Glass shearing temperature control device

Abstract

The invention discloses a glass material shearing temperature control device which comprises a material bowl, a protection mechanism is arranged at an outlet of the material bowl, the protection mechanism comprises a protection barrel with the inner diameter larger than the caliber of the outlet of the material bowl, scissors capable of horizontally moving are arranged outside the protection barrel, and glass material liquid forms at least two states in the protection barrel by moving the scissors. And the protective cylinder is connected with the heater, is matched with the heater and is used for performing temperature zone isolation on the falling glass material drops. The glass material liquid flows out from the material bowl, the glass material liquid is switched between a first state and a second state by moving the scissors, in the two states, the protective cylinder protects the glass material body, the heater heats the protective cylinder, and a temperature environment similar to the glass material body is simulated. The suspended glass material liquid or glass material drops are located in the channel in the protection cylinder in a temperature zone isolation mode, the heat preservation effect is improved, the outer surface of the glass material body is prevented from being cooled, and the forming quality and the yield of subsequent glass products are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of glass production, in particular to a glass cutting temperature control device. BACKGROUND

[0002] Glassware, glass bottles and cans and other light industrial glass products have a wide range of applications in industry, daily use industry. In the production process of glassware, bottle and can products, a feeder is generally used to form glass liquid into glass drops with uniform weight and shape, and then different shaped glass products are prepared by pressing method, blow-blow method, pressing-blowing method and other processes.

[0003] The first step of forming glassware, glass bottle and can products is to form suitable glass drops. The shape and temperature control precision and consistency of the glass drop forming process are crucial for the quality control of the subsequent glass product forming. In the glass drop forming process, glass material liquid needs to be poured into the material basin, and the glass material liquid flows out from the bottom of the material bowl to form an initial drop shape, and then cut to form a suitable size of glass drop.

[0004] The area where the glass liquid flows out to form the drop is an open area, which is convenient for cutting operation. Since the outlet of the bottom material bowl is exposed to the air, the glass drop is directly exposed to the external environment when it flows out, so the surface of the glass drop is easily cooled. Even after the suction and reheating process of the punch, the temperature uniformity cannot be guaranteed, resulting in unremovable surface defects such as crystallization and stripes in the forming process, which seriously affects the forming quality and product yield. SUMMARY

[0005] The present application provides a glass cutting temperature control device, which can solve the problem of quality defects caused by the difficulty in guaranteeing the temperature uniformity of glass drop formation in the prior art.

[0006] A glass cutting temperature control device, comprising a material bowl, a protection mechanism is arranged at the outlet of the material bowl, the protection mechanism comprises a protection cylinder with an inner diameter larger than the outlet diameter of the material bowl, a movable cutter is arranged outside the protection cylinder, by moving the cutter, the glass liquid forms at least two states in the protection cylinder; In the first state, the circumferential direction and the bottom of the protection cylinder are closed, and the cutter is located outside the protection cylinder, the glass liquid flows out of the material bowl and is in a hanging state in the protection cylinder; In the second state, the protection cylinder is axially penetrated, and the cutter is located inside the protection cylinder and cuts the glass liquid outside the material bowl, so that the hanging glass liquid forms an independent glass drop; The protection cylinder is connected with a heater, and the protection cylinder cooperates with the heater to isolate the temperature zone of the falling glass drop.

[0007] The glass material cutting temperature control device has the following beneficial effects, but is not limited to the following: The glass material cutting temperature control device, glass material liquid flows out from the material bowl, and the glass material liquid is switched between the first state and the second state by moving the scissors. In the two states, the protective cylinder protects the glass material body, the heater heats the protective cylinder, and a temperature environment similar to the glass material body is simulated. The suspended glass material liquid or glass material drop is in the channel inside the protective cylinder through temperature zone isolation, the heat preservation effect is improved, the heat dissipation of the glass material body is reduced, the outer surface of the glass material body is prevented from cooling, the temperature of the glass material drop is more uniform, the material supply quality of the glass material drop is significantly improved, and the forming quality and yield of subsequent glass products are improved.

[0008] The scissors need to be periodically cooled by water spraying during continuous operation. This operation can be performed in the first state, at which time the circumferential and bottom of the protective cylinder are closed, the influence of the water spraying of the scissors is isolated, water mist is prevented from falling on the outer surface of the glass material drop to cause a sudden temperature drop, and the temperature difference of the ambient temperature of the glass material drop due to water mist is prevented, further improving the temperature uniformity of the glass material drop.

[0009] Further, the protective cylinder is a channel structure that is axially through, and the protective cylinder is coaxially arranged with the material bowl.

[0010] Further, a window is formed in the side of the protective cylinder, and the scissors can enter and exit the protective cylinder through the window during movement.

[0011] Further, a liftable sealing side plate is arranged on the side of the protective cylinder, and the sealing side plate is used to open and close the window.

[0012] Further, a horizontally movable sealing bottom plate is arranged at the bottom of the protective cylinder, and the sealing bottom plate is used to adjust the through state of the protective cylinder.

[0013] Further, the heater is a heating wire, and the heating wire is wound on the outer wall of the protective cylinder.

[0014] Further, a material basin is fixedly installed at the top of the material bowl.

[0015] Further, a punch and a rotatable material homogenizer are further included, the punch can reciprocatingly move up and down along the axial direction to make the glass material liquid circulate in a suction, extrusion, and discharge cycle, and the punch is used to provide continuous and quantitative glass material liquid for the material bowl.

[0016] Further, the punch, the material basin, and the material bowl are coaxially arranged.

[0017] Further, the material homogenizer and the punch both extend into the material basin.BRIEF DESCRIPTION OF DRAWINGS BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 Structure diagram of glass cutting temperature control device of one embodiment of the present application; Figure 2 Structure diagram of glass cutting temperature control device of one embodiment of the present application; Figure 3 Structure diagram of protection mechanism of one embodiment of the present application; Figure 4 Structure diagram of protection mechanism connecting driving mechanism of one embodiment of the present application.

[0019] BRIEF DESCRIPTION OF DRAWINGS 1 punch; 2 homogenizer; 3 material basin; 5 material bowl; 6 scissors; 8 protection mechanism; 80 protection cylinder; 81 window; 82 sealing bottom plate; 83 sealing side plate; 9 driving mechanism. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the present application more clear, the technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings which show the embodiments according to the present application. It should be understood that the described embodiments are only a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments described in the present application, all other embodiments obtained by those skilled in the art without creative effort shall fall within the scope of protection of the present application.

[0021] Unless otherwise defined, all technical and scientific terms used in the present application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application; the terms "include", "contain", "have", "with", "contain", "contain" and the like in the specification and claims of the present application and the above description of drawings are open-ended words. Therefore, a method or device "including", "containing", "having" one or more steps or elements has one or more steps or elements, but is not limited to only having the one or more elements. The terms "first", "second" and the like in the specification and claims of the present application or the above description of drawings are used to distinguish different objects, and are not used to describe a specific order or primary and secondary relationship. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more features. In the description of the present application, unless otherwise stated, the meaning of "multiple" is two or more.

[0022] In the description of the present application, it needs to be understood that the terms "upper", "lower", "left", "right", "front", "back" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0023] In the description of the present application, it needs to be understood that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "attaching" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0024] It should be emphasized that when the term "includes / contains" is used in the present specification, it is used to explicitly indicate the presence of the features, integers, steps or components, but does not exclude the presence or addition of one or more other features, integers, steps, components or groups of features, integers, steps, components.

[0025] The term "and / or" in the present application is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B can mean that A exists alone, A and B exist together, and B exists alone. In addition, the character " / " in the present application generally represents that the front and rear associated objects have an "or" relationship.

[0026] Referring to Figures 1-2 As shown in the drawings, the glass material cutting temperature control device provided by the embodiment of the present application comprises a material bowl 5, a protective mechanism 8 is arranged at the outlet of the material bowl 5, the protective mechanism 8 comprises a protective cylinder 80 with an inner diameter larger than the outlet diameter of the material bowl 5, and a cutting tool 6 capable of moving horizontally is arranged outside the protective cylinder 80. By moving the cutting tool 6, the glass material liquid forms at least two states in the protective cylinder 80.

[0027] In the first state, the circumferential direction and the bottom of the protective cylinder 80 are closed, the cutting tool 6 is located outside the protective cylinder 80, the glass material liquid flows out of the material bowl 5, and the glass material liquid is in a hanging state in the protective cylinder 80.

[0028] In the second state, the protective cylinder 80 is axially penetrated, and the cutting tool 6 is located inside the protective cylinder 80 and cuts the glass material liquid outside the material bowl 5, so that the hanging glass material liquid forms independent glass material drops.

[0029] The protection cylinder 80 is connected with the heater, and cooperates with the heater to isolate the glass material drops in the temperature zone.

[0030] In the embodiment, the glass material liquid flows out from the material bowl 5, and the glass material liquid is switched between the first state and the second state by the horizontal movement of the scissors 6. In the two states, the protection cylinder 80 protects the glass material body. The heater heats the protection cylinder 80 to simulate a temperature environment similar to the glass material body. The suspended glass material liquid or glass material drops are in the channel inside the protection cylinder 80 by the temperature zone isolation, the heat preservation effect is improved, the heat dissipation of the glass material body is reduced, the outer surface of the glass material body is prevented from cooling, the temperature of the glass material drops is more uniform, the feeding quality of the glass material drops is significantly improved, and the forming quality and the yield of the subsequent glass product are improved.

[0031] During the continuous operation, the scissors 6 need to be periodically cooled by water spraying. The operation can be performed in the first state, in which the circumferential surface and the bottom of the protection cylinder 80 are closed, the influence of the water spraying of the scissors 6 is isolated, the temperature of the glass material drops is prevented from being suddenly reduced due to the water mist falling on the outer surface of the glass material drops, and the temperature difference of the ambient temperature of the glass material drops due to the water mist is prevented, and the temperature uniformity of the glass material drops is further improved.

[0032] Optionally, as shown in Figures 2-3 The protection cylinder 80 is coaxially arranged with the material bowl 5.

[0033] In the embodiment, the axial through of the protection cylinder 80 is beneficial to the smooth falling of the glass material drops. By coaxially arranging the above-mentioned components, the glass material drops can always drop in the axial direction, and the glass material drops are prevented from adhering to the inner wall of the protection cylinder 80 during the falling process.

[0034] Optionally, as shown in Figure 3 The side of the protection cylinder 80 is provided with a window 81, and the scissors 6 can enter and exit the protection cylinder 80 through the window 81 during the movement.

[0035] In the embodiment, the window 81 not only has the function of allowing the scissors 6 to enter, but also realizes the smooth movement of the scissors 6 under the premise of ensuring the heat preservation and isolation of the protection cylinder 80, and takes into account the protection and process synergy of the protection cylinder 80. Specifically, the window 81 has three core functions, as follows. Specifically, first, the window 81 as a dedicated channel for the cutting action can ensure accurate cutting. The primary role of the window 81 is to provide the only channel for the scissors 6 to extend into the interior of the protective cylinder 80. After the glass material droplet is formed in the protective cylinder 80, the scissors 6 need to accurately reach the cutting position below the outlet of the material bowl 5 to cut out glass material droplets of uniform size and shape. The size and position of the window 81 need to be accurately designed based on actual needs to completely match the opening and closing amplitude and motion trajectory of the scissors 6, so as to avoid collision and wear between the scissors 6 and the inner wall of the protective cylinder 80, and to enable the scissors 6 to accurately act on the glass material liquid, ensuring stable and reliable cutting action and laying a foundation for subsequent glass material droplet forming.

[0036] Second, the window 81 can balance the sealing and operability and reduce heat loss. One of the core functions of the protective cylinder 80 is to isolate external air and reduce internal heat loss, and the window 81 as an opening on the protective cylinder 80 balances the operation demand and the sealing demand in design. Compared with the open environment without sealing state adjustment, the window 81 only forms an opening in the local area where the scissors 6 extends into, and the opening area is much smaller than the open space, which can effectively reduce the air convection between the interior of the protective cylinder 80 and the outside, and reduce the heat loss of the suspended glass material liquid. At the same time, the window 81 is only occupied by the scissors 6 at the moment of cutting, and the rest of the time can be closed through the circumferential sealing of the protective cylinder 80, further strengthening the heat preservation effect and avoiding the failure of the heat preservation function of the protective cylinder 80 due to the opening.

[0037] Third, the window 81 can also isolate external interference and ensure the purity and temperature stability of the glass material droplet. The window 81 also plays an auxiliary role as a isolation barrier. On the one hand, after the cutting of the scissors 6 is completed, water or scissors liquid needs to be sprayed or applied for cooling, and the edge of the window 81 can block the cooling water flow and water vapor from splashing into the interior of the window 81, avoiding the contact of the water flow with the glass material liquid. It not only prevents the temperature of the glass material liquid from dropping sharply, but also avoids the water vapor from causing surface defects such as bubbles and cracks on the surface of the material droplet. On the other hand, the window 81 can block the airflow and dust-like external impurities in the external environment (in the operation workshop) from entering the interior of the protective cylinder 80, avoiding the impurities from adhering to the surface of the high-temperature glass material blank, ensuring the purity of the glass material droplet and reducing the apparent defects of the subsequent formed product.

[0038] Optionally, referring to Figures 2-4 It is shown that the side of the protective cylinder 80 is provided with a sealable side plate 83 which is used to open and close the window 81. The bottom of the protective cylinder 80 is provided with a sealable bottom plate 82 which is used to adjust the through state of the protective cylinder 80. The sealable side plate 83 and the sealable bottom plate 82 are both connected to the driving end of a driving mechanism 9, and the driving mechanism 9 includes but is not limited to a linear motor and a pneumatic cylinder. The driving mechanism 9 is used to drive the sealable side plate 83 to move up and down and the sealable bottom plate 82 to move horizontally.

[0039] In this embodiment, the movement of the sealing side plate 83 and the sealing bottom plate 82 can be linked with the movement of the shears 6. The sealing side plate 83 and the sealing bottom plate 82 are closed during the shearing interval and are opened synchronously when shearing, thereby enhancing the space isolation and heat preservation effect. When the shears 6 perform the shearing operation, the sealing side plate 83 moves downward to expose the window 81 completely, and the sealing bottom plate 82 moves horizontally to the bottom of the protection cylinder 80 to form a completely open shape. After the shearing is completed, the sealing side plate 83 and the sealing bottom plate 82 are reset, so that the circumferential and bottom of the protection cylinder 80 are closed. The sealing side plate 83 and the sealing bottom plate 82 can further improve the sealing and isolation effect of the protection cylinder 80, and isolate the influence of the ambient temperature and the water spraying of the shears 6 on the temperature of the glass liquid.

[0040] Optionally, the heater is a heating wire, and the heating wire is arranged on the outer wall of the protection cylinder 80.

[0041] In this embodiment, the heating wire assists in raising the temperature of the internal space of the protection cylinder 80, improves the temperature control level of the glass material drop, improves the temperature uniformity of the glass material drop, and effectively isolates the influence of environmental changes on the temperature of the glass material drop.

[0042] Optionally, as shown in Figures 1-2 , the material bowl 5 is fixedly installed on the top of the material basin 3.

[0043] In this embodiment, the material basin 3 provides a sufficient accommodation space for the glass material liquid, facilitates subsequent timely replenishment of the material bowl 5, and facilitates subsequent continuous formation of the glass material drop.

[0044] Optionally, as shown in Figures 1-2 , the punch 1 and the rotatable material homogenizer 2 are further included. The punch 1 can move up and down along the axial direction to realize the circulation of suction, extrusion and discharge of the glass material liquid, so as to provide continuous and quantitative glass material liquid for the material bowl 5. The material homogenizer 2 includes but is not limited to a stirring paddle, a stirring rod and a stirring cylinder, and preferably a stirring cylinder, which can also be referred to as a material homogenizing cylinder.

[0045] In this embodiment, the material homogenizer 2 is connected to an external motor, and the motor drives the material homogenizer 2 to rotate, so as to stir and mix the glass material liquid in the material basin 3, so that the temperature of the glass material liquid is more uniform. The action of the punch 1 is coordinated with the heat preservation, temperature control and stable drop depth of the protection cylinder 80, and can be divided into three core dimensions, which directly affects the forming quality of the glass material drop and the subsequent process stability.

[0046] Firstly, the punch 1 can realize precise circulation regulation and control of the glass material liquid, and lay the foundation for the formation of the material drop. The punch 1 moves up and down along the axial direction to realize the circulation of suction, extrusion and discharge of the glass material liquid at the outlet of the material bowl 5. The essence is to provide continuous and quantitative glass liquid supply for the material bowl 5.

[0047] Suction feeding: When the scissors 6 complete a cutting, the punch 1 goes up, and the relatively uniform glass frit liquid in the basin 3 is sucked into the bowl 5 by the negative pressure formed in the basin 3, supplementing the glass frit liquid lost at the outlet of the bowl 5 due to cutting, and avoiding the formation of abnormal glass frit drop shapes due to insufficient glass liquid in the bowl 5.

[0048] Quantitative discharge: When the punch 1 goes down, the glass frit liquid in the basin 3 is squeezed downward by controllable pressure, so that it flows out of the outlet of the bowl 5 at a stable rate, forming a hanging glass frit liquid with uniform thickness and consistent length. This step is a prerequisite for the scissors 6 to cut out glass frit drops with uniform weight and regular shape. If the punch 1 stroke and speed are out of control, it will directly lead to weight deviation of the glass frit drops, causing subsequent forming defects.

[0049] Secondly, the punch 1 cooperates with the protection mechanism 8 to assist in improving the uniformity of the glass liquid temperature, making up for the defects of the prior art. In combination with the pain points of glass frit liquid exposure cooling and temperature unevenness to be solved by the present application, the cyclical action of the punch 1 and the protection mechanism 8 form a temperature control synergy.

[0050] Recycling and cooling glass liquid: In the prior art, the glass frit liquid at the outlet of the bowl 5 is easily cooled by exposure to air, while the suction action of the punch 1 can reabsorb the slightly cooled glass frit liquid at the outlet of the bowl 5 back into the basin 3, mix it with the glass frit liquid in the basin 3 which has a higher and more uniform temperature, reduce the local low-temperature area, and avoid the temperature stratification caused by the cooled glass frit liquid directly forming glass frit drops.

[0051] Strengthening temperature control with the protection mechanism 8: The protection mechanism 8 reduces heat dissipation by isolating the environment and insulating the protection cylinder 80, while the cyclical action of the punch 1 can further promote the flow and mixing of the glass frit liquid in the closed space, avoiding the formation of a temperature difference between the upper cold and lower hot layers of the glass frit liquid due to long-term static placement in the bowl 5. The combination of the two makes the temperature uniformity of the glass frit liquid more significant, reducing crystallization and stripe defects from the source.

[0052] It should be noted that the punch 1 can also stabilize the shape of the hanging glass frit liquid, and the protection mechanism 8 can guide the falling of the glass frit drops. The protection cylinder 80 in the protection mechanism 8 has the function of a material falling pipe, which can stabilize the falling direction of the glass frit drops, while the punch 1 ensures the stability of the shape of the glass frit drops from the upstream, and the two together improve the process stability. The moving speed and stroke of the punch 1 can be accurately controlled by the connected external equipment, ensuring that the glass frit liquid flows out of the bowl 5 in a continuous and uniform hanging state. If the punch 1 action is unstable (such as moving too fast causing the hanging glass frit liquid to be too thick, or moving too slowly causing the hanging glass frit liquid to be too thin), even if the protection cylinder 80 can guide the material falling, the shape of the hanging glass frit liquid itself will be abnormal, leading to large weight deviation and irregular shape of the glass frit drops after being cut by the scissors 6, and the subsequent bottle machine forming is prone to problems such as uneven wall thickness and bottle mouth deformation.

[0053] The punch 1 cooperates with the protection mechanism 8 to realize the whole-process control of stable generation of glass droplets, accurate cutting of glass droplets, and stable falling of glass droplets, thereby effectively improving the forming quality and process stability of a subsequent bottle forming machine.

[0054] Optionally, the punch 1, the material basin 3, and the material bowl 5 are coaxially arranged. The material distributor 2 and the punch 1 both extend into the material basin 3.

[0055] In this embodiment, the material basin 3 is located at the end of the entire glass supply channel. Through the joint action of the material basin 3, the material distributor 2, and the material bowl 5, the glass liquid is controlled to flow out to form glass droplets. The heat preservation below the material basin 3 and the material bowl 5 is poor, and the temperature of the glass liquid is difficult to control. At the same time, during the interval time of cutting by the scissors 6, the glass liquid at the outlet of the material bowl 5 is directly exposed to the air environment. Even if the punch 1 is used to suck back to the material basin 3 for reheating, it is also easily cooled and cooled. In addition, in order to maintain the service life of the scissors 6, the scissors 6 need to be cooled by water or scissors liquid after cutting, which further causes heat loss below the material basin 3 and the material bowl 5, resulting in the temperature non-uniformity of the glass droplets being aggravated, especially the temperature difference between the upper and lower parts of the droplets being the largest, which affects the forming quality of the droplets in the bottle forming machine. Therefore, the protection mechanism 8 can solve the above problems, which has been described in detail in the foregoing, and will not be repeated here.

[0056] In some practical applications, those skilled in the art will directly align the outlet of the material bowl 5 with the subsequent mold cavity, effectively reducing the falling path of the glass droplets, and naturally being less affected by the external environment temperature.

[0057] The inventor needs to emphasize that in the production of glass droplets, even if the outlet of the material bowl 5 is directly aligned with the mold cavity to shorten the falling distance, the quality defects caused by the poor temperature uniformity when the glass droplets are formed still cannot be solved. The core reason is that shortening the falling distance can only solve the heat dissipation during the falling process of the glass droplets, but cannot cover the key temperature loss link before the glass droplets are formed and external interference factors. The core value of the protection mechanism 8 is to make up for these pain points that cannot be solved by shortening the distance. The three dimensions can be analyzed as follows.

[0058] Firstly, the pre-heating problem of the cutting interval is the main source of temperature unevenness (shortening the distance cannot solve it). The temperature loss of glass droplets does not only occur during the falling process, but more importantly, the exposed pre-heating of the glass liquid at the outlet of the material bowl 5, which is the core problem of the uneven temperature of the glass droplets in the actual operation process. In production, the scissors 6 need to be cut at a fixed cycle (such as every 2-5 seconds, depending on the machine speed), and during the interval between two cuts, the outlet of the material bowl 5 is always exposed to the air. At this time, even if the outlet of the material bowl 5 is adjacent to the mold, the exposed glass liquid will still exchange heat with the air, causing the surface to cool rapidly, especially when the operating workshop environment temperature is lower than the glass liquid temperature, the heat dissipation rate will be faster.

[0059] The protection mechanism 8 of the present application covers the outlet of the material bowl 5 and the cutting area, and forms a closed space through the protection cylinder 80 + sealing bottom plate 82 + sealing side plate 83 during the interval, directly isolating the glass liquid at the outlet of the material bowl 5 from the air, reducing the heat dissipation during the interval from the source, which cannot be achieved by shortening the distance. Shortening the distance only changes the length of the glass liquid droplet falling path, but cannot make the glass liquid at the outlet of the material bowl 5 escape from the air environment during the interval.

[0060] Secondly, the additional heat dissipation interference of the scissors 6 cooling needs to be physically isolated (shortening the distance cannot be avoided). In the prior art, the scissors 6 need to be cooled by spraying water or applying scissors liquid after cutting, which will directly increase the heat loss in the area below the material bowl 5. This interference cannot be solved by shortening the distance, but may cause the cooling water flow / water vapor to affect the mold temperature due to the close proximity of the material bowl 5 and the mold cavity. Without the protection mechanism 8, the water flow and water vapor during the cooling of the scissors 6 will directly contact the glass liquid at the outlet of the material bowl 5, not only causing the glass liquid to cool further, but also causing the temperature of the outer wall of the material bowl 5 to fluctuate, indirectly affecting the temperature stability of the internal glass liquid.

[0061] The cylindrical structure of the protection cylinder 80 can form a physical barrier to isolate the cooling area of the scissors 6 from the glass liquid at the outlet of the material bowl 5, that is, the scissors 6 extend into the cutting from the window 81, and the cooling operation is performed outside the protection cylinder 80. The water flow and water vapor are blocked by the protection cylinder 80 and cannot touch the internal glass liquid and the outlet of the material bowl 5, avoiding additional heat dissipation interference. Shortening the distance cannot form such isolation, and may even cause the cooling interference to spread to the mold area due to the close proximity of the equipment, affecting the forming quality.

[0062] Thirdly, the need for active regulation of the temperature uniformity of the glass frit droplet requires the cooperation of the protective cylinder 80 and the heating wire to bear (shorten the distance without temperature control capability). Shortening the distance can only passively reduce the heat dissipation time, but cannot actively regulate the temperature of the glass frit droplet. Higher quality glass products, especially in heavy glass frit, low machine speed working conditions, require precise temperature control and are more dependent on the temperature controllable space provided by the protective cylinder 80.

[0063] The protective cylinder 80 of the present embodiment can actively control the temperature in two ways. The protective cylinder 80 is made of high-temperature-resistant, low-thermal-conductivity material (such as ceramic), which reduces the loss of internal heat to the outside, forming passive insulation. The outer wall of the protective cylinder 80 is wrapped with resistance wire, which actively supplements the heat in the enclosed space and accurately maintains the target temperature of the glass frit liquid / glass frit droplet. These functions all need an enclosed space as a carrier, and the open environment of the mold directly aligned with the material bowl 5 cannot be achieved. In an open environment, heat will quickly spread to all directions, and the heat provided by the resistance wire will also be carried away by the air, and a stable temperature control interval cannot be formed.

[0064] In addition, for heavy glass frit, low machine speed working conditions, which are the focus of the application, in this working condition, the glass frit droplet has a large volume and a long forming period, and the requirement for temperature uniformity is higher. Relying solely on shortening the falling distance cannot solve the surface cooling and internal temperature difference of the glass frit during the cutting interval. The protective mechanism 8 can keep the glass frit droplet in a state of uniform internal and external temperature when it enters the mold cavity through insulation + active temperature control, thereby fundamentally reducing the crystallization and stripe defects.

[0065] The above disclosure is only a few specific embodiments of the present application, but the embodiments of the present application are not limited thereto, and any changes that can be thought of by those skilled in the art should fall within the scope of the present application.

Claims

1. A glass cutting temperature control device, characterized by, The application relates to a glass material feeding device, which comprises a material bowl (5) provided with a protection mechanism (8) at the outlet of the material bowl (5), the protection mechanism (8) comprising a protection cylinder (80) with an inner diameter larger than the outlet diameter of the material bowl (5), and a horizontally movable shears (6) arranged outside the protection cylinder (80), by moving the shears (6), the glass material liquid forms at least two states in the protection cylinder (80); in the first state, the circumferential surface and the bottom of the protection cylinder (80) are closed, the shears (6) are located outside the protection cylinder (80), the glass material liquid flows out of the material bowl (5) and is in a hanging state in the protection cylinder (80); in the second state, the protection cylinder (80) is axially penetrated, and the shears (6) are located inside the protection cylinder (80) and cut the glass material liquid outside the material bowl (5), so that the hanging glass material liquid forms independent glass material drops; the protection cylinder (80) is connected with a heater, and the protection cylinder (80) cooperates with the heater to isolate the falling glass material drops in temperature zones.

2. The glass sheet temperature control apparatus of claim 1, wherein The protection cylinder (80) is in a channel structure axially penetrated, and the protection cylinder (80) is coaxially arranged with the material bowl (5).

3. The glass sheet temperature control apparatus of claim 2, wherein, Windows (81) are arranged on the side edges of the protection cylinder (80), and the shears (6) can enter and exit the protection cylinder (80) through the windows (81) in the moving process.

4. The glass sheet temperature control apparatus of claim 3, wherein, Liftable sealing side plates (83) are arranged on the side edges of the protection cylinder (80), and the sealing side plates (83) are used for opening and closing the windows (81).

5. The glass sheet temperature control apparatus of claim 2, wherein, A horizontally movable sealing bottom plate (82) is arranged at the bottom of the protection cylinder (80), and the sealing bottom plate (82) is used for adjusting the penetration state of the protection cylinder (80).

6. The glass sheet temperature control apparatus of claim 1, wherein, The heater is a heating wire, and the heating wire is arranged on the outer wall of the protection cylinder (80).

7. The glass sheet temperature control apparatus of claim 1, wherein, A material basin (3) is fixedly arranged on the top of the material bowl (5).

8. The glass sheet temperature control apparatus of claim 7, wherein, The device further comprises a punch (1) and a rotatable material homogenizer (2), the punch (1) can move up and down along the axial direction to realize the circulation of suction, extrusion and discharge of the glass material liquid, and the punch (1) is used for providing continuous and quantitative glass material liquid for the material bowl (5).

9. The glass sheet temperature control apparatus of claim 8, wherein, The punch (1), the material basin (3) and the material bowl (5) are coaxially arranged.

10. The glass sheet temperature control apparatus of claim 8, wherein the temperature control apparatus is configured to control the temperature of the glass sheet to a temperature of about 200 °C to about 400 °C. The punch (1) and the material homogenizer (2) both extend into the material basin (3).

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