Double-color extrusion die

Abstract

The utility model discloses a bicolor extrusion die, including injection subassembly, limit subassembly and support subassembly, injection subassembly and limit subassembly both are installed in the support subassembly, the injection subassembly includes sprue gate, splitter plate and drainage tube, the sprue gate is installed in the top of support subassembly; through the design of the inclined guide column, the space required by inclined ejection can be reduced while core pulling is completed, the whole structure is more compact, compared with the prior art, the service life of the whole mechanism is greatly prolonged, through the design of the ejector pin, the mold can be conveniently ejected out, friction between the mold and the movable mold plate is reduced, the surface of the mold is protected to the maximum degree, and the service life of the mold is prolonged. Through the design of the guide columns and the guide sleeves, a good buffering effect is achieved between the female die and the male die in the die opening and closing process of the die, the direct collision force is reduced, the female die and the male die are well protected, and the service life of equipment is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of mold technology development, in particular to a double-color extrusion mold. Background Art

[0002] Two-color injection molding is to inject two plastic materials on the same injection molding machine, and the injection molding is divided into two times, but the product is only ejected once. At present, in the field of molds, two-color feeding parts have been widely used in daily necessities, decorative parts, and automotive parts. Plastics of different colors and different components are combined in the same plastic part, making full use of the excellent properties of multiple plastics and improving the appearance and performance of the products.

[0003] The existing Chinese patent with reference announcement number CN213675260U discloses a slanted ejector core-pulling mechanism for a two-color mold, including a fixed mold and a movable mold. The movable mold is arranged at the bottom of the fixed mold, and the upper end of the slide groove is movably connected with a sliding block, and the upper end of the sliding block is fixedly connected with a slanted ejector. The core pulling can be completed by the slanted ejector of the slide groove while reducing the space required for the slanted ejector, making the whole structure more compact. At the same time, cylindrical bases are fixedly arranged at the upper end of the fixed base and at the position between the slide groove and the connecting hole, and an ejector pin is fixedly connected to the upper end of the cylindrical base. The design of the ejector pin facilitates the ejection of the mold, reduces the friction between the mold and the movable mold plate, and protects the mold to the greatest extent. The surface of the movable hole is connected with a pull rod, and a spring is welded at the bottom end of the pull rod, which plays a good buffering role between the fixed mold base and the fixed mold plate in the process of mold opening and mold closing, and protects the fixed mold base and the fixed mold plate very well, and prolongs the service life of the equipment. Although the above-mentioned utility model patent can play a good buffering role between the fixed mold base and the fixed mold plate in the process of mold opening and mold closing, reduce the force of direct collision, protect the fixed mold base and the fixed mold plate very well, and prolong the service life of the equipment, it cannot produce diverse and complex two-color injection molds. Therefore, in order to solve this problem, the inventor proposes a two-color extrusion mold. Utility Model Content

[0004] In view of the shortcomings existing in the above-mentioned technology, the utility model provides a double-color extrusion die.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a two-color extrusion mold, including an injection component, a limit component and a support component, the injection component and the limit component are both installed inside the support component, the injection component includes a pouring port, a diverter plate and a drainage tube, the pouring port is installed on the top of the support component, the diverter plate is installed inside the support component, the drainage tube is installed at one end of the pouring port, the output ends of the drainage tube are respectively installed inside the support component and the diverter plate, and the drainage tube is connected to the pouring port.

[0006] As a further explanation, the injection assembly includes a diverter pipe, a punch and a die, the diverter pipe is respectively installed inside the diverter plate and the die, the die is installed on the lower surface of the diverter plate, the punch is installed inside the limit assembly, and the die is connected to the punch.

[0007] As a further explanation, the limit assembly includes an inclined guide column, a support plate, a limit plate and a limit block, the support plate is located at one end of the punch, the inclined guide column is installed inside the support plate, the support plate is connected to the inclined guide column, the limit plate is installed on the top of the support assembly, and the limit block is installed at one end of the support assembly.

[0008] As a further explanation, the support assembly includes a lower mold base, an upper mold base and a fixed plate which are arranged in sequence from top to bottom, the lower mold base is installed at one end of the support assembly, the upper mold base is installed on the upper surface of the fixed plate, the pouring gate is located on the upper surface of the upper mold base and passes through one end of the upper mold base, the fixed plate is installed on the upper surface of the diverter plate, the diverter plate is located on the lower surface of the fixed plate, the fixed plate is connected to the diverter plate, and the output ends of the drainage tube are respectively located inside the upper mold base and the fixed plate.

[0009] As a further explanation, the support assembly includes a fixed block, a guide sleeve and a guide column, the fixed block is installed on the upper surface of the lower mold base, the lower mold base is located at the bottom of the fixed block, the limit plate is located on the upper surface of the fixed block, the limit blocks are installed on the fixed block and one end of the fixed plate, the guide sleeve is installed inside the limit plate, the guide column is installed inside the guide sleeve, and the guide sleeve is connected to the guide column.

[0010] As a further explanation, an ejector plate is provided on the upper surface of the limiting plate, an ejector pin is provided on the top of the ejector plate, the ejector plate is installed on the upper surface of the limiting plate, the ejector pin is installed inside the ejector plate, the ejector pin is connected to the ejector plate, and the ejector plate is located between the ejector pin and the ejector plate.

[0011] As a further explanation, the fixing plate is located between the upper die base and the diverter plate, and the diverter pipe is located between the diverter plate and the concave die.

[0012] In summary, the utility model has the following beneficial effects: the utility model is a two-color extrusion mold, which can complete the core pulling while reducing the space required for the inclined ejector through the design of the inclined guide column, making the entire structure tighter. Compared with the past, the service life of the entire mechanism is greatly improved. The design of the ejector pin facilitates the ejection of the mold, reduces the friction between the mold and the moving mold plate, and protects the surface of the mold to the greatest extent. The design of the guide column and the guide sleeve plays a good buffering role between the die and the punch during the process of mold opening and closing, reduces the force of direct collision, protects the die and the punch well, and extends the life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a three-dimensional structural schematic diagram of a two-color extrusion die of the utility model;

[0014] Figure 2 This is a structural schematic diagram of a two-color extrusion die of the utility model;

[0015] Figure 3 This is a schematic diagram of the internal structure of a two-color extrusion die of the utility model;

[0016] Figure 4 This is an exploded view of a two-color extrusion die of the utility model.

[0017] Numbers in the figure: 1- ejector plate, 2- ejector pin, 10- injection assembly, 101- pouring gate, 102- diverter plate, 103- drainage tube, 104- diverter pipe, 105- punch, 106- die, 20- limit assembly, 201- inclined guide column, 202- support plate, 203- limit plate, 204- limit block, 30- support assembly, 301- lower die base, 302- upper die base, 303- fixed plate, 304- fixed block, 305- guide sleeve, 306- guide column. DETAILED DESCRIPTION

[0018] 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.

[0019] like Figure 1-4As shown, a two-color extrusion mold includes an injection component 10, a stopper component 20 and a support component 30, wherein the injection component 10 and the stopper component 20 are both installed inside the support component 30, and the injection component 10 includes a pouring port 101, a diverter plate 102 and a drainage pipe 103, wherein the pouring port 101 is installed on the top of the support component 30, the diverter plate 102 is installed inside the support component 30, the drainage pipe 103 is installed at one end of the pouring port 101, and the output ends of the drainage pipe 103 are respectively installed inside the support component 30 and the diverter plate 102, and the drainage pipe 103 is connected to the pouring port 101;

[0020] Specifically, after the male mold 105 and the female mold 106 are molded together, the first injection molding of the female mold 106 will be completed through the pouring port 101, and then after the first product is cooled, the female mold 106 will be injected for the second time. After the two injection moldings are completed, the inclined guide column 306201 will open the female mold 106, and at the same time, the ejector plate will drive the ejector pin 2 to eject the product after the male mold 105 is injected, so that the operator can take out the two-color mold after the injection molding is completed, thereby improving the practicality. Through the design of the drainage tube 103, it is convenient to guide the plastic injected from the injection port into the inside of the diverter plate 102, and the diverter plate 102 then transfers the injected plastic to the inside of the diverter tube, completing the first injection of the female mold 106 and the male mold 105, thereby improving the practicality.

[0021] The injection assembly 10 includes a flow distribution pipeline 104, a male mold 105 and a female mold 106. The flow distribution pipeline 104 is installed inside the flow distribution plate 102 and the female mold 106 respectively. The female mold 106 is installed on the lower surface of the flow distribution plate 102. The male mold 105 is installed inside the stop assembly 20, and the female mold 106 is connected to the male mold 105.

[0022] Specifically, through the design of the diversion pipe 104, it is convenient to transfer the plastic inside the diversion plate 102 to the inside of the female mold 106 and the male mold 105 respectively, avoiding overflow. Through the design of the female mold 106 and the male mold 105, it is convenient to produce diverse and complex two-color injection molds, thereby improving practicality.

[0023] The limiting assembly 20 includes an inclined guide column 306201, a support plate 202, a limiting plate 203 and a limiting block 204, wherein the support plate 202 is located at one end of the punch 105, the inclined guide column 306201 is installed inside the support plate 202, the support plate 202 is connected to the inclined guide column 306201, the limiting plate 203 is installed on the top of the support assembly 30, and the limiting block 204 is installed at one end of the support assembly 30;

[0024] Specifically, through the design of the inclined guide column 306201, the core pulling can be completed while reducing the space required for the inclined ejector, making the entire structure more compact. Compared with the past, the service life of the entire mechanism is greatly improved. Through the design of the support plate 202, it is convenient to further support the punch 105 and the inclined guide column 306201, and the stability is improved. Through the design of the limit plate 203, it is convenient to further limit the ejection plate 1 to avoid displacement of the ejection plate 1 when it moves, thereby improving the stability of the ejection plate 1. Through the design of the limit block 204, when the upper mold base 302 and the lower mold base 301 need to open the mold, in order to avoid exceeding the mold opening range, the upper mold base 302 and the lower mold base 301 can be further limited by the limit block 204.

[0025] The support assembly 30 comprises a lower die base 301, an upper die base 302 and a fixed plate 303 which are sequentially arranged from top to bottom, the lower die base 301 is mounted at one end of the support assembly 30, the upper die base 302 is mounted on the upper surface of the fixed plate 303, the pouring port 101 is located on the upper surface of the upper die base 302 and penetrates one end of the upper die base 302, the fixed plate 303 is mounted on the upper surface of the manifold 102, the manifold 102 is located on the lower surface of the fixed plate 303, the fixed plate 303 is connected to the manifold 102, and the output ends of the drainage pipe 103 are respectively located inside the upper die base 302 and the fixed plate 303;

[0026] Specifically, when the mold is to be injected, the upper mold base 302 will be molded together with the lower mold base 301. After the mold is molded together, plastic can be injected into the upper mold base 302. At the same time, the fixing plate 303 will further fix the upper mold base 302 to avoid displacement during the mold closing.

[0027] The support assembly 30 includes a fixed block 304, a guide sleeve 305 and a guide column 306. The fixed block 304 is installed on the upper surface of the lower die base 301. The lower die base 301 is located at the bottom of the fixed block 304. The limit plate 203 is located on the upper surface of the fixed block 304. The limit block 204 is installed on the fixed block 304 and one end of the fixed plate 303. The guide sleeve 305 is installed inside the limit plate 203. The guide column 306 is installed inside the guide sleeve 305. The guide sleeve 305 is connected to the guide column 306.

[0028] Specifically, through the design of the guide pin 306 and the guide sleeve 305, a good buffering effect is played between the die 106 and the punch 105 during the mold opening and closing process, reducing the force of direct collision, protecting the die 106 and the punch 105 well, and extending the life of the equipment.

[0029] An ejector plate 1 is disposed on the upper surface of the limiting plate 203, an ejector pin 2 is disposed on the top of the ejector plate 1, the ejector plate 1 is mounted on the upper surface of the limiting plate 203, the ejector pin 2 is mounted inside the ejector plate 1, the ejector pin 2 is connected to the ejector plate 1, and the ejector plate 1 is located between the ejector pin 2 and the ejector plate 1;

[0030] Specifically, after the injection molding of the punch 105 and the die 106 is completed, the ejector plate 1 drives the ejector pin 2 to eject the product after injection molding on the punch 105, and then the operator takes out the product after ejection, thereby improving practicality.

[0031] The fixed plate 303 is located between the upper die base 302 and the diverter plate 102 , and the diverter pipe 104 is located between the diverter plate 102 and the concave die 106 .

[0032] 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 essential features of the present invention. Therefore, from any 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. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0033] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A two-color extrusion die, characterized in that: It comprises an injection assembly, a stop assembly and a support assembly, wherein the injection assembly and the stop assembly are both installed inside the support assembly, the injection assembly comprises a pouring port, a diverter plate and a drainage pipe, the pouring port is installed on the top of the support assembly, the diverter plate is installed inside the support assembly, the drainage pipe is installed at one end of the pouring port, the output ends of the drainage pipe are respectively installed inside the support assembly and the diverter plate, and the drainage pipe is connected to the pouring port; The injection assembly includes a flow distribution pipeline, a male mold and a female mold, wherein the flow distribution pipeline is installed inside the flow distribution plate and the female mold respectively, the female mold is installed on the lower surface of the flow distribution plate, the male mold is installed inside the stopper assembly, and the female mold is connected to the male mold; The limiting assembly includes an inclined guide column, a support plate, a limiting plate and a limiting block. The support plate is located at one end of the punch, the inclined guide column is installed inside the support plate, the support plate is connected to the inclined guide column, the limiting plate is installed on the top of the supporting assembly, and the limiting block is installed at one end of the supporting assembly.

2. A two-color extrusion die according to claim 1, characterized in that: The support assembly includes a lower mold base, an upper mold base and a fixed plate which are arranged in sequence from top to bottom, the lower mold base is installed at one end of the support assembly, the upper mold base is installed on the upper surface of the fixed plate, the pouring port is located on the upper surface of the upper mold base and passes through one end of the upper mold base, the fixed plate is installed on the upper surface of the diverter plate, the diverter plate is located on the lower surface of the fixed plate, the fixed plate is connected to the diverter plate, and the output ends of the drainage tube are respectively located inside the upper mold base and the fixed plate.

3. A two-color extrusion die according to claim 2, characterized in that: The supporting assembly includes a fixed block, a guide sleeve and a guide column, the fixed block is mounted on the upper surface of the lower die base, the lower die base is located at the bottom of the fixed block, the limit plate is located on the upper surface of the fixed block, the limit blocks are mounted on the fixed block and one end of the fixed plate, the guide sleeve is mounted inside the limit plate, the guide column is mounted inside the guide sleeve, and the guide sleeve is connected to the guide column.

4. A two-color extrusion die according to claim 3, characterized in that: An ejector plate is arranged on the upper surface of the limiting plate, an ejector pin is arranged on the top of the ejector plate, the ejector plate is mounted on the upper surface of the limiting plate, the ejector pin is mounted inside the ejector plate, the ejector pin is connected to the ejector plate, and the ejector plate is located between the ejector pin and the ejector plate.

5. A two-color extrusion die according to any one of claims 2 to 4, characterized in that: The fixed plate is located between the upper die seat and the diverter plate, and the diverter pipe is located between the diverter plate and the concave die.

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