Integrated mold for carpet ornament of automobile trunk

By designing an integrated mold for automotive trunk carpet trim, using upper and lower die cutters to cut velvet and burlap, and combining a guiding and impact-absorbing structure, the fatigue and accuracy problems caused by manual placement of velvet are solved, thus improving mold life and product quality.

CN223777394UActive Publication Date: 2026-01-09BEIJING HAINACHUANRUIYANXINGGU AUTO PARTS CO LTD
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Patent Information

Application Number
CN202520128487.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-20
Publication Date
2026-01-09
Estimated Expiration
2035-01-20

AI Technical Summary

Technical Problem

Existing molds for car trunk carpet trim rely on manual placement and cutting of the fabric, leading to worker fatigue, reduced accuracy, and impacting product appearance and performance.

Method used

Design a mold system that includes an upper mold and a lower mold, using the upper and lower mold cutters to simultaneously cut velvet and hemp board, combined with guide rods, baffles and elastic elements to absorb impact energy, guide blocks and guide pillars for guidance, and lifting rings to ensure stability and reduce wear and misalignment.

Benefits of technology

It improves the service life and production efficiency of molds, enhances the appearance and performance of car trunk carpet trim, and reduces reliance on manual labor and labor intensity.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of automobile interior trim part molds, in particular to an automobile trunk carpet trim part integrated mold which comprises a lower mold body fixed to a press workbench and an upper mold body fixed to a press sliding block, the lower mold body comprises a bottom plate, a lower mold plate is arranged on the bottom plate, a fixed mold body is formed on the lower mold plate in a machined mode, and the fixed mold body is fixed to the upper mold body. A male die is formed on the fixed die in a machining mode, and a lower die cutter is formed in the fixed die in a machining mode. The upper die comprises a top plate, an upper die plate matched with the lower die plate is arranged on the top plate, a floating die is formed in the upper die plate through machining, a floating die cavity matched with the male die is formed in the floating die through machining, an upper die cutter is formed in the upper die plate through machining, and a cloth hanging nail is arranged on the upper die. The number of the cloth hanging nails is at least two, and the effect of improving the appearance and performance of the carpet ornament of the automobile trunk is achieved.
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Description

Technical Field

[0001] This application relates to the field of automotive interior parts molds, and in particular to an integrated mold for automotive trunk carpet trim. Background Technology

[0002] Car trunk carpets are carpets installed inside the trunk of a car. They not only cover and isolate the spare tire compartment, ensuring a flat and consistent layout of the trunk, but also serve multiple functions such as decoration, sound insulation, and load-bearing capacity. Most existing car trunk carpets are made of a composite of hemp board and fleece.

[0003] Existing automotive trunk carpet trim molds typically include a fixed lower mold, a movable upper mold, and a press. The heated hemp board is placed on the lower mold platen, and then the plush fabric is cut separately by hand or additional cutting equipment. The cut plush fabric is then placed on the upper mold by the staff, and the press is started to close the upper and lower molds and press them together. After the composite shaping is completed, the mold is opened and the finished product is taken out.

[0004] The existing technical solutions mentioned above have the following drawbacks: manually placing the cut velvet requires a high level of experience and skill from the workers, and the large amount of repetitive labor can easily cause worker fatigue, leading to a decrease in the accuracy of placing the velvet, which in turn leads to poor product appearance and reduced performance. Utility Model Content

[0005] This application provides an integrated mold for automotive trunk carpet trim to improve the appearance and performance of automotive trunk carpet trim.

[0006] The above-mentioned technical objective of this application is achieved through the following technical solution:

[0007] An integrated mold for car trunk carpet trim includes a lower mold fixed on a press worktable and an upper mold fixed on a press slide. The lower mold includes a base plate, a lower template is provided on the base plate, a fixed mold is machined on the lower template, a punch is machined on the fixed mold, and a lower die cutter is machined inside the fixed mold.

[0008] The upper mold includes a top plate, on which an upper mold plate is provided to cooperate with the lower mold plate. A floating mold is machined inside the upper mold plate, and a floating mold cavity that cooperates with the punch is machined on the floating mold plate. An upper mold cutter is machined inside the upper mold plate, and a cloth hanging nail is provided on the upper mold plate, with at least two cloth hanging nails provided.

[0009] By adopting the above technical solution, the heated hemp board is placed on the lower template, and then the pre-cut velvet is passed through the hanging nails to fix the velvet at the floating mold of the upper mold. The press is started to drive the upper mold to move towards the lower mold for mold closing and pressing. At this time, the upper mold knife and the lower mold knife cut the velvet and the hemp board respectively. By cutting the velvet and the hemp board simultaneously with the upper mold knife and the lower mold knife, the wear caused by the mold knife cutting different materials is reduced, the service life of the upper mold knife and the lower mold knife is extended, and the appearance and performance of the car trunk carpet trim are improved.

[0010] Optionally, the lower die cutter is disposed along the edge of the fixed mold, and the two ends of the upper die cutter are respectively connected to the floating mold. After the upper mold and the lower mold are closed, the upper die cutter is located inside the lower die cutter.

[0011] By adopting the above technical solution, after the mold is closed and pressed, the upper mold cutter is located inside the lower mold cutter, which can reduce the risk of blade damage caused by the collision between the upper and lower mold cutters, extend the service life of the upper and lower mold cutters, and improve the appearance and performance of the car trunk carpet trim.

[0012] Optionally, a guide rod is provided through the base plate, at least two guide rods are provided, a baffle is sleeved on the guide rod, and an elastic element is sleeved on the guide rod. The elastic element is located between the baffle and the base plate. A third guide hole is provided on the top plate to cooperate with the guide rod, and at least two third guide holes are provided.

[0013] By adopting the above technical solutions, the impact energy between the upper and lower molds can be absorbed and dispersed when the press drives the upper mold to close the mold, reducing the direct impact between the upper and lower molds, lowering the risk of damage to the hemp board and velvet due to excessive impact force, improving the appearance and performance of the car trunk carpet trim, and the elastic force of the elastic element can push the upper mold away from the lower mold when the mold is opened, which is conducive to the mold opening work and improves production efficiency. The third guide hole can limit the guide rod, reduce the skewing or deformation of the elastic element under pressure, ensure the stability and accuracy of the mold closing, and improve the appearance and performance of the car trunk carpet trim.

[0014] Optionally, a pad is fixed to the base plate, and multiple pads are provided.

[0015] By adopting the above technical solution, the high pressure generated on the surface when the mold is closed and pressed can be dispersed, thereby reducing the pressure on the mold, reducing mold damage, and improving the service life of the mold.

[0016] Optionally, the base plate is provided with guide blocks, at least two of which are provided. A first guide post is fixedly connected to the guide block, and the top plate is provided with a first guide hole that cooperates with the first guide post. At least two first guide holes are provided.

[0017] By adopting the above technical solution, it is possible to guide the upper mold during the mold closing and opening process driven by the press, thereby reducing the appearance defects and performance degradation of the finished product caused by misalignment or displacement of the upper and lower molds when they are closed, and improving the appearance and performance of the car trunk carpet trim.

[0018] Optionally, one end of the first guide post is machined to form a chamfer.

[0019] By adopting the above technical solution, the chamfer of the first guide post can increase the smoothness of the end of the first guide post, making it easier to insert and position, and reducing friction and resistance during the assembly process.

[0020] Optionally, the base plate is provided with a second guide post, and at least two second guide posts are provided. The top plate is provided with a second guide hole that cooperates with the second guide post, and at least two second guide holes are provided.

[0021] By adopting the above technical solution, it is possible to guide the upper mold during the mold closing and opening process driven by the press, thereby reducing the appearance defects and performance degradation of the finished product caused by misalignment or displacement of the upper and lower molds when they are closed, and improving the appearance and performance of the car trunk carpet trim.

[0022] Optionally, both the base plate and the top plate are provided with lifting rings.

[0023] By adopting the above technical solution, the upper or lower mold can be securely suspended on the lifting equipment by the lifting ring, ensuring the stability of the mold during movement and reducing the risk of damage caused by the mold falling during the movement.

[0024] In summary, this application has the following technical effects:

[0025] 1. By setting up upper and lower die cutters, the upper and lower die cutters can cut velvet and hemp board respectively, reducing the wear caused by the die cutters cutting different materials. After the mold is closed and pressed, the upper die cutter is located inside the lower die cutter, which can reduce the risk of blade damage caused by the collision between the upper and lower die cutters, extend the service life of the upper and lower die cutters, and improve the appearance and performance of the car trunk carpet trim.

[0026] 2. By incorporating guide rods, baffles, and elastic components, the impact energy between the upper and lower molds can be absorbed and dispersed when the press drives the upper mold to close the mold. This reduces the direct impact between the upper and lower molds, lowers the risk of damage to hemp board and velvet due to excessive impact force, and improves the appearance and performance of the car trunk carpet trim. When the mold opens, the elastic force of the elastic components can push the upper mold away from the lower mold, which is beneficial for mold opening and improves production efficiency.

[0027] 3. By setting guide blocks, first guide pillars and first guide holes, the press can guide the upper mold during the mold closing and opening process, reducing the appearance defects and performance degradation of the finished product caused by misalignment or offset of the upper and lower molds when closing, and improving the appearance and performance of the car trunk carpet trim. Attached Figure Description

[0028] Figure 1 This is a top view of the mold under this application;

[0029] Figure 2 This is the front view of the mold under this application;

[0030] Figure 3 This is a top view of the mold in this application;

[0031] Figure 4 This is the left view of the mold in this application.

[0032] Explanation of reference numerals in the attached drawings: 1. Lower mold; 11. Base plate; 12. Lower template; 13. Fixed mold; 14. Punch; 15. Lower die cutter; 2. Upper mold; 21. Top plate; 22. Upper template; 23. Floating mold; 24. Upper die cutter; 25. Fabric hanging nail; 3. Guide block; 31. First guide post; 32. First guide hole; 4. Second guide post; 41. Second guide hole; 5. Guide rod; 51. Baffle; 52. Elastic element; 53. Third guide hole; 6. Pad block; 7. Lifting ring. Detailed Implementation

[0033] The present application will be further described in detail below with reference to the accompanying drawings.

[0034] This application discloses an integrated mold for automotive trunk carpet trim, referring to... Figure 1 and Figure 2 The mold includes a lower mold 1 fixed on the press worktable and an upper mold 2 fixed on the press slide. The lower mold 1 includes a base plate 11, the surface of which is rectangular. A cuboid lower template 12 is provided on the base plate 11. A fixed mold 13 is machined on the side of the lower template 12 away from the base plate 11. The fixed mold 13 is used to place the heated hemp board. An opening is provided on one side of the fixed mold 13. The top surface of the opening of the fixed mold 13 is flush with a section of the lower template 12 that is away from the side wall of the base plate 11 in the length direction. A punch 14 is machined at the end of the top surface of the fixed mold 13 that is away from the base plate 11 in the length direction. A lower die cutter 15 for cutting the hemp board is machined inside the fixed mold 13. The lower die cutter 15 is set along the inner edge of the fixed mold 13.

[0035] Reference Figure 3 and Figure 4The upper mold 2 includes a top plate 21, the surface of which is rectangular. An upper mold 22 that mates with the lower mold 12 is provided on the top plate 21. The upper mold 22 is cuboid and one side wall along its length is flush with one side wall along the length of the top plate 21. A floating mold 23 is formed inside the upper mold 22. A floating mold cavity that mates with the punch 14 is formed on the floating mold 23. The floating mold 23 is located at the end of the upper mold 22 that is away from the edge of the top plate 21 along its length. An upper mold cutter 24 for cutting velvet is formed inside the upper mold 22. The two ends of the upper mold cutter 24 are respectively connected to the section of the floating mold 23 near the upper mold 22. After the upper mold 2 and the lower mold 1 are closed, the upper mold cutter 24 is located inside the lower mold cutter 15.

[0036] Reference Figure 3 and Figure 4 The bottom surfaces of the upper template 22 and the top plate 21 are symmetrically provided with two hanging nails 25 along the center line of the length direction of the upper template 22. The two hanging nails 25 on the upper template 22 are located on the outside of the upper mold cutter 24 of the upper template 22 away from the floating mold 23. The two hanging nails 25 on the top plate 21 are located on the width direction of the top plate 21 close to the upper template 22.

[0037] When using this mold, place the heated hemp board on the lower mold plate, and then pass the pre-cut velvet through the hanging nail 25 to fix the velvet at the floating mold 23 of the upper mold 2. Start the press to move the upper mold 2 towards the lower mold 1 for mold closing and pressing. At this time, the upper mold cutter 24 and the lower mold cutter 15 cut the velvet and hemp board respectively. By cutting the velvet and hemp board simultaneously with the upper mold cutter 24 and the lower mold cutter 15, the wear caused by the mold cutter cutting different materials is reduced. After the mold is closed and pressed, the upper mold cutter 24 is located inside the lower mold cutter 15, which can reduce the risk of blade damage caused by the collision between the upper mold cutter 24 and the lower mold cutter 15, extend the service life of the upper mold cutter 24 and the lower mold cutter 15, and improve the appearance and performance of the car trunk carpet trim.

[0038] Reference Figure 1 and Figure 2 Two guide blocks 3 are symmetrically arranged on both ends of the top surface of the base plate 11 along the length direction. The end face of the guide block 3 away from the base plate 11 is fixed to the first guide post 31 by bolts. The end face of the first guide post 31 away from the guide block 3 is chamfered.

[0039] Reference Figure 3 The top plate 21 is provided with four first guide holes 32 that cooperate with the first guide post 31.

[0040] The first guide post 31 can guide the upper mold 2 during the mold closing and opening process driven by the press, reducing the appearance defects and performance degradation of the finished product caused by misalignment or offset of the upper mold 2 and lower mold 1 when closing, and improving the appearance and performance of the car trunk carpet trim. The chamfer of the first guide post 31 can increase the smoothness of the end of the first guide post 31, making it easier to insert and position, and reducing friction and resistance during the assembly process.

[0041] Reference Figure 1 and Figure 2 Two second guide posts 4 are symmetrically arranged at both ends of the length direction on the top surface of the base plate 11, and each pair of symmetrically arranged second guide posts 4 is located between two first guide posts 31 at one end of the length direction of the base plate 11.

[0042] Reference Figure 3 The top plate 21 has four second guide holes 41 that cooperate with the second guide post 4.

[0043] The second guide post 4 can guide the upper mold 2 during the mold closing and opening process driven by the press, reducing the appearance defects and performance degradation of the finished product caused by misalignment or offset of the upper mold 2 and lower mold 1 when they are closed, and improving the appearance and performance of the car trunk carpet trim.

[0044] Reference Figure 1 and Figure 2 A guide rod 5 is provided on the top surface of the base plate 11. There are four guide rods 5, which are distributed in a rectangular shape on both sides of the base plate 11 near the length direction of the fixed mold. A baffle 51 is sleeved on the guide rod 5, and an elastic element 52 is sleeved on the guide rod 5. In this embodiment, the elastic element 52 is an elastic pad 6, which is located between the baffle 51 and the base plate 11.

[0045] The elastic element 52 can absorb and disperse the impact energy between the upper mold 2 and the lower mold 1 when the press drives the upper mold 2 to move and close the mold, reduce the direct impact between the upper mold 2 and the lower mold 1, reduce the risk of damage to the hemp board and velvet due to excessive impact force, and improve the appearance and performance of the car trunk carpet trim. When the mold is opened, the elastic force of the elastic element 52 can push the upper mold 2 away from the lower mold 1, which is conducive to the mold opening work and improves production efficiency.

[0046] Reference Figure 3 The bottom surface of the top plate 21 is provided with a third guide hole 53 that mates with the guide rod 5. There are four third guide holes 53. The third guide holes 53 can limit the guide rod 5, reduce the skewing or deformation of the elastic element 52 under pressure, ensure the stability and accuracy of mold closing, and improve the appearance and performance of the car trunk carpet trim.

[0047] Reference Figure 1A pad 6 is bolted to the top surface of the base plate 11, and multiple pads 6 are spaced apart along the periphery of the lower template 12. The pads 6 can disperse the high pressure generated on the surface when the mold is closed and pressed, thereby reducing the pressure on the mold, reducing mold damage, and improving the service life of the mold.

[0048] Reference Figure 1 and Figure 3 Two lifting rings 7 are symmetrically provided on the side walls at both ends of the base plate 11 and the top plate 21 along their length. The lifting rings 7 are fixed to the side walls of the base plate 11 or the top plate 21 by bolts. The lifting rings 7 can securely suspend the upper mold 2 or the lower mold 1 on the lifting equipment, ensuring the stability of the mold during movement and reducing the risk of damage caused by the mold falling during movement.

[0049] This specific embodiment is merely an explanation of this application and is not intended to limit it. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this application.

Claims

1. An integrated mold for automotive trunk carpet trim, characterized in that: The mold includes a lower mold (1) fixed on the press worktable and an upper mold (2) fixed on the press slide. The lower mold (1) includes a base plate (11), a lower template (12) is provided on the base plate (11), a fixed mold (13) is formed on the lower template (12), a punch (14) is formed on the fixed mold (13), and a lower die cutter (15) is formed inside the fixed mold (13). The upper mold (2) includes a top plate (21), on which an upper template (22) is provided to cooperate with the lower template (12). A floating mold (23) is formed in the upper template (22), and a floating mold cavity that cooperates with the punch (14) is formed in the floating mold (23). An upper mold cutter (24) is formed in the upper template (22), and a cloth hanging nail (25) is provided on the upper mold (2). At least two cloth hanging nails (25) are provided.

2. The integrated mold for automotive trunk carpet trim as described in claim 1, characterized in that: The lower die cutter (15) is arranged along the edge of the fixed mold (13), and the two ends of the upper die cutter (24) are respectively connected to the floating mold (23). After the upper mold (2) and the lower mold (1) are closed, the upper die cutter (24) is located inside the lower die cutter (15).

3. The integrated mold for automotive trunk carpet trim as described in claim 2, characterized in that: Guide rods (5) are provided on the base plate (11). There are at least two guide rods (5). A baffle (51) is sleeved on the guide rod (5). An elastic element (52) is sleeved on the guide rod (5). The elastic element (52) is located between the baffle (51) and the base plate (11). A third guide hole (53) is provided on the top plate (21) to cooperate with the guide rod (5). There are at least two third guide holes (53).

4. The integrated mold for automotive trunk carpet trim as described in claim 3, characterized in that: A pad (6) is fixedly connected to the base plate (11), and multiple pads (6) are provided.

5. The integrated mold for automotive trunk carpet trim as described in claim 1, characterized in that: The bottom plate (11) is provided with guide blocks (3), and there are at least two guide blocks (3). A first guide post (31) is fixedly connected to the guide block (3). The top plate (21) is provided with a first guide hole (32) that cooperates with the first guide post (31). There are at least two first guide holes (32).

6. The integrated mold for automotive trunk carpet trim as described in claim 5, characterized in that: One end of the first guide post (31) is machined to form a chamfer.

7. The integrated mold for automotive trunk carpet trim as described in claim 6, characterized in that: The base plate (11) is provided with a second guide post (4), and there are at least two second guide posts (4). The top plate (21) is provided with a second guide hole (41) that cooperates with the second guide post (4), and there are at least two second guide holes (41).

8. The integrated mold for automotive trunk carpet trim as described in claim 1, characterized in that: Both the bottom plate (11) and the top plate (21) are provided with lifting rings (7).