A device for installing a lower mold

Abstract

The present invention belongs to the technical field of automotive parts and provides a device for installing a lower mold, including a main support mold, a main drive mechanism, a side mold, a side drive mechanism, and a clamping mechanism. The main support mold fixes the lower mold, and the main drive mechanism drives the main support mold to rise, which in turn drives the lower mold to rise, and the skin fixed to the lower mold is attached to the vehicle interior frame to obtain the product to be edged; while the side mold is set at the corresponding position of the reserved edge, supporting the reserved edge, and the clamping mechanism and the side mold cooperate to clamp the reserved edge, and the side drive mechanism drives the side mold to rise relative to the main support mold, and wraps the reserved edge onto the product to be edged, thereby realizing automatic edge wrapping. In addition, the main support mold is placed on a pressure sensor, and the two rise and fall together. During the process of the skin being attached to the vehicle interior frame, the speed of the drive is controlled by the change in pressure to ensure that the skin is fully attached and not over-extended.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile parts, and particularly relates to a device for installing a lower mold. Background Art

[0002] Automotive interior components are part of the vehicle. While they have little impact on overall vehicle performance, they are visible and tangible to the user and have a significant impact. To enhance interior comfort and aesthetics, and even to cater to consumer tastes and needs, automakers are increasingly demanding the aesthetics of automotive interior components. A common aesthetic enhancement method involves applying a surface covering to the vehicle's interior frame. Large interior frames are hemmed using hemming equipment. However, smaller components, particularly those with irregular shapes and indentations, such as upper decorative panels, are typically hemmed manually to ensure a smooth and aesthetically pleasing surface. This is not only inefficient but also lacks quality assurance. Summary of the Invention

[0003] The present invention is made to solve the above-mentioned problem, and its purpose is to provide a device for installing a lower mold.

[0004] The present invention provides a device for installing a lower mold, wherein the lower mold is used to fix the skin, and the skin is used to wrap the vehicle interior frame, and has a covering part covering the lower mold and a reserved edge that does not cover the lower mold, and has the following characteristics: a main supporting mold, which matches the shape of the lower mold and is used to fix the lower mold; a main driving mechanism, which is used to drive the main supporting mold to rise, and then drive the lower mold to rise, so that the skin fixed on the lower mold is attached to the vehicle interior frame to obtain a product to be wrapped; a side mold, which is arranged at a corresponding position of the reserved edge and is used to support the reserved edge; a side driving mechanism, which is used to drive the side mold to rise and fall; a clamping mechanism, which is used to cooperate with the side mold to clamp the reserved edge and then wrap the reserved edge onto the product to be wrapped, wherein the main driving mechanism includes a screw, a driver connected to one end of the screw, and a pressure sensor arranged at the top of the screw, the main supporting mold is placed on the pressure sensor, and the driving motor drives the screw to drive the pressure sensor and the main supporting mold to rise and fall together.

[0005] The device for installing the lower mold provided by the present invention may also have the following features: wherein, the main driving mechanism also includes a support plate and a guide cylinder and a guide shaft located below the support plate, the guide shaft is fixed on the lower surface of the support plate, is sleeved in the guide cylinder and moves up and down in the guide cylinder, the support plate is placed on the pressure sensor, and the main support mold is placed on the support plate.

[0006] The device for installing the lower mold provided by the present invention may also have the following characteristics: wherein, the number of the guide cylinders and guide shafts is four, and the four guide shafts are respectively arranged at the four corners of the support plate.

[0007] The device for installing the lower mold provided by the present invention may also have the following features: wherein, the clamping mechanism includes a flip cylinder and a pneumatic clamp, and the pneumatic clamp is flipped to one side of the reserved edge under the drive of the flip cylinder, and clamps the reserved edge together with the side mold located on the other side of the reserved edge.

[0008] The device for installing the lower mold provided by the present invention may also have the following features: the pneumatic clamp rises together with the side mold to the reserved edge and is attached to the product to be edged. During the rising process, the gap between the pneumatic clamp and the side mold gradually increases. When the reserved edge is attached to the product to be edged, the gap width is greater than the thickness of the reserved edge.

[0009] The device for installing the lower mold provided by the present invention may also have such a feature, and also includes: a frame, wherein the driver is a servo motor, the side drive mechanism is a side drive cylinder, and the servo motor, the side drive cylinder and the flip cylinder are all arranged on the frame.

[0010] The device for installing the lower mold provided by the present invention may also have such features, including: a recessed edging portion, wherein the vehicle interior frame has a middle recessed portion, the recessed edging portion includes a recessed edging cylinder and a recessed edging piece, and the recessed edging cylinder drives the recessed edging piece to embed into the recessed portion to perform edging on the recessed portion.

[0011] The device for installing the lower mold provided by the present invention may also have the following features: the lower mold has multiple positioning pins, and the positions and shapes of the multiple positioning pins respectively match the multiple positioning holes on the skin, so as to fix the skin on the lower mold.

[0012] Functions and effects of the invention

[0013] The device for installing a lower mold provided by the present invention includes a main support mold, a main drive mechanism, a side mold, a side drive mechanism, and a clamping mechanism. The main support mold secures the lower mold, and the main drive mechanism drives the main support mold upward, which in turn drives the lower mold upward, attaching the skin fixed to the lower mold to the vehicle interior frame to obtain the product to be hemmed. The side mold is positioned at a corresponding position on the reserved edge, supporting the reserved edge. The clamping mechanism and the side mold cooperate to clamp the reserved edge. The side drive mechanism drives the side mold upward relative to the main support mold, wrapping the reserved edge around the product to be hemmed, thereby achieving automatic hemming. In addition, the main support mold is placed on a pressure sensor, and the two rise and fall together. During the process of attaching the skin to the vehicle interior frame, the speed of the drive is controlled by the change in pressure, thereby adjusting the pressure of the lower mold on the vehicle interior frame to an appropriate value, ensuring that the skin is attached completely without being overly squeezed. This device, in conjunction with an upper mold flipping device with a baking function, achieves automated hemming, improving work efficiency and hemming quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 Schematic diagram of the structure of the baking and welt compounding equipment in an embodiment of the present invention;

[0015] Figure 2 3. This is a diagram showing the upper mold in the flipping state of the baking and welt compounding equipment in the embodiment of the present invention;

[0016] Figure 3 is a schematic structural diagram of a flip drive mechanism in an embodiment of the present invention;

[0017] Figure 4 Schematic diagram of the installation structure of the special-shaped hot air heating unit in an embodiment of the present invention;

[0018] Figure 5 Schematic diagram of the installation structure of the special-shaped hot air heating unit and the special-shaped lamp tube heating unit in an embodiment of the present invention;

[0019] Figure 6 Schematic diagram of the installation structure of the temperature measuring unit in an embodiment of the present invention;

[0020] Figure 7 2 is a schematic structural diagram of a special-shaped hot air heating unit in an embodiment of the present invention;

[0021] Figure 8 2 is a schematic structural diagram of a heating portion of a special-shaped lamp tube in an embodiment of the present invention;

[0022] Figure 9 Schematic diagram of the heating area of ​​the product to be hemmed in an embodiment of the present invention;

[0023] Figure 10 1 is a schematic structural diagram of a lower mold mounting device in an embodiment of the present invention;

[0024] Figure 11 is a structural schematic diagram of the lower mold mounting device from another angle in an embodiment of the present invention;

[0025] Figure 12 This is a schematic diagram of the installation of the embodiment of the present invention after the epidermis is positioned by the positioning needle;

[0026] Figure 13 is a schematic diagram of a state where the skin is clamped in an embodiment of the present invention;

[0027] Figure 14 is a schematic structural diagram of the clamping mechanism in an embodiment of the present invention when it is opened;

[0028] Figure 15 is a schematic structural diagram of the clamping mechanism in an embodiment of the present invention when clamping; and

[0029] Figure 16It is a structural schematic diagram of the main support mold and the side mold when they are halfway raised in an embodiment of the present invention. DETAILED DESCRIPTION

[0030] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the device for installing the lower mold of the present invention is specifically described below in conjunction with embodiments and drawings.

[0031] <Example>

[0032] Figure 1 It is a structural schematic diagram of a baking and edge-welding composite device in an embodiment of the present invention.

[0033] like Figure 1 As shown, the baking and welt laminating device 1000 is used for baking and welting the frame of the vehicle interior trim. The working environment of the baking and welt laminating device 1000 is a constant temperature workshop at 25°C.

[0034] The baking and welt compounding device 1000 includes an upper mold turning device 100, a baking mechanism, a lower mold mounting device 300 and a control mechanism (not shown in the drawings). In this embodiment, an upper decorative panel, one of the interior frames of a vehicle, is used as an example for description.

[0035] The upper mold turning device 100 is used to install the upper mold. The upper mold's shape matches the vehicle interior frame, which snaps onto the upper mold. The vehicle interior frame has a recessed through-hole in the center, also known as a depression. Correspondingly, the upper mold also has a depression at the corresponding location. Typically, the depression is relatively small. In this embodiment, the depression is an irregular, narrow strip approximately 3 cm long, with a width gradually increasing from 0.5 cm to 1 cm.

[0036] The lower mold installation device 300 is used to install the lower mold, and the shape of the lower mold also matches the car interior frame. The lower mold is used to fix the skin that wraps the car interior frame, and the surface of the skin has been evenly sprayed with glue by the glue spraying equipment. The shape of the skin matches the car interior frame, and the skin has a covering part that covers the lower mold and a reserved edge that does not cover the lower mold. The width of the reserved edge is set according to the location where the edging is required so as to be able to preserve the edge of the car interior frame. In this embodiment, the width of the reserved edge is 1cm-2cm. The skin has a corresponding opening at the place corresponding to the recessed part, which is convenient for edging the recessed part. In this embodiment, the recessed part refers to the hand-picking part of the middle hole of the upper decorative panel.

[0037] When the lower mold assembly 300 rises and attaches the skin to the interior trim frame, the product to be hemmed is obtained. The baking mechanism bakes the product to be hemmed. The control mechanism is electrically connected to the upper mold flipping device, the lower mold assembly, and the baking mechanism to control them.

[0038] Figure 2 3. This is a diagram of the upper mold flipping state of the baking and welt composite equipment in an embodiment of the present invention.

[0039] like Figure 1 、 2 As shown, the upper mold turning device 100 includes a frame 101, a fixing mechanism 102 and a turning drive mechanism 103.

[0040] The frame 101 is placed on the ground. The fixing mechanism 102 includes a fixed frame 121 for securing the upper mold and a clamping unit. The clamping unit consists of four clamping cylinders 122, mounted on the fixed frame 121 and located around the upper mold to clamp different parts of the interior trim frame to which the skin is applied.

[0041] The fixed frame 121 is rotatably connected to the frame 101 via a rotating shaft. The flip drive mechanism 103 is installed on the frame 101, driving the fixed mechanism 102 to flip 0°-35° relative to the frame 101 around the rotating shaft, making it easier for workers to pick up and place the car interior frame and finished products.

[0042] Figure 3 2 is a schematic structural diagram of a flip drive mechanism in an embodiment of the present invention.

[0043] like Figure 3 As shown, the flip drive mechanism 103 includes a flip screw 131 , a flip drive member 132 , a reducer 133 , a synchronous pulley 134 , a synchronous belt 135 and a flip screw nut pair 136 .

[0044] The flip drive 132 is a servo motor fixed to the frame 101. The output end of the servo motor is connected to the reducer 133. The reducer 133 is connected to the flip screw 131 via a synchronous pulley 134, a synchronous belt 135, and a flip screw nut pair 136. This converts the rotational motion into the linear motion of the flip screw 131. Therefore, the flip drive drives the flip screw to move, thereby causing the fixed frame 121 to flip, and then causes the products to be hemmed or hemmed fixed to the fixed frame 121 to flip, making it easier to pick up and put away.

[0045] Figure 4 Schematic diagram of the installation structure of the special-shaped hot air heating unit in an embodiment of the present invention; Figure 5 Schematic diagram of the installation structure of the special-shaped hot air heating unit and the special-shaped lamp tube heating unit in an embodiment of the present invention; Figure 6 Schematic diagram of the installation structure of the temperature measuring unit in an embodiment of the present invention.

[0046] like Figure 2 、 4 As shown in FIG. 6 , the baking mechanism includes a special-shaped hot air heating portion 201 , a special-shaped lamp tube heating portion 202 and a temperature measuring portion 203 mounted on the fixed frame 121 .

[0047] The special-shaped hot air heating part 201 bakes the middle concave part A of the product to be edge-wrapped under the control of the control mechanism.

[0048] The special-shaped lamp tube heating part 202 bakes the reserved edge around the product to be edged under the control of the control mechanism.

[0049] The temperature measuring part 203 includes a plurality of temperature measuring elements, which are fixed on the fixed frame 121 and are distributed around the upper mold and next to the middle recessed part of the vehicle interior frame corresponding to the upper mold. They are used to measure the temperature of the product to be edged and feed the measured temperature back to the control mechanism. The control mechanism adjusts the power of the special-shaped hot air heating part 201 and the special-shaped lamp tube heating part 202 according to the real-time temperature to prevent excessive baking of the reserved edge, which would cause a decrease in the edge quality.

[0050] Figure 7 2 is a schematic structural diagram of a special-shaped hot air heating unit in an embodiment of the present invention.

[0051] like Figure 5 、 7 As shown, the special-shaped hot air heating unit 201 includes a hot air knife 211 and an air knife cylinder 212 that drives the hot air knife 211. The air knife cylinder 212 is mounted on the fixed frame 121. Under the control of the control mechanism, it drives the hot air knife 211 to descend to about 1 cm above the middle concave portion A of the product to be edged. The hot air blown by the hot air knife 211 bakes the middle concave portion A, heating the glue on the reserved edge there, so that the reserved edge can be well adhered to the vehicle interior frame.

[0052] Figure 8 It is a structural schematic diagram of the heating portion of the special-shaped lamp tube in an embodiment of the present invention.

[0053] like Figure 5 、 8 As shown, the special-shaped lamp tube heating unit 202 includes a special-shaped lamp tube 221 and a lamp tube cylinder 222 for driving the special-shaped lamp tube.

[0054] One side of the special-shaped lamp tube 221 is gold-plated, while the other side, which faces the reserved edge, is ungilded. The special-shaped lamp tube 221 is U-shaped, with a rounded transition at the bend. The shape of each special-shaped lamp tube 221 is determined by the shape of the product to be edged, the area to be heated. Multiple special-shaped lamp tubes 221 are arranged sequentially and distributed around the upper mold, allowing all sides of the product to be edged, fixed to the upper mold, to be heated. Due to the close arrangement of the two special-shaped lamp tubes 221, heat is radiated, so that the junction B, even where there are no lamp tubes, can be effectively heated.

[0055] Each special-shaped lamp tube 221 is driven by a lamp tube cylinder 222, which is installed on the fixed frame 121. Under the control of the control mechanism, the lamp tube cylinder 222 drives the special-shaped lamp tube 221 fixed thereto down to the four sides of the upper mold, that is, about 2cm-3cm away from the product to be edged. The heat emitted by the tungsten wire of the special-shaped lamp tube 221 radiates to the reserved edge at this location, heating both the surface and the car interior frame so that the reserved edge can be well adhered to the car interior frame.

[0056] Figure 9 Schematic diagram of the heating area of ​​the product to be hemmed in an embodiment of the present invention.

[0057] like Figure 9 As shown, the shaped lamp tube 221 heats the reserved edge C around the product to be edged, while the hot air knife 211 heats the recessed portion A. Temperature measuring elements at A and C monitor the temperature in real time and transmit the measured temperature to the control mechanism. The control mechanism adjusts the current of the heating elements of the shaped lamp tube 221 and the hot air knife 211 based on the temperature, thereby controlling their power and, in turn, the heating temperature.

[0058] Figure 10 1 is a schematic structural diagram of a lower mold mounting device in an embodiment of the present invention; Figure 11 is a structural schematic diagram of the lower mold mounting device from another angle in an embodiment of the present invention; Figure 12 This is a schematic diagram of the installation of the embodiment of the present invention after the epidermis is positioned by the positioning needle; Figure 13 is a schematic diagram of a state where the skin is clamped in an embodiment of the present invention; Figure 14 is a schematic structural diagram of the clamping mechanism in an embodiment of the present invention when it is opened; Figure 15 is a schematic structural diagram of the clamping mechanism in an embodiment of the present invention when clamping; Figure 16 It is a structural schematic diagram of the main support mold and the side mold when they are halfway raised in an embodiment of the present invention.

[0059] like Figure 10-16 As shown, the lower mold installation device 300 is used to install the lower mold 400, including a main support mold 301, a main drive mechanism 302, a side mold 303, a side drive mechanism 304, a clamping mechanism 305 and a recessed edging portion (not shown in the drawings).

[0060] The main support mold 301 matches the shape of the lower mold 400 and is used to fix the lower mold 400. The lower mold 400 has a plurality of positioning pins 401, and the shape and position of these positioning pins 401 match the plurality of positioning holes on the skin.

[0061] The main driving mechanism 302 includes a support plate 321 , a driver 322 , a screw rod 323 , a pressure sensor 324 , a guide cylinder 325 and a guide shaft 326 .

[0062] Driver 322 is a servo motor fixed to frame 101, located below the center of support plate 321. The motor's output is fixedly connected to screw rod 323, at the top of which is mounted a pressure sensor 324. Under the control of the control mechanism, driver 322 drives screw rod 323 upward or downward, thereby raising or lowering pressure sensor 324, support plate 321, and the main support mold 301, side mold 303, and clamping mechanism 305 mounted thereon.

[0063] Support plate 321 rests on pressure sensor 324, with main support mold 301, side mold 303, side drive mechanism 304, and clamping mechanism 305 mounted on its upper surface. Guide shafts 326 are fixed to the four corners of the lower surface of support plate 321 and are inserted into guide cylinders 325 fixed to frame 101, allowing them to move up and down within the cylinders.

[0064] After the lower mold 400 is installed with the main support mold 301, the skin is placed on the lower mold 400. The positioning pin 401 is driven by the cylinder fixed to it and extends into the positioning hole to stretch the skin on the lower mold 400. The clamping mechanism 305 is activated to clamp the reserved edge.

[0065] When the driver 322 drives the support plate 321 upward, the main support mold 301, the side mold 303, the lower mold 400, and the skin rise together until the skin contacts the unflipped upper mold. The skin is then attached to the interior trim frame, resulting in the finished product. The positioning pins 401 retract, facilitating the side mold 303 to hem the product. During this process, the pressure changes at the pressure sensor 324 indicate the pressure changes throughout the process, thereby controlling the force with which the skin adheres to the interior trim frame.

[0066] The side molds 303 are arranged around the main support mold 301 and can be seamlessly fitted with the main support mold 301 , corresponding to the reserved edges and supporting the reserved edges from below.

[0067] The side driving mechanism 304 is a cylinder, which drives the side mold 303 to rise and fall relative to the main supporting mold 301 under the control of the control mechanism.

[0068] The clamping mechanism 305 includes a plurality of flip cylinders 351 and pneumatic clamps 352 fixed on the flip cylinders 351 .

[0069] When the flip cylinder 351 is inactive, the pneumatic clamp 352 is positioned above the edge of the pre-stitched edge. When the flip cylinder 351 is activated, the pneumatic clamp 352 moves above the edge of the pre-stitched edge and, in conjunction with the side mold 303, clamps the edge of the pre-stitched edge. Initially, the gap between the pneumatic clamp 352 and the side mold 303 is smaller than the thickness of the pre-stitched edge. When the main drive mechanism 302 stops rising, the side mold 303 and the pneumatic clamp 352 continue to rise. However, driven by the flip cylinder 351, the pneumatic clamp 352 slowly tilts outward, causing the gap between the pneumatic clamp 352 and the side mold 303 to gradually increase during the ascent. When the pre-stitched edge is attached to the product to be hemmed, the gap is wider than the thickness of the pre-stitched edge. This entire process simulates manual hemming.

[0070] After the hemming is complete on all sides, the driver 322 drives the support plate 321 down a certain height, causing the main support mold 301, the side mold 303, and the tilting cylinder 351 to descend synchronously. At this point, the recessed hemming section, mounted on the fixed frame 121, begins to operate. The recessed hemming section comprises a recessed hemming cylinder and a recessed hemming member fixed to its output end. The recessed hemming member is located below the recessed portion, its shape matching the recessed portion. Driven by the recessed cylinder, it is embedded in the recessed portion and rises upward, allowing the reserved edge here to be pressed against the perimeter of the recessed portion through compression. The recessed hemming member then exits the recessed portion, completing the hemming process and resulting in a fully hemmed product.

[0071] The method of using the baking and welt compounding equipment 1000 is as follows:

[0072] First, the fixed frame 121 of the upper mold flipping device 100 is flipped to a certain angle. The operator then installs the car interior frame onto the fixed frame 121. The fixed frame 121 is then flipped back to its unflipped state, and the four clamping cylinders further secure the car interior frame. The lower mold 400 and the skin are then secured. The lower mold and skin are raised, and the four clamping cylinders return to their original positions. The skin is then attached to the surface of the car interior frame, resulting in the product to be edged. The four clamping cylinders then operate to clamp the product to be edged. The baking mechanism then descends, and baking begins. Once baking is complete, the baking mechanism returns to its original position. The side mold 303 continues to rise, wrapping the reserved edges around the product to be edged. The side mold 303 descends, and the recessed edge wrapping section begins to operate, wrapping the reserved edges in the recessed portion. All mechanisms return to their original positions, the fixed frame 121 flips outward, and the operator removes the product, completing the process.

[0073] Functions and Effects of the Embodiments

[0074] The baking and edge-welding composite equipment provided in this embodiment includes an upper mold turning device, a baking mechanism and a lower mold mounting device, wherein the upper mold turning device and the baking mechanism constitute an upper mold turning device with a baking function. The functions and effects of each device are described below.

[0075] The upper mold flipping device provided in this embodiment comprises a frame, a fixing mechanism, and a flipping drive mechanism. The fixing mechanism's fixed frame is rotatably connected to the frame via a rotating shaft. Thus, the flipping drive mechanism drives the fixing mechanism to flip relative to the frame about the rotating shaft, causing the upper mold fixed to the fixed frame to flip accordingly. This allows the interior trim frame to be easily removed from or installed on the upper mold.

[0076] In the upper mold flipping device of this embodiment, the flipping drive is a servo motor. The output end of the servo motor is connected to the reducer. The reducer is connected to the flipping screw through a synchronous pulley, a synchronous belt and a flipping screw nut pair, so that the rotational motion is converted into the linear motion of the flipping screw. As the flipping screw rises, the fixed frame is flipped upward. The structure is simple and easy to operate.

[0077] In the upper mold turning device of this embodiment, the four clamping cylinders located around the upper mold, together with the fixed frame, are used to clamp and fix the product to be edged or the car interior frame.

[0078] In the upper mold turning device of this embodiment, the turning angle of the fixed frame is 0°-35°, which is the most convenient for the operator to take and place objects from the upper mold.

[0079] This embodiment also provides an upper mold flipping device with a baking function, comprising the upper mold flipping device and baking mechanism provided in this embodiment. The upper mold flipping device secures and flips the upper mold, while the baking mechanism bakes the product to be edged, which is fixed to the upper mold. The baking mechanism includes a special-shaped hot air heating unit and a special-shaped lamp heating unit. The special-shaped hot air heating unit bakes the central concave portion of the product to be edged, while the special-shaped lamp heating unit bakes the perimeter of the product to be edged, achieving complete baking of the edged area and heating the glue on the reserved edge, ensuring that the reserved edge is properly adhered to the vehicle interior frame.

[0080] In the upper mold flipping device with baking function provided in the embodiment, when heating is required, the lamp cylinder, under the control of the control mechanism, drives the special-shaped lamp to the corresponding position of the reserved edge of the product to be edged. After heating is completed, the special-shaped lamp is removed without affecting other operations. Furthermore, one side of the special-shaped lamp is gold-plated, while the other side, which is unplated, faces the reserved edge, 2-3 cm away from the reserved edge. Heat energy is reflected from the gold-plated layer to the reserved edge, achieving energy conservation and high efficiency. Furthermore, the hot air knife, driven by the air knife cylinder, heats the recessed portion in the center that is difficult to heat.

[0081] In the upper mold flipping device with baking function provided in the embodiment, multiple temperature measuring elements are fixed on a fixed frame and dispersed at the positions where the products to be edged need to be edged, so as to measure the temperature of the products to be edged, and the control mechanism is electrically connected to the temperature measuring elements, the special-shaped lamp tubes and the hot air knife. According to the measured temperature, the control mechanism adjusts the heating temperature of the special-shaped lamp tubes and the hot air knife to realize intelligent temperature control of the heating process.

[0082] This embodiment also provides a device for installing a lower mold, also known as a lower mold installation device. This device is used to install the lower mold, which is used to secure the skin. The lower mold installation device includes a main support mold, a main drive mechanism, a side mold, a side drive mechanism, and a clamping mechanism. The main support mold secures the lower mold. The main drive mechanism drives the main support mold upward, which in turn drives the lower mold upward, attaching the skin secured to the lower mold to the vehicle interior frame, resulting in the product to be hemmed. The side mold is positioned corresponding to the reserved edge, supporting the reserved edge. The clamping mechanism and the side mold cooperate to clamp the reserved edge. The side drive mechanism drives the side mold upward relative to the main support mold, wrapping the reserved edge around the product to be hemmed, achieving automatic hemming. Furthermore, the main support mold is placed on a pressure sensor, and the two rise and fall together. As the skin is attached to the vehicle interior frame, the speed of the drive is controlled by the pressure change, thereby adjusting the pressure of the lower mold on the vehicle interior frame to an appropriate value, ensuring that the skin is fully attached without being overly squeezed.

[0083] In the device for installing the lower mold provided in this embodiment, the main drive mechanism also includes a support plate and a guide cylinder and a guide shaft under the support plate, so that the position of the support plate and the main support mold and side mold thereon does not change during the rising or falling process, and the operation is smooth, so that the skin can be attached to the predetermined position of the vehicle interior frame, and the skin will not be skewed due to displacement during the rising process.

[0084] In the device for installing the lower mold provided in this embodiment, the gap between the pneumatic clamp and the side mold gradually increases during the rising process. When the reserved edge is attached to the product to be edged, the gap width is greater than the thickness of the reserved edge, simulating manual edge wrapping and improving edge wrapping quality.

[0085] In the device for installing the lower mold provided in this embodiment, the recessed edging cylinder drives the recessed edging piece to embed into the recessed part to perform edging on the recessed part, which effectively solves the problem of edging smaller recessed parts.

[0086] The baking and edge-binding composite equipment provided in this embodiment has an upper mold turning device to install an upper mold, and the upper mold is used to fix the vehicle interior frame; a lower mold installing device to install a lower mold, and the lower mold fixes the skin; under the control of the control mechanism, the lower mold rises to stick the skin to the vehicle interior frame to obtain a product to be edge-banded; the baking mechanism bakes the product to be edge-banded under the control of the control mechanism, and then the side mold tire and the clamping mechanism of the lower mold installing device bandage the reserved edge to complete the removal of the product. The entire process and edge banding and baking are integrated, which is convenient and fast, and improves work efficiency.

[0087] The above embodiments are preferred examples of the present invention and are not intended to limit the scope of protection of the present invention.

Claims

1. A device for installing a lower mold, wherein the lower mold is used to fix a skin, and the skin is used to wrap the frame of a vehicle interior, and has a covering portion covering the lower mold and a reserved edge not covering the lower mold, characterized in that: include: A main supporting mold, matching the shape of the lower mold and used to fix the lower mold; A main driving mechanism is used to drive the main supporting mold to rise, thereby driving the lower mold to rise, so as to stick the skin fixed on the lower mold to the vehicle interior frame to obtain the product to be hemmed; A side mold is provided at a corresponding position of the reserved edge and is used to support the reserved edge; A side driving mechanism, used for driving the side mold to rise and fall; The clamping mechanism is used to cooperate with the edge mold to clamp the reserved edge, and then wrap the reserved edge onto the product to be wrapped. The main driving mechanism includes a screw, a driver connected to one end of the screw, and a pressure sensor arranged at the top of the screw. The main support mold is placed on the pressure sensor. The driver drives the screw to drive the pressure sensor and the main support mold to rise and fall together. During the process of fitting the skin to the interior frame, the speed of the driver is controlled by the change of pressure, and the pressure of the lower die on the interior frame is adjusted to the appropriate value to ensure that the skin fits perfectly without being over-extruded. The clamping mechanism includes a flip cylinder and a pneumatic clamp. The pneumatic clamp is driven by the flip cylinder to flip to one side of the reserved edge and clamps the reserved edge together with the side mold located on the other side of the reserved edge. When initially clamped, the gap between the pneumatic clamp and the side mold is smaller than the thickness of the reserved edge. When the main drive mechanism stops rising, the pneumatic clamp and the side mold continue to rise, but the pneumatic clamp slowly turns outward under the drive of the turning cylinder, so that the gap between the pneumatic clamp and the side mold gradually increases during the rising process. When the reserved edge is attached to the product to be edged, the gap width is greater than the thickness of the reserved edge. The main driving mechanism further comprises a support plate, the support plate is placed on the pressure sensor, and the main supporting mold is placed on the support plate.

2. The device for installing the lower mold according to claim 1, characterized in that: in, The main driving mechanism further comprises a guide cylinder and a guide shaft located below the support plate. The guide shaft is fixed on the lower surface of the support plate, is sleeved in the guide cylinder and moves up and down in the guide cylinder.

3. The device for installing the lower mold according to claim 2, characterized in that: in, The number of the guide cylinders and the guide shafts is four, and the four guide shafts are respectively arranged at the four corners of the support plate.

4. The device for installing the lower mold according to claim 1, characterized in that Also includes: frame, Wherein, the driver is a servo motor, the side drive mechanism is a side drive cylinder, and the servo motor, the side drive cylinder and the flip cylinder are all arranged on the frame.

5. The device for installing a lower mold according to claim 1, characterized in that: Also includes: Concave hemming, Wherein, the vehicle interior frame has a middle concave part, The recessed edging portion includes a recessed edging cylinder and a recessed edging piece. The recessed edging cylinder drives the recessed edging piece to embed into the recessed portion so as to perform edging on the recessed portion.

6. The device for installing a lower mold according to claim 1, characterized in that: in, The lower mold has a plurality of positioning pins, and the positions and shapes of the plurality of positioning pins respectively match the plurality of positioning holes on the skin, so as to fix the skin on the lower mold.

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