Forming mold of paper fiber molding thread structure

Abstract

The utility model discloses a forming die of a paper fiber molding thread structure, which relates to the technical field of dies and comprises an upper die, a lower die, an inner core and an outer ring, the upper die is positioned above the lower die, the inner core is connected to the bottom of the upper die, and the outer ring is clamped between the inner core and the lower die; a plurality of modules are embedded in the outer wall of the outer ring, and concave threads are arranged on the side faces of the modules. The outer ring is elastic, a gap exists between the upper die and the die block, and a first forming cavity is formed between the upper die and the die block; the forming die provided by the utility model adopts the upper die and the lower die to extrude the outer ring, the outer ring expands to extrude the die block, the concave threads on the die block are extruded to extrude the threads on the paper fiber molding in the first forming cavity, and the forming die is simple in structure and suitable for thread forming of the paper fiber molding.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a forming mold for a paper fiber molded thread structure. Background Art

[0002] Paper fiber molding is a product made from paper fibers. Paper fiber molding also requires threading to connect to other structures. However, threading for paper fiber molding differs from existing plastic molding methods, so a thread forming mold for paper fiber molding is needed. Utility Model Content

[0003] In order to solve the above technical problems, the present invention proposes the following optimization technical solutions:

[0004] A forming mold for a paper fiber molded thread structure comprises an upper mold, a lower mold, an inner core and an outer ring, wherein the upper mold is located above the lower mold, the inner core is connected to the bottom of the upper mold, and the outer ring is clamped between the inner core and the lower mold; a plurality of modules are embedded in the outer wall of the outer ring, and the side surfaces of the modules are provided with inner concave threads; the outer ring is elastic, and a gap is provided between the upper mold and the modules to form a first forming cavity.

[0005] Furthermore, a first groove is provided on the top of the lower mold, and an extension shaft is provided on the bottom of the inner core, and the extension shaft is inserted into the first groove.

[0006] Furthermore, the outer wall of the outer ring is provided with a second groove, the shape and size of the second groove match the shape and size of the module, and the module is embedded in the second groove.

[0007] Furthermore, the outer ring is made of silicone.

[0008] Furthermore, a collar is provided on the top surface of the lower die, and a center hole of the collar corresponds to the position of the first groove.

[0009] Furthermore, there is a second molding cavity between the inner core and the upper mold, and the second molding cavity is connected to the first molding cavity.

[0010] Furthermore, both ends of the inner concave thread are pointed.

[0011] Furthermore, the concave degree of the two ends of the concave thread is shallower than that of the middle portion.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] The molding die provided by the utility model adopts an upper mold and a lower mold to extrude an outer ring. The outer ring expands to extrude the module. The inner concave thread on the module is extruded to mold the paper fiber in the first molding cavity. The structure is simple and suitable for thread molding of paper fiber molding. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the utility model Figure 1 .

[0015] Figure 2 This is a schematic diagram of the structure of the utility model Figure 2 .

[0016] Figure 3 It is a structural sectional view of the present utility model.

[0017] Figure 4 It is a structural schematic diagram of the outer ring of the utility model.

[0018] In the figure: 1. Upper mold; 2. Lower mold; 3. Inner core; 4. Outer ring; 5. Module; 6. Inner concave thread; 7. First molding cavity; 8. First groove; 9. Extension shaft; 10. Second groove; 11. Ring; 12. Second molding cavity. DETAILED DESCRIPTION

[0019] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0020] See also Figure 1-Figure 4 A forming mold for a paper fiber molding thread structure includes an upper mold 1, a lower mold 2, an inner core 3 and an outer ring 4. The upper mold 1 is located above the lower mold 2, the inner core 3 is connected to the bottom of the upper mold 1, and the outer ring 4 is clamped between the inner core 3 and the lower mold 2; the outer wall of the outer ring 4 is embedded with multiple modules 5, and the side of the module 5 is provided with an inner concave thread 6; the outer ring 4 is elastic, and there is a gap between the upper mold 1 and the module 5 to form a first molding cavity 7.

[0021] When the mold is closed, paper fibers are injected into the first molding cavity 7 from the runner and formed into a paper fiber molding after cooling. Then, a driving device (not shown in the figure) drives the upper mold 1 to descend, and at the same time, another driving device (not shown in the figure) drives the outer ring 4 to rotate. The inner core 3 descends together with the upper mold 1 until the inner core 3 and the lower mold 2 squeeze the outer ring 4 together. The outer ring 4 is deformed by the force and expands, thereby squeezing the module 5 outward. The inner concave thread 6 on the module 5 gradually unscrews on the paper fiber molding. The above-mentioned driving device drives the upper mold 1 to reset. The outer ring 4 returns to its original shape under the action of its own elasticity, and the module 5 is also reset.

[0022] In this embodiment, a first groove 8 is provided at the top of the lower mold 2, and an extension shaft 9 is provided at the bottom of the inner core 3. The extension shaft 9 is inserted into the first groove 8. When the upper mold 1 drives the inner core 3 downward, the extension shaft 9 moves within the first groove 8, and the extension shaft 9 guides the movement of the inner core 3 and the upper mold 1.

[0023] In this embodiment, the outer wall of the outer ring 4 is provided with a second groove 10, the shape and size of the second groove 10 match the shape and size of the module 5, and the module 5 is embedded in the second groove 10. The outer ring 4 is elastic and thus has a clamping effect on the module 5.

[0024] In this embodiment, the outer ring 4 is made of silicone, which is elastic and has good resilience, making it easy to squeeze out the module 5 and to reset it. In addition, the outer ring 4 can also be made of other elastic and resilient materials to achieve deformation, squeeze out the module 5, and to facilitate reset.

[0025] In this embodiment, a collar 11 is provided on the top surface of the lower die 2, and the center hole of the collar 11 corresponds to the position of the first groove 8. The collar 11 plays the role of raising the lower die 2, and the outer ring 4 is specifically arranged between the collar 11 and the upper die 1.

[0026] In this embodiment, a second molding cavity 12 is present between the inner core 3 and the upper mold 1, and the second molding cavity 12 is connected to the first molding cavity 7. The upper mold 1 and the inner core 3 are connected by a connecting structure, and a gap exists between them. This gap is the second molding cavity 12, that is, the paper fibers injected by the runner are molded in the first molding cavity 7 and the second molding cavity 12.

[0027] In this embodiment, both ends of the inner concave thread 6 are pointed, which makes it easier for the inner concave thread 6 to form threads on the paper fiber and paper plastic when the module 5 rotates.

[0028] In this embodiment, the concave degree of the two ends of the concave thread 6 is shallower than that of the middle portion. When the module 5 rotates, the shallow concave degree of the two ends of the concave thread 6 also makes it easier to form threads on the paper fiber paper molding during rotation.

[0029] The foregoing description is intended only to provide specific embodiments of the present invention, intended to enable those skilled in the art to understand and implement the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not intended to be limited to the embodiments shown herein, but rather to be construed in the broadest manner consistent with the principles and novel features claimed herein.

Claims

1. A molding die for a paper fiber molded thread structure, characterized in that: It includes an upper mold, a lower mold, an inner core and an outer ring. The upper mold is located above the lower mold, the inner core is connected to the bottom of the upper mold, and the outer ring is clamped between the inner core and the lower mold; the outer wall of the outer ring is embedded with multiple modules, and the side of the module is provided with an inner concave thread; the outer ring is elastic, and there is a gap between the upper mold and the module to form a first molding cavity.

2. The forming die of the paper fiber molded thread structure according to claim 1, characterized in that: A first groove is provided on the top of the lower mold, and an extension shaft is provided on the bottom of the inner core, and the extension shaft is inserted into the first groove.

3. The forming die of the paper fiber molded thread structure according to claim 1, characterized in that: The outer wall of the outer ring is provided with a second groove, the shape and size of the second groove match the shape and size of the module, and the module is embedded in the second groove.

4. The forming die of the paper fiber molded thread structure according to claim 1, characterized in that: The outer ring is made of silicone.

5. The forming die of the paper fiber molded thread structure according to claim 2, characterized in that: A collar is provided on the top surface of the lower die, and a center hole of the collar corresponds to the position of the first groove.

6. The forming die of the paper fiber molded thread structure according to claim 1, characterized in that: A second molding cavity is provided between the inner core and the upper mold, and the second molding cavity is communicated with the first molding cavity.

7. The forming die of the paper fiber molded thread structure according to claim 1, characterized in that: Both ends of the inner concave thread are pointed.

8. The forming die of the paper fiber molded thread structure according to claim 1, characterized in that: The concave degree of the two ends of the concave thread is shallower than that of the middle part.

Images