Precise mold for complex automotive upholstery

Abstract

A precise mold for complex automotive upholstery belongs to the technical field of molds and comprises an upper compound plate, a feeding mechanism, a mold mechanism, an ejection mechanism, a baffle and a bottom plate. The feeding mechanism comprises a feeding hole, a hot runner and a glue inlet; the mold mechanism comprises an upper mold, an upper mold core and a lower mold core; the upper die core is embedded in the lower concave part of the upper die, and the lower die core is arranged below the upper die and the upper die core; the ejection mechanism comprises an ejection rod and an ejection rod fixing plate; the ejector rods comprise two ejector pins, six straight ejector rods and eight inclined ejector rods; one ejection oil cylinder is fixedly arranged between the two straight ejection rods A, and the other ejection oil cylinder is fixedly arranged between the two straight ejection rods C; and the ejection oil cylinder integrally ejects out a complex automotive interior trim part product through the ejection mechanism. The utility model has the beneficial effect of meeting the high-precision requirement of complex automotive upholstery.

Description

Technical Field

[0001] The utility model is a precision mold for a complex automobile interior decoration part, in particular to a precision mold for a complex automobile interior decoration part, belonging to the technical field of molds. Background Art

[0002] The automotive interior system is an important part of the car body. It must not only meet the complex functional requirements of the car, but also meet people's increasingly high aesthetic concepts, so it places very high demands on product precision.

[0003] The publication number is CN 214111325 U, the patent number is CN2020222597237, and the invention name is a flip-chip injection mold with a secondary ejection mechanism: it includes an upper mold plate, a lower mold plate and a hot runner system, the upper mold plate is provided with an upper mold core, the lower mold plate is provided with a lower mold core, the secondary ejection mechanism is located between the lower mold core and the lower mold plate, the secondary ejection mechanism includes several layers of ejector plates and several inclined ejectors, straight ejectors and ejectors respectively abutting against the ejector plates of any one layer thereof, after the ejector, inclined ejector and straight ejector are ejected synchronously for the first time, the ejector is ejected separately during the second rise to facilitate the smooth separation of the product from the mold cavity.

[0004] The technical solution of the above patent can only meet the technical requirements of ordinary injection molded parts, and cannot meet the high-precision requirements of complex automotive interior parts. Only by designing more advanced precision molds for complex automotive interior parts can we meet the needs of the rapidly developing automotive industry. Utility Model Content

[0005] The purpose of the utility model is to provide a precision mold for complex automobile interior parts, which can meet the high-precision requirements of complex automobile interior parts, in view of the defect that the existing technology of the design of the above-mentioned complex automobile interior parts molds cannot meet the high-precision requirements of the complex automobile interior parts.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a complex automobile interior decoration precision mold, including an upper composite plate, a feeding mechanism, a mold mechanism, an ejection mechanism, a baffle and a bottom plate arranged in sequence from top to bottom;

[0007] The feed mechanism includes a feed port, a hot runner and a glue inlet, and the mold mechanism includes an upper mold, an upper mold core and a lower mold core; the upper mold core is embedded in the lower concave of the upper mold, and cooling water channels are arranged in the upper mold core and the lower mold core. The lower mold core is arranged below the upper mold and the upper mold core, and a cavity is formed between the upper mold, the upper mold core and the lower mold core;

[0008] The ejection mechanism comprises an ejector rod and an ejector rod fixing plate, the lower end of the ejector rod is arranged on the ejector rod fixing plate, and the baffle plate is arranged below the ejector rod fixing plate;

[0009] The ejector rods include 2 ejector pins, 6 straight ejector rods and 8 inclined ejector rods, the 6 straight ejector rods include 2 straight ejector rods A, 2 straight ejector rods B and 2 straight ejector rods C, and the 8 inclined ejector rods include 2 inclined ejector rods A, 2 inclined ejector rods B and 2 inclined ejector rods C; wherein 1 ejector pin, 1 inclined ejector rod A, 1 straight ejector rod A, 1 inclined ejector rod B, 1 straight ejector rod B, 1 inclined ejector rod C, 1 inclined ejector rod C and 1 inclined ejector rod D are arranged in an elliptical arc above the rear side of the ejector rod fixing plate, and are arranged in sequence from left to right to form a rear group of ejector rods, and the other 1 ejector pin, 1 inclined ejector rod A, 1 straight ejector rod A, 1 inclined ejector rod B, 1 straight ejector rod B, 1 inclined ejector rod C, 1 inclined ejector rod C and 1 inclined ejector rod D are arranged in an elliptical arc above the front side of the ejector rod fixing plate, and are arranged in sequence from left to right to form a front group of ejector rods;

[0010] It also includes two ejection cylinders, one of which is fixedly arranged between two straight ejector rods A, and the other is fixedly arranged between two straight ejector rods C; the ejection cylinders eject the complex automotive interior product as a whole through the ejection mechanism.

[0011] A hot runner plate is arranged below the upper composite plate and around the hot runner, and the hot runner plate is fixedly connected to the upper composite plate by screws; the feed port is arranged in the middle of the upper composite plate, the glue feed port is arranged on the bottom surface of the upper mold core and connected to the cavity, the hot runner is arranged below the feed port, the upper end of the hot runner is connected to the lower end of the glue feed port, the middle part of the hot runner passes downward through the upper mold and the upper mold core, and the lower end of the hot runner is connected to the glue feed port.

[0012] The lower part of the lower mold core is provided with a cylinder fixing groove, the upper end of the ejection cylinder is fixed in the cylinder fixing groove, the lower end of the ejection cylinder is fixed on the baffle plate, and the ejection cylinder drives the ejector rod fixing plate to eject the product upward as a whole.

[0013] A support block is arranged on the ejector fixing plate, and the lower end of the support block is fixedly connected to the ejector fixing plate by screws. The upper end surface of the support block contacts the bottom of the lower mold core, thereby supporting the lower mold core.

[0014] The push rod fixing plate and the bottom plate are fixedly connected by screws; a straight push rod mounting hole is provided on the push rod fixing plate at a position corresponding to the lower side of the straight push rod, and the straight push rod is mounted on the push rod fixing plate by screws; the lower end of the ejector pin is fixedly connected to the push rod fixing plate by screws.

[0015] The molding cavity comprises an upper mold cavity and a lower mold cavity, wherein the upper mold cavity is below the upper mold core, and the lower mold cavity is above the lower mold core, and the shape and size of the molding cavity match the shape and size of the complex automobile interior decoration part.

[0016] An inclined ejector seat is provided at the corresponding position between the ejector fixing plate and the lower end of the inclined ejector rod, a slide groove is provided in the inclined ejector seat, a sliding bearing is provided at the lower end of the inclined ejector rod, the sliding bearing slides along the guide groove, and the inclined ejector rod is slidably connected with the slide groove through the sliding bearing; an inclined ejector guide block is provided in the middle of the inclined ejector rod.

[0017] The four corners of the lower mold core are provided with guide pillars, and the four corners of the upper mold core are provided with guide sleeves. The guide pillars are arranged in the guide sleeves to guide during demolding; balance blocks are arranged on the front and rear sides of the lower mold core to balance during demolding.

[0018] The upper end of the straight ejector rod is provided with a straight ejector head, and the upper end of the inclined ejector rod is provided with an inclined ejector head. The straight ejector head and the inclined ejector head extend upward to the cavity. When the complex automobile interior decoration part is injection molded, the upper end surface of the straight ejector head and the upper end surface of the inclined ejector head conflict with the bottom surface of the complex automobile interior decoration part.

[0019] The straight push rods A, B and C have the same structure, and the front push rods and the rear push rods are symmetrically arranged in the front-to-back direction on the push rod fixing plate.

[0020] Compared with the prior art, the beneficial effect of the utility model is that: on the basis of the existing complex automobile interior parts mold design, the product can be smoothly demolded from the mold cavity, while avoiding possible structural deformation or even damage to the complex automobile interior parts, thereby achieving the purpose of meeting the high-precision requirements of complex automobile interior parts and adapting to the needs of the rapid development of the automobile industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is: the front view of the present invention;

[0022] Figure 2 is: a top view of the present invention;

[0023] Figure 3 yes: Figure 2 AA section view;

[0024] Figure 4 yes: Figure 2 BB cross-sectional view;

[0025] Figure 5 Yes: Cross-sectional view of the base plate, ejector mechanism, lower mold and product combination after demoulding;

[0026] Figure 6 Yes: Top view of the lower mold cavity assembly;

[0027] Figure 7 Yes: Top view of the base plate + ejector fixing plate combination;

[0028] Figure 8 Yes: Bottom view of ejector fixing plate;

[0029] Fig. 9 yes: Figure 8 CC section view;

[0030] Fig.10 Yes: Three-dimensional diagram of the ejection mechanism.

[0031] Explanation of the accompanying drawings: upper composite plate 1, feeding mechanism 2, feeding port 201, hot runner 202, glue inlet 203, mold mechanism 3, upper mold 301, upper mold core 302, lower mold core 303, upper mold cavity 304, lower mold cavity 305, ejector mechanism 4, ejector fixing plate 401, baffle 5, bottom plate 6, cooling water channel 7, ejector pin 8, straight ejector A 9, straight ejector B 10, straight ejector C 11, inclined ejector A 12, inclined ejector B 13, inclined ejector C 14, inclined ejector D 15, hot runner plate 16, cylinder fixing groove 17, support block 18, inclined ejector seat 19, slide groove 20, sliding bearing 21, inclined ejector guide block 22, guide column 23, straight ejector head 24, inclined ejector head 25, product 26, balancing block 27, ejector cylinder 28. DETAILED DESCRIPTION

[0032] 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.

[0033] like Figures 1 to 10 As shown, a complex automotive interior precision mold, such as Figure 1 As shown, it includes an upper composite plate 1, a feeding mechanism 2, a mold mechanism 3, an ejection mechanism 4, a baffle 5 and a bottom plate 6 which are arranged in sequence from top to bottom;

[0034] like Figure 2 , Figure 3 and Figure 4 As shown, the feed mechanism 2 includes a feed port 201, a hot runner 202 and a glue inlet 203, and the mold mechanism 3 includes an upper mold 301, an upper mold core 302 and a lower mold core 303; the upper mold core 302 is embedded in the lower recess of the upper mold 301, and cooling water channels 7 are arranged in the upper mold core 302 and the lower mold core 303. The lower mold core 303 is arranged below the upper mold 301 and the upper mold core 302, and a cavity is formed between the upper mold 301, the upper mold core 302 and the lower mold core 303;

[0035] like Figure 8 , Fig. 9 and Fig.10As shown, the ejection mechanism 4 includes an ejector rod and an ejector rod fixing plate 401, the lower end of the ejector rod is arranged on the ejector rod fixing plate 401, and the baffle plate 5 is arranged below the ejector rod fixing plate 401;

[0036] like Figures 6 to 10 As shown, the ejector includes 2 ejector pins 8, 6 straight ejector pins and 8 inclined ejector pins. The 6 straight ejector pins include 2 straight ejector pins A9, 2 straight ejector pins B10 and 2 straight ejector pins C11. The 8 inclined ejector pins include 2 inclined ejector pins A12, 2 inclined ejector pins B13 and 2 inclined ejector pins C14. Among them, 1 ejector pin 8, 1 inclined ejector pin A12, 1 straight ejector pin A9, 1 inclined ejector pin B13, 1 straight ejector pin B10, 1 inclined ejector pin C14, 1 straight ejector pin C11 and 1 inclined ejector pin D15 are arranged in an elliptical arc from left to right on the upper rear side of the ejector fixing plate 401 to form a rear group of ejector pins. The other 1 ejector pin 8, 1 inclined ejector pin A12, 1 straight ejector pin A9, 1 inclined ejector pin B13, 1 straight ejector pin B10, 1 inclined ejector pin C14, 1 straight ejector pin C11 and 1 inclined ejector pin D15 are arranged in an elliptical arc from left to right on the upper rear side of the ejector fixing plate 401 to form a rear group of ejector pins. 9. One inclined ejector rod B13, one straight ejector rod B10, one inclined ejector rod C14, one straight ejector rod C11, and one inclined ejector rod D15 are arranged in an elliptical arc from left to right on the front upper side of the ejector rod fixing plate 401 to form a front group of ejector rods;

[0037] like Figure 5 , Figure 8 and Fig. 9 As shown, it also includes two ejection oil cylinders 28, one ejection oil cylinder 28 is fixedly arranged between two straight ejector rods A9, and the other ejection oil cylinder 28 is fixedly arranged between two straight ejector rods C11; the ejection oil cylinder 28 ejects the complex automobile interior product 26 as a whole through the ejection mechanism 4;

[0038] like Figure 3 As shown, a hot runner plate 16 is arranged below the upper composite plate 1 and around the hot runner 202, and the hot runner plate 16 is fixedly connected to the upper composite plate 1 by screws; the feed port 201 is arranged in the middle of the upper composite plate 1, the glue feed port 203 is arranged on the bottom surface of the upper mold core 302 and connected to the cavity, the hot runner 202 is arranged below the feed port 201, the upper end of the hot runner 202 is connected to the lower end of the glue feed port, the middle part of the hot runner 202 passes downward through the upper mold 301 and the upper mold core 302, and the lower end of the hot runner 202 is connected to the glue feed port 203.

[0039] like Figure 3 As shown, a cylinder fixing groove 17 is provided at the lower part of the lower mold core 303, the upper end of the ejection cylinder 28 is fixed in the cylinder fixing groove 17, and the lower end of the ejection cylinder 28 is fixed on the baffle 5, and the ejection cylinder 28 drives the ejector fixing plate 401 to eject the product upward as a whole.

[0040] like Figure 3 and Figure 8As shown, a support block 18 is provided on the push rod fixing plate 401 , and the lower end of the support block 18 is fixedly connected to the push rod fixing plate 401 by screws. The upper end surface of the support block 18 is in contact with the bottom of the lower mold core 303 , thereby supporting the lower mold core 303 .

[0041] like Figure 3 and Fig. 9 As shown, the ejector fixing plate 401 and the base plate 6 are fixedly connected by screws; a straight ejector mounting hole is provided on the ejector fixing plate 401 at a position corresponding to the lower side of the straight ejector, and the straight ejector is mounted on the ejector fixing plate 401 by screws; the lower end of the ejector pin 8 is fixedly connected to the ejector fixing plate 401 by screws.

[0042] like Figure 3 and Figure 4 As shown, the molding cavity includes an upper mold cavity 304 and a lower mold cavity 305, wherein the upper mold cavity 304 is below the upper mold core 302, and the lower mold cavity 305 is above the lower mold core 303, and the shape and size of the molding cavity match the shape and size of the complex automobile interior parts.

[0043] like Figure 4 and Figure 5 As shown, a tilted lift seat 19 is provided at the corresponding position between the lift rod fixing plate 401 and the lower end of the tilted lift rod, a slide groove 20 is provided in the tilted lift seat 19, a sliding bearing 21 is provided at the lower end of the tilted lift rod, the sliding bearing 21 slides along the guide groove, and the tilted lift rod is slidably connected with the slide groove 20 through the sliding bearing 21; a tilted lift guide block 22 is provided in the middle of the tilted lift rod.

[0044] like Figure 6 As shown, the four corners of the lower mold core 303 are provided with guide pillars 23, and the four corners of the upper mold core 302 are provided with guide sleeves (not shown in the figure). The guide pillars 23 are arranged in the guide sleeves to play a guiding role during demolding; balance blocks 27 are arranged on the front and rear sides of the lower mold core 303 to play a balancing role during demolding.

[0045] like Figure 6 and Figure 8 As shown, a straight ejector head 24 is provided at the upper end of the straight ejector rod, and an inclined ejector head 25 is provided at the upper end of the inclined ejector rod. The straight ejector head 24 and the inclined ejector head 25 extend upward to the cavity. After the complex automobile interior decoration part is injection molded, the upper end surface of the straight ejector head 24 and the upper end surface of the inclined head are in conflict with the bottom surface of the complex automobile interior decoration part.

[0046] like Figure 7 , Figure 8 and Fig.10 As shown, the straight push rod A9, the straight push rod B10 and the straight push rod C11 have the same structure, and the front push rod and the rear push rod are symmetrically arranged in the front-to-back direction on the push rod fixing plate 401.

[0047] Action flow: A complex precision mold for automotive interior parts. After the mold is closed, the molten plastic enters the hot runner 202 through the feed port 201, and is then diverted by the hot runner 202 to each glue inlet 203 of the product to fill the product cavity until the entire cavity is filled. The injection is stopped and the pressure is maintained for a period of time. At the same time, the core cooling water is circulated to cool down. After the product is formed, the mold is opened, the ejector cylinder 28 is ejected upward, and the ejector pin 8, the straight ejector and the inclined ejector are driven by the ejector fixing plate 401 to realize the demoulding of the product. After the product is taken out, the mold is closed again for the next injection molding cycle.

[0048] The embodiments described above are only preferred implementations of the present invention. Common changes and substitutions made by those skilled in the art within the technical solution of the present invention should be included in the protection scope of the present invention.

Claims

1. A precision mold for complex automotive interior parts, comprising an upper composite plate, a feeding mechanism, a mold mechanism, an ejection mechanism, a baffle and a bottom plate arranged in sequence from top to bottom; The feed mechanism includes a feed port, a hot runner and a glue inlet, and the mold mechanism includes an upper mold, an upper mold core and a lower mold core; the upper mold core is embedded in the lower concave of the upper mold, and cooling water channels are arranged in the upper mold core and the lower mold core. The lower mold core is arranged below the upper mold and the upper mold core, and a cavity is formed between the upper mold, the upper mold core and the lower mold core; The ejection mechanism comprises an ejector rod and an ejector rod fixing plate, the lower end of the ejector rod is arranged on the ejector rod fixing plate, and the baffle plate is arranged below the ejector rod fixing plate, and is characterized in that: The ejector rods include 2 ejector pins, 6 straight ejector rods and 8 inclined ejector rods, the 6 straight ejector rods include 2 straight ejector rods A, 2 straight ejector rods B and 2 straight ejector rods C, and the 8 inclined ejector rods include 2 inclined ejector rods A, 2 inclined ejector rods B, 2 inclined ejector rods C and 2 inclined ejector rods D; wherein 1 ejector pin, 1 inclined ejector rod A, 1 straight ejector rod A, 1 inclined ejector rod B, 1 straight ejector rod B, 1 inclined ejector rod C, 1 inclined ejector rod C and 1 inclined ejector rod D are arranged in an elliptical arc above the rear side of the ejector rod fixing plate, and are arranged in sequence from left to right to form a rear group of ejector rods, and the other 1 ejector pin, 1 inclined ejector rod A, 1 straight ejector rod A, 1 inclined ejector rod B, 1 straight ejector rod B, 1 inclined ejector rod C, 1 inclined ejector rod C and 1 inclined ejector rod D are arranged in an elliptical arc above the front side of the ejector rod fixing plate, and are arranged in sequence from left to right to form a front group of ejector rods; It also includes two ejection cylinders, one of which is fixedly arranged between two straight ejector rods A, and the other is fixedly arranged between two straight ejector rods C; the ejection cylinders eject the complex automotive interior product as a whole through the ejection mechanism.

2. A complex automotive interior parts precision mold according to claim 1, characterized in that: A hot runner plate is arranged below the upper composite plate and around the hot runner, and the hot runner plate is fixedly connected to the upper composite plate by screws; the feed port is arranged in the middle of the upper composite plate, the glue feed port is arranged on the bottom surface of the upper mold core and connected to the cavity, the hot runner is arranged below the feed port, the upper end of the hot runner is connected to the lower end of the glue feed port, the middle part of the hot runner passes downward through the upper mold and the upper mold core, and the lower end of the hot runner is connected to the glue feed port.

3. A complex automotive interior parts precision mold according to claim 1, characterized in that: The lower part of the lower mold core is provided with a cylinder fixing groove, the upper end of the ejection cylinder is fixed in the cylinder fixing groove, the lower end of the ejection cylinder is fixed on the baffle plate, and the ejection cylinder drives the ejector rod fixing plate to eject the product upward as a whole.

4. A complex automotive interior parts precision mold according to claim 1, characterized in that: A support block is arranged on the ejector fixing plate, the lower end of the support block is fixedly connected to the ejector fixing plate by screws, and the upper end surface of the support block abuts against the bottom of the lower mold core.

5. The complex automotive interior parts precision mold according to claim 1, characterized in that: The push rod fixing plate and the bottom plate are fixedly connected by screws; a straight push rod mounting hole is provided on the push rod fixing plate at a position corresponding to the lower side of the straight push rod, and the straight push rod is mounted on the push rod fixing plate by screws; the lower end of the ejector pin is fixedly connected to the push rod fixing plate by screws.

6. A complex automotive interior parts precision mold according to claim 1, characterized in that: The molding cavity comprises an upper mold cavity and a lower mold cavity, wherein the upper mold cavity is below the upper mold core, and the lower mold cavity is above the lower mold core, and the shape and size of the molding cavity match the shape and size of the complex automobile interior decoration part.

7. The complex automotive interior parts precision mold according to claim 1, characterized in that: An inclined ejector seat is provided at the corresponding position between the ejector fixing plate and the lower end of the inclined ejector rod, a slide groove is provided in the inclined ejector seat, a sliding bearing is provided at the lower end of the inclined ejector rod, the sliding bearing slides along the guide groove, and the inclined ejector rod is slidably connected with the slide groove through the sliding bearing; an inclined ejector guide block is provided in the middle of the inclined ejector rod.

8. The complex automotive interior parts precision mold according to claim 1, characterized in that: The four corners of the lower mold core are provided with guide pillars, and the four corners of the upper mold core are provided with guide sleeves. The guide pillars are arranged in the guide sleeves to guide during demolding; balance blocks are arranged on the front and rear sides of the lower mold core to balance during demolding.

9. The complex automotive interior parts precision mold according to claim 1, characterized in that: The upper end of the straight ejector rod is provided with a straight ejector head, and the upper end of the inclined ejector rod is provided with an inclined ejector head. The straight ejector head and the inclined ejector head extend upward to the cavity. When the complex automobile interior decoration part is injection molded, the upper end surface of the straight ejector head and the upper end surface of the inclined ejector head conflict with the bottom surface of the complex automobile interior decoration part.

10. A complex automotive interior parts precision mold according to claim 1, characterized in that: The straight push rods A, B and C have the same structure, and the front push rods and the rear push rods are symmetrically arranged in the front-to-back direction on the push rod fixing plate.

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