Headrest compression molding device

Abstract

The utility model is suitable for the technical field of compression molding, and provides a headrest compression molding device which comprises a lower die holder and an upper die holder, and the lower die holder is located below the upper die holder; the pressing die assembly is arranged on the outer side walls of the lower die holder and the upper die holder; the die pressing assembly comprises a fixing ring welded to the outer side wall of the lower die base. The first threaded connecting sleeve is welded to the top of the fixing ring; the annular sliding groove is formed in the outer side wall of the upper die base; the annular sliding block slides in the annular sliding groove; the upper die base gradually moves towards the lower die base in a non-rotating state through the die pressing assembly, it is guaranteed that a first rubber sealing ring and a second rubber sealing ring are not affected by shearing force to be extruded and deformed, the sealing performance after die pressing is guaranteed, the lower die base and the upper die base are extruded through thread screwing force to achieve the purpose of die pressing, manual pressing is not needed, and the die pressing efficiency is improved. And only the rotating ring needs to be rotated.

Description

Technical Field

[0001] The utility model belongs to the technical field of die pressing molding, and particularly relates to a headrest die pressing molding device. Background Art

[0002] When producing a headrest, it needs to go through processes such as raw liquid foaming, injecting the raw liquid into a shaping mold, high-temperature heating and molding, demolding and cleaning, heating and drying, etc. When injecting the raw liquid into the mold, it is necessary to press the upper and lower molds tightly to prevent the mold from being misaligned and affecting the injection of glue. Generally, methods such as manual pressing or setting several buckles on the mold are used to achieve die pressing. Manual pressing increases the labor intensity of workers. The process of buckling and pressing the mold through buckles is cumbersome, and it increases the workload for mold opening.

[0003] Therefore, a headrest die pressing molding device is proposed. Content of the Utility Model

[0004] The utility model provides a headrest die pressing molding device, aiming to solve the above problems.

[0005] The utility model is realized as follows. A headrest die pressing molding device includes: a lower mold base and an upper mold base, the lower mold base is located below the upper mold base; a die pressing assembly arranged on the outer side walls of the lower mold base and the upper mold base; wherein, the die pressing assembly includes: a fixed ring welded to the outer side wall of the lower mold base; a first threaded connection sleeve welded to the top of the fixed ring; an annular sliding groove opened on the outer side wall of the upper mold base; an annular sliding block sliding inside the annular sliding groove; a rotating ring welded to the outer side wall of the annular sliding block; a second threaded connection sleeve welded to the bottom of the rotating ring; a docking column cast on the bottom of the upper mold base; a docking hole opened on the top of the lower mold base.

[0006] A headrest die pressing molding device further includes a first rubber sealing ring and a second rubber sealing ring embedded in the top of the lower mold base, the first rubber sealing ring is located outside the second rubber sealing ring; a molding cavity respectively opened at the central position of the top of the lower mold base and the central position of the bottom of the upper mold base; a handle welded to the top of the upper mold base; and a through hole opened at a position close to the handle on the top of the upper mold base; a base welded to the bottom of the lower mold base.

[0007] Preferably, a thread groove is opened on the inner side wall of the first threaded connection sleeve, a thread is opened on the outer side wall of the second threaded connection sleeve, and the first threaded connection sleeve and the second threaded connection sleeve are screwed together.

[0008] Preferably, the docking column and the docking hole are matched and fitted, and the docking column is embedded inside the docking hole.

[0009] Preferably, the through hole on the top of the upper mold base is communicated with the molding cavity at the bottom.

[0010] Preferably, the cross-section of the first rubber sealing ring is annular, and the cross-section of the second rubber sealing ring is a rectangular frame.

[0011] Preferably, anti-slip grooves are provided on the outer side wall of the rotating ring.

[0012] Preferably, four docking columns are provided, and the four docking columns are symmetrically arranged at the bottom of the upper mold base.

[0013] Compared with the prior art, the embodiments of the present application mainly have the following beneficial effects:

[0014] Through the die pressing assembly, the upper mold base moves gradually downward relative to the lower mold base in a non-rotating state, ensuring that the first rubber sealing ring and the second rubber sealing ring are not affected by shear force and are extruded and deformed, ensuring the sealing performance after die pressing. And by using the screw tightening force, the lower mold base and the upper mold base are extruded to achieve the purpose of die pressing, without manual pressing, and only by rotating the rotating ring, avoiding the problem of cumbersome operation and increased workload caused by the need to operate multiple buckles for clamping in traditional die pressing of molds. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural view of the present utility model;

[0016] Figure 2 is an exploded view of the lower mold base of the present utility model;

[0017] Figure 3 is an exploded view of the upper mold base of the present utility model;

[0018] Figure 4 is a schematic structural view of the upper mold base of the present utility model.

[0019] In the figure: 1, lower mold base; 2, upper mold base; 3, die pressing assembly; 31, fixed ring; 32, first threaded connection sleeve; 33, annular chute; 34, annular slider; 35, rotating ring; 36, second threaded connection sleeve; 37, docking column; 38, docking hole; 4, first rubber sealing ring; 5, second rubber sealing ring; 6, forming cavity; 7, handle; 8, through hole; 9, base. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above drawings are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the specification and claims of this application or the above drawings are used to distinguish different objects and not to describe a specific order.

[0021] References to "embodiments" in this specification mean that a particular feature, structure, or characteristic described in connection with the embodiments can be included in at least one embodiment of the application. The phrase does not necessarily refer to the same embodiment each time it appears in the specification, nor is it an independent or alternative embodiment mutually exclusive of other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0022] An embodiment of the utility model provides a headrest compression molding device, as Figures 1-4 shown, which includes a lower mold base 1 and an upper mold base 2. A fixed ring 31 in a compression molding assembly 3 is welded to the outer side wall of the lower mold base 1. A first threaded connection sleeve 32 is welded to the top of the fixed ring 31. An annular chute 33 in the compression molding assembly 3 is provided on the outer side wall of the upper mold base 2. An annular slider 34 is slidably connected inside the annular chute 33. A rotating ring 35 is welded to the outer side wall of the annular slider 34. An anti-slip groove is provided on the outer side wall of the rotating ring 35. A second threaded connection sleeve 36 is welded to the bottom of the rotating ring 35. A docking post 37 is integrally cast at the bottom of the upper mold base 2. A docking hole 38 is provided at the top of the lower mold base 1 directly below the docking post 37. A first rubber sealing ring 4 and a second rubber sealing ring 5 are embedded in the top of the lower mold base 1. The first rubber sealing ring 4 is located outside the second rubber sealing ring 5. Molding cavities 6 are provided at the central positions of the top of the lower mold base 1 and the bottom of the upper mold base 2. A handle 7 is welded to the top of the upper mold base 2, and a through hole 8 is provided at a position on the top of the upper mold base 2 close to one side of the handle 7. The through hole 8 at the top of the upper mold base 2 communicates with the molding cavity 6 at the bottom. A base 9 is welded to the bottom of the lower mold base 1.

[0023] It should be noted that in the existing upper and lower molds in headrest production, generally, methods such as manual pressing or setting several buckles on the mold are used to achieve mold pressing. Manual pressing increases the labor intensity of workers. The process of buckling and pressing the mold through buckles is cumbersome, and it increases the workload for mold opening. In this embodiment, through the mold pressing assembly 3, the upper mold base 2 moves gradually downward relative to the lower mold base 1 without rotation, ensuring that the first rubber sealing ring 4 and the second rubber sealing ring 5 are extruded and deformed without being affected by shear force, ensuring the sealing performance after mold pressing. And by using the screw tightening force, the lower mold base 1 and the upper mold base 2 are extruded to achieve the purpose of mold pressing, without manual pressing, and only by rotating the rotating ring 35, avoiding the problem that the traditional mold pressing requires operating multiple buckles for clamping, which is cumbersome and increases the workload.

[0024] Specifically, in this embodiment, the solution mainly includes a mold pressing assembly 3. Pour the latex liquid for headrest production into the molding cavity 6. Hold the handle 7, and achieve precise positioning and docking through the limitation between the docking post 37 and the docking hole 38. Move the upper mold base 2 downward. After the second threaded connecting sleeve 36 contacts the first threaded connecting sleeve 32, rotate the rotating ring 35. Through the sliding of the annular slider 34 in the annular chute 33, the rotating ring 35 drives the second threaded connecting sleeve 36 to rotate on the outside of the upper mold base 2. Through the screw-threaded connection between the first threaded connecting sleeve 32 and the second threaded connecting sleeve 36, the second threaded connecting sleeve 36 is gradually screwed into the first threaded connecting sleeve 32, and the distance between the lower mold base 1 and the upper mold base 2 is gradually shortened until the lower mold base 1 and the upper mold base 2 are tightly extruded, realizing the mold pressing between the lower mold base 1 and the upper mold base 2. Place the lower mold base 1 and the upper mold base 2 into a heating device for heating. The latex liquid in the molding cavity 6 expands due to heat, and the headrest is formed under the limitation of the molding cavity 6. When the headrest in the molding cavity 6 cools down, reverse-rotate the rotating ring 35 to separate the lower mold base 1 and the upper mold base 2, and take out the formed headrest.

[0025] In a further preferred embodiment of the present invention, as Figures 1-3 shown, a thread groove is provided on the inner side wall of the first threaded connecting sleeve 32, and a thread is provided on the outer side wall of the second threaded connecting sleeve 36. The first threaded connecting sleeve 32 and the second threaded connecting sleeve 36 are screw-threaded connected.

[0026] In this embodiment, when rotating the second threaded connecting sleeve 36, the second threaded connecting sleeve 36 is gradually screwed into the first threaded connecting sleeve 32, thereby enabling the lower mold base 1 and the upper mold base 2 to be butted and extruded.

[0027] In a further preferred embodiment of the present invention, as Figures 1-4 shown, four docking posts 37 are provided in total, and the four docking posts 37 are symmetrically arranged at the bottom of the upper mold base 2. The docking posts 37 match and fit with the docking holes 38, and the docking posts 37 are embedded inside the docking holes 38.

[0028] In this embodiment, through the guiding and limiting of the docking post 37 by the docking hole 38, the upper die base 2 can move downward relative to the lower die base 1 without rotation, thereby fully squeezing the first rubber sealing ring 4 and the second rubber sealing ring 5, ensuring the sealing performance between the lower die base 1 and the upper die base 2.

[0029] In a further preferred embodiment of the present utility model, as Figures 1-2 shown, the cross-section of the first rubber sealing ring 4 is annular, and the cross-section of the second rubber sealing ring 5 is a rectangular frame.

[0030] In this embodiment, double-seal protection can be achieved to prevent the penetration of latex liquid.

[0031] It should be noted that for the foregoing embodiments, for the sake of simple description, they are all described as a series of action combinations. However, those skilled in the art should understand that the present utility model is not limited by the described action sequence, because according to the present utility model, certain steps may be performed in other sequences or simultaneously. Secondly, those skilled in the art should also understand that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily essential to the present utility model.

[0032] In several embodiments provided by the present application, it should be understood that the disclosed device can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the above-mentioned unit division may have other division methods in actual implementation. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Another point is that the displayed or discussed coupling or communication connection between each other may be through some interfaces, and the indirect coupling or communication connection between devices or units may be in the form of telecommunications or other forms.

[0033] The units described above as separate components may or may not be physically separated. The components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0034] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting the protection scope of the invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art can still, without conflict and without making creative efforts, combine, add or delete the features in the embodiments of the present invention according to the circumstances, or make other adjustments, so as to obtain different technical solutions that essentially do not deviate from the concept of the present invention, and these technical solutions also fall within the scope of protection of the present invention.

Claims

1. A headrest compression molding device, characterized in that, Including: A lower die base (1) and an upper die base (2), where the lower die base (1) is located below the upper die base (2); A die pressing component (3) provided on the outer side walls of the lower die base (1) and the upper die base (2); Wherein, the die pressing component (3) includes: A fixed ring (31) welded to the outer side wall of the lower die base (1); A first threaded connection sleeve (32) welded to the top of the fixed ring (31); An annular sliding groove (33) opened on the outer side wall of the upper die base (2); An annular sliding block (34) sliding inside the annular sliding groove (33); A rotating ring (35) welded to the outer side wall of the annular sliding block (34); A second threaded connection sleeve (36) welded to the bottom of the rotating ring (35); A docking post (37) cast and formed at the bottom of the upper die base (2); A docking hole (38) opened on the top of the lower die base (1); It further includes a first rubber sealing ring (4) and a second rubber sealing ring (5) embedded in the top of the lower die base (1), and the first rubber sealing ring (4) is located outside the second rubber sealing ring (5); Forming cavities (6) respectively opened at the central position of the top of the lower die base (1) and the central position of the bottom of the upper die base (2); A handle (7) welded to the top of the upper die base (2); and A through hole (8) opened at a position on the top of the upper die base (2) close to one side of the handle (7); A base (9) welded to the bottom of the lower die base (1).

2. The headrest compression molding device according to claim 1, characterized in that, Thread grooves are opened on the inner side wall of the first threaded connection sleeve (32), threads are opened on the outer side wall of the second threaded connection sleeve (36), and the first threaded connection sleeve (32) and the second threaded connection sleeve (36) are screwed and connected.

3. The headrest compression molding device according to claim 1, characterized in that, The docking post (37) and the docking hole (38) are matched and fitted, and the docking post (37) is embedded inside the docking hole (38).

4. The headrest compression molding device according to claim 1, characterized in that, The through hole (8) at the top of the upper die base (2) is communicated with the forming cavity (6) at the bottom.

5. The headrest compression molding device according to claim 1, characterized in that, The cross section of the first rubber sealing ring (4) is annular, and the cross section of the second rubber sealing ring (5) is a rectangular frame.

6. The headrest compression molding device according to claim 1, characterized in that, Anti-slip grooves are opened on the outer side wall of the rotating ring (35).

7. The headrest compression molding device according to claim 1, characterized in that, There are four docking posts (37) in total, and the four docking posts (37) are symmetrically arranged at the bottom of the upper die base (2).

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