Glass bottle externally coated with silica gel, silica gel coating forming mold and processing technology

Abstract

The invention relates to the technical field of glass containers, and particularly discloses a glass bottle externally coated with silica gel, a silica gel coating forming mold and a processing technology. Wherein the glass bottle body comprises a bottle body, a bottle opening and a bottle bottom, and the bottle bottom is provided with a bottle bottom groove which is concave inwards; the silica gel coating structure comprises a positioning bottom pad arranged at the bottom of the bottle bottom in an attached mode, a limiting ring arranged below the bottle opening in a sleeving mode and a silica gel layer; a radial structure matched with the bottle bottom in shape is arranged on the side, close to the bottle bottom, of the positioning bottom pad, the radial structure extends from the inner side of the positioning bottom pad to the outer side edge in a radial mode, the bottom end of the silica gel layer and the radial structure are integrally formed, and the top end of the silica gel layer and the limiting ring are integrally formed. The glass bottle body and the silica gel layer are integrally formed by arranging the positioning bottom pad and the limiting ring, the stable silica gel full-coating effect of the glass bottle body is achieved, and the forming stability and the product quality are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of glass containers, in particular to a glass bottle coated with silica gel, a silica gel coating forming die and a processing technology. BACKGROUND

[0002] Glass bottles are widely used in the field of infant products due to their high transparency, non-toxicity, non-odor, and high temperature resistance. Compared with plastic bottles, glass bottles are healthier, safer, and suitable for high temperature sterilization. However, glass bottles are prone to breakage and slippery, which can cause danger during use. To solve these problems, glass bottles coated with silica gel have appeared on the market. Silica gel has good slip resistance and certain cushioning performance, which can reduce the problem of slippery and breakage of the baby bottle to a certain extent. However, due to the limitations of the manufacturing process of glass bottles, the surface precision after forming is relatively low and the weight is relatively heavy, which cannot be clamped stably like plastic baby bottles. In the production process, in order to integrally form the silica gel layer on the bottle body and the bottle bottom, the clamping structure cannot touch the bottle body and the bottle bottom, and there is no clamping, positioning is not accurate, and after forming, the thickness of the silica gel layer is not uniform. In addition, due to the weight itself, only the simple placement of the glass bottle begins to form, the glass bottle is prone to tilting and generates defective products, etc. This makes the silica gel baby bottle on the market usually only coated with silica gel on the bottle body, and it is difficult to achieve complete coating protection of the baby bottle. This incomplete coating method cannot fully play the protective role of silica gel. In addition, due to the use of silica gel to coat the glass bottle, the edges of the silica gel are prone to unevenness, uneven thickness, and forming position deviation, etc., which makes the overall coating effect of the glass bottle poor, the base is unstable, prone to tilting, and the edges overflow, etc. Defects. SUMMARY

[0003] The present application aims to at least solve one of the technical problems existing in the prior art.

[0004] To achieve the above-mentioned purpose, the present application provides a glass bottle coated with silica gel, a silica gel coating forming die and a processing technology, which adopts the following technical scheme:

[0005] The first aspect embodiment of the present application provides a glass bottle coated with silica gel, comprising:

[0006] The glass bottle body comprises a bottle body, a bottle mouth and a bottle bottom, and the bottle bottom has a bottle bottom groove recessed inwardly;

[0007] The silicone-coated structure includes a positioning pad that fits against the bottom of the bottle, a limiting ring that is fitted below the bottle opening, and a silicone layer disposed between the positioning pad and the limiting ring. The silicone layer covers the outer wall of the glass bottle body. The positioning pad has a radial structure that matches the shape of the bottle bottom on the side near the bottom of the bottle. The radial structure extends radially from the inner side of the positioning pad to the outer edge. The bottom end of the silicone layer is integrally formed with the radial structure, and the top end of the silicone layer is integrally formed with the limiting ring.

[0008] According to some embodiments of the present invention, the radial structure includes a through hole disposed at the center of the positioning base and penetrating the positioning base, and a plurality of first convex ribs extending from the edge side of the through hole to the outer edge side of the positioning base, wherein each of the first convex ribs is arranged radially at intervals, and a convex rib groove is formed between two adjacent first convex ribs.

[0009] According to some embodiments of the present invention, the radial structure further includes one or more second convex ribs disposed between two adjacent first convex ribs, the second convex ribs being radially distributed outward from the center point of the positioning base pad, and the length of the first convex ribs being greater than the length of the second convex ribs.

[0010] According to some embodiments of the present invention, a plurality of protrusions are provided at the outer edge of the bottle bottom groove, and a first groove matching the shape of the protrusions is provided on the radial structure.

[0011] According to some embodiments of the present invention, the limiting ring includes an elastic annular portion that fits against the outer wall of the bottle opening and a limiting portion that protrudes radially outward along the upper edge of the annular portion. A second groove is provided at the bottle opening, the limiting ring is embedded in the second groove, and the top end of the silicone layer abuts against the limiting portion.

[0012] According to some embodiments of the present invention, a plurality of anchoring structures are provided on the inner and / or outer sidewalls of the annular portion, the anchoring structures being used to increase the connection strength between the annular portion and the silicone layer.

[0013] A second aspect of the present invention provides a silicone overmolding mold for molding a glass bottle coated with silicone, comprising:

[0014] The upper template, the lower template, and at least two slider structures disposed on the lower template that can move closer to or further away from each other, each slider structure being used to clamp the glass bottle body together, and the inner side of each slider structure being provided with a molding groove for molding the silicone layer;

[0015] The bottle positioning assembly includes a lower fixing structure disposed on the lower template and an upper fixing structure disposed at the bottom of the upper template. The lower fixing structure is used to fix the bottle mouth, and the upper fixing structure is used to press the positioning pad downwards onto the bottom of the bottle. The top end of the forming groove can abut against the positioning pad or the upper fixing structure, and the bottom end of the forming groove can abut against the limiting ring.

[0016] The gating system includes a gating channel disposed within the upper fixed structure and connected to the radial structure. The injected liquid can enter the radial structure along the gating channel and then disperse along the radial structure into the molding cavity for molding the silicone layer.

[0017] According to other embodiments of the present invention, the upper fixing structure is a protruding block that is wider at the top and narrower at the bottom. The diameter of the lower end face of the upper fixing structure is larger than the diameter of the positioning base pad. The slider structure includes a first slider and a second slider arranged opposite to each other, and a guide structure for guiding the first slider and the second slider to move closer or further apart. The first slider and the second slider are each provided with an arc-shaped groove on the side of the upper fixing structure that matches the side shape of the upper fixing structure.

[0018] According to other embodiments of the present invention, the lower fixing structure includes a positioning protrusion that matches the shape of the inner side of the bottle mouth and an annular positioning groove disposed around the outer periphery of the positioning protrusion. The annular positioning groove is used to fix the bottle mouth, and the positioning protrusion is used to be inserted into the bottle mouth to achieve radial positioning of the glass bottle body.

[0019] According to other embodiments of the present invention, the bottle positioning assembly further includes an inner clamping structure disposed on the lower template. The inner clamping structure includes a plurality of first swing rods passing through the positioning protrusion from bottom to top, a second swing rod connected to the bottom end of the first swing rod, a rotating structure disposed at the connection between the first swing rod and the second swing rod, and a pressing structure disposed at the end of the second swing rod. Each of the first swing rods can rotate and abut against and be fixed to the inner sidewall of the bottle body. When the slider structure closes the mold, it can press the pressing structure so that the second swing rod drives the first swing rod to rotate through the rotating structure.

[0020] A third aspect of the present invention provides a processing technology, comprising:

[0021] S1: Stretch the silicone limiting ring and fit it onto the outside of the bottle opening;

[0022] S2: Fix the bottle opening downwards onto the lower fixing structure;

[0023] S3: Place the silicone positioning pad on the bottom of the bottle;

[0024] S4: The mold closes, the upper template moves the upper fixed structure downward, and at the same time moves each of the slider structures closer together to abut; the pouring channel is inserted into the radial structure, the upper fixed structure presses the positioning pad downward onto the bottom of the bottle, and presses the bottle mouth downward onto the lower fixed structure; the top end of the forming groove of the slider structure clamps the positioning pad or the upper fixed structure, and the bottom end of the forming groove of the slider structure clamps the limiting ring;

[0025] S5: Add the silicone raw material to the injection molding machine and melt it into a molten state;

[0026] S6: Molten silicone solution is injected into the radial structure along the casting channel. The silicone solution enters the molding cavity along the radial structure and flows downward to one side of the limiting ring.

[0027] S7: Heat the mold to vulcanize the silicone solution;

[0028] S8: The mold is opened, the upper template moves upward, the slider structure slides away from each other, and the glass bottle covered with silicone is taken out.

[0029] The glass bottle with silicone coating according to the present invention has at least the following beneficial effects:

[0030] The positioning base fits snugly against the bottom of the glass bottle, its radial structure matching the grooves on the bottle bottom, providing a stable base for the glass bottle. The silicone material, during pressing, eliminates molding errors in the glass bottle, ensuring the stability of the bottle's bottom. Simultaneously, the bottom end of the silicone layer and the radial structure of the positioning base are integrally molded, forming a seamless structure that ensures a tight connection between the silicone layer and the bottle bottom. The silicone layer wraps around the bottle body, significantly improving anti-slip performance, while its good elasticity cushions external forces, effectively preventing drops and protecting the glass bottle. A limiting ring, integrally molded with the top of the silicone layer, fits below the bottle mouth, limiting the edge position of the silicone layer's tip to prevent overflow and improve molding quality. The positioning base and limiting ring achieve double fixation from top to bottom, ensuring positioning without affecting the silicone layer's coverage, thus improving product stability and quality.

[0031] The silicone coating molding mold of the present invention has at least the following beneficial effects:

[0032] The upper fixing structure presses down on the positioning base pad, working in conjunction with the lower fixing structure to secure the glass bottle. This pressure fixation is achieved without direct contact with the glass bottle, ensuring proper silicone coating. The contact between the limiting ring and the slider structure restricts the edge position of the silicone layer, ensuring consistency and improving product quality. The pouring channel, combined with the radial structure of the positioning base pad, allows the silicone solution to disperse into the molding cavity from within the radial structure. While the upper fixing structure presses down on the positioning base pad, it does not affect the molding of the silicone layer. The positioning base pad, made of silicone, undergoes elastic deformation under pressure, eliminating variations in precision during the molding of individual glass bottles, achieving stable fixation without compromising the accuracy of the injection molding process.

[0033] The processing technology of the present invention has at least the following beneficial effects:

[0034] Using the above processing technology, the limiting ring and positioning base are pre-processed, and a stable coating of the silicone layer on the glass bottle is achieved through secondary molding. The positioning base serves as a bottom stabilizing element for the glass bottle, while the limiting ring defines the top position of the silicone layer, maintaining molding consistency. Simultaneously, the upper fixing structure presses down on the silicone positioning base to achieve clamping and fixation without direct contact with the glass bottle body. The silicone solution is injected from within the radial structure, avoiding any impact of the clamping action on the silicone coating. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the structure of an embodiment of the first aspect of the present invention;

[0036] Figure 2 This is a schematic diagram of the structure of a glass bottle body according to an embodiment of the first aspect of the present invention;

[0037] Figure 3 This is a schematic diagram of the structure of a positioning base pad according to an embodiment of the first aspect of the present invention. Figure 1 ;

[0038] Figure 4 This is a schematic diagram of the structure of a positioning base pad according to an embodiment of the first aspect of the present invention. Figure 2 ;

[0039] Figure 5 This is a schematic diagram of the structure of a limiting ring according to an embodiment of the first aspect of the present invention;

[0040] Figure 6 This is a schematic diagram of the structure of a silicone layer according to an embodiment of the first aspect of the present invention;

[0041] Figure 7 This is a schematic diagram of the structure of an embodiment of the second aspect of the present invention;

[0042] Figure 8This is a schematic diagram of the upper template structure according to an embodiment of the second aspect of the present invention;

[0043] Figure 9 This is a cross-sectional view along the left-right direction during mold opening, according to an embodiment of the second aspect of the present invention.

[0044] Figure 10 This is a cross-sectional view along the left-right direction during mold closing, according to an embodiment of the second aspect of the present invention.

[0045] Figure 11 This is a cross-sectional view along the front-to-back direction during mold closing, according to an embodiment of the second aspect of the present invention.

[0046] Figure 12 This is a schematic diagram of the internal clamping structure according to an embodiment of the second aspect of the present invention;

[0047] Figure 13 This is a schematic diagram of the internal clamping structure during mold closing, according to an embodiment of the second aspect of the present invention.

[0048] Figure 14 This is a schematic diagram of the state of the inner clamping structure during mold opening, according to an embodiment of the second aspect of the present invention. Detailed Implementation

[0049] The present invention is provided below with reference to the accompanying drawings to aid in a full understanding of the various embodiments of the invention as defined by the claims and their equivalents. The description includes various specific details to aid understanding, but these details should be considered merely exemplary. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the various embodiments described herein without departing from the scope and spirit of the invention.

[0050] In the description of this invention, the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0051] It should be understood that when one element (e.g., the first element) is “connected” to another element (e.g., the second element), the element may be directly connected to the other element, or there may be an intermediary element (e.g., the third element) between the element and the other element.

[0052] One embodiment of the present invention provides a glass bottle coated with silicone, such as... Figures 1-6 As shown, it includes:

[0053] The glass bottle body 1 includes a bottle body 101, a bottle mouth 102 and a bottle bottom 103, and the bottle bottom 103 has an inwardly recessed bottle bottom groove 104;

[0054] The silicone-coated structure includes a positioning pad 201 fitted to the bottom of the bottle bottom 103, a limiting ring 202 fitted below the bottle mouth 102, and a silicone layer 203 disposed between the positioning pad 201 and the limiting ring 202. The silicone layer 203 covers the outer wall of the glass bottle body 1. The positioning pad 201 has a radial structure 204 that matches the shape of the bottle bottom 103 on the side near the bottle bottom 103. The radial structure 204 extends radially from the inner side of the positioning pad 201 to the outer edge. The bottom end 214 of the silicone layer 203 is integrally formed with the radial structure 204, and the top end 215 of the silicone layer 203 is integrally formed with the limiting ring 202.

[0055] A silicone layer 203 covers the exterior of the glass bottle body 1 to provide anti-slip, wear-resistant, drop-proof, and improved grip comfort. The positioning base 201 serves as the base for the entire glass bottle body 1, providing a stable foundation. By integrating the positioning base 201 with the bottom 214 of the silicone layer 203, problems such as low precision during molding and unstable positioning or uneven coating during silicone application are eliminated. The positioning base 201 has a radial structure 204 that matches the shape of the bottle bottom 103. The bottle bottom 103 has inwardly recessed grooves 104, providing a stable mounting base for the radial structure 204 of the positioning base 201, preventing displacement and maintaining stability through integral molding with the bottom 214 of the silicone layer 203.

[0056] During production, the integral molding of the positioning base pad 201 and the bottom end 214 of the silicone layer 203 is achieved through a secondary injection molding process. The bottle bottom groove 104 ensures that the radial structure 204 of the positioning base pad 201 is tightly pressed into the bottle bottom groove 104 of the bottle bottom 103, preventing easy displacement. Since the radial structure 204 is made of silicone, it has a certain degree of elasticity. The elastic pressing method can eliminate the unavoidable shape errors of the glass bottle body 1 during production, achieving stable fixation and continuous positioning of the glass bottle body 1. When molding the silicone layer 203, the silicone solution is injected from the injection points on the positioning base pad 201, which are connected to the injection structure, into the various gaps within the radial structure 204. The radial structure 204 ensures that the silicone solution can evenly and smoothly fill the molding cavity of the silicone layer 203 from the center outwards during injection. While fixing the glass bottle body 1, the bottom end 214 of the silicone layer 203 and the positioning base pad 201 are integrally formed into a complete whole, which cannot be separated non-destructively, thus preventing the risk of the silicone layer 203 detaching from the bottle bottom 103.

[0057] The radial structure 204 extends radially from the inner side of the positioning base pad 201 to the outer edge. The center point of the radial structure is mainly determined by the position of the injection port during the production process, and can be located at the center point of the positioning base pad 201 or other offset points. The radial structure 204 is formed by multiple protruding ridges, which can be straight, wavy, arrow-shaped, continuous or discontinuous, or of varying lengths, and are arranged in a radial pattern. Furthermore, the sidewalls of the protruding ridges can also have grooves to improve the bonding strength. The silicone solution enters between the radial structure 204 and the bottle bottom 103 along the center point, flows along the gap between the radial structures 204 to the outer edge of the positioning base pad 201, and flows out into the molding cavity. The silicone layer 203 is diverted under the guidance of the radial structure 204, and can also be wrapped on the outer wall of the bottle bottom 103, so that the parts of the glass bottle body 1, such as the bottle body 101 and the bottle bottom 103, that need to be covered can be completely covered with silicone. The silicone material has a good coefficient of friction, which significantly improves the anti-slip performance of the glass bottle body 1, and at the same time gives the glass bottle body 1 a certain heat preservation function and anti-drop and anti-splash function.

[0058] A limiting ring 202 is fitted below the bottle opening 102, specifically serving as a stop and limit for the molding of the silicone layer 203, ensuring that the molding position of the top 215 of the silicone layer 203 does not exceed the limiting ring 202. The limiting ring 202 and the silicone layer 203 are also integrally molded into a single unit through a secondary molding process, making them impossible to separate without damage. The limiting ring 202 and the positioning base 201 together form a double-fixed structure for the silicone coating layer, creating a complete silicone coating structure that ultimately achieves a tight, stable, and durable coating effect between the silicone layer 203 and the glass bottle body 1.

[0059] In some embodiments, such as Figure 1 , 3 As shown in Figure 4, the radial structure 204 includes a through hole 205 disposed at the center of the positioning base pad 201 and penetrating the positioning base pad 201, and a plurality of first protruding ribs 206 extending from the edge side of the through hole 205 to the outer edge side of the positioning base pad 201. The first protruding ribs 206 are arranged radially at intervals, and a protruding groove 207 is formed between two adjacent first protruding ribs 206.

[0060] The through-hole 205 provides an inlet between the radial structure 204 and the bottle bottom 103 for injecting the silicone solution. The through-hole 205 is the center point of the radial structure 204, and its placement at the center of the positioning base 201 ensures that the silicone solution injected into each of the raised grooves 207 reaches the edge of the positioning base 201 in approximately equal time. Multiple spaced-apart first raised ribs 206 form multiple raised grooves 207, providing a guiding path for the flow of the silicone solution. This allows the silicone solution to flow evenly from the center point of the through-hole 205 along the raised grooves 207 to the outer edge of the positioning base 201, and then into the molding cavity to form a uniform silicone layer 203.

[0061] In this embodiment, the first convex rib 206 is a straight convex rib extending from one side of the edge of the through hole 205 to the outer edge of the positioning base pad 201. One end of the rib is located near the through hole 205 and does not protrude inward onto the through hole 205, while the other end is flush with the outer edge of the positioning base pad 201. Both ends have rounded corners. Of course, the two ends of the first convex rib 206 can also be spaced a certain distance from the edge of the through hole 205 or the outer edge of the positioning base pad 201. The setting of the first convex rib 206 allows the silica gel solution to be better dispersed and filled radially in the convex groove 207 during the flow process. The top of the first convex rib 206 fits into the bottle bottom groove 104, so that the bottom end 214 of the silica gel layer 203 can be integrally formed with the radial structure 204 and also formed on the bottle bottom 103, further improving the bonding strength of the silica gel layer 203, the positioning base pad 201 and the bottle bottom 103, and enhancing the stability and reliability of the overall structure.

[0062] Furthermore, such as Figure 3 As shown, the radial structure 204 also includes one or more second convex ribs 208 disposed between two adjacent first convex ribs 206. The second convex ribs 208 are radially distributed outward from the center point of the positioning base pad 201. The length of the first convex rib 206 is greater than the length of the second convex rib 208.

[0063] Since the first convex rib 206 is radially arranged, and the convex groove 207 is narrow on the inside and wide on the outside, it means that the outer part of the convex groove 207 is wider, making it difficult for the silica gel solution to be well guided by the first convex rib 206. The second convex rib 208 is set in this section, which can better guide the uniform flow of the silica gel solution in the latter half of the convex groove 207. The second convex rib 208 is also a radially arranged straight convex rib. In this embodiment, the outer ends of the first convex rib 206 and the second convex rib 208 are flush with the outer edge of the positioning base pad 201. The end of the second convex rib 208 near the through hole 205 is set at one-half to two-thirds of the distance from the outside to the inside of the first convex rib 206; of course, the outer end of the second convex rib 208 may not be flush with the first convex rib 206. The second convex rib 208 is mainly used to further cut and divert the flow of the convex groove 207, forming a finer groove after cutting, further refining the guidance of the silica gel solution flow. The second convex rib 208 can be straight, wavy, or grooved. In this embodiment, there are two second convex ribs 208, and the rear convex groove 207 is cut into three grooves. The second convex rib 208 should avoid being placed at the center between two adjacent first convex ribs 206, so that the central groove can connect the through hole 205 and the positioning base pad 201 in a straight line, optimizing the flow channel of the silicone solution and facilitating the silicone solution to flow directly from the through hole 205 to the outside of the positioning base pad 201.

[0064] In some embodiments, such as Figures 1-3 As shown, a plurality of protrusions 105 are provided at the outer edge of the bottle bottom groove 104, and a first groove 209 matching the shape of the protrusions 105 is provided on the radial structure 204.

[0065] The cooperation between the protrusion 105 and the first groove 209 can improve the positioning accuracy of the positioning pad 201 and the bottom of the glass bottle 103, further tighten the fit, and effectively prevent the positioning pad 201 from shifting or moving during use. At the same time, the protrusion 105 can also provide a more stable foundation for the subsequent silicone layer 203 to be coated and molded.

[0066] In some embodiments, such as Figure 1 , 2 As shown in Figure 5, the limiting ring 202 includes an elastic annular portion 210 that fits against the outer wall of the bottle mouth 102 and a limiting portion 211 that protrudes radially outward along the upper edge of the annular portion 210. A second groove 212 is provided at the bottle mouth 102, and the limiting ring 202 is embedded in the second groove 212. The top end 215 of the silicone layer 203 abuts against the limiting portion 211.

[0067] The limiting ring 202 is also made of silicone and is entirely elastic. The diameter of the annular portion 210 is smaller than the diameter of the bottle mouth 102. During processing, the limiting ring 202 is elastically stretched to fit into and be fixed within the second groove 212. The elastic force ensures a tight fit between the limiting ring 202 and the bottle mouth 102. The second groove 212 limits the position of the top 215 of the silicone layer 203, preventing silicone solution from flowing from the inside of the annular portion 210 to the bottle mouth 102 during molding, while also ensuring the secure installation of the limiting ring 202 at the bottle mouth 102. In practice, the molding structure of the mold for molding the silicone layer 203 abuts against the limiting part 211 when the mold is closed. By elastically pressing the limiting part 211, the limiting part 211 acts as a sealing ring or edge sealing, limiting the top end 215 of the silicone layer 203 to not exceed the bottom of the limiting part 211. This makes the limiting ring 202 and the top end 215 of the silicone layer 203 integrally molded into a complete whole, which cannot be separated non-destructively.

[0068] Furthermore, such as Figures 5-6 As shown, the inner and / or outer walls of the annular portion 210 are provided with a plurality of anchoring structures 213, which are used to increase the connection strength between the annular portion 210 and the silicone layer 203.

[0069] Specifically, the anchoring structure 213 can be a protruding anchor or a concave anchor. A protruding anchor, such as an outward-protruding structure on the outer wall of the annular portion 210 (not shown in the diagram), can be spaced out or in sheets. The protruding structure can be L-shaped, square, or similar in shape. The silicone layer 203 can wrap around the hook-shaped structure during molding, improving the connection strength after molding. A concave anchor can be an upward-opening injection groove 216 on the inner and / or outer wall of the annular portion 210. The shape of the injection groove 216 is not limited; it can be square, trapezoidal, U-shaped, etc., and can be spaced out or dispersed. For example, in this embodiment, the anchoring structure 213 is a spaced-out U-shaped groove on the inner side of the annular portion 210. To ensure that the silicone layer 203 is partially injected into the injection groove 216 during molding, while the remaining portion continues to wrap around the outer side of the annular portion 210, the connection strength after molding is improved. The two anchoring structures 213 can be set separately or simultaneously, which improves the connection strength and tightness between the top 215 of the silicone layer 203 and the annular part 210, effectively preventing the silicone layer 203 from loosening or falling off during use, and enhancing the overall protective performance and service life of the glass bottle.

[0070] A second aspect of the present invention provides a silicone overmolding mold for molding a glass bottle coated with silicone, such as... Figures 7-14 As shown, it includes:

[0071] The upper template 301, the lower template 302, and at least two slider structures 303 disposed on the lower template 302 that can move closer or further apart from each other. Each slider structure 303 is used to clamp the glass bottle body 1 together. The inner side of the slider structure 303 is provided with a molding groove 304 for molding the silicone layer 203.

[0072] The bottle positioning assembly includes a lower fixing structure 305 disposed on the lower template 302 and an upper fixing structure 306 disposed at the bottom of the upper template 301. The lower fixing structure 305 is used to fix the bottle mouth 102, and the upper fixing structure 306 is used to press the positioning base pad 201 downward onto the bottle bottom 103. The top end of the forming groove 304 can abut against the positioning base pad 201 or the upper fixing structure 306, and the bottom end of the forming groove 304 can abut against the limiting ring 202.

[0073] The gating system includes a gating channel 307 disposed within the upper fixed structure 306 and connected to the radial structure 204. The injected liquid can enter the radial structure 204 along the gating channel 307 and then disperse along the radial structure 204 into the molding cavity for molding the silicone layer 203.

[0074] The upper template 301 can move vertically upwards and downwards relative to the lower template 302, so that the upper fixing structure 306 presses the positioning pad 201 on the bottle bottom 103 downwards. At least two slider structures 303 that can move closer or further apart can jointly clamp the glass bottle body 1 with the bottle mouth 102 facing downwards. The molding groove 304 on its inner side is used to cooperate with the outer wall of the glass bottle body 1 to form the silicone layer 203 covering the outer side of the glass bottle body 1. The bottom end of the molding groove 304 abuts against the limiting ring 202 when the mold is closed. The molding groove 304, the glass bottle body 1, and the limiting ring 202 form the side and bottom of the molding cavity of the silicone layer 203. The top of the molding cavity can be closed by the positioning pad 201, or it can be closed by the positioning pad 201 and the upper fixing structure 306 together, forming a complete silicone layer 203 molding cavity.

[0075] The bottle positioning component is designed to ensure a more uniform coating of the silicone layer 203 and better control over its thickness. The glass bottle body 1 is fixed with the bottle opening 102 facing downwards during injection, preventing the bottle bottom 103 from floating during injection. With the bottle opening 102 facing downwards, gravity allows the silicone solution to coat the bottle body 101. Since both the bottle body 101 and the bottle bottom 103 need to be coated with the silicone layer 203, while the bottle opening 102 has threads or other connecting structures and does not require a silicone layer 203 coating, this part can be directly fixed and positioned by the lower fixing structure 305. The lower fixing structure 305 can be a clamping structure, a locking groove, or other structure used to place and position the bottle opening 102, thus achieving overall positioning of the glass bottle body 1 before mold closing. The slider structure 303 can clamp the glass bottle body 1 together, further fixing the glass bottle structure. The bottom end of the forming groove 304 abuts against the limiting ring 202, thus limiting the position of the top end 215 of the silicone layer 203. During forming, it cannot exceed the limiting ring 202, maintaining the consistency of the forming of the top end 215 of the silicone layer 203. The top end of the forming groove 304 can abut against the positioning base pad 201 or the upper fixing structure 306 to limit the forming position of the bottom end 214 of the silicone layer 203, ensuring that the bottom of the positioning base pad 201 is the bottom of the glass bottle, improving product quality.

[0076] The casting channel 307 is disposed within the upper fixing structure 306. While the upper fixing structure 306 presses down on the positioning base pad 201, the casting port of the casting channel 307 connects to the center point of the radial structure 204, enabling the injection of silicone solution. As described in claim 2, the center point of the radial structure 204 is located at the center of the positioning base pad 201, and the casting port of the casting channel 307 is positioned at the corresponding center point. When pressed downwards, it can partially extend into the through hole 205, facilitating the injection of silicone solution. The silicone solution is injected through the casting channel 307 along the through hole 205 into the raised ridge groove 207, and is divided by the raised ridges, causing it to flow dispersed along the radially arranged raised ridge groove 207, finally flowing out from the outer edge of the positioning base pad 201 into the molding cavity. The radial structure 204 of the pouring channel 307, in conjunction with the positioning base pad 201, allows the upper fixing structure 306 to press the glass bottle body 1 downwards by clamping the positioning base pad 201. This, combined with the lower fixing structure 305, ensures mutual fixation without affecting the molding of the silicone layer 203. Furthermore, it allows for the integral molding of the bottom end 214 of the silicone layer 203 with the radial structure 204. The positioning base pad 201, made of silicone, undergoes elastic deformation under pressure, eliminating the different precision errors generated during the molding of each glass bottle body 1, achieving stable fixation without affecting the injection molding process. Due to the presence of the positioning base pad 201, the lower fixing structure 305 only needs to provide positioning and limiting effects; the overall stable fixation of the glass bottle can be achieved by the downward pressure of the upper fixing structure.

[0077] Furthermore, such as Figures 8-10As shown, the upper fixing structure 306 is a protruding block that is wider at the top and narrower at the bottom. The diameter of the lower end face of the upper fixing structure 306 is larger than the diameter of the positioning base pad 201. The slider structure 303 includes a first slider 308 and a second slider 309 arranged opposite to each other, and a guide structure 310 for guiding the first slider 308 and the second slider 309 to move closer or further apart. The first slider 308 and the second slider 309 are both provided with an arc-shaped groove 311 that matches the side shape of the upper fixing structure 306 on the side near the upper fixing structure 306.

[0078] The upper fixing structure 306 is a protruding block that is wider at the top and narrower at the bottom. Specifically, it can be a frustum-shaped or trapezoidal structure, etc. The diameter of its lower end face is larger than the diameter of the positioning base pad 201, so that the upper fixing structure 306 can better cover the positioning base pad 201 and press it down, ensuring that uniform pressure is applied to the positioning base pad 201 as a whole during the molding process. Furthermore, the lower end face of the upper fixing structure 306 also has a groove that matches the positioning base pad 201, which facilitates positioning when pressing down. The first slider 308 and the second slider 309, which are arranged opposite each other, each form half of the silicone layer 203, which is suitable for bottles with a left-right symmetrical arrangement such as round or square shapes. The structure is simple and reduces costs. The first slider 308 and the second slider 309 both have an arc-shaped groove 311 on the side of the upper fixing structure 306 that matches the side of the upper fixing structure 306, so that the slider can fit tightly against the side of the upper fixing structure 306 when the mold is closed. During mold closing, the first slider 308 and the second slider 309 approach each other along the guide structure 310 and abut against each other. The upper template 301 drives the upper fixing structure 306 downward and presses it against the top surface of the positioning base pad 201. At this time, the upper fixing structure 306, the slider structure 303, the glass bottle body 1, the positioning base pad 201, and the limiting ring 202 together form a molding cavity for molding the silicone layer 203, which improves the stability and reliability of the entire mold.

[0079] The guide structure 310 is mainly designed to guide the first slider 308 and the second slider 309 to move closer or further apart along a specific trajectory during mold closing and opening. This includes a drive structure 314 that moves the first slider 308 and the second slider 309 closer and further apart, such as... Figure 9 As shown, in this embodiment, the driving structure 314 is a shovel base disposed at the bottom of the upper mold plate 301. The bottom of the shovel base has an inclined surface 315. The first slider 308 or the second slider 309 has another inclined surface 316 on the opposite side of the forming groove 304 that matches the inclined surface 315. When the upper mold plate 301 is pressed down to close the mold, the first slider 308 and the second slider 309 are pressed down by their respective shovel bases and move closer together under the cooperative drive of the inclined surface 315 and the other inclined surface 316. Moving away from each other can be achieved by other structures such as pull blocks or driving rods. The guide structure 310 may also include, for example, Figure 11The guide groove 317 shown is provided on the lower template 302 along the direction of relative proximity and relative distance between the sliders. The bottom of the first slider 308 and the second slider 309 both have guide blocks 318 that match the guide groove 317, which move relatively closer or further away from each other along the guide groove 317 during mold closing and mold opening.

[0080] Furthermore, such as Figure 7 , 11 As shown, the gating system also has an venting structure, such as an venting groove on the surface where the first slider 308 and the second slider 309 abut. When the mold is closed, the venting grooves of the first slider 308 and the second slider 309 combine to form a complete venting groove structure. The venting groove includes an arc-shaped venting groove 319 set along the side edge of the molding groove 304. The arc-shaped venting groove 319 can be connected to the molding cavity through gaps at the top and bottom, so that when the silicone solution enters the molding cavity, trapped air can be discharged into the arc-shaped venting groove 319 on one side along the gaps at the top and bottom. Then, the arc-shaped venting groove 319 is connected to multiple transverse venting grooves 320 in a transverse manner. The transverse venting grooves 320 exhaust air to the outside of the slider structure 303, realizing the venting function of the molding cavity.

[0081] Furthermore, such as Figure 10 As shown, the lower fixing structure 305 includes a positioning protrusion 312 that matches the shape of the inner side of the bottle mouth 102 and an annular positioning groove 313 that surrounds the outer periphery of the positioning protrusion 312. The annular positioning groove 313 is used to fix the bottle mouth 102, and the positioning protrusion 312 is used to be inserted into the bottle mouth 102 to achieve radial positioning of the glass bottle body 1.

[0082] The positioning protrusion 312 matches the inner shape of the bottle mouth 102, allowing for precise insertion into the bottle mouth 102 and radial positioning of the glass bottle body 1 from the inside, ensuring that the glass bottle does not shift during the molding process. Simultaneously, the annular positioning groove 313 surrounds the outer periphery of the positioning protrusion 312, further fixing and positioning the bottle mouth 102, providing stable support for the glass bottle body 1 and preventing the glass bottle from shaking or shifting due to external forces during molding. This dual positioning design improves the stability of the glass bottle body 1 in the mold, thereby enhancing the overall quality and molding accuracy of the product.

[0083] Furthermore, such as Figures 12-14As shown, the bottle positioning assembly also includes an inner clamping structure 4 disposed on the lower template 302. The inner clamping structure 4 includes multiple first swing rods 401 passing through the positioning protrusion 312 from bottom to top, a second swing rod 402 connected to the bottom end of the first swing rod 401, a rotating structure 403 disposed at the connection between the first swing rod 401 and the second swing rod 402, and a pressing structure 404 disposed at the end of the second swing rod 402. Each first swing rod 401 can rotate and abut against and be fixed to the inner side wall of the bottle body 101. When the slider structure 303 closes the mold, it can press the pressing structure 404 so that the second swing rod 402 drives the first swing rod 401 to rotate through the rotating structure 403.

[0084] When the end of the second swing rod 402 is pushed by the pressing structure 404, the first swing rod 401 and the second swing rod 402 can swing flexibly around the rotating structure 403 as a fulcrum, so that the first swing rod 401 can abut against the inner wall of the glass bottle body 1. The pressing structure 404 is used to press the second swing rod 402 downward. Its structure can be an additional push rod, a top block, or a structure fixed on the second swing rod 402, and is driven by the slider structure 303. In this embodiment, the pressing structure 404 is a third swing rod 405 vertically arranged at the end of the second swing rod 402. The top end of the third swing rod 405 extends upward to the upper surface of the lower template 302, so that the bottom of the slider structure 303 can directly abut against the top end of the third swing rod 405 and press down when the mold is closed, thereby pushing the second swing rod 402 downward. The first swing rod 401 rotates around the rotating structure 403 as a fulcrum to realize the clamping action of the top end abutting. The third swing arm 405 can be directly fixed to the end of the second swing arm 402, or it can be connected to the end of the second swing arm 402 by a hinge. The first swing arm 401 and the second swing arm 402 have an included angle. In this embodiment, the first swing arm 401 and the second swing arm 402 adopt an L-shaped shape with a 90° included angle. The rotating structure 403 is located at their connection point, and together with the third swing arm 405, they form a J-shaped shape. The horizontal and vertical structure facilitates processing and also facilitates the deduction of the rotation path, providing a clear force transmission path and ensuring the efficiency and reliability of the clamping action.

[0085] Furthermore, such as Figure 13 As shown, the bottom of the slider structure 303 has a guide groove 406 for guiding the third swing rod 405 to gradually press down. The guide groove 406 gradually slopes upward along the mold closing direction of the slider structure 303. This guides the third swing rod 405 of the pressing structure 404 to gradually press down during mold closing, making the clamping action smoother and more gradual, and avoiding the impact and damage that may be caused by instantaneous force application.

[0086] Furthermore, the pressing structure 404 has an elastic structure 407 for resetting on the other side of the second swing rod 402 opposite to the third swing rod 405. One end of the elastic structure 407 abuts against the bottom of the second swing rod 402, and the other end abuts against the bottom of the groove inside the lower template 302 that is easily used to accommodate the second swing rod 402. The elastic structure 407 can provide a reliable resetting force for the inner clamping structure 4, ensuring that when the slider structure 303 opens the mold, the bottom of the second swing rod 402 can be lifted simultaneously, so that the end of the first swing rod 401 can quickly and smoothly detach from the inner wall of the glass bottle body 1 and return to the initial position, facilitating the demolding of the glass bottle body 1.

[0087] Furthermore, a roller 408 is vertically provided at the end of the first swing rod 401, and the roller 408 is fixed to the top of the first swing rod 401. The roller 408 can rotate freely around the roller, so that the contact mode with the inner wall of the glass bottle body 1 changes from sliding friction to rolling friction, which greatly reduces friction, reduces wear and scratches, and improves the smoothness and stability of the clamping action.

[0088] A third aspect of the present invention provides a processing method using a silicone overmolding mold, comprising the following steps:

[0089] S1: Stretch and fit the silicone limiting ring 202 onto the outside of the bottle mouth 102; pre-form multiple silicone limiting rings 202 by molding to improve production efficiency. The diameter of the limiting ring is smaller than the diameter of the bottle mouth 102. Utilizing the elasticity of silicone, stretch the limiting ring 202 and fit it into the structure of the bottle mouth 102, such as the second groove 212. The limiting ring 202 shrinks to improve the fit and limit the position for subsequent one-time molding with the silicone layer 203.

[0090] S2: Fix the bottle opening 102 to the lower fixing structure 305 with the opening facing downwards; since the bottle opening 102 is not covered with silicone, it can be directly contacted and fixed by the lower fixing structure 305 without affecting the covering. With its opening facing downwards, gravity can be used to make the silicone solution flow evenly downwards along the edge of the radial structure to the limiting ring 202, thereby improving the molding speed.

[0091] S3: Place the silicone positioning pad 201 on the bottle bottom 103; the silicone positioning pad 201 is pre-formed to improve production efficiency. The positioning pad 201 is used to press and fix the glass bottle. The silicone material is elastic, and it can prevent the glass from being crushed by the mold while pressing down. The mold pressing pressure adjustment range is increased, making it easier to operate and reducing defective products.

[0092] S4: Mold closing. The upper template 301 moves the upper fixed structure 306 downward, simultaneously causing the slider structures 303 to approach and abut against each other. The pouring channel 307 is inserted into the radial structure 204. The upper fixed structure 306 presses the positioning pad 201 downward onto the bottle bottom 103 and presses the bottle mouth 102 downward onto the lower fixed structure 305. The top end of the forming groove 304 of the slider structure 303 clamps the positioning pad 201 or the upper fixed structure 306, and the bottom end of the forming groove 304 of the slider structure 303 clamps the limiting ring 202. The mold closing operation is simple. The downward pressing of the upper template 301 can simultaneously close multiple structures. The bottom end of the forming groove 301 clamps the limiting ring 202, thus limiting the end of the forming cavity. The top clamping of the positioning pad 201 or the upper fixed structure 306 limits the top of the forming cavity. The silicone limiting ring 202 acts as a sealing ring. It is elastic when clamped, preventing the glass from being crushed by the mold. It also prevents the silicone solution from flowing through the limiting ring 202 to the bottle mouth 102, thus improving product quality.

[0093] S5: The silicone raw material is put into the injection molding machine and melted into a molten state; the silicone is injected into the molding cavity in a molten state at an appropriate temperature.

[0094] S6: Molten silicone solution is injected into the radial structure 204 along the pouring channel 307. The silicone solution enters the molding cavity along the radial structure 204 and flows downward to one side of the limiting ring 202. The silicone solution passes through the pouring channel 307 to achieve integral molding on the inner side, over the bottom of the positioning base pad 201. The silicone solution is guided and dispersed from the center point of the radial structure 201 along the groove to the edge of the positioning base pad 201, achieving integral molding with the radial structure 201 and tightly covering the bottle bottom 103 without affecting the coating molding effect.

[0095] S7: Heat the mold to vulcanize the silicone solution; the vulcanization process sets the silicone solution and forms a stable coating structure.

[0096] S8: The mold opens, the upper template 301 moves upward, the slider structure 303 slides away from each other, and the glass bottle covered with silicone is taken out.

[0097] The terms and words used in the foregoing description and claims are not limited to their literal meaning, but are merely used by the applicant to enable a clear and consistent understanding of the invention. Therefore, those skilled in the art will understand that the foregoing description of various embodiments of the invention is illustrative only and not intended to limit the invention as defined by the appended claims and their equivalents.

Claims

1. A glass bottle with an outer silicone coating, characterized in that, include: The glass bottle body (1) includes a bottle body (101), a bottle mouth (102) and a bottle bottom (103), wherein the bottle bottom (103) has an inwardly recessed bottle bottom groove (104). The silicone-coated structure includes a positioning pad (201) fitted to the bottom of the bottle bottom (103), a limiting ring (202) fitted below the bottle mouth (102), and a silicone layer (203) disposed between the positioning pad (201) and the limiting ring (202). The silicone layer (203) covers the outer wall of the glass bottle body (1). The positioning pad (201) has a radial structure (204) matching the shape of the bottle bottom (103) on the side near the bottle bottom (103). The radial structure (204) extends radially from the inner side of the positioning pad (201) to the outer edge. The bottom end (214) of the silicone layer (203) is integrally formed with the radial structure (204), and the top end (215) of the silicone layer (203) is integrally formed with the limiting ring (202).

2. The glass bottle with silicone coating according to claim 1, characterized in that: The radial structure (204) includes a through hole (205) disposed at the center of the positioning base (201) and penetrating the positioning base (201), and a plurality of first protruding ribs (206) extending from the edge side of the through hole (205) to the outer edge side of the positioning base (201). Each of the first protruding ribs (206) is arranged radially at intervals, and a protruding groove (207) is formed between two adjacent first protruding ribs (206).

3. A glass bottle with an outer silicone coating according to claim 2, characterized in that: The radial structure (204) further includes one or more second convex strips (208) disposed between two adjacent first convex strips (206). The second convex strips (208) are radially distributed outward from the center point of the positioning base pad (201). The length of the first convex strip (206) is greater than the length of the second convex strip (208).

4. A glass bottle with an outer silicone coating according to any one of claims 1-3, characterized in that: The limiting ring (202) includes an elastic annular portion (210) that fits against the outer wall of the bottle mouth (102) and a limiting portion (211) that protrudes radially outward along the upper edge of the annular portion (210). A second groove (212) is provided at the bottle mouth (102). The limiting ring (202) is embedded in the second groove (212). The top end (215) of the silicone layer (203) abuts against the limiting portion (211).

5. A glass bottle with an outer silicone coating according to claim 4, characterized in that: The annular portion (210) has a plurality of anchoring structures (213) on its inner and / or outer side walls, the anchoring structures (213) being used to increase the connection strength between the annular portion (210) and the silicone layer (203).

6. A silicone coating molding mold for molding a glass bottle with an outer silicone coating as described in any one of claims 1-5, characterized in that, include: The upper template (301), the lower template (302), and at least two slider structures (303) disposed on the lower template (302) that can move closer or further apart from each other. Each slider structure (303) is used to clamp the glass bottle body (1) together. The inner side of the slider structure (303) is provided with a molding groove (304) for molding the silicone layer (203). The bottle positioning assembly includes a lower fixing structure (305) disposed on the lower template (302) and an upper fixing structure (306) disposed at the bottom of the upper template (301). The lower fixing structure (305) is used to fix the bottle mouth (102), and the upper fixing structure (306) is used to press the positioning pad (201) downward onto the bottle bottom (103). The top end of the forming groove (304) can abut against the positioning pad (201) or the upper fixing structure (306), and the bottom end of the forming groove (304) can abut against the limiting ring (202). The gating system includes a gating channel (307) disposed within the upper fixed structure (306) and connected to the radial structure (204), wherein the injection liquid can enter the radial structure (204) along the gating channel (307) and then disperse along the radial structure (204) into the molding cavity for molding the silicone layer (203).

7. The silicone overmolding mold according to claim 6, characterized in that: The upper fixing structure (306) is a protruding block that is wider at the top and narrower at the bottom. The diameter of the lower end face of the upper fixing structure (306) is larger than the diameter of the positioning base pad (201). The slider structure (303) includes a first slider (308) and a second slider (309) arranged opposite to each other, and a guide structure (310) for guiding the first slider (308) and the second slider (309) to move closer or further apart. The first slider (308) and the second slider (309) are both provided with an arc-shaped groove (311) on the side of the upper fixing structure (306) that matches the side shape of the upper fixing structure (306).

8. The silicone overmolding mold according to claim 6, characterized in that: The lower fixing structure (305) includes a positioning protrusion (312) that matches the shape of the inner side of the bottle mouth (102) and an annular positioning groove (313) arranged around the outer periphery of the positioning protrusion (312). The annular positioning groove (313) is used to fix the bottle mouth (102), and the positioning protrusion (312) is used to be inserted into the bottle mouth (102) to achieve radial positioning of the glass bottle body (1).

9. The silicone overmolding mold according to claim 8, characterized in that: The bottle positioning assembly further includes an inner clamping structure (4) disposed on the lower template (302). The inner clamping structure (4) includes a plurality of first swing rods (401) passing through the positioning protrusion (312) from bottom to top, a second swing rod (402) connected to the bottom end of the first swing rod (401), a rotating structure (403) disposed at the connection between the first swing rod (401) and the second swing rod (402), and a pressing structure (404) disposed at the end of the second swing rod (402). Each of the first swing rods (401) can rotate and abut against and be fixed to the inner sidewall of the bottle body (101). When the slider structure (303) closes the mold, it can press the pressing structure (404) so ​​that the second swing rod (402) drives the first swing rod (401) to rotate through the rotating structure (403).

10. A processing method using a silicone overmolding mold as described in any one of claims 6-9, characterized in that, Includes the following steps: S1: Stretch the silicone limiting ring (202) and fit it on the outside of the bottle mouth (102); S2: Fix the bottle mouth (102) with its opening facing downwards onto the lower fixing structure (305); S3: Place the silicone positioning pad (201) on the bottom of the bottle (103); S4: The mold is closed. The upper template (301) drives the upper fixed structure (306) to move downward, and at the same time drives each of the slider structures (303) to move closer and abut against each other. The pouring channel (307) is inserted into the radial structure (204). The upper fixed structure (306) presses the positioning pad (201) downward onto the bottle bottom (103) and presses the bottle mouth (102) downward onto the lower fixed structure (305). The top end of the forming groove (304) of the slider structure (303) clamps the positioning pad (201) or the upper fixed structure (306), and the bottom end of the forming groove (304) of the slider structure (303) clamps the limiting ring (202). S5: Add the silicone raw material to the injection molding machine and melt it into a molten state; S6: Molten silicone solution is injected into the radial structure (204) along the pouring channel (307). The silicone solution enters the molding cavity along the radial structure (204) and flows downward to the side of the limiting ring (202). S7: Heat the mold to vulcanize the silicone solution; S8: The mold is opened, the upper template (301) moves upward, the slider structure (303) slides away from each other, and the glass bottle covered with silicone is taken out.

Images