Heat insulation device for hot pressing die

Abstract

The invention relates to a thermal insulation device for a hot pressing die. The thermal insulation device comprises a guide seat, a shielding plate and a power device, the guide seat is fixedly arranged on the lower die, a shielding plate is arranged in the guide seat in a sliding mode, one end of the shielding plate extends to the position above a product positioning reference and shields the product positioning reference when a product is heated, and the other end of the shielding plate extends to the power device in the direction away from the product and is used for driving the shielding plate to be away from the product positioning reference. The shielding plate is connected to the mold through the guide base, the situation that the shielding plate is separated or falls off in the mold opening and closing process, and consequently the shielding plate is lost, mold parts are damaged or operation equipment breaks down is avoided, the shielding plate is driven by the power device to be separated from a mold forming area in the mold closing process, an operator does not need to manually take the shielding plate any more, and the working efficiency is improved. The burden of operators and the operation carelessness are reduced; and meanwhile, the operation safety is improved.

Description

[Technical Field]

[0001] This invention relates to the field of hot pressing mold technology, and in particular to a heat insulation device for hot pressing molds. [Background Technology]

[0002] In the product manufacturing process, there are usually multiple processes. The product is transferred between these processes to ensure consistency in processing. One or more features are usually set as the benchmark for positioning.

[0003] Hot pressing is a molding process for products made from sheet or plate materials. The raw material is heated to a specified temperature and then pressed into shape using a mold. However, the heating process can deform features that serve as positioning references, causing them to lose their positioning function. Therefore, these features need to be protected during heating. Typically, a small shielding plate is used to cover the feature and is directly clamped with screws to prevent direct exposure to the heating environment. After heating, the small shielding plate needs to be manually removed by the operator, exposing them to safety hazards. Furthermore, the small shielding plate is easily lost or falls into the mold or equipment due to operator negligence, causing damage or malfunction. [Summary of the Invention]

[0004] The technical problem to be solved by the present invention is: In the hot pressing process, in order to avoid deformation of the feature used as the positioning reference during the heating process, a small shielding sheet is used to cover the feature used as the positioning reference. However, the small shielding sheet needs to be manually removed by the operator, which exposes the operator to safety hazards. Moreover, the small shielding sheet is easily lost or falls into the mold or equipment due to the operator's negligence, causing damage or failure of the mold or equipment.

[0005] The solution to the technical problem of this invention is: a heat insulation device for hot pressing molds, used to shield the product positioning reference in the mold, including a guide seat, a shielding plate and a power device;

[0006] The guide seat is fixedly installed on the lower mold, and the shielding plate is slidably installed inside the guide seat. One end of the shielding plate extends above the product positioning reference and blocks the product positioning reference when the product is heated. The other end extends away from the product to the power device to drive the shielding plate away from the product positioning reference.

[0007] Preferably, the power device includes a limiting guide groove and a lever. The limiting guide groove is disposed on the shielding plate, and the position of the lever corresponds to the position of the limiting guide groove. One end of the lever is fixedly disposed on the upper mold, and the other end extends toward the lower mold. The other end is provided with a first guiding slope. When the mold is closed, the first guiding slope pushes the limiting guide groove, causing the shielding plate to move away from the product positioning reference.

[0008] Preferably, the lower mold is further provided with a limiting post, which extends into the limiting guide groove to limit the displacement distance of the shielding plate and prevent it from detaching from the guide seat.

[0009] Preferably, the limiting guide groove is provided with a second guide slope, and when the mold is closed, the shielding plate is pushed away from the product positioning reference by the guidance of the second guide slope.

[0010] Preferably, the lower mold is further fixedly provided with a support base, the support base including a pulley, the central axis of the pulley being fixedly connected to the support base, and the circumferential surface of the pulley being slidably connected to the shielding plate.

[0011] Preferably, the shielding plate has a right-angle limiting feature, which is used to limit the displacement distance of the shielding plate in the product direction.

[0012] Preferably, the power unit includes a cylinder assembly and a connector. The cylinder assembly is fixedly mounted on the lower mold. The connector is fixedly mounted on the movable end of the cylinder assembly, and the connector is fixedly connected to the end of the shielding plate away from the product. The cylinder assembly actively pushes the shielding plate to cover the product positioning reference or pulls the shielding plate away from the product positioning reference.

[0013] The beneficial effects of this invention are that the shielding plate is connected to the mold through the guide seat, which prevents the shielding plate from detaching or falling off during the opening and closing of the mold, thus avoiding the loss of the shielding plate, damage to mold parts, or failure of the operating equipment. Furthermore, during the mold closing process, the shielding plate is guided by a lever to move it away from the mold forming area, forming a semi-automatic operation. This eliminates the need for operators to manually pick up the shielding plate, reducing the burden on operators and the chance of operational errors, while increasing operational safety. [Attached Image Description]

[0014] Figure 1 This is a schematic diagram of the characteristic structure of the positioning reference in the raw material sheet.

[0015] Figure 2 This is a schematic diagram of the cross-sectional structure of a hot press mold.

[0016] Figure 3 This is a schematic diagram of the support base, guide base, and shielding plate structure.

[0017] Figure 4 This is a schematic diagram of the cylinder assembly, guide seat, and shielding plate.

Detailed Implementation Methods

[0018] To further illustrate the technical means and effects of the present invention, the following detailed description is provided in conjunction with the embodiments of the present invention and their accompanying drawings.

[0019] like Figure 1 As shown, in this embodiment, the raw material is carbon fiber board. In order to transfer between various processes and ensure the consistency of processing, a long slot 100 is set as a positioning reference.

[0020] like Figure 2 As shown, the present invention provides a heat insulation device for hot pressing molds, including an upper mold 200 and a lower mold 300; the lower mold 300 is fixedly provided with a guide seat 302, and a shielding plate 303 is slidably disposed inside the guide seat 302. The shielding plate 303 is restricted by the structure of the guide seat 302 to slide only in the direction of the product or away from the product. A support seat 301 is provided on the side of the guide seat 302 away from the product. The support seat 301 is fixedly disposed on the lower mold 300, and the shielding plate 303 slides in contact with the support seat 301. The support seat 301 provides support force for the shielding plate 303 to prevent vibration or swaying when the shielding plate 303 slides.

[0021] like Figure 2 and Figure 3 As shown, when the implementation of this invention requires a semi-automatic operation configuration due to hardware limitations and operational needs related to changes in heating parameters of the production-supporting heating or pressing equipment, the power unit 500 includes a lever 201, which is fixedly mounted on the upper mold 200. The end of the lever 201 near the lower mold 300 is provided with a first guide slope 202 inclined towards the product. The shielding plate 303 includes a limiting guide groove 305, which is provided with a second guide slope 307. When the mold closes, the first guide slope 202 pushes the second guide slope 307, causing the shielding plate 303 to move away from the product positioning reference. The lower mold 300 is also fixedly provided with a limiting post 304, one end of which extends into the limiting guide groove 305. When the shielding plate 303 slides towards the support seat 301, the limiting post 304 limits the displacement distance of the shielding plate 303.

[0022] like Figure 3 As shown, the shielding plate 303 is provided with a right-angle limit 308. When the shielding plate 303 slides towards the product direction, the right-angle limit 308 contacts the guide seat 302 to limit the displacement of the shielding plate 303, so as to prevent the shielding plate 303 from exceeding the required shielding range or falling off the guide seat 302. The support seat 301 includes a pulley 306. The central axis of the pulley 306 is fixedly set on the support seat 301. The circumferential surface of the pulley 306 can rotate freely and slide in contact with the shielding plate 303, so that the sliding process of the shielding plate 303 remains smooth and without obvious resistance.

[0023] like Figure 4As shown, when the implementation of this invention requires an automated operation configuration due to hardware limitations and operational needs related to changes in heating parameters of the production-supporting heating or pressing equipment, the power unit 500 includes a cylinder assembly 400. The cylinder assembly 400 is fixed to the lower mold 300. A connector 401 is fixedly provided at the movable end of the cylinder assembly 400, and the connector 401 is fixedly connected to the end of the shielding plate 303 away from the product. This enables the cylinder assembly 400 to actively push the shielding plate 303 to cover the product positioning reference or pull the shielding plate 303 away from the product positioning reference.

[0024] The working process of this invention is as follows: In the semi-automatic operation configuration, the operator places the carbon fiber board in the mold with the long slot 100 as the reference and pushes the shielding plate 303 toward the carbon fiber board until the long slot 100 is blocked by the shielding plate 303. Then, the equipment is started to heat the carbon fiber board. After the carbon fiber board is heated, the mold automatically closes. During the closing process, the upper mold 200 presses down, causing the lever 201 fixedly set on the upper mold 200 to pass through the limiting guide groove 305 and contact the shielding plate 303. The first guide slope 202 pushes the second guide slope 307, causing the shielding plate 303 to move toward the support. The seat 301 slides away from the shielded area, and finally the mold is completely closed to form the carbon fiber board. In the automatic operation configuration, the operator places the carbon fiber board in the mold with the long slot 100 as the reference and then starts the equipment. The movable end of the cylinder assembly 400 pushes out, driving the shielding plate 303 to slide towards the long slot 100 of the carbon fiber board until the long slot 100 is shielded by the shielding plate 303. Then the equipment automatically starts to heat the carbon fiber board. After the carbon fiber board is heated, the movable end of the cylinder assembly 400 retracts and pulls the shielding plate 303 away from the carbon fiber board back to its original position. Then the mold automatically closes to complete the carbon fiber board forming.

[0025] The guide seat 302 connects the shielding plate 303 to the lower mold 300 and restricts the sliding direction of the shielding plate 303; the power unit 500 restricts the sliding distance of the shielding plate 303 to prevent the shielding plate 303 from detaching or falling off during the mold opening and closing process, and drives the shielding plate 303 away from the mold forming area to achieve semi-automatic or automatic operation, so that the operator no longer needs to manually pick up the shielding parts, thereby avoiding the loss of shielding parts, detachment or falling of shielding parts, which may cause malfunctions or damage to mold parts or operating equipment, reducing the operator's burden and the chance of operational errors while increasing the safety of operation.

[0026] It should be noted that the present invention is not limited to the above embodiments. Any simple modifications, equivalent changes and alterations made by those skilled in the art to the above embodiments based on the technical solutions of the present invention shall fall within the protection scope of the present invention.

Claims

1. A heat insulation device for a hot press mold, used to shield the product positioning reference in the mold, characterized in that, Includes guide seat, shielding plate and power unit; The guide seat is fixedly installed on the lower mold, and the shielding plate is slidably installed inside the guide seat. One end of the shielding plate extends above the product positioning reference and blocks the product positioning reference when the product is heated. The other end extends away from the product to the power device to drive the shielding plate away from the product positioning reference.

2. The heat insulation device for hot pressing molds as described in claim 1, characterized in that: The power unit includes a limiting guide groove and a lever. The limiting guide groove is disposed on the shielding plate. The position of the lever corresponds to the position of the limiting guide groove. One end of the lever is fixedly disposed on the upper mold, and the other end extends toward the lower mold. The other end is provided with a first guiding slope. When the mold is closed, the first guiding slope pushes the limiting guide groove, causing the shielding plate to move away from the product positioning reference.

3. The heat insulation device for hot pressing molds as described in claim 2, characterized in that: The lower mold is also fixedly provided with a limiting post, which extends into the limiting guide groove to limit the displacement distance of the shielding plate and prevent it from detaching from the guide seat.

4. A heat insulation device for hot pressing molds as described in claim 2, characterized in that: The limiting guide groove is provided with a second guide slope. When the mold is closed, the shielding plate is pushed away from the product positioning reference by the guidance of the second guide slope.

5. A heat insulation device for hot pressing molds as described in claim 1, characterized in that: The lower mold is also fixedly provided with a support base, the support base including a pulley, the central axis of the pulley is fixedly connected to the support base, and the circumferential surface of the pulley is slidably connected to the shielding plate.

6. The heat insulation device for hot pressing molds as described in claim 1, characterized in that: The shielding plate has a right-angle limiting feature, which is used to limit the displacement distance of the shielding plate in the product direction.

7. A heat insulation device for hot pressing molds as described in claim 1, characterized in that: The power unit includes a cylinder assembly and a connector. The cylinder assembly is fixedly mounted on the lower mold. The connector is fixedly mounted on the movable end of the cylinder assembly, and the connector is fixedly connected to the end of the shielding plate away from the product. The cylinder assembly actively pushes the shielding plate to cover the product positioning reference or pulls the shielding plate away from the product positioning reference.

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