Manufacturing method of surface-flocked trunk storage box, storage box and automobile

Abstract

The invention relates to a manufacturing method of a trunk storage box with a flocked surface, the storage box and an automobile. The manufacturing method comprises the following steps: baking plastic particles for preparing a storage box body at the temperature of 115-125 DEG C for 11-13 hours; the baked plastic particles are used for preparing the storage box body; prime coat is sprayed on the inner side face of the prepared storage box body; the spraying time starting point of flocking glue is determined according to the environment humidity, the flocking glue is sprayed according to the determined spraying time starting point, and the flocking glue is prepared by adding a set amount of water-retaining agent into initial flocking glue; after the flocking glue is sprayed, electrostatic flocking is started, and a flocking layer is formed; after flocking is completed, baking is conducted for 55 min to 65 min at the temperature of 95 DEG C to 105 DEG C. By means of the manufacturing method, the problems existing during large-area flocking of the trunk storage box are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of automotive accessories, and particularly relates to a manufacturing method of a trunk storage box with flocked surface, a storage box and an automobile. Background Art

[0002] The statements herein only provide background art related to the present invention and do not necessarily constitute prior art.

[0003] With the progress of technology and the diversification of consumer demands, the development of automotive industrial technology is becoming increasingly rapid. Modern automobiles are no longer simply a means of transportation, but also a very important part of people's daily lives, and reflect personal taste and the pursuit of happiness in life. Therefore, the interior design and materials of automobiles are a very important aspect that current consumers attach great importance to, and consumers' requirements for the refinement of automobile interiors are increasing day by day. Traditional automotive design focuses on functionality and durability. However, with the innovation of materials science and manufacturing processes, modern automobiles, while maintaining these basic attributes, pay more attention to texture and comfort. Automobile manufacturers continuously introduce solutions such as genuine leather, composite lightweight plastics, and faux fur to improve the use texture to meet the market's demand for the refinement of automobile appearance.

[0004] The designs of existing automotive interior decoration solutions still have some limitations in terms of cost and weight. For example, for the surface decoration of the trunk sheet metal / plastic rear storage box, the current industry's decoration solutions for the trunk sheet metal / plastic rear storage box are all to add an interior covering piece on top of the storage box. This solution meets the requirements of appearance and texture, but this solution also has the pain points of increased cost, increased weight, and decreased storage space.

[0005] Flocking the inner surface of the storage box can overcome the above defects, improve the volume space of the storage box and reduce costs. However, the current flocking mainly targets storage boxes with smaller internal dimensions in automobiles, such as glove box storage boxes, etc. For storage boxes with larger dimensions like trunk storage boxes, using traditional flocking processes will result in problems such as excessive odor, and at the same time, due to time reasons, large-area spraying of flocking glue will lead to poor consistency of flocking effect and difficulty in meeting the wear resistance standard. Summary of the Invention

[0006] Aiming at the deficiencies of the existing technology, the purpose of the present invention is to provide a manufacturing method of a trunk storage box with flocked surface, a storage box and an automobile, which overcomes the problems existing in large-area flocking and solves the flocking problem of the trunk storage box.

[0007] To achieve the above purpose, the present invention is realized through the following technical solutions:

[0008] In the first aspect, an embodiment of the present invention provides a manufacturing method of a trunk storage box with flocked surface, including the following steps:

[0009] Bake the plastic particles used for preparing the storage box body at a temperature of 115°C - 125°C for 11h - 13h;

[0010] Use the baked plastic particles to prepare the storage box body;

[0011] Spray the primer on the inner side surface of the prepared storage box body;

[0012] Determine the starting point of the spraying time of the flocking glue according to the environmental humidity, and spray the flocking glue according to the determined spraying time starting point, wherein the flocking glue is made by adding a set amount of water retention agent to the initial flocking glue;

[0013] After the spraying of the flocking glue is completed, start electrostatic flocking to form a flocked layer;

[0014] After the flocking is completed, bake at 95°C - 105°C for 55min - 65min.

[0015] Optionally, the addition amount of the water retention agent is 1.8% - 2.2% of the total mass of the flocking glue, preferably 2%.

[0016] Optionally, when the environmental humidity is less than 50%, 4 - 6 minutes after the spraying of the primer is completed, start spraying the flocking glue, preferably start spraying the flocking glue after 5 minutes. When the environmental humidity is not less than 50%, 9 - 11 minutes after the spraying of the primer is completed, start spraying the flocking glue, preferably start spraying the flocking glue after 10 minutes.

[0017] Optionally, the flocking glue is composed of 40% - 50% of polyurethane and 50% - 60% of water.

[0018] Optionally, after the flocking and baking are completed, install a waterproof sponge strip on the back of the overlapping surface of the storage box body.

[0019] Optionally, bake the waterproof sponge strip at a temperature of 75°C - 85°C for 7.5h - 8.5h and then install it on the back of the overlapping edge of the storage body.

[0020] Optionally, when preparing the storage box body, a steel bushing is pre - set at a set position at its overlapping edge, and the storage box body and the steel bushing are integrally injection - molded.

[0021] Optionally, after the flocking and baking are completed, fix the magic tape on the front overlapping surface of the storage box body.

[0022] In a second aspect, an embodiment of the present invention provides a trunk storage box, which is made by the manufacturing method of the trunk storage box with flocked surface described in the first aspect.

[0023] In a third aspect, an embodiment of the present invention provides an automobile, which is provided with the trunk storage box described in the second aspect.

[0024] The beneficial effects of the present invention are as follows:

[0025] 1. In the method for manufacturing the storage box of the present invention, the plastic particles are baked at a temperature of 115°C - 125°C for 11h - 13h, and at the same time, after flocking, they are baked at 95°C - 105°C for 55min - 65min. This can improve the odor property of the storage box product, avoid the problem that the odor standard fails to meet the requirements due to excessive flocking glue during large-area flocking. At the same time, baking at 95°C - 105°C for 55min - 65min after flocking can improve the friction resistance of the flocked layer while improving the odor property. Through the improvement of a single process, the two effects of improving the odor and enhancing the friction resistance of the flocked layer are achieved. The improvement is simple and applicable to the flocking requirements of large-sized storage boxes.

[0026] 2. In the method for manufacturing the storage box of the present invention, the starting time of spraying the flocking glue is determined according to the environmental humidity, and a set amount of water retention agent is added to the flocking glue. This can ensure the consistency of the curing state of the overall flocking glue on the product surface during flocking, avoid premature curing of the area where the flocking glue is sprayed first during flocking, enable the flocking fluff to take root deeper in the flocking glue, and at the same time, in combination with the baking temperature after flocking, improve the friction resistance of the flocked layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings forming a part of this specification are used to provide a further understanding of the present invention. The schematic embodiments and descriptions thereof of the present invention are used to explain the present invention and do not constitute an improper limitation of the present invention.

[0028] Figure 1 is the flowchart of the manufacturing method of Embodiment 1 of the present invention;

[0029] Figure 2 is the overall structure schematic diagram of Embodiment 2 of the present invention Figure 1 ;

[0030] Figure 3 is the overall structure schematic diagram of Embodiment 2 of the present invention Figure 2 ;

[0031] Figure 4 is the overall structure schematic diagram of Embodiment 2 of the present invention Figure 3 ;

[0032] Figure 5 is the present invention Figure 4 A-sectional view;

[0033] Figure 6 is the exploded view of the overall structure of Embodiment 2 of the present invention;

[0034] Figure 7 It is a schematic diagram of the flocking layer in Embodiment 2 of the present invention;

[0035] Figure 8 It is a schematic diagram of the waterproof sponge strip in Embodiment 2 of the present invention;

[0036] Wherein, 1. Storage box body, 2. Lapping edge, 3. Attachment card slot, 4. Wiring harness installation buckle, 5. Flocking layer, 6. Steel bushing, 7. Main positioning pin, 8. Sub-positioning pin, 9. Magic tape, 10. Waterproof sponge strip. Specific implementation manners

[0037] In a typical implementation manner of the present application, a manufacturing method of a surface-flocked trunk storage box is provided, which is improved on the current manufacturing method of the flocked storage box. The trunk storage box includes a storage box body 1, and a lapping edge 2 is provided at the open side edge of the storage box body. The surface of the lapping edge 2 is a lapping surface, and a waterproof sponge strip 10 is provided on the back of the lapping edge. The lapping edge 2 is also provided with a plurality of steel bushings 6. The storage box body 1 is used for installation on the vehicle body skeleton and matches the interior carpet, wheelhouse liner, and tail sill around it. As Figure 1 shown, the manufacturing method of the surface-flocked trunk storage box includes the following steps:

[0038] Step 1: Bake the plastic particles used to make the storage box body 1. Specifically, bake the plastic particles used to prepare the storage box body 1 at a temperature of 115°C - 125°C for 11h - 13h. Preferably, bake the plastic particles at a temperature of 120°C for 12h. In this embodiment, the baking temperature is increased from 80°C in the traditional process to 120°C, and the baking time is increased from 8h to 12h. If the storage box body 1 of the trunk is baked using the traditional plastic particle baking temperature and time, the odor level of the prepared storage box body 1 is detected to be 4.5. After using the baking temperature and baking time of this embodiment, the odor level of the prepared storage box body 1 reaches the standard level of 3.0.

[0039] In this embodiment, the baking of the plastic particles can be carried out using an existing oven, and no detailed description will be given here.

[0040] Step 2: Prepare the storage box body 1 using the baked plastic particles. In this embodiment, the storage box body 1 is prepared by an injection molding process. During the preparation, a plurality of steel bushings 6 need to be placed at the set positions of the mold so that the storage box body 1 and the steel bushings 6 are integrally formed. In this embodiment, the plurality of steel bushings 6 are arranged at the lapping edge 2 of the storage box body 1, and each lapping edge 2 is provided with a steel bushing 6, and a total of eleven steel bushings 6 are provided.

[0041] The injection molding process can adopt the existing technology, and its specific method will not be further described in detail here.

[0042] Step 3: Spray the primer on the inner surface of the storage box body prepared in Step 2. It is only required to spray the primer evenly, and the thickness can be ignored after volatilization. In this embodiment, the primer uses the existing PP treatment agent. The PP treatment agent is mainly based on modified polyolefin as the main raw material and is dedicated to the surface treatment of materials that are difficult to adhere, such as PP, PE, TPR, TPE, nylon, etc. The surface of the treated material is easy to bond with instant glue, dries quickly and does not turn white. The spraying method of the PP treatment agent can adopt the existing method and will not be described in detail here.

[0043] In some other embodiments, the inner surface of the storage box body 1 can also be subjected to flame treatment to replace the spraying of the primer. Those skilled in the art can choose according to actual needs and will not be described in detail here.

[0044] Step 4: After the primer spraying is completed, determine the starting spraying time of the flocking glue according to the environmental humidity. In this embodiment, when the environmental humidity is less than 50%, start spraying the flocking glue after 4 min - 6 min, and the glue thickness is required to be evenly sprayed at 0.2 mm. It is preferably to spray the flocking glue after 5 min. At this time, under this environmental condition, the drying and curing speed of the primer is relatively fast, and the curing state of the primer drying under this humidity condition is the best. It is not necessary to wait for a long time to start spraying the glue. When the environmental humidity is not less than 50%, after the primer spraying is completed, start spraying the flocking glue after 9 min - 11 min. At this time, under this environmental condition, the drying speed of the primer is relatively slow, and it is necessary to wait for the primer to dry and cure and have the state for glue spraying before starting to spray the glue. It is preferably to start spraying the flocking glue after 10 min. At this time, the curing state of the primer drying under this humidity condition is the best.

[0045] The flocking glue can adopt the existing flocking glue for automotive interior storage boxes. The flocking glue is composed of 40% - 50% polyurethane and 50% - 60% water. In this embodiment, a set amount of water retention agent is added to the flocking glue, and the addition amount of the water retention agent is 1.8% - 2.2% of the total mass of the flocking glue, preferably 2%.

[0046] By adding the water retention agent and determining the starting spraying time of the flocking glue, it can ensure the consistency of the overall glue curing state on the surface of the storage box body 1 during flocking, avoid premature curing of the glue spraying area during flocking, and at the same time, by adding the water retention agent, the flocking fluff can take root deeper in the flocking glue and the bonding is more firm.

[0047] Step 5: After the flocking glue is sprayed, start electrostatic flocking on the inner surface of the storage box body 1 to form a flocking layer 5. In this embodiment, the fluff of the flocking layer 5 is made of PA66 fluff, and the electrostatic flocking process can adopt the existing technology. Using the principle of electrostatic adsorption, the fluff is retarded and attached to the inner side of the storage box body 1. It is carried out by a flocking machine and will not be described in detail here.

[0048] Step 6: After the flocking is completed, bake the flocked storage box body 1. In this step, the baking temperature is 95°C - 105°C, preferably 100°C, and the baking time is 55 min - 65 min, preferably 60 min. If the product after flocking in this embodiment is baked by the traditional baking process, due to the large amount of flocking glue used, the odor property after baking cannot meet the requirements, and the odor property level is 4.5. Compared with the traditional baking process, the baking temperature of the product after flocking in this embodiment is increased from 80°C to 100°C, and the baking time is increased from 50 min to 60 min. After baking, the overall odor property of the storage box is improved from level 4.5 to level 3.0, meeting the odor property requirements.

[0049] In this embodiment, by increasing the baking temperature and baking time of the storage box after flocking, on the one hand, the odor property of the entire storage box is improved, and on the other hand, in combination with the addition of the water retention agent and the determination of the starting time of flocking glue spraying, the flocking fluff can be bonded more firmly, and the friction resistance performance is improved. Compared with the traditional baking parameters, the friction resistance performance of the flocking layer is improved from level 2 to level 4. After the test, there are no changes such as fluff falling off or being cut short. In addition, by using the baking time and baking temperature in Step 6, the problems of insufficient drying effect and poor curing of the flocking glue caused by too low drying temperature and too short time can be avoided, and the problems of changes in the surface light haze and texture of the cloth caused by too high temperature can also be avoided, and the problems of aging and deterioration of the flocking glue and hardening of the hand feeling can be avoided.

[0050] Through the improvement of the baking temperature and baking time in multiple process steps, both the odor property of the product and the friction resistance performance of the flocking layer 5 are improved. The test results before improvement are: odor property level 4.5, friction resistance performance level 2. The test results after the first process optimization are: odor property level 3.5, friction resistance performance level 3. The test results after the second process optimization (adopting the process optimization measures of this embodiment) are: odor property level 3.0, friction resistance performance level 4, meeting the requirements. Two effects are achieved through the improvement of one process step, without the need to carry out process improvements specifically for odor property and friction resistance performance. The process improvement method is simple and convenient, reducing the difficulty of process improvement.

[0051] Step 7: After the baking in Step 6 is completed and the storage box is cooled, install the accessory parts on the storage box body. Further, before installing the accessory parts, the flocking layer can be brushed and cleaned on one side, and the brushed fluff can be collected by a blowing device.

[0052] When installing the accessory parts, first install the waterproof sponge strip 10. Fix the waterproof sponge strip 10 on the back of the overlapping edge 2 of the storage box body 1. In this embodiment, the waterproof sponge strip 10 is adhesively fixed in the card slot on the back of the overlapping edge 2 of the storage box body 1 through its self-adhesive. The fixing method can adopt the existing technology and will not be described in detail here.

[0053] In order to improve the odor property of the product, the waterproof sponge strip 10 is baked at a temperature of 75°C - 85°C for 7.5h - 8.5h, and then installed on the back of the overlapping edge 2 of the storage body 1 after cooling.

[0054] Fix the magic tape 9 on the front of the front overlapping edge 2 of the storage box body 1. In this embodiment, the prickly surface of the magic tape 9 is fixed on the front of the front overlapping edge of the storage box body 1.

[0055] Using the manufacturing method of the storage box in this embodiment, through the improvement of the baking temperature and baking time, the odor property level of the flocked storage box assembly is optimized from level 4.5 to level 3.5, and finally to the best state of level 3.0, solving the problem that the odor does not meet the standard when making the trunk storage box with a flocked layer by the traditional manufacturing process due to the large volume of the storage box body and the large amount of flocking glue used. At the same time, by adding a water retention agent to the flocking glue and determining the starting point of the flocking glue spraying time, the flocking wear resistance level is optimized from level 2 to the target level 4 (the highest is level 5), solving the problems of poor consistency of the flocking effect and difficulty in meeting the wear resistance standard due to time reasons when spraying the flocking glue over a large area. Therefore, through the method of this embodiment, the problems generated when the traditional flocking process is applied to a large-size storage box such as the trunk storage box are solved, breaking through the problems of odor property, surface quality and surface state consistency of large-area flocking, enabling the trunk storage box to be flocked, eliminating the use of interior trim covers, ensuring the requirement of increasing the storage space, ensuring the interior texture while reducing costs, and at the same time maximizing the satisfaction of the styling and general layout design. At the same time, it reduces the assembly stations, optimizes the production beat, and the flocking and plastic storage box are in an integrated form, without the problem of assembly gaps, optimizing the vehicle's NVH performance.

[0056] Embodiment 1

[0057] This embodiment provides a manufacturing method of a trunk storage box, including the following steps:

[0058] Step 1: Bake the plastic particles used to make the storage box body 1. Specifically, bake the plastic particles used to prepare the storage box body 1 at a temperature of 120°C for 12h.

[0059] In this embodiment, the baking of plastic particles can be carried out using an existing oven, and no detailed description will be given here.

[0060] Step 2: Use the baked plastic particles to prepare the storage box body 1. In this embodiment, the storage box body 1 is prepared by an injection molding process. During the preparation, a plurality of steel bushings 6 are placed at the set positions of the mold, so that the storage box body 1 and the steel bushings 6 are integrally formed.

[0061] The injection molding process can adopt the existing technology, and its specific method will not be further described in detail here.

[0062] Step 3: Spray the primer on the inner surface of the storage box body prepared in Step 2. In this embodiment, the primer uses an existing PP treatment agent.

[0063] Step 4: After the primer spraying is completed, determine the starting spraying time of the flocking glue according to the environmental humidity. In this embodiment, when the environmental humidity is less than 50%, after the primer spraying is completed, the flocking glue is sprayed after 5 minutes.

[0064] The flocking glue can use the existing flocking glue for automotive interior storage box flocking. The flocking glue is composed of 40% polyurethane and 60% water. In this embodiment, a set amount of water retention agent is added to the flocking glue, and the addition amount of the water retention agent is 2% of the total mass of the flocking glue.

[0065] Step 5: After the flocking glue spraying is completed, start electrostatic flocking on the inner surface of the storage box body 1 to form a flocking layer 5.

[0066] Step 6: After the flocking is completed, bake the storage box body 1 that has completed flocking. In this step, the baking temperature is 105 °C and the baking time is 55 minutes.

[0067] Step 7: After the baking in Step 6 is completed and the storage box is cooled, install the accessory parts on the storage box body. Further, before installing the accessory parts, the flocking layer can be brushed on one side, and the brushed fluff is collected by a blowing device.

[0068] When installing the accessory parts, first install the waterproof sponge strip 10, and fix the waterproof sponge strip 10 on the back of the overlapping edge 2 of the storage box body 1.

[0069] In order to improve the odor of the product, the waterproof sponge strip 10 is baked at a temperature of 80 °C for 8 hours, and then installed on the back of the overlapping edge 2 of the storage body 1 after cooling.

[0070] Fix the magic tape 9 on the front of the front overlapping edge 2 of the storage box body 1. In this embodiment, the hook surface of the magic tape 9 is fixed on the front of the front overlapping edge of the storage box body 1.

[0071] Example 2

[0072] This embodiment provides a method for manufacturing a trunk storage box, including the following steps:

[0073] Step 1: Bake the plastic particles used to make the storage box body 1. Specifically, bake the plastic particles for preparing the storage box body 1 at a temperature of 125 °C for 11 h.

[0074] Step 2: Use the baked plastic particles to prepare the storage box body 1. In this embodiment, the storage box body 1 is prepared by an injection molding process. During the preparation, a plurality of steel bushings 6 need to be placed at the set positions of the mold, so that the storage box body 1 and the steel bushings 6 are integrally formed.

[0075] Step 3: Spray a primer on the inner surface of the storage box body prepared in Step 2. In this embodiment, the primer uses an existing PP treatment agent.

[0076] Step 4: After the primer spraying is completed, determine the starting spraying time of the flocking glue according to the environmental humidity. In this embodiment, when the environmental humidity is greater than 50%, 10 min after the primer spraying is completed, spray the flocking glue.

[0077] The flocking glue can use an existing flocking glue for automotive interior storage boxes. The flocking glue is composed of 40% polyurethane and 60% water. In this embodiment, a set amount of water retention agent is added to the flocking glue, and the addition amount of the water retention agent is 1.8% of the total mass of the flocking glue.

[0078] Step 5: After the flocking glue spraying is completed, start electrostatic flocking on the inner surface of the storage box body 1 to form a flocking layer 5.

[0079] Step 6: After the flocking is completed, bake the storage box body 1 that has completed flocking. In this step, the baking temperature is 100 °C and the baking time is 60 min.

[0080] Step 7: After the baking in Step 6 is completed and the storage box is cooled, install the accessory parts on the storage box body. Further, before installing the accessory parts, the flocking layer can be brushed on one side to clean it, and the brushed fluff can be collected by a blowing device.

[0081] When installing the accessory parts, first install the waterproof sponge strip 10, and fix the waterproof sponge strip 10 on the back of the overlapping edge 2 of the storage box body 1. In this embodiment, the waterproof sponge strip 10 is adhesively fixed in the card slot on the back of the overlapping edge 2 of the storage box body 1 through its own adhesive. Its fixing method can adopt the existing technology and will not be described in detail here.

[0082] To improve the odor of the product, the waterproof sponge strip 10 is baked at a temperature of 80 °C for 8.5 h, and after cooling, it is installed on the back of the overlapping edge 2 of the storage body 1.

[0083] On the front of the front overlapping edge 2 of the storage box body 1, a magic tape 9 is fixed. In this embodiment, the rough side of the magic tape 9 is fixed on the front of the front overlapping edge of the storage box body 1.

[0084] Embodiment 3

[0085] This embodiment provides a method for manufacturing a trunk storage box, including the following steps:

[0086] Step 1: Bake the plastic particles used to make the storage box body 1. Specifically, the plastic particles used to prepare the storage box body 1 are baked at a temperature of 115 °C for 13 h.

[0087] Step 2: Use the baked plastic particles to prepare the storage box body 1. In this embodiment, the storage box body 1 is prepared by an injection molding process. During preparation, a plurality of steel bushings 6 are placed at the set positions of the mold, so that the storage box body 1 and the steel bushings 6 are integrally formed.

[0088] Step 3: Spray a primer on the inner surface of the storage box body prepared in Step 2. In this embodiment, the primer uses an existing PP treatment agent.

[0089] Step 4: After the primer spraying is completed, determine the starting spraying time of the flocking glue according to the environmental humidity. In this embodiment, when the environmental humidity is greater than 50%, after the primer spraying is completed, the flocking glue is sprayed 10 min later.

[0090] The flocking glue can use an existing flocking glue for automotive interior storage boxes. The flocking glue is composed of 50% polyurethane and 50% water. In this embodiment, a set amount of water retention agent is added to the flocking glue, and the addition amount of the water retention agent is 2% of the total mass of the flocking glue.

[0091] Step 5: After the flocking glue spraying is completed, start electrostatic flocking on the inner surface of the storage box body 1 to form a flocked layer 5.

[0092] Step 6: After the flocking is completed, bake the storage box body 1 that has completed flocking. In this step, the baking temperature is 95 °C and the baking time is 65 min.

[0093] Step 7: After the baking in Step 6 is completed and the storage box is cooled, install the accessory parts on the storage box body. Further, before installing the accessory parts, the flocked layer can be brushed on one side to clean it, and the blown-off fluff is collected by a blowing device.

[0094] When installing the accessory parts, first install the waterproof sponge strip 10 and fix it on the back of the overlapping edge 2 of the storage box body 1. In this embodiment, the waterproof sponge strip 10 is adhesively fixed in the card slot on the back of the overlapping edge 2 of the storage box body 1 through its self-adhesive. The fixing method can adopt the existing technology and will not be described in detail here.

[0095] To improve the odor property of the product, the waterproof sponge strip 10 is baked at a temperature of 80 °C for 8.5 h, and then installed on the back of the overlapping edge 2 of the storage body 1 after cooling.

[0096] Fix the magic tape 9 on the front of the front overlapping edge 2 of the storage box body 1. In this embodiment, the rough surface of the magic tape 9 is fixed on the front of the front overlapping edge of the storage box body 1.

[0097] Embodiment 4

[0098] This embodiment provides a trunk storage box, which is made by using the manufacturing method described in Embodiment 1. As Figures 2 - 8 shown, it includes a storage box body 1. The top of the storage box body 1 is open, and overlapping edges 2 are provided at the four edges of its open end. The surface of the overlapping edge 2 is a overlapping surface.

[0099] An accessory card slot 3 is provided on the bottom surface of the inner side of the storage box body 1, and a wire harness installation buckle 4 is provided on the bottom surface of the outer side of the storage box body 1. The structures of the accessory card slot 3 and the wire harness installation buckle 4 can adopt the existing technology and are integrally injection-molded with the storage box body 1. Their structures will not be described in detail here.

[0100] A flocking layer 5 is provided on the inner surface of the storage box body 1. The flocking layer 5 matches the shape of the inner surface of the storage box body 1 and covers the inner surface of the storage box body 1. The coverage includes the inner bottom surface and the four inner side surfaces of the storage box body 1. The flocking layer 5 uses PA66 fluff. By pre-spraying a primer and spraying flocking glue on the inner surface of the storage box body 1, the fluff is vertically attached to the inner surface of the storage box body 1 by using the principle of electrostatic adsorption. Finally, after baking and curing, the fluff is combined with the plastic storage box body 1, which not only enhances the surface texture but also ensures the functional performance.

[0101] Steel bushings 6 are provided at the overlapping edges 2 of the storage box body 1. Among them, two short overlapping edges 2 arranged along the width direction of the storage box body 1 are each provided with two steel bushings 6, and the two steel bushings 6 are symmetrically arranged along the center of the overlapping edge 2. Four steel bushings 6 are provided at the overlapping edge 2 on the front side of the storage box body 1, and two steel bushings 6 are provided at the overlapping edge 2 on the rear side, for a total of eleven steel bushings 6.

[0102] On the back of the lapping edge at the rear side of the storage box body 1, positioning pins are provided at both ends of the back surface, namely a main positioning pin 7 and a secondary positioning pin 8, and the main positioning pin 7 and the secondary positioning pin 8 are integrally injection-molded with the storage box body 1.

[0103] On the front surface of the lapping edge at the front side of the storage box body 1, a magic tape 9 is provided. Preferably, the prickly surface of the magic tape 9 is provided. In this embodiment, three prickly surfaces of the magic tape 9 are provided on the front surface of the lapping edge at the front side of the storage box body 1.

[0104] On the back surface of the lapping edge 2 of the storage box body 1, a circle of card slots is provided, and a waterproof sponge strip 10 is bonded and fixed in the card slots.

[0105] The storage box of this embodiment is used to be arranged at the position of the spare tire pool of the vehicle, and is used to replace the spare tire pool to increase the storage space of the trunk. The flocked layer covers the visible inner surface of the plastic storage box body.

[0106] During assembly, after inserting the main positioning pin 7 and the secondary positioning pin 8 on the back surface of the lapping edge of the storage box body 1 into the positioning holes of the vehicle body skeleton, the bolt is threadedly connected with the steel bushing 6, and the storage box body 1 is fixedly connected with the vehicle body skeleton through the bolt and the steel bushing 6. While the storage box body 1 is fixed to the vehicle body skeleton, the waterproof sponge strip 10 on the back surface of the lapping edge 2 of the storage box body 1 is compressed, and the waterproof sponge strip 10 cooperates with the sealing surface of the vehicle body skeleton to play a sealing role.

[0107] The magic tape 9 on the front lapping edge of the storage box body 1 is fixed to the furry surface of the magic tape on the interior carpet to support the fixing of the interior carpet.

[0108] By adopting the trunk storage box of this embodiment, the layout space requirements can be met to the greatest extent, and at the same time, the styling design can be given full play to the greatest extent. It can also reduce the assembly stations and optimize the production beat, effectively reduce the vehicle cost, improve the practicality of the parts, shorten the assembly working hours of the interior, and meet the high standards of odor and surface quality at the same time. The trunk storage box with self-adhesive flocking on the surface does not require additional assembly of interior covering parts, directly reduces the assembly stations, simplifies the vehicle assembly structure, reduces the separate transportation cost and the vehicle assembly working hours, effectively reduces the part cost, and improves the economy.

[0109] Embodiment 5

[0110] This embodiment provides a vehicle, which is provided with the trunk storage box described in Embodiment 2. The remaining structures of the vehicle can adopt the existing technologies and will not be described in detail here.

[0111] The above are only the preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. A method for manufacturing a trunk storage box with flocked surface, characterized in that: The following steps are involved: The plastic particles used to prepare the storage box body are baked at a temperature of 115°C-125°C for 11h-13h; The storage box body is prepared by using the baked plastic particles; Spraying a primer on the inner side of the prepared storage box body; Determine the starting point of spraying the flocking glue according to the ambient humidity, and spray the flocking glue according to the determined starting point of spraying, wherein the flocking glue is prepared by adding a set amount of water retaining agent to the initial flocking glue; After the flocking glue is sprayed, electrostatic flocking begins to form a flocking layer; After flocking is completed, bake at 95℃-105℃ for 55min-65min.

2. The method for manufacturing a trunk storage box with flocked surface as claimed in claim 1, characterized in that: The amount of the water retaining agent added is 1.8%-2.2% of the total mass of the flocking glue, preferably 2%.

3. The method for manufacturing a trunk storage box with flocked surface as claimed in claim 1, characterized in that: When the ambient humidity is less than 50%, after the primer is sprayed, the flocking glue is sprayed 4-6 minutes later, preferably 5 minutes later. When the ambient humidity is not less than 50%, after the primer is sprayed, the flocking glue is sprayed 9-11 minutes later, preferably 10 minutes later.

4. The method for manufacturing a trunk storage box with flocked surface as claimed in claim 1, characterized in that: The flocking glue is composed of 40%-50% of polyurethane and 50%-60% of water.

5. The method for manufacturing a trunk storage box with flocked surface as claimed in claim 1, characterized in that: After flocking and baking are completed, a waterproof sponge strip is installed on the back of the overlapping surface of the storage box body.

6. The method for manufacturing a trunk storage box with flocked surface as claimed in claim 1, characterized in that: The waterproof sponge strip is baked at a temperature of 75°C-85°C for 7.5h-8.5h and then installed on the back of the overlapping surface of the storage body.

7. The method for manufacturing a trunk storage box with flocked surface as claimed in claim 1, characterized in that: When the storage box body is prepared, a steel bushing is pre-arranged at a set position at the overlapping edge thereof, and the storage box body and the steel bushing are integrally injection-molded.

8. The method for manufacturing a trunk storage box with flocked surface as claimed in claim 1, characterized in that: After flocking and baking are completed, the Velcro is fixed on the overlapping surface on the front side of the storage box body.

9. A trunk storage box, characterized in that: The trunk storage box is manufactured by the manufacturing method of the surface flocking trunk storage box according to any one of claims 1 to 8.

10. An automobile, characterized in that: A trunk storage box according to claim 9 is provided.

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