Arc angle adjustable mold for plastic uptake
By designing a detachable arc module that works with a threaded rod, the problem of blister molds being unable to process arc shapes was solved, enabling diversified production and cost reduction.
Patent Information
- Application Number
- CN202423095146.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-16
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2034-12-16
AI Technical Summary
Existing vacuum forming molds cannot effectively process curved shapes, resulting in a low pass rate for curved shape finishing strips. Furthermore, traditional processes require expensive paint or mold replacement, increasing costs.
Design a detachable arc module that works with a base and plates in a vacuum forming mold. The arc angle can be adjusted by a threaded rod and a top plate fixing assembly to adapt to different curvature and angle shaping requirements.
It has enabled mass production of different curvatures and angles, reduced production costs, met diverse market demands, and reduced reliance on expensive paints.
Smart Images

Figure CN223777771U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mold technology, and in particular to an adjustable arc angle mold for vacuum forming. Background Technology
[0002] In the field of thermoforming, when forming workpieces (such as refrigerator liners), a heated film (such as polyester film) is usually placed on a thermoforming mold. The thermoforming mold has a forming cavity, and the upper template is equipped with an air extraction channel. One end of the air extraction channel is connected to the cavity, and the other end is connected to a vacuum pump. The vacuum pump draws a vacuum in the cavity through the air extraction channel, so that the material is formed into a product under the action of pressure difference.
[0003] Vacuum-formed products are widely used in whole-house custom furniture and cabinets, but the following problems exist in the actual vacuum forming process:
[0004] 1. Due to limitations in processes such as vacuum forming, it is impossible to process arc-shaped trim strips, resulting in a very low product qualification rate for arc-shaped trim strips.
[0005] 2. Traditional vacuum forming processes do not use rounded edge strips and instead use right-angle shapes; or they use more expensive paint products, which cannot meet the needs of end consumers for product variety, safety and reasonable prices. Utility Model Content
[0006] In order to overcome the defects of the prior art mentioned above, the inventors conducted in-depth research and, after a great deal of creative work, completed this utility model.
[0007] Specifically, the technical problem to be solved by this utility model is to provide an adjustable arc angle mold for vacuum forming, so as to solve the technical problem that current vacuum forming molds cannot process arc shapes, vacuum forming models cannot be reused, and when producing shaped trim strips with different arcs or angles, it is necessary to use corresponding molds, which increases production costs.
[0008] To solve the above-mentioned technical problems, the present invention provides the following technical solution:
[0009] An adjustable arc angle mold for vacuum forming includes a first mold, wherein a plate is provided on the inner surface of the first mold, and a second mold is provided on the inner surface of the plate.
[0010] The first mold includes a base with side fixing holes on both sides and a bottom fixing hole at the bottom. The first mold also includes a detachable arc module. The inner surface of the detachable arc module is fixedly connected to the outer surface of the base through a fixing component. The bottom of the detachable arc module has a bottom connecting hole, and the two detachable arc modules have side connecting holes on the sides that are far apart from each other.
[0011] As an improved technical solution, the fixing component includes threaded rods, the outer surfaces of the two threaded rods are threadedly connected to the inner surfaces of the side fixing hole and the bottom fixing hole, and one end of the two threaded rods respectively passes through the bottom connecting hole and the side connecting hole and extends to the outside of the bottom connecting hole and the side connecting hole.
[0012] As an improved technical solution, the fixing assembly further includes a top plate, one side of which is fixedly connected to the other end of the threaded rod, and the outer surfaces of both top plates are rotatably connected to the inner surfaces of the bottom connecting hole and the side connecting hole.
[0013] As an improved technical solution, the fixing component also includes a hexagonal block, one side of which is fixedly connected to the other side of the top plate.
[0014] After adopting the above technical solution, the beneficial effects of this utility model are:
[0015] 1. This utility model adds a design that allows for vacuum forming of arc-shaped finishing strips. Through the use of the base and detachable arc module in conjunction with the plate and the second mold, it is possible to develop finishing strips with different curvatures and angles according to market demands, realize the mass production of vacuum-formed finishing strips with different curvatures, and meet a wider range of design needs.
[0016] 2. This utility model, by adding a detachable and adjustable arc angle mold design, uses the base and detachable arc module in conjunction with the threaded rod and top plate, the side fixing holes and bottom fixing holes in conjunction with the bottom connecting hole and the side connecting hole, and the side fixing holes and bottom fixing holes in conjunction with the threaded rod. This allows detachable arc modules of different specifications and arc angles to be fixed on the base, eliminating the need to use molds with corresponding arc angles when vacuum forming plates with different arc angles, thus reducing the production cost of vacuum forming strips. Attached Figure Description
[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:
[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the adjustable arc angle mold for vacuum forming according to this utility model.
[0019] Figure 2 This is an exploded view of the No. 1 mold, the plate, and the No. 2 mold for the adjustable arc angle vacuum forming mold of this utility model.
[0020] Figure 3 This is a three-dimensional structural diagram of the base of the adjustable arc angle mold for vacuum forming according to this utility model.
[0021] Figure 4 This is a three-dimensional structural diagram of the fixing component of the adjustable arc angle mold for vacuum forming according to this utility model.
[0022] Figure 5 This is a three-dimensional structural diagram of the detachable arc module of the adjustable arc angle mold for vacuum forming according to this utility model.
[0023] Explanation of reference numerals in the attached figures:
[0024] 1. Mold No. 1; 11. Base; 12. Side fixing hole; 13. Bottom fixing hole; 14. Detachable arc module; 15. Fixing component; 151. Threaded rod; 152. Top plate; 153. Hexagonal block; 16. Bottom connecting hole; 17. Side connecting hole; 2. Plate; 3. Mold No. 2. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.
[0027] Meanwhile, the meaning of "and / or" or "and / or" appearing throughout the text is that it includes three options. Taking "A and / or B" as an example, it includes option A, option B, or an option that satisfies both A and B.
[0028] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.
[0029] like Figure 1 , Figure 2 and Figure 5 As shown in the figure, this embodiment provides a mold with an adjustable arc angle for vacuum forming. The mold with an adjustable arc angle for vacuum forming includes a first mold 1, a plate 2 is provided on the inner surface of the first mold 1, and a second mold 3 is provided on the inner surface of the plate 2.
[0030] Mold No. 1 includes a base 11, with side fixing holes 12 on both sides and a bottom fixing hole 13 at the bottom. Mold No. 1 also includes a detachable arc module 14, the inner surface of which is fixedly connected to the outer surface of the base 11 by a fixing component 15. The bottom of the detachable arc module 14 has a bottom connecting hole 16, and the two detachable arc modules 14 each have a side connecting hole 17 on the side that is far apart from each other.
[0031] Mold No. 3 has a fixing function: during film coating, it prevents the board 2 from being squeezed and deviating. At the same time, Mold No. 3 also has a supporting function: if Mold No. 3 does not provide support during film coating, the board 2 will be damaged due to the squeezing of the silicone airbag. Mold No. 3 ensures that the board 2 is subjected to balanced force during the vacuum forming process and does not crack. At the same time, Mold No. 3 can raise the board 2 so that the film can cover the board to the maximum extent.
[0032] Mold 1 serves several functions: First, it provides stability, preventing sheet 2 from shifting due to pressure during lamination. Second, it provides support, as sheet 2 would be damaged by the silicone airbags if not supported during lamination. Third, it elevates sheet 2 to maximize the film's coverage. Fourth, a 5mm straight edge is left inside to allow for airflow, ensuring a closer fit between the product and mold 1 when pressurized. Finally, it facilitates product removal after processing.
[0033] like Figure 1 and Figure 4As shown, the fixing assembly 15 includes threaded rods 151. The outer surfaces of the two threaded rods 151 are threadedly connected to the inner surfaces of the side fixing hole 12 and the bottom fixing hole 13. One end of the two threaded rods 151 passes through the bottom connecting hole 16 and the side connecting hole 17 respectively and extends to the outside of the bottom connecting hole 16 and the side connecting hole 17.
[0034] like Figure 1 and Figure 4 As shown, the fixing assembly 15 also includes a top plate 152, one side of which is fixedly connected to the other end of the threaded rod 151, and the outer surfaces of both top plates 152 are rotatably connected to the inner surfaces of the bottom connecting hole 16 and the side connecting hole 17.
[0035] like Figure 1 and Figure 4 As shown, the fixing assembly 15 also includes a hexagonal block 153, one side of which is fixedly connected to the other side of the top plate 152.
[0036] During use, the user replaces the corresponding detachable arc module 14 according to the arc angle of the plate 2. The user first places the detachable arc module 14 on the base 11, and then inserts the fixing component 15 into the bottom connecting hole 16 or the side connecting hole 17, so that the threaded rod 151 is threadedly connected to the bottom fixing hole 13 or the side fixing hole 12, so that the threaded rod 151 moves the top plate 152 inward, and fixes the detachable arc module 14 to the base 11. When the plate 2 is vacuum-formed, the user first places the plate 2 on the second mold 3, and then the vacuum forming device heats the plastic film. Then the lifting mechanism pushes the second mold 3, and the second mold 3 moves the plate 2 upward, squeezing the plate 2 against the plastic film into the first mold 1. Then the suction device sucks air from the plastic film, so that the plastic film adheres tightly to the plate 2, thereby quickly producing a large number of sealing strips.
[0037] It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. Furthermore, it should be understood that after reading the technical description of this utility model, those skilled in the art can make various alterations, modifications, and / or variations to this utility model, and all such equivalent forms also fall within the scope of protection defined by the appended claims.
Claims
1. A thermoforming mold with an adjustable arc angle, comprising a first mold (1), characterized in that: The inner surface of the first mold (1) is provided with a plate (2), and the inner surface of the plate (2) is provided with a second mold (3). The first mold (1) includes a base (11), with side fixing holes (12) on both sides of the base (11) and a bottom fixing hole (13) at the bottom of the base (11). The first mold (1) also includes a detachable arc module (14), the inner surface of which is fixedly connected to the outer surface of the base (11) by a fixing component (15). The bottom of the detachable arc module (14) has a bottom connecting hole (16), and the two detachable arc modules (14) have side connecting holes (17) on the sides that are far apart from each other.
2. The adjustable arc angle mold for vacuum forming according to claim 1, characterized in that: The fixing component (15) includes threaded rods (151), the outer surfaces of the two threaded rods (151) are threaded to the inner surfaces of the side fixing hole (12) and the bottom fixing hole (13), and one end of the two threaded rods (151) respectively passes through the bottom connecting hole (16) and the side connecting hole (17) and extends to the outside of the bottom connecting hole (16) and the side connecting hole (17).
3. The adjustable arc angle mold for vacuum forming according to claim 2, characterized in that: The fixing assembly (15) also includes a top plate (152), one side of which is fixedly connected to the other end of the threaded rod (151), and the outer surfaces of both top plates (152) are rotatably connected to the inner surfaces of the bottom connecting hole (16) and the side connecting hole (17).
4. The adjustable arc angle mold for vacuum forming according to claim 2, characterized in that: The fixing component (15) also includes a hexagonal block (153), one side of which is fixedly connected to the other side of the top plate (152).