Plastic secondary blister forming device

Abstract

The utility model discloses a plastic secondary blister forming device which comprises an upper mold and a lower mold, a forming plate is arranged between the upper mold and the lower mold, the forming plate is completely wrapped by the upper mold and the lower mold, and the forming plate is detachably connected with the lower mold; the forming plate comprises a forming plate body and a plurality of forming combination bodies, each forming combination body is provided with two first protruding parts and a second protruding part located between the two first protruding parts, the first protruding parts and the second protruding parts are spaced, and the first protruding parts and the second protruding parts are integrally formed with the forming plate body. The lower die comprises a lower die body and a plurality of alignment structures, and the forming assembly directly faces the alignment structures; the forming plate body is provided with a plurality of forming plate through holes. The plastic secondary blister forming device disclosed by the utility model has the beneficial effects that in the process of pressing the forming assembly of the forming plate into the alignment structure of the lower mold by the upper mold, the internal and external air pressure balance at the plastic material is kept, and a local vacuum environment is prevented from being formed.

Description

Technical Field

[0001] This utility model belongs to the field of plastic molds, and specifically relates to a plastic secondary vacuum forming device. Background Technology

[0002] The patent, with publication number CN217435007U, is entitled "Utility Model Patent for a Single-Layer Sheet Vacuum Embossing One-Time Molding Mold," and IPC classification number B29C51 / 36. Its technical solution discloses that "the heat dissipation component includes a heat dissipation aluminum box and heat dissipation aluminum fins. A hinge is detachably connected to the upper end of the model plate, and a heat dissipation aluminum box is detachably connected to the other end of the hinge. Heat dissipation aluminum fins are fixedly connected to the inner side wall of the heat dissipation aluminum box. A connecting ring is fixedly connected to the lower end of the model plate, and a connecting rope is tied to the lower end of the connecting ring. The adsorption component includes an air cylinder, an air column, a pull handle, and an adsorption plate."

[0003] Therefore, the above utility model patents have disclosed one technical solution for a one-time vacuum forming mold for plastic materials. However, the technical solution disclosed in the above utility model patents focuses on solving the problem of long product production cycle and low work efficiency caused by natural cooling after vacuum forming of a one-time forming mold for vacuum forming of single-layer sheet material, but does not further solve the problem of preventing the formation of a local vacuum environment, and needs further improvement. Utility Model Content

[0004] This utility model addresses the shortcomings of the existing technology by providing a plastic secondary vacuum forming device.

[0005] This utility model adopts the following technical solution: a plastic secondary vacuum forming device, including an upper mold and a lower mold, with a forming plate provided between the upper mold and the lower mold. The forming plate is completely covered by the upper mold and the lower mold, and the forming plate is detachably connected to the lower mold, wherein:

[0006] The molding plate includes a molding plate body and multiple molding assemblies. Each molding assembly has two first protrusions and a second protrusion located between the two first protrusions. There is a gap between the first protrusions and the second protrusions. The first protrusions and the second protrusions are integrally formed with the molding plate body.

[0007] The lower mold includes the lower mold body and multiple alignment structures, and the molding assembly is directly opposite the alignment structures;

[0008] The forming plate body has multiple forming plate through holes.

[0009] As a preferred technical solution of the above technical solutions, the docking structure includes multiple lower mold protrusions, which are integrally formed with the lower mold body. There is a gap between two adjacent lower mold protrusions. The lower mold body has multiple lower mold grooves, and the lower mold protrusions are centrally distributed in the lower mold grooves.

[0010] As a preferred embodiment of the above technical solution, the transverse cross-section of the first protrusion is straight, and the transverse cross-section of the second protrusion is W-shaped.

[0011] As a preferred technical solution of the above technical solution, the second protrusion is provided with a second segment and two first segments, the two first segments are distributed in parallel, and the two first segments are integrally formed with the second segment respectively.

[0012] As a preferred technical solution to the above technical solutions, the upper mold has an upper mold through hole, which is centrally distributed relative to the upper mold.

[0013] The plastic secondary vacuum forming device disclosed in this utility model has the advantage of maintaining the internal and external air pressure balance at the plastic material during the process of the upper mold pressing the forming plate assembly into the alignment structure of the lower mold, thus preventing the formation of a local vacuum environment. Attached Figure Description

[0014] Figure 1 This is a perspective view of this application.

[0015] Figure 2 This is a three-dimensional view from another perspective of this application.

[0016] Figure 3 This is a perspective view of the upper mold of this application.

[0017] Figure 4 This is a three-dimensional view of the upper mold of this application from another perspective.

[0018] Figure 5 This is a perspective view of the molded plate of this application.

[0019] Figure 6 This is a perspective view of the molded plate of this application from another angle.

[0020] Figure 7 This is a perspective view of the lower mold of this application.

[0021] Figure 8 This is a perspective view of the lower mold of this application from another angle.

[0022] The reference numerals in the accompanying drawings include: 100-upper mold; 101-upper mold through hole; 200-lower mold; 201-alignment structure; 210-lower mold body; 220-lower mold groove; 230-lower mold protrusion; 300-forming plate; 301-forming assembly; 310-first protrusion; 320-second protrusion; 321-first segment; 322-second segment; 330-forming plate body; 331-forming plate through hole. Detailed Implementation

[0023] This utility model discloses a plastic secondary vacuum forming device. The following description, in conjunction with a preferred embodiment (Embodiment 1), is shown in the accompanying drawings. Figures 1 to 8 The specific embodiments of this utility model will be further described below.

[0024] See attached diagram. Figures 1 to 8 , Figure 1 and Figure 2 The plastic secondary vacuum forming device is shown from different perspectives. Figure 3 and Figure 4 The upper mold is shown from different perspectives. Figure 5 and Figure 6 The molded plates are shown from different perspectives. Figure 7 and Figure 8 The lower mold is shown from different perspectives.

[0025] Example 1.

[0026] Preferably, the plastic secondary thermoforming device includes an upper mold 100 and a lower mold 200, with a forming plate 300 disposed between the upper mold 100 and the lower mold 200. The forming plate 300 is completely covered by the upper mold 100 and the lower mold 200, and the forming plate 300 is detachably connected to the lower mold 200.

[0027] The molding plate 300 includes a molding plate body 330 and a plurality of molding assemblies 301 (preferably 4). The molding assembly 301 is provided with two first protrusions 310 and a second protrusion 320 located between the two first protrusions 310. There is a gap between the first protrusions 310 and the second protrusions 320. The first protrusions 310 and the second protrusions 320 are integrally formed with the molding plate body 330 respectively.

[0028] The lower mold 200 includes a lower mold body 210 and multiple alignment structures 201 (preferably four, the same number as the molding assembly 301), with the molding assembly 301 directly opposite the alignment structure 201; this positions the plastic material between the molding plate 300 and the lower mold 200. When the upper mold 100 presses the molding assembly 301 of the molding plate 300 into the alignment structure 201 of the lower mold 200, the preset portion of the plastic material is formed a second time (the plastic material here has undergone a first molding process such as flattening); thus, the preset portion of the plastic material forms a concave-convex structure to meet the actual application needs of the plastic material.

[0029] The molding plate body 330 has multiple molding plate through holes 331 so as to maintain the internal and external air pressure balance at the plastic material during the process of the upper mold 100 pressing the molding assembly 301 of the molding plate 300 into the alignment structure 201 of the lower mold 200, and to prevent the formation of a local vacuum environment.

[0030] The docking structure 201 includes multiple lower mold protrusions 230 (preferably 5), which are integrally formed with the lower mold body 210. There is a gap between two adjacent lower mold protrusions 230. The lower mold body 210 has multiple lower mold grooves 220 (preferably 5, the same number as the lower mold protrusions 230), and the lower mold protrusions 230 are centrally distributed in the lower mold grooves 220. This allows the first protrusion 310 or the second protrusion 320 to fit perfectly into the inverted triangular space between two adjacent lower mold protrusions 230, thereby enabling the plastic material to fully contact the molding plate 300 and the lower mold 200, which helps the plastic material to complete the secondary molding process.

[0031] The first protrusion 310 has a straight cross-section, while the second protrusion 320 has a W-shaped cross-section.

[0032] The second protrusion 320 is provided with a second segment 322 and two first segments 321. The two first segments 321 are distributed in parallel and are integrally formed with the second segment 322, so that the transverse cross section of the second protrusion 320 is W-shaped.

[0033] The upper mold 100 has an upper mold through hole 101, which is centrally distributed relative to the upper mold 100; so as to maintain the internal and external air pressure balance at the plastic material when the upper mold 100 presses the molding assembly 301 of the molding plate 300 into the alignment structure 201 of the lower mold 200, and prevent the formation of a local vacuum environment.

[0034] For example, plastic materials formed by a plastic secondary vacuum forming device can be used on nameplates and other parts of suitcases (ABS suitcases).

[0035] It is worth mentioning that the specific material and other technical features of the molding plate 300 involved in this utility model patent application should be regarded as prior art. The specific structure, working principle and possible control methods and spatial arrangement methods of these technical features can be conventionally selected in the field and should not be regarded as the inventive point of this utility model patent. This utility model patent will not be further elaborated in detail.

[0036] For those skilled in the art, modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A plastic secondary blister forming device, characterized by, The upper die and the lower die are provided with a forming plate therebetween, the forming plate is completely covered by the upper die and the lower die, and the forming plate is detachably connected with the lower die, wherein: The forming plate comprises a forming plate body and a plurality of forming assemblies, each forming assembly is provided with two first protruding portions and a second protruding portion located between the two first protruding portions, the first protruding portions and the second protruding portion have a spacing therebetween, and the first protruding portions and the second protruding portion are integrally formed with the forming plate body respectively; The lower die comprises a lower die body and a plurality of alignment structures, and the forming assemblies are opposite to the alignment structures; The forming plate body is provided with a plurality of forming plate through holes.

2. The plastic secondary blister molding apparatus according to claim 1, wherein The alignment structure comprises a plurality of lower die protruding ribs, the lower die protruding ribs are integrally formed with the lower die body, adjacent two lower die protruding ribs have a spacing therebetween, the lower die body is provided with a plurality of lower die grooves, and the lower die protruding ribs are centrally distributed in the lower die grooves.

3. The plastic secondary blister molding apparatus according to claim 1, wherein The first protruding portions have a straight strip shape in a transverse cross section, and the second protruding portion has a W-shaped transverse cross section.

4. The plastic secondary blister molding apparatus according to claim 1, wherein The second protruding portion is provided with a second segment and two first segments, the two first segments are parallelly distributed, and the two first segments are integrally formed with the second segment respectively.

5. The plastic secondary blister molding apparatus according to claim 1, wherein The upper die is provided with an upper die through hole, and the upper die through hole is centrally distributed relative to the upper die.

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