Mould for mask production

Abstract

The utility model relates to the technical field of mask production, and discloses a die for mask production, which comprises an upper die holder and a lower die holder, an upper die plate is arranged below the upper die base. An upper mold core is arranged in the upper mold plate; the bottom end of the upper mold core is fixedly connected with a first insert; the lower die holder is arranged below the upper die holder; a lower die plate is arranged between the lower die base and the upper die plate. A lower mold core is arranged in the lower mold plate; the upper mold core and the lower mold core are oppositely arranged, and the upper mold core can be buckled on the lower mold core; a second insert and an ejector block are arranged in the lower mold core; the second insert and the ejector block are both connected into the lower die core in a sliding mode and both connected with the lower die base. The ejector block is arranged on one side of the second insert and located below the first insert. A first sliding block assembly, a second sliding block assembly and a third sliding block assembly are arranged on the lower die core in the circumferential direction of the periphery of the second insert. The first sliding block assembly and the third sliding block assembly are oppositely arranged.

Description

Technical Field

[0001] The utility model relates to the technical field of mask production, in particular to a mold used for mask production. Background Art

[0002] Molds are various molds and tools used in industrial production to obtain the desired products by injection molding, blow molding, extrusion, die casting or forging, smelting, stamping and other methods. In short, molds are tools used to shape objects. This tool is composed of various parts. Different molds are composed of different parts. It mainly realizes the processing of the shape of the object by changing the physical state of the molded material.

[0003] At present, aviation masks on the market are usually injection molded using molds with curved surfaces. The existing mold includes a top plate, an upper mold plate, a mold core, a lower mold plate and a bottom plate, wherein the mold core is arranged between the upper mold plate and the lower mold plate, and a product cavity is formed between the three. During injection molding, the upper mold plate moves down and closes with the lower mold plate, and the product is obtained by injection molding the product cavity. After the mold is opened, because the product is wrapped on the mold core, the mold core covering the product needs to be manually taken to the outside of the machine for gradual demolding. After demolding, the mold core is put back into the installation position in the mold to achieve the production molding of the mask. However, the existing mold adopts this material extraction method, which has high labor intensity and long operation time affecting production capacity. In addition, the mold core needs to be taken out and reinstalled each time the material is extracted, which is prone to installation errors, affecting assembly accuracy and reducing product production quality.

[0004] Therefore, there is an urgent need for a mold for mask production to solve the above problems. Utility Model Content

[0005] Based on the above, the purpose of the utility model is to provide a mold for mask production, so as to solve the problem that the existing mold material extraction method has high labor intensity, long operation time, and each time the material is extracted, the mold core needs to be removed and reinstalled, which is prone to installation errors and affects the assembly accuracy.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A mold for producing a mask comprises an upper mold base and a lower mold base; an upper mold base is provided below the upper mold base; an upper mold core is provided in the upper mold base; a first insert is fixedly connected to the bottom end of the upper mold core; the lower mold base is provided below the upper mold base; a lower mold base is provided between the lower mold base and the upper mold base; a lower mold core is provided in the lower mold base; the upper mold core is arranged opposite to the lower mold core and the upper mold core can be buckled on the lower mold core;

[0008] A second insert and a top block are provided in the lower mold core; the second insert and the top block are both slidably connected in the lower mold core, and the second insert and the top block are both connected to the lower mold base; the top block is provided on one side of the second insert and is located below the first insert; a first slider assembly, a second slider assembly and a third slider assembly are provided on the lower mold core along the circumference of the second insert; the first slider assembly and the third slider assembly are arranged opposite to each other.

[0009] As a preferred solution for the mold for mask production, a first protrusion extending outward is provided on one side of the first insert; a first connecting portion extending outward is provided at the bottom end of the first insert; and the first connecting portion can enter or exit from the top block.

[0010] As a preferred solution for the mold for mask production, the bottom end of the first connecting part is detachably connected to a first connecting block; a first connecting piece is provided on one side of the first connecting block, and the first connecting piece extends away from one end of the first connecting block into the first protruding portion; the first connecting piece and the first connecting block are arranged at an angle.

[0011] As a preferred solution for the mold for mask production, the top end of the top block has a first recessed portion corresponding to the first connecting portion, and the first connecting portion can enter or escape from the first recessed portion; the bottom end of the top block is connected to the lower mold base.

[0012] As a preferred solution for the mold for producing masks, a second recessed portion corresponding to the upper mold core is provided at the top of the second insert, and a flow channel for the injection fluid to enter is provided in the center of the second recessed portion; a first interference portion corresponding to the first recessed portion is provided on one side of the second insert; and when the upper mold base and the lower mold base are closed, the first interference portion interferes with the first recessed portion.

[0013] As a preferred solution for the mold for mask production, a second connecting block extending outward is provided at the bottom end of the second insert; the second connecting block is slidably connected to the lower mold core.

[0014] As a preferred solution of the mold for mask production, the first slider assembly is the same as the third slider assembly;

[0015] The first slider assembly includes a first movable seat and a first inclined rod; two groups of first limit blocks are provided at both ends of the first movable seat, and the two groups of first limit blocks are fixedly connected to the lower mold core; the first inclined rod is provided on the upper mold plate, and the first movable seat is provided with a first sliding hole corresponding to the first inclined rod, and the first inclined rod is slidably connected to the first sliding hole; the first movable seat is provided with a first forming portion extending outward on the side close to the second insert.

[0016] As a preferred solution for the mold for mask production, the second slider assembly includes a second movable seat, a second inclined rod and a second limit block; two groups of third limit blocks are provided at both ends of the second movable seat, and the two groups of third limit blocks are fixedly connected to the lower mold core; the second inclined rod is provided on the upper mold plate and is slidably connected to the second movable seat; the second movable seat is provided with a second molding portion extending outward on the side close to the second insert; the second limit block is provided on the side of the second movable seat away from the second insert, and is in conflict with the second movable seat.

[0017] As a preferred solution for the mold for producing masks, the second movable seat is provided with a second sliding hole corresponding to the second inclined rod, and the second inclined rod is slidably connected to the second sliding hole.

[0018] As a preferred solution for the mold for mask production, a fixed plate and a push rod plate are provided on the lower mold base; the push rod plate is connected to the top of the lower mold base, and the push rod plate is connected to the fixed plate; a first connecting rod for lifting is provided between the push rod plate and the second insert, and a spring is provided between the first connecting rod and the lower mold plate; a second connecting rod for lifting is provided between the push rod plate and the push block.

[0019] The beneficial effects of the utility model are:

[0020] By setting the first insert, the second insert and the top block, when the upper mold base and the lower mold base are opened, the first slider assembly, the second slider assembly and the third slider assembly gradually move toward the outside of the lower mold core as the upper mold base moves upward, so as to avoid that the inverted part of the mask cannot be removed, and the second insert and the top block are lifted up by the action of the lower mold base to eject the mask from the lower mold core. At the same time, the second insert further separates the mask from the second insert and the top block as the upper mold base moves upward. When the upper mold base is completely opened, the staff removes the mask from the first insert, and then completes the removal of the mask, which simplifies the mask removal steps, reduces the material removal operation time, and improves production efficiency. The mask is removed by the first insert, the second insert and the top block, and there is no need to manually remove the first insert on the upper mold core, which ensures the assembly accuracy between the internal components of the mold and improves the production quality of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the overall structure of a mold for producing a mask provided by the utility model;

[0022] Figure 2 A schematic diagram of the first part of the structure of the mold for producing a mask provided by the utility model;

[0023] Figure 3 A schematic diagram of the second part of the structure of the mold for producing the mask provided by the utility model;

[0024] Figure 4 A schematic diagram of the internal structure of a mold for producing a mask provided by the utility model;

[0025] Figure 5 for Figure 4 A is an enlarged schematic diagram;

[0026] Figure 6 A schematic diagram of the overall structure of the first insert provided by the utility model;

[0027] Figure 7 A schematic diagram of the overall structure of the second insert provided by the utility model;

[0028] Figure 8 A schematic diagram of the overall structure of the top block provided by the utility model;

[0029] Fig. 9 This is a schematic diagram of the overall structure of the first sliding assembly provided by the utility model;

[0030] Fig.10 This is a schematic diagram of the overall structure of the second sliding assembly provided by the utility model.

[0031] Among them, the reference numerals in the figure are:

[0032] 10. upper die seat; 11. upper die plate; 12. upper die core; 13. first insert; 131. first protrusion; 132. first connection portion; 14. first connection block; 141. first connection member; 20. lower die seat; 21. lower die plate; 22. lower die core; 23. second insert; 231. second recess; 232. flow channel; 233. first abutment portion; 24. top block; 241. first recess; 25. second connection block; 26. Fixed plate; 27. Push rod plate; 28. First connecting rod; 29. ​​Second connecting rod; 31. First slider assembly; 311. First movable seat; 312. First diagonal rod; 313. First limiting block; 314. First forming part; 32. Second slider assembly; 321. Second movable seat; 322. Second diagonal rod; 323. Second limiting block; 324. Third limiting block; 325. Second forming part; 33. Third slider assembly. DETAILED DESCRIPTION

[0033] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0034] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0036] In the description of this embodiment, terms such as "up", "down", "left", and "right" and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present utility model.

[0037] In the description of the present invention, unless otherwise specified, the meaning of "plurality" is two or more than two. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0038] In one embodiment of the present invention, Figure 1-10 As shown, a mold for mask production is provided, including an upper mold base 10 and a lower mold base 20. An upper mold base 11 is provided below the upper mold base 10. An upper mold core 12 is provided in the upper mold base 11. A first insert 13 is fixedly connected to the bottom end of the upper mold core 12. The lower mold base 20 is provided below the upper mold base 10. A lower mold base 21 is provided between the lower mold base 20 and the upper mold base 11. A lower mold core 22 is provided in the lower mold base 21. The upper mold core 12 is arranged opposite to the lower mold core 22 and the upper mold core 12 can be buckled on the lower mold core 22.

[0039] The lower mold core 22 is provided with a second insert 23 and a top block 24. The second insert 23 and the top block 24 are both slidably connected to the lower mold core 22, and the second insert 23 and the top block 24 are both connected to the lower mold base 20. The top block 24 is provided on one side of the second insert 23 and is located below the first insert 13. The lower mold core 22 is provided with a first slider assembly 31, a second slider assembly 32 and a third slider assembly 33 along the outer circumference of the second insert 23. The first slider assembly 31 and the third slider assembly 33 are arranged opposite to each other.

[0040] In this embodiment, a flow channel 232 plate is provided between the upper mold base 10 and the upper mold plate 11, and a fixing ring is provided on the upper mold base 10. When the mold is closed, the fluid flows into the molding cavity in the upper mold core 12 and the lower mold core 22 through the fixing ring and the flow channel 232 plate, and the injection molding of the mask is realized through the molding cavity, the first insert 13, the second insert 23 and the top block 24.

[0041] By setting the first insert 13, the second insert 23 and the top block 24, when the upper mold base 10 and the lower mold base 20 are opened, the first slider assembly 31, the second slider assembly 32 and the third slider assembly 33 gradually move toward the outside of the lower mold core 22 as the upper mold base 10 moves upward, so as to avoid that the undercut part of the mask cannot be taken out, and the second insert 23 and the top block 24 are pushed upward under the action of the lower mold base 20 to push the mask out of the lower mold core 22. At the same time, the second insert 23 moves upward with the upper mold base 10 to further push the mask out of the first The second insert 23 and the top block 24 are disengaged. When the upper mold base 10 is fully opened, since the material of the mask has a certain elasticity, the staff removes the mask from the first insert 13, and then completes the removal of the mask, which simplifies the mask collection steps, reduces the material collection operation time, and improves production efficiency. The mask is removed through the first insert 13, the second insert 23 and the top block 24, and there is no need to manually remove the first insert 13 on the upper mold core 12, which ensures the assembly accuracy between the internal components of the mold and improves the production quality of the product.

[0042] Preferably, a first protrusion 131 extending outward is provided on one side of the first insert 13. A first connection portion 132 extending outward is provided at the bottom end of the first insert 13. The first connection portion 132 can enter or leave the top block 24. When the mold is closed, the first insert 13 moves downward along with the upper mold core 12, and the first connection portion 132 enters the top block 24. The first protrusion 131 conflicts with one side of the second insert 23, thereby achieving automatic buckling of the first insert 13 with the top block 24 and the second insert 23, thereby improving the molding accuracy of the product and the production quality of the product; when the mold is opened, the first insert 13 moves upward along with the upper mold core 12 to bring out the molded mask, and there is no need to manually disassemble the first insert to take out the material, thereby ensuring the assembly accuracy between the internal parts of the mold and improving the production quality of the product.

[0043] Furthermore, the first connection block 14 is detachably connected to the bottom end of the first connection portion 132. A first connection member 141 is provided on one side of the first connection block 14, and the first connection member 141 extends away from one end of the first connection block 14 to the inside of the first protrusion 131. The first connection member 141 is arranged obliquely with the first connection block 14. By arranging the first connection block 14 and the first connection member 141, it is convenient to form the ventilation part inside the mask.

[0044] Furthermore, the top of the top block 24 has a first recessed portion 241 corresponding to the first connecting portion 132, and the first connecting portion 132 can enter or leave the first recessed portion 241. The bottom of the top block 24 is connected to the lower mold base 20. By providing the first recessed portion 241, the first connecting portion 132 of the first insert 13 and the first recessed portion 241 can contact each other, thereby ensuring the molding quality of the mask and improving the production efficiency of the mask.

[0045] Furthermore, a second recessed portion 231 corresponding to the upper mold core 12 is provided at the top of the second insert 23, and a flow channel 232 for the injection fluid to enter is provided in the center of the second recessed portion 231. A first abutting portion 233 corresponding to the first recessed portion 241 is provided on one side of the second insert 23. When the upper mold base 10 and the lower mold base 20 are molded together, the first abutting portion 233 abuts against the first recessed portion 241, thereby ensuring the molding quality of the mask and improving the production efficiency of the mask.

[0046] Furthermore, a second connecting block 25 extending outward is provided at the bottom end of the second insert 23. The second connecting block 25 is slidably connected to the lower mold core 22. When the mold is opened, the lower mold plate 21 lifts the second connecting block 25 and the top block 24 at the same time, thereby realizing the ejection of the molded mask, which is convenient for the staff to take the material.

[0047] Preferably, the first slider assembly 31 is the same as the third slider assembly 33 , and the working principles of the two are also the same, so only the first slider assembly 31 is described in detail.

[0048] The first slider assembly 31 includes a first movable seat 311 and a first inclined rod 312. Two groups of first limit blocks 313 are provided at both ends of the first movable seat 311, and the two groups of first limit blocks 313 are fixedly connected to the lower mold core 22. The first inclined rod 312 is provided on the upper mold plate 11, and a first sliding hole corresponding to the first inclined rod 312 is provided on the first movable seat 311, and the first inclined rod 312 is slidably connected to the first sliding hole. A first molding portion 314 extending outward is provided on the side of the first movable seat 311 close to the second insert 23. When the mold is closed, the first inclined rod 312 moves downward with the upper mold core 12, and the first inclined rod 312 drives the first molding portion 314 of the first movable seat 311 to move inward and move to a preset position, thereby realizing the molding of the side part of the mask; when the mold is opened, the first inclined rod 312 drives the first movable seat 311 to move outward to avoid the undercut phenomenon, which is convenient for taking out the mask.

[0049] Preferably, the second slider assembly 32 includes a second movable seat 321, a second oblique rod 322 and a second limit block 323. Two groups of third limit blocks 324 are provided at both ends of the second movable seat 321, and the two groups of third limit blocks 324 are fixedly connected to the lower mold core 22. The second oblique rod 322 is provided on the upper mold plate 11 and is slidably connected to the second movable seat 321. A second molding portion 325 extending outward is provided on the side of the second movable seat 321 close to the second insert 23. The second limit block 323 is provided on the side of the second movable seat 321 away from the second insert 23, and conflicts with the second movable seat 321. A second sliding hole corresponding to the second oblique rod 322 is provided on the second movable seat 321, and the second oblique rod 322 is slidably connected to the second sliding hole. When the mold is closed, the second inclined rod 322 moves downward with the upper mold core 12, and the second inclined rod 322 drives the first molding portion 314 of the second movable seat 321 to move inward and to a preset position, and the second limiting block contacts one side of the second movable seat 321 to prevent the second movable seat 321 from shifting, thereby realizing the molding of the side part of the mask; when the mold is opened, the second inclined rod 322 drives the second movable seat 321 to move outward to avoid the inverted phenomenon, thereby facilitating the removal of the mask.

[0050] Preferably, a fixing plate 26 and a push rod plate 27 are provided on the lower mold base 20. The push rod plate 27 is connected to the top of the lower mold base 20, and the push rod plate 27 is connected to the fixing plate 26. A first connecting rod 28 for lifting is provided between the push rod plate 27 and the second insert 23, and a spring is provided between the first connecting rod 28 and the lower mold plate 21. A second connecting rod 29 for lifting is provided between the push rod plate 27 and the ejector block 24. When the mold is opened, the push rod plate 27 and the fixing plate 26 drive the first connecting rod 28 and the second connecting rod 29 to move upward, and then drive the second insert 23 and the ejector block 24 to eject the mask from the lower mold core 22, so that the staff can take out the mask and improve work efficiency.

[0051] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model is disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this profession can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content disclosed above without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiments according to the technology of the utility model, which does not depart from the content of the technical solution of the utility model, belongs to the scope of the technical solution of the utility model.

Claims

1. A mold for mask production, characterized in that: include: An upper die seat, wherein an upper die plate is provided below the upper die seat; an upper die core is provided inside the upper die plate; and a first insert is fixedly connected to the bottom end of the upper die core; A lower die base, the lower die base is arranged below the upper die base; a lower die plate is arranged between the lower die base and the upper die plate; a lower die core is arranged in the lower die plate; the upper die core is arranged opposite to the lower die core and the upper die core can be buckled on the lower die core; Among them, the lower mold core is provided with a second insert and a top block; the second insert and the top block are both slidably connected in the lower mold core, and the second insert and the top block are both connected to the lower mold base; the top block is arranged on one side of the second insert and is located below the first insert; the first slider assembly, the second slider assembly and the third slider assembly are circumferentially arranged on the lower mold core along the outer periphery of the second insert; the first slider assembly and the third slider assembly are arranged opposite to each other.

2. The mask production mold according to claim 1, characterized in that: A first protrusion extending outward is provided at one side of the first insert; a first connecting portion extending outward is provided at the bottom end of the first insert; and the first connecting portion can enter or leave the top block.

3. The mask production mold according to claim 2, characterized in that: The bottom end of the first connecting portion is detachably connected to a first connecting block; a first connecting piece is provided on one side of the first connecting block, and the first connecting piece extends into the first protruding portion away from one end of the first connecting block; the first connecting piece and the first connecting block are arranged obliquely.

4. The mask production mold according to claim 2, characterized in that: The top end of the top block has a first recessed portion corresponding to the first connecting portion, and the first connecting portion can enter or escape from the first recessed portion; the bottom end of the top block is connected to the lower die seat.

5. The mask production mold according to claim 4, characterized in that: A second recessed portion corresponding to the upper mold core is provided at the top of the second insert, and a flow channel for the injection fluid to enter is provided in the center of the second recessed portion; a first abutting portion corresponding to the first recessed portion is provided on one side of the second insert; when the upper mold base and the lower mold base are molded together, the first abutting portion abuts against the first recessed portion.

6. The mask production mold according to claim 5, characterized in that: A second connecting block extending outward is provided at the bottom end of the second insert; the second connecting block is slidably connected in the lower mold core.

7. The mask production mold according to claim 1, characterized in that: The first slider assembly is identical to the third slider assembly; The first slider assembly includes a first movable seat and a first inclined rod; two groups of first limit blocks are provided at both ends of the first movable seat, and the two groups of first limit blocks are fixedly connected to the lower mold core; the first inclined rod is provided on the upper mold plate, and the first movable seat is provided with a first sliding hole corresponding to the first inclined rod, and the first inclined rod is slidably connected to the first sliding hole; the first movable seat is provided with a first forming portion extending outward on the side close to the second insert.

8. The mask production mold according to claim 1, characterized in that: The second slider assembly includes a second movable seat, a second oblique rod and a second limit block; two groups of third limit blocks are provided at both ends of the second movable seat, and the two groups of third limit blocks are fixedly connected to the lower mold core; the second oblique rod is provided on the upper mold plate and is slidably connected to the second movable seat; the second movable seat is provided with a second molding portion extending outwardly on the side close to the second insert; the second limit block is provided on the side of the second movable seat away from the second insert, and is in conflict with the second movable seat.

9. The mask production mold according to claim 8, characterized in that: The second movable seat is provided with a second sliding hole corresponding to the second inclined rod, and the second inclined rod is slidably connected to the second sliding hole.

10. The mask production mold according to claim 1, characterized in that: A fixed plate and a push rod plate are provided on the lower die base; the push rod plate is connected to the top end of the lower die base, and the push rod plate is connected to the fixed plate; a first connecting rod for lifting is provided between the push rod plate and the second insert, and a spring is provided between the first connecting rod and the lower die plate; a second connecting rod for lifting is provided between the push rod plate and the ejector block.

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