mold frame 1 and a lower mold frame 2, wherein the upper mold frame 1 is provided with an upper mold base 3, and the lower mold frame 2 is provided with a lower mold base 4, the upper mold base 3 is provided with a detachably loadable upper mold core 5, and the lower mold base 4 is provided with a detachably loadable lower mold core 6.

[0028] Among them, two bottom mold core injection molding stations 8 are arranged on the bottom mold core 6, and the bottom mold core injection molding station 8 includes at least an inclined ejection module. The linear displacement directions of the inclined ejection modules of the two bottom mold core injection molding stations 8 are arranged in parallel and opposite directions. Figure 2 shown.

[0029] The bottom mold core injection molding station 8 is provided with an inclined top cavity groove 81, and the bottom mold base 4 is provided with an inclined top matching cavity groove 82. The inclined top cavity groove and the inclined top matching cavity groove are spliced ​​to form a guide groove for linearly guiding the inclined top moving module.

[0030] The top mold core 5 is provided with a top mold core injection molding station 7 which is arranged one-to-one with the bottom mold core injection molding station. The top mold core injection molding station 7 is provided with an avoidance guide groove 71 for avoiding the inclined ejection module. The top mold base 3 is detachably provided with an inclined ejection driving block for driving the inclined ejection module.

[0031] Specifically, by providing an inclined top matching cavity groove 82 on the bottom mold base 4, the splicing of the guide slide groove can be achieved, thereby reducing the size of the bottom mold core and the volume of the mold frame. At the same time, an inclined top drive block is provided on the top mold base 3, and there is no need to provide it on the top mold core 5, thereby reducing the difficulty of mold core molding and the space requirements.

[0032] In addition, this inclined ejector module has a fixed inclined ejector angle and is suitable for products with similar inclined ejector requirements. It has many product specifications and can be replaced through the mold core design of products of different sizes and specifications, and the same injection mold frame can be used.

[0033] It should be noted that the injection mold frame is designed for center injection, that is, no matter what specifications the product has, it only needs the center injection connection. Both the top mold base and the bottom mold base have cooling channels, and only the mold core and the cooling channel need to be matched. The injection molding stations are symmetrically distributed in the center to meet the simultaneous injection molding needs of the two injection molding stations.

[0034] In a specific embodiment, the bottom mold core injection molding station 2 is provided with a linear moving module having an inclined angle with the linear displacement direction of the inclined top moving module, and the linear displacement directions of the linear moving modules of the two bottom mold core injection molding stations are parallel and oppositely arranged.

[0035] A linear cavity groove 83 is provided on the bottom mold core injection molding station 8, and a linear matching cavity groove 84 is provided on the bottom mold base 4. The linear cavity grooves and the linear matching cavity grooves are spliced ​​to form a linear slide groove for linearly guiding the linear moving module.

[0036] The top mold core injection molding station 7 is provided with an avoidance slot 72 for avoiding the linear moving module, and the top mold base 3 is provided with a linear driving block for driving the linear moving module.

[0037] That is, it is similar to the driving structure of the inclined ejector module, and is also used to reduce the volume of the mold core and has universality. That is, such products require two movable molds to press in different directions and reset and disengage after molding to meet the demolding requirements of specific products. At the same time, there is no need to set structures such as drive blocks on the mold core.

[0038] In a specific embodiment, the inclined top matching cavity groove 82 is connected with the linear matching cavity groove 84, that is, the guide channel connection matching requirements of a specific product are met, and the molding difficulty of the bottom mold base 4 is reduced.

[0039] In a specific embodiment, the inclined ejection module is provided with a pin mold end with telescopic adjustment displacement, and the bottom mold seat is provided with a pin mold pneumatic source 10 for cooperating with the inclined ejection module to telescopically drive the pin mold end. The linear motion module is provided with a pin column end with telescopic adjustment displacement, and the bottom mold seat is provided with a pin column pneumatic source for cooperating with the linear motion module to telescopically drive the pin column end. The pin mold pneumatic source is co-sourced with the pin column pneumatic source.

[0040] Specific implementation process and principle description:

[0041] The side wall of the workpiece generally has structures such as buckles, pin holes, and pin columns, which can be obtained by setting corresponding forming parts on the inclined ejector module and the linear ejector module. However, the side walls of some specific workpieces have tubular buckle ends. After such tubular buckle ends are formed, it is very difficult to demold the inclined ejector module and the linear ejector module, which can easily damage the formed tubular buckle ends.

[0042] Therefore, a retractable pin die end and pin column end design is adopted, such as Figure 5 As shown, the pin mold end and the pin column end are 20. After the tubular buckle end of the workpiece is injection molded, the pin mold end and the pin column end 20 are first retracted through the pin mold pneumatic source 10, and then the mold is separated. At this time, the shaft empty channel margin is provided to meet the separation requirements of the moving module and the molded tubular buckle end.

[0043] It should be noted that the bottom mold base 3 is provided with a matching air pipe, and the bottom of the moving module is provided with a matching end, and a flexible matching flange is provided between the two. After the moving module slides and moves into place, the two flexible matching flanges are sealed and matched. The matching flange is a high-temperature resistant silicone ring and is a replaceable structure.

[0044] From the above description, it can be found that the present invention has an injection mold frame with inclined top, adopts a mold base and mold core splicing guide groove design, reduces the mold core volume, is easy to realize the guide drive of the movable module, reduces the cost of the injection mold frame, and meets the mold core replacement needs of products of different specifications. It has a pneumatic pin telescopic structure, which can meet the demoulding and matching requirements of a specific tubular buckle end, and the design is ingenious. It meets the requirements of multi-movable mold matching and splicing cavities, and is suitable for promotion and application.

[0045] The above fully describes the technical solution of the present invention. It should be noted that the specific implementation of the present invention is not limited to the above description. All technical solutions formed by ordinary technicians in the field using equivalent or equivalent transformations in structure, method or function based on the spirit of the present invention fall within the protection scope of the present invention.

Claims

1. An injection mold frame with inclined top matching, comprising an upper mold frame and a lower mold frame, wherein the upper mold frame is provided with an upper mold base, the lower mold frame is provided with a lower mold base, the upper mold base is provided with a detachable upper mold core, and the lower mold base is provided with a detachable lower mold core, characterized in that: The bottom mold core is provided with two bottom mold core injection molding stations, and the bottom mold core injection molding stations at least include an inclined ejection module, and the linear displacement directions of the inclined ejection modules of the two bottom mold core injection molding stations are arranged in parallel and opposite directions. The bottom mold core injection molding station is provided with an inclined top cavity groove, and the bottom mold base is provided with an inclined top matching cavity groove. The inclined top cavity groove and the inclined top matching cavity groove are spliced ​​to form a guide slide groove for linearly guiding the inclined top moving module. The top mold core is provided with a top mold core injection molding station arranged one-to-one with the bottom mold core injection molding station, the top mold core injection molding station is provided with an avoidance guide groove for avoiding the inclined ejection moving module, and the top mold seat is detachably provided with an inclined ejection driving block for driving the inclined ejection moving module; The bottom mold core injection molding station is provided with a linear moving module having an inclined angle with the linear displacement direction of the inclined ejector moving module, and the linear displacement directions of the linear moving modules of the two bottom mold core injection molding stations are parallel and oppositely arranged. The bottom mold core injection molding station is provided with a linear cavity groove, and the bottom mold base is provided with a linear matching cavity groove. The linear cavity groove and the linear matching cavity groove are spliced ​​to form a linear slide groove for linearly guiding the linear moving module. The top mold core injection molding station is provided with an avoidance groove for avoiding the linear moving module, and the top mold base is provided with a linear driving block for driving the linear moving module; The inclined top matching cavity groove is connected with the linear matching cavity groove; The inclined ejection module is provided with a pin mold end with telescopic adjustment displacement, and the bottom mold base is provided with a pin mold pneumatic source for cooperating with the inclined ejection module to telescopically drive the pin mold end; The linear dynamic module is provided with a pin end with telescopic adjustment displacement, and the bottom mold base is provided with a pin pneumatic source for cooperating with the linear dynamic module to telescopically drive the pin end; The pin mold pneumatic source and the pin column pneumatic source are co-sourced.

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