Automobile wheel cover forming die

Abstract

The utility model discloses an automobile wheel cover forming die which comprises an upper die, a driving seat is installed at the bottom of the upper die and covers the surface of a lower die, meanwhile, the bottom of the lower die is fixedly connected with a base, the driving seat is fixedly connected with an edge die core, and a die cavity is formed in the upper die. Demolding columns are fixedly mounted at the two ends of the driving seat; a cooling channel is formed in the center mold core, and a liquid inlet channel is formed in one end of the cooling channel. According to the automobile wheel cover forming mold, when a cooled product needs to be demolded, an upper mold moves upwards under the action of a hydraulic cylinder at the moment, so that a demolding plate moves upwards, and when the bottom of a limiting opening is in contact with a demolding column, the demolding column enables a center mold core to move upwards under the action of the demolding plate at the moment, so that demolding is completed. And a wheel cover product in the mold cavity is driven to move upwards, so that the wheel cover product can be quickly demolded, and the molding efficiency of the mold is improved.

Description

Technical Field

[0001] The utility model relates to the field of moulds, in particular to a mould for forming a wheel cover of an automobile. Background Art

[0002] As the Chinese automobile market matures and rises, large-scale sales have made Chinese joint ventures gradually feel the pressure of direct imports from abroad; the first step of localization is to choose a foreign-funded injection molding supplier that produces domestically; the second step of localization is to designate a mold factory to carry out technical research on automobile wheel cover molds, but foreign-funded injection molding suppliers are still producing them; the third step of localization is for domestic mold factories and injection molding factories to jointly develop lightweight products, with mold prices reduced to half of the original price and injection molding product prices reduced to one-third of the original price;

[0003] After analysis, it is found that the wall thickness of the automobile wheel cover product is about 1.5mm, which is a thin-walled part with a relatively soft material. Since the actual product of the automobile wheel cover has a large area of ​​undercut surface, it is necessary to design a slider core puller. The large undercut is wrapped on the punch core. The conventional mechanism needs to design a cylinder core puller on the opposite side to first pull out the undercut and then eject the product to demould. However, the existing molds for injection molding automobile wheel covers have complex structures, poor stability, short service life, and inconvenient maintenance.

[0004] To solve the above problems, after searching, a Chinese patent with the authorization announcement number CN209580373U discloses an automobile wheel cover injection mold with a slider pulling deformation structure; the article includes a mold opening inclined guide column driving the large slider to retreat, the pull block remains motionless under the action of the spring force, and the large slider continues to retreat to drive the pull block to move, the product is pulled and deformed, and then ejected and demolded. This structure simplifies the mold structure, has good working stability, long service life, and convenient later maintenance;

[0005] When the product is formed inside the mold, an ejector mechanism is needed to eject the product. The ejector mechanism is generally driven by a cylinder, so a separate drive source is required to drive the product, which directly increases the mold opening cost of the product. Utility Model Content

[0006] The utility model aims to provide a forming die for an automobile wheel cover to solve the defects mentioned in the above background technology.

[0007] To achieve the above object, a car wheel cover forming mold is provided, comprising an upper mold, a driving seat is installed at the bottom of the upper mold, and the driving seat covers the surface of the lower mold, and the bottom of the lower mold is fixedly connected to the base, and the driving seat is fixedly connected to the edge mold core, and a mold cavity is opened inside the upper mold; demoulding columns are fixedly installed at both ends of the driving seat;

[0008] A cooling channel is provided inside the central mold core, and a liquid inlet channel is provided at one end of the cooling channel, while a liquid discharge channel is provided at the other end of the cooling channel.

[0009] Preferably, the lower mold is a "T"-shaped structure made of metal material, and positioning columns are fixedly installed on both sides of the surface of the lower mold. At the same time, positioning holes are opened on both sides of the bottom of the upper mold, and the positioning columns are inserted into the inside of the positioning holes.

[0010] Preferably, a through opening is provided in the middle of the edge mold core, and the through opening is adapted to the size of the center mold core, and the center mold core is arranged through the through opening, and the surfaces of the center mold core and the edge mold core are arranged horizontally.

[0011] Preferably, the cooling channel inside the central mold core is spirally arranged, and the liquid inlet channel at one end of the cooling channel is fixedly connected to the liquid inlet terminal, and the liquid discharge channel at the other end of the cooling channel is fixedly connected to the liquid discharge terminal.

[0012] Preferably, two sets of stripping plates are screwed and fixed on both sides of the bottom of the upper mold, and a limiting opening is provided inside the stripping plate, and the limiting opening is an "I"-shaped structure.

[0013] Preferably, the limit opening is adapted to the size of the demoulding column, and the length of the demoulding column is greater than the depth of the limit opening. At the same time, the upper mold moves upward to demould the wheel cover product by driving the edge mold core upward through the demoulding plate and the demoulding column.

[0014] Compared with the prior art, the utility model has the following beneficial effects: when the cooled product needs to be demolded, the upper mold moves upward under the action of the hydraulic cylinder, causing the demolding plate to move upward; when the bottom of the limit port contacts the demolding column, the demolding column, under the action of the demolding plate, causes the center mold core to move upward, driving the wheel cover product inside the mold cavity to move upward, thereby quickly demolding the wheel cover product and improving the molding efficiency of the mold; there is no need to use a separate driving source to drive the product for demolding, thereby directly reducing the mold opening cost of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the front view of the structure of the utility model;

[0016] Figure 2 The utility model structure Figure 1 Schematic diagram of the cross-sectional structure;

[0017] Figure 3 The utility model structure Figure 2 Schematic diagram of demoulding;

[0018] Figure 4 It is a schematic diagram of the structure of the stripping plate of the utility model.

[0019] Numbers in the figure: 1. Upper mold; 2. Positioning column; 3. Demolding plate; 4. Limiting port; 5. Demolding column; 6. Driving seat; 7. Lower mold; 8. Base; 9. Cavity; 10. Edge core; 11. Center core; 12. Cooling channel; 13. Liquid inlet terminal; 131. Liquid discharge terminal; 132. Liquid inlet channel; 133. Liquid discharge channel; 14. Wheel cover product. DETAILED DESCRIPTION

[0020] See also Figure 1-4 The utility model provides a car wheel cover forming mold, including an upper mold 1, a driving seat 6 is installed at the bottom of the upper mold 1, and the driving seat 6 covers the surface of the lower mold 7, and the bottom of the lower mold 7 is fixedly connected with the base 8, and the driving seat 6 is fixedly connected with the edge mold core 10, and a mold cavity 9 is opened inside the upper mold 1; demoulding columns 5 are fixedly installed at both ends of the driving seat 6;

[0021] A cooling channel 12 is defined inside the central mold core 11 , and a liquid inlet channel 132 is defined at one end of the cooling channel 12 , while a liquid discharge channel 133 is defined at the other end of the cooling channel 12 .

[0022] like Figure 1 As shown: when the product is formed inside the mold, the coolant first enters the interior of the cooling channel 12 from the liquid inlet terminal 13, and after the high-temperature product is cooled by the cooling channel 12, the coolant is discharged from the liquid discharge terminal 131;

[0023] When the cooled product needs to be demoulded, the upper mold 1 moves upward under the action of the hydraulic cylinder, causing the demoulding plate 3 to move upward. When the bottom of the limit port 4 contacts the demoulding column 5, the demoulding column 5, under the action of the demoulding plate 3, causes the center mold core 11 to move upward, driving the wheel cover product 14 inside the mold cavity 9 to move upward. The wheel cover product 14 can be demoulded quickly, thereby improving the molding efficiency of the mold. There is no need to use a separate driving source to drive the product for demoulding, which directly reduces the mold opening cost of the product.

[0024] As a preferred embodiment, the lower mold 7 is a "T"-shaped structure made of metal material, and positioning columns 2 are fixedly installed on both sides of the surface of the lower mold 7. At the same time, positioning holes are opened on both sides of the bottom of the upper mold 1, and the positioning columns 2 are inserted into the inside of the positioning holes.

[0025] A through hole is opened in the middle of the edge mold core 10 , and the through hole is adapted to the size of the central mold core 11 . Meanwhile, the central mold core 11 is arranged through the through hole, and the surfaces of the central mold core 11 and the edge mold core 10 are arranged horizontally.

[0026] The positioning column 2 is inserted into the positioning hole, and the upper mold 1 and the lower mold 7 can be precisely clamped.

[0027] As a preferred embodiment, the cooling channel 12 inside the central mold core 11 is spirally arranged, and the liquid inlet channel 132 at one end of the cooling channel 12 is fixedly connected to the liquid inlet terminal 13, and the liquid discharge channel 133 at the other end of the cooling channel 12 is fixedly connected to the liquid discharge terminal 131.

[0028] like Figure 1-4 As shown: the coolant enters the interior of the cooling channel 12 from the liquid inlet terminal 13 and the liquid inlet channel 132, and the cooling water inside the cooling channel 12 is discharged from the liquid discharge channel 133 and the liquid discharge terminal 131. The cooling channel 12 is set in an "S" shape to increase the residence time of the coolant inside the central mold core 11 and improve the heat dissipation efficiency of the central mold core 11 and the product inside the mold cavity 9.

[0029] As a preferred embodiment, two sets of stripping plates 3 are screwed and fixed on both sides of the bottom of the upper mold 1, and a limiting opening 4 is opened inside the stripping plate 3, and the limiting opening 4 is an "I"-shaped structure.

[0030] The size of the limit opening 4 is adapted to that of the demoulding column 5 , and the length of the demoulding column 5 is greater than the depth of the limit opening 4 . At the same time, the upper mold 1 moves upward to drive the edge mold core 10 to move upward through the demoulding plate 3 and the demoulding column 5 to demould the wheel cover product 14 .

Claims

1. A vehicle wheel cover forming die, comprising an upper die (1), characterized in that: A driving seat (6) is installed at the bottom of the upper mold (1), and the driving seat (6) covers the surface of the lower mold (7). At the same time, the bottom of the lower mold (7) is fixedly connected to the base (8), and the driving seat (6) is fixedly connected to the edge mold core (10). A mold cavity (9) is provided inside the upper mold (1); demoulding columns (5) are fixedly installed at both ends of the driving seat (6); A cooling channel (12) is provided inside the central mold core (11), and a liquid inlet channel (132) is provided at one end of the cooling channel (12), while a liquid discharge channel (133) is provided at the other end of the cooling channel (12).

2. The automobile wheel cover forming mold according to claim 1, characterized in that: The lower mold (7) is a "T"-shaped structure made of metal material, and positioning columns (2) are fixedly installed on both sides of the surface of the lower mold (7). At the same time, positioning holes are opened on both sides of the bottom of the upper mold (1), and the positioning columns (2) are inserted into the inside of the positioning holes.

3. The automobile wheel cover forming mold according to claim 1, characterized in that: A through hole is opened in the middle of the edge mold core (10), and the through hole is adapted to the size of the central mold core (11). At the same time, the central mold core (11) is arranged through the through hole, and the surfaces of the central mold core (11) and the edge mold core (10) are arranged horizontally.

4. The automobile wheel cover forming mold according to claim 1, characterized in that: The cooling channel (12) inside the central mold core (11) is arranged in a spiral shape, and the liquid inlet channel (132) at one end of the cooling channel (12) is fixedly connected to the liquid inlet terminal (13), while the liquid discharge channel (133) at the other end of the cooling channel (12) is fixedly connected to the liquid discharge terminal (131).

5. The automobile wheel cover forming mold according to claim 1, characterized in that: Two sets of stripping plates (3) are screwed and fixed on both sides of the bottom of the upper mold (1), and a limiting opening (4) is provided inside the stripping plate (3), and the limiting opening (4) is an "I"-shaped structure.

6. The automobile wheel cover forming mold according to claim 5, characterized in that: The size of the limit opening (4) is matched to that of the demoulding column (5), and the length of the demoulding column (5) is greater than the depth of the limit opening (4). At the same time, the upper mold (1) moves upward to drive the edge mold core (10) to move upward through the demoulding plate (3) and the demoulding column (5) to demould the wheel cover product (14).

Images