Extrusion granulation device and method for glass bead forming

Abstract

The invention discloses an extrusion granulation device and method for glass bead forming, and relates to the technical field of glass bead preparation. The device comprises a support frame and a to-be-processed glass bead raw material, and further comprises a melting unit which comprises a driving assembly II and a melting assembly; the granulation forming unit comprises an extrusion assembly and a forming assembly, a liquid extrusion box used for collecting glass bead molten materials is arranged in the extrusion assembly, and the forming assembly comprises a cooling mechanism and a shaping mechanism; and the discharging unit is used for realizing automatic discharging of the glass beads in the granulating and forming unit. The device has the advantages that by adopting an automatic pressurizing and dripping mode, the dripping speed of glass bead liquid drops can be effectively controlled, pre-cooling can be realized while the glass bead liquid drops drip, and the pre-cooled glass bead particles are subjected to rotary pressurizing and shaping, so that the forming roundness of the glass bead particles can be effectively improved, and the forming quality of the glass bead particles is improved. And glass bead particles with different shapes are avoided.

Description

Technical Field

[0001] The invention relates to the technical field of glass microbead preparation, and in particular to an extrusion granulation device and method for forming glass microbeads. Background Art

[0002] Glass microbeads refer to glass particles made of polyethylene and other materials through heating, melting, extrusion and granulation. They have the advantages of high strength, good stability and high transparency. Glass microbeads are usually prepared by extrusion granulation equipment. Existing extrusion granulation devices use a variety of methods to achieve the preparation of glass microbeads, such as an extrusion granulation device for glass microbead molding with publication number CN118239666B, which relates to the field of granulation molding technology, including a horizontally arranged square base, a square blanking box is fixedly connected to the square base, a discharge assembly is arranged in the blanking box, a screening cylinder is fixedly installed on the upper end surface of the blanking box, a granulation box is lifted and set on the screening cylinder, an extrusion granulation assembly and an air cooling shaping assembly are respectively arranged in the granulation box, a heating box is fixedly arranged above the granulation box, and a raw material melting assembly is arranged in the heating box; The existing extrusion granulation device usually heats and melts the glass beads first, and then uses the molten material to drip and form to realize the automatic forming of the glass beads. This forming method has the disadvantages that the dripping speed is uncontrollable, and the front and rear glass beads are easy to collide and melt each other. At the same time, the dripping glass beads are easy to deform due to factors such as impact when falling, so that the shape and size of the formed glass beads are not round and uniform. For example, the above-mentioned referenced prior art, the device realizes the discharge of glass beads by throwing materials. This method cannot control the throwing force and speed of the glass beads, and the roundness of the glass beads is not good, and there will be a large number of elliptical particles of different shapes, which has certain limitations; Therefore, it is urgent to design an extrusion granulation device and method for glass microbead molding to solve the above problems. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides an extrusion granulation device and method for forming glass microbeads, which solves the problems raised in the above-mentioned background technology.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: an extrusion granulation device for forming glass microspheres, comprising a support frame and glass microsphere raw materials to be processed, and also comprising: The melting unit is arranged on the support frame and is used to heat, melt and convey the glass microbead raw material, and includes a driving component 2 and a melting component. The driving component 2 is used to drive the melting component to convey and feed the glass microbead raw material. The granulation molding unit is arranged on the support frame, and includes an extrusion assembly and a molding assembly, wherein the extrusion assembly is provided with an extrusion box for collecting the molten glass microbeads, the extrusion box is provided with a dripping mechanism, and the dripping mechanism is provided with a dripping tube, and the dripping mechanism is used to control the content of the droplets injected into the dripping tube per unit time, so that the droplet velocity at the outlet end of the dripping tube per unit time is kept constant; The molding assembly includes a cooling mechanism and a shaping mechanism, wherein the cooling mechanism is provided with a spray box for spraying and blowing the glass microbead particles to cool the glass microbead particles, the cooling mechanism is used to change the falling position of the front and rear droplets through the action of the lateral wind force when the droplets fall, so as to avoid the collision of the front and rear droplets, and the shaping mechanism is provided with a shaping rotating plate for extruding and shaping the glass microbead particles; The discharging unit is arranged on the supporting frame and is used for realizing the automatic discharging of the glass microbeads in the granulation and molding unit.

[0005] Preferably, the melting assembly includes a feeding melting tube arranged on a support frame, and a feeding hopper for placing glass microbead raw materials is arranged on the feeding melting tube, a feeding shaft is rotatably installed in the feeding melting tube, and a spiral pushing blade for conveying the glass microbead raw materials is fixedly installed on the feeding shaft, and a heating ring tube for heating the molten glass microbead raw materials is fixedly installed in the feeding hopper.

[0006] Preferably, the second driving component comprises a second driving motor arranged on a support frame, a second driving shaft is rotatably mounted on the second driving motor through the cooperation of a transmission component, and the feeding shaft is fixedly mounted on the second driving shaft.

[0007] Preferably, the extrusion assembly includes a drop forming tube arranged on a support frame, and the drop forming tube is connected to a feeding melting tube, a liquid squeezing box is fixedly installed in the drop forming tube, and a collecting bucket for receiving the molten glass beads in the feeding melting tube is fixedly connected to the upper part of the liquid squeezing box, and a dripping mechanism is arranged in the liquid squeezing box.

[0008] Preferably, the dripping mechanism comprises a partitioning plate slidably mounted in the squeeze box, and the partitioning plate is slidably connected to the collecting bucket, an electric telescopic rod is provided in the squeeze box, and the partitioning plate is fixedly mounted on the driving end of the electric telescopic rod, and a bearing plate is fixedly mounted at the lower part of the squeeze box; The carrier plate is provided with a plurality of liquid guiding hoppers for conducting the molten glass beads, and each liquid guiding hopper is provided with an electric opening and closing door, and the lower part of each liquid guiding hopper is fixedly connected with a dripping tube for the molten glass beads to drip.

[0009] Preferably, the molding assembly includes a positioning box arranged on a support frame, a servo motor is fixedly installed in the positioning box, and a driving roller is rotatably installed between the driving end of the servo motor and the positioning box, a cooling mechanism for cooling the glass bead melt into glass bead particles is installed between the drop molding tube and the positioning box, a molding tube is fixedly installed in the drop molding tube, and a shaping mechanism is installed between the molding tube and the driving roller.

[0010] Preferably, the cooling mechanism comprises a partition plate and a filter plate fixedly mounted in the positioning box, and the partition plate is located at the lower part of the filter plate, a fan wheel is fixedly mounted on the driving roller, and the fan wheel is located at the upper part of the filter plate, an air outlet pipe for air outlet is fixedly connected to the positioning box, and a spray box is fixedly mounted on the drop forming pipe, and the spray box is connected to the air outlet pipe; The spray box is fixedly connected with a liquid inlet pipe through multiple spray pipes, and the liquid inlet pipe is connected with an external water supply pipe. Multiple return suction pipes for returning air and water are fixedly connected between the drop forming pipe and the positioning box. The positioning box is fixedly connected with a waste discharge pipe for discharging impurities, and the return suction pipe and the waste discharge pipe are both located on the upper part of the partition plate.

[0011] Preferably, the shaping mechanism includes two placing plates fixedly installed in the forming cylinder, and the two placing plates are provided with a plurality of standard forming holes for unloading glass beads, a linkage roller is rotatably installed between the two placing plates, and a transmission belt is sleeved between the linkage roller and the driving roller, and two forming rotating pressure plates for shaping glass bead particles are fixedly installed on the linkage roller, and the two forming rotating pressure plates are respectively matched with the two placing plates.

[0012] Preferably, the discharging unit includes a discharging pipe arranged on a support frame, and the discharging pipe is connected to a positioning box, and a discharging assembly is arranged in the discharging pipe, and a driving assembly 1 cooperating with the discharging assembly is arranged on the support frame, and the driving assembly 1 is used to drive the discharging assembly to realize automatic discharging of glass bead particles.

[0013] A method for extrusion granulation of glass microbeads, used in the above-mentioned extrusion granulation device for glass microbeads, comprises the following steps: S1, putting the glass beads raw material to be processed into the melting unit, starting the melting component and the driving component 2, heating and melting the glass beads raw material and then conveying it to the granulation molding unit; S2, start the dripping mechanism in the extrusion assembly, control the amount injected into the dripping tube per unit time to remain constant through the dripping mechanism, thereby controlling the dripping speed of the droplets at the outlet of the dripping tube, and extrude the glass microbead molten material in granular form to form glass microbead particles; S3, cooling the glass microbead particles by a cooling mechanism, and adjusting the position of the droplets by lateral blowing during the droplet falling process to avoid deformation caused by collision between the front and rear droplets, and automatically adjusting and shaping the glass microbead particles by a shaping mechanism to adjust the roundness of the glass microbead particles; S4. The trimmed glass beads fall into the discharging unit and are automatically discharged through the discharging unit.

[0014] The present invention provides an extrusion granulation device and method for forming glass microbeads. It has the following beneficial effects: 1. When preparing glass microspheres, the extrusion granulation device adopts a spiral pushing method combined with a heating ring tube heating method, which can not only realize the rapid transportation of glass microsphere raw materials, but also realize the heating and melting of glass microsphere raw materials during the transportation process, which can effectively improve the granulation efficiency of glass microsphere particles.

[0015] 2. When preparing glass microbeads, the extrusion granulation device uses an electric telescopic rod to control the automatic downward pressing of the partition plate to accurately control the dripping speed of the glass microbead droplets, which can not only improve the dripping efficiency of the glass microbeads, but also avoid the collision of the glass microbead droplets when they fall, and the molding effect is better.

[0016] 3. When preparing glass microbeads, the extrusion granulation device can mix the external cooling water with the wind generated by the wind impeller to impact the glass microbead droplets while the glass microbead droplets fall, so as to realize the rapid pre-cooling of the glass microbead droplets into glass microbead particles with a certain heat. At the same time, the impact of the wind force can also change the dripping direction of the glass microbead droplets, avoid the collision of the glass microbeads dripping front and back, and further improve the roundness of the glass microbead particles.

[0017] 4. When preparing glass microbeads, the extrusion granulation device adopts a reciprocating extrusion method of a rotating forming rotary plate to reciprocately rotate and extrude the initially formed glass microbead particles, and can extrude and shape the glass microbead particles while rotating, which can effectively improve the roundness of the glass microbead particles and avoid the appearance of glass microbead particles of different shapes such as ellipses.

[0018] In summary, the present invention can effectively control the dripping speed of the glass bead droplets by adopting the automatic pressurized dripping method, and can achieve pre-cooling while the glass bead droplets are dripping, and the pre-cooled glass bead particles are rotated and pressurized to shape, which can effectively improve the roundness of the glass bead particles and avoid the appearance of glass bead particles of different shapes.

[0019] Other features and advantages of the present invention will be described in the following description, and part of them will become obvious from the description, or will be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description and the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The specific embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings, wherein: Figure 1 This is a schematic structural diagram of an extrusion granulation device for forming glass microbeads proposed by the present invention; Figure 2 for Figure 1 Schematic diagram of the structure after rotating a certain angle; Figure 3 for Figure 2 The schematic diagram of the structure after removing the driving component 1 and the driving component 2; Figure 4 for Figure 3 Schematic diagram of the structure after rotating a certain angle; Figure 5 for Figure 4 Schematic diagram of the structure of the center feeding melting tube and the falling forming tube; Figure 6 for Figure 5 Schematic diagram of the internal structure of the middle feeding melting tube; Figure 7 for Figure 5 Structural schematic diagram of the middle drop forming tube and the positioning box; Figure 8 for Figure 7 A front view of the internal structure of the middle drop forming tube; Fig. 9 for Figure 8 Schematic diagram of the internal structure of the middle squeeze box; Fig.10 for Fig. 9 The structural diagram of the middle liquid guide bucket; Fig.11 for Figure 8 Structural schematic diagram of the middle forming cylinder and the positioning box; Fig.12 for Fig.11 Schematic diagram of the internal structure of the positioning box; Fig.13 for Fig.12 A front view of the upper structure of the middle positioning box; Fig.14 for Fig.12 The enlarged view of the structure of the servo motor and the forming cylinder; Fig.15 for Fig.14 Schematic diagram of the internal structure of the middle forming cylinder; Fig.16 This is a diagram of the position status of the partition plate before and after movement.

[0021] In the figure: 1 support frame, 2 drive component 1, 3 drive component 2, 4 feeding melting pipe, 5 falling forming pipe, 6 discharging pipe, 7 feeding hopper, 8 spray pipe, 9 feeding shaft, 10 positioning box, 11 spiral pushing blade, 12 heating ring pipe, 13 collecting hopper, 14 drainage pipe, 15 liquid inlet pipe, 16 squeezing box, 17 dripping pipe, 18 forming cylinder, 19 electric telescopic rod, 20 partition pressure plate, 21 bearing plate, 22 liquid guide hopper, 23 electric opening and closing door, 24 forming rotary pressure plate, 25 spray box, 26 back suction pipe, 27 linkage roller, 28 placement plate, 29 servo motor, 30 partition plate, 31 driving roller, 32 filter plate, 33 wind impeller, 34 air outlet pipe, 35 transmission belt, 36 forming standard hole. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0023] Example 1: Reference Figure 1-Figure 4 A glass bead molding extrusion granulation device comprises a support frame 1 and a glass bead raw material to be processed. The glass bead raw material is a mixture formed by mixing polyethylene and other materials as the main material with some additives. After heating, the glass bead molten material is formed. The glass bead molten material is cooled and formed by dripping liquid to form glass bead particles.

[0024] The extrusion granulation device also includes: The melting unit is arranged on the support frame 1, and is used to heat, melt and transport the glass microbead raw materials. It can realize the rapid transportation of the glass microbead raw materials, and can also heat and melt the glass microbead raw materials during the transportation process, which can effectively improve the granulation efficiency of the glass microbead particles; The granulation molding unit is arranged on the support frame 1, and is used to extrude and granulate the molten glass microbead raw material, and realize automatic adjustment and shaping of the roundness of the glass microbead molding, and can accurately control the dripping speed of the glass microbead molten material droplets to avoid collision during dripping. At the same time, it can realize the cooling and preforming of the glass microbead droplets, so that the glass microbead droplets are cooled and converted into glass microbead particles, and realize the extrusion shaping of the glass microbead particles, effectively ensuring the roundness of the glass microbead particles; The discharging unit is arranged on the support frame 1, and is used to realize the automatic discharging of the glass microbeads in the granulation and molding unit, thereby improving the discharging efficiency of the glass microbead particles.

[0025] Example 2: Reference Figure 2-Figure 6The technical solution of this embodiment is different from that of the first embodiment in that the melting unit includes a driving component 2 3 and a melting component, and the driving component 2 3 is used to drive the melting component to realize the transmission and feeding of the glass microbead raw material; The melting assembly includes a feeding melting tube 4 arranged on a support frame 1, and a feeding hopper 7 for placing glass microbead raw materials is arranged on the feeding melting tube 4, a feeding shaft 9 is rotatably installed in the feeding melting tube 4, and a spiral pushing blade 11 for conveying the glass microbead raw materials is fixedly installed on the feeding shaft 9; The glass beads raw material is poured into the feeding melting tube 4 through the feeding hopper 7, and the feeding shaft 9 is started under the drive of the driving component 2 3, and drives the spiral push blade 11 to rotate. When the spiral push blade 11 rotates, it pushes the glass beads raw material in the feeding melting tube 4 to be transported forward; A heating ring 12 for heating and melting glass bead raw materials is fixedly installed in the feed hopper 7. During the conveying process of the glass bead raw materials, the heating ring 12 will be started to heat and melt the glass bead raw materials, so that the glass bead raw materials are heated and melted into glass bead molten material.

[0026] The driving component 2 3 includes a driving motor 2 arranged on the support frame 1, and a driving shaft 2 is installed on the driving motor 2 through the cooperation and rotation of the transmission component, and the feeding shaft 9 is fixedly installed on the driving shaft 2. The transmission component is composed of a transmission belt and a reducer, wherein the driving motor 2 starts and drives the reducer to start with the cooperation of the transmission belt, and drives the feeding shaft 9 to rotate after deceleration by the reducer. The cooperation between the driving motor 2, the transmission belt and the reducer is a technical composition commonly used in the prior art, and will not be elaborated here.

[0027] In a further embodiment, the discharging unit includes a discharging pipe 6 arranged on the support frame 1, and the discharging pipe 6 is connected to the positioning box 10, and a discharging assembly is arranged in the discharging pipe 6, and a driving assembly 2 cooperating with the discharging assembly is arranged on the support frame 1, and the driving assembly 2 is used to drive the discharging assembly to realize automatic discharging of glass microbead particles; The coordination between the driving component 1 2 and the discharging component is the same as the structural principle of the driving component 2 3, that is, another set of driving motor 1, transmission belt 1, reducer 1, discharging shaft and spiral discharging blades are arranged in the discharging component. The rotation of the discharging shaft and the spiral discharging blades is realized by the driving of the driving motor 1 in coordination with the driving of the transmission belt 1 and the reducer 1. The spiral discharging blades are located in the discharging pipe 6. The glass microbead particles after extrusion molding fall into the discharging pipe 6, and the automatic discharging is completed by the spiral push of the spiral discharging blades.

[0028] Example 3: Reference Figure 1-Figure 4 as well as Figure 7-Figure 16The technical solution of this embodiment is different from that of the second embodiment in that: the granulation molding unit includes an extrusion component and a molding component, wherein the extrusion component is used to realize the extrusion preforming and speed control of the glass microspheres, and the molding component is used to realize the cooling molding and roundness trimming and shaping of the glass microspheres; The extrusion assembly is provided with a liquid squeezing box 16 for collecting the molten glass beads, the liquid squeezing box 16 is provided with a liquid dripping mechanism for controlling the liquid dripping speed, and the liquid dripping mechanism is provided with a liquid dripping tube 17 for the glass beads to fall; The extrusion assembly includes a drop forming tube 5 arranged on the support frame 1, and the drop forming tube 5 is connected to the feeding melting tube 4, a squeeze box 16 is fixedly installed in the drop forming tube 5, and the upper part of the squeeze box 16 is fixedly connected to a collecting hopper 13 for receiving the glass microbead melt in the feeding melting tube 4; After being transported, the heated and melted glass beads melt will fall into the drop forming tube 5 through the feeding melting tube 4, and then fall into the squeezing box 16 through the collecting hopper 13, thus completing the automatic collection of the glass beads melt.

[0029] A dripping mechanism is provided in the squeeze box 16, and the dripping mechanism includes a partitioning plate 20 slidably mounted in the squeeze box 16, and the partitioning plate 20 is slidably connected to the collecting bucket 13, an electric telescopic rod 19 is provided in the squeeze box 16, and the partitioning plate 20 is fixedly mounted on the driving end of the electric telescopic rod 19, and a bearing plate 21 is fixedly mounted at the lower part of the squeeze box 16; According to the instruction manual Fig. 9 As shown, the lower end of the collecting hopper 13 is located between the partitioning plate 20 and the carrying plate 21, that is, the molten glass beads in the collecting hopper 13 will fall into the carrying plate 21 for storage. At this time, starting the electric telescopic rod 19 will drive the partitioning plate 20 to move downward, and the partitioning plate 20 will squeeze the molten glass beads on the carrying plate 21 when it moves downward; The lower part of the collecting hopper 13 is provided with a control door, through which the Fig.16 ) Control the closing or opening state of the collecting hopper 13. When the electric telescopic rod 19 drives the partition pressing plate 20 to move downward, the control door is closed at this time to make the collecting hopper 13 in a closed state, that is, at this time, the molten glass beads on the carrying plate 21 will not flow back to the upper part of the collecting hopper 13. When the partition pressing plate 20 does not squeeze the partition pressing plate 20, the collecting hopper 13 is in a connected state, and the molten glass beads on the upper part can flow down to the carrying plate 21 normally; The length of the lower part of the collecting hopper 13 is greater than the maximum length of the partition pressing plate 20 when it moves downward, that is, when the partition pressing plate 20 moves downward to the lowest position, it will not separate from the lower part of the collecting hopper 13 (refer to Fig.16 ).

[0030] When the partition plate 20 moves downward, the molten glass beads on the supporting plate 21 will be fully squeezed, and because the molten glass beads on the supporting plate 21 will not flow out, that is, the space above the supporting plate 21 gradually decreases when the partition plate 20 moves downward, the molten glass beads between the partition plate 20 and the supporting plate 21 will gradually be compressed.

[0031] A plurality of liquid guide hoppers 22 for conducting the molten glass beads are arranged on the carrier plate 21, and each liquid guide hopper 22 is provided with an electric opening and closing door 23, and the lower part of each liquid guide hopper 22 is fixedly connected to a dripping pipe 17 for the molten glass beads to drip; When the glass bead melt needs to be extruded, the electric telescopic rod 19 drives the partition plate 20 to move downward and extrude the glass bead melt, and at the same time, the multiple electric opening and closing doors 23 on the multiple liquid guide buckets 22 are opened. At this time, the glass bead melt is pressed into the liquid guide bucket 22 when being extruded, and then drips out in the form of droplets through the liquid guide bucket 22 and the dripping tube 17 at the bottom thereof, so that multiple glass bead droplets can be dripped out through the dripping tube 17; The opening and closing state of the liquid guiding hopper 22 is controlled by the electric opening and closing door 23, that is, when the partition pressure plate 20 is controlled to move downward to pressurize the molten glass beads, the electric opening and closing door 23 is opened to allow the molten glass beads to enter the liquid guiding hopper 22 and gradually drip out through the drip tube 17. When all the molten glass beads on the supporting plate 21 are squeezed out, the electric opening and closing door 23 is closed to seal the liquid guiding hopper 22, and the molten glass beads in the squeezing box 16 are replenished.

[0032] If the partition pressing plate 20 is not started to move downward to pressurize the glass bead melt, when the electric opening and closing door 23 is opened, the glass bead melt on the carrier plate 21 will automatically fall into the liquid guide bucket 22 under the action of gravity and drip through the dripping tube 17. At this time, as the content of the glass bead melt on the upper part of the carrier plate 21 gradually decreases, the dripping speed in the dripping tube 17 will gradually decrease. By controlling the partition pressing plate 20 to move downward by the electric telescopic rod 19, the dripping speed of the glass bead melt on the carrier plate 21 is changed, and the dripping speed of the glass bead melt can be effectively controlled, thereby achieving effective control of the dripping speed; In a further embodiment, a speed sensor can be provided at the outlet end of the droplet tube 17 to measure the dripping speed of the droplets (the speed sensor can specifically be a laser sensor, a photoelectric sensor, a pressure sensor, etc.). That is, according to actual needs, the dripping speed of the droplets can be flexibly adjusted by controlling the downward position and downward speed of the partition plate 20 to achieve constant falling of the droplets or automatic control of the falling speed of the droplets (i.e., maintaining a constant falling speed under normal circumstances, increasing the falling speed if the preparation efficiency needs to be improved, and reducing the falling speed if the preparation efficiency needs to be reduced).

[0033] The speed at which the molten glass beads enter the liquid guiding hopper 22 is controlled by controlling the downward movement speed of the partition pressing plate 20, so as to achieve stable control of the dripping speed. That is, the partition pressing plate 20 is controlled to move downward by the electric telescopic rod 19. As the content of the molten glass beads on the upper part of the supporting plate 21 gradually decreases, the downward movement speed of the partition pressing plate 20 is adaptively increased, so that the partition pressing plate 20 moves downward with uniform acceleration, and its adaptability to the pressure applied to the molten glass beads on the supporting plate 21 is increased. Moreover, since the diameter of the liquid guiding hopper 22 remains unchanged, the amount of molten glass beads injected per unit time is kept constant, that is, the dripping speed of the molten glass beads dripped and squeezed out from the lower part of the liquid guiding hopper 22 is kept constant per unit time. Based on the above principle, the situation where the dripping speed is too fast or too slow and the droplets gather can be effectively avoided.

[0034] The degree of pressure on the molten glass beads on the carrier plate 21 can be controlled by controlling the extension and extrusion speed of the electric telescopic rod 19, thereby increasing or decreasing the rate at which the molten glass beads enter the liquid guiding bucket 22. The dripping speed of the glass bead droplets can be controlled by the downward movement speed of the partition pressing plate 20, and the glass bead droplets can be controlled to gradually fall at a constant speed, thereby avoiding the situation where the glass bead droplets fall too fast and water flows, thereby achieving the control of the dripping speed of the glass bead droplets on the dropper 17 and realizing the uniform extrusion preparation of the glass bead droplets.

[0035] In a further embodiment, the molding assembly includes a cooling mechanism and a shaping mechanism, wherein the cooling mechanism is provided with a spray box 25 for spraying the glass microbead particles to cool them down, and the shaping mechanism is provided with a molding rotary pressing plate for extruding and shaping the glass microbead particles; The molding assembly includes a positioning box 10 disposed on a support frame 1, a servo motor 29 is fixedly installed in the positioning box 10, and a driving roller 31 is rotatably installed between the driving end of the servo motor 29 and the positioning box 10, and a cooling mechanism for cooling the glass microbead molten material into glass microbead particles is installed between the drop molding tube 5 and the positioning box 10; The cooling mechanism includes a partition plate 30 and a filter plate 32 fixedly installed in the positioning box 10, and the partition plate 30 is located at the lower part of the filter plate 32, a fan wheel 33 is fixedly installed on the driving roller 31, and the fan wheel 33 is located at the upper part of the filter plate 32, and an air outlet pipe 34 for air outlet is fixedly connected to the positioning box 10; When the servo motor 29 is started, the driving roller 31 is driven to rotate. The driving roller 31 is driven to rotate the impeller 33. The impeller 33 is driven to rotate to generate wind force and airflow. The wind force and airflow are discharged through the air outlet pipe 34. A spray box 25 is fixedly installed on the drop forming tube 5, and the spray box 25 is connected to the air outlet pipe 34. The wind flow in the air outlet pipe 34 will enter the spray box 25 and be directly blown into the drop forming tube 5, so that the glass microbead droplets dripping in the drop forming tube 5 can be blown to dissipate heat, thereby achieving preliminary cooling and heat dissipation of the glass microbead droplets.

[0036] The spray box 25 is fixedly connected to a liquid inlet pipe 15 through a plurality of spray pipes 8, and the liquid inlet pipe 15 is connected to an external water supply pipe; While the spray box 25 is blowing air, the external water supply pipe will start to spray cooling mist water into the spray box 25 through the liquid inlet pipe 15 and the multiple spray pipes 8. At this time, the cooling mist water in the spray box 25 will be mixed with the wind and air flow therein and blown into the falling forming tube 5 synchronously, thereby increasing the cooling and forming speed of the glass microbead droplets in the falling forming tube 5, so that the glass microbead droplets are initially cooled into glass microbead particles and continue to fall; When the wind force airflow is blown laterally onto the glass microbead droplets, the droplet direction of the glass microbead droplets can be changed under the action of the lateral wind thrust, so that the glass microbead droplets will not always remain in a vertical state when dripping, and avoid the glass microbead droplets at the rear hitting the glass microbead droplets at the front with the same falling trajectory after the front glass microbead droplets fall (for example: by controlling the speed of the servo motor 29 to control the size of the wind force airflow, and then controlling the size of the wind force airflow blown out of the spray box 25, the wind force airflow can be controlled to increase and blow in an intermittent manner, that is, when a large airflow is blown onto the falling glass microbead droplets, the glass microbead droplets will be blown to a farther position, and a small airflow will blow the glass microbead droplets to a closer position, thereby achieving the change of the front and rear falling positions of the glass microbead droplets by controlling the size of the wind force airflow), thereby avoiding the collision of the front and rear dripping glass microbeads with each other, and further improving the roundness of the glass microbead particles; The change cycle range of the wind and airflow can be flexibly adjusted according to the dripping speed of the droplets, that is, when the dripping speed increases, the wind and airflow intensity increases synchronously, and when the dripping speed decreases, the wind and airflow intensity decreases synchronously, thereby realizing adaptive change adjustment between the droplet dripping speed and the wind and airflow.

[0037] A plurality of return suction pipes 26 for returning air and water are fixedly connected between the drop forming pipe 5 and the positioning box 10, and a waste discharge pipe 14 for discharging impurities is fixedly connected to the positioning box 10, and the return suction pipe 26 and the waste discharge pipe 14 are both located on the upper part of the partition plate 30; The cooling water and wind flow after blowing and cooling will return to the positioning box 10 after being sucked back through the suction pipe 26. At this time, the accumulated cooling water and impurities cannot pass through the filter plate 32 and will accumulate on the partition plate 30 and be discharged through the exhaust pipe 14, while the sucked back air will return to the upper part of the filter plate 32 to complete the automatic replenishment of air, avoiding the situation where the impeller 33 rotates and negative pressure occurs and air cannot be sucked.

[0038] In a further embodiment, a forming cylinder 18 is fixedly installed in the drop forming tube 5, and a shaping mechanism is installed between the forming cylinder 18 and the driving roller 31, the shaping mechanism includes two placement plates 28 fixedly installed in the forming cylinder 18, a linkage roller 27 is rotatably installed between the two placement plates 28, and a transmission belt 35 is sleeved between the linkage roller 27 and the driving roller 31; The servo motor 29 is started to drive the driving roller 31 to rotate. The rotation of the driving roller 31 drives the linkage roller 27 to rotate under the cooperation of the transmission belt 35, thereby realizing the drive transmission of the driving roller 31.

[0039] Two forming rotary pressing plates 24 for shaping glass microbead particles are fixedly mounted on the linkage roller 27, and the two forming rotary pressing plates 24 are respectively matched with two placing plates 28, and the two placing plates 28 are provided with a plurality of forming standard holes 36 for discharging glass microbeads; The pre-cooled and formed glass beads will fall onto the upper placement plate 28 in the forming cylinder 18. At this time, the rotation of the linkage roller 27 will drive the two forming rotary pressure plates 24 to rotate. The rotation of the forming rotary pressure plate 24 and the linkage roller 27 is eccentric, so that the forming rotary pressure plate 24 will rotate in a circular manner in the forming cylinder 18 when it rotates, and can fully contact the glass beads without dead angles.

[0040] When the molding rotating plate 24 rotates, it will contact the glass beads on the placing plate 28, and will rotate and roll the glass beads (the pre-cooled glass beads have not been completely cooled and formed, and the glass beads can still be deformed under pressure at this time, so that rotation shaping can be achieved), that is, the glass beads are squeezed and shaped at the same time, and the glass beads are gradually transformed into spherical shapes during the gradual rotation and extrusion process, so that the irregular shapes of the glass beads such as ellipses are transformed into spherical shapes; The glass beads on the upper placement plate 28 rotate and roll to form particles that will fall through the standard forming holes 36 on the placement plate 28 and onto the lower placement plate 28. At this time, the lower forming rotary plate 24 will continue to rotate and continue to fall through the standard forming holes 36 on the lower placement plate 28 after rolling and forming, and then fall into the discharging unit, completing the automatic unloading of the glass beads.

[0041] A collecting box is provided in the discharge pipe 6 in the discharge unit, and a filter is provided on the collecting box. Part of the spray water sprayed through the spray box 25 will fall into the forming cylinder 18, and fall into the discharge pipe 6 through a plurality of forming standard holes 36 on the placement plate 28, and fall into the collecting box through the filter, thereby completing the recovery of excess cooling water.

[0042] The operation steps of this extrusion granulation device are as follows: The glass beads raw material is poured into the feeding melting tube 4 through the feeding hopper 7, and the feeding shaft 9 is started under the drive of the driving component 2 3, and drives the spiral pushing blade 11 to rotate, and the spiral pushing blade 11 rotates to push the glass beads raw material in the feeding melting tube 4 to be transported forward. During the transportation of the glass beads raw material, the heating ring tube 12 is started to heat and melt the glass beads raw material, and the glass beads raw material is heated and melted into glass beads molten material; After being transported, the heated and melted glass bead melt will fall into the drop forming tube 5 through the feeding melting tube 4, and the control door on the collecting bucket 13 will be opened to allow the glass bead melt to fall into the squeezing box 16 through the collecting bucket 13. The glass bead melt in the collecting bucket 13 will fall into the carrying plate 21 for storage, and then the control door on the collecting bucket 13 will be closed, and the electric telescopic rod 19 will be started synchronously to drive the partition pressing plate 20 to move downward. The partition pressing plate 20 will squeeze the glass bead melt on the carrying plate 21 when it moves downward, and at the same time, the multiple electric opening and closing doors 23 on the liquid guiding bucket 22 will be opened. At this time, the glass bead melt will be pressed into the liquid guiding bucket 22 when being squeezed, and will drip out in the form of droplets through the liquid guiding bucket 22 and the dripping tube 17 at the bottom thereof, and multiple glass bead droplets can be dripped out through the dripping tube 17.

[0043] When the servo motor 29 is started, it will drive the driving roller 31 to rotate. The rotation of the driving roller 31 will drive the impeller 33 to rotate. The rotation of the impeller 33 will generate wind airflow, which will be discharged through the air outlet pipe 34 and directly blown into the falling forming tube 5, so as to blow and dissipate the glass microbead droplets dripping in the falling forming tube 5, thereby achieving preliminary cooling and heat dissipation of the glass microbead droplets.

[0044] The pre-cooled and formed glass beads will fall onto the upper placement plate 28 in the forming cylinder 18. At this time, the linkage roller 27 will drive the two forming rotary plates 24 to rotate. The rotation of the forming rotary plates 24 and the linkage roller 27 is eccentric, so that the forming rotary plates 24 will rotate in a circular manner in the forming cylinder 18. When the forming rotating plate 24 rotates, it will contact the glass beads on the placing plate 28, and rotate and squeeze the glass beads, that is, the glass beads are squeezed and shaped at the same time, and the glass beads are gradually transformed into spherical shapes during the gradual rotation and squeezing process, so that the irregular shapes of the glass beads such as ellipses are transformed into spherical shapes; The glass beads on the upper placement plate 28 rotate and roll to form particles that will fall through the standard forming holes 36 on the placement plate 28 and onto the lower placement plate 28. At this time, the lower forming rotary plate 24 will continue to rotate and continue to fall through the standard forming holes 36 on the lower placement plate 28 after rolling and forming, and then fall into the discharging unit, completing the automatic unloading of the glass beads.

[0045] The embodiment of the present invention further provides an extrusion granulation method for glass microbead molding, which is used in the above-mentioned extrusion granulation device for glass microbead molding, comprising the following steps: S1, putting the glass beads raw material to be processed into the melting unit, starting the melting component and the driving component 23, heating and melting the glass beads raw material and then conveying it to the granulation molding unit; S2, start the dripping mechanism in the extrusion assembly, control the amount of liquid injected into the dripping tube 17 per unit time to remain constant through the dripping mechanism, thereby controlling the dripping speed of the liquid droplets at the outlet of the dripping tube 17, and extrude the glass microbead melt in granular form to form glass microbead particles; S3, cooling the glass microbead particles by a cooling mechanism, and adjusting the position of the droplets by lateral blowing during the droplet falling process to avoid deformation caused by collision between the front and rear droplets, and automatically adjusting and shaping the glass microbead particles by a shaping mechanism to adjust the roundness of the glass microbead particles; S4. The trimmed glass beads fall into the discharging unit and are automatically discharged through the discharging unit.

[0046] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An extrusion granulation device for forming glass microspheres, comprising a support frame (1) and glass microsphere raw materials to be processed, characterized in that: Also includes: The melting unit is arranged on the support frame (1) and is used to heat, melt and convey the glass microbead raw material, and comprises a second driving component (3) and a melting component, wherein the second driving component (3) is used to drive the melting component to convey the glass microbead raw material; A granulation molding unit is arranged on a support frame (1), comprising an extrusion assembly and a molding assembly, wherein the extrusion assembly is provided with an extrusion box (16) for collecting molten glass microbeads, the extrusion box (16) is provided with a dripping mechanism, and the dripping mechanism is provided with a dripping tube (17), the dripping mechanism is used to control the content of liquid droplets injected into the dripping tube (17) per unit time, so that the droplet velocity at the outlet end of the dripping tube (17) per unit time is kept constant; The molding assembly comprises a cooling mechanism and a shaping mechanism, wherein the cooling mechanism is provided with a spray box (25) for spraying and blowing the glass microbead particles to cool the glass microbead particles, the cooling mechanism is used to change the falling positions of the front and rear droplets through the action of lateral wind force when the droplets fall, so as to avoid collision between the front and rear droplets, and the shaping mechanism is provided with a shaping rotating plate (24) for extruding and shaping the glass microbead particles; The discharging unit is arranged on the support frame (1) and is used to realize automatic discharging of the glass microbeads in the granulation molding unit.

2. The extrusion granulation device for forming glass microbeads according to claim 1, characterized in that: The melting assembly comprises a feeding melting tube (4) arranged on a support frame (1), and a feeding hopper (7) for placing glass microbead raw materials is arranged on the feeding melting tube (4), a feeding shaft (9) is rotatably mounted in the feeding melting tube (4), and a spiral pushing blade (11) for conveying the glass microbead raw materials is fixedly mounted on the feeding shaft (9), and a heating ring tube (12) for heating the molten glass microbead raw materials is fixedly mounted in the feeding hopper (7).

3. The extrusion granulation device for forming glass microbeads according to claim 2, characterized in that: The second drive assembly (3) comprises a second drive motor arranged on the support frame (1), a second drive shaft is rotatably mounted on the second drive motor through the cooperation of the transmission assembly, and the feed shaft (9) is fixedly mounted on the second drive shaft.

4. The extrusion granulation device for forming glass microbeads according to claim 1, characterized in that: The extrusion assembly comprises a drop forming tube (5) arranged on a support frame (1), and the drop forming tube (5) is connected to a feeding melting tube (4), a liquid squeezing box (16) is fixedly installed in the drop forming tube (5), and a collecting bucket (13) for receiving glass microbead molten material in the feeding melting tube (4) is fixedly connected to the upper part of the liquid squeezing box (16), and a liquid dripping mechanism is arranged in the liquid squeezing box (16).

5. The extrusion granulation device for forming glass microbeads according to claim 4, characterized in that: The dripping mechanism comprises a partitioning pressure plate (20) slidably mounted in a squeeze box (16), and the partitioning pressure plate (20) is slidably connected to a collecting bucket (13); an electric telescopic rod (19) is provided in the squeeze box (16), and the partitioning pressure plate (20) is fixedly mounted on a driving end of the electric telescopic rod (19); a bearing plate (21) is fixedly mounted at the lower part of the squeeze box (16); A plurality of liquid guide hoppers (22) for conducting molten glass beads are arranged on the carrier plate (21), and each liquid guide hopper (22) is provided with an electric opening and closing door (23), and the lower part of each liquid guide hopper (22) is fixedly connected to a liquid dripping tube (17) for dripping the molten glass beads.

6. The extrusion granulation device for forming glass microbeads according to claim 4, characterized in that: The molding assembly comprises a positioning box (10) arranged on a support frame (1), a servo motor (29) being fixedly installed in the positioning box (10), and a driving roller (31) being rotatably installed between a driving end of the servo motor (29) and the positioning box (10), a cooling mechanism for cooling the molten glass microbead material into glass microbead particles being installed between the falling molding tube (5) and the positioning box (10), a molding cylinder (18) being fixedly installed in the falling molding tube (5), and a shaping mechanism being installed between the molding cylinder (18) and the driving roller (31).

7. The extrusion granulation device for forming glass microbeads according to claim 6, characterized in that: The cooling mechanism comprises a partition plate (30) and a filter plate (32) fixedly mounted in the positioning box (10), wherein the partition plate (30) is located below the filter plate (32); a fan wheel (33) is fixedly mounted on the driving roller (31), and the fan wheel (33) is located above the filter plate (32); an air outlet pipe (34) for discharging air is fixedly connected to the positioning box (10); a spray box (25) is fixedly mounted on the drop forming pipe (5), and the spray box (25) is connected to the air outlet pipe (34); The spray box (25) is fixedly connected to a liquid inlet pipe (15) via a plurality of spray pipes (8), and the liquid inlet pipe (15) is connected to an external water supply pipe. A plurality of return suction pipes (26) for returning air and water are fixedly connected between the drop forming pipe (5) and the positioning box (10). A waste discharge pipe (14) for discharging waste is fixedly connected to the positioning box (10), and the return suction pipe (26) and the waste discharge pipe (14) are both located on the upper part of the partition plate (30).

8. The extrusion granulation device for forming glass microbeads according to claim 6, characterized in that: The shaping mechanism comprises two placement plates (28) fixedly mounted in a shaping cylinder (18), and the two placement plates (28) are each provided with a plurality of standard shaping holes (36) for discharging glass microbeads. A linkage roller (27) is rotatably mounted between the two placement plates (28), and a transmission belt (35) is sleeved between the linkage roller (27) and a driving roller (31). Two shaping rotating pressure plates (24) for shaping glass microbead particles are fixedly mounted on the linkage roller (27), and the two shaping rotating pressure plates (24) are respectively matched with the two placement plates (28).

9. The extrusion granulation device for forming glass microbeads according to claim 7, characterized in that: The discharging unit comprises a discharging pipe (6) arranged on a support frame (1), the discharging pipe (6) being connected to a positioning box (10), and a discharging assembly being arranged in the discharging pipe (6), and a driving assembly (2) cooperating with the discharging assembly being arranged on the support frame (1), the driving assembly (2) being used to drive the discharging assembly to realize automatic discharging of glass microbead particles.

10. An extrusion granulation method for forming glass microspheres, used in the extrusion granulation device for forming glass microspheres as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: S1, placing the glass beads raw material to be processed into the melting unit, starting the melting component and the driving component 2 (3), heating and melting the glass beads raw material and then conveying it to the granulation molding unit; S2, starting the dripping mechanism in the extrusion assembly, controlling the amount of liquid injected into the dripping tube (17) per unit time to remain constant through the dripping mechanism, thereby controlling the dripping speed of the liquid droplets at the outlet end of the dripping tube (17), and extruding the glass microbead molten material in the form of particles to form glass microbead particles; S3, cooling the glass microbead particles by a cooling mechanism, and adjusting the position of the droplets by lateral blowing during the droplet falling process to avoid deformation caused by collision between the front and rear droplets, and automatically adjusting and shaping the glass microbead particles by a shaping mechanism to adjust the roundness of the glass microbead particles; S4. The trimmed glass beads fall into the discharging unit and are automatically discharged through the discharging unit.

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