Die for producing and processing automotive trim

By designing a complete assembly of an automobile interior mold including an elastic mold layer and a scraper, the problem of burrs and burrs in automobile interior production is solved, the removal efficiency and waste utilization rate are improved, and the production cost is reduced.

CN119526695AInactive Publication Date: 2025-02-28TAIZHOU CHENYANG MACHINERY EQUIPMENT MANUFACTURING CO LTD
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Patent Information

Application Number
CN202411758767.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-03
Publication Date
2025-02-28
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

During the existing automotive interior production process, plastic products are prone to burrs and burrs during the molding process, which affects aesthetics and safety. The existing removal methods are inefficient and waste cannot be used.

Method used

Design a mold for automotive interior production and processing, including mold assembly, edge scraper and mounting frame. The mold assembly consists of two main body base molds and two elastic mold layers. The edge scraper is equipped with a rotary knife, a scraper and a sharpener. Through the elasticity of the mold layer and the action of the electric push rod, the burr area is exposed and removed.

Benefits of technology

Effectively reduce the burr area on the product, improve the burr removal efficiency, and reduce subsequent grinding treatment. The removed burrs can be recycled and utilized through vacuum pumps to reduce waste accumulation and production costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the field of molds, and discloses a mold for producing and processing automotive interiors, which comprises a mold assembly, an edge scraper for removing burrs and burrs of products in the mold assembly, and a mounting frame for bearing the mold assembly, the mold assembly comprises two main base molds and two mold layers attached in the two base molds, the mold layers are formed by die-casting an elastic alloy material, the two mold layers are in butt joint to form a mold cavity for containing molten plastic, the two base molds support the formed mold cavity, the two mold layers are in butt joint to form an injection hole in a butt joint gap, the upper mold and the lower mold correspond to the two base molds respectively, and the mold layers are arranged between the upper mold and the lower mold. A gap between an upper mold assembly and a lower mold assembly is shielded, so that burrs can only appear at a butt joint seam and an injection port of the two mold layers of a molded product, the two base molds can support the mold layers during mold closing injection, and deformation of the product caused by expansion during injection is avoided.
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Description

Technical Field

[0001] The invention relates to the field of moulds, in particular to a mould for producing and processing automobile interior decorations. Background Art

[0002] The plastic interiors in automobiles are mostly formed by extrusion injection and blow molding. During the production process, these two molding methods will form many burrs and burrs on the products, including the joints between the upper and lower molds, the injection ports, and between the assemblies formed by the upper and lower molds. Excessive burrs and burrs will have a certain impact on the appearance and safety of the products.

[0003] At the same time, the existing work of removing burrs and rough edges is to use a cutter to directly cut along the connection between the product and the burrs after the product is hardened and demolded. This method will result in a sharper fracture in the incision part, and subsequent grinding treatment is still required. In addition, the number of process steps increases and the efficiency becomes low. Moreover, after the burr plastic is removed, it is often not used as waste, which is wasteful and makes the mold messy. For this reason, a mold for automobile interior production and processing is proposed. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a mold for producing and processing automobile interior decoration, which has advantages and solves the problems.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a mold for automobile interior production and processing, including a mold assembly and a scraper for removing burrs and burrs of products in the mold assembly, and a mounting frame for supporting the mold assembly, the mold assembly including a two-piece main body base mold, and two mold layers fitted in the two-piece base mold, the mold layers are die-casted from a specific elastic alloy material, the two mold layers are butt-jointed to form a mold cavity for accommodating molten plastic, the two-piece base mold supports the formed mold cavity, and the two mold layers are butt-jointed to form an injection hole at the butt joint gap; the scraper includes a scraper assembly, the main body of the scraper assembly is a shell, the interior of which is hollow and is provided with a rotary knife, a scraper and a grinding head, the scraper cuts the connection between the burrs and the product, the grinding head smoothes the cutting marks, and the scraper assembly works in the mold The mold is assembled in the mold, and the upper and lower molds correspond to the two halves of the base mold respectively. By adding a mold layer between the upper and lower molds, the gap between the upper and lower mold assemblies is blocked, so that the molded product will only have burrs and burrs at the joints and injection ports of the two mold layers. When the mold is closed and injected, the two halves of the base mold can support the mold layer to avoid expansion during injection, which causes the product to be deformed; the elastic mold layer can expose the burr and burr area while the product is not completely separated from the mold through the action of the electric push rod. Then, in the removal of burrs and burrs, the edges on both sides of the removed burr fracture can be smoothed first to reduce the subsequent grinding process. The mold layer can meet the needs of burr and burr removal work in the injection molding state of the product, and can avoid bumps when the product is transferred to the new fixture.

[0006] Preferably, the two halves of the mold assembly are respectively provided with a base plate, a bearing groove is opened on the base plate, and a bearing is installed on the fitting surface of the base mold and the base plate and embedded in the bearing groove, so that the base mold and the base plate are rotatably connected, and a flywheel is provided on the back of the base mold and connected to an external driving mechanism. The mold assembly is driven to rotate by the external driving mechanism, and the burr and burr removal operation is performed in cooperation with a scraper, which can improve the burr and burr removal efficiency.

[0007] Preferably, an electric push rod is arranged at the center of the substrate, and the middle of the base mold is a hollow structure. The output end of the electric push rod can pass through the base mold and rest on the mold layer. The output end of the electric push rod can support the mold layer. When the molten plastic is injected, the mold layer is prevented from expanding toward the hollow area of ​​the base mold, which causes the product to deform. At the same time, after the molding of the product is completed, the two halves of the base mold are separated, and the output end of the electric push rod pushes the mold layer and presses against the product, exposing the burrs and burrs of the product while preventing the product from falling off. When the base mold is further separated, the electric push rod pushes the product out of the mold layer to complete the discharge.

[0008] Preferably, the mounting frame includes mounting plates symmetrically arranged on both sides, a set of connecting rails are arranged on both sides of the opposite surfaces of the two mounting plates, and a guide rail is arranged at the bottom of the two mounting plates for connection. An electric control telescopic rod is arranged above and below the two sets of connecting rails to control the spacing between the two mounting plates. The mounting plates on both sides are respectively screwed and fixed to a base plate to fix the half molds on both sides. The electric control telescopic rod controls the spacing between the two mounting plates and adjusts the spacing between the two base molds to meet the aforementioned needs of exposing burrs and edges of the product and discharging the product. At the same time, the mounting plate also shoulders the work of docking with the output end of the extrusion table to stabilize the two base molds and tightly press them together, so that the two mold layers are docked to form a stable injection cavity to avoid deformation.

[0009] Preferably, a limiting opening is provided at one end of the shell and extends into the interior thereof, and the rotary cutter is located between the limiting opening and the scraper. The rotation of the rotary cutter is driven by a motor built into the shell, and the rotation speed of the rotary cutter is proportional to the cutting speed of the scraper, that is, the faster the scraper cuts the burrs and rough edges, the faster the rotary cutter rotates, so that the scraper and the rotary cutter can stably cut the burrs and rough edges into burrs of uniform size, making it convenient to process the removed burrs and rough edges.

[0010] Preferably, the grinding head fits the fracture surface of the product after the scraper cuts it, and smoothes the edges on both sides of the fracture surface.

[0011] Preferably, the grinding head is provided with a rotating shaft rotatably connected to the shell, and a torsion spring is provided at the connection between the grinding head and the rotating shaft, so that when the scraper moves relative to the product, the grinding head can stably apply a certain pressure to the product to smooth out the fracture edges.

[0012] Preferably, a limit plate is further provided inside the shell, and the scraper, the grinding head and the limit plate form a separation space inside the shell to accommodate small pieces of burrs formed after cutting by the rotary knife and the scraper.

[0013] Preferably, the scraper also includes two groups of connecting frames, two gas rods and a connecting plate. The two groups of connecting frames are symmetrically connected on both sides of the scraper assembly. The two gas rods are respectively connected to the two groups of scraper assemblies. The connecting plate is used to simultaneously fix the two gas rods and connect to an external manipulator. The connecting frame and the connecting rod structure can control the angle of the shell through the output operation of the two gas rods, so that the scraper can stably remove burrs on edges.

[0014] Preferably, the edge scraper also includes an air duct, one end of which is connected to the separation space formed inside the shell, and the other end is connected to an external vacuum pump. The operation of the vacuum pump can directly remove burrs and hair blocks in the separation space.

[0015] Compared with the prior art, the present invention provides a mold for automobile interior production and processing, which has the following beneficial effects:

[0016] 1. The upper and lower molds correspond to two base molds respectively. By adding a mold layer between the upper and lower molds, the gap between the upper and lower mold assemblies is blocked, so that the molded products will only have burrs and burrs at the joints and injection ports of the two mold layers. When the molds are closed for injection, the two base molds can support the mold layers to avoid expansion during injection, which may cause the product to lose shape.

[0017] 2. Through the setting of the mold layer, the burr area on the product is minimized to the greatest extent, and only the burrs and burrs that cannot be avoided will appear on the parting line, so that the treatment of these burrs and burrs only needs to be directed to the direction of the parting line, which can reduce the difficulty of removing burrs and burrs;

[0018] 3. The elastic mold layer can expose the burr and burr area without completely separating the product from the mold through the action of the electric push rod. Then, when removing the burr and burr, the edges on both sides of the removed burr fracture can be smoothed to reduce the subsequent grinding process. The mold layer can meet the needs of removing burr and burr of the product in the injection molding state, and can avoid bumps when transferring the product to the new fixture.

[0019] 4. The removed burrs can be recycled and reused through a vacuum pump, which can reduce the accumulation of waste and reduce costs and increase efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the installation and use structure of a mold for automobile interior production and processing of the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of an extrusion table of a mold for automobile interior production and processing according to the present invention;

[0022] Figure 3 This is a schematic diagram of the overall appearance structure of a mold for automobile interior production and processing of the present invention;

[0023] Figure 4 This is a schematic diagram of the connection structure between the mounting frame and the mold assembly of a mold for automobile interior production and processing of the present invention;

[0024] Figure 5 This is a schematic diagram of the disassembly of the mold assembly structure of a mold for automobile interior production and processing according to the present invention;

[0025] Figure 6 It is a schematic diagram of the structural state of a mold for automobile interior production and processing during burr removal of the present invention;

[0026] Figure 7This is a schematic diagram of the overall appearance structure of a scraper for a mold for automobile interior production and processing according to the present invention;

[0027] Figure 8 This is a schematic diagram of the working structure of the scraper gas rod of a mold for automobile interior production and processing of the present invention;

[0028] Fig. 9 The present invention is a schematic diagram of the internal structure of a mold scraping assembly for automobile interior production and processing.

[0029] In the figure:

[0030] 1. Extrusion table;

[0031] 2. Mounting frame; 21. Mounting plate; 22. Connecting rail; 23. Guide rail;

[0032] 3. Mold assembly; 31. Base plate; 32. Base mold; 33. Mold layer; 311. Bearing groove; 312. Electric push rod; 321. Flywheel;

[0033] 4. Edge scraper; 41. Edge scraper assembly; 42. Connecting frame; 43. Gas rod; 44. Connecting plate; 45. Air guide tube; 411. Shell; 412. Limiting port; 413. Rotating knife; 414. Scraper; 415. Grinding head; 416 Limiting plate. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] As introduced in the background technology, there are deficiencies in the prior art. In order to solve the above technical problems, this application proposes a mold for the production and processing of automobile interiors.

[0036] In a typical embodiment of a mold for automobile interior production and processing of the present application, as Figure 1-8As shown, a mold for automobile interior production and processing includes a mold assembly 3, a mounting frame 2 for carrying the mold assembly 3, and a scraper 4 for removing burrs and burrs of products in the mold assembly 3, and an extrusion table 1 for extruding the mold, wherein the mold assembly 3 is installed on the mounting frame 2 and is not connected to the extrusion table 1, and the mounting frame 2 and the mold assembly 3 are transported to the working position of the extrusion table 1 through an external conveying device such as a conveyor belt for extrusion, fixing and clamping. The extrusion table 1 also serves as an injection molding machine. At the extrusion station, its injection hole is docked with the mold assembly 3, and molten plastic is injected into the mold to form the injection molding structure of the injection molding machine in the mold. It is a mature existing technology and has nothing to do with the mold content of this case, so the illustrated part only shows the extrusion function of the extrusion table 1;

[0037] See also Figure 4 and Figure 5 As shown, the main body of the mold assembly 3 includes two base molds 32 and two mold layers 33 with elasticity and respectively attached to the two base molds 32. When the mold layer 33 is attached to the base mold 32, bolts are arranged at the edge of the mold layer 33 to be fixedly connected to the base mold 32. In this way, different mold layers 33 can be easily replaced, and can be used to cast interior panels of different shapes and sizes, and the overall application range is wider and more comprehensive; wherein the mold layer 33 is die-cast and has a smooth inner wall without any gaps. After the two mold layers 33 are butt-jointed, a mold cavity for accommodating molten plastic is formed to meet the molding conditions of plastic products, and at the same time, an injection port is arranged at the butt joint gap between the two mold layers 33, so that the manufactured product will only form burrs and burrs at the gap between the two mold layers 33 and the injection port, so as to facilitate the edge scraper 4 to process the burrs and burrs of the product along the gap between the two mold layers 33, and at the same time, a concave layer adapted to the mold layer 33 is provided on the base mold 32 to support the mold layer 33;

[0038] For further information, see Figure 2 as well as Figures 6 to 8 As shown, the edge scraper 4 includes a main edge scraper assembly 41, two sets of connecting frames 42 rotatably connected to the edge scraper assembly 41, two gas rods 43 cooperating with the connecting frames 42 to adjust the angle of the edge scraper assembly 41, and a connecting plate 44 that fixes the two gas rods 43 and connects to an external manipulator at the same time. The external manipulator adjusts the overall position of the edge scraper 4 so that it is stably aligned with the burr and rough edge of the product.

[0039] The scraping assembly 41 includes a shell 411, which is hollow inside and has a limiting opening 412 at one end thereof extending into the inside. A rotary cutter 413 is arranged in the middle of the shell 411, and a scraper 414 is arranged at the bottom of the shell 411. The rotary cutter 413 is located between the limiting opening 412 and the scraper 414. A grinding head 415 is arranged on the other side of the scraper 414, and a limiting plate 416 is arranged above the scraper 414. The scraper 414, the grinding head 415 and the limiting plate 416 form a separated space inside the shell 411. An air duct 45 is arranged on the shell 411 to connect to the space, and the other end of the air duct 45 is connected to an external vacuum pump.

[0040] After the product between the two mold layers 33 is formed, burrs and burrs are formed in the gap between the two mold layers 33, and the burrs and burrs protrude from the surface of the product. The burrs and burrs are removed when the molten plastic hardens but the burrs are not hardened, so as to avoid sharp fractures when the burrs and burrs are removed when the product is completely hardened. The burrs and burrs that are not completely hardened can be removed by the operation of the scraper 4. The external manipulator adjusts the scraper 4 to move to the product, and at the same time, the base mold 32 is slightly separated to expose the burr part, while the product itself is kept in a clamping state, and the output end of the gas rod 43 close to the limit opening 412 is ejected, so that the limit opening 412 cuts into the burr and burrs, and limits the burrs and burrs. The manipulator controls the scraper 4 to move relative to the product to remove the burrs and burrs. During the movement, the burrs of the product enter the shell 41 through the guidance of the limit opening 412. 1, the rotary cutter 413 is driven to rotate by the motor built into the shell 411, and the burr part is vertically cut from top to bottom, so that the overall burr is divided into protruding burrs, and in the further movement, the output end of the gas rod 43 on the other side extends, so that the scraper 414 cuts into the root of the burr block to separate it from the product, and then enters the formed separation space, and the removed burrs are sucked away by an external vacuum pump. Note that the rotation speed of the rotary cutter 413 is proportional to the cutting speed of the scraper 414, that is, the faster the relative movement of the shell 411 and the mold assembly 3 is, the faster the rotation speed of the rotary cutter 413 is; the vacuum pump sucks away the removed burrs and burrs, and the waste can be collected by an external collection box, etc., so that the plastic waste can be collected in a centralized manner, can be reused, reduce costs and increase efficiency, and can also avoid the accumulation of excessive plastic waste at the mold injection molding site.

[0041] At this time, the cut-off part will appear as a fracture on the product. It should be noted that the appearance of the fracture is related to the product structure of the burr part. When the part of the product where the burr appears is a plane, the scraper 414 will cut the burr with almost no fracture. When the burr part is an arc surface, the size of the fracture is related to the thickness of the burr, and sharp edges will appear on both sides of the fracture. A grinding head 415 is arranged behind the scraper 414 to fit the burr fracture. The grinding head 415 is rotatably connected to the shell 411 through a rotating shaft, and a torsion spring is arranged at the connection between the grinding head 415 and the rotating shaft, so that when the shell 411 moves in a process of fitting to the product, the torsion spring always applies a force to the grinding head 415 toward the fracture. The fitting surface of the grinding head 415 and the fracture is arranged according to the design of the product, so that it can fit with the sharp edges on both sides of the fracture for smoothing.

[0042] For further information, see Figures 3 to 5 As shown, the mounting frame 2 includes two mounting plates 21 for mounting two base molds 32 respectively, a group of connecting rails 22 are respectively arranged on both sides of the opposite surfaces of the two mounting plates 21, and a guide rail 23 is arranged at the bottom of the two mounting plates 21, and an electric control telescopic rod is respectively arranged above and below the two groups of connecting rails 22 to control the distance between the two mounting plates 21 so that the two mounting plates 21 slide along the lower guide rail 23, wherein the guide rail 23 is a slot-shaped structure with a hollow bottom, so that after the two mounting plates 21 are separated, the product formed in the mold assembly 3 and deburred can be separated from the mounting frame 2 and the mold assembly 3 for subsequent processing, and it is also convenient for the mounting frame 2 to adapt to the installation of mold assemblies 3 of different sizes;

[0043] In addition, the guide rail 23 can also be used to connect with the external conveying device to achieve the effect that the mold leaves the extrusion station of the extrusion table 1 after the injection is completed. It is mentioned in the above text that the scraper 4 can process the burrs and burrs of the product. Since the treatment of burrs and burrs requires waiting for the molten plastic to cool to the degree of hardening, if the treatment process is placed in the extrusion station, it will seriously affect the production efficiency of the product. By setting up multiple groups of mounting frames 2 and mold assemblies 3, one group can be detached from the extrusion station after completing the injection of the molten plastic, and the next group of mounting frames 2 and mold assemblies 3 are moved to the extrusion station for injection, while the previous group is processing the burrs and burrs, which can speed up the production efficiency of the product.

[0044] For further information, see Figure 5As shown, a base plate 31 is further provided between the base mold 32 and the mounting plate 21 to connect the two. The base plate 31 is fixed to the mounting plate 21 by bolts. A bearing groove 311 is provided on the side of the base mold 31 facing the base mold 32, and an electric push rod 312 is provided at the center thereof. Corresponding to the bearing groove 311, a bearing is provided on the fitting surface of the base mold 32 and the base plate 31, so that the base mold 32 and the base plate 31 are rotatably connected. At the same time, a flywheel 321 is provided on the base mold 32. The base mold 32 can be driven to rotate by an external driving mechanism, using a belt or other transmission mechanism. In the figure, the base mold 32 is a rectangular body. When driving the base mold 32 to rotate, it is necessary to consider whether the rotation of the base mold 32 will be affected by the connecting rail 22 and the guide rail 23 on the mounting frame 2. At the same time, the base mold 32 is a hollow structure, so that the output end of the electric push rod 312 can pass through it to act on the mold layer 33;

[0045] The aforementioned article proposes "making the edge scraper 4 and the product move relative to each other". It is difficult to remove all burrs of the product by simply using a manipulator to drive the edge scraper 4 to move. With the rotation of the base mold 32, the edge scraper 4 can remove the burrs more conveniently.

[0046] In addition, since the mold layer 33 is in sheet form and is made of an elastic alloy material, the two mounting plates 21 move away from each other to split the base mold 32, and at the same time, the output ends of the electric push rods 312 on both sides pop out to extrude the mold layers 33 on both sides. Since the connection between the mold layer 33 and the base mold 32 is only fixed by bolts at the outer edges, when the base molds 32 on both sides are split, the electric push rods 312 push the mold layer 33 to deform the mold layer 33, and only press against the mold layer in the middle part, and while keeping the product fixed, the burrs and burrs are exposed through the separation of the edge part of the mold layer 33, so that the scraper 4 can clean them. After cleaning, the output end of the electric push rod 312 is recovered, and at the same time, the two base molds 32 are further split, so that the cleaned product can be separated from the mold assembly 3 and fall from the opening in the middle of the lower guide rail 23 to a predetermined recovery point.

[0047] It should be added that the shape of the product is not fixed. When the mold layer 33 is used, the burrs that penetrate into the gaps of the mold layer 33 are smaller in size than the product itself, which will cause the burr part to cool down faster and then solidify faster, and it is impossible to meet the aforementioned work of removing burrs when the burrs are not completely hardened. For this purpose, an electric heating device can be set at the edge of the mold cavity of the base mold 32. Since the mold layer 33 is a sheet structure, the burrs generated at the gaps can be heated well, so that they cannot be completely cooled and hardened. The product itself is cooled and hardened without being heated, and the impact on the product itself is reduced during the burr removal process. The burrs can also be removed after the burrs on the product and its edges are hardened. It is necessary to wait for the product itself to harden, and the burrs cannot be removed before hardening to prevent the unhardened product from being deformed due to burr removal.

[0048] In addition, the output end of the electric push rod 312 is still in contact with the side wall of the mold layer 33 when it is in the recovered state. Since the middle of the base mold 32 is a hollow structure, the base mold 32 cannot provide good support for the mold layer 33 when the injection molding machine injects into the mold layer 33. If the output end of the electric push rod 312 does not contact the mold layer 33, the mold layer 33 may expand during injection molding, which may cause the molded product to fail to meet the standards.

[0049] The working process of the whole device is as follows:

[0050] First, select the type of mold layer 33 of the mold to be cast, fix it to the base mold 32, and perform the mold closing operation on the mold assembly 3. After the two sets of mold layers 33 are aligned and joined, the output end of the electric push rod 312 on the base plate 31 is telescopically held in the middle of the mold layer 33, and the raw material is injected through the injection port. After the injection is completed, wait for the mold to be formed. After the molding is cooled, start the electric control telescopic rods set up above and below the connecting rail 22 to separate the two mounting plates 21, so that the two sets of base molds 32 are also separated. At this time, the electric push rod 312 on the base plate 31 is still held in the center of the mold layer 33. Because the sheet elastic alloy of the mold layer 33 has the ability to deform, it will be like Figure 6 As shown, the middle is lifted up, and the sides will be separated by a certain gap as the base mold 32 continues to separate, while the side walls of the mold layer 33 lifted up in the middle always clamp the product body, so that the product itself can be clamped, while the edges are separated to form a working gap as the base mold 32 separates. At this time, a reasonable separation state is maintained, and the scraper 4 is controlled by the manipulator to remove the burrs along the working gap. The manipulator can control the position and angle of the scraper 4, and the flywheel 321 can control the rotation of the base mold 32 and the mold layer 33, so as to change the position of the edge of the product. The two cooperate with each other to achieve more coordinated scraping and deburring work. After the burrs are removed, the corresponding mold layers 33 on both sides are controlled to separate. Here, they are completely separated, and the electric push rod 312 does not need to continue to hold them. At this time, the injection molded product can be demolded normally, and the efficiency of the entire device is greatly improved.

[0051] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mold for automobile interior production and processing, comprising a mold assembly (3), a scraper (4) for removing burrs and burrs from a product in the mold assembly (3), and a mounting frame (2) for carrying the mold assembly (3), characterized in that: The mold assembly (3) comprises two main body base molds (32) and two mold layers (33) fitted in the two base molds (32). The mold layers (33) are die-casted from a specific elastic alloy material. The two mold layers (33) are butt-jointed to form a mold cavity for accommodating molten plastic. The two base molds (32) support the formed mold cavity. After the two mold layers (33) are butt-jointed, an injection hole is formed at the butt joint gap. The scraper (4) comprises a scraper assembly (41). The main body of the scraper assembly (41) is a shell (411), which is hollow inside and is provided with a rotary knife (413), a scraper (414) and a grinding head (415). The scraper (414) cuts the connection between the burr and the product, and the grinding head (415) smoothes the traces left after cutting. The scraper assembly (41) works in the mold assembly (3).

2. The mold for automobile interior production and processing according to claim 1, characterized in that: The two halves of the mold assembly (3) are respectively provided with a base plate (31), the base plate (31) is provided with a bearing groove (311), a bearing is installed on the mating surface of the base mold (32) and the base plate (31) and is embedded in the bearing groove (311), so that the base mold (32) and the base plate (31) are rotatably connected, and a flywheel (321) is provided on the back of the base mold (32) and is connected to an external driving mechanism.

3. The mold for automobile interior production and processing according to claim 2, characterized in that: An electric push rod (312) is arranged at the center of the base plate (31), and the middle of the base mold (32) is a hollow structure. The output end of the electric push rod (312) can pass through the base mold (32) and abut against the mold layer (33).

4. The mold for automobile interior production and processing according to claim 3, characterized in that: The mounting frame (2) comprises mounting plates (21) symmetrically arranged on both sides, a group of connecting rails (22) are respectively arranged on both sides of the opposite surfaces of the two mounting plates (21), a guide rail (23) is arranged at the bottom of the two mounting plates (21) for connection, and an electric control telescopic rod is respectively arranged above and below the two groups of connecting rails (22) to control the distance between the two mounting plates (21), and the mounting plates (21) on both sides are respectively screwed and fixed to a base plate (31) for fixing the half molds on both sides.

5. The mold for automobile interior production and processing according to claim 1, characterized in that: A limiting opening (412) is provided at one end of the shell (411) and extends into the interior thereof; the rotating knife (413) is located between the limiting opening (412) and the scraper (414); the rotating knife (413) is driven to rotate by a motor built into the shell (411); and the rotating speed of the rotating knife (413) is proportional to the cutting speed of the scraper (414).

6. The mold for automobile interior production and processing according to claim 5, characterized in that: The grinding head (415) fits the fracture surface formed after the product is cut by the scraper (414), and smoothes the edges on both sides of the fracture surface.

7. The mold for automobile interior production and processing according to claim 6, characterized in that: The grinding head (415) is provided with a rotating shaft which is rotatably connected to the housing (411), and a torsion spring is provided at the connection between the grinding head (415) and the rotating shaft.

8. The mold for automobile interior production and processing according to claim 6, characterized in that: A limiting plate (416) is also provided inside the shell (411), and the scraper (414), the grinding head (415) and the limiting plate (416) form a separation space inside the shell (411) to accommodate small pieces of burrs formed after cutting by the rotary knife (413) and the scraper (414).

9. The mold for automobile interior production and processing according to claim 8, characterized in that: The scraper (4) further comprises two groups of connecting frames (42), two gas rods (43) and a connecting plate (44); the two groups of connecting frames (42) are symmetrically connected to the two sides of the scraper assembly (41); the two gas rods (43) are respectively connected to the two groups of scraper assemblies (41); and the connecting plate (44) is used to simultaneously fix the two gas rods (43) and connect to an external manipulator.

10. The mold for automobile interior production and processing according to claim 8, characterized in that: The edge scraper (4) further comprises an air guide tube (45), one end of which is in communication with the separation space formed inside the shell (411), and the other end of which is in communication with an external vacuum pump.