Automobile door panel infrared type press-fit in-mold alignment equipment
By introducing laser positioning components and vacuum holes into the production of automotive door panels, precise in-mold positioning has been achieved, solving the problem of positioning relying on manual experience in existing technologies, improving production efficiency and product quality, and meeting the needs of high-efficiency production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-04
- Publication Date
- 2026-03-10
AI Technical Summary
Existing positioning mechanisms rely on manual experience, resulting in low production efficiency and unstable product quality. In particular, during the sewing process of automotive door panels, the in-mold alignment accuracy is insufficient, affecting the production cycle and product appearance quality.
It adopts a structure including laser positioning components, upper mold positioning suction cup, positioning pin components and vacuum holes, combined with infrared laser positioning lamps and auxiliary positioning push blocks to achieve precise in-mold positioning, reduce manual pre-wrapping, and ensure real-time monitoring and control of the line position by controlling the heating time and adjusting the mold precision through PLC.
It achieves high-precision in-mold alignment and pressing of automotive door panel edge stitching, improving production efficiency, ensuring product quality and appearance consistency, shortening the production cycle, and reducing manual intervention time.
Smart Images

Figure CN223982184U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the production technology field of automotive interior trim parts, and in particular to an infrared type press bonding die in-die alignment equipment for an automotive door panel. BACKGROUND
[0002] In the hot-pressing composite process with edge stitching, the positioning mechanism plays a crucial role in production efficiency and product quality. The existing positioning mechanism usually relies only on personal experience and implementation under specific conditions, and sets fixed tools, thereby affecting the appearance quality. In addition, the long manual positioning time increases the production rhythm. Therefore, there is an urgent need for a die in-die alignment system that can adjust the accuracy of the die in-die alignment position according to the state of the part edge stitching in the die, to meet the demand for optimization of daily production rhythm. SUMMARY
[0003] The utility model technical scheme is as follows,
[0004] An infrared type press bonding die in-die alignment equipment for an automotive door panel, comprising an upper die assembly, a heating assembly, and a lower die assembly. The upper die assembly includes an upper die, a plurality of laser positioning assemblies, and a plurality of upper die positioning suction cups. The lower die assembly includes a lower die and a positioning needle assembly. The lower die is evenly distributed with a plurality of vacuum holes. The heating assembly is arranged between the upper die assembly and the lower die assembly.
[0005] Further, the laser positioning assembly has seven.
[0006] Further, the upper die positioning suction cup has six.
[0007] Further, the positioning needle assembly has one.
[0008] Further, the lower die assembly side is also provided with a composite side pushing assembly.
[0009] The utility model has the beneficial effects that:
[0010] The utility model can more accurately complete the die in-die alignment and press bonding process of edge stitching skin, can realize one-step positioning in the die and does not need manual pre-coating, ensures higher product quality and process control mode. The structure of the edge stitching die mainly includes a roller positioning groove, an infrared laser positioning lamp, an auxiliary positioning push block, a step-by-step vacuum profiling die, a positioning needle, and other structure groups. Through the structure of the utility model, one-step positioning in the die and manual pre-coating are achieved. The system adjusts the die in-die alignment time in real time according to the production rhythm, shortens the production cycle, improves the production efficiency, accurately controls the alignment position through real-time monitoring of the precision of the part surface and the die in-die alignment, ensures the product quality, reduces the working hours of personnel pre-coating, and saves personnel. BRIEF DESCRIPTION OF DRAWINGS
[0011] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0012] Figure 2 This is a schematic diagram of the upper mold assembly of this utility model.
[0013] Figure 3 This is a schematic diagram of the lower mold assembly of this utility model.
[0014] Figure 4 This is a schematic diagram of the product of this utility model being fixed on the lower mold.
[0015] Figure 5 for Figure 4 Enlarged view of a specific area.
[0016] Figure 6 This is a product illustration.
[0017] In the picture:
[0018] 1 Upper mold assembly, 2 Heating assembly, 3 Lower mold assembly, 4 Product, 101 Laser positioning assembly, 102 Upper mold, 103 Upper mold positioning suction cup, 301 Lower mold, 302 Positioning pin assembly, 303 Composite side push assembly, 401 Roller positioning groove. Detailed Implementation
[0019] It should be noted that in the description of this utility model, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation.
[0020] In this utility model, unless otherwise explicitly specified and limited, the terms "setting," "installing," "connecting," and "joining" should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; a connection can be a mechanical connection or an electrical connection; a joint can be a direct connection or an indirect connection through an intermediate medium, and can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0021] This invention achieves precise positioning by using a structure consisting of a roller positioning groove, an infrared laser positioning light, an auxiliary positioning push block, a step-by-step vacuum contouring mold, and positioning pins.
[0022] The operator first places the skeleton onto the upper mold 101. The outer skin is then fixed to the positioning pins 302 through the positioning holes around the perimeter. Next, the rollers in the seam of the outer skin are roughly positioned into the roller positioning grooves of the lower mold. The vacuum suction stage 1 of the lower mold is activated to ensure the outer skin does not shift. Based on the laser line emitted by the upper mold laser positioning component 101 (illuminating the outer skin), the outer skin is precisely positioned twice to accurately adjust its position. After adjustment, the vacuum suction stage 2 of the lower mold is activated. The equipment is started, the heating component advances to the heating position, and the infrared lamps heat the skeleton and outer skin. After heating, it returns to its original position, and the upper mold component moves downwards to perform product lamination and subsequent edging. This method effectively solves problems such as uneven stitching during manual pre-wrapping, reduces pre-wrapping time, improves product qualification rate, and ensures the high-quality appearance requirements of automotive interior products.
[0023] An infrared-type pressing mold for automotive door panels includes an upper mold assembly 1, a heating assembly 2, and a lower mold assembly 3.
[0024] The upper mold assembly 1 includes an upper mold 101, multiple laser positioning components 102 and multiple upper mold positioning suction cups 103. The product 4 is attached to the upper mold 101 by the upper mold positioning suction cups 103.
[0025] The upper mold assembly is connected and fixed on a standard composite device, and is driven by the device to move up and down reciprocatingly.
[0026] The lower mold assembly 3 includes a lower mold 301, a positioning pin assembly 302, and a composite side push assembly 303. Multiple vacuum holes are evenly distributed on the lower mold 301. The skin corresponding to the product 4 is adsorbed onto the lower mold 301 through the positioning pins and vacuum holes.
[0027] Product 4 includes a skeleton and an outer skin.
[0028] The heating component 2 is disposed between the upper mold component 1 and the lower mold component 3. The heating component 2 can heat the skeleton and skin of the product 4. Then the upper mold 101 and the lower mold 301 come close together to make the skeleton and skin combine.
[0029] Heating component 2 uses PLC to control the heating time to activate the adhesive on the skin and skeleton, thereby ensuring that the adhesive is activated during the bonding process and meets the bonding conditions.
[0030] Upper and lower molds: The dimensional accuracy of the upper and lower mold surfaces reaches ±0.2mm. The upper mold 101 is equipped with an upper mold positioning suction cup 103, and the covering skeleton 5 is adsorbed onto the upper mold 101. The equipment cannot move if the sensor does not detect the part. The lower mold 301 is equipped with vacuum holes to adsorb the skin onto the lower mold 301, and is equipped with a positioning hanging component 302 and an infrared laser positioning light to ensure accurate positioning.
[0031] Heating system: Heating is achieved using gold-plated infrared heating lamps, with the heating temperature adjustable between 20℃ and 460℃, and the surface temperature of the parts can be controlled within ±5℃.
[0032] Alignment Model: Through repeated experiments, the correspondence between the piping lines of the parts and the mold is collected, and the alignment position and stability are adjusted.
[0033] Cycle time optimization: Based on external customer needs and internal management requirements, the desired in-mold production cycle time is given.
[0034] Roller strips are added to the seams of the outer skin on both sides of the piping.
[0035] The structure of the piping sewing mold mainly consists of roller positioning groove, infrared laser positioning light, auxiliary positioning push block, distributed vacuum contouring mold, and positioning needle light structure.
[0036] The above structure achieves the goal of positioning in one part of the mold without the need for pre-wrapping.
[0037] This intelligent temperature control system is applied in the hot-pressing composite process, and the specific steps are as follows:
[0038] The outer skin is laid on the lower mold according to the positioning pins and infrared laser positioning lights; the skeleton is placed on the upper mold by vacuum adsorption; the heating tube heats; the flanging cylinder acts to flanging; after pressure holding and molding, the operator takes out the product; the above process should ensure that the alignment accuracy can reach the theoretical position.
[0039] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any modifications, equivalent substitutions, and improvements made by those skilled in the art within the scope of the technology disclosed in this utility model, and within the spirit and principles of this utility model, should be included within the protection scope of this utility model. Furthermore, all content not described in detail in this specification belongs to the prior art known to those skilled in the art.
[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
Claims
1. An automotive door panel infrared press-fit in-mold alignment apparatus, characterized by, Comprise: The upper die assembly, heating assembly and lower die assembly, the upper die assembly comprises an upper die, a plurality of laser positioning assemblies and a plurality of upper die positioning suction cups, the lower die assembly comprises a lower die and a positioning needle assembly, a plurality of vacuum holes are uniformly distributed on the lower die, and the heating assembly is arranged between the upper die assembly and the lower die assembly.
2. The infrared in-mold registration assembly for automotive door panel press forming according to claim 1, wherein, The laser positioning assembly has seven.
3. The in-mold aligning equipment for infrared press-fit of an automobile door panel according to claim 1, characterized in that, The upper die positioning suction cup has six.
4. The in-mold infrared register assembly for a door panel of an automobile as defined in claim 1, wherein, The positioning needle assembly has one.
5. The in-mold infrared register assembly for a door panel of an automobile as defined in claim 1, wherein, The lower die assembly is also provided with a composite side pushing assembly on one side.