Bottle blowing device for balancing internal and external pressure
By setting up an exhaust passage in the blowing device to connect with the bottle mouth and the cooling chamber outside the bottle, the interconnection between the blowing air and the cooling air on the bottle mouth is achieved, which solves the problem of unstable internal and external pressure difference in glass bottles and jars, and improves the The molding quality avoids irregular molding and dimensional defects.
Patent Information
- Application Number
- CN202411360773.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-27
- Publication Date
- 2024-12-20
AI Technical Summary
During the manufacturing process of glass bottles, the pressure fluctuations of the blowing air and the cooling air on the bottle mouth cause unstable pressure difference between the inside and outside the bottle mouth, resulting in irregular molding, special-shaped bulge convexity and defects in the outer diameter size.
Design a blowing device that balances internal and external pressures. By setting an exhaust channel in the blowing head to communicate with the bottle mouth and the outside cooling chamber, the blowing bottle air and the bottle mouth cooling air are interconnected after completing the function to achieve internal and external pressure. Poor self-balancing and mixed discharge.
It effectively solves the problem of unstable internal and external pressure difference before curing and setting of the glass bottle mouth, alleviates the defects of special-shaped convexity, miscirculation and poor outer diameter dimensions, and improves the molding quality of glass bottles and jars.
Smart Images
Figure CN119161092A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of bottle glass production and manufacturing, and in particular relates to a bottle blowing device capable of balancing internal and external pressures. Background Art
[0002] At present, the blow molding technology is widely used in the manufacture of glass bottles and jars. During the production process, the device that blows the glass blank into the shape of the product in the molding mold is commonly known as the "blowing head". The "bottle blowing air" of the blowing head comes from the air supply system with a pressure of 0.3MP, while the "bottle mouth cooling air" of the blowing head comes from the air supply system with a pressure of 0.2MP. The "bottle blowing air" performs the duty of blowing the blank to shape the product, and the "bottle mouth cooling air" achieves the function of cooling the bottle mouth. Although the two winds are independent of each other and do not interfere with each other, the fluctuation of the wind pressure in the two winds during the production process will frequently break the pressure difference balance inside and outside the bottle mouth, and the viscosity of the hot glass at the bottle mouth also changes to varying degrees due to various reasons. The unstable pressure difference of these two winds (one outside the bottle mouth and one inside the bottle mouth) will cause the high-temperature bottle mouth that has not yet solidified to appear irregularly formed (the bottle mouth is bulging, and the outer diameter size of the roundness is not up to standard). Summary of the invention
[0003] The purpose of the present invention is to provide a bottle blowing device which can balance the internal and external pressures, so as to solve the above problems existing in the prior art.
[0004] In order to achieve the above object, the present invention adopts the following technical solutions:
[0005] A bottle blowing device for balancing internal and external pressures comprises a blowing head installed at the upper end of a forming mold, a blowing head inner cavity is opened in the middle of the lower end of the blowing head, the blowing head inner cavity is sleeved outside the bottle mouth of a glass blank, the inner top surface of the blowing head inner cavity abuts against the upper end of the bottle mouth, the inner wall of the blowing head inner cavity is spaced apart from the outer wall of the bottle mouth and cooperates to form a bottle outer cooling cavity; a bottle blowing pipe is installed in the blowing head passing through the upper and lower ends thereof, the lower end of the bottle blowing pipe is penetrated into the glass blank through the upper end of the bottle mouth, so as to inject bottle blowing air into the glass blank through the bottle blowing pipe; an outer bottle blowing channel is also arranged on the blowing head, so as to inject bottle mouth cooling air into the bottle outer cooling cavity outside the bottle mouth through the outer bottle blowing channel; an exhaust channel is opened on the inner top surface of the blowing head inner cavity, and the exhaust channel is connected with both the bottle mouth and the bottle outer cooling cavity.
[0006] As a preferred technical solution in the present invention, the exhaust channel includes a middle exhaust cavity opened in the blowing head outside the bottle blowing tube, the middle exhaust cavity is coaxially arranged with the bottle mouth, and the inner diameter of the middle exhaust cavity is smaller than the inner diameter of the bottle mouth, and a tail exhaust cavity is opened on one side of the middle exhaust cavity and passes through to the outside of the blowing head; the exhaust channel also includes a plurality of grooves evenly opened on the top surface of the inner cavity of the blowing head, and all the grooves are connected to the cooling cavity outside the bottle and the middle exhaust cavity.
[0007] As a preferred technical solution in the present invention, the central exhaust cavity is a circular inner cavity, and the width of each groove is smaller than the diameter of the central exhaust cavity.
[0008] As a preferred technical solution in the present invention, four grooves are provided, and the central exhaust cavity and the four grooves are assembled into a cross-shaped exhaust groove on the same horizontal plane.
[0009] As a preferred technical solution in the present invention, the outer bottle blowing channel includes an annular bottle blowing channel opened on the inner wall of the inner cavity of the blowing head, and the outer bottle blowing channel also includes a bottle mouth cooling air inlet channel opened on the blowing head, the inlet of the bottle mouth cooling air inlet channel passes through the upper end of the blowing head, the outlet of the bottle mouth cooling air inlet channel is connected to the annular bottle blowing channel, and the outlet of the annular bottle blowing channel is aligned with the outer wall of the bottle mouth.
[0010] As a preferred technical solution in the present invention, the bottle outer blowing channel also includes a bottle wind control plate arranged in an annular shape, the bottle wind control plate is matched and sleeved in the inner cavity of the blowing head, and the outer wall of the bottle wind control plate is in contact with the inner wall of the inner cavity of the blowing head; a plurality of vents are evenly arranged on the bottle wind control plate, the inlet of each vent is connected to the annular bottle blowing channel, and the outlet of each vent is aligned with the outer wall of the bottle mouth.
[0011] Beneficial effect: The present invention connects the exhaust channel with the bottle mouth and the cooling cavity outside the bottle, so that the bottle blowing air and the bottle mouth cooling air are interconnected after completing their corresponding functions to achieve self-balance of the internal and external pressure difference, and are mixed together and discharged through the exhaust port. This effectively solves the problem of unstable internal and external pressure difference before the bottle mouth glass is solidified and formed, and alleviates the defects of the bottle mouth such as abnormal bulging, out-of-roundness, and substandard outer diameter. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a cross-sectional effect diagram of the present invention;
[0013] Figure 2 for Figure 1 A magnified schematic diagram of part A;
[0014] Figure 3 It is a bottom view of the air blowing head in the present invention.
[0015] In the figure: 1-blowing head; 101-bottle outer cooling cavity; 102-bottle blowing tube; 103-bottle outer blowing channel; 1031-annular bottle blowing channel; 1032-bottle mouth cooling air inlet channel; 1033-bottle air control panel; 104-exhaust channel; 1041-groove; 1042-middle exhaust cavity; 1043-rear exhaust cavity; 2-molding mold; 3-glass blank; 301-bottle mouth. DETAILED DESCRIPTION
[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the present invention will be briefly introduced below in combination with the drawings and the description of the embodiments or the prior art. Obviously, the following description of the structure of the drawings is only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention.
[0017] Example:
[0018] like Figure 1-Figure 3 As shown, this embodiment provides a bottle blowing device for balancing internal and external pressures, including a blowing head 1 installed on the upper end of the forming mold 2, the lower end of the blowing head 1 abuts against the forming mold 2 to ensure the stability of the blowing head 1, a blowing head inner cavity is opened in the middle of the lower end of the blowing head 1, the lower end of the blowing head inner cavity is blocked by the forming mold 2 to form a sealed cavity, which can prevent airflow from running around during cold blowing, the blowing head inner cavity is sleeved outside the bottle mouth 301 of the glass blank 3, the inner top surface of the blowing head inner cavity abuts against the upper end of the bottle mouth 301 to ensure the relative stability of the glass blank 3, the inner wall of the blowing head inner cavity is spaced from the outer wall of the bottle mouth 301 and cooperates to form a bottle outer cooling cavity 101, which is convenient for injecting bottle mouth cooling air into the bottle outer cooling cavity 101, and then cooling the outside of the bottle mouth 301.
[0019] To be further detailed, the blowing head 1 is equipped with a bottle blowing tube 102 that passes through its upper and lower ends. The lower end of the bottle blowing tube 102 is inserted into the interior of the glass blank 3 through the upper end of the bottle mouth 301, so as to inject bottle blowing air into the interior of the glass blank 3 through the bottle blowing tube 102, so as to blow the glass blank into the product shape in the molding mold through the bottle blowing air. The blowing head 1 is also provided with an outer bottle blowing channel 103, which is used to inject bottle mouth cooling air into the bottle outer cooling cavity 101 outside the bottle mouth 301 through the outer bottle blowing channel 103 to ensure the normal supply of bottle mouth cooling air; the inner top surface of the inner cavity of the blowing head is provided with an exhaust channel 104, and the exhaust channel 104 is connected with the bottle mouth 301 and the outer bottle cooling cavity 101, so that the bottle blowing air and the bottle mouth cooling air are interconnected after completing their corresponding functions to achieve self-balance of the internal and external pressure difference, and are mixed together and discharged through the exhaust port, which effectively alleviates the defects of the bottle mouth abnormal bulging, out-of-roundness, substandard outer diameter and the like.
[0020] The present invention connects the exhaust channel 104 with the bottle mouth 301 and the bottle outer cooling chamber 101, so that the bottle blowing air and the bottle mouth cooling air are interconnected after completing their corresponding functions to achieve self-balance of the internal and external pressure difference, and are mixed together and discharged through the exhaust port, thereby effectively solving the problem of unstable internal and external pressure difference before the bottle mouth glass is solidified and finalized, and alleviating the defects of the bottle mouth such as abnormal bulging, out-of-roundness, and substandard outer diameter.
[0021] As a preferred implementation scheme in this embodiment, it is further explained that the exhaust passage 104 includes a middle exhaust cavity 1042 opened in the blowing head 1 outside the bottle blowing tube 102, the bottle blowing tube 102 coaxially penetrates the middle exhaust cavity 1042, the middle exhaust cavity 1042 is coaxially arranged with the bottle mouth 301, and the inner diameter of the middle exhaust cavity 1042 is smaller than the inner diameter of the bottle mouth 301, so that the bottle blowing wind can smoothly enter the middle exhaust cavity 1042, and the middle exhaust cavity 104 A tail exhaust cavity 1043 is provided on one side of the blow head 2, which runs through the outside of the blow head 1 and can exhaust the cooling air; the exhaust channel 104 also includes a plurality of grooves 1041 evenly arranged on the top surface of the inner cavity of the blow head, and all the grooves 1041 are connected to the outer cooling cavity 101 of the bottle and the middle exhaust cavity 1042, so that the bottle blowing air and the bottle mouth cooling air can be interconnected after completing their corresponding functions, and at the same time, it does not affect the limiting position of the inner cavity top surface of the blow head on the bottle mouth 301.
[0022] As a preferred implementation scheme in this embodiment, it needs to be further explained that the central exhaust cavity 1042 is a circular inner cavity, and the width of each groove 1041 is smaller than the diameter of the central exhaust cavity 1042, which can avoid the groove 1041 being too large to affect the stability of the structure.
[0023] As a preferred implementation scheme in this embodiment, it needs to be further explained that there are four grooves 1041, and the central exhaust cavity 1042 and the four grooves 1041 are assembled into a cross-shaped exhaust groove on the same horizontal plane, which makes the structure opening simpler, the production simpler, and reduces the production cost.
[0024] As a preferred implementation scheme in this embodiment, it needs to be further explained that the outer bottle blowing channel 103 includes an annular bottle blowing channel 1031 opened on the inner wall of the inner cavity of the blowing head, and the outer bottle blowing channel 103 also includes a bottle mouth cooling air inlet channel 1032 opened on the blowing head 1, and the inlet of the bottle mouth cooling air inlet channel 1032 passes through the upper end of the blowing head 1, and the outlet of the bottle mouth cooling air inlet channel 1032 is connected to the annular bottle blowing channel 1031, and the outlet of the annular bottle blowing channel 1031 is aligned with the outer wall of the bottle mouth 301, so that the bottle mouth cooling air has a better cooling effect on the bottle mouth 301.
[0025] As a preferred implementation scheme in this embodiment, it needs to be further explained that the outer bottle blowing channel 103 also includes a bottle wind control plate 1033 arranged in a ring shape, and the bottle wind control plate 1033 is matched and sleeved in the inner cavity of the blowing head, and the outer wall of the bottle wind control plate 1033 is in contact with the inner wall of the inner cavity of the blowing head; a plurality of vents are evenly arranged on the bottle wind control plate 1033, and the inlet of each vent is connected to the annular bottle blowing channel 1031, and the outlet of each vent is aligned with the outer wall of the bottle mouth 301, so that a suitable bottle wind control plate 1033 can be selected according to actual conditions, so as to control the bottle mouth cooling wind in the inner cavity of the blowing head more accurately.
[0026] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A bottle blowing device for balancing internal and external pressures, characterized in that: The invention comprises a blowing head (1) installed at the upper end of a forming mold (2), a blowing head inner cavity is provided in the middle of the lower end of the blowing head (1), the blowing head inner cavity is sleeved outside the bottle mouth (301) of the glass blank (3), the inner top surface of the blowing head inner cavity is in contact with the upper end of the bottle mouth (301), the inner wall of the blowing head inner cavity is spaced apart from the outer wall of the bottle mouth (301), and the two cooperate to form an outer bottle cooling cavity (101); The blowing head (1) is provided with a bottle blowing pipe (102) penetrating the upper and lower ends thereof, the lower end of the bottle blowing pipe (102) is arranged inside the glass blank (3) through the upper end of the bottle mouth (301), so as to inject bottle blowing air into the glass blank (3) through the bottle blowing pipe (102); The blowing head (1) is also provided with an outer bottle blowing channel (103) for injecting bottle mouth cooling air into the outer bottle cooling cavity (101) outside the bottle mouth (301) through the outer bottle blowing channel (103); An exhaust passage (104) is provided on the inner top surface of the inner cavity of the air blowing head, and the exhaust passage (104) is communicated with both the bottle mouth (301) and the cooling cavity (101) outside the bottle.
2. A bottle blowing device for balancing internal and external pressures according to claim 1, characterized in that: The exhaust passage (104) comprises a middle exhaust cavity (1042) opened in the blowing head (1) outside the bottle blowing tube (102), the middle exhaust cavity (1042) being coaxially arranged with the bottle mouth (301), and the inner diameter of the middle exhaust cavity (1042) being smaller than the inner diameter of the bottle mouth (301), and a tail exhaust cavity (1043) penetrating to the outside of the blowing head (1) is opened on one side of the middle exhaust cavity (1042); the exhaust passage (104) further comprises a plurality of grooves (1041) uniformly opened on the top surface of the inner cavity of the blowing head, and all the grooves (1041) are connected to the outer bottle cooling cavity (101) and the middle exhaust cavity (1042).
3. A bottle blowing device for balancing internal and external pressures according to claim 2, characterized in that: The middle exhaust cavity (1042) is a circular inner cavity, and the width of each groove (1041) is smaller than the diameter of the middle exhaust cavity (1042).
4. A bottle blowing device for balancing internal and external pressures according to claim 2 or 3, characterized in that: Four grooves (1041) are provided, and the middle exhaust cavity (1042) and the four grooves (1041) are assembled on the same horizontal plane to form a cross-shaped exhaust groove.
5. A bottle blowing device for balancing internal and external pressures according to any one of claims 1 to 3, characterized in that: The outer bottle blowing channel (103) comprises an annular bottle blowing channel (1031) opened on the inner wall of the inner cavity of the blowing head, and the outer bottle blowing channel (103) further comprises a bottle mouth cooling air inlet channel (1032) opened on the blowing head (1), the inlet of the bottle mouth cooling air inlet channel (1032) passes through the upper end of the blowing head (1), the outlet of the bottle mouth cooling air inlet channel (1032) is connected to the annular bottle blowing channel (1031), and the outlet of the annular bottle blowing channel (1031) is aligned with the outer wall of the bottle mouth (301).
6. A bottle blowing device for balancing internal and external pressures according to claim 5, characterized in that: The bottle outer blowing channel (103) further comprises a bottle wind control plate (1033) arranged in an annular shape, the bottle wind control plate (1033) is matched and sleeved in the inner cavity of the blowing head, and the outer wall of the bottle wind control plate (1033) is in contact with the inner wall of the inner cavity of the blowing head; a plurality of ventilation holes are evenly arranged on the bottle wind control plate (1033), the inlet of each ventilation hole is connected to the annular bottle blowing channel (1031), and the outlet of each ventilation hole is aligned with the outer wall of the bottle mouth (301).