Double-color transparent low-temperature-resistant preservation box cover outer rubber coating mold

The tightening and sealing mechanism solves the problems of gel leakage and dust ingress caused by mold gaps, ensuring product quality.

CN223735281UActive Publication Date: 2025-12-30CHANGZHOU BESTFULL MOULD & PLASTICS CO LTD
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Patent Information

Application Number
CN202422983836.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-04
Publication Date
2025-12-30
Estimated Expiration
2034-12-04

AI Technical Summary

Technical Problem

When using existing molds to make box lids, gel may enter the gaps and affect product quality, and dust and other debris may also enter the mold gaps and affect product quality.

Method used

The tensioning and sealing mechanisms ensure a tight fit between the upper and lower molds, preventing gel leakage. The sealing mechanism also prevents dust from entering, thus improving product quality.

Benefits of technology

This effectively prevents gel from leaking out of the mold gaps, reduces dust entry, and improves product quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a double-color transparent low-temperature-resistant preservation box cover external rubber coating mold, which relates to the technical field of double-color transparent low-temperature-resistant preservation box covers, and is characterized in that a bottom plate is provided with a mold groove, two lower molds and two upper molds are stacked in the mold groove, and the two upper molds are respectively positioned at the tops of the two lower molds; semicircular openings are formed in the sides, close to each other, of the two upper dies, the tensioning mechanisms are arranged on the upper dies and the lower dies and used for tensioning the upper dies and the lower dies, the sealing mechanisms are arranged at the tops of the upper dies and used for sealing the semicircular openings, and a rectangular block is driven by a pulling block to extrude a spring. The limiting groove in the pulling block is aligned with the moving plate, the moving plate is inserted into the limiting groove, the pulling block is loosened, under the action of the spring, the pulling block and the moving plate tension the upper mold and the lower mold all the time, gel is prevented from leaking out of a gap between the upper mold and the lower mold, and then the product quality is improved.
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Description

Technical Field

[0001] This utility model relates to the technical field of two-color transparent low-temperature resistant food storage box lids, specifically a mold for the outer coating of a two-color transparent low-temperature resistant food storage box lid. Background Technology

[0002] Food storage containers come in three types: plastic containers, made of resin, generally with a temperature range of 120℃ to -20℃; tempered glass containers, made of ordinary tempered glass; and heat-resistant glass containers, made of borosilicate glass, which require molds to manufacture the lids.

[0003] Existing molds for making box lids use the weight of the upper mold to fit the lower mold, thus reducing the gap between the two molds. However, when gel is injected from the semi-circular opening, the gel may push up the upper mold, creating a gap between the two molds. Gel entering this gap can affect product quality. Furthermore, while waiting for the gel to solidify, dust and other debris may enter between the upper and lower molds through the semi-circular opening, further impacting the product. Therefore, technological innovation and design optimization are needed to improve the outer coating mold for the two-color transparent low-temperature resistant food storage box lid. Utility Model Content

[0004] Existing molds for making box lids rely on the weight of the upper mold to fit the lower mold, thus reducing the gap between them. However, when gel is injected from the semi-circular opening, it may push up the upper mold, creating a gap between the two. Gel entering this gap can affect product quality. Furthermore, while waiting for the gel to solidify, dust and other debris may enter between the upper and lower molds through the semi-circular opening, further impacting the product. To address these issues, this application provides a two-tone transparent, low-temperature resistant food storage box. The outer mold is covered with a plastic coating. A pull block drives a rectangular block to compress a spring, aligning the limiting groove on the pull block with a moving plate. The moving plate then inserts into the limiting groove. When the pull block is released, the pull block and the moving plate, under the action of the spring, keep the upper and lower molds taut, preventing gel from leaking out of the gaps between the upper and lower molds, thus improving product quality. At the same time, the sliding cover is slidable by the fixed block. The sliding cover moves the sliding block in the sliding groove, blocking the semi-circular opening and preventing dust from entering between the upper and lower molds, thus reducing the impact of dust on product quality.

[0005] The technical solution adopted by the embodiments of this application to solve its technical problem is:

[0006] A two-tone transparent, low-temperature resistant food storage container lid outer coating mold, including:

[0007] A base plate, wherein a mold groove is provided on the base plate, and two lower molds are symmetrically placed inside the mold groove;

[0008] Two upper molds are located on top of two lower molds, and each upper mold has a semi-circular opening on one side close to the other.

[0009] A tensioning mechanism, which is mounted on the upper and lower molds, is used to tension the upper and lower molds.

[0010] A sealing mechanism, located on the top of the upper mold, is used to seal the semi-circular opening.

[0011] In one possible implementation, protrusions are fixed at the four corners of the lower mold, and grooves are provided at the corresponding positions of the protrusions on the upper and lower molds. The protrusions and grooves match each other, which facilitates the alignment of the upper and lower molds and avoids misalignment between them.

[0012] In one possible implementation, the two semicircular openings correspond to each other, and the semicircular openings penetrate the upper mold, allowing gel to be poured between the upper and lower molds.

[0013] In one possible implementation, the tensioning mechanism includes a rectangular groove on the lower mold, a rectangular block sliding inside the groove, a pulling block fixed on the rectangular block, a spring located at the top of the rectangular block inside the rectangular groove, a limiting groove on the pulling block, a moving groove on the upper mold, and a moving plate inside the moving groove. When the pulling block is pulled upward, it causes the rectangular block to compress the spring, aligning the limiting groove on the pulling block with the moving plate. At this point, pulling the moving plate inserts it into the limiting groove. Releasing the pulling block, under the action of the spring, will always keep the upper and lower molds taut, preventing gel from leaking out of the gaps between the upper and lower molds, thereby improving product quality.

[0014] In one possible implementation, the movable plate can be inserted into the limiting groove, and the movable plate can slide within the movable groove, so that the pulling block can tighten the upper mold and the lower mold through the movable plate.

[0015] In one possible implementation, a guide post is provided inside the rectangular groove, the guide post passes through the rectangular block, the spring is sleeved on the outside of the guide post, both ends of the guide post are fixedly connected to the inner wall of the rectangular groove, the rectangular block can slide on the guide post, the guide post can guide the rectangular block, and at the same time the guide post can prevent the spring from falling out of the rectangular groove.

[0016] In one possible implementation, one of the two upper molds has a sliding groove at its top, a sliding block is provided inside the sliding groove, a sliding cover is fixed on the sliding block, and a fixing block is fixed on the sliding cover. The sliding cover can be slid by the fixing block, and the sliding cover will move the sliding block to slide in the sliding groove. The sliding cover will block the semi-circular opening to prevent dust from entering between the upper and lower molds from the semi-circular opening, thereby reducing the impact of dust on the quality of the product.

[0017] In one possible implementation, the upper mold and the lower mold facing each other are provided with corresponding glue grooves, and the glue grooves contain the product.

[0018] In one possible implementation, the base plate has a slot that can accommodate a pull block.

[0019] In summary, this utility model has at least one of the following beneficial technical effects:

[0020] 1. By pulling the rectangular block to compress the spring, the limiting groove on the pulling block is aligned with the moving plate, allowing the moving plate to insert into the limiting groove. When the pulling block is released, the pulling block and the moving plate, under the action of the spring, always keep the upper and lower molds taut, preventing gel from leaking out of the gaps between the upper and lower molds, thereby improving the quality of the product.

[0021] 2. By using the fixed block to slide the sliding cover, the sliding cover will move the sliding block to slide in the sliding groove. The sliding cover will block the semi-circular opening, preventing dust from entering between the upper and lower molds from the semi-circular opening, thus reducing the impact of dust on product quality. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is an exploded view of the overall structure of this utility model;

[0024] Figure 3 This is a schematic diagram of the base plate structure of this utility model;

[0025] Figure 4 This is a side sectional view of the upper and lower molds of this utility model.

[0026] Reference numerals in the attached drawings: 1. Base plate; 2. Upper mold; 3. Sliding groove; 4. Sliding cover; 5. Pulling block; 6. Groove; 7. Protrusion; 8. Product; 9. Lower mold; 10. Moving groove; 11. Moving plate; 12. Fixing block; 13. Mold groove; 14. Groove opening; 15. Rectangular groove; 16. Guide post; 17. Rectangular block; 18. Spring; 19. Limiting groove; 20. Semi-circular opening; 21. Sliding block. Detailed Implementation

[0027] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The instrument placement rack involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0028] This embodiment describes the specific structure of the outer coating mold for a two-color transparent, low-temperature resistant food storage box lid. See details below. Figures 1-4 As shown, the outer molding mold for the two-color transparent low-temperature resistant food storage container lid includes:

[0029] A base plate 1 is provided with a mold groove 13, and two lower molds 9 are symmetrically placed inside the mold groove 13.

[0030] Two upper molds 2 are located on top of two lower molds 9 respectively, and each of the two upper molds 2 has a semi-circular opening 20 on one side close to each other;

[0031] A tensioning mechanism is provided on the upper mold 2 and the lower mold 9, and is used to tension the upper mold 2 and the lower mold 9;

[0032] A sealing mechanism is located on the top of the upper mold 2 and is used to seal the semi-circular opening 20.

[0033] The lower mold 9 has protrusions 7 fixed at all four corners. The upper mold 2 and the lower mold 9 have grooves 6 at the corresponding positions of the protrusions 7. The protrusions 7 and the grooves 6 match each other, which facilitates the alignment of the upper mold 2 and the lower mold 9 and avoids misalignment between them.

[0034] Furthermore, the two semi-circular openings 20 correspond to each other, and the semi-circular openings 20 penetrate the upper mold 2, allowing gel to be poured between the upper mold 2 and the lower mold 9 through the semi-circular openings 20.

[0035] Currently, the most common molds used to make box lids on the market use the weight of the upper mold 2 to fit the lower mold 9, thereby reducing the gap between the upper mold 2 and the lower mold 9. However, when the gel is injected from the semi-circular opening 20, the gel may push up the upper mold 2, resulting in a gap between the upper mold 2 and the lower mold 9. If the gel enters the gap, it will affect the quality of the product 8.

[0036] The tensioning mechanism includes a rectangular groove 15 on the lower mold 9, a rectangular block 17 sliding inside the rectangular groove 15, a pulling block 5 fixed on the rectangular block 17, a spring 18 located at the top of the rectangular block 17 inside the rectangular groove 15, a limiting groove 19 on the pulling block 5, a moving groove 10 on the upper mold 2, and a moving plate 11 inside the moving groove 10. Pulling the pulling block 5 upward causes the rectangular block 17 to compress the spring 18, aligning the limiting groove 19 on the pulling block 5 with the moving plate 11. At this time, pulling the moving plate 11 inserts it into the limiting groove 19. Releasing the pulling block 5, under the action of the spring 18, will always keep the upper mold 2 and the lower mold 9 tensioned, preventing gel from leaking out from the gaps between the upper mold 2 and the lower mold 9, thereby improving the quality of the product 8. The moving plate 11 can be inserted into the limiting groove 19 and can slide within the moving groove 10, facilitating the pulling block 5 to tension the upper mold 2 and the lower mold 9 through the moving plate 11.

[0037] More importantly, a guide post 16 is provided inside the rectangular groove 15. The guide post 16 passes through the rectangular block 17. The spring 18 is sleeved on the outside of the guide post 16. Both ends of the guide post 16 are fixedly connected to the inner wall of the rectangular groove 15. The rectangular block 17 can slide on the guide post 16. The guide post 16 can guide the rectangular block 17. At the same time, the guide post 16 can also prevent the spring 18 from falling out of the rectangular groove 15.

[0038] While waiting for the gel to solidify into product 8, dust and other debris may enter between the upper mold 2 and the lower mold 9 through the semi-circular opening 20, thus affecting product 8.

[0039] One of the two upper molds 2 has a sliding groove 3 on its top. A sliding block 21 is provided inside the sliding groove 3. A sliding cover 4 is fixed on the sliding block 21. A fixing block 12 is fixed on the sliding cover 4. The sliding cover 4 can be slid by the fixing block 12. The sliding cover 4 will move the sliding block 21 to slide in the sliding groove 3. The sliding cover 4 will block the semi-circular opening 20 to prevent dust from entering between the upper mold 2 and the lower mold 9 from the semi-circular opening 20, thereby reducing the impact of dust on the quality of the product 8.

[0040] It is worth noting that the upper mold 2 and the lower mold 9 have corresponding glue grooves on their facing surfaces, and the product 8 is placed in the glue grooves.

[0041] In addition, a slot 14 is provided on the base plate 1, which can accommodate the pull block 5.

[0042] When the staff needs to use this mold, place the lower mold 9 in the mold groove 13 of the bottom plate 1, align the upper mold 2 with the lower mold 9 and place it on top of the upper mold 2, pull the pulling block 5 upward, the pulling block 5 drives the rectangular block 17 to squeeze the spring 18, so that the limiting groove 19 on the pulling block 5 is aligned with the moving plate 11, at this time pull the moving plate 11, so that the moving plate 11 is inserted into the limiting groove 19, release the pulling block 5, under the action of the spring 18, the upper mold 2 and the lower mold 9 will always be pulled tight, at this time pour the gel from the semi-circular opening 20, the gel enters the glue groove in the upper mold 2 and the lower mold 9, slide the sliding cover 4, wait for a period of time, after the gel solidifies into the product 8, the upper mold 2 and the lower mold 9 can be separated by reversing the operation.

[0043] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A two-color transparent low-temperature-resistant preservative box cover outer rubber coating mold, characterized in that, Include: The bottom plate (1), the bottom plate (1) is provided with a mold groove (13), two lower molds (9) are symmetrically placed inside the mold groove (13); Two upper molds (2), two upper molds (2) are respectively located at the top of two lower molds (9), and a semicircular opening (20) is formed on one side of the two upper molds (2) close to each other; Tensioning mechanism, the tensioning mechanism is provided on the upper mold (2) and the lower mold (9), which is used for tensioning the upper mold (2) and the lower mold (9); Sealing mechanism, the sealing mechanism is provided on the top of the upper mold (2), which is used for sealing the semicircular opening (20).

2. The two-color transparent low-temperature-resistant preservative box cover outer rubber coating mold of claim 1, wherein: The lower mold (9) is fixed with a protrusion (7) at four corners, the upper mold (2) and the lower mold (9) are provided with a recess (6) corresponding to the position of the protrusion (7), and the protrusion (7) and the recess (6) are matched with each other.

3. The two-color transparent low-temperature-resistant preservative box cover outer rubber coating mold of claim 1, wherein: Two semicircular openings (20) correspond to each other, and the semicircular opening (20) penetrates the upper mold (2).

4. The two-color transparent low-temperature-resistant preservative box cover outer rubber coating mold of claim 1, wherein: The tensioning mechanism includes a rectangular groove (15) on the lower mold (9), a rectangular block (17) is slidably arranged in the rectangular groove (15), a pulling block (5) is fixed on the rectangular block (17), a spring (18) is arranged on the top of the rectangular block (17) in the rectangular groove (15), a limiting groove (19) is formed on the pulling block (5), a moving groove (10) is formed on the upper mold (2), and a moving plate (11) is arranged in the moving groove (10).

5. The two-color transparent low-temperature-resistant preservative box cover outer rubber coating mold of claim 4, wherein: The moving plate (11) can be inserted into the limiting groove (19), and the moving plate (11) can slide in the moving groove (10).

6. The two-color transparent low-temperature-resistant preservative box cover outer rubber coating mold of claim 5, wherein: The rectangular groove (15) is provided with a guide column (16), the guide column (16) penetrates the rectangular block (17), the spring (18) is sleeved outside the guide column (16), and the guide column (16) is fixedly connected with the inner wall of the rectangular groove (15) at both ends.

7. The two-color transparent low-temperature-resistant preservative box cover outer rubber coating mold of claim 1, wherein: One of the two upper molds (2) is provided with a sliding groove (3) at the top, a sliding block (21) is arranged in the sliding groove (3), a sliding cover (4) is fixed on the sliding block (21), and a fixed block (12) is fixed on the sliding cover (4).

8. The two-color transparent low-temperature-resistant preservative box cover outer rubber coating mold of claim 1, wherein: Opposite surfaces of the upper mold (2) and the lower mold (9) are provided with corresponding glue grooves, and the glue grooves are provided with products (8).

9. The two-color transparent low-temperature-resistant preservative box cover outer rubber coating mold of claim 1, wherein: The slot (14) is formed on the bottom plate (1), and the slot (14) can accommodate the pulling block (5).