Glue sealing structure of card support rubber coating mold

By introducing a pre-stressed rib structure into the Cato overmolding mold, the problem of glue overflow during the injection molding of Cato products is solved, the uniform flow and tight fit of the silicone strip are achieved, and the product's sealing and production efficiency are improved.

CN223456389UActive Publication Date: 2025-10-21DONGGUAN JIANBANG ELECTRONICS CO LTD
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Patent Information

Application Number
CN202422551366.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-22
Publication Date
2025-10-21
Estimated Expiration
2034-10-22

AI Technical Summary

Technical Problem

During the overmolding process of card tray products, glue overflow leads to reduced product quality and low production efficiency.

Method used

A card tray overmolded mold sealing structure is adopted, including an upper mold and a lower mold, with a groove for placing the card tray between the two. Pre-compression ribs are provided at the position where the silicone strip is injection-molded in the groove. The pre-compression ribs fit the side edges of the silicone strips and have a height of 0.01-0.05 mm. They are designed as straight lines with arched protrusions to guide the flow of silicone material and apply pressure.

Benefits of technology

The design of pre-stressed ribs ensures uniform pressure on the silicone strip during the injection molding process, avoiding deformation or glue overflow, improving sealing and waterproof performance, reducing glue cleaning problems, and improving production efficiency and product quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a glue sealing structure of a card support glue coating mould, which comprises a mould whole body, the mould whole body comprises a glue sealing mould, the glue sealing mould comprises a card support, the glue sealing mould comprises an upper mould and a lower mould, the upper mould and the lower mould are both provided with injection molding holes, a groove for placing the card support is arranged between the upper mould and the lower mould, and the card support is arranged in the groove. A pre-pressing rib is arranged at the position, where the silica gel strip is formed through injection molding, in the groove, and the pre-pressing rib ensures that the silica gel strip is evenly pressed in the card holder rubber coating mold, deformation and rubber overflowing are prevented, material flowing is guided, and injection molding stability is improved. After the local pre-pressing convex ribs are added, the trouble caused by excessive glue in the silica gel coating process to the glue removing efficiency of the subsequent process can be effectively prevented, the manual glue removing efficiency can be greatly improved, the tight attachment of the silica gel strip and the clamping support is promoted, the sealing and waterproof performance is enhanced, and the structural strength is improved, so that the product quality and the market competitiveness are improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of glue sealing structure, specifically is card holder glue sealing mould glue sealing structure. BACKGROUND

[0002] In the field of injection mould, especially in the glue sealing injection molding process of card holder product, the glue overflow problem has been the key factor influencing product quality and production efficiency. In the injection molding process, due to the mould matching tolerance, material fluidity and improper injection parameter control and other reasons, the soft glue material often overflows the set range of the mould during injection molding, covers the area that should not be covered, forms the glue overflow phenomenon, and the glue overflow in the silicone glue sealing process causes the trouble of glue cleaning efficiency in the later process, and reduces the production efficiency. SUMMARY

[0003] In order to overcome the deficiency of prior art scheme, the utility model provides card holder glue sealing mould glue sealing structure, can effectively solve the problem of glue overflow in the silicone glue sealing process proposed in the background art.

[0004] The utility model discloses a technical scheme that solves the technical problems: card holder glue sealing mould glue sealing structure, including a mould whole, the mould whole includes glue sealing mould, the glue sealing mould includes card holder, the glue sealing mould includes upper die and lower die, the upper die and lower die all are provided with injection molding hole, the recess of placing card holder is arranged between the upper die and lower die, the position of the silicone rubber strip formed by injection molding in the recess is provided with pre-pressing rib.

[0005] Further, the pre-pressing rib is attached to the surface of the upper die and the lower die, and the height of the pre-pressing rib is 0.01mm to 0.05mm.

[0006] Further, the pre-pressing rib is pressed on both side edges of the silicone rubber strip.

[0007] Further, the pre-pressing rib on the outer side of the silicone rubber strip is smaller than the pre-pressing rib on the inner side of the silicone rubber strip.

[0008] Further, the setting path of the pre-pressing rib on the inner side of the silicone rubber strip is a straight line with an arched protrusion.

[0009] Further, the height of the pre-pressing rib is 0.03mm, and the pre-pressing rib is only arranged at the edge part of the silicone rubber strip in contact with the card holder.

[0010] Further, the pre-pressing rib on the inner side of the silicone rubber strip is arranged as a continuous straight line with uniformly distributed arched protrusions, and the distance between the highest point of each arched protrusion and the straight line part is not more than 0.1mm.

[0011] Further, the mould whole further includes a positioning mechanism for fixing the card holder, and an auxiliary device for applying additional pressure during injection molding.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] The presence of the pre-pressing ribs can ensure that the silica gel strip is subjected to uniform pressure during injection molding, thereby accurately controlling the shape and size of the silica gel strip and avoiding deformation or overflow of the silica gel strip during injection molding.

[0014] The pre-pressing ribs can guide the flow of the silica gel material in the mold, ensuring that the silica gel material can be uniformly and stably filled into the grooves of the mold, thereby improving the stability and controllability of the injection molding process.

[0015] The pre-pressing ribs enable the silica gel strip to better fit the surface of the card holder during injection molding, reducing the gap between the silica gel strip and the card holder, thereby improving the sealing performance and waterproof performance of the silica gel strip.

[0016] After adding the local pre-pressing ribs, the overflow of silica gel during the silica gel encapsulation process can be effectively prevented, and the efficiency of manual glue removal can be greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structural schematic diagram of the utility model;

[0018] Figure 2 is Figure 1 is an enlarged view of structure A;

[0019] Figure 3 is a sectional view of the encapsulation structure of the utility model;

[0020] Figure 4 is a whole three-dimensional view of the mold of the utility model;

[0021] Figure 5 is a three-dimensional view of the encapsulation mold of the utility model.

[0022] Reference numerals in the drawings:

[0023] 1-Whole mold, 2-Encapsulation mold, 3-Injection hole, 4-Card holder, 5-Groove, 6-Silica gel strip, 7-Pre-pressing rib, 21-Upper mold, 22-Lower mold. DETAILED DESCRIPTION

[0024] The embodiments of the present disclosure will be described in detail below with reference to the drawings.

[0025] Following, specific, concrete examples are used to illustrate the embodiments of the present disclosure, and those skilled in the art can easily understand other advantages and effects of the present disclosure from the disclosure. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, not all. The present disclosure can also be implemented or applied by other different specific embodiments, and various modifications or changes can be made to the details in the specification without departing from the spirit of the present disclosure. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present disclosure. Embodiments

[0026] As Figures 1-5 shown, the utility model provides card holder bag rubber mold glue sealing structure, including a mold whole 1, mold whole 1 includes glue sealing mold 2, glue sealing mold 2 includes card holder 4, glue sealing mold 2 includes upper die 21 and lower die 22, upper die 21 and lower die 22 are provided with injection molding hole 3, upper die 21 and lower die 22 between the recess 5 of placing card holder 4 is provided with, the position of the recess 5 that injection molding forms silica gel strip 6 is provided with pre -stress 7.

[0027] The existence of pre-stress 7 can ensure that silica gel strip 6 receives uniform pressure during injection molding, thereby accurately controlling the shape and size of silica gel strip 6, avoiding deformation or overflow phenomenon of silica gel strip 6 during injection molding.

[0028] Pre-stress 7 can guide the flow of silica gel material in the mold, ensuring that the silica gel material can be uniformly and stably filled into the recess 5 of the mold, thereby improving the stability and controllability of the injection molding process.

[0029] Pre-stress 7 allows silica gel strip 6 to better fit the surface of card holder 4 during injection molding, reducing the gap between silica gel strip 6 and card holder 4, thereby improving the sealing performance and waterproof performance of silica gel strip 6.

[0030] Referring to Figure 2 and Figure 3 , pre-stress 7 is attached to the surface of upper die 21 and lower die 22, and the height of pre-stress 7 is 0.01mm to 0.05mm.

[0031] The small height of pre-stress 7 can accurately control the flow path and filling speed of silica gel material in the mold, ensuring that silica gel strip 6 can be uniformly and accurately filled into the recess 5 of the mold, avoiding defects such as air bubbles and shrinkage.

[0032] The pre-pressing ribs 7 can apply pressure to the silicone material during the injection molding process, making it more tightly bonded together, thereby improving the mechanical strength and durability of the silicone strip 6.

[0033] Reducing mold adjustment time: due to the height precision and stability of the pre-pressing ribs 7, the adjustment time of the mold can be reduced during production, improving production efficiency.

[0034] Referring to Figure 1 , Figure 2 and Figure 3 , the pre-pressing ribs 7 press on both sides of the edges of the silicone strip 6. The pre-pressing ribs 7 press on both sides of the edges of the silicone strip 6, which can ensure the accuracy of the edge shape of the silicone strip 6 during the injection molding process, avoiding defects such as unevenness, waviness or burr on the edge; through the compression effect of the pre-pressing ribs 7, the edges of the silicone strip 6 can be more tightly fitted to the mold and the clamping bracket 4, thereby improving the sealing performance of the edges and preventing the penetration of liquid, gas or solid particles; the compression effect of the pre-pressing ribs 7 on the edges of the silicone strip 6 can enhance the structural strength of the edges, so that the silicone strip 6 can better resist deformation and damage when subjected to external force; since the pre-pressing ribs 7 can accurately control the shape and quality of the edges of the silicone strip 6, the edge trimming process of the silicone strip 6 can be reduced during production, improving production efficiency and reducing costs.

[0035] Referring to Figure 3 , the width of the pre-pressing ribs 7 on the outer side of the silicone strip 6 is smaller than that on the inner side of the silicone strip 6.

[0036] The design of the narrower pre-pressing ribs 7 on the outer side effectively guides the flow direction of the silicone material in the mold, ensuring that the silicone can be more evenly filled into the grooves 5 of the mold, especially in the edge and corner areas, thereby avoiding injection defects; due to the smaller width of the pre-pressing ribs 7 on the outer side, the pressure required for the silicone material to pass through these areas during the injection molding process will also be reduced accordingly, which helps to reduce the energy consumption of the injection molding machine and the wear of the mold.

[0037] The design of the wider pre-pressing ribs 7 on the inner side can provide more compression force, so that the silicone strip 6 can better fit the edges of the mold and the clamping bracket 4 during the injection molding process, thereby improving the edge sealing performance of the product and preventing the penetration of liquid, gas or solid particles; the design of the narrower pre-pressing ribs 7 on the outer side can reduce the deformation or overflow phenomenon of the silicone strip 6 during the injection molding process due to uneven pressure, thereby optimizing the edge appearance of the product and improving the overall aesthetics of the product.

[0038] The wider inner pre-pressing rib 7 design can increase the compression amount of the silicone strip 6 during the injection molding process, thereby improving the structural strength and durability of the silicone strip 6. This design helps to resist external impact and vibration, improving the stability and reliability of the product; optimize stress distribution: by adjusting the width difference of the inner and outer pre-pressing ribs 7, the stress distribution of the silicone strip 6 during the injection molding process can be optimized, avoiding cracking or falling caused by stress concentration, thereby improving the service life of the product.

[0039] Referring to Figure 1 , the setting path of the inner pre-pressing rib 7 on the silicone strip 6 is a straight line with an arch-shaped protrusion.

[0040] The straight-line pre-pressing rib 7 can ensure that the silicone flows uniformly along the predetermined path during the injection molding process, avoiding turbulence or stagnation of the silicone in the mold. By optimizing the flow path of the silicone, the pre-pressing rib 7 design with a straight line accompanied by an arch-shaped protrusion helps to reduce defects such as bubbles, shrinkage, and material deficiency during the injection molding process, improving the injection molding quality and consistency of the product.

[0041] The pre-pressing rib 7 design with a straight line accompanied by an arch-shaped protrusion can more effectively disperse the stress generated during the injection molding and use of the silicone strip 6, avoiding damage caused by stress concentration, which helps to improve the stability and reliability of the silicone strip 6 and prolong the service life of the product.

[0042] The arch-shaped protrusion pre-pressing rib 7 design provides greater compression, allowing the silicone strip 6 to better fit the edges of the mold and the card holder 4 during the injection molding process, thereby improving the sealing performance of the product. This design helps to prevent the penetration of liquids, gases, or solid particles, ensuring the sealing and waterproof performance of the product.

[0043] Referring to Figure 3 , the height of the pre-pressing rib 7 is 0.03 mm, and it is only set on the edge part of the silicone strip 6 in contact with the card holder 4, to ensure that the silicone strip 6 tightly fits the card holder 4 during the injection molding process without causing overflow.

[0044] The 0.03 mm height of the pre-pressing rib 7 can ensure that the silicone strip 6 has sufficient contact pressure with the edge of the card holder 4 during the injection molding process, thereby achieving a tight fit. This helps to prevent the penetration of liquids, gases, or solid particles, improving the sealing and waterproof performance of the product; since the pre-pressing rib 7 is only set on the edge part of the silicone strip 6 in contact with the card holder 4, and the height is moderate, it can effectively prevent the silicone from overflowing from the edge of the mold during the injection molding process. This helps to maintain the cleanliness of the mold and the neat appearance of the product, while reducing production costs and waste rates.

[0045] The pre-pressing ribs 7 can guide the flow direction of the silicone material during injection molding, ensuring that the silicone can be uniformly and stably filled into the grooves 5 of the mold. This helps to reduce injection defects such as bubbles, shrinkage and material deficiency, thereby improving the injection quality and consistency of the product; by precisely controlling the height and position of the pre-pressing ribs 7, the silicone strip 6 can be uniformly compressed during injection molding, thereby precisely controlling the size and shape of the silicone strip 6, which helps to improve the accuracy and reliability of the product.

[0046] The pre-pressing ribs 7 can increase the compression amount of the silicone strip 6 during injection molding, especially in the edge area. This helps to improve the structural strength and durability of the silicone strip 6, preventing problems such as cracking or falling off during use; by reasonably setting the height and position of the pre-pressing ribs 7, the stress generated during injection and use of the silicone strip 6 can be more effectively dispersed. This helps to avoid damage caused by stress concentration, improving the stability and reliability of the product.

[0047] Referring to Figure 1 and Figure 3 , the pre-pressing ribs 7 on the inner side of the silicone strip 6 are arranged in a continuous straight line with uniformly distributed arch-shaped protrusions, and the highest point of each arch-shaped protrusion is not more than 0.1 millimeter away from the straight line part, to optimize the injection effect and mechanical properties of the silicone strip 6.

[0048] The continuous straight line part can ensure that the silicone flows uniformly along the predetermined path during injection molding, avoiding turbulence or stagnation of the silicone in the mold.

[0049] By optimizing the flow path of the silicone, defects such as bubbles, shrinkage and material deficiency generated during injection molding can be reduced, improving the injection quality and consistency of the product.

[0050] The presence of arch-shaped protrusions can also help to expel gas from the mold, further reducing the occurrence of defects.

[0051] The pre-pressing ribs 7 with arch-shaped protrusions can increase the compression amount of the silicone strip 6 during injection molding, especially in the edge area, thereby improving the structural strength and durability of the silicone strip 6; this design also helps to resist external impact and vibration, preventing problems such as cracking or falling off during use of the silicone strip 6.

[0052] The pre-pressing ribs 7 arranged in a continuous straight line with arch-shaped protrusions can more effectively disperse the stress generated during injection and use of the silicone strip 6; this design helps to avoid damage caused by stress concentration, improving the stability and reliability of the product.

[0053] The mold body 1 further comprises a positioning mechanism for fixing the card holder 4 and an auxiliary device for applying additional pressure during injection molding to ensure that the silica gel strip 6 can uniformly and tightly wrap the card holder 4 during injection molding, thereby improving production efficiency and product quality.

[0054] In the card holder 4 encapsulation mold structure, the positioning mechanism and the auxiliary device are added to improve the precision and efficiency of injection molding and ensure product quality.

[0055] Positioning mechanism: The main function of the positioning mechanism is to ensure that the card holder 4 maintains the correct position during injection molding and prevents it from shifting or rotating under high temperature and pressure. Through precise positioning, it can ensure that the contact surface between the silica gel strip 6 and the card holder 4 is uniform, thereby improving the precision and consistency of the molded product, reducing injection defects caused by inaccurate positioning of the card holder 4, and reducing waste.

[0056] Auxiliary device: Apply additional pressure: During injection molding, the auxiliary device can apply additional pressure to ensure that the silica gel strip 6 uniformly and tightly wraps the card holder 4 during injection molding. By controlling the pressure, it can prevent the silica gel strip 6 from overflowing the edge of the card holder 4 during injection molding, reducing waste and material waste. Improve product quality: Uniform pressure distribution helps to improve the bonding strength between the silica gel strip 6 and the card holder 4, improving the durability and reliability of the product. Improve production efficiency: The auxiliary device can speed up the injection molding process, shorten the production cycle, and improve the overall efficiency of the production line.

[0057] In the description of the present application, it should be understood that the terms "intermediate", "length", "upper", "lower", "front", "rear", "vertical", "horizontal", "inner", "outer", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the present application.

[0058] In the present application, unless otherwise specified and limited, the first feature is "on" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. The meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0059] In the utility model, unless another definite provision and limitation, the term "mount", "link", "connect", "fix" and so on term should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electric connection or each other can communicate;Can be direct connection, also can indirectly connect through intermediate medium, can be two element inside's intercommunication or two element's interaction relation, unless another definite limitation.For ordinary skill in the art personnel, can understand the above term in the utility model's concrete meaning according to specific circumstances.

[0060] The above is only for illustrating the embodiment of the utility model, and is not used for limiting the utility model, for the ordinary skill in the art personnel, any modification, equivalent replacement, improvement etc. that is made without creative work within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A structure for sealing the glue of a card packing glue mold, characterized in that, The mold body comprises a sealing glue mold, the sealing glue mold comprises an upper mold and a lower mold, the upper mold and the lower mold are provided with injection molding holes, and the upper mold and the lower mold are provided with a groove for placing the card holder.

2. The card holder bag rubber mold sealing structure according to claim 1, wherein: The pre-pressing ribs are in contact with the surfaces of the upper mold and the lower mold, and the height of the pre-pressing ribs is 0.01-0.05 mm.

3. The card holder bag rubber mold sealing structure according to claim 2, characterized in that: The pre-pressing ribs are in contact with the surfaces of the upper mold and the lower mold, and the height of the pre-pressing ribs is 0.01-0.05 mm.

4. The card holder bag rubber mold sealing structure according to claim 3, characterized in that: The pre-pressing ribs are in contact with the surfaces of the upper mold and the lower mold, and the height of the pre-pressing ribs is 0.01-0.05 mm.

5. The card holder bag rubber mold sealing structure according to claim 4, characterized in that: The pre-pressing ribs are in contact with the surfaces of the upper mold and the lower mold, and the height of the pre-pressing ribs is 0.01-0.05 mm.

6. The card holder bag rubber mold sealing structure according to claim 4, characterized in that: The pre-pressing ribs are in contact with the surfaces of the upper mold and the lower mold, and the height of the pre-pressing ribs is 0.01-0.05 mm.

7. The card holder bag rubber mold sealing structure according to claim 5, characterized in that: The pre-pressing ribs are in contact with the surfaces of the upper mold and the lower mold, and the height of the pre-pressing ribs is 0.01-0.05 mm.

8. The card holder bag rubber mold sealing structure according to any one of claims 1 to 7, characterized in that: The mold body further comprises a positioning mechanism for fixing the card holder and an auxiliary device for applying additional pressure during injection molding.