Cover covering and closing-up positioning device

Abstract

The utility model discloses a cover cap wrapping, closing-in and positioning device which comprises a closing-in and positioning tool used for positioning a cover cap and leather and a fuse machine matched with the closing-in and positioning tool and used for controlling the closing-in and positioning tool to conduct hot pressing. The closing-in positioning tool comprises an upper closing-in positioning tool body used for covering the cover cap and the leather and a lower closing-in positioning tool body used for placing the cover cap where the leather is positioned. A first arc-shaped part and a second arc-shaped part which are used for covering the closing area on the inner surface of the cover cap and the outer surface of leather are respectively arranged on the closing positioning upper tool; the fuse machine comprises a fuse machine heating plate, a fuse machine lower bottom plate table top and a fuse machine controller, wherein the fuse machine heating plate is arranged above the closing-in positioning upper tool and connected with the closing-in positioning upper tool, the fuse machine lower bottom plate table top is arranged below the closing-in positioning lower tool and connected with the closing-in positioning lower tool, and the fuse machine controller is arranged on the fuse machine heating plate. A system.

Description

Technical Field

[0001] The utility model relates to the technical field of automotive airbag, in particular to a cover wrapping and closing positioning device. Background Art

[0002] For the cover leather wrapping of an existing driver airbag module, in the closing area where the leather bends from the outer surface of the cover to the inner surface of the cover, since the adhesive glue used is an environment-friendly water-based glue, after applying glue on the cover body and the leather in the closing area and drying it, the glue is activated through a certain temperature, and the leather is firmly pasted on the inner surface of the cover in the closing area by applying pressure. The operation is carried out by means of manual hot air activation and clamping with a bent-nose pliers. When the activation temperature and time are too short, the glue in some areas fails to be activated, resulting in the leather not being firmly pasted on the inner surface of the cover and warping. When the activation temperature and time are too long, the surface of the leather is damaged and discolored, and the closing area of the cover body is deformed into unevenness, affecting the overall appearance. At the same time, there is still partial glue that is not fully activated, resulting in the closing leather not being firmly pasted and warping, not meeting the requirements.

[0003] There are two existing closing and pasting positioning methods: Method 1: After positioning the cover leather, directly use a hot air gun to move and blow the inner surface of the leather in the closing area by hand to activate the glue, and then use a bent-nose pliers to clamp and press on both surfaces of the leather to paste and position the leather. After verification: The time of hot air activation and the hot air distance are unstable, and the clamping area is not fully covered, resulting in incomplete activation of the glue, partial leather not being firmly pasted, and the closing part warping, and the closing leather cannot be completely pasted and positioned. Method 2: Directly use tooling to fix the cover and the closing leather respectively, heat the cover and the leather, and use a vacuum adsorption tooling to adsorb the closing leather on the inner surface of the cover and paste it. After verification, there are obvious large wrinkles and local warping on the surface of the leather after pasting, and obvious vacuum adsorption marks appear locally, affecting the overall appearance and unable to achieve pasting and positioning.

[0004] Therefore, through beneficial exploration and research, the applicant has found a method to solve the above problems, and the technical solution to be introduced below is generated under this background. Content of the Utility Model

[0005] The technical problem to be solved by the utility model is: to provide a cover wrapping and closing positioning device that can ensure complete activation of the glue while ensuring no damage to the surface of the leather after pasting and positioning and no deformation of the closing area of the cover body in view of the deficiencies of the prior art.

[0006] The technical problem to be solved by the utility model can be realized by adopting the following technical solutions:

[0007] A cover wrapping and closing positioning device, characterized in that it includes a closing and positioning tooling for positioning the cover and the leather, and a hot melt machine that cooperates with the closing and positioning tooling and is used to control the hot pressing of the closing and positioning tooling. The closing and positioning tooling includes a closing and positioning upper tooling for covering the cover and the leather, and a closing and positioning lower tooling for placing the cover after the leather is positioned. The closing and positioning upper tooling is respectively provided with a first arc portion for covering the closing area of the inner surface of the cover and a second arc portion for covering the outer surface of the leather. The hot melt machine includes a hot melt machine heating plate arranged above the closing and positioning upper tooling and connected to the closing and positioning upper tooling, a hot melt machine lower bottom plate table arranged below the closing and positioning lower tooling and connected to the closing and positioning lower tooling, and a hot melt machine control system arranged on the hot melt machine heating plate.

[0008] In a preferred embodiment of the present invention, the closing and positioning upper tooling includes a closing and positioning upper press head for covering the closing area of the inner surface of the cover and the outer surface of the leather. The closing and positioning upper press head is fixedly connected to the hot melt machine heating plate through a closing and positioning upper bottom plate.

[0009] In a preferred embodiment of the present invention, the closing and positioning lower tooling includes a closing and positioning lower base for placing the cover after the leather is positioned. The closing and positioning lower base is fixedly connected to the hot melt machine lower bottom plate table through a closing and positioning lower bottom plate.

[0010] In a preferred embodiment of the present invention, the first arc portion is fixedly connected to the closing and positioning upper press head, and the first arc portion and the second arc portion are connected through a transition.

[0011] In a preferred embodiment of the present invention, the diameter of the first arc portion is larger than the diameter of the second arc portion, so that the first arc portion can cover the outer surface of the leather, and the second arc portion can cover the closing area of the inner surface of the cover.

[0012] In a preferred embodiment of the present invention, the hot melt machine control system includes a hot melt machine control panel and a hot melt cylinder arranged on the hot melt machine control panel and connected to the hot melt machine heating plate.

[0013] Due to the adoption of the above technical solutions, the beneficial effects of the present invention are as follows: By using the present invention, problems such as the leather not being firmly adhered at the closing part of the cover leather wrapping, the leather surface being damaged and discolored, and the edge area of the cover body being deformed into unevenness are solved. In addition, the problem of incomplete activation of the glue, the problems of activation temperature, time, distance, and incomplete clamping coverage area are solved. Description of the Drawings

[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0015] Figure 1 is one of the structural schematic diagrams of the present invention.

[0016] Figure 2 is the second structural schematic diagram of the present invention.

[0017] Figure 3 is the structural schematic diagram of the product of the present invention.

[0018] Figure 4 is the process flow chart of the present invention. Detailed implementation manners

[0019] In order to make the technical means, creative features, achieved purposes and effects realized by the present invention easy to understand, the present invention will be further described below with reference to specific illustrations.

[0020] Refer to Figures 1 to 4 A cover wrapping and closing positioning device as shown, which includes a closing and positioning tooling 100 for positioning the cover 1 and the leather 2, and a hot melt machine 200 that cooperates with the closing and positioning tooling 100 and is used to control the hot pressing of the closing and positioning tooling 100. The closing and positioning tooling 100 includes a closing and positioning upper tooling 110 for covering the inner surface of the cover 1 and the outer surface of the leather 2, and a closing and positioning lower tooling 120 for placing the cover 1 after the leather 2 is positioned. On the closing and positioning upper tooling 110, there are respectively provided a closing area 1a for covering the inner surface of the cover 1, a first arc portion 110a for covering the outer surface of the leather 2, and a second arc portion 110b. The hot melt machine 200 includes a hot melt machine heating plate 210 disposed above the closing and positioning upper tooling 110 and connected to the closing and positioning upper tooling 110, a hot melt machine lower bottom plate table 220 disposed below the closing and positioning lower tooling 120 and connected to the closing and positioning lower tooling 120, and a hot melt machine control system 230 disposed on the hot melt machine heating plate 210.

[0021] The closing and positioning upper tooling 110 includes a closing and positioning upper press head 111 for covering the closing area 1a of the inner surface of the cover 1 and the outer surface of the leather 2. The closing and positioning upper press head 111 is fixedly connected to the hot melt machine heating plate 210 through a closing and positioning upper bottom plate 112.

[0022] The lower tooling 120 for closing and positioning includes a lower base 121 for placing the cover 1 after the leather 2 is positioned. The lower base 121 for closing and positioning is fixedly connected to the lower base table surface 320 of the hot melt machine through a lower bottom plate 122 for closing and positioning.

[0023] The first arc portion 110a is fixedly connected to the upper press head 111 of the closing and positioning tooling. The first arc portion 110a and the second arc portion 110b are connected through a transition. In this embodiment, the diameter of the first arc portion 110a is larger than that of the second arc portion 110b, so that the first arc portion 110a can cover the outer surface of the leather 2, and the second arc portion 110b can cover the closing area 1a on the inner surface of the cover 1.

[0024] The hot melt machine control system 230 includes a hot melt machine control panel 231 and a hot melt cylinder 232 arranged on the hot melt machine control panel 231 and connected to the hot melt plate 210 of the hot melt machine. In this embodiment, the hot melt machine control panel 231 sets the temperature for hot pressing and shaping to be 110°C to 130°C, the hot pressing time to be 20S to 50S, and the air pressure to be 0.4MP to 0.7MP. The actual temperature, hot pressing time, and air pressure are set according to the production rhythm of the product, the requirements for the hot pressing and shaping effect, and the appearance state of the product.

[0025] The working principle of the present utility model is as follows:

[0026] The upper press head 111 of the closing and positioning tooling is fixed on the upper bottom plate 112 of the closing and positioning tooling. The upper bottom plate 112 of the closing and positioning tooling is fixed on the hot melt plate 210 of the hot melt machine, while the lower base 121 for closing and positioning is fixed on the lower bottom plate 122 for closing and positioning, and the lower bottom plate 122 for closing and positioning is further fixed on the lower base table surface 220 of the hot melt machine. Subsequently, the temperature for hot pressing and shaping is set to be 110°C to 140°C, the hot pressing time is set to be 20S to 60S, and the air pressure is set to be 0.4MP to 0.8MP through the hot melt machine control panel 231. The actual temperature, hot pressing time, and air pressure are set according to the production rhythm of the product, the requirements for the closing and positioning hot pressing effect, and the appearance state of the product. Finally, the cover 1 and the leather 2 are placed in the lower base 121 for closing and positioning. The hot melt machine 200 is started according to the set parameters. The first arc portion 110a and the second arc portion 110b of the upper press head 111 of the closing and positioning tooling respectively cover the outer surface of the leather 2 and the closing area 1a on the inner surface of the cover 1, and automatically perform closing and positioning hot pressing with the lower base 121 for closing and positioning. After the closing and positioning hot pressing, the upper press head 111 of the closing and positioning tooling automatically rises, and the product cover 1 and the leather 2 are taken out. After natural cooling to room temperature, it is transferred to the next process.

[0027] The process flow of a leather shaping device for a cover wrapping process of the present utility model is as follows:

[0028] 1) Fixing of the closing and positioning tooling: Fix the mounting plates where the upper pressing head of the closing and positioning upper tooling and the lower base of the closing and positioning lower tooling are located on the heating plate of the hot melt machine and the tabletop of the lower bottom plate of the hot melt machine respectively;

[0029] 2) Setting the closing and positioning temperature, pressure and time: Set the temperature, pressure and time of closing and positioning on the hot melt machine, and heat it to the set value and keep it stable;

[0030] 3) Placing the cover: Place the positioned cover made of leather into the lower base of the closing and positioning lower tooling;

[0031] 4) Closing and positioning: Start the hot melt machine to automatically carry out hot pressing for closing and positioning according to the set parameters, and at the same time release the internal stress of the leather;

[0032] 5) Taking out the product: After the hot pressing for closing and positioning, the upper pressing head automatically rises, take out the cover, and cool it naturally to room temperature;

[0033] 6) Transferring to the next process: Transfer the taken-out cover after closing and positioning to the next process at the production site.

[0034] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A cover wrapping and closing positioning device, characterized in that, It includes a closing positioning tooling for positioning the cover and the leather, and a hot melt machine that cooperates with the closing positioning tooling and is used to control the hot pressing of the closing positioning tooling. The closing positioning tooling includes a closing positioning upper tooling for covering the cover and the leather, and a closing positioning lower tooling for placing the cover after the leather is positioned. On the closing positioning upper tooling, there are respectively arranged a first arc portion for covering the closing area of the inner surface of the cover and the outer surface of the leather, and a second arc portion. The hot melt machine includes a hot melt machine heating plate arranged above the closing positioning upper tooling and connected to the closing positioning upper tooling, a hot melt machine lower bottom plate table arranged below the closing positioning lower tooling and connected to the closing positioning lower tooling, and a hot melt machine control system arranged on the hot melt machine heating plate.

2. The positioning device for covering and closing the opening of the cover according to claim 1, characterized in that, The closing positioning upper tooling includes a closing positioning upper press head for covering the closing area of the inner surface of the cover and the outer surface of the leather. The closing positioning upper press head is fixedly connected to the hot melt machine heating plate through a closing positioning upper bottom plate.

3. The positioning device for covering and closing the opening of the cover according to claim 1, characterized in that The closing positioning lower tooling includes a closing positioning lower base for placing the cover after the leather is positioned. The closing positioning lower base is fixedly connected to the hot melt machine lower bottom plate table through a closing positioning lower bottom plate.

4. The positioning device for covering and closing the opening of the cover according to claim 2, wherein, The first arc portion is fixedly connected to the closing positioning upper press head, and the first arc portion is connected to the second arc portion through a transition.

5. The positioning device for covering and closing the opening of the cover according to claim 4, characterized in that, The diameter of the first arc portion is larger than that of the second arc portion, so that the first arc portion can cover the outer surface of the leather, while the second arc portion can cover the closing area of the inner surface of the cover.

6. The positioning device for covering and closing the cover according to claim 1, characterized in that, The hot melt machine control system includes a hot melt machine control panel and a hot melt cylinder arranged on the hot melt machine control panel and connected to the hot melt machine heating plate.

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