Hatchback type car trunk hallstand part and manufacturing method thereof

Abstract

The invention relates to a hatchback type car trunk hallstand part and a manufacturing method thereof. The hatchback type car trunk hallstand part comprises knitted fabric, a cellular board complex and non-woven fabric which are sequentially arranged from top to bottom. The honeycomb plate composite body comprises a first PU layer, a first glass fiber layer, a paper core layer, a second glass fiber layer and a second PU layer which are sequentially arranged from top to bottom. Compared with the prior art, the honeycomb plate is firstly formed, then the back non-woven fabric is bonded, parts are formed in place, R2-R3 part corners can be foamed in place, the shapes of narrow slits and edge hiding grooves in the back faces of the parts are good, and the parts can be well hidden. The luggage case hat and coat stand has the following advantages that the hardness of parts of the luggage case hat and coat stand is high, and the bearing capacity exceeds 20 Kg; the front side is made of knitted fabric, and high-grade feeling is achieved; the cellular board is independently formed, and then the PUR glue is sprayed to adhere the back non-woven fabric, so that the technical problems that the R angle of the part is not formed in place, and narrow slits cannot be formed are solved; the back non-woven fabric is not heated, so that the velvet feeling is good, and the impression is good.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile parts, in particular to a hatchback car trunk hat rack part and a manufacturing method thereof. BACKGROUND

[0002] The hatchback trunk hat rack is installed in the car trunk and mainly serves to (1) place clothes and some other luggage items; (2) shield the items in the trunk, protect privacy, and absorb sound. In the prior art, the structure of the hatchback car trunk hat rack is generally a combination structure of a plastic part and a hat rack body, wherein the plastic part is assembled on the back of the hat rack body, and the needle-punched carpet covers the honeycomb plate to form the hat rack body. The plastic part is assembled on the honeycomb body by metal bolts and nuts. The plastic part is generally made of PP material, and the hat rack body is generally made of a raised carpet + a PHC honeycomb plate + a back non-woven fabric (wherein the back non-woven fabric is integrally foamed with the honeycomb plate). This structure has no big problem for relatively flat parts, but for parts with knitted fabric, the part has an R angle of only R2-R3, the back has a deep and narrow slot, and the back requires a relatively high part, which can cause poor molding and appearance.

[0003] Therefore, there is an urgent need for a hatchback car trunk hat rack part and a manufacturing method thereof. SUMMARY

[0004] The present application provides a hatchback car trunk hat rack part and a manufacturing method thereof to overcome the defects of the prior art. The present application first forms a honeycomb plate, then bonds a back non-woven fabric, the part is molded in place, the R2-R3 part angle can be foamed in place, the part back narrow slot and edge slot shape are good, and the part can be well hidden.

[0005] The present application can be implemented by the following technical solutions: The first object of the present application is to provide a hatchback car trunk hat rack part, which comprises a knitted fabric, a honeycomb plate composite and a non-woven fabric arranged in sequence from top to bottom. The honeycomb plate composite comprises an upper base material, a paper core layer and a lower base material arranged in sequence from top to bottom. The upper base material comprises a first PU layer and a first glass fiber layer. The lower base material comprises a second glass fiber layer and a second PU layer.

[0006] Further, the part further comprises a first adhesive layer and a second adhesive layer, wherein the first adhesive layer is arranged between the knitted fabric and the honeycomb plate composite, and the second adhesive layer is arranged between the honeycomb plate composite and the non-woven fabric.

[0007] Further, the first PU layer fills the first glass fiber layer, and the second PU layer fills the second glass fiber layer.

[0008] Further, the first adhesive layer and the second adhesive layer have a grammage of greater than 50 g / m 2 .

[0009] Further, the knitted fabric has a thickness of 1.2-1.8 mm and a grammage of 220-280 g / m 2 .

[0010] Further, the honeycomb plate composite has a grammage of 2385-2915 g / m 2 .

[0011] Further, the total grammage of the first PU layer and the second PU layer is 1305-1595 g / m 2 .

[0012] Further, the first glass fiber layer and the second glass fiber layer each have a thickness of 2-3 mm and a grammage of 320-380 g / m 2 .

[0013] Further, the paper core layer is a honeycomb paper core.

[0014] Further, the paper core layer has a thickness of 10-12 mm and a grammage of 450-550 g / m 2 .

[0015] Further, the non-woven fabric has a thickness of 1-2 mm and a grammage of 117-143 g / m 2 .

[0016] The two objects of the application are to provide a manufacturing method for a luggage rack part of a hatchback car trunk, comprising the following steps: Step 1: nailing the first glass fiber layer, the second glass fiber layer, and the paper core layer to obtain a nailing honeycomb paper core; Step 2: spraying PU material on the nailing honeycomb paper core obtained in step 1, foaming the sprayed PU material to form a first PU layer and a second PU layer, and obtaining a honeycomb plate composite; Step 3: heating the honeycomb plate composite obtained in step 2, spraying glue on the non-woven fabric, and bonding the honeycomb plate composite and the non-woven fabric to obtain a non-woven fabric honeycomb plate; Step 4: spraying glue on the knitted fabric and placing it in a bagging tool positioning tire film, and placing the non-woven fabric honeycomb plate obtained in step 3 in the bagging tool positioning tire film, starting bagging, and obtaining the part after bagging.

[0017] Further, the manufacturing method specifically comprises the following steps: S1: the first glass fiber layer, the second glass fiber layer and the paper core layer are nailed together using a code nail, the first glass fiber layer and the second glass fiber layer are respectively on the upper and lower surfaces, and the paper core layer is located in the middle, so that a honeycomb paper core that is nailed is obtained; S2: after PU material is sprayed onto the honeycomb paper core that is nailed obtained in step S1 by a mechanical hand according to a certain trajectory, the PU material is directly laid on a honeycomb foaming mold, the mold is closed, foaming is formed, a first PU layer and a second PU layer are formed, and a honeycomb plate composite is obtained; S3: the honeycomb plate composite obtained in step S2 is taken out from the honeycomb foaming mold and stacked; S4: the honeycomb plate composite taken out from the honeycomb foaming mold and stacked is heated and then placed on a honeycomb plate bonding and punching mold, non-woven fabric is sprayed by a mechanical hand according to a certain trajectory, the glue surface of the non-woven fabric is laid in the honeycomb plate bonding and punching mold in the direction of the honeycomb composite, the mold is closed, the non-woven fabric and the edge waste are bonded and cut, and a non-woven fabric honeycomb plate is obtained; S5: after the non-woven fabric honeycomb plate is combined in step S4, the non-woven fabric honeycomb plate is taken out from the honeycomb plate bonding and punching mold and stacked; S6: the knitted fabric is cut by a cutter mold, and a cut knitted fabric is obtained; S7: the cut knitted fabric obtained in step S6 is sprayed with glue by a glue spraying mechanical hand according to a certain preset trajectory, and a knitted fabric sprayed with glue is obtained; S8: the knitted fabric sprayed with glue obtained in step S7 is placed in a bagging tool positioning tire film; S9: the non-woven fabric honeycomb plate obtained in step S4 is placed in the bagging tool positioning tire film; S10: after step S9 is performed, the bagging tool is started, and after covering, the part is taken out, which is the luggage compartment coat rack part of the hatchback car.

[0018] Further, in step S2, the temperature of the honeycomb foaming mold is 110-130 DEG C, the pre-pressing time is 15-25 s, the air release time is 3-7 s, the pressure holding time is 55-65 s, and the pressure setting is 8-12 Mpa.

[0019] Further, in step S4, the heating temperature is 115-125 DEG C, the heating time is 15-25 s, the pressure is held during heating, the pressure holding pressure is 8-17 Mpa, and the pressure holding time is 40-70 s.

[0020] Further, in step S10, during the covering process, the large surface pressure holding and the side edge pressure holding are performed, the large surface pressure holding time is 45-55 s, and the side edge pressure holding time is 27-33 s.

[0021] Compared with the prior art, the present application has the following beneficial effects: 1) The luggage compartment hat rack part of the hatchback car and the manufacturing method thereof provided by the present application, first form the honeycomb plate, then bond the non-woven fabric on the back, the part is formed in place, the R2-R3 part angle can be foamed in place, the narrow gap and the edge hiding groove shape on the back of the part are good, and the defects can be well hidden.

[0022] 2) The luggage compartment hat rack part of the hatchback car and the manufacturing method thereof provided by the present application, the burr of the cutout on the back of the part covered by the knitted fabric can be well hidden in the narrow gap, so that the aesthetic effect is achieved.

[0023] 3) The luggage compartment hat rack part of the hatchback car and the manufacturing method thereof provided by the present application, since the non-woven fabric is not subjected to heating treatment, there is no foaming overflow phenomenon on the back, and the softness is good.

[0024] 4) The luggage compartment hat rack part of the hatchback car and the manufacturing method thereof provided by the present application, the luggage compartment hat rack part manufactured has high hardness and a bearing capacity of more than 20 kg, the front is made of knitted fabric, the seniority is strong, the honeycomb plate is separately formed, the non-woven fabric on the back is bonded by spraying PUR glue, the process problems that the R angle of the part cannot be formed in place and the narrow gap cannot be made are solved, the non-woven fabric on the back is not subjected to heating, the softness is good, and the visual effect is good. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is an exploded schematic view of the luggage compartment hat rack part of the hatchback car of the present application.

[0026] Figure 2 It is a sectional schematic view of the luggage compartment hat rack part of the hatchback car of the present application.

[0027] Figure 3 It is a sectional schematic view of the luggage compartment hat rack part of the hatchback car of the comparative example.

[0028] In the drawing: 1, knitted fabric, 2, honeycomb plate composite, 21, upper base material, 22, lower base material, 23, paper core layer, 3, non-woven fabric, 4, first bonding layer, 5, second bonding layer.

[0029] 4, napped carpet, 5, bonding layer, 6-1, PHC upper base material, 6-2, PHC lower base material, 7, PHC paper core layer, 8, back non-woven fabric. DETAILED DESCRIPTION

[0030] The present application will be described in detail below in combination with specific examples. The present embodiment is implemented on the premise of the technical scheme of the present application, and detailed implementation modes and specific operation processes are given, but the protection scope of the present application is not limited to the following examples.

[0031] The terms "comprise", "comprising", "include", "including", "contain", "containing", "have", "having", or any other similar phrase are open-ended transitional phrases that are intended to cover the recited elements or steps in their entirety, but do not exclude additional elements or steps. The composition and method / process of the present application comprise, consist essentially of and consist of the essential elements and limitations described in the present application, as well as any additional or optional ingredients, components, steps or limitations described in the present application.

[0032] The selection scope of the terms "and / or", "or / and", "and / or" used in the present application includes any one of two or more related listed items, and also includes any and all combinations of the related listed items, including any two related listed items, any more related listed items, or all related listed items. It should be noted that when at least three items are connected by at least two conjunctions selected from "and / or", "or / and", "and / or", it should be understood that in the present application, the technical solution undoubtedly includes the technical solution connected by "logical and", and also undoubtedly includes the technical solution connected by "logical or".

[0033] In the present application, the technical features described in an open manner include both the closed technical solution consisting of the listed features, and the open technical solution containing the listed features.

[0034] In the present application, with respect to the numerical interval, unless otherwise specified, the numerical interval is considered to be continuous, and includes the minimum value and the maximum value of the range, and each value between the minimum value and the maximum value. Further, when a range is referred to as an integer, each integer between the minimum value and the maximum value of the range is included. In addition, when multiple ranges are provided to describe a feature or a characteristic, the ranges can be combined. In other words, unless otherwise specified, all ranges disclosed in the present application should be understood to include any and all sub-ranges encompassed therein.

[0035] The present application has only disclosed some numerical ranges specifically. However, any lower limit can be combined with any upper limit to form a range not explicitly recited; and any lower limit can be combined with other lower limits to form a range not explicitly recited, and similarly any upper limit can be combined with any other upper limit to form a range not explicitly recited. In addition, each individually disclosed point or single numerical value can itself be combined with any other point or single numerical value or with other lower limits or upper limits to form a range not explicitly recited.

[0036] Unless otherwise specified, the temperature parameters in this invention can be either constant temperature treatment or treatment within a certain temperature range. The constant temperature treatment allows temperature fluctuations within the precision range controlled by the instrument, such as ±5°C, ±4°C, ±3°C, ±2°C, or ±1°C.

[0037] In this invention, "optionally," "optionally," and "optional" mean that they are optional, that is, they are selected from either "with" or "without." If multiple "options" appear in a technical solution, unless otherwise specified and there are no contradictions or mutual constraints, each "option" is independent.

[0038] In the description of the invention, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0039] Unless otherwise specified, all embodiments and optional embodiments of the present invention can be combined with each other to form new technical solutions. Unless otherwise specified, all technical features and optional technical features of the present invention can be combined with each other to form new technical solutions.

[0040] Unless otherwise specified, all steps of the present invention may be performed sequentially or randomly, but are preferably performed sequentially.

[0041] In this invention, any component models, material names, connection structures, control methods, etc., not explicitly stated are considered common technical features disclosed in the prior art.

[0042] To make the objectives, features and advantages of the present invention more apparent, further embodiments are provided below to illustrate the invention in detail.

[0043] The following embodiments are only used to further illustrate the present invention and should not be construed as limiting the scope of protection of the present invention. Any non-essential improvements and adjustments made by those skilled in the art based on the principles described in the present invention are within the scope of protection of the present invention.

[0044] Example 1 like Figures 1-2 As shown, this embodiment provides a hatchback car trunk coat rack component, which includes a knitted fabric 1, a honeycomb panel composite 2, and a non-woven fabric 3 arranged sequentially from top to bottom; The component also includes a first adhesive layer 4 and a second adhesive layer 5; The first adhesive layer 4 is disposed between the knitted fabric 1 and the honeycomb composite 2, and the second adhesive layer 5 is disposed between the honeycomb composite 2 and the nonwoven fabric 3.

[0045] The honeycomb panel composite 2 includes an upper substrate 21, a paper core layer 23, and a lower substrate 22 arranged sequentially from top to bottom; The upper substrate 21 includes a first PU layer 21 and a first fiberglass layer 22; The lower substrate 22 includes a second fiberglass layer 24 and a second PU layer 25.

[0046] The first PU layer 21 is filled with the first glass fiber layer 22, and the second PU layer 25 is filled with the second glass fiber layer 24.

[0047] That is, Figure 1 As shown, the part has a five-layer structure, namely knitted fabric 1, first adhesive layer 4, honeycomb panel composite 2, second adhesive layer 5, and non-woven fabric 3.

[0048] The weights of the first adhesive layer 4 and the second adhesive layer 5 are both greater than 50 g / m². 2 .

[0049] The first PU layer 21 is filled with the first glass fiber layer 22, and the second PU layer 25 is filled with the second glass fiber layer 24.

[0050] The weights of the first adhesive layer 4 and the second adhesive layer 5 are both greater than 50 g / m². 2 .

[0051] Both the first adhesive layer 4 and the second adhesive layer 5 are PUR adhesives.

[0052] The knitted fabric 1 has a thickness of 1.2-1.8 mm and a weight of 220-280 g / m². 2 .

[0053] The aforementioned honeycomb panel composite has a weight of 2385~2915 g / m². 2 .

[0054] The total basis weight of the first PU layer and the second PU layer is 1305~1595 g / m³. 2 .

[0055] The thickness of both the first and second fiberglass layers is 2-3 mm, and their basis weight is 320-380 g / m². 2 .

[0056] The paper core layer 23 is a honeycomb paper core.

[0057] The paper core layer 23 has a thickness of 10-12 mm and a basis weight of 450-550 g / m³. 2 .

[0058] The nonwoven fabric 3 has a thickness of 1~2mm and a basis weight of 117~143g / m³. 2 .

[0059] For the production method of the hatchback luggage compartment hat rack part, a honeycomb board foaming forming process + non-woven fabric bonding process + knitted fabric covering process is used, and the specific steps are as follows: S1: The first glass fiber layer, the second glass fiber layer and the paper core layer 23 are nailed together using a code nail, the first glass fiber layer and the second glass fiber layer are respectively on the upper and lower surfaces, and the paper core layer 23 is located in the middle, to obtain a customized honeycomb paper core; S2: After the PU material is sprayed onto the customized honeycomb paper core obtained in step S1 by a mechanical hand according to a certain trajectory, it is directly laid on a honeycomb foaming mold, the mold is closed, foaming is formed, the first PU layer and the second PU layer are formed, and a honeycomb board composite 2 is obtained; the temperature of the honeycomb foaming mold is 110-130℃, the pre-pressing time is 15~25 s, the exhaust time is 3~7 s, the pressure holding time is 55~65 s, and the pressure setting is 8~12 Mpa; S3: The honeycomb board composite 2 obtained in step S2 is taken out from the honeycomb foaming mold and stacked; S4: The honeycomb board composite 2 taken out from the honeycomb foaming mold and stacked is heated and placed on a honeycomb board bonding and cutting mold, and the non-woven fabric 3 is sprayed with PUR glue by a mechanical hand according to a certain trajectory, and the glue surface is laid in the honeycomb board bonding and cutting mold in the direction of the honeycomb composite 2, the mold is closed, the non-woven fabric 3 and the cutting edge waste are bonded, and a non-woven fabric honeycomb board is obtained; the heating temperature is 115~125℃, specifically 120℃, the heating time is 15~25 s, specifically 15 s, the pressure is kept during heating, the pressure is 8~17 Mpa, specifically 12 Mpa, the pressure holding time is 40-70 s, specifically 60 s; S5: After the non-woven fabric honeycomb board is combined in step S4, the non-woven fabric honeycomb board is taken out from the honeycomb board bonding and cutting mold and stacked; S6: The knitted fabric 1 is cut by a cutter mold to obtain a cut knitted fabric; S7: The cut knitted fabric obtained in step S6 is sprayed with PUR glue by a glue spraying mechanical hand according to a certain preset trajectory to obtain a knitted fabric sprayed with glue; S8: The knitted fabric sprayed with PUR glue obtained in step S7 is placed in a covering tool positioning tire film; S9: The non-woven fabric honeycomb board obtained in step S4 is placed in the covering tool positioning tire film; S10: After step S9 is performed, the covering tool is started, covering is performed, and large surface pressure holding and side edge pressure holding are performed during the covering process; the large surface pressure holding time is 45~55 s, the side edge pressure holding time is 27~33 s, and after the covering, the part is taken out, which is the hatchback luggage compartment hat rack part.

[0060] After the part is taken out in step S10, further manual edge trimming can be performed.

[0061] The product prepared by the above method has the following advantages: 1. The front and back surfaces of the part are formed in place, and there is no foaming out of place and no defect of non-solid part; 2. The part is a knitted fabric 1, which is covered on the back surface, and the back surface is also an A surface. Firstly, the edge of the fabric is easy to generate burrs, which affects the appearance. Here, the narrow gap can hide the edge; 3. The non-woven fabric 3 has good overall fluffiness and good appearance due to not being heated.

[0062] Example 2 The present embodiment provides a back-hinged car trunk clothes rack part, based on example 1, the specific parameters include: The knitted fabric 1 has a thickness of 1.5 mm and a grammage of 250 g / m 2 .

[0063] The grammage of the first PU layer and the second PU layer is 725 g / m 2 The total grammage of the first PU layer and the second PU layer is 1450 g / m 2 .

[0064] The thickness of the first glass fiber layer and the second glass fiber layer is 2.5 mm, and the grammage is 350 g / m 2 .

[0065] The paper core layer 23 is a honeycomb paper core; the thickness of the paper core layer 23 is 11 mm, and the grammage is 500 g / m 2 .

[0066] The non-woven fabric 3 has a thickness of 1.5 mm and a grammage of 130 g / m 2 .

[0067] The first adhesive layer 2-4 and the second adhesive layer 2-5 are both PU hot melt adhesive, and the grammage is greater than 50 g / m 2 .

[0068] Comparative Example As Figure 3 shown, the present comparative example provides a back-hinged car trunk clothes rack part on the market, which comprises a raised carpet 4, a PHC honeycomb plate, and a back non-woven fabric 8 arranged from top to bottom.

[0069] The PHC honeycomb plate and the raised carpet 4 are connected by an adhesive layer 5, which is hot melt adhesive.

[0070] The PHC honeycomb plate comprises a PHC upper layer substrate 6-1, a PHC paper core layer 7, and a PHC lower layer substrate 6-2 arranged from top to bottom.

[0071] The back nonwoven fabric 8 is a PET formed felt.

[0072] This structure is not a big problem for relatively flat parts, but for parts with knitted fabric, parts with R angle of only R2-R3, back with deep and narrow groove, and back with relatively high parts, will cause the forming to be not in place, and the appearance is poor.

[0073] Most of the side trim board felt parts on the market have a structure as shown in Figure 2 Generally, a pile carpet 4 + PHC honeycomb plate + PET formed felt is used, and an integrated forming process is used, that is, the pile carpet 4 and the PET formed felt are integrally bonded through the PHC honeycomb plate before forming. The PET formed felt is soft, and is easy to deform after long-term storage, and the sound insulation is poor, and the integrated forming process will cause the pile surface of the carpet to be poor.

[0074] The back nonwoven fabric of the back-up clothes rack is obviously improved in the pile feeling, and the R angle narrow gap forming effect of the back detail part is obviously improved. The edge of the knitted fabric is easy to form a hair after punching, which affects the appearance of the back. Here, the process is optimized, and the narrow gap and other characteristics of the back of the honeycomb plate are made. For such parts without non-visible surfaces, the appearance effect is optimized, and the problem of the back of the foaming part with nonwoven fabric not being formed in place is solved.

[0075] The above description of the embodiments is for the convenience of those skilled in the art to understand and use the invention. Those skilled in the art can easily make various modifications to these embodiments, and apply the general principles described herein to other embodiments without creative labor. Therefore, the present application is not limited to the above embodiments, and the improvements and modifications made by those skilled in the art according to the disclosure of the present application without departing from the scope of the present application should be within the scope of protection of the present application.

Claims

1. A hatchback car trunk coat rack part, characterized in that, The components include, from top to bottom, a knitted fabric (1), a honeycomb panel composite (2), and a non-woven fabric (3). The honeycomb composite (2) includes an upper substrate (21), a paper core layer (23), and a lower substrate (22) arranged sequentially from top to bottom. The upper substrate (21) includes a first PU layer (21) and a first glass fiber layer (22); The lower substrate (22) includes a second glass fiber layer (24) and a second PU layer (25).

2. A hatchback-type car trunk coat rack part according to claim 1, characterized in that, The knitted fabric (1) has a thickness of 1.2-1.8 mm and a weight of 220-280 g / m². 2 .

3. A hatchback-type car trunk coat rack part according to claim 1, characterized in that, The honeycomb panel composite (2) has a basis weight of 2385~2915 g / m³. 2 .

4. A hatchback-type car trunk coat rack part according to claim 1, characterized in that, The total basis weight of the first PU layer and the second PU layer is 1305~1595 g / m³. 2 .

5. A hatchback-type car trunk coat rack part according to claim 1, characterized in that, The thickness of both the first and second fiberglass layers is 2-3 mm, and their basis weight is 320-380 g / m². 2 .

6. A hatchback-type car trunk coat rack part according to claim 1, characterized in that, The paper core layer (23) is a honeycomb paper core; The paper core layer (23) has a thickness of 10-12 mm and a basis weight of 450-550 g / m³. 2 .

7. A hatchback-type car trunk coat rack part according to claim 1, characterized in that, The nonwoven fabric (3) has a thickness of 1~2mm and a basis weight of 117~143g / m³. 2 .

8. A method for manufacturing a hatchback car trunk coat rack part as described in any one of claims 1 to 7, characterized in that, Includes the following steps: Step 1: Stitch the first fiberglass layer, the second fiberglass layer and the paper core layer (23) together to obtain the customized honeycomb paper core; Step 2: Spray the PU material onto the custom-made honeycomb paper core obtained in Step 1. The sprayed PU material is foamed and molded to form the first PU layer and the second PU layer, thus obtaining the honeycomb panel composite (2). Step 3: Heat the honeycomb composite (2) obtained in Step 2, spray adhesive on the non-woven fabric (3), and bond the honeycomb composite (2) and the non-woven fabric (3) to obtain a non-woven honeycomb panel; Step 4: After spraying adhesive onto the knitted fabric (1), place it into the positioning mold of the edge-sealing fixture, and place the non-woven honeycomb board obtained in step 3 into the positioning mold of the edge-sealing fixture. Start the edge-sealing process, and after wrapping, obtain the part.

9. A method for manufacturing a hatchback car trunk coat rack part according to claim 8, characterized in that, Specifically, the steps include the following: S1: The first glass fiber layer, the second glass fiber layer and the paper core layer (23) are stapled together with staples. The first glass fiber layer and the second glass fiber layer are on the top and bottom respectively, and the paper core layer (23) is in the middle to obtain the customized honeycomb paper core. S2: After the PU material is sprayed onto the customized honeycomb paper core obtained in step S1 by a robotic arm along a certain trajectory, it is directly laid on the honeycomb foaming mold, the mold is closed, and foaming is formed to form the first PU layer and the second PU layer, thus obtaining the honeycomb board composite (2). S3: Take the honeycomb panel composite (2) obtained in step S2 out of the honeycomb foaming mold and stack it; S4: Take out the honeycomb composite (2) stacked from the honeycomb foaming mold, heat it and put it into the honeycomb bonding and punching mold. Then, spray glue on the non-woven fabric (3) according to a certain trajectory by the robot arm. The glue surface is laid flat in the honeycomb bonding and punching mold with the direction of the honeycomb composite (2). Close the mold, bond the non-woven fabric (3) and the waste material at the punching edge to obtain the non-woven honeycomb board. S5: After the non-woven honeycomb panel is laminated in step S4, the non-woven honeycomb panel is taken out from the honeycomb panel bonding and punching mold and stacked. S6: Cut the knitted fabric (1) with a die to obtain the cut knitted fabric; S7: The die-cut knitted fabric obtained in step S6 is sprayed with glue by a glue spraying robot along a certain preset trajectory to obtain the glued knitted fabric. S8: Place the knitted fabric sprayed with glue obtained in step S7 into the positioning mold of the edge binding tool; S9: Place the non-woven honeycomb panel obtained in step S4 into the positioning mold of the edge-sealing tooling; S10: After executing step S9, start the edge-wrapping fixture, wrap the parts, and then take out the parts, which are the hatchback car trunk coat rack parts.

10. A method for manufacturing a hatchback car trunk coat rack part according to claim 9, characterized in that, In step S2, the temperature of the honeycomb foaming mold is 110-130℃, the pre-compression time is 15-25 s, the venting time is 3-7 s, the holding time is 55-65 s, and the pressure setting is 8-12 MPa. In step S4, the heating temperature is 115~125℃, the heating time is 15~25s, the pressure is maintained during heating, the pressure is 8~17Mpa, and the pressure holding time is 40-70s. In step S10, pressure is applied to the large surface and the sides during the wrapping process. The pressure application time for the large surface is 45-55 seconds, and the pressure application time for the sides is 27-33 seconds.

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