Hot-pressing die for cold-hot die

Abstract

The application relates to the technical field of hot-pressing molds, and discloses a cold-hot mold hot-pressing mold which comprises a mold assembly; a positioning assembly is arranged at the top of the mold assembly; a supporting assembly is symmetrically arranged at the top of the mold assembly; the positioning assembly is located between the two groups of supporting assemblies; and a clamping assembly is arranged above the supporting assembly; when in use, after the leather frame is lifted, the leather is manually hung, and the mold is moved to a vacuum area; through the work of the two groups of air cylinders, the two groups of clamping blocks clamp the two sides of the leather frame respectively, and then the clamping blocks are lifted along with the upper pressing frame to perform heating treatment; after the mold is closed, the mold is moved to a leather hanging area, and the product is manually taken off, so that the processing is completed; the skin is fixed by adopting a special-shaped leather frame; the skin fixed frame is in a pre-deformation state according to the U-shaped state after forming; the skin stretching rate of the side forming area is reduced; the upper mold assists in adsorbing and fixing the skin; the skin is prevented from drooping after being heated; the material utilization rate is improved; and the forming qualified rate of the part skin is improved.

Description

Technical Field

[0001] This invention relates to the field of hot pressing mold technology, specifically a hot pressing mold for cold and hot pressing. Background Technology

[0002] Automotive interior refers to the decoration inside a car, including the dashboard, center console, seats, etc. When manufacturing the U-shaped structure parts of the seat back panel, cold and hot molds and hot pressing molds are required to perform composite molding processing of the automotive interior.

[0003] Traditional vacuum forming molds require flat surface heating and material feeding. During the forming process, the surface is pre-blown and deformed to address the requirements of high-height or complex-shaped parts. This process presents difficulties for the production of U-shaped chair back panels, resulting in higher surface waste or edge overlap requirements. Furthermore, the pre-blown forming process requires auxiliary equipment. When the parts being formed are tall, the forming height of general equipment is insufficient, while specialized equipment requires a higher forming height, leading to excessively tall overall equipment. However, specialized equipment is hard to find on the market and lacks widespread applications in other products, causing inconvenience in processing.

[0004] Existing automotive interior hot and cold mold hot pressing molds require a high stretching forming height to solve the problem of excessive stretching ratio in areas with large side stretching ratios. They also need to consider the actual operable surface fixing frame and the normal mold height range of matching equipment. Summary of the Invention

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides a hot-pressing mold for cold and hot molds, which has the advantages of reducing the local stretching rate of the skin and reducing the stretching rate of the skin in the side forming area. It solves the problem that existing hot-pressing molds for automotive interior panels require a high stretching forming height and an excessively large stretching ratio during use.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the present invention provides the following technical solution: a hot and cold mold hot pressing mold, comprising a mold assembly; a positioning component is provided on the top of the mold assembly, and support components are symmetrically arranged on the top of the mold assembly, the positioning component is located between the two sets of support components, a clamping component is provided above the support components, the clamping components are installed on both sides of the mold assembly, a vacuum component is provided inside the mold assembly, and an oven is provided on one side of the mold assembly.

[0009] Preferably, the mold assembly includes: a base plate with a support fixedly connected to its top; a mold, which is disposed on the top of the support, and multiple molds are provided; an upper template, which is disposed above the mold; and an upper pressing frame, which is fixedly connected to the bottom of the upper template.

[0010] Preferably, the positioning component includes: a leather frame disposed on the top of the support base; cylinder 1 symmetrically and fixedly connected to the top of the support base; and limiting blocks fixedly connected to the output ends of the two cylinder 1s, with both limiting blocks being tightly attached to the leather frame.

[0011] Preferably, the support assembly includes: a slide rail, symmetrically and fixedly connected to the top of the base plate; a support frame, two of which are slidably connected to the top of one of the slide rails; a second cylinder, symmetrically and fixedly connected to the top of the base plate; a fixing block, symmetrically disposed at the bottom of the two support frames, and the output ends of the two second cylinders are respectively fixedly connected to the two fixing blocks; and multiple stops, fixedly connected to the top of the two support frames.

[0012] Preferably, the clamping assembly includes: a fixing frame, symmetrically fixedly connected to both sides of the upper pressing frame, and four such fixing frames are provided; a cylinder three, fixedly connected to the bottom of each fixing frame; and a clamping block, fixedly connected to the output end of each cylinder three.

[0013] Preferably, the vacuum assembly includes: a fixed base, symmetrically arranged within the upper pressure frame, and multiple sets thereof; a limiting rod, arranged between each set of the fixed bases; and an air extraction hole, opened at the top of the upper pressure frame, wherein the upper pressure frame is connected to a vacuum pumping device.

[0014] Preferably, the vacuum assembly further includes a droop sensor, which is fixedly connected to the front surface of the upper pressure frame.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, the present invention provides a hot-pressing mold for cold and hot molds, which has the following beneficial effects:

[0017] This invention has the advantages of reducing the local stretching rate of the skin and lowering the skin stretching rate in the side forming area. In use, after the skin frame rises, the skin is manually hung and the mold is moved to the vacuum zone. Two sets of cylinders work in three stages, causing two sets of clamping blocks to clamp the two sides of the skin frame respectively. As the upper pressure frame rises, it undergoes heating treatment. After mold closing, the mold is moved to the skin hanging area, and the product is manually removed, completing the processing. This invention uses a non-circular skin frame to fix the skin, and the skin fixing frame is pre-deformed according to the U-shaped state after forming, thus reducing the skin stretching rate in the side forming area. Furthermore, the upper mold assists in adsorbing and fixing the skin, preventing it from sagging after heating. The lower mold has a similar structure to a conventional mold, with a central vacuum adsorption channel supplying vacuum adsorption force for lower mold forming, saving the investment and equipment modification costs of a special device with increased stroke / mold closing height. The estimated cost is around 800,000 yuan. The outer skin material can save some process overlap, improve material utilization, and increase the molding qualification rate of the part skin (especially the side with higher molding height). It solves the problem that existing automotive interior hot and cold mold hot pressing molds need to provide high stretching molding height and excessive stretching ratio when in use. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the internal structure of the vacuum component in this invention.

[0020] In the picture:

[0021] 1. Mold assembly; 11. Base plate; 12. Support base; 13. Mold; 14. Upper template; 15. Upper pressure frame;

[0022] 2. Positioning component; 21. Frame; 22. Cylinder 1; 23. Limit block;

[0023] 3. Support assembly; 31. Slide rail; 32. Support frame; 33. Cylinder II; 34. Fixing block; 35. Stop block;

[0024] 4. Clamping assembly; 41. Fixing frame; 42. Cylinder 3; 43. Clamping block;

[0025] 5. Vacuum assembly; 51. Fixing base; 52. Limiting rod; 53. Evacuation port; 54. Droop sensor;

[0026] 6. Drying oven. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Example 1

[0029] A hot and cold mold hot pressing mold includes a mold assembly 1; a positioning component 2 is provided on the top of the mold assembly 1, and support components 3 are symmetrically arranged on the top of the mold assembly 1. The positioning component 2 is located between the two sets of support components 3. A clamping component 4 is provided above the support components 3 and is installed on both sides of the mold assembly 1. A vacuum component 5 is provided inside the mold assembly 1, and an oven 6 is provided on one side of the mold assembly 1. The mold assembly 1 includes: a base plate 11, the top of which is fixedly connected to a support base 12; and a mold 13. The support base 12 is provided with multiple upper templates 14, which are located above the mold 13; the upper pressing frame 15 is fixedly connected to the bottom of the upper template 14; the positioning component 2 includes: a leather frame 21, which is located on the top of the support base 12; cylinders 22, which are symmetrically fixedly connected to the top of the support base 12; and limiting blocks 23, which are fixedly connected to the output ends of the two cylinders 22, and both limiting blocks 23 are tightly attached to the leather frame 21; the support component 3 includes: a slide rail 31, which is symmetrically fixedly connected to the base plate. 11 Top; Support frame 32, two support frames 32 are slidably connected to the top of one slide rail 31; Cylinder 2 33, symmetrically fixedly connected to the top of the base plate 11; Fixing block 34, symmetrically arranged at the bottom of the two support frames 32, and the output ends of the two cylinders 2 33 are respectively fixedly connected to the two fixing blocks 34; Stop block 35, fixedly connected to the top of the two support frames 32, and multiple stops are provided; The clamping assembly 4 includes: Fixing frame 41, symmetrically fixedly connected to both sides of the upper pressing frame 15, and four fixing frames are provided. The vacuum assembly 5 includes: a cylinder 42 fixedly connected to the bottom of each of the fixed frames 41; a clamping block 43 fixedly connected to the output end of each of the cylinders 42; the vacuum assembly 5 includes: a fixed seat 51 symmetrically arranged within the upper pressure frame 15, and multiple sets of such seats are provided; a limiting rod 52 arranged between each set of fixed seats 51; an air extraction hole 53 opened at the top of the upper pressure frame 15, and the upper pressure frame 15 is connected to a vacuum pump; the vacuum assembly 5 also includes: a droop sensor 54 fixedly connected to the front surface of the upper pressure frame 15.

[0030] See Figure 1-2In use, firstly, open both cylinders 22, causing their output ends to slide out and simultaneously push the two limit blocks 23 upwards. As the limit blocks 23 slide upwards, they also push the leather frame 21 upwards, driving the two cylinders 33 to retract simultaneously. This retracts the two fixed blocks 34, causing them to slide towards opposite faces. Simultaneously, the fixed blocks 34 slide, causing the two support frames 32 to slide on the two slide rails 31. This continues until both support frames 32 have slid to the bottom of the leather frame 31. Then, multiple stops 35 limit the leather frame 31. At this point, the two cylinders 22 retract, allowing the air to pass through... The product to be processed is hung on the leather frame 21 by manual hanging. Then, the base plate 11 and the entire device are moved to the vacuum zone. The upper template 14 and the upper pressure frame are slid downward by cylinder drive or servo motor drive until both sets of clamping blocks 43 have fallen to both sides of the leather frame 21. Then, the two sets of cylinders 42 are opened, so that the output end of the cylinders 42 extends and drives the clamping blocks 43 to slide towards the opposite side until the two sets of clamping blocks 43 clamp the two sides of the leather frame 21 respectively. Then, the upper template 14 and the upper pressure frame 15 slide upward by cylinder retraction or servo motor reversal. Multiple clamping blocks 43 drive the leather frame 21 to slide upwards until the upper template 14 and upper pressing frame 15 are lifted to the heating height. Then, two cylinders 33 extend and push two support blocks 32 to slide backwards through two fixing blocks 34 until they are reset. At this time, the inside of the lower pressing frame 15 is evacuated through the evacuation hole 53, creating a vacuum inside the lower pressing frame 15. This causes the skin on the leather frame 21 to adhere tightly to multiple limiting rods 52 through vacuum adsorption. Then, by opening the drive cylinder of the oven 6, the oven 6 pushes the heating channel to move below the leather frame 21. In the vacuum zone, the skin on the heating frame 21 is heated until heating is complete. Then, the oven 6 retracts, and the drive cylinders or servo motors on the upper template 14 and the upper pressing frame 15 drive the upper template 14 and the upper pressing frame 15 to slide downwards, so that the upper template 14 and the upper pressing frame 15 are closed with the mold 13. The vacuum conveying and pressure holding are carried out until the skin is adsorbed and formed. Then, multiple cylinders 42 retract simultaneously, and the upper template 14 and the upper pressing frame 15 rise and reset. The device is then moved from the vacuum zone to the skin hanging zone for manual removal. During processing, the drooping sensor 54 monitors the drooping of the skin, improving the practicality of the device.

[0031] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hot-pressing mold for cold and hot molding, characterized in that: The mold assembly includes a mold component (1); a positioning component (2) is provided on the top of the mold component (1), and support components (3) are symmetrically provided on the top of the mold component (1). The positioning component (2) is located between the two sets of support components (3). A clamping component (4) is provided above the support components (3). The clamping component (4) is installed on both sides of the mold component (1). A vacuum component (5) is provided inside the mold component (1), and an oven (6) is provided on one side of the mold component (1). The mold component (1) includes: The base plate (11) has a support base (12) fixedly connected to its top. Mold (13) is disposed on the top of the support base (12), and multiple molds are provided; The upper template (14) is positioned above the mold (13); The upper pressure frame (15) is fixedly connected to the bottom of the upper template (14); the positioning component (2) includes: A leather frame (21) is disposed on top of the support base (12); Cylinder 1 (22) is symmetrically and fixedly connected to the top of the support base (12); Limiting blocks (23) are fixedly connected to the output ends of the two cylinders (22), and both limiting blocks (23) are in close contact with the leather frame (21); the support assembly (3) includes: The slide rail (31) is symmetrically and fixedly connected to the top of the base plate (11); Support frame (32), two support frames (32) are slidably connected to the top of one of the slide rails (31); Cylinder 2 (33) is symmetrically fixed to the top of the base plate (11); Fixed blocks (34) are symmetrically arranged at the bottom of the two support frames (32), and the output ends of the two cylinders (33) are respectively fixedly connected to the two fixed blocks (34); Stops (35) are fixedly connected to the top of the two support frames (32), and multiple stops are provided; the clamping assembly (4) includes: The fixing brackets (41) are symmetrically fixed to both sides of the upper pressing frame (15), and four of them are provided; Cylinder three (42) is fixedly connected to the bottom of each of the aforementioned brackets (41); A clamping block (43) is fixedly connected to the output end of each of the three cylinders (42); the vacuum assembly (5) includes: Fixing bases (51) are symmetrically arranged within the upper pressing frame (15), and multiple sets are provided; A limiting rod (52) is provided between each set of fixed seats (51); An air extraction hole (53) is opened at the top of the upper pressure frame (15), and the upper pressure frame (15) is connected to a vacuum pump; a special-shaped leather frame is used to fix the skin, and the leather frame makes the skin pre-deformed according to the U-shaped state after molding, so that the skin stretch rate of the side molding area is reduced.

2. The hot pressing mold for cold and hot molds according to claim 1, characterized in that: The vacuum assembly (5) also includes: A droop sensor (54) is fixedly connected to the front surface of the upper pressure frame (15).

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