A hot sheet material laying device

Abstract

This invention discloses a hot sheet material laying device, including a mounting frame. A clamping device is provided on the mounting frame to hold one edge of a hot sheet material falling from above the mounting frame. A laying device is also provided on the mounting frame, capable of moving away from the clamping device to spread the hot sheet material. A driving device is also included to move the laying device. The initial position of the laying device in contact with the hot sheet material extends beyond the clamping device and is located on the back side of the hot sheet material. Using this structure, the laying device fixes one side of the hot sheet material with the clamping device and spreads the hot sheet material through the laying device, enabling the back side of the hot sheet material to face upwards. The process is automated, reducing labor intensity, improving production efficiency, and increasing the degree of automation.

Description

Technical Field

[0001] This invention relates to automotive interior manufacturing equipment, specifically to a sheet-laying device that lays hot sheets into a molding machine after the sheets have been baked. Background Technology

[0002] Currently, in automotive headliner and carpet molding production lines, sheets such as fiberglass boards, hemp boards, and felt boards are baked in an oven and then laid on molding dies for molding. The heated sheets are either lifted and laid on the dies by multiple people, or the sheets are picked up by a nailing mechanism, baked in an oven, and then directly sent to the dies for molding. Due to the large width and variety of specifications of the materials, the nailing mechanism has difficulty meeting the diverse width variations. In addition, in order to avoid interference between the nailing mechanism and the dies, presses, etc., the scrap material of the sheets must be increased, resulting in a large amount of material waste and high manufacturing costs. Summary of the Invention

[0003] To address the problems of low automation and high labor intensity in existing technologies, the technical solution adopted in this invention is as follows:

[0004] A hot sheet material laying device includes a mounting frame, on which a clamping device is provided for clamping one edge of a hot sheet material falling from above the mounting frame, and a laying device is also provided on the mounting frame for laying the hot sheet material by moving away from the clamping device. The device also includes a driving device for driving the laying device to move, and the initial position of the contact part between the laying device and the hot sheet material is located beyond the clamping device on the back side of the hot sheet material.

[0005] Furthermore, the clamping device is slidably mounted on the mounting frame. When the spreading device spreads the hot sheet, the hot sheet can drive the clamping device to move, and when the spreading device returns, it can drive the clamping device back to the initial position. It also includes a limiting device that restricts the movement distance of the clamping device when spreading the hot sheet.

[0006] Furthermore, the limiting device includes a height-adjustable frame, on which a stop is provided.

[0007] Furthermore, the mounting bracket is adjustable in height.

[0008] Furthermore, the spreading device includes a pair of sliding plates mounted on a mounting frame, the sliding plates being connected to a drive device, and a spreading roller between the sliding plates for spreading the hot sheet material in contact with the hot sheet material, the spreading roller being able to rotate freely.

[0009] Furthermore, the spreading roller includes a rotating shaft and a squirrel cage disposed on the outer ring of the rotating shaft.

[0010] Furthermore, the clamping device includes a movable plate and a fixed plate, and also includes a clamping cylinder for driving the movable plate and the fixed plate to move closer or separate.

[0011] Furthermore, a set of rivets is provided on the movable plate or fixed plate, and rivet holes for rivet insertion are provided on the movable plate or fixed plate where the rivets are not provided.

[0012] Furthermore, the driving device includes a motor and a chain transmission mechanism, the material spreading device is mounted on the chain transmission mechanism, and the motor drives the chain transmission mechanism to move the material spreading device.

[0013] Furthermore, it also includes a drop plate located above the mounting frame, along which the hot sheet can slide down into the clamping device in its initial position.

[0014] Furthermore, the mounting frame is provided with a slide rail for the clamping device and the material spreading device to slide.

[0015] The material laying device with this structure fixes one side of the hot sheet through the clamping device, and the material laying device drives the hot sheet to unfold and lay it. It can also turn the back of the hot sheet to face up. The process is automated, reducing labor intensity, improving production efficiency, and increasing the degree of automation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the material spreading equipment.

[0017] Figure 2 A schematic diagram showing the initial position of the material spreading equipment;

[0018] Figure 3 This is a schematic diagram showing the material spreading status of the material spreading equipment;

[0019] Figure 4 This is a schematic diagram of the clamping device structure;

[0020] Figure 5 This is a schematic diagram of the material spreading device. Detailed Implementation

[0021] like Figure 1 The material spreading equipment shown includes a mounting frame 1, which includes two longitudinal beams positioned on either side of the mold in the molding equipment to avoid interference with mold closing. A clamping device 2 and a material spreading device 3 are mounted on the longitudinal beams. A drop plate 4 is also provided above the mounting frame. In this embodiment, the drop plate 4 is mounted on the material spreading device. Depending on the actual situation, the drop plate 4 can also be mounted on a heating device that connects to the material spreading device. Therefore, the drop plate 4 is installed as an optional component. The heated sheet material slides down onto the clamping device 2 from the drop plate 4. The equipment also includes a drive device 5 capable of driving the material spreading device 3 to move along the longitudinal beams. Figure 2 As shown, when the hot sheet falls along the blanking plate 4, one edge of the hot sheet falls into the clamping device 2. The clamping device 2 clamps one edge of the hot sheet, while the part of the spreading device 3 that contacts the hot sheet and subsequently drives the hot sheet to unfold is higher than the clamping device 2 and, in its initial position, can pass over the clamping device 2 and be placed on the back side a of the hot sheet. Figure 3 As shown, after one side of the hot sheet A is clamped by the clamping device 2, the driving device 5 drives the spreading device 3 to move along the longitudinal beam. Under the drive of the spreading device 3, the hot sheet is unfolded and laid flat to cover the mold. During the laying process, the spreading device 3 drives the back of the hot sheet to fold and then pushes it to unfold so that the back is facing up. During this process, the spreading device has a certain traction on the hot sheet, so that the hot sheet can be kept flat. At the same time, some hot sheets are coated with adhesive on the front to prevent the front from sticking together. After the spreading is completed, the spreading device 3 moves to the far end of the longitudinal beam or returns to the initial position to make room for the molding equipment to close the mold.

[0022] To accommodate different mold heights, the mounting frame can be raised and lowered, such as... Figure 1 The device is provided with a base 6, on which a lifting cylinder 7 is provided. Guide grooves 8 are provided on both sides of the base 6 to provide guidance for the mounting frame. When the cylinder drives the mounting frame to lift, the guide frames 1-2 placed in the guide grooves 8 on the mounting frame can move along the guide grooves 8, thereby enabling the mounting frame to lift stably.

[0023] To minimize waste and reduce scrap material loss, the edge of the hot sheet is positioned as close as possible to the mold edge, allowing the clamping device 2 to move along the longitudinal beam. Specifically, the clamping device 2 is slidably mounted on the longitudinal beam. When the spreading device 3 moves and spreads the hot sheet under the drive of the drive device 5, a certain traction force acts on the clamping device 2 during the spreading process, causing it to move along with the material. To prevent the clamping device 2 from moving above the mold in the molding equipment and affecting mold closing, and to minimize scrap material generation by keeping the clamping device 2 close to the mold edge, a limiting device 9 is also installed in the spreading device to restrict the position of the clamping device. The limiting device 9 can be mounted on the mounting frame to prevent the clamping device 2 from continuing to move along the longitudinal beam. If mounted inside the longitudinal beam, it can block the bottom edge of the clamping device 2. Since the spreading part of the spreading device 3 is higher than the clamping device 2, it will not interfere with the movement of the spreading device 3. Alternatively, a similar device can be used... Figure 1The height-adjustable limiting device 9 shown includes a height-adjustable frame 9-1 with a stop 9-2 on it. The frame 9-1 is raised or lowered by a lifting cylinder 9-3, thus preventing the stop 9-2 from advancing. A hanging bracket can also be added to the frame to fix the edges of the hot sheet during the laying process, thus securing the edges of the hot sheet. For hot sheets requiring stretching, stretching can be achieved during molding. The height adjustment of the frame 9-1 is also to accommodate different mold heights; the frame 9-1 must be larger than the mold size to ensure it is positioned outside the mold and avoids affecting mold closing.

[0024] like Figure 4 In the illustrated embodiment, the device includes a clamping device 2 with a movable plate 2-1, a fixed plate 2-2, and a clamping cylinder 2-5. The clamping cylinder 2-5 drives the movable plate 2-1 to move towards the fixed plate 2-2, clamping the hot sheet material between the movable plate 2-1 and the fixed plate 2-2. To better fix the hot sheet material, tie rods 2-3 are provided on the movable plate 2-1 or the fixed plate 2-2. Conversely, tie rod holes 2-4 are provided on the movable plate 2-1 or the fixed plate 2-2 without tie rods 2-3 for the tie rods 2-3 to be inserted. When the movable plate 2-1 and the fixed plate 2-2 are close together, the tie rods 2-3 can pierce the hot sheet material, thereby achieving a more secure fixation and preventing the hot sheet material from detaching from the clamping device during the spreading process, thus affecting the spreading effect. To ensure the hot sheet material can detach smoothly from the clamping device 2, the movable plate 2-1 is located away from the molding equipment, and the tie rods 2-3 are installed on the movable plate 2-1. The fixed plate 2-2 is located closer to the molding equipment, with the tie rod holes on the fixed plate 2-2. When the spreading device 3 lays the hot sheet material flat, the clamping device 2 releases the hot sheet material. This allows the clamping device 2 to return to its initial position as the spreading device 3 returns to its initial position. When the movable plate 2-1 and fixed plate 2-2 are open, the hot sheet material can easily detach from the tie rods on the clamping device 2. When the clamping cylinder 2-5 drives the movable plate 2-1 and fixed plate 2-2 to close and clamp, sensors such as photoelectric switches can be used to detect whether material enters between the movable plate 2-1 and fixed plate 2-2. If material is detected between the movable plate 2-1 and fixed plate 2-2, the clamping cylinder 2-5 automatically starts to clamp and fix the edge of the hot sheet material. Alternatively, the clamping action can be controlled by a switch or button, allowing the worker to observe and judge the action.

[0025] like Figure 5The material spreading device 3 shown includes a pair of sliding plates 3-1 respectively mounted on each longitudinal beam 1-1. A spreading roller 3-2 is positioned between the sliding plates 3-1 and is rotatable. The sliding plates 3-1 extend towards the clamping device 2 at a certain height, and the spreading roller 3-2 is positioned at this extension. Thus, when the sliding plates 3-1 of the spreading device 3 abut against the clamping device 2, the spreading roller 3-2 can pass over the clamping device 2 and be positioned on the back of the hot sheet, thereby driving the hot sheet to spread out for the spreading operation. The rotating nature of the spreading roller 3-2 also prevents scratching the hot sheet and affecting the finished product quality. During the spreading process, the spreading roller 3-2 rotates due to the friction of the hot sheet, reducing resistance and simultaneously driving the hot sheet to turn over while avoiding scratching its surface. To facilitate turning over the smooth surface of the hot sheet, the spreading roller 3-2 is configured as follows... Figure 5 The rotating shaft 3-21 and the cage 3-22 placed outside the rotating shaft are shown. During material laying, the rotating shaft 3-21 drives the cage 3-22 to rotate. The uneven surface of the cage 3-22 provides a more effective way to flip the hot sheet, allowing the back of the hot sheet to flip smoothly upwards. When the four sides of the material need to be hung on the hooks of the material frame during the material laying process, the cage 3-22 can also press the material edge onto the material frame. The hooks on the feeding frame can be inserted into the gaps of the cage 3-22, allowing the hooks to penetrate deeper into the edge of the hot sheet.

[0026] To ensure smoother sliding of the clamping device 2 and the material spreading device 3 on the longitudinal beam and to provide limiting and guiding properties, such as... Figure 1 As shown, a slide rail is provided on the longitudinal beam, and the slide plate 3-1 is placed on the slide rail. Both ends of the clamping device 2 are also placed on the slide rail. This allows the material spreading device 3 to drive the clamping device 2 back to its initial position along the slide rail via the slide plate 3-1 during the return stroke. Of course, it is not necessary for both ends of the clamping device 2 and the slide plate 3-1 to be placed in the same slide rail for the material spreading device 3 to drive the clamping device back to its initial position. As long as there is some local interference between the material spreading device 3 and the clamping device 2, the material spreading device 3 can still drive the clamping device 2 back to its initial position during the return stroke. Therefore, two different slide rails can also be provided on the longitudinal beam 1-1 to guide the clamping device 2 and the material spreading device 3 respectively.

[0027] The drive unit 5 in the device includes a motor 5-1 and a chain transmission mechanism 5-2. The motor 5-1 is used to drive the chain transmission mechanism 5-2 to operate. The slide plate 3-1 is fixedly connected to the chain in the chain transmission mechanism 5-2. The slide plate 3-1 is driven to move along the slide rail by the chain. Of course, in addition to this drive unit, the material spreading device 3 can be driven to move by a linear drive unit such as a belt or a cylinder. More embodiments will not be listed here.

Claims

1. A hot sheet material laying device, comprising a mounting frame (1), characterized in that: The mounting frame (1) is provided with a clamping device (2) that can clamp one edge of the hot sheet falling from above the mounting frame (1). The mounting frame (1) is also provided with a spreading device (3) that can move away from the clamping device (2) to spread the hot sheet. The mounting frame (1) also includes a driving device (5) that drives the spreading device (3) to move. The initial position of the spreading device (3) in contact with the hot sheet is beyond the clamping device (2) and located on the back of the hot sheet. The clamping device (2) is slidably mounted on the mounting frame (1). When the spreading device (3) spreads the hot sheet, the hot sheet can drive the clamping device (2) to move. When the spreading device (3) returns, it can drive the clamping device (2) back to the initial position. It also includes a limiting device (9) that limits the moving distance of the clamping device (2) when spreading the hot sheet. The material spreading device (3) includes a pair of slide plates (3-1) mounted on the mounting frame (1). The slide plates (3-1) are connected to the drive device (5). A spreading roller (3-2) is provided between the slide plates (3-1) to spread the hot sheet material. The spreading roller (3-2) is able to rotate freely.

2. The hot sheet material laying equipment according to claim 1, characterized in that: The limiting device (9) includes a lifting frame (9-1) and a stop (9-2) is provided on the frame (9-1).

3. The hot sheet material laying equipment according to claim 1, characterized in that: The mounting bracket (1) is capable of being raised and lowered.

4. The hot sheet material laying equipment according to claim 1, characterized in that: The spreading roller (3-2) includes a rotating shaft (3-21) and a squirrel cage (3-22) disposed on the outer ring of the rotating shaft.

5. The hot sheet material laying equipment according to claim 1, characterized in that: The clamping device (2) includes a movable plate (2-1) and a fixed plate (2-2), and also includes a clamping cylinder (2-5) for driving the movable plate (2-1) and the fixed plate (2-2) to move closer or separate.

6. The hot sheet material laying equipment according to claim 5, characterized in that: A set of rivets (2-3) is provided on the movable plate (2-1) or the fixed plate (2-2), and rivet holes (2-4) for inserting the rivets (2-3) are provided on the movable plate or the fixed plate where the rivets (2-3) are not provided.

7. The hot sheet material laying equipment according to claim 1, characterized in that: The driving device (5) includes a motor (5-1) and a chain transmission mechanism (5-2). The material spreading device (3) is mounted on the chain transmission mechanism (5-2). The motor (5-1) drives the chain transmission mechanism (5-2) to move the material spreading device (3).

8. The hot sheet material laying equipment according to claim 1, characterized in that: It also includes a drop plate (4) located above the mounting frame (1), and the hot sheet can slide down along the drop plate (4) into the clamping device (2) in the initial position.

9. The hot sheet material laying equipment according to claim 1, characterized in that: The mounting frame (1) is provided with a slide for the clamping device (2) and the spreading device (3) to slide.

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