Device for coating hot melt glue on surfaces of automotive upholstery

Abstract

The utility model discloses an automotive upholstery surface hot melt glue coating device which comprises a workbench, a glue coating mechanism, a conveying mechanism and an adjusting device, the glue coating mechanism is installed above the workbench, the conveying mechanism is installed on the workbench, and the conveying mechanism and the glue coating mechanism are matched to form a glue coating area; the adjusting device is installed on the workbench and connected and matched with the conveying mechanism. The adjusting device is suitable for driving the conveying mechanism to conduct lifting adjustment so that the gluing area can adapt to products with different thicknesses. The device has the beneficial effects that the adjusting device can drive the conveying mechanism to perform lifting adjustment, so that the distance between the conveying mechanism and the gluing mechanism can be changed, that is, the gluing area can be adjusted to adapt to products with different thicknesses, and the flexibility and convenience of the device are greatly improved.

Description

Technical Field

[0001] This application relates to the field of adhesive coating equipment technology, and in particular to a hot melt adhesive coating device for automotive interior parts. Background Technology

[0002] As a key component affecting airbag deployment, the airbag cover's design must not only meet functional requirements but also harmonize with the overall appearance of the steering wheel. Modern airbag covers are typically made of high-strength plastic materials, such as polypropylene (PP) or polycarbonate (PC), which offer excellent impact resistance and durability.

[0003] To achieve a better aesthetic appearance and tactile feel, current airbag covers are often covered with a layer of leather. However, this leather requires adhesive application before application, necessitating the use of an adhesive applicator. Existing adhesive applicators can only apply adhesive to automotive interior parts of a single thickness, leading to inconvenience. Therefore, this paper proposes a hot melt adhesive coating device for automotive interior parts to solve the aforementioned technical problems. Utility Model Content

[0004] One of the objectives of this application is to provide a device for applying hot melt adhesive to the surface of automotive interior parts.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: a hot melt adhesive coating device for automotive interior parts, comprising a worktable, an adhesive coating mechanism, a conveying mechanism, and an adjusting device. The adhesive coating mechanism is installed above the worktable, the conveying mechanism is installed on the worktable and cooperates with the adhesive coating mechanism to form an adhesive coating area, and the adjusting device is installed on the worktable and connected to the conveying mechanism. The adjusting device is adapted to drive the conveying mechanism to perform lifting and lowering adjustments so that the adhesive coating area can accommodate products of different thicknesses.

[0006] Preferably, the conveying mechanism includes a conveying roller, a driving device, and a support frame. The support frame is horizontally rotatably mounted on the worktable and connected to the adjusting device. The conveying roller is horizontally rotatably mounted on the support frame and cooperates with the gluing mechanism to form the gluing area. The driving device is mounted on the support frame and its output end is connected to the conveying roller. During adjustment, the adjusting device is adapted to drive the support frame to rotate along the worktable, thereby realizing the lifting and lowering adjustment of the conveying roller.

[0007] Preferably, the adjusting device includes a telescopic component, which is hinged to the worktable, and the piston end of the telescopic component is hinged to the support frame.

[0008] Preferably, the adjusting device further includes a baffle and a lead screw. The baffle is vertically slidably mounted on the worktable, and the lead screw is vertically rotatably mounted on the worktable and cooperates with the baffle. During adjustment, the lead screw is rotated to drive the baffle to adjust its height. The support frame is adapted to rotate until it abuts against the baffle to achieve limiting and locking of the conveying roller.

[0009] Preferably, the adjustment device further includes a throttle and a transmission assembly. The throttle is vertically rotatably mounted on the worktable and connected to the lead screw through the transmission assembly. The throttle is adapted to drive the lead screw to rotate through the transmission assembly.

[0010] Preferably, the glue coating mechanism includes a glue chamber, a glue coating roller, and a pair of limiting rollers. The glue chamber is installed above the worktable. The glue coating roller is rotatably installed at the discharge port at the bottom of the glue chamber, and the glue coating roller cooperates with the conveying roller to form the glue coating area. The limiting rollers are symmetrically installed on both sides of the bottom of the glue chamber with the glue coating roller as the center and cooperate with the glue coating roller.

[0011] Preferably, the glue application mechanism further includes a second lead screw and a frame, wherein one of the limiting rollers is rotatably mounted on the frame, the frame is horizontally slidably mounted on the glue chamber, and the second lead screw is horizontally rotatably mounted on the glue chamber and cooperates with the frame; rotating the second lead screw drives the limiting roller to move horizontally, thereby adjusting the material feeding gap between the limiting roller and the glue application roller.

[0012] Preferably, the glue application mechanism further includes a knob and a transmission component. The knob is vertically rotatably mounted on the side of the glue chamber via a rotating shaft and connected to the second lead screw via the transmission component. The knob is adapted to drive the second lead screw to rotate via the transmission component.

[0013] Preferably, the baffle includes an integrally formed horizontal section and a vertical section that are perpendicular to each other. The horizontal section cooperates with the support frame, and the vertical section cooperates with the lead screw.

[0014] Preferably, the hot melt adhesive coating device for automotive interior parts further includes a material plate; during adhesive application, leather products are adapted to be adhered to the material plate, thereby achieving the conveying of the leather products.

[0015] Compared with the prior art, the beneficial effects of this application are as follows:

[0016] This invention incorporates an adjustment device that drives the conveying mechanism to adjust its height, thereby changing the distance between the conveying mechanism and the coating mechanism. This allows the coating area to be adjusted to accommodate products of different thicknesses, greatly improving the flexibility and convenience of the device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a partial structural schematic diagram of the present invention.

[0019] Figure 3 For the present utility model Figure 2 A cross-sectional structural diagram.

[0020] Figure 4 For the present utility model Figure 3 A schematic diagram of a local structure.

[0021] Figure 5 This is a schematic diagram of the adjusting device and conveying mechanism of this utility model.

[0022] Figure 6 For the present utility model Figure 5 A cross-sectional structural diagram.

[0023] Figure 7 This is a schematic diagram of the disassembled adjustment device and conveying mechanism of this utility model.

[0024] Figure 8 This is a schematic diagram of the adhesive application mechanism of this utility model.

[0025] In the diagram: 1. Workbench; 2. Glue application mechanism; 201. Glue application roller; 202. Glue chamber; 203. Limiting roller; 204. Frame; 205. Lead screw two; 206. Transmission component; 207. Knob; 3. Conveying mechanism; 301. Conveying roller; 302. Drive device; 303. Support frame; 4. Adjusting device; 401. Telescopic component; 402. Baffle; 403. Lead screw one; 404. Turn handle; 405. Transmission assembly; 5. Material plate. Detailed Implementation

[0026] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0027] In the description of this application, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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. They should not be construed as limiting the specific protection scope of this application.

[0028] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0029] One preferred embodiment of this application, such as Figures 1 to 8 As shown, a hot melt adhesive coating device for automotive interior parts includes a worktable 1, an adhesive coating mechanism 2, a conveying mechanism 3, and an adjusting device 4. The adhesive coating mechanism 2 is installed above the worktable 1, the conveying mechanism 3 is installed on the worktable 1 and cooperates with the adhesive coating mechanism 2 to form an adhesive coating area, and the adjusting device 4 is installed on the worktable 1 and connected to the conveying mechanism 3.

[0030] Understandably, during the gluing process, the product is placed on the workbench 1, and the conveying mechanism 3 transports the product. During this transport, the gluing mechanism 2 applies the glue to the product. When adjustments are needed, the adjusting device 4 can drive the conveying mechanism 3 to rise and fall, thus changing the distance between the conveying mechanism 3 and the gluing mechanism 2. This allows the gluing area to be adjusted to accommodate products of different thicknesses, greatly improving the flexibility and convenience of the device.

[0031] This application does not specifically limit the structure of the conveying mechanism 3, but the following specific embodiment is provided for reference:

[0032] like Figure 6 As shown, the conveying mechanism 3 includes a conveying roller 301, a driving device 302, and a support frame 303. The support frame 303 is horizontally rotatably mounted on the worktable 1 and connected to the adjusting device 4. The conveying roller 301 is horizontally rotatably mounted on the support frame 303 and cooperates with the gluing mechanism 2 to form a gluing area. The driving device 302 is mounted on the support frame 303 and its output end is connected to the conveying roller 301.

[0033] Understandably, during conveying, the drive unit 302 can drive the conveyor roller 301 to rotate, thus conveying the product on the conveyor roller 301 under the action of friction. The drive unit 302 is preferably a motor. Of course, to reduce stress concentration on the support frame 303, such as... Figure 5 As shown, the conveyor roller 301 and the motor can be installed separately, and the two can be connected by belt drive (or chain drive).

[0034] During adjustment, the adjustment device 4 can drive the support frame 303 to rotate along the worktable 1, and the rotating support frame 303 can drive the conveying roller 301 to be adjusted up and down in order to accommodate products of different thicknesses.

[0035] In this embodiment, as Figure 6 and Figure 7 As shown, the adjusting device 4 includes a telescopic member 401, which is hinged to the worktable 1. The piston end of the telescopic member 401 is hinged to the support frame 303. It is understood that when the telescopic member 401 extends or retracts, it drives the support frame 303 to rotate and adjust. The specific structure and working principle of the telescopic member 401 are well-known to those skilled in the art and will not be described in detail here. Common telescopic members 401 include hydraulic cylinders, pneumatic cylinders, and linear motors, etc., which can be selected by those skilled in the art according to actual needs.

[0036] Based on the above embodiments, there may be problems with inaccurate adjustment during adjustment. Especially for multiple products with similar thickness dimensions, it is not accurate enough to adjust by only the micro-extension of the telescopic component 401. Moreover, we know that the telescopic component 401 is hinged, which means that the support and limiting effect on the support frame 303 is not good enough.

[0037] To address the aforementioned technical problems, this embodiment has undergone further optimization: such as... Figure 6 As shown, the adjustment device 4 also includes a baffle 402 and a lead screw 403. The baffle 402 is vertically slidably mounted on the worktable 1, and the lead screw 403 is vertically rotatably mounted on the worktable 1 and cooperates with the baffle 402.

[0038] Understandably, during adjustment, first rotate the lead screw 403, which will drive the baffle 402 to adjust up and down until it reaches the appropriate height. Then, use the telescopic component 401 to rotate the support frame 303 upwards until it abuts against the baffle 402. The top of the support frame 303 is limited by the baffle 402, while its bottom is limited and supported by the telescopic component 401. This further improves the stable positioning and locking of the adjusted conveyor roller 301. On the other hand, we know that the lead screw adjustment has high precision, which can indirectly achieve fine-tuning and limiting of the height of the conveyor roller 301, thereby greatly improving the accuracy of adjusting the coating area.

[0039] Specifically, the baffle 402 can adopt an "L" shaped structure, that is, the baffle 402 includes an integrally formed horizontal section and a vertical section that are perpendicular to each other. The horizontal section cooperates with the support frame 303, while the vertical section cooperates with the lead screw 403.

[0040] Furthermore, to make it easier for operators to rotate the lead screw 403, the adjustment device 4 also includes a throttle 404 and a transmission assembly 405. The throttle 404 is vertically rotatably mounted at a suitable position on the workbench 1 (i.e., a position convenient for operators to operate). The throttle 404 is connected to the lead screw 403 through the transmission assembly 405 (e.g., belt drive or chain drive), so that operators can rotate the lead screw 403 from a convenient position.

[0041] In one embodiment of this application, such as Figure 8 As shown, the glue coating mechanism 2 includes a glue chamber 202, a glue coating roller 201, and a pair of limiting rollers 203. The glue chamber 202 can be installed above the workbench 1 by a fixing frame. The glue coating roller 201 is rotatably installed at the bottom of the glue chamber 202 at the feed port, and the glue coating roller 201 cooperates with the conveying roller 301 to form a glue coating area. The limiting rollers 203 are symmetrically installed on both sides of the bottom of the glue chamber 202 with the glue coating roller 201 as the center and cooperate with the glue coating roller 201.

[0042] Understandably, the molten glue can be kept warm in the glue chamber 202 by heating components (such as heating wires or heating rods), while the conveyor roller 301 can rotate under the drive of a motor, thereby carrying out the glue at the discharge port and coating it onto the product.

[0043] Specifically, such as Figure 8As shown, there is a gap between the glue application roller 201 and the right limit roller 203. This gap represents the amount of glue applied. In order to achieve the adjustability of this amount of glue applied, the glue application mechanism 2 also includes a second lead screw 205 and a frame 204. One of the (i.e. the right) limit rollers 203 is rotatably mounted on the frame 204. The frame 204 is horizontally slidably mounted on the glue chamber 202. The second lead screw 205 is horizontally rotatably mounted on the glue chamber 202 and cooperates with the frame 204.

[0044] Understandably, when the operator rotates the second lead screw 205, the lead screw 205 moves the frame 204, which in turn moves the limit roller 203 horizontally. This allows adjustment of the material feeding gap between the limit roller 203 and the glue application roller 201, thus controlling the amount of glue applied. To facilitate rotation of the second lead screw 205 as well (similar to the first lead screw 403), the glue application mechanism 2 also includes a knob 207 and a transmission component 206. The knob 207 is vertically mounted on the side of the glue chamber 202 via a rotating shaft and is connected to the second lead screw 205 via the transmission component 206 (e.g., a bevel gear transmission structure). Understandably, the knob 207, through the cooperation of the rotating shaft and the transmission component 206, drives the second lead screw 205 to rotate, thereby adjusting the material feeding gap.

[0045] The working principle of this utility model is as follows:

[0046] This application uses leather gluing as an example for illustration. To facilitate the positioning of the leather for gluing, the back side (i.e., the non-glued side) of the leather can be adhered to the material plate 5 before gluing. The thickness of the material plate 5 is a fixed value; therefore, the sum of the thicknesses of the material plate 5 and the leather is the thickness of the product. The thickness of the gluing area is adjusted according to this thickness, specifically as follows: Figure 4 As shown, the distance D between the gluing roller 201 and the conveying roller 301 is adjusted by means of the adjusting device 4; then the material feeding gap is adjusted according to the leather. During gluing, the worker pushes the material plate 5 along one side of the workbench 1 until one end is inserted between the gluing roller 201 and the conveying roller 301. The relative movement between the two rollers and the friction force allow the material plate 5 to move through and perform the gluing operation. After gluing, the material plate 5 falls to the other side, where the worker can then remove it.

[0047] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. A device for applying hot melt adhesive to the surface of automotive interior parts, characterized in that, include: Workbench; An adhesive application mechanism is installed above the workbench; A conveying mechanism is installed on the workbench and cooperates with the gluing mechanism to form a gluing area; as well as An adjustment device is installed on the worktable and connected to the conveying mechanism; the adjustment device is adapted to drive the conveying mechanism to adjust its height so that the coating area can accommodate products of different thicknesses.

2. The hot melt adhesive coating device for automotive interior parts as described in claim 1, characterized in that: The conveying mechanism includes a conveying roller, a driving device, and a support frame. The support frame is horizontally rotatably mounted on the worktable and connected to the adjusting device. The conveying roller is horizontally rotatably mounted on the support frame and cooperates with the glue coating mechanism to form the glue coating area. The driving device is mounted on the support frame and its output end is connected to the conveying roller. During adjustment, the adjustment device is adapted to drive the support frame to rotate along the worktable, thereby realizing the lifting and lowering adjustment of the conveying roller.

3. The hot melt adhesive coating device for automotive interior parts as described in claim 2, characterized in that: The adjusting device includes a telescopic component, which is hinged to the worktable, and the piston end of the telescopic component is hinged to the support frame.

4. The hot melt adhesive coating device for automotive interior parts as described in claim 3, characterized in that: The adjustment device also includes a baffle and a lead screw. The baffle is vertically slidably mounted on the worktable, and the lead screw is vertically rotatably mounted on the worktable and cooperates with the baffle. During adjustment, the lead screw is rotated to drive the baffle to adjust its height. The support frame is adapted to rotate until it abuts against the baffle to achieve a limiting lock on the conveyor roller.

5. The hot melt adhesive coating device for automotive interior parts as described in claim 4, characterized in that: The adjustment device also includes a throttle and a transmission assembly. The throttle is vertically rotatably mounted on the workbench and connected to the lead screw through the transmission assembly. The throttle is adapted to drive the lead screw to rotate through the transmission assembly.

6. The hot melt adhesive coating device for automotive interior parts as described in claim 2, characterized in that: The glue coating mechanism includes a glue chamber, a glue coating roller, and a pair of limiting rollers. The glue chamber is installed above the worktable. The glue coating roller is rotatably installed at the feed port at the bottom of the glue chamber, and the glue coating roller cooperates with the conveying roller to form the glue coating area. The limiting rollers are symmetrically installed on both sides of the bottom of the glue chamber with the glue coating roller as the center and cooperate with the glue coating roller.

7. The hot melt adhesive coating device for automotive interior parts as described in claim 6, characterized in that: The glue application mechanism also includes a second lead screw and a frame. One of the limiting rollers is rotatably mounted on the frame, and the frame is horizontally slidably mounted on the glue chamber. The second lead screw is horizontally rotatably mounted on the glue chamber and cooperates with the frame. Rotating the second lead screw drives the limiting roller to move horizontally, thereby adjusting the feeding gap between the limiting roller and the glue application roller.

8. The hot melt adhesive coating device for automotive interior parts as described in claim 7, characterized in that: The glue application mechanism also includes a knob and a transmission component. The knob is vertically rotatable on the side of the glue chamber via a rotating shaft and is connected to the second lead screw via the transmission component. The knob is adapted to drive the second lead screw to rotate via the transmission component.

9. The hot melt adhesive coating device for automotive interior parts as described in claim 4, characterized in that: The baffle includes an integrally formed horizontal section and a vertical section that are perpendicular to each other. The horizontal section cooperates with the support frame, and the vertical section cooperates with the lead screw.

10. The hot melt adhesive coating device for automotive interior parts as described in claim 9, characterized in that: The hot melt adhesive coating device for automotive interior parts also includes a material plate; during adhesive application, leather products are suitable for being adhered to the material plate, thereby enabling the transport of the leather products.

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