Automatic feeding device for glass bead production

Abstract

The invention relates to an automatic feeding device for glass bead production, which belongs to the field of raw material transportation devices and comprises: a mounting frame, a rotating bucket, a storage hopper, a first feeding belt and a shaking machine, wherein the mounting frame is connected to the top of glass secondary melting equipment; the rotating bucket is rotatably connected to the mounting frame, and the rotating bucket centrifugally screens glass raw materials of different sizes by rotation; the storage hopper is connected to the mounting frame and is used for adding and storing glass raw materials and feeding them into the rotating hopper; the first feeding belt receives the glass raw materials discharged from the bottom of the storage hopper and conveys the glass raw materials to a preset point on the inner side inclined surface of the rotating hopper; the shaking machine receives the glass raw materials discharged from the lower end of the rotating hopper and shakes the glass raw materials and adds them into the glass secondary melting equipment; the shaking machine can solve the technical problem in the prior art that a screw conveyor cannot stably feed large-diameter glass raw materials, thereby reducing the yield rate of glass secondary melting and molding.

Description

Technical Field

[0001] The invention belongs to the field of raw material transportation devices, and in particular relates to an automatic feeding device for glass bead production. Background Art

[0002] Energy-saving lighting in tunnels requires glass beads with different refractive indices. During the production process of glass beads, the raw materials need to be initially melted, crushed, screened, and then melted again to make glass beads of different particle sizes.

[0003] The existing patent with application number 202120755292.5 discloses a feeding device for glass microbead production. It includes a base, a screw conveyor with a feed port and a discharge port is connected to the base, a storage hopper is fixedly connected to the feed port of the screw conveyor; a buffer box is fixedly connected to the discharge port of the screw conveyor, a dispersion box is fixedly connected to the inner cavity of the buffer box, multiple groups of through holes are opened on the dispersion box, and a discharge port connected to the inner cavity of the dispersion box is opened on the buffer box; a blower and a ventilation pipe are connected to the buffer box; a stirring structure is arranged in the inner cavity of the storage hopper, and a stirring drive structure for driving the stirring structure to rotate is connected to the storage hopper.

[0004] The technologies represented by the above-mentioned prior art generally have the following problems:

[0005] When using a screw conveyor, it is impossible to stably feed raw materials with a particle size of 8mm. Large-particle glass raw materials cause greater wear and tear on the equipment due to their larger size and heavier weight, especially on the spiral blades, bearings and other parts of the variable frequency screw conveyor. This will generate greater friction and impact force, leading to increased wear of the equipment, and thus making it impossible to stably feed the materials, reducing the yield rate of secondary melting and molding of glass. Summary of the invention

[0006] The invention provides an automatic feeding device for glass bead production, which can solve the technical problem in the prior art that a screw conveyor cannot stably feed large-diameter glass raw materials, thereby reducing the yield rate of glass secondary melting and molding.

[0007] In order to achieve the above object, the present invention is implemented by the following technical solutions:

[0008] The present application provides an automatic feeding device for glass bead production, which includes a mounting frame, a rotating bucket, a storage hopper, a first conveyor belt and a material shaker, wherein the mounting frame is connected to the top of a glass secondary melting device; the rotating bucket is rotatably connected to the mounting frame, and the rotating bucket centrifugally screens glass raw materials of different sizes by rotation; the storage hopper is connected to the mounting frame, and is used to add and store glass raw materials and feed them into the rotating hopper; the first conveyor belt receives the glass raw materials discharged from the bottom of the storage hopper, and transports the glass raw materials to a preset point on the inner inclined surface of the rotating hopper; the material shaker receives the glass raw materials discharged from the lower end of the rotating hopper, and shakes the glass raw materials and adds them into the glass secondary melting device.

[0009] Through the above technical scheme, the use of a rotating bucket to screen the glass raw materials by size can improve the uniformity of the particle size of the final feeding, and then the shaking machine can stably feed the materials under the same power, and can feed the materials more stably, thereby improving the yield rate of secondary melting and molding of glass beads production.

[0010] In the present invention, the automatic feeding device further comprises a cracking bin, the cracking bin cover is arranged above the first conveyor belt, and the cracking bin is provided with a high temperature zone, a heating zone, a cooling zone and a fan in sequence along the conveying direction of the first conveyor belt;

[0011] The cooling zone is connected to a semiconductor refrigeration sheet, the cold surface of the semiconductor refrigeration sheet faces the first conveyor belt, the hot surface of the semiconductor refrigeration sheet is connected to a heat sink, the fan inhales air and passes the air through the heat sink, and the air heated by the heat sink is blown toward the heating zone;

[0012] The heating zone has a heating tube, which further heats the air passing through the heat sink;

[0013] The high temperature zone is provided with an opening in the direction of the first conveyor belt, and the air heated by the heating tube is blown toward the glass raw materials on the first conveyor belt through the opening.

[0014] Through the above technical scheme, the glass raw materials on the first conveyor belt are further crushed by alternating hot and cold methods, and the unmelted sand and gravel mixed in the glass during initial melting are exposed and separated, thereby improving the purity of the glass raw materials and further improving the yield rate of glass beads production.

[0015] In the present invention, the above-mentioned automatic loading device also includes a material guide trough, a material guide sheet and a slag trough. The material guide trough is connected to the mounting frame, one end of the material guide trough faces the first conveyor belt, and the other end faces the rotating bucket; the material guide sheet is inserted into the end of the material guide trough facing the first conveyor belt, and adjusting the distance between the material guide sheet and the first conveyor belt can prevent impurities and small glass fragments from entering the material guide trough; the slag trough is connected to the mounting frame, and the slag trough is arranged at the end of the first conveyor belt facing the material guide sheet.

[0016] Through the above technical solution, an adjustable guide plate is used. By changing the distance between the guide plate and the first conveyor belt, small particles of sand and gravel and fine glass debris are screened out to prevent the sand and gravel from affecting the yield rate of glass bead production. At the same time, it also prevents the glass debris from mixing into the rotating bucket and affecting the friction of the glass raw materials, further increasing the stability of the feeding device.

[0017] In the present invention, the above-mentioned material guide trough has a gathering section and a discharge section, the gathering section faces the first conveyor belt, and the discharge section faces the inner inclined surface of the rotating bucket. The cross-section of the gathering section gradually changes from a straight line to a V-shape, and the cross-section of the discharge section is V-shaped.

[0018] Through the above technical solution, a variable diameter gathering section is used to gather the scattered glass raw materials on the first feeding belt, and then the V-shaped cross-section discharge section can more accurately deliver the glass raw materials to the preset position of the inclined surface of the rotating bucket, thereby obtaining an accurate size screening effect.

[0019] In the present invention, the above-mentioned automatic loading device also includes: a material receiving trough, a second material conveyor belt and a third material conveyor belt. The material receiving trough is arranged on the outside of the rotating bucket to receive the glass raw materials discharged from the top of the rotating bucket; the second material conveyor belt and the third material conveyor belt transport the glass raw materials in the material receiving trough back to the storage hopper.

[0020] Through the above technical scheme, a receiving trough is used to receive the large pieces of glass raw materials thrown out by the rotating bucket, and then the large pieces of glass raw materials are sent back to the storage hopper through the horizontal second conveyor belt and the stepped third conveyor belt, and further cracked into small pieces of glass raw materials through rapid cooling and rapid heating.

[0021] In the present invention, the automatic feeding device further comprises a rubber brush connected to a side of the rotating bucket facing the material receiving trough, and the rubber brush brushes the glass raw materials in the material receiving trough driven by the rotation of the rotating bucket.

[0022] Through the above technical solution, a rubber brush is used to improve the mobility of large glass raw materials in the receiving trough, avoid the problem of material jamming and material piling in the receiving trough, and improve the stability of device operation.

[0023] In the present invention, the automatic feeding device further includes a varistor, and the varistor is in contact with the bottom surface of the shaking machine.

[0024] Through the above technical scheme, varistors are used to identify the gravity changes caused by the glass raw materials falling into the shaker, as well as the gravity changes after the materials are shaken into the furnace. After filtering out the gravity changes caused by the shaker itself when idling, the accurate glass raw material feeding rate is obtained, thereby further improving the feeding stability of the secondary melting. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 An axonometric diagram of an automatic feeding device for glass bead production provided by an embodiment of the present invention;

[0027] Figure 2 A front view of an automatic feeding device for glass bead production provided by an embodiment of the present invention;

[0028] Figure 3 for Figure 2 Sectional view at AA in the figure;

[0029] Figure 4 for Figure 3 A local enlarged view of point C in FIG.

[0030] Figure 5 for Figure 3 A local enlarged view of point D in FIG.

[0031] Figure 6 for Figure 2 The cross-sectional view at BB in FIG.

[0032] Figure 7 for Figure 6 A local enlarged view of point E in FIG.

[0033] Figure 8 A side view of an automatic feeding device for glass bead production provided by an embodiment of the present invention;

[0034] Fig. 9 for Figure 8 The sectional view at FF in FIG.

[0035] Fig.10 for Fig. 9 A local enlarged view of point G in FIG.

[0036] Fig.11 An exploded view of an automatic feeding device for glass bead production provided in an embodiment of the present invention.

[0037] Icons: 1-storage hopper; 2-rotating hopper; 201-motor; 202-gear ring; 204-receiving trough; 2041-leakage hole; 2042-brush; 205-bearing; 3-shaker; 301-varistor; 4-first conveyor belt; 401-guide trough; 4011-gathering section; 4012-discharging section; 402-slag trough; 403-guide sheet; 5-cracking chamber; 501-high temperature zone; 502-heating zone; 5021-heating tube; 503-cooling zone; 5031-semiconductor refrigeration sheet; 5032-heat sink; 504-fan; 6-mounting frame; 7-second conveyor belt; 8-third conveyor belt. DETAILED DESCRIPTION

[0038] The embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0039] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application 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 application.

[0040] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0041] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be welding, bolt connection, or riveting; it can be fixed connection, detachable connection, or integral connection; it can be mechanical connection or electrical connection; it can be directly connected or indirectly connected through an intermediate medium, or it can be internal communication between two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0042] Example:

[0043] Please refer to Figures 1 to 11 , Figures 1 to 11 An embodiment of the present application is shown.

[0044] This embodiment provides an automatic feeding device for glass bead production, such as Figure 1 and Figure 2 As shown, it includes a mounting frame 6, a rotating bucket 2, a storage hopper 1, a first conveyor belt 4 and a material shaking machine 3, and the mounting frame 6 is connected to the top of the glass secondary melting equipment; Figure 6 and Figure 7 As shown, the rotating bucket 2 is rotatably connected to the mounting frame 6 through the bearing 205, and the gear ring 202 welded to the outer side of the rotating bucket 2 is driven by the motor 201. The rotating bucket 2 centrifugally screens glass raw materials of different sizes by rotation; the storage hopper 1 is connected to the mounting frame 6, and is used to add and store glass raw materials and feed them into the rotating bucket 2; the first conveyor belt 4 receives the glass raw materials discharged from the bottom of the storage hopper 1, and conveys the glass raw materials to the preset point on the inner inclined surface of the rotating bucket 2; the shaking machine 3 receives the glass raw materials discharged from the lower end of the rotating bucket 2, and shakes the glass raw materials and adds them into the glass secondary melting equipment.

[0045] When in use, for example, the inner slope angle of the rotating bucket 2 is 40 degrees, the rotation angular velocity The rotation radius of the glass raw material input point is 10rad / s. The rotating bucket 2 adopts a stainless steel slope, and the friction coefficient between stainless steel and glass is is 0.4-0.6, and a 10g piece of glass raw material a and a 5g piece of glass raw material b are respectively put in through the first conveyor belt 4:

[0046] 1. Calculate gravity:

[0047] ;

[0048] ;

[0049] 2. Calculate positive pressure:

[0050] ;

[0051] ;

[0052] ;

[0053] 3. Calculate friction:

[0054] ;

[0055] ;

[0056] 4. Calculate centrifugal force:

[0057] ;

[0058] ;

[0059] 5. Calculate the centrifugal force component along the inclined plane:

[0060] ;

[0061] ;

[0062] ;

[0063] 6. Analyze the component of gravity along the inclined plane:

[0064] ;

[0065] ;

[0066] 7. Determine the direction of movement:

[0067] For 10g of glass raw material a, because , so the glass raw material a with a mass of 10g slides upward along the inclined surface.

[0068] For 5g of glass raw material b, because , so the glass raw material b with a mass of 5g slides downward along the inclined surface.

[0069] Based on the above exemplary calculations, there is a critical angular velocity and rotation radius (and the landing point of the glass raw materials) for glass raw materials of different weights. The glass raw materials with large mass move up along the inclined surface of the rotating bucket 2 and fly out, while the glass raw materials with small mass slide down along the inclined surface of the rotating bucket 2 and fall into the shaking machine 3.

[0070] It should be noted that the above calculation is only a theoretical calculation. In actual use, a physical simulation is required to determine the appropriate feeding position and the rotation speed of the rotating bucket 2 according to the quality of the glass raw materials to be screened, which will not be described in detail here.

[0071] Through the above technical scheme, the use of the rotating bucket 2 to size-screen the glass raw materials can improve the uniformity of the particle size of the final feeding, and then the shaking machine 3 can stably feed the materials under the same power, and can feed the materials more stably, thereby improving the yield rate of secondary melting and molding of glass beads.

[0072] As a preferred implementation method, Figure 1 As shown, the automatic feeding device further comprises a cracking chamber 5, which is covered above the first conveyor belt 4. Figure 4As shown, the cracking chamber 5 is provided with a high temperature zone 501, a heating zone 502, a cooling zone 503 and a fan 504 in sequence along the feeding direction of the first feeding belt 4;

[0073] The cooling zone 503 is connected to a semiconductor cooling sheet 5031, the cold surface of the semiconductor cooling sheet 5031 faces the first conveyor belt 4, and the hot surface of the semiconductor cooling sheet 5031 is connected to a heat sink 5032. The fan 504 inhales air and passes the air through the heat sink 5032, and the air heated by the heat sink 5032 is blown toward the heating zone 502.

[0074] The heating zone 502 has a heating tube 5021, which further heats the air passing through the heat sink 5032;

[0075] The high temperature zone 501 is provided with an opening in the direction toward the first conveyor belt 4 , and the air heated by the heating tube 5021 is blown toward the glass raw materials on the first conveyor belt 4 through the opening.

[0076] Through the above technical scheme, the glass raw materials on the first conveyor belt are further crushed by alternating hot and cold methods, and the unmelted sand and gravel mixed in the glass during initial melting are exposed and separated, thereby improving the purity of the glass raw materials and further improving the yield rate of glass beads production.

[0077] As a preferred implementation method, Figures 1 to 3 As shown, the above-mentioned automatic feeding device also includes a guide trough 401, a guide sheet 403 and a slag trough 402. The guide trough 401 is connected to the mounting frame 6 through an adjustable bracket. One end of the guide trough 401 faces the first conveyor belt 4, and the other end faces the rotating bucket 2; Figure 5 As shown, the guide piece 403 is inserted into the lower through groove of the guide trough 401 at one end facing the first conveyor belt 4, and is tightened by screws. The distance between the guide piece 403 and the first conveyor belt 4 can be adjusted to prevent impurities and small glass fragments from entering the guide trough 401; the slag trough 402 is connected to the mounting frame 6, and the slag trough 402 is arranged at one end of the first conveyor belt 4 facing the guide piece 403.

[0078] Through the above technical solution, an adjustable guide plate 403 is used. By changing the distance between the guide plate 403 and the first conveyor belt 4, small particles of sand and gravel and fine glass debris are screened out to prevent the sand and gravel from affecting the yield rate of glass bead production. At the same time, it also prevents the glass debris from mixing into the rotating bucket 2 to affect the friction of the glass raw materials, further increasing the stability of the feeding device.

[0079] As a preferred implementation method, Figure 1As shown, the above-mentioned material guide trough 401 has a gathering section 4011 and a discharge section 4012. The gathering section 4011 faces the first conveyor belt 4, and the discharge section 4012 faces the inner inclined surface of the rotating bucket 2. The cross-section of the gathering section 4011 gradually changes from a straight line to a V-shape, and the cross-section of the discharge section 4012 is V-shaped.

[0080] Through the above technical solution, the scattered glass raw materials on the first conveyor belt 4 are gathered by using the variable diameter gathering section 4011, and then the glass raw materials can be more accurately delivered to the preset position of the inclined surface of the rotating bucket 2 through the V-shaped cross-section discharge section 4012, thereby obtaining an accurate size screening effect.

[0081] As a preferred implementation method, Figure 1 , Figure 8 , Fig. 9 as well as Fig.11 As shown, the above-mentioned automatic loading device also includes: a material receiving trough 204, a second material conveyor belt 7 and a third material conveyor belt 8. The material receiving trough 204 is arranged on the outside of the rotating bucket 2 to receive the glass raw materials discharged from the top of the rotating bucket 2; the second material conveyor belt 7 and the third material conveyor belt 8 transport the glass raw materials in the material receiving trough 204 back to the storage hopper 1.

[0082] Through the above technical solution, the receiving trough 204 is used to receive the large pieces of glass raw materials thrown out by the rotating bucket 2, and then the large pieces of glass raw materials are sent back to the storage hopper 1 through the horizontal second conveyor belt 7 and the stepped third conveyor belt 8, and further cracked into small pieces of glass raw materials through rapid cooling and rapid heating.

[0083] As a preferred implementation method, Fig. 9 and Fig.10 As shown, the automatic feeding device further includes a rubber brush 2042 , which is connected to the side of the rotating bucket 2 facing the material receiving trough 204 . The rubber brush 2042 brushes the glass raw materials in the material receiving trough 204 under the rotation of the rotating bucket 2 .

[0084] Through the above technical solution, the rubber brush 2042 is used to improve the mobility of the large glass raw materials in the receiving trough 204, avoid the problem of material jamming and material piling in the receiving trough 204, and improve the stability of the device operation.

[0085] As a preferred implementation method, Fig. 9 As shown, the automatic feeding device further includes a varistor 301 , and the varistor 301 is in contact with the bottom surface of the shaking machine 3 .

[0086] When in use, first run the shaking machine 3 at no load, obtain the vibration curve of the shaking machine 3 at different frequencies through the varistor 301, and then record it under load. Every time the glass raw materials fall into the shaking machine 3, data different from the no-load vibration curve will appear, and the total unloaded weight is superimposed in an accumulated manner. Similarly, when the glass raw materials leave the shaking machine 3 and enter the furnace, the weight reduction will also be stored separately in an overlaid manner to record the total amount of glass raw materials entering the furnace.

[0087] Through the above technical scheme, the varistor 301 is used to identify the gravity change caused by the glass raw material falling into the shaker 3, as well as the gravity change after the material is shaken into the furnace, and after filtering out the gravity change caused by the shaker 3 itself when idling, the accurate glass raw material feeding rate is obtained, thereby further improving the feeding stability of the secondary melting.

[0088] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. An automatic feeding device for glass bead production, characterized in that: include: A mounting frame (6) connected to the top of the glass secondary melting equipment; A rotating bucket (2) is rotatably connected to the mounting frame (6), and the rotating bucket (2) centrifugally screens glass raw materials of different sizes by rotating; A storage hopper (1) connected to the mounting frame, used for adding and storing glass raw materials and supplying them to the rotating hopper (2); A first conveyor belt (4) receives the glass raw materials discharged from below the storage hopper (1) and conveys the glass raw materials to a preset point on the inner inclined surface of the rotating hopper (2); A material shaking machine (3) receives the glass raw materials discharged from the lower end of the rotating bucket (2), and shakes the glass raw materials and adds them into the glass secondary melting equipment; A material guide trough (401) connected to the mounting frame (6), one end of the material guide trough (401) facing the first conveyor belt (4) and the other end facing the rotating bucket (2); A material guide sheet (403) is inserted into one end of the material guide slot (401) facing the first conveyor belt (4), and the distance between the material guide sheet (403) and the first conveyor belt (4) is adjustable; A slag trough (402) is connected to the mounting frame (6), and the slag trough (402) is arranged at one end of the first conveyor belt (4) facing the guide sheet (403).

2. The automatic feeding device for glass beads production according to claim 1, characterized in that: Also includes: A cracking bin (5) is provided above the first conveyor belt (4), and the cracking bin (5) is provided with a high temperature zone (501), a heating zone (502), a cooling zone (503) and a fan (504) in sequence along the conveying direction of the first conveyor belt (4); The cooling zone (503) is connected to a semiconductor cooling plate (5031), the cold surface of the semiconductor cooling plate (5031) faces the first conveyor belt (4), the hot surface of the semiconductor cooling plate (5031) is connected to a heat sink (5032), the fan (504) inhales air and passes the air through the heat sink (5032), and the air heated by the heat sink (5032) is blown toward the heating zone (502); The heating zone (502) has a heating tube (5021), and the heating tube (5021) further heats the air passing through the heat sink (5032); The high temperature zone (501) is provided with an opening in the direction of the first conveyor belt (4), and the air heated by the heating tube (5021) is blown toward the glass raw materials on the first conveyor belt (4) through the opening.

3. The automatic feeding device for glass bead production according to claim 2, characterized in that: The material guide trough (401) comprises a gathering section (4011) and a discharging section (4012), wherein the gathering section (4011) faces the first conveyor belt (4), and the discharging section (4012) faces the inner inclined surface of the rotating bucket (2), and the cross section of the gathering section (4011) gradually changes from a straight line to a V-shape, while the cross section of the discharging section (4012) is V-shaped.

4. The automatic feeding device for glass bead production according to claim 3, characterized in that: Also includes: A material receiving trough (204) is arranged around the outside of the rotating bucket (2) and is used to receive glass raw materials discharged from above the rotating bucket (2); The second conveyor belt (7) and the third conveyor belt (8) convey the glass raw materials in the receiving trough (204) back to the storage hopper (1).

5. The automatic feeding device for glass bead production according to claim 4, characterized in that: Also includes: A glue brush (2042) is connected to a side of the rotating bucket (2) facing the material receiving trough (204), and the glue brush (2042) brushes the glass raw material in the material receiving trough (204) driven by the rotation of the rotating bucket (2).

6. The automatic feeding device for glass bead production according to claim 5, characterized in that: Also includes: The varistor (301) is in contact with the bottom surface of the material shaking machine (3), and the vibration curves of the material shaking machine (3) at different frequencies are obtained through the varistor (301).

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