PROCESSING METHOD FOR COATING GLASS CONTAINER WITH SILICONE RUBBER AND GLASS CONTAINER COATED WITH SILICONE RUBBER

Abstract

The present invention relates to a processing method for coating glass container with silicone rubber and a glass container coated with silicone rubber by the processing method. The processing method comprises: cleaning a glass container body and performing a first drying treatment; brushing or spraying a primer on a surface of a part of the glass container body, wherein the surface of the part of the glass container body is to be coated with silicone rubber; performing a second drying treatment on the glass container body, and then cooling the glass container body to a room temperature; putting the glass container body into a mold cavity of a mold, injecting the liquid silicone rubber into the mold cavity, and vulcanizing the liquid silicone rubber for 200 to 300 seconds; opening the mold and letting the mold sliding out, and taking out the glass container coated with the silicone rubber layer.

Claims

1. A processing method for coating glass container with silicone rubber, comprising the following steps: step 1: cleaning a glass container body and performing a first drying treatment; step 2: brushing or spraying a primer on a surface of a part of the glass container body, wherein the surface of the part of the glass container body is to be coated with silicone rubber; step 3: performing a second drying treatment on the glass container body, and then cooling the glass container body to a room temperature; step 4: putting the glass container body into a mold cavity of a mold, closing front and rear middle plates, moving a lower mold under a upper mold seat, closing the mold, using pressure to pass the liquid silicone rubber through a feeder to an injection machine, and passing through a gun barrel into the mold cavity, and vulcanizing the liquid silicone rubber for 200 to 300 seconds, such that the surface of the part of the glass container body to be coated with silicone rubber is coated with a silicone rubber layer; and step 5: opening the mold and letting the mold sliding out, and taking out the glass container coated with the silicone rubber layer.

2. The processing method according to claim 1, wherein a flexible protective cover made of heat-resistant material is sheathed on a mold core of the mold before the step 4.

3. The processing method according to claim 1, wherein a material of the liquid silicone rubber in the step 4 is A, B mixed liquid silicone rubber.

4. The processing method according to claim 1, wherein in the step 1, the first drying treatment is natural air drying, and in the step 3, the second drying treatment is baking the glass container body at a temperature of 50 to 200 degrees Celsius for 5 to 60 minutes.

5. The processing method according to claim 1, wherein in the step 2, a brush or a spray gun is used to brush or spray the primer on the surface of the part of the glass container body to be coated with silicone rubber.

6. The processing method according to claim 1, wherein in the step 4, a time for vulcanizing the liquid silicone rubber is 220 to 280 seconds.

7. A glass container coated with silicone rubber processed by the processing method according to claim 1, wherein a part or a designated position of the glass container body is coated with the silicone rubber layer (20), and the glass container body and the silicone rubber layer (20) are integrally formed.

8. The glass container coated with silicone rubber according to claim 7, wherein the glass container is a glass cup (1), a cup body (10) of the glass cup (1) being provided with an annular step (101) that defines a first part (103) of the cup body (10) of the glass cup (1) close to a rim (102) of the glass cup (1) and a second part (104) far from the rim (102) of the glass cup (1), a surface of the second part (104) being coated with the silicone rubber layer (20).

9. The glass container coated with silicone rubber according to claim 7, wherein the glass container is a glass bottle (2), a convex ring (212) near an opening (211) of the glass bottle (2) being provided on a bottle body (210) of the glass bottle (2), and a surface of a part of the bottle body (210) located at the lower side of the convex ring (212) being coated with the silicone rubber layer (20).

10. The glass container coated with silicone rubber according to claim 8, wherein a non-slip structure is formed on a surface of the silicone rubber layer (20).

11. The glass container coated with silicone rubber according to claim 9, wherein a non-slip structure is formed on a surface of the silicone rubber layer (20).

12. A glass container coated with silicone rubber processed by the processing method according to claim 2, wherein a part or a designated position of the glass container body is coated with the silicone rubber layer (20), and the glass container body and the silicone rubber layer (20) are integrally formed.

13. A glass container coated with silicone rubber processed by the processing method according to claim 3, wherein a part or a designated position of the glass container body is coated with the silicone rubber layer (20), and the glass container body and the silicone rubber layer (20) are integrally formed.

14. A glass container coated with silicone rubber processed by the processing method according to claim 4, wherein a part or a designated position of the glass container body is coated with the silicone rubber layer (20), and the glass container body and the silicone rubber layer (20) are integrally formed.

15. A glass container coated with silicone rubber processed by the processing method according to claim 5, wherein a part or a designated position of the glass container body is coated with the silicone rubber layer (20), and the glass container body and the silicone rubber layer (20) are integrally formed.

16. A glass container coated with silicone rubber processed by the processing method according to claim 6, wherein a part or a designated position of the glass container body is coated with the silicone rubber layer (20), and the glass container body and the silicone rubber layer (20) are integrally formed.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0029] FIG. 1 is a schematic structural view of a glass cup in embodiment 7 of the present invention.

[0030] FIG. 2 is schematic structural view of the glass cup in embodiment 7 of the present invention shown from another angle.

[0031] FIG. 3 is a cross-sectional view at A-A in FIG. 2.

[0032] FIG. 4 is an exploded schematic structural view of the glass cup in embodiment 7 of the present invention.

[0033] FIG. 5 is an exploded schematic structural view of the glass cup in embodiment 7 of the present invention shown from another angle.

[0034] FIG. 6 is a schematic structural view of a cup body of the glass cup in embodiment 7 of the present invention.

[0035] FIG. 7 is an enlarged schematic structural view of position B in FIG. 6.

[0036] FIG. 8 is a schematic structural view of a glass bottle in embodiment 8 of the present invention.

[0037] FIG. 9 is an exploded schematic structural view of the glass bottle in embodiment 8 of the present invention.

DESCRIPTION OF THE EMBODIMENTS

[0038] The accompanying drawings are only for exemplary description, and shall not be construed as limiting the present invention. For ease of description, some parts in the accompanying drawings may be omitted, scaled up or scaled down, which do not represent the practical dimensions of the product. For a person skilled in the art, it is understandable that some commonly known structures may be omitted in accompanying drawings and that their descriptions may be omitted. The positional relationship described in the accompanying drawings is for illustrative purposes only, and shall not be understood as limiting to the present invention.

Embodiment 1

[0039] A processing method for coating glass container with silicone rubber in the present embodiment comprises the following steps:

[0040] step (1): cleaning a glass container body with a cleaning agent and performing a first drying treatment;

[0041] step (2): brushing or spraying a primer on a surface of a part of the glass container body, wherein the surface of the part of the glass container body is to be coated with silicone rubber;

[0042] step (3): drying the glass container body, and then cooling the glass container body to a room temperature;

[0043] step (4): putting the glass container body into a mold cavity of a mold, closing front and rear middle plates, moving a lower mold under a upper mold seat, closing the mold, using pressure to pass the liquid silicone rubber through a feeder to an injection machine, and passing through a gun barrel into the mold cavity, and vulcanizing the liquid silicone rubber for 200 to 300 seconds, such that the surface of the part of the glass container body to be coated with silicone rubber is coated with a silicone rubber layer;

[0044] step (5): opening the mold and letting the mold sliding out, and taking out the glass container coated with the silicone rubber layer.

[0045] During actual production or processing of the glass container body, the glass container body may be contaminated with dust or oil. Therefore, it's necessary for the glass container body to be cleaned in step (1). In the present embodiment, household cleaning agents can be used to clean the glass container body, such that the injected silicone rubber can completely attached to the glass surface. Of course, in other embodiments, other manners can be used for cleaning as needed, for example, other cleaning agents are used for cleaning.

[0046] Reference to FIGS. 1-7, in this embodiment, the glass container is a glass cup 1, and the glass container body is the cup body 10 of the glass cup 1. The primer used in step (2) is Chongxin CX-609-13#, which can be brushed or sprayed on the surface of the glass container body to be coated with silicone rubber using a brush or spray gun. In the present embodiment, it is brushed or sprayed on the surface of the second part 104 of the cup body 10. In the present embodiment, the first drying treatment in step (1) is natural air drying. It is understood that in other embodiments, the first drying treatment can also be performed in other manners, such as placing the cup body 10 in an oven for drying.

[0047] In the present embodiment, step (1) specifically is to clean the cup body 10 of the glass cup 1 with household cleaning agents and let it air dry naturally for 5 minutes. Step (2) specifically is to use a brush to brush the primer of Chongxin CX-609-13# on the surface of the second part 104 of the cup body 10, and to bake the cup body 10 in an oven at a temperature of 50 degrees Celsius for 60 minutes. Then take it out, let it cool naturally to room temperature, and set it aside for use. In step (4), specifically, invert the cup body 10 of the glass cup brushed with the primer on a lower mold of a mold, activate a switch, close front and rear middle plates to wrap the cup body 10, move the lower mold under an upper mold seat, close the mold, use pressure to pass the liquid silicone rubber through a feeder to an injection machine, inject the liquid silicone rubber into the mold cavity through a gun barrel and vulcanize the liquid silicone rubber for 200 seconds. In step (5), open the mold, let the mold out sliding out, separate the middle plates, and take out the glass cup 1 coated with silicone rubber layer 20. Then the processing and forming of a product is completed. If the processing of other products needs to be continued, just proceed to the next cycle operation.

[0048] In the present embodiment, before the glass container body is put into the mold cavity of the mold, a silicone rubber cover is sheathed on a mold core of the mold. The processing equipment used in the present embodiment a vertical liquid silicone rubber injection molding machine. A material of the liquid silicone rubber is A, B mixed liquid silicone rubber. The cup body 10 of the glass cup is made of soda-lime glass. The molding temperature of the silicone rubber layer of the glass container is 80 degrees Celsius.

[0049] The processing equipment in the present embodiment, namely the vertical liquid silicone rubber injection molding machine, uses the following process parameters:

[0050] The clamping high pressure is 30-100 BAR, and the running speed is 10˜30%;

[0051] the set temperature of the upper mold is 100˜200 degrees Celsius, and the temperature of the upper mold is 100˜200 degrees Celsius;

[0052] the storage position is 30˜80 mm, the pressure is 30˜100 BAR, and the operating speed is 45%.

[0053] The injection pressure is divided into three sections:

[0054] The position of the first section is 25˜35 mm, the injection pressure is 10˜20 BAR, and the injection speed is 8˜20%;

[0055] the position of the second section is 20˜30 mm, the injection pressure is 8˜15 BAR, and the injection speed is 5˜15%;

[0056] the position of the third section is 15˜25 mm, the injection pressure is 5˜10 BAR, and the injection speed is 2˜8%.

[0057] The parameter values of the position of the first section are greater than those of the position of the second section, and the parameter values of the position of the second section are greater than those of the position of the third section.

Embodiment 2

[0058] The difference between the present embodiment and embodiment 1 lies only in the followings:

[0059] In step (1), the cup body 10 of the glass cup 1 is cleaned with household cleaning agents and air dried naturally for 60 minutes. In step (2), spray guns are used to spray the primer of Chongxin CX-609-13# on the surface of the second part 104 of the cup body 10 of the glass cup 1. The second drying treatment in step (3) is to put the glass container body in an oven and bake it at a temperature of 200 degrees Celsius for 5 minutes. In step (4), the time for vulcanizing the liquid silicone rubber is 300 seconds. The molding temperature of the silicone rubber layer of the glass container is 180 degrees Celsius.

Embodiment 3

[0060] The difference between the present embodiment and embodiment 1 lies only in the followings:

[0061] In step (1), the cup body 10 of the glass cup 1 is cleaned with household cleaning agents and air dried naturally for 30 minutes. The second drying treatment in step (3) is to put the glass container body in an oven and bake it at a temperature of 120 degrees Celsius for 12 minutes. In step (4), the time for vulcanizing the liquid silicone rubber is 220 seconds. The molding temperature of the silicone rubber layer of the glass container is 100 degrees Celsius.

Embodiment 4

[0062] The difference between the present embodiment and embodiment 1 lies only in the followings:

[0063] In step (4), the time for vulcanizing the liquid silicone rubber is 230 seconds.

Embodiment 5

[0064] The difference between the present embodiment and embodiment 1 lies only in the followings:

[0065] In step (4), the time for vulcanizing the liquid silicone rubber is 270 seconds. The molding temperature of the silicone rubber layer of the glass container is 150 degrees Celsius.

Embodiment 6

[0066] The difference between the present embodiment and embodiment 1 lies only in the followings:

[0067] In step (4), the time for vulcanizing the liquid silicone rubber is 240 seconds. The molding temperature of the silicone rubber layer of the glass container is 120 degrees Celsius.

Embodiment 7

[0068] As shown in FIGS. 1-3, a glass cup 1 coated with silicone rubber processed by the processing method in the above embodiments, wherein a part of the cup body 10 of the glass cup 1 is coated with a silicone rubber layer 20, and the cup body 10 and the silicone rubber layer 20 are integrally formed. Since the cup body 10 and the silicone rubber layer 20 are integrally formed, the silicone rubber 20 may be firmly attached to the surface of the cup body 10 without falling off. Since the silicone rubber layer 20 will not be separated from the cup body 10, the cleaning burden that the two are cleaned separately is reduced. The cup body 10 and the silicone rubber layer 20 in the present embodiment can be closely attached to each other, and there will be no gap between the two to trap dirt, which facilitates cleaning.

[0069] As shown in FIGS. 4-7 (in order to clearly show the structure of the glass cup 1, FIGS. 4 and 5 show the exploded structure of the glass cup 1. It should be understood that the cup body 10 and the silicone rubber layer 20 of the glass cup 1 in the present embodiment are actually tightly fitted with each other and inseparable), the cup body 10 of the glass cup 1 is provided with an annular step 101 that defines a first part 103 of the cup body 10 of the glass cup 1 close to a rim 102 of the glass cup 1 and a second part 104 far from the rim 102 of the glass cup 1. A surface of the second part 104 is coated with the silicone rubber layer 20. Since the second part 104 is coated with a silicone rubber layer 20, the second part has functions of scalding prevention and heat insulation, and is convenient to be held by users. The first part 103 of the cup body 10 close to the rim 102 of the glass cup 1 is not coated with the silicone rubber layer 20, such that the user can directly see the glass material of the cup body 10, which increases the ornamental value. And the mouth of the user can directly touch the glass at the rim 102 of the glass cup 1 when drinking, which has a good sense of touch and is more environmentally friendly. The upper edge of the silicone rubber layer 20 of the second part 104 fits with the annular step 101 to beautify the overall appearance of the glass cup 1. Non-slip ridges 201 are formed on the surface of the silicone rubber layer 20 coated on the second part 104. The non-slip ridges 201 help to increase the friction when the user holds the glass cup 1, effectively prevent slipping, and improves the user's experience. A pattern formed by the non-slip ridges 201 can beautify the appearance of the glass cup 1, realize the perfect combination of glass and silicone rubber, and bring good visual enjoyment to users.

Embodiment 8

[0070] As shown in FIGS. 8-9, a glass bottle 2 coated with silicone rubber processed by the processing method in the above embodiments, wherein a part of the bottle body 210 is coated with a silicone rubber layer 20 of the glass bottle 2. Since the bottle body 210 and the silicone rubber layer 20 are integrally formed, the silicone rubber 20 may be firmly attached to the surface of the bottle body 210 without falling off. Since the silicone rubber layer 20 will not be separated from the bottle body 210, the cleaning burden that the two are cleaned separately is reduced. The bottle body 210 and the silicone rubber layer 20 in the present embodiment can be closely attached to each other, and there will be no gap between the two to trap dirt, which facilitates cleaning. A convex ring 212 near an opening 211 of the glass bottle 2 is provided on the bottle body 210 of the glass bottle 2, and a surface of a part of the bottle body 210 located at the lower side of the convex ring 212 is coated with the silicone rubber layer 20.

[0071] Since the surface of the part of the bottle body 210 located at the lower side of the convex ring 212 is coated with a silicone rubber layer 20, it has scalding prevention and heat insulation and is convenient to be held by users. The surface of the convex ring 212 in the present embodiment is not coated with a silicone rubber layer, so that the user can directly see part of the glass of the glass bottle through the convex ring 212 made of glass material, keeping transparency of the glass. The silicone rubber layer below the convex ring 212 can present diversified colors, which increases the selectivity. And the mouth of the user can directly touch the glass at the opening 211 of the glass bottle 2 when drinking, which has a good sense of touch and is more environmentally friendly. At the same time, such design can overcome the defect of fouling which caused by complete coating of the silicone rubber layer 20 on the entire outer wall of the bottle body 210. The design is more hygienic and reduces the difficulty of cleaning. The thickness of the silicone rubber layer 20 is substantially consistent with the height of the convex ring 212 such that the silicone rubber layer 20 can be flush with the convex ring 212 to beautify the appearance.

[0072] Non-slip ridges 201 are formed on the surface of the silicone rubber layer 20. The non-slip ridges 201 help to increase the friction when the user holds the glass bottle 2, and help to effectively prevent slipping, and improve the user's experience. A pattern formed by the non-slip ridges 201 can beautify the appearance of the glass bottle 2, and bring good visual enjoyment to users.

[0073] The surface of the silicone rubber layer 20 is further provided with a scale 202 to facilitate the user measuring the liquid contained in the glass bottle 2.

[0074] The glass bottle 2 further includes a cap 220 that fits with the opening 211. The inner side of the cap 220 is further provided with a sealing member 221, and the sealing member 221 is a silicone rubber gasket. In the present embodiment, the inner side of the cap is provided with threads, the convex ring 212 is provided with male threads, and the cap 220 can be threadedly connected with the convex ring 212. When in use, the cap 220 is placed at the opening 211 to connect with the convex ring 212, and it can be tightly closed by rotating and tightening.

[0075] The above-mentioned embodiments are merely preferred embodiments the present invention, but the design concept of the present invention is not limited to these embodiments. Any insubstantial modification made to the present invention using this concept should be included in the protection scope of the present invention.