A mold assembly for rapid cooling of glass bottle mouth

Abstract

A mold assembly for rapid cooling of a glass bottle mouth comprises a mouth mold, a mouth ring and a primary mold, wherein a plurality of ventilation grooves penetrating the side surface are arranged on the side surface of each mouth mold half mold, and a plurality of first ventilation holes are arranged inside each mouth mold half mold; the mouth ring is in the shape of an annular boss, a first annular groove is arranged on the large end step of the annular boss, and a plurality of second ventilation holes distributed radially are arranged on the circumferential side surface of the large end step, one end of the second ventilation hole is connected with the ventilation groove on the mouth mold, and the other end extends to the side surface of the first annular groove, and at the same time, one end of the first ventilation hole on the mouth mold is located on the upper end surface of the mouth mold, and the other end extends downward and is connected with the first annular groove; a plurality of third ventilation holes are arranged on the side surface of the lower end of the primary mold, one end of the third ventilation hole is connected with the outside, and the other end is connected with the first ventilation hole on the mouth mold. The present invention greatly improves the cooling efficiency, reduces the thermal expansion deformation of the mouth mold mouth ring, improves the product quality and the life of the mold, and the overall structural layout is compact and reasonable.

Description

Technical Field

[0001] The invention relates to the technical field of forming molds, and in particular to a mold assembly for rapidly cooling a mouth of a glass bottle. Background Art

[0002] During the molding process of glass bottles, the molding of the bottle mouth is particularly important, which is directly related to the sealing and other properties of the glass bottle. Generally, the mouth mold needs to be used alone in combination with the primary mold to realize the molding of the bottle mouth. The rapid heat dissipation and cooling of the bottle mouth part and the mold part during the molding process are particularly critical. In the existing glass bottle molding technology, the mouth mold cooling method is generally to open a heat dissipation groove around the mouth mold (as described in patent number CN205803300U). The principle of the heat dissipation groove is to increase the air contact area to take away more heat, but because the mouth mold is wrapped by the primary mold, the air cannot circulate, so the cooling effect is not good. Especially for the single pressure method, due to the relatively long molding time, the mouth mold temperature is higher, and the thermal expansion deformation is greater, resulting in the mouth mold opening and closing is not smooth, the glass jar is difficult to demold, and it will also cause bottle mouth defects, such as bottle mouth deformation, large dimensional deviation, etc., which directly affect the final quality of the product and also affect the life of the mold. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art and provide a mold assembly for rapid cooling of the mouth of a glass bottle which has a reasonable structure, can improve the cooling efficiency of the mold and ensure the quality of the product, and is particularly suitable for use in the single-press molding of glass bottles and jars.

[0004] The present invention is achieved through the following technical solutions:

[0005] A mold assembly for rapid cooling of a glass bottle mouth, comprising a mouth mold, a mouth ring and a primary mold, wherein the mouth mold comprises two mouth mold halves that cooperate with each other, a side surface of each of the mouth mold halves is provided with a plurality of ventilation grooves that penetrate the side surface, and the interior of each mouth mold half is provided with a plurality of first ventilation holes; the mouth ring is assembled in an internal cavity formed by the two mouth mold halves, the mouth ring is in the shape of an annular boss, a step surface of a large end step of the annular boss is provided with a circle of first annular grooves with a central axis as an axis, the opening of the first annular groove is located on the step surface of the large end step, and the large end step of the annular boss is provided with a first annular groove having a central axis as an axis. A plurality of second ventilation holes are arranged on the circumferential side surface of the die in a radially radiating shape with the central axis as the axis, one end of the second ventilation hole is opposite to the position of the ventilation groove on the die, so that the second ventilation hole is connected to the ventilation groove, and the other end of the second ventilation hole extends to the side of the first annular groove and is connected to the first annular groove. At the same time, one end of the first ventilation hole on the die is located on the upper end surface of the die, and the other end extends downward through the die. When the die is matched with the mouth ring, the outlet end of the first ventilation hole is located at the top of the first annular groove and is connected to the first annular groove;

[0006] The primary mold includes two primary mold halves that match each other. After the two primary mold halves are molded together, their lower ends match the mold after the mold is closed. The mouth ring, the mold and the primary mold match to form a cavity for forming the mouth of the glass bottle. There are a number of third ventilation holes on the side of the lower end of the primary mold. One end of the third ventilation hole is connected to the outside, and the other end is connected to the first ventilation hole on the mold. In this way, the ventilation groove on the mold is connected to the second ventilation hole on the mouth ring, the second ventilation hole is connected to the first annular groove, the first annular groove is connected to the first ventilation hole on the mold, and the first ventilation hole is connected to the third ventilation hole on the primary mold.

[0007] A further improved technical solution is that after the mouth mold and the initial mold are matched, there is a ventilation gap between the upper end of the mouth mold and the lower end of the initial mold, one end of the first ventilation hole is connected to the ventilation gap, and the third ventilation hole is also connected to the ventilation gap, so that the first ventilation hole is connected to the third ventilation hole.

[0008] A further improved technical solution is that a plurality of strip grooves are arranged on the upper end surface of the mouth mold half mold and the primary mold, which are radially distributed with the central axis as the axis, one end of the strip groove is closed on the inner side of the mouth mold, and the other end extends to the outer edge of the upper end surface of the mouth mold and is open, the outer edge of the upper end surface of the mouth mold is opposite to the position of the third ventilation hole on the primary mold, so that the third ventilation hole can be connected with the strip groove, and one end of the first ventilation hole is arranged at the bottom of the strip groove and close to the inner side of the mouth mold. In this way, a gap is formed between the strip groove and the primary mold, and the gap can become a ventilation gap or a part of the ventilation gap. The structural design of the strip groove can be an implementation of the above-mentioned ventilation gap.

[0009] A further improved technical solution is that the upper end surface of the mouth mold half is arranged obliquely outward in the radial direction, and the ventilation gap includes the space formed between the inclined upper end surface of the mouth mold half and the primary mold. The space can become the ventilation gap or a part of the ventilation gap, and the structural design of the upper end surface being arranged obliquely can be another embodiment of the above-mentioned ventilation gap.

[0010] A further improved technical solution is that the lower end of the initial mold half that cooperates with the mouth mold is provided with an inner edge extending toward the center, the inner surface of the inner edge includes a first surface extending obliquely downward and inward, the outer surface of the inner edge includes a second surface open to the outside, the first surface is located in the ventilation gap, and a plurality of fourth ventilation holes are provided on the inner edge, one end of the fourth ventilation hole is provided on the first surface, and the other end is provided on the second surface.

[0011] A further improved technical solution is that a circle of second annular grooves with the central axis as the axis is provided on the circumferential side surface of the large end step of the annular boss of the mouth ring, the opening of the second annular groove faces outward and away from the central axis, one end of the second ventilation hole is provided at the bottom of the second annular groove, and the positions of the ventilation groove and the second annular groove on the mouth mold are opposite to each other, so that the second ventilation hole can be connected with the ventilation groove through the second annular groove, thereby avoiding the situation where some second ventilation holes and the ventilation grooves are misaligned, and the ventilation performance can be improved.

[0012] A further improved technical solution is that a first groove is provided on the inner side surface of the mouth mold half. After the two mouth mold halfs are closed, the two first grooves are pieced together to form a third annular groove that can be matched with the outer periphery of the large end step of the annular boss of the mouth ring. The mouth ring is assembled in the mouth mold by the cooperation between the outer periphery of its large end step and the third annular groove, and the ventilation groove is arranged in the third annular groove.

[0013] A further improved technical solution is that a second groove is provided on the inner side surface of the lower end of the initial mold half-mold. After the two initial mold half-molds are molded together, the two second grooves are pieced together to form a fourth annular groove. The upper end of the mouth mold half-mold that cooperates with the initial mold is provided with a convex edge extending outward. After the two mouth mold half-molds are molded together, the convex edge and the fourth annular groove are matched to assemble with the initial mold.

[0014] A further improved technical solution is that a plurality of strip grooves are arranged on the upper end surface of the mouth mold half mold, which are radially distributed with the central axis as the axis. One end of the strip groove is closed on the inner side of the mouth mold, and the other end extends to the edge of the convex edge on the mouth mold and is open. There is a gap between the edge of the convex edge and the fourth annular groove. The third ventilation hole is arranged in the fourth annular groove, and one end of the first ventilation hole is arranged at the bottom of the strip groove and close to the inner side of the mouth mold. In this way, the arrangement of the strip groove enables the first ventilation hole to be connected to the edge of the convex edge and the fourth annular groove, and the fourth annular groove is connected to the third ventilation hole. Such a structural design realizes the circulation of cooling air between the mouth mold and the primary mold while realizing the assembly of the mouth mold and the primary mold. A further optimized technical solution is that the first ventilation hole is a straight ventilation hole vertically downward, the second ventilation hole is a straight ventilation hole arranged obliquely, and the ventilation groove is a long through groove.

[0015] The present invention arranges interconnected slots on the primary mold, the mouth mold and the mouth ring so that cooling air flows through the molds and takes away the heat of the molds, thereby reducing the temperature of the mold and the temperature of the mold mouth, improving the cooling efficiency, reducing the thermal expansion deformation of the mouth mold and the mouth ring, and improving the product quality and the life of the mold; through the design of the mouth mold structure, the arrangement of the ventilation slots, the first ventilation holes, the strip grooves and the inclined top surface on the mouth mold, the cooling air can flow through the inside of the mouth mold, and there is enough cooling air circulation space and circulation path between the mouth mold and the primary mold, thereby further improving the cooling efficiency; The radially distributed second ventilation holes allow the cooling to pass completely through the inside of the mouth ring and take away enough heat. The third ventilation holes and the fourth ventilation holes are arranged at different positions on the primary mold, so that the cooling air has enough outflow channels, which improves the fluidity of the cooling air, reduces the impact of ventilation hole blockage on cooling, and improves the cooling efficiency. The arrangement of the third annular groove and the fourth annular groove, the assembly cooperation between the mouth mold and the mouth ring, the mouth mold and the primary mold are combined with the circulation path of the cooling air, and the structural layout is reasonable, so that the overall structure is compact and the mold components are perfectly matched in space, structure and function. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of an embodiment of the present invention.

[0017] Figure 2 It is a schematic diagram of the front structure of the die in an embodiment of the present invention.

[0018] Figure 3 It is a cross-sectional view of the die in the embodiment of the present invention.

[0019] Figure 4 It is a cross-sectional view of the mouth ring in the embodiment of the present invention.

[0020] Figure 5 It is a schematic diagram of the assembly of the mouth die and the mouth ring in an embodiment of the present invention.

[0021] Figure 6 It is an exploded schematic diagram of the mouth die and the mouth ring in an embodiment of the present invention.

[0022] Figure 7 Schematic diagram of the structure of the initial mold in an embodiment of the present invention.

[0023] Figure 8 Schematic diagram of the internal structure of the initial mold in an embodiment of the present invention.

[0024] Fig. 9 Schematic diagram of the internal structure of an embodiment of the present invention.

[0025] Fig.10 It is a cross-sectional view of an embodiment of the present invention.

[0026] Figure markings: 1-mouth mold; 2-mouth ring; 3-initial mold; 11-ventilation groove; 12-first ventilation hole; 13-strip groove; 14-third annular groove; 15-convex edge; 21-large end step; 22-second ventilation hole; 23-first annular groove; 24-second annular groove; 31-third ventilation hole; 32-fourth ventilation hole; 33-inner edge; 331-first surface; 332-second surface; 34-fourth annular groove. DETAILED DESCRIPTION

[0027] A mold assembly for rapidly cooling the mouth of a glass bottle, such as Figure 1 , Fig. 9 , Fig.10 As shown, it includes a mouth die 1, a mouth ring 2 and a primary die 3, wherein the mouth die 1 includes two mouth die halves that cooperate with each other. Figure 2 , Figure 3 As shown, a plurality of ventilation slots 11 penetrating the side surface are arranged on the side surface of each of the die half-molds, and a plurality of first ventilation holes 12 are arranged inside each of the die half-molds.

[0028] like Figures 4 to 6 The mouth ring 2 is assembled in the internal cavity formed by the two half-molds of the die, and the mouth ring 2 is in the shape of an annular boss. A circle of first annular grooves 23 with the central axis as the axis is arranged on the step surface of the large end step 21 of the annular boss, and the opening of the first annular groove 23 is located on the step surface of the large end step 21. A plurality of second ventilation holes 22 with the central axis as the axis are arranged on the circumferential side surface of the large end step 21 of the annular boss in a radially radial shape, one end of the second ventilation hole 22 is opposite to the position of the ventilation groove 11 on the die 1, so that the second ventilation hole 22 is connected with the ventilation groove 11, and the other end of the second ventilation hole 22 extends to the side of the first annular groove 23 and is connected with the first annular groove 23. At the same time, one end of the first ventilation hole 12 on the die 1 is located on the upper end surface of the die 1, and the other end extends downward through the die 1. When the die 1 is matched with the mouth ring 2, the outlet end of the first ventilation hole 12 is located at the top of the first annular groove 23 and is connected with the first annular groove 23. The ventilation slots 11 are connected with the second ventilation holes 22 and can be in a suitable shape, such as a circle, a square, etc. In this embodiment, the ventilation slots 11 are long slots, with 5-6 in number, evenly distributed on the outer circumference of the die 1, and their size should be larger than the diameter of the second ventilation holes 22. In this embodiment, the first ventilation holes 12 are straight ventilation holes extending vertically downward, and the second ventilation holes 22 are straight ventilation holes arranged obliquely.

[0029] like Figure 7 , Figure 8The primary mold 3 includes two primary mold halves that cooperate with each other. After the two primary mold halves are molded together, their lower ends cooperate with the molded mouth 1. The mouth ring 2, the mouth mold 1 and the primary mold 3 cooperate to form a cavity for forming the mouth of the glass bottle. There are a number of third ventilation holes 31 on the side of the lower end of the primary mold 3. One end of the third ventilation hole 31 is connected to the outside, and the other end is connected to the first ventilation hole 12 on the mouth mold 1. In this way, the ventilation groove 11 on the mouth mold 1 is connected to the second ventilation hole 22 on the mouth ring 2, the second ventilation hole 22 is connected to the first annular groove 23, the first annular groove 23 is connected to the first ventilation hole 12 on the mouth mold 1, and the first ventilation hole 12 is connected to the third ventilation hole 31 on the primary mold 3.

[0030] As one of the embodiments, after the mouth mold 1 and the primary mold 3 are matched, there is a ventilation gap between the upper end of the mouth mold 1 and the lower end of the primary mold 3, one end of the first ventilation hole 12 is connected to the ventilation gap, and the third ventilation hole 31 is also connected to the ventilation gap, so that the first ventilation hole 12 is connected to the third ventilation hole 31.

[0031] In order to further expand the space of the ventilation gap and improve the air circulation, the ventilation gap can be the gap space between the upper end surface of the mouth die 1 and the primary mold 3, or can be the gap between the upper end surface and the side surface of the mouth die 1 and the primary mold 3, and the mouth die 1 is supported on the primary mold 3. As one embodiment, in this embodiment, Figure 3 , Fig.10 The upper end surface of the die half mold is arranged obliquely outward in the radial direction, and the ventilation gap includes the space formed between the inclined upper end surface of the die half mold and the primary mold 3, which space can become the ventilation gap or a part of the ventilation gap.

[0032] In this embodiment, a plurality of strip grooves 13 are arranged on the upper end surface of the die half mold that cooperates with the blank mold 3 and are radially distributed with the central axis as the axis. One end of the strip groove 13 is closed on the inner side of the die 1, and the other end extends to the outer edge of the upper end surface of the die 1 and is open. The outer edge of the upper end surface of the die 1 is opposite to the position of the third ventilation hole 31 on the blank mold 3, so that the third ventilation hole 31 can be connected with the strip groove 13, and one end of the first ventilation hole 12 is arranged at a position close to the inner side of the die 1 at the bottom of the strip groove 13. Since the upper end surface of the die half mold is inclined, after the die 1 and the blank mold 3 are matched, there is a gap between the upper end surface of the die half mold and the blank mold 3, there is also a gap between the strip groove 13 and the blank mold 3, and there may also be a gap between the outer edge of the die 1 and the inner side surface of the blank mold 3. These gaps together form a ventilation gap, and cooling air can flow between these ventilation gaps. The third ventilation hole 31 on the blank mold 3 is connected with the ventilation gap.

[0033] In order to further increase the number of ventilation holes and improve the fluidity of air, in the present embodiment, a plurality of fourth ventilation holes 32 are further provided on the primary mold 3. Specifically, an inner edge 33 extending toward the center is provided at the lower end of the primary mold half mold that cooperates with the mouth mold 1, and the inner surface of the inner edge 33 includes a first surface 331 extending obliquely downward and inward, and the outer surface of the inner edge 33 includes a second surface 332 open to the outside, that is, the second surface 332 is located outside the mold, and the first surface 331 is located in the ventilation gap. A plurality of fourth ventilation holes 32 are provided on the inner edge 33, and one open end of the fourth ventilation hole 32 is located on the first surface 331, and the other open end is located on the second surface 332, which is connected to the outside. In addition to flowing out from the third ventilation hole 31, the cooling air can also flow out from the fourth ventilation hole 32.

[0034] In order to realize the assembly between the initial mold 3 and the mouth mold 1, in this embodiment, a second groove is provided on the inner side surface of the lower end of the initial mold half mold. For the rationality of the structural layout, the second groove is close to the inner edge 33 of the lower end of the initial mold 3, and the lower edge of the second groove is connected with the first surface 331 of the inner edge 33. The two can be combined into one. After the two initial mold half molds are molded together, the two second grooves are pieced together into a fourth annular groove 34. The upper end of the mouth mold half mold that cooperates with the initial mold 3 is provided with a convex edge 15 extending outward. After the two mouth mold half molds are molded together, they are assembled with the initial mold 3 through the cooperation of the convex edge 15 and the fourth annular groove 34, and the third ventilation hole 31 is arranged in the fourth annular groove 34.

[0035] In this embodiment, the open end of the strip groove 13 extends to the edge of the convex 15, and the edge of the convex 15 is embedded in the fourth annular groove 34. There is a gap between the edge of the convex 15 and the fourth annular groove 34, and the upper end outlet of the first ventilation hole 12 is arranged at the bottom of the strip groove 13 and close to the inner side of the mouth mold 1. In this way, the arrangement of the strip groove 13 enables the first ventilation hole 12 to be connected to the edge of the convex 15 and the fourth annular groove 34, and the cooling air can flow in the fourth annular groove 34. The fourth annular groove 34 is connected to the third ventilation hole 31. Such a structural design realizes the circulation of cooling air between the mouth mold and the initial mold while realizing the assembly of the mouth mold and the initial mold, and further expands the space for the circulation of cooling air.

[0036] In order to improve the air circulation between the ventilation groove 11 on the mouth die 1 and the second ventilation hole 22 on the mouth ring 2, in this embodiment, a circle of second annular grooves 24 with the central axis as the axis is provided on the circumferential side surface of the large end step 21 of the annular boss of the mouth ring 2, the opening of the second annular groove 24 faces outward and back to the central axis, one end of the second ventilation hole 22 is arranged at the bottom of the second annular groove 24, and the ventilation groove 11 and the second annular groove 24 on the mouth die 1 are positioned opposite to each other, so that the second ventilation hole 22 can be connected with the ventilation groove 11 through the second annular groove 24, and after the cooling air enters the ventilation groove 11, it can circulate in the second annular groove 24 and then flow out through the second ventilation hole 22, thereby avoiding the situation where some second ventilation holes 22 are misaligned with the ventilation groove 11, thereby improving the ventilation.

[0037] In order to realize the assembly between the mouth die 1 and the mouth ring 2, in this embodiment, a first groove is provided on the inner side surface of the mouth die half-mold. After the two mouth die half-molds are closed, the two first grooves are pieced together to form a third annular groove 14 which can be matched with the outer periphery of the large end step 21 of the annular boss of the mouth ring 2. The mouth ring 2 is assembled in the mouth die 1 by the cooperation between the outer periphery of its large end step and the third annular groove 14, and the ventilation groove 11 is arranged in the third annular groove 14.

[0038] The method for cooling the mold assembly of this embodiment is: the mold is equipped with adjustable cooling air outside, such as Fig.10 After the cooling air enters from the ventilation groove 11 of the mouth die 1, it flows in the second annular groove 24 on the mouth ring 2, and then enters the first annular groove 23 on the mouth ring 2 through the second ventilation hole 22 on the mouth ring 2, and then flows upward from the first ventilation hole 12 on the mouth die 1, and reaches the matching point (fourth annular groove 34) between the edge of the mouth die 1 and the primary mold 3 through ventilation gaps such as the strip groove 13 on the mouth die 1, and then flows out of the equipment through the third ventilation hole 31 and the fourth ventilation hole 32 on the primary mold 3, so as to cool the glass bottle mouth forming part, and at the same time cool the mouth die 1, the mouth ring 2, and the primary mold 3.

[0039] The above detailed description is a specific description of a feasible embodiment of the present invention. The embodiment is not intended to limit the patent scope of the present invention. Any equivalent implementation or modification that does not deviate from the present invention should be included in the patent scope of this case.

Claims

1. A mold assembly for rapid cooling of a glass bottle mouth, characterized in that: The invention comprises a die, a ring and a primary die, wherein the die comprises two die halves which cooperate with each other, a side surface of each die half is provided with a plurality of ventilation grooves which penetrate the side surface, and a plurality of first ventilation holes are provided inside each die half; the ring is assembled in an internal cavity formed by the two die halves being combined, the ring is in the shape of an annular boss, a circle of first annular grooves with a central axis as an axis is provided on the step surface of the large end step of the annular boss, the opening of the first annular groove is located on the step surface of the large end step, a plurality of second ventilation holes which are radially distributed with a central axis as an axis are provided on the circumferential side surface of the large end step of the annular boss, one end of the second ventilation hole is opposite to the position of the ventilation groove on the die, so that the second ventilation hole is connected with the ventilation groove, the other end of the second ventilation hole extends to the side surface of the first annular groove and is connected with the first annular groove, at the same time, one end of the first ventilation hole on the die is located on the upper end surface of the die, and the other end extends downward through the die, when the die cooperates with the ring, the outlet end of the first ventilation hole is located at the top of the first annular groove and is connected with the first annular groove; The primary mold comprises two primary mold halves that cooperate with each other, and the lower ends of the two primary mold halves cooperate with the mouth mold after the mold is closed, and the mouth ring, the mouth mold and the primary mold cooperate to form a cavity for forming the mouth of the glass bottle, and a plurality of third ventilation holes are provided on the side surface of the lower end of the primary mold, one end of the third ventilation hole is connected to the first ventilation hole on the mouth mold, and the other end is connected to the outside; After the mouth mold and the primary mold are matched, a ventilation gap exists between the upper end of the mouth mold and the lower end of the primary mold, one end of the first ventilation hole is connected to the ventilation gap, and the third ventilation hole is also connected to the ventilation gap, so that the first ventilation hole is connected to the third ventilation hole.

2. A mold assembly for rapid cooling of a glass bottle mouth according to claim 1, characterized in that: A plurality of strip grooves are arranged on the upper end surface of the mouth mold half mold that cooperates with the primary mold and are radially distributed with the central axis as the axis. One end of the strip groove is closed on the inner side of the mouth mold, and the other end extends to the outer edge of the upper end surface of the mouth mold and is open. The outer edge of the upper end surface of the mouth mold is opposite to the position of the third ventilation hole on the primary mold, so that the third ventilation hole can be connected with the strip groove. One end of the first ventilation hole is arranged at the bottom of the strip groove and close to the inner side of the mouth mold.

3. A mold assembly for rapid cooling of a glass bottle mouth according to claim 1, characterized in that: The upper end surface of the mouth mold half is arranged obliquely outward in the radial direction, and the ventilation gap includes the space formed between the inclined upper end surface of the mouth mold half and the blank mold.

4. A mold assembly for rapid cooling of a glass bottle mouth according to claim 1, characterized in that: An inner edge extending toward the center is arranged at the lower end of the initial mold half mold that cooperates with the mouth mold, the inner surface of the inner edge includes a first surface extending obliquely downward and inward, the outer surface of the inner edge includes a second surface open to contact with the outside, the first surface is located in the ventilation gap, and a plurality of fourth ventilation holes are arranged on the inner edge, one end of the fourth ventilation hole is arranged on the first surface, and the other end is arranged on the second surface.

5. The mold assembly for rapid cooling of a glass bottle mouth according to claim 1, characterized in that: A second annular groove with the central axis as the axis is arranged on the circumferential side surface of the large end step of the annular boss of the mouth ring, the opening of the second annular groove is facing away from the central axis, one end of the second ventilation hole is arranged at the bottom of the second annular groove, and the ventilation groove on the mouth mold is opposite to the position of the second annular groove, so that the second ventilation hole is connected with the ventilation groove.

6. A mold assembly for rapid cooling of a glass bottle mouth according to claim 1, characterized in that: A first groove is provided on the inner side surface of the mouth mold half. After the two mouth mold halfs are closed, the two first grooves are assembled into a third annular groove that can be matched with the outer periphery of the large end step of the annular boss of the mouth ring. The mouth ring is assembled in the mouth mold through the cooperation between the outer periphery of its large end step and the third annular groove, and the ventilation groove is arranged in the third annular groove.

7. A mold assembly for rapid cooling of a glass bottle mouth according to claim 1, characterized in that: A second groove is arranged on the inner side surface of the lower end of the initial mold half mold. After the two initial mold half molds are molded together, the two second grooves are pieced together to form a fourth annular groove. The upper end of the mouth mold half mold that cooperates with the initial mold is provided with a convex edge extending outward. After the two mouth mold half molds are molded together, the convex edge and the fourth annular groove are matched to assemble with the initial mold.

8. A mold assembly for rapid cooling of a glass bottle mouth according to claim 7, characterized in that: A plurality of strip grooves are arranged on the upper end surface of the die half mold and are radially distributed with the central axis as the axis. One end of the strip groove is closed on the inner side of the die, and the other end extends to the edge of the convex edge on the die and is open. There is a gap between the edge of the convex edge and the fourth annular groove. The third ventilation hole is arranged in the fourth annular groove, and one end of the first ventilation hole is arranged at the bottom of the strip groove and close to the inner side of the die.

9. The mold assembly for rapid cooling of a glass bottle mouth according to claim 1, characterized in that: The first ventilation hole is a straight ventilation hole extending vertically downward, the second ventilation hole is a straight ventilation hole arranged obliquely, and the ventilation slot is a long through slot.

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