Glass mold punch device

Abstract

The invention discloses a glass mold punch device which comprises a base, a through hole is formed in the base, a punch is arranged in the through hole, the punch is slidably connected with the base, the glass mold punch device further comprises an air blowing mechanism, the air blowing mechanism is arranged on the through hole, the air blowing mechanism blows out inert gas, and the inert gas can cover the punch. The air blowing mechanism is arranged above the punch, the inert gas is blown out through the air blowing mechanism, the punch is covered with the inert gas, a layer of gas hood is formed on the punch through the inert gas, the punch is isolated from air, and therefore the surface of the punch is effectively prevented from being oxidized, the service life of the punch is prolonged, and the service life of the punch is prolonged. The service life of the punch is prolonged; and the production quality of glass is improved.

Description

Technical Field

[0001] The invention relates to glass bottle production equipment, in particular to a glass mold punch device used in glass bottle production. Background Art

[0002] In the manufacturing process of glass bottles, the main functions of the punch mechanism include forming the bottle mouth and bottle head end face, as well as making air pockets. These functions are essential to ensure the structural integrity and sealing of glass bottles. During production, since the punch parts are in direct contact with the glass raw materials, the temperature of the contact surface can reach over 600°C. Since traditional punch parts are made of cast iron materials, iron reacts with oxygen in the air at high temperatures to produce iron oxide and form a layer of oxide scale. The expansion coefficient of the oxide scale is inconsistent with the cast iron matrix, resulting in its loosening and falling off, which destroys the surface quality of the punch parts and seriously affects the quality of glass production. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a glass mold punch device to solve one or more technical problems existing in the prior art and at least provide a beneficial choice or create conditions.

[0004] The solution of the present invention to solve its technical problem is: a glass mold punch device, including a base, a through hole is provided in the base, a punch is provided in the through hole, the punch is slidably connected to the base, and also includes a blowing mechanism, the blowing mechanism is provided on the through hole, the blowing mechanism blows out an inert gas, and the inert gas can cover the outside of the punch.

[0005] The beneficial effect of the present invention is as follows: the present invention provides an air blowing mechanism above the punch, blows out an inert gas through the air blowing mechanism, and makes the inert gas cover the outside of the punch, and utilizes the inert gas to form an air cover on the punch, isolating the punch from the air, thereby effectively preventing the surface oxidation of the punch, extending the service life of the punch and improving the production quality of glass.

[0006] As a further improvement of the above technical solution, the blowing mechanism includes a plurality of gas outlets, and the plurality of gas outlets are annularly distributed on the blowing mechanism. By providing a plurality of gas outlets, the inert gas can be evenly distributed around the punch, thereby forming a more stable gas hood.

[0007] As a further improvement of the above technical solution, the blowing mechanism includes a cover body, a circular hole is provided in the cover body, the circular hole corresponds to the through hole, and the gas outlet is distributed on the peripheral wall of the circular hole. The cover body is a disc-shaped part, and by arranging a pipeline and an air inlet inside the cover body, the inert gas is ejected from the inner peripheral wall of the cover body, thereby improving the molding quality of the gas hood.

[0008] As a further improvement of the above technical solution, a return port is further provided on the peripheral wall of the circular hole, and the return port is provided below the gas outlet. By providing the return port, the ejected inert gas can be recycled, reducing the loss of inert gas and improving economic efficiency.

[0009] As a further improvement of the above technical solution, the opening of the gas outlet is inclined upward, and the opening of the gas return port is inclined downward. The specific gravity of the inert gas is generally heavier than that of air, and the gas outlet is inclined upward, so that the gas is sprayed upward and then covers the outer surface of the punch, and the excess gas sinks downward under the action of gravity and flows back from the gas return port.

[0010] As a further improvement of the above technical solution, a piston rod is provided in the through hole, and the piston rod is fixedly connected to the punch through a clamp ring. The punch is driven up and down by the piston rod, and the piston rod and the punch are mounted by the clamp ring, so that the punch can be quickly replaced.

[0011] As a further improvement of the above technical solution, it also includes an air supply system, which is connected to the air blowing mechanism.

[0012] As a further improvement of the above technical solution, the gas supply system includes a control unit, which includes a flow meter, a pressure gauge and a control valve. The control unit is used to adjust the flow rate and pressure of the blowing mechanism. In order to form a stable and reliable gas mask, it is necessary to regulate the gas injection amount and pressure of the blowing mechanism.

[0013] As a further improvement of the above technical solution, the gas supply system further includes a gas detector, a safety valve and a cut-off device. The gas detector is used to detect the concentration of the inert gas in the environment, and the safety valve and the cut-off device are used to cut off the gas source of the gas supply system. By setting up the gas detector, when a gas leak or other emergency occurs, the gas source can be cut off by the safety valve and the cut-off device to interrupt the supply of the inert gas.

[0014] As a further improvement of the above technical solution, the inert gas is argon. The specific heat capacity of argon is about 0.52KJ / (kg.K), while the specific heat capacity of air is 1.0KJ / (kg.K). The heat conductivity of argon is smaller than that of air. The use of argon can not only isolate the surface of the punch from the oxygen in the air, but also reduce the heat transfer of the glass liquid to the punch, maintain the surface temperature of the punch stable, and further improve the service life of the punch. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly describes the drawings required for use in the description of the embodiments. Obviously, the drawings described are only part of the embodiments of the present invention, not all of the embodiments, and those skilled in the art can also obtain other design solutions and drawings based on these drawings without creative work.

[0016] Figure 1 It is a structural schematic diagram of the glass mold punch device of the present invention; Figure 2 It is a structural schematic diagram of the blowing mechanism of the present invention.

[0017] Reference numerals: Base 100, through hole 110, punch 200, blowing mechanism 300, cover 310, round hole 311, air outlet 320, air return port 330, die 400, piston rod 500 DETAILED DESCRIPTION The following will clearly and completely describe the concept, specific structure and technical effects of the present invention in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, other embodiments obtained by technicians in this field without creative work are all within the scope of protection of the present invention. The preferred embodiments of the present invention are shown in the drawings. The purpose of the drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0018] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0019] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0020] In the description of the present invention, unless otherwise clearly defined, the terms such as setting, installing, connecting, etc. should be understood in a broad sense, and the technical personnel in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific content of the technical solution. At the same time, the various technical features in the invention can be combined interchangeably without conflicting with each other.

[0021] Glass bottles and jars are a common type of container, widely used in daily life and industrial production. The main molding methods include blow-blowing and pressure-blowing. The pressure-blowing method is a technology in the field of glassware production. It combines pressing and blowing to form the bottle body and the bottle mouth synchronously, thereby producing a uniform glass bottle. Compared with the traditional blow-blowing method, this method can produce glass bottles with lighter weight and higher strength. It is suitable for the production of hollow glass products such as wide-mouth bottles, and is also used to produce small-mouth bottles.

[0022] The punch is a key part that must be used in the pressure-blowing production. The punch is generally installed at the end of the cylinder, which drives the punch up and down to cooperate with the mouth mold to form the mouth of the glass bottle. When the row machine produces glass bottles, the punch is in direct contact with the glass liquid raw material, and the temperature of the glass liquid raw material can reach above 600°C during preparation. The punch is generally made of metal iron. Iron reacts with oxygen in the air at high temperature to generate iron oxide and form a layer of oxide scale. The oxide scale is inconsistent with cast iron due to its expansion coefficient, which leads to the iron oxide falling off easily at high temperature. It not only destroys the surface quality of the punch, but also the fallen oxide scale will enter the glass liquid, which has an adverse effect on the quality of the produced glass bottles.

[0023] In view of this, the improvement method currently commonly used in the industry is to add chromium, manganese, nickel and other elements to the cast iron substrate, or use high-hardness special alloy materials for surface spray welding to delay the oxidation process of parts (such as the technical solution disclosed in the Chinese invention application with publication number CN116408604A). However, the effect of improving the oxidation of the punch through material improvement is limited, and the special alloy material leads to high production costs of the punch.

[0024] To this end, the present invention provides a glass mold punch device, which forms a protective gas cover on the surface of the punch to reduce the oxidation process of the punch, extend the service life of the punch and improve the production quality of glass bottles. Specifically: See also Figure 1~Figure 2The glass mold punch device in this embodiment includes a base 100, a through hole 110 is provided in the base 100, a punch 200 is provided in the through hole 110, and the punch 200 is slidably connected to the base 100. It also includes a blowing mechanism 300, which is provided on the through hole 110 and blows out an inert gas, and the inert gas can cover the outside of the punch 200.

[0025] See also Figure 1 The base 100 and the punch 200 adopt the common structure in the prior art. Generally, a mouth die 400 is provided above the base 100. During production, the high-temperature glass droplets are delivered to the mold cavity of the mouth die 400, and then the punch 200 is pushed upward from the through hole 110 of the base 100. The outer surface of the punch 200 and the inner wall of the mold cavity of the mouth die 400 are used to form the blank of the glass bottle. After the glass bottle blank is formed, the blank is transferred to the forming mold and formed by blowing. It can be seen that the punch 200 needs to extrude the high-temperature glass liquid, so the punch 200 needs to directly contact the high-temperature glass liquid. In this solution, a blowing mechanism 300 is arranged above the punch 200. The blowing mechanism 300 blows inert gas onto the upper surface of the through hole 110. Then, when the punch 200 passes through the through hole 110, the inert gas can cover the outer surface of the punch 200 and form a gas cover outside the punch 200. The punch 200 and the gas cover enter the die 400 together. Since there is a gas cover between the surface of the punch 200 and the glass liquid, the gas cover can be used to avoid direct contact between air and the surface of the punch, effectively preventing the surface oxidation of the punch and extending the service life of the punch. Moreover, since the surface of the punch will not directly contact the glass liquid, even if there is oxide scale on the surface of the punch, the oxide scale is not easy to enter the glass liquid, thereby improving the production quality of glass products.

[0026] For further information, see Figure 2 The blowing mechanism 300 includes a cover 310, which is in the shape of a disc as a whole. The cover 310 can be fixedly mounted on the base 100, and the cover 310 includes a circular hole 311, the aperture of the circular hole 311 is larger than the aperture of the through hole 110, and the circular hole 311 is installed substantially concentrically with the through hole 110. A plurality of air outlets 320 are arranged on the peripheral wall of the circular hole 311. The plurality of air outlets 320 are evenly distributed on the peripheral wall of the circular hole 311 in an annular manner. Moreover, the plurality of air outlets 320 are substantially located on the same horizontal plane.

[0027] It is understandable that the cover body 310 is also provided with an air inlet and a distribution pipe. The air inlet is connected to an external gas source. The inert gas enters the cover body 310 through the air inlet, and then passes through the distribution pipe and is discharged from a plurality of air outlets 320. In order to ensure that the multiple air outlets 320 can discharge gas evenly, the flow channel of the distribution pipe is also optimized. Moreover, the number and distribution of the air outlets 320 can be determined according to actual use requirements, combined with the air outlet volume of the air outlet and the aperture of the circular hole 311. The punch 200 is generally an annular structure, and when the punch 200 contacts the glass liquid, it is also in all-round contact. Therefore, in order to improve the comprehensiveness of the gas hood, the blowing mechanism 300 includes a plurality of air outlets 320, and the plurality of air outlets 320 are distributed annularly on the blowing mechanism 300.

[0028] In addition, since the punch 200 needs to frequently pass through the through hole 110 during operation, the shape of the gas hood is easily broken down during the reciprocating movement of the punch. Therefore, during operation, the inert gas needs to be continuously ejected from the gas outlet 320, but the amount of gas used by the gas hood is also limited. Therefore, in order not to waste the inert gas ejected more, a return air port 330 is also provided on the peripheral wall of the circular hole 311. The return air port 330 is provided below the gas outlet 320, and the return air port 330 is also provided with multiple. It can be understood that a recovery pipeline and a recovery port are provided in the cover body 310, and the multiple return air ports 330 are connected to the recovery port through the recovery pipeline, and the recovery port is generally connected to the negative pressure device, so that a negative pressure is formed on the return air port 330. After the inert gas approaches the return air port 330, it will be adsorbed by the negative pressure device, and then the adsorbed inert gas is recycled by the recovery device. Thereby reducing the loss of inert gas and improving the overall economy. See also Figure 2 , further as a preferred embodiment, the opening of the air outlet 320 is tilted upward, and the opening of the air return port 330 is tilted downward. Since the specific gravity of the inert gas is generally heavier than that of air, the air outlet is tilted upward, so that the gas is sprayed upward and then covers the outer surface of the punch 200, and then the excess gas sinks downward under the action of gravity and flows back from the air return port. At the same time, the air outlet 320 sprays upward, while the air return port 330 is tilted downward, which can prevent the inert gas from being sucked away by the air return port immediately after it comes out of the air outlet. It can be understood that in the cover body 310, the air inlet pipeline and the air return pipeline are completely independent and are not connected in series with each other.

[0029] In addition, in order to facilitate the recovery of the inert gas, a supporting ring is also provided on the circular hole 311, the inner diameter of the supporting ring is smaller than the inner diameter of the circular hole 311, the inner diameter of the supporting ring is substantially the same as the outer diameter of the punch base, and the supporting ring is located below the return port 330. After the inert gas is ejected from the gas outlet 320, a portion of it adheres to the surface of the punch 200, while the rest of the inert gas will settle on the supporting ring. Since the gap between the supporting ring and the punch base is very small, the inert gas can rarely pass through the gap between the two and slip away. The area enclosed by the supporting ring and the peripheral wall of the circular hole 311 can just be used to receive the excess inert gas. At the same time, the return port 330 is tilted downward, facing the upper space of the supporting ring, so the inert gas accumulated on the upper part of the supporting ring can be sucked away and recovered by the return port 330.

[0030] See also Figure 1 As a further preferred embodiment, a piston rod 500 is provided in the through hole 110, and the piston rod 500 is fixedly connected to the punch 200 by a clamp ring. The piston rod 500 is the piston rod in the cylinder that drives the punch 200 to move up and down in the above-mentioned prior art. The cover body 310 can be a cylinder head that matches the cylinder. By organically integrating the cylinder head of the cylinder with the cover body 310, the modification cost of the existing row machine can be reduced and the convenience can be improved. At the same time, the piston rod 500 and the punch 200 are installed by a clamp ring. When a different punch 200 needs to be replaced, it can be quickly replaced by just using the clamp ring, which improves the convenience.

[0031] It is understandable that this embodiment is applicable to the glass bottle manufacturing process of the pressure-blowing method, but this solution is also applicable to the glass bottle manufacturing process of the blow-blowing method. In the blow-blowing method, a core is used instead of a punch, so only the punch needs to be replaced with a core, and the inert gas can also be sprayed through the corresponding blowing mechanism 300 to protect the surface of the core.

[0032] In addition, as a further preferred embodiment, the glass mold punch device also includes an air supply system, which is connected to the blowing mechanism. The air supply system includes a control unit, which includes a flow meter, a pressure gauge and a control valve. The control unit is used to adjust the flow rate and pressure of the blowing mechanism. In order to form a stable and reliable gas hood, it is necessary to regulate the gas injection amount and pressure of the blowing mechanism.

[0033] Generally speaking, the inert gas is stored in a high-pressure gas cylinder in a special safety area, and then transported to the row machine through a special pipeline. Finally, it is connected to the blowing mechanism 300. By setting the distribution pipeline on the cover body 310, it is ensured that the inert gas can evenly cover the entire surface of the punch 200.

[0034] Then the gas supply system also includes a control unit, which uses flow meters, pressure gauges, control valves, etc. to adjust the flow and pressure of the inert gas. Moreover, these control units can also be electrically connected to the display screen on the array machine to intuitively feedback the supply status of the inert gas through the display screen, and can directly adjust various gas supply parameters on the display screen to achieve a more ideal gas supply condition.

[0035] As a further preferred embodiment, the gas supply system further includes a gas detector, a safety valve and a cut-off device. The gas detector is used to detect the concentration of the inert gas in the environment, and the safety valve and the cut-off device are used to cut off the gas source of the gas supply system. By setting up a gas detector, the gas detector detects the concentration of the inert gas in the environment of the row machine. When a gas leak or other emergency occurs, the gas source can be cut off through the safety valve and the cut-off device to interrupt the supply of the inert gas. The safety of the production environment is ensured.

[0036] As a further improvement of the above technical solution, the inert gas is argon. The specific heat capacity of argon is about 0.52KJ / (kg.K), while the specific heat capacity of air is 1.0KJ / (kg.K). The heat conductivity of argon is smaller than that of air. The use of argon can not only isolate the surface of the punch from the oxygen in the air, but also reduce the heat transfer of the glass liquid to the punch, maintain the surface temperature of the punch stable, and further improve the service life of the punch.

[0037] The preferred embodiments of the present invention are specifically described above, but the invention is not limited to the embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A glass mold punch device, comprising a base, a through hole is provided in the base, a punch is provided in the through hole, the punch is slidably connected to the base, and is characterized in that: It also includes a blowing mechanism, which is arranged on the through hole and blows out an inert gas, and the inert gas can cover the outside of the punch.

2. The glass mold punch device according to claim 1, characterized in that: The blowing mechanism comprises a plurality of air outlets, and the plurality of air outlets are distributed on the blowing mechanism in a ring shape.

3. The glass mold punch device according to claim 2, characterized in that: The blowing mechanism comprises a cover body, a circular hole is arranged in the cover body, the circular hole corresponds to the through hole, and the air outlets are distributed on the peripheral wall of the circular hole.

4. The glass mold punch device according to claim 3, characterized in that: An air return port is also provided on the peripheral wall of the circular hole, and the air return port is arranged below the air outlet.

5. The glass mold punch device according to claim 4, characterized in that: The opening of the air outlet is inclined upward, and the opening of the air return port is inclined downward.

6. The glass mold punch device according to claim 5, characterized in that: A piston rod is arranged in the through hole, and the piston rod is fixedly connected to the punch through a clamp ring.

7. The glass mold punch device according to claim 1, characterized in that: It also includes an air supply system, which is communicated with the air blowing mechanism.

8. The glass mold punch device according to claim 7, characterized in that: The air supply system comprises a control unit, which comprises a flow meter, a pressure meter and a control valve. The control unit is used to adjust the flow rate and pressure of the blowing mechanism.

9. The glass mold punch device according to claim 7, characterized in that: The gas supply system also includes a gas detector, a safety valve and a cut-off device. The gas detector is used to detect the concentration of the inert gas in the environment, and the safety valve and the cut-off device are used to cut off the gas source of the gas supply system.

10. The glass mold punch device according to claim 1, characterized in that: The inert gas is argon.

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