Hopper mechanism used for enamel glaze production and capable of being crushed into blocky powder

Abstract

The invention discloses a hopper mechanism used for enamel glaze production and capable of being crushed into blocky powder, and belongs to the technical field of enamel glaze production equipment.The hopper mechanism comprises a hopper and a vertically-arranged discharging pipe communicated with a lower end opening of the hopper, a pipe hole of the discharging pipe is cylindrical, and the hopper is provided with an upper cylindrical inner cavity and a lower conical inner cavity. The milling machine further comprises a milling device and a supporting body located below the discharging pipe and used for installing the milling device, a material control main switch is arranged at a lower end opening of the discharging pipe, a tool bit assembly which is provided with an upward tool edge and can rotate and ascend and descend is arranged at the top of the milling device, and the tool bit assembly can expand and contract a milling face in the radial direction. The tool bit assembly mills and pushes blocky powder upwards from the bottom from the lower end opening of the pipe hole of the discharging pipe, so that the blocky powder from the discharging pipe to the hopper is milled and crushed and then automatically falls into the groove-shaped conveying belt below.

Description

Technical Field

[0001] The present invention relates to a hopper mechanism for crushable block-shaped powder materials used in the production of enamel glazes, and belongs to the technical field of enamel glaze production equipment. Background Art

[0002] Enamel glaze materials are snowflake-shaped powder materials formed by highly mixing various raw materials in proportion and then subjecting them to high-temperature refinement treatment. They are widely used to form a hard and smooth surface protective layer on the product surface, which can not only make the product surface smooth and beautiful, but more importantly, can isolate the product from the environment and prevent the product surface from being corroded.

[0003] In the process of mixing the above-mentioned various raw materials in proportion, a generally adopted method is a trough-shaped conveyor belt leading to a mixing tank, with various hoppers arranged along the trough-shaped conveyor belt. The discharge ports of the hoppers are all aligned with the trough of the trough-shaped conveyor belt. During application, the raw materials contained in the hoppers are discharged into the trough of the trough-shaped conveyor belt under the control of the system according to their respective flow control standards.

[0004] The general way to set up hoppers in an enamel glaze material factory is to set the hopper openings at the upper end of the hoppers at a position flush with the ground on the second floor of the workshop, which is convenient for personnel and machinery to pour raw materials into the hoppers on the second floor. The trough-shaped conveyor belt is set at a position close to the ground on the first floor. The discharge port of the hopper is located above the trough of the trough-shaped conveyor belt and close to the trough opening. A vertical feed pipe is provided between the discharge port and the hopper.

[0005] The raw materials loaded into the hoppers are all in powder form. Among various powder raw materials, there is a type of raw material that has the characteristic of forming blocks (such as caused by crystallization) when not flowing or agitated for a certain period of time. During the actual production process, it is impossible for this type of raw material with the characteristic of forming blocks loaded into the hopper to be just used up before each shutdown due to process requirements (the conveyor belt stops supplying materials to the mixing tank). As long as the shutdown time is slightly longer, the raw materials remaining in the feed pipe and the hopper will form blocks and lose their fluidity. Especially the raw materials in the part with greater lower pressure form harder blocks. Workers can only use hammers to strike the feed pipe to shatter the block-shaped raw materials and make them flow down, which is very time-consuming and laborious. After a long time and many times like this, some factories simply abandon this hopper and instead add materials manually in accordance with the quantity, which obviously does not meet the requirements of safe and efficient automated production. Summary of the Invention

[0006] The problem to be solved by the present invention is: how to crush the block-shaped powder materials in the hopper so that the hopper for containing raw materials that are prone to forming blocks can be used normally.

[0007] In view of the above problems, the technical solution proposed by the present invention is: A hopper mechanism for producing frit powder that can be broken into pieces, comprising a hopper and a vertical discharge pipe with a cylindrical pipe hole connected to the lower port of the hopper. The hopper has a cylindrical inner cavity in the upper part and a conical inner cavity in the lower part. It also includes a milling cutter and a support body located below the discharge pipe for installing the milling cutter. A total material control switch is provided at the lower port of the discharge pipe. The top of the milling cutter has a cutter head assembly with a blade facing upward that can rotate and lift. The cutter head assembly can radially expand and contract the milling surface. During application, the total material control switch is opened, and the cutter head assembly mills and advances the blocky powder from the bottom upward through the pipe hole of the discharge pipe, so that the blocky powder from the discharge pipe to the hopper is milled and fragmented and then falls into the lower trough-shaped conveyor belt by itself.

[0008] The milling cutter further includes a power shaft and a power assembly for driving the rotation and lifting of the power shaft. The cutter head assembly is installed at the top of the power shaft, and the power assembly establishes a driving relationship with the power shaft at the lower end of the power shaft.

[0009] The cutter head assembly includes at least two cutter arms one, which are arranged at equal arc lengths on the outer peripheral surface of the top of the power shaft. The number of cutter arms two is equal to that of cutter arms one, and they are respectively arranged on the lower sides of the respective cutter arms one and can slide along their respective cutter arms one. The inner ends of cutter arms one and cutter arms two close to the power shaft are the inner ends, and the outer ends away from the power shaft are the outer ends. The inner ends of cutter arms one are connected to the power shaft, so that cutter arms one and the said cutter arms two can rotate with the power shaft. A retraction spring is provided between cutter arms two and cutter arms one, and a centrifugal hammer is provided on cutter arms two. The cutter arm three is arranged at the top of the power shaft, and cutter teeth are provided on the upper sides of cutter arms one, cutter arms two, and cutter arm three.

[0010] The inner end of the cutter arm one is hinged to the power shaft through a hinge shaft. The outer end of the cutter arm one can freely rotate up and down around the hinge shaft. The diameter of the circle drawn by the horizontal rotation of the outer end of the cutter arm one when the cutter arm one is in a horizontal state is larger than the pipe hole diameter of the discharge pipe and smaller than the inner diameter of the cylindrical inner cavity of the hopper.

[0011] The cutter arm one is horizontally arranged, and the inner end of the cutter arm one is fixedly connected to the power shaft. The cutter arm one is horizontally arranged, and the inner end of the cutter arm one is fixedly connected to the power shaft. The outer end of the cutter arm one is close to the inner wall of the pipe hole of the discharge pipe.

[0012] The support body includes a top seat plate and a bottom seat plate. Guide columns are provided between the top seat plate and the bottom seat plate. The guide columns are provided with guide grooves with a rectangular cross-section. Rack grooves are provided on the front side wall and the rear side wall of the guide groove, and racks are provided in the rack grooves. A notch is provided on the left side wall or the right side wall of the guide groove. An axial through hole is provided on the top seat plate, and the axial through hole is coaxial with the discharge pipe.

[0013] The power assembly includes a guiding block, a rotation driving unit for driving the power shaft to rotate, and a lifting driving unit for driving the power shaft to lift. The rotation driving unit includes a first motor and a transmission box. The guiding block is located in the guiding groove and can slide up and down. One end of the transmission box is fixed to the upper surface of the guiding block in the guiding groove and is connected to the lower end of the power shaft through internal gear meshing inside the box. The other end of the transmission box is connected to the output shaft of the first motor through internal gear meshing outside the notch. The lifting driving unit includes a second motor and a lifting seat. The lifting seat is located in the guiding groove below the guiding block, and has lifting driving gears meshing with the rack on its front and rear sides respectively. The second motor is arranged outside the notch and is connected to the lifting seat through the output shaft. When the lifting driving gears rotate to drive the lifting seat to rise, the guiding block is pushed up by the lifting seat. When the lifting driving gears rotate to drive the lifting seat to fall, all the milling cutter components above the guiding block follow and fall under the action of gravity.

[0014] On the upper surface of the top seat plate, a guiding sleeve for guiding the lifting of the power shaft is provided. The power shaft is sleeved in the pipe hole of the guiding sleeve and can slide up and down.

[0015] On the guiding sleeve below the blanking pipe, a material guide for catching the shredded powder and guiding it to the trough-shaped conveyor belt is provided. The material guide includes a connecting bottom plate at the bottom and a receiving barrel provided on the connecting bottom plate. The upper end opening of the receiving barrel is located directly below the lower port of the blanking pipe and there is a gap between them. There is an inclined surface deflector for the sliding of the powder at the lower part of the barrel hole of the receiving barrel. An outlet hole is provided on the side wall of the receiving barrel at the lowest point of the inclined surface deflector, and a material guide pipe communicating with the outlet hole is provided. Through holes for the power shaft to pass through are provided on both the inclined surface deflector and the connecting bottom plate. The inner diameter of the barrel hole of the receiving barrel is equal to the inner diameter of the pipe hole of the blanking pipe. The shortest distance from the upper port of the receiving barrel to the inclined surface deflector is greater than the vertical height of the cutter head assembly. The cutter head assembly under non-operating conditions is located in the barrel hole of the receiving barrel.

[0016] The total material control switch includes a switch panel formed by integrating a circular opening panel and a closing panel, a rotating sleeve provided on one side of the switch panel, and a support shaft for sleeving the rotating sleeve. The opening panel has a cutter passing hole with an inner diameter consistent with that of the pipe hole of the blanking pipe. The cutter passing hole has an annular sealing ring edge on the surrounding opening panel. The lower end of the support shaft is fixed on the top seat plate. By rotating the switch panel, the closing panel can enter the gap between the receiving barrel and the blanking pipe to block the blanking pipe. By continuing to rotate the switch panel, the cutter passing hole of the opening panel can be aligned with the pipe hole of the blanking pipe, and its sealing ring edge is exactly located between the pipe wall of the blanking pipe and the barrel wall of the receiving barrel to block the gap between the pipe wall of the blanking pipe and the barrel wall of the receiving barrel.

[0017] Beneficial effects: The lumpy powder can be fragmented without knocking on the hopper device, and the cutter head assembly for fragmentation does not affect the normal flow of the un-lumped powder, enabling the hopper to be used normally; the overall equipment is vertically arranged and vertically moved within the hopper range, occupying a small horizontal space and not affecting the installation of other equipment; the operation control is simple and the maintenance is convenient. Description of the drawings

[0018] Figure 1 It is a three-dimensional schematic diagram of the hopper mechanism for crushing lumpy powder used in the production of enamel glaze according to the first embodiment; Figure 2 It is a cross-sectional schematic diagram of the hopper mechanism for crushing lumpy powder used in the production of enamel glaze according to the first embodiment; Figure 3 It is a plan schematic diagram of the milling cutter according to the first embodiment; Figure 4 It is a three-dimensional schematic diagram of the support body according to the first embodiment; Figure 5 It is a schematic diagram of the cutter head assembly in the orifice of the downcomer according to the first embodiment; Figure 6 It is a cross-sectional schematic diagram of the centrifugal hammer mounted on the second cutter arm according to the first embodiment; Figure 7 It is a structural schematic diagram of the second cutter arm and the sliding rod according to the first embodiment; Figure 8 It is a three-dimensional schematic diagram of the assembly of the first cutter arm, the second cutter arm and the centrifugal hammer, etc. according to the first embodiment; Figure 9 It is a schematic diagram of the working condition of the cutter head assembly according to the first embodiment. In the figure, it shows the cutter head assembly rotating and milling the lumped powder in the downcomer. The arrow A in the figure represents the rotation direction of the power shaft, the arrow B represents the upward movement of the power shaft, and F1 represents the centrifugal force formed by the centrifugal hammer, etc.; Figure 10 It is a schematic diagram of the force condition of the first cutter arm under the working condition when the cutter head assembly enters the conical inner cavity. The arrow A in the figure represents the rotation direction of the power shaft, the upward movement arrow B of the power shaft is not shown, the arrow F1 represents the centrifugal force formed by the centrifugal hammer, etc., F4 represents the tension formed by the hinge shaft on the first cutter arm, F5 represents the resultant force formed by the centrifugal force F1 and the tension F4, F6 represents the vertical component of F5, F3 represents the gravity received by the centrifugal hammer, etc. In the figure, F6 is greater than F3, and the outer end of the first cutter arm starts to rotate upward from the oblique downward direction, realizing the outward expansion of the first milling surface; Figure 11 For Figure 10 The force analysis schematic diagram, the larger F1 is, the larger F6 is; Figure 12Schematic diagram after the tool head assembly described in the first embodiment enters the conical inner cavity. In the figure, the centrifugal force F5 formed by the second tool arm and the centrifugal hammer is greater than the pulling force F2 of the retracting tension spring, and the second tool arm starts to slide outwards to realize the expansion of the second milling surface; Figure 13 Cross-sectional schematic diagram of the feeder described in the first embodiment; Figure 14 Schematic diagram of the tool head assembly retracting into the barrel hole of the receiving barrel after the hopper in the first embodiment completes batching. The figure shows that the total material control switch is closed; Figure 15 Stereoscopic schematic diagram of the power assembly described in the first embodiment assembled at the lower part of the support body; Figure 16 Partial cross-sectional schematic diagram of the power assembly described in the first embodiment assembled at the lower part of the support body; Figure 17 Cross-sectional schematic diagram of the guide post described in the first embodiment; Figure 18 Cross-sectional schematic diagram of the assembly relationship between the lifting drive unit and the guide groove described in the first embodiment; Figure 19 Cross-sectional schematic diagram of the assembly relationship between the rotation drive unit and the guide groove described in the first embodiment; Figure 20 Schematic diagram of the assembly relationship between the total material control switch, the blanking pipe and the feeder described in the first embodiment; Figure 21 Planar schematic diagram of the tool head assembly described in the second embodiment. The figure shows that the tool head assembly is in the barrel hole of the receiving barrel; Figure 22 Schematic diagram of the tool head assembly entering the conical inner cavity under the working condition of the second embodiment.

[0019] In the figure: 1. Hopper; 11. Cylindrical inner cavity; 12. Conical inner cavity; 2. Feeding pipe; 21. Pipe hole; 3. Milling cutter; 31. Tool head assembly; 311. First tool arm; 312. Second tool arm; 3121. Slide bar hole; 3122. Tension spring hole; 3123. Third tool arm; 313. Centrifugal hammer; 314. Retraction tension spring; 315. Slide bar seat; 316. Slide bar; 317. Hinge shaft; 318. Tool tooth; 319. Fixed pin; 32. Power assembly; 321. Guide block; 322. Rotating drive unit; 3221. First motor; 3222. First output shaft; 3223. Transmission box; 323. Lifting drive unit; 3231. Second motor; 3232. Second output shaft; 3233. Lifting seat; 3234. Lifting drive gear; 324. Buffer compression spring; 33. Power shaft; 4. Support body; 41. Top seat plate; 42. Guide post; 421. Guide groove; 4211. Notch; 43. Base plate; 44. Rack; 5. Total material control switch; 51. Switch panel; 511. Open panel; 5111. Tool passing hole; 5112. Sealing ring edge; 512. Close panel; 52. Rotating sleeve; 53. Support shaft; 6. Feeder; 61. Connecting bottom plate; 62. Material receiving cylinder; 63. Cylinder hole; 64. Inspection door; 65. Inclined deflector; 66. Discharge hole; 67. Feeding pipe; 68. Flow control valve; 7. Guide sleeve; 8. Gap; 9. Grooved conveyor belt; 10. Caked powder material. Detailed implementation mode

[0020] The present invention will be further described below in conjunction with embodiments and the drawings.

[0021] Embodiment 1:

[0022] As Figure 1As shown in Fig. 4, a hopper mechanism for producing enamel glaze that can be crushed into lumps of powder includes a hopper 1 and a vertical discharge pipe 2 with a cylindrical pipe hole connected to the lower port of the hopper 1. The hopper 1 has an upper cylindrical inner cavity 11 and a lower conical inner cavity 12. It is characterized in that: it also includes a milling cutter 3 and a support body 4 located below the discharge pipe 2 for installing the milling cutter 3. A total material control switch 5 is provided at the lower port of the discharge pipe 2. The top of the milling cutter 3 has a cutter head assembly 31 with the cutting edge facing upward that can rotate and lift. The cutter head assembly 31 can radially expand and contract the milling surface. During application, when the total material control switch 5 is opened, the cutter head assembly 31 mills and advances the lumps of powder from the bottom upward through the pipe hole 21 of the discharge pipe 2, so that the lumps of powder in the discharge pipe 2 to the hopper 1 are milled and crushed and then fall into the lower trough-shaped conveyor belt 9 by themselves. Since the cutter head assembly 31 can radially expand and contract the milling surface, during the upward milling and advancing process of the cutter head assembly 31, it can adapt to the change of the aperture from the discharge pipe 2 to the hopper 1 from small to large, ensuring that the powder caked on the wall can also be milled after the upper milling surface becomes larger. In this way, it solves the problem that in the existing hopper, when the powder in the hopper forms lumps, it is necessary to knock on the outer pipe to disperse the powder, and even knocking on the outer pipe cannot disperse the lumps of powder, resulting in the direct abandonment of the hopper.

[0023] The milling cutter 3 further includes a power shaft 33 and a power assembly 32 for driving the power shaft 33 to rotate and lift. The cutter head assembly 31 is installed at the top of the power shaft 33. The power assembly 32 establishes a driving relationship with the power shaft 33 at the lower end of the power shaft 33, which will be further explained later.

[0024] As Figure 5As shown in FIGS. 8, the cutter head assembly 31 includes a first cutter arm 311, a second cutter arm 312 and a third cutter arm 3123. There are at least two first cutter arms 311, which are arranged on the outer peripheral surface of the top end of the power shaft 33 at equal arc lengths. The number of the second cutter arms 33 is equal to that of the first cutter arms 311, and they are respectively arranged on the lower sides of the respective first cutter arms 311 and can slide along their respective first cutter arms 311. The ends of the first cutter arm 311 and the second cutter arm 312 close to the power shaft 33 are inner ends, and the ends far from the power shaft 33 are outer ends. The inner end of the first cutter arm 311 is connected to the power shaft 33, so that the first cutter arm 311 and the second cutter arm 312 can rotate with the power shaft 33. A retraction spring 314 is arranged between the second cutter arm 312 and the first cutter arm 311. A centrifugal weight 313 is arranged on the second cutter arm 312. The third cutter arm 3123 is arranged on the top end of the power shaft 33. Cutter teeth 318 are arranged on the upper side surfaces of the first cutter arm 311, the second cutter arm 312 and the third cutter arm 3123. During the application process, when the cutter head assembly 31 is located in the hole 21 of the blanking pipe 2 with the smallest diameter, the power shaft 33 rotates at a relatively low speed, and the first cutter arm 311 mills the caked powder in the hole 21 of the blanking pipe 2. The second cutter arm 312 rotates with its respective first cutter arm 311. Due to the relatively low speed, the pulling force F2 of the retraction spring 314 overcomes the centrifugal force F1 formed by the centrifugal weight 313 on the second cutter arm 312, so that the second cutter arm 312 still remains below the first cutter arm 311 and is still in a contracted state; see Figure 12 , when the cutter head assembly 31 enters the conical inner cavity 12 with a gradually increasing diameter from the hole 21 of the blanking pipe 2 with the smallest diameter, the power shaft 33 rotates at a relatively high speed, and the centrifugal force F1 formed by the centrifugal weight 313 on the second cutter arm 312 increases, which can overcome the pulling force F2 of the retraction spring 314 to make the second cutter arm 312 extend, and mill the caked powder in the outer ring area outside the first cutter arm 311. When the milling is completed and the rotation of the first cutter arm 311 is reduced or stopped, when the centrifugal force F1 formed by the centrifugal weight 313 on the second cutter arm 312 is reduced or disappears, the second cutter arm 312 is pulled back by the retraction spring 314 to complete the retraction of the second cutter arm, and the cutter head assembly can smoothly descend in the hole 21 of the blanking pipe 2.

[0025] The setting of the cutter teeth 318 is convenient for feeding the caked powder during milling. The cutter teeth 318 on the multiple first cutter arms 311 are arranged radially in a staggered manner, so that the cutter teeth 318 on the multiple first cutter arms 311 can be radially complementary, thereby forming a complete milling surface during milling.

[0026] Further, a hanging slide bar seat 315 is provided below the inner end of the first cutter arm 311. On the front end face of the slide bar seat 315, there are two upper and lower slide bars 316 extending parallel to the first cutter arm 311 towards the outer end. The second cutter arm 312 is provided with two upper and lower parallel slide bar holes 3121 along the length direction, and a tension spring hole 3122 is provided between the two slide bar holes 3121. The slide bar holes 3121 and the tension spring hole 3122 penetrate through the inner end section and the outer end face of the second cutter arm 312. The two slide bars 316 are respectively sleeved in the two slide bar holes 3121 of the second cutter arm 312 and can slide in the slide bar holes 3121. The retraction tension spring 314 is located in the tension spring hole 3122, its inner end is fixedly connected to the slide bar seat 315, and its outer end is fixed to the outer end of the tension spring hole 3122 through a fixing pin 319.

[0027] Preferably, only two first cutter arms 311 are provided.

[0028] As Figure 5 , 9 , 10, 12 show that in this embodiment, the inner end of the first cutter arm 311 is hingedly connected to the power shaft 33 through a hinge shaft 317. The outer end of the first cutter arm 311 can freely rotate up and down around the hinge shaft 317. The diameter of the circle drawn by the horizontal rotation of the outer end of the first cutter arm 311 when the first cutter arm 311 is in a horizontal state is larger than the aperture of the pipe hole 21 of the blanking pipe 2 and smaller than the inner diameter of the cylindrical inner cavity 11 of the hopper 1. In this way, when the cutter head assembly 31 is located in the pipe hole 21 of the blanking pipe 2 and the barrel hole 63 of the receiving barrel 62 (see Figure 13 , 14 ), the outer ends of the first cutter arm 311 and the second cutter arm 312 belonging to it are in a downward-sloping posture. In this way, the lengths of the first cutter arm 311 and the second cutter arm 312 can be significantly extended. When milling rises to the conical inner cavity 12 and the cylindrical inner cavity 11, the first cutter arm 311 and the second cutter arm 312 can obtain two outward extensions in the horizontal direction. The first is the outward extension from the obliquely downward posture to the horizontal posture of the first cutter arm 311, and the second is the outward extension of the horizontal extension of the second cutter arm 312.

[0029] It should be noted here that relying on the centrifugal force F1 can only make the first cutter arm 311 infinitely close to the horizontal posture, but actually it can never reach the true horizontal posture. The centrifugal force F1 is not provided separately by the centrifugal hammer 313 when rotating with the power shaft 33, but also includes the centrifugal force generated by the outer end part of the first cutter arm 311 itself and all components provided on the first cutter arm 311 when rotating with the power shaft 33.

[0030] As Figure 9 shows, when the first cutter arm 311 mills and rises in the pipe hole 21 of the blanking pipe 2 in an obliquely downward posture, the centrifugal force F1 of the centrifugal hammer 313 makes the first cutter arm 311 press the cutter teeth 318 tightly against the milling surface of the agglomerated powder 10, and the milling surface is a conical surface.

[0031] As Figure 10 shown in FIGS. 11, when the cutter arm 311 rises during milling in the conical inner cavity 12 and the cylindrical inner cavity 11, the centrifugal force F1 of the centrifugal hammer 313 causes the cutter arm 311 to obtain an upward component force F6, and the component force F6 overcomes the gravity F3 acting on the outer end of the cutter arm 311, causing the cutter arm 311 and its associated cutter arm 312 to approach a horizontal attitude and pressing the cutter teeth 318 tightly against the milling surface of the agglomerated powder 10, which is a conical surface close to a plane.

[0032] Figure 11 is a simplified force diagram of the outer end of the cutter arm 311 rotating upward and approaching a horizontal state as it rotates with the power shaft 33. In the figure: FI is the centrifugal force of the centrifugal hammer 313, the cutter arm 312, and the outer end of the cutter arm 311 when rotating with the power shaft 33; F3 is the gravity acting on the centrifugal hammer 313, the cutter arm 312, and the outer end of the cutter arm 311; F4 is the tension force of the centrifugal hammer 313, the cutter arm 312, and the outer end of the cutter arm 311 acting on the hinge shaft 317 through the cutter arm 311; F5 is the resultant force formed by FI and F4; F6 is the vertical component force of F5. Before the cutter arm 311 reaches a horizontal attitude, the larger FI is, the larger F6 is.

[0033] O is the mass point of the centrifugal hammer 313, the cutter arm 312, and the outer end of the cutter arm 311.

[0034] As Figure 1 、 2 shown in FIGS. 4, the above-mentioned support 4 includes a top seat plate 41 and a bottom seat plate 43. A guide post 42 is provided between the top seat plate 41 and the bottom seat plate 43. A guide groove 421 with a rectangular cross-section is provided on the guide post 42. Rack grooves are provided on the front side wall and the rear side wall of the guide groove 421. A rack 44 is provided in the rack grooves. A notch 4211 is provided on the left side wall or the right side wall of the guide groove 421. An axial through hole is provided on the top seat plate 41, and the axial through hole is coaxial with the blanking pipe 2.

[0035] As Figure 15As shown in FIGS. 19, the above-mentioned power assembly 32 includes a guide block 321, a rotation drive unit 322 for driving the power shaft 33 to rotate, and a lifting drive unit 323 for driving the power shaft 33 to move up and down. The rotation drive unit 322 includes a first motor 3221 and a transmission box 3223. The guide block 321 is located in the guide groove 421 and can slide up and down. One end of the transmission box 3223 is fixed to the upper surface of the guide block 321 in the guide groove 421 and is connected to the lower end of the power shaft 33 through (internal gear meshing in the box). The other end of the transmission box 3223 is connected to the output shaft 3222 of the first motor 3221 through internal gear meshing outside the notch 4211. The first motor 3221 drives the power shaft 33 to rotate through the transmission box 3223. The lifting drive unit 323 includes a second motor 3231 and a lifting seat 3233. The lifting seat 3233 is located in the guide groove 421 below the guide block 321. Lifting drive gears 3234 meshing with the rack 44 are respectively provided on the front and rear sides thereof. The second motor 3231 is provided outside the notch 4211 and is connected to the lifting seat 3233 through the output shaft 3232. When the lifting drive gears 3234 rotate to drive the lifting seat 3233 to rise, the guide block 321 is pushed to rise by the lifting seat 3233. When the lifting drive gears 3234 rotate to drive the lifting seat 3233 to descend, all the milling cutter 3 components above the guide block 321 follow and descend under the action of gravity, so as to avoid the arm 312 of the tool head assembly 31 not being fully retracted and the arm 311 and the arm 312 of the tool head assembly 31 being forcibly pulled downward by the descending lifting seat 3233 and damaged when they are stuck above the conical inner cavity 12.

[0036] In order to make the force obtained by the tool head assembly 31 during the milling upward process continuous, a buffer compression spring 324 is provided between the lifting seat 3233 and the guide block 321. When the lifting seat 3233 rises, the guide block 321 is pushed upward through the buffer compression spring 324. In this way, it can also avoid the tool head assembly being forced to push upward and damaged when the lifting seat starts, and can make the force for pushing the tool head assembly 31 upward a relatively flexible force.

[0037] The above-mentioned internal gear meshing in the box is a conventional technical means, which means that transmission gears are provided in both the transmission box 3223 and the lifting seat 3233. Internal spline teeth or external spline teeth or gears are provided at the outer ends of the output shaft 3222, the output shaft 3232, and the lower end of the power shaft 33. The specific setting method is determined according to needs. Since it is a conventional technical means, no specific description and illustration are given in this article.

[0038] As Figure 2 、 14 shown, further, a guide sleeve 7 for guiding the lifting of the power shaft 33 is provided on the upper surface of the top seat plate 41. The power shaft 33 is sleeved in the tube hole of the guide sleeve 7 and can slide up and down.

[0039] AsFigure 13 , 14 As shown, on the guiding sleeve 7 below the blanking pipe 2, there is a material guide 6 that catches the shredded powder and guides it to the trough-shaped conveyor belt 9. The material guide 6 includes a connecting bottom plate 61 at the bottom and a receiving cylinder 62 provided on the connecting bottom plate 61. The upper end opening of the receiving cylinder 62 is directly below the lower port of the blanking pipe 2 and there is a gap 8 between them. Inside the barrel hole 63 of the receiving cylinder 62, there is an inclined deflector plate 65 for the sliding of the powder. At the lowest point of the inclined deflector plate 65, there is a discharge hole 66 on the side wall of the receiving cylinder 62 and a material guide pipe 67 communicating with the discharge hole 66. Through holes for the power shaft to pass through are provided on both the inclined deflector plate 65 and the connecting bottom plate 61. In this way, the milled and falling powder will fall into the receiving cylinder 62 and slide into the material guide pipe 67 from the inclined deflector plate 65, and the material guide pipe 67 will guide it into the lower trough-shaped conveyor belt 9.

[0040] To facilitate the cleaning inside the material guide pipe 67, the material guide pipe 67 can be detachably set in multiple sections.

[0041] A flow control valve 68 is provided inside the material guide pipe 67.

[0042] The aperture of the barrel hole 63 of the above-mentioned receiving cylinder 62 is equal to the aperture of the pipe hole 21 of the blanking pipe 2. The shortest distance from the upper port of the receiving cylinder 62 to the inclined deflector plate 65 is greater than the vertical height of the cutter head assembly 31. Under non-operating conditions, the cutter head assembly 31 is located inside the barrel hole 63 of the receiving cylinder 62, and after the cutter head assembly 31 completes the previous operation, it falls back into the barrel hole 63 of the receiving cylinder 62.

[0043] To facilitate the maintenance before the start of the cutter head assembly 31, an inspection door 64 that can be opened and closed is provided on the side wall of the receiving cylinder 62 (see Figure 1 ).

[0044] As Figure 20 shown, the above-mentioned total material control switch 5 includes a switch panel 51 formed by integrating a circular open panel 511 and a closed panel 512, a rotating sleeve 52 provided on one side of the switch panel 51, and a support shaft 53 for sleeving the rotating sleeve 52. The open panel 511 has a cutter passing hole 5111 with an aperture consistent with the aperture of the pipe hole 21 of the blanking pipe 2. The cutter passing hole 5111 has an annular sealing ring edge 5112 on the surrounding open panel 511. The lower end of the support shaft 53 is fixed on the top seat plate 41. By rotating the switch panel 51, the closed panel 512 can be made to enter the gap 8 between the receiving cylinder 62 and the blanking pipe 2 to block the blanking pipe 2. By continuing to rotate the switch panel 51, the cutter passing hole 5111 of the open panel 511 can be made to align with the pipe hole 21 of the blanking pipe 2, and its sealing ring edge 5112 is exactly located between the pipe wall of the blanking pipe 2 and the barrel wall of the receiving cylinder 62 to block the gap 8 between the pipe wall of the blanking pipe 2 and the barrel wall of the receiving cylinder 62, so as to form a relatively closed pipeline between the pipe hole 21 of the blanking pipe 2 and the barrel hole 63 of the receiving cylinder 62 that will not leak materials outward.

[0045] After the cutter head assembly 31 completes the previous operation and falls back into the barrel hole 63 of the material receiving barrel 62, if the task of feeding the hopper into the trough-shaped conveyor belt 9 is also just completed, the total material control switch 5 can be turned off. If further feeding is still required, unagglomerated powder can be continuously poured into the hopper 1 for normal feeding. The cutter head assembly 31 located in the material receiving barrel 62 does not prevent the unagglomerated powder 10 from flowing downward.

[0046] Embodiment 2:

[0047] As Figure 21 、 22 shown, the difference from Embodiment 1 is that the first cutter arm 311 is horizontally arranged. The inner end of the first cutter arm 311 is fixedly connected to the power shaft 33. The outer end of the first cutter arm 311 is close to the inner wall of the pipe hole 21 of the blanking pipe 2, ensuring that when the first cutter arm 311 rotates, it can both mill the wall-adhering agglomerated powder and ensure that the outer end of the first cutter arm 311 does not contact and rub against the inner wall of the pipe hole 21 of the blanking pipe 2.

[0048] Since the aperture of the pipe hole 21 of the blanking pipe 2 is small, the length of the first cutter arm 311 designed in this way is limited, which determines that the length of the second cutter arm 312 is also limited. Therefore, this embodiment is applicable to the case where the ratio of the aperture of the pipe hole 21 of the blanking pipe 2 to the diameter of the cylindrical inner cavity 11 of the hopper 1 is relatively large.

[0049] The above embodiments are only used to describe the present invention more clearly and should not be regarded as limiting the protection scope covered by the present invention. Any equivalent form of modification should be regarded as falling within the protection scope covered by the present invention.

Claims

1. A hopper mechanism for producing enamel glaze and capable of crushing into blocky powder materials, comprising a hopper (1) and a vertical feeding pipe (2) with a cylindrical pipe hole communicating with the lower port of the hopper (1). The hopper (1) has an upper cylindrical inner cavity (11) and a lower conical inner cavity (12), and is characterized in that: It further includes a milling cutter (3) and a support body (4) located below the blanking pipe (2) for installing the milling cutter (3). A total material control switch (5) is provided at the lower port of the blanking pipe (2). The top of the milling cutter (3) has a cutter head assembly (31) with a knife edge facing upward that can rotate and lift. The cutter head assembly (31) can radially expand and contract the milling surface. During application, the total material control switch (5) is opened, and the cutter head assembly (31) mills and advances the bulk powder from the bottom upward through the pipe hole (21) at the lower port of the blanking pipe (2), so that the bulk powder in the blanking pipe (2) to the hopper (1) is milled and fragmented and then automatically falls into the lower trough-shaped conveyor belt (9).

2. The hopper mechanism for crushable block powder used in the production of enamel glaze according to claim 1, characterized in that: The milling cutter (3) further includes a power shaft (33) and a power assembly (32) for driving the rotation and lifting of the power shaft (33). The cutter head assembly (31) is installed at the top end of the power shaft (33), and the power assembly (32) establishes a driving relationship with the power shaft (33) at the lower end of the power shaft (33).

3. The hopper mechanism for crushable bulk powder used in the production of enamel glaze according to claim 2, characterized in that: The cutter head assembly (31) includes at least two cutter arms one (311), cutter arms two (312), and cutter arms three (3123). The cutter arms one (311) are arranged at equal arc lengths on the outer peripheral surface of the top end of the power shaft (33). The number of cutter arms two (312) is equal to that of the cutter arms one (311), and they are respectively arranged on the lower sides of the respective cutter arms one (311) and can slide along their respective cutter arms one (311). The inner ends of the cutter arms one (311) and the cutter arms two (312) close to the power shaft (33) are inner ends, and the outer ends away from the power shaft (33) are outer ends. The inner ends of the cutter arms one (311) are connected to the power shaft (33), so that the cutter arms one (311) and the cutter arms two (312) can rotate with the power shaft (33). A retraction tension spring (314) is provided between the cutter arms two (312) and the cutter arms one (311). Centrifugal hammers (313) are provided on the cutter arms two (312). The cutter arms three (3123) are arranged at the top end of the power shaft (33). Knife teeth (318) are provided on the upper sides of the cutter arms one (311), the cutter arms two (312), and the cutter arms three (3123).

4. The hopper mechanism for crushable bulk powder used in the production of enamel glaze according to claim 3, characterized in that: The inner end of the cutter arm one (311) is hinged to the power shaft (33) through a hinge shaft (317). The outer end of the cutter arm one (311) can freely rotate up and down around the hinge shaft (317). The diameter of the circle drawn by the horizontal rotation of the outer end of the cutter arm one (311) when the cutter arm one (311) is in a horizontal state is larger than the aperture of the pipe hole (21) of the blanking pipe (2) and smaller than the inner diameter of the cylindrical inner cavity (11) of the hopper (1).

5. The hopper mechanism for crushable block powder used in the production of enamel glaze according to claim 3, characterized in that: The cutter arm one (311) is horizontally arranged. The inner end of the cutter arm one (311) is fixedly connected to the power shaft (33), and the outer end of the cutter arm one (311) is close to the inner wall of the pipe hole (21) of the blanking pipe (2).

6. The hopper mechanism for crushable bulk powder used in the production of enamel glaze according to claim 2, characterized in that: The support body (4) includes a top seat plate (41) and a bottom seat plate (43). Guide columns (42) are provided between the top seat plate (41) and the bottom seat plate (43). Guide grooves (421) with a rectangular cross-section are provided on the guide columns. Rack grooves are provided on the front side wall and the rear side wall of the guide groove (421), and racks (44) are provided in the rack grooves. A notch (4211) is provided on the left side wall or the right side wall of the guide groove (421). An axial through hole is provided on the top seat plate (41), and the axial through hole is coaxial with the blanking pipe (2).

7. The hopper mechanism for crushable block powder used in the production of enamel glaze according to claim 2, characterized in that: The power assembly (32) includes a guide block (321), a rotation drive unit (322) for driving the power shaft (33) to rotate, and a lifting drive unit (323) for driving the power shaft (33) to lift. The rotation drive unit (322) includes a first motor (3221) and a transmission box (3223). The guide block (321) is located in the guide groove (421) and can slide up and down. One end of the transmission box (3223) is fixed to the upper surface of the guide block (321) in the guide groove (421) and is connected to the lower end of the power shaft (33) through internal tooth meshing in the box. The other end of the transmission box (3223) is connected to the output shaft one (3222) of the first motor (3221) through internal tooth meshing outside the notch (4211). The lifting drive unit (323) includes a second motor (3231) and a lifting seat (3233). The lifting seat (3233) is located in the guide groove (421) below the guide block (321), and lifting drive gears (3234) meshing with the racks (44) are respectively provided on the front and rear sides thereof. The second motor (3231) is provided outside the notch (4211) and is connected to the lifting seat (3233) through the output shaft two (3232). When the lifting drive gears (3234) rotate to drive the lifting seat (3233) to rise, the guide block (321) is pushed to rise by the lifting seat (3233). When the lifting drive gears (3234) rotate to drive the lifting seat (3233) to descend, all the components of the milling cutter (3) above the guide block (321) follow and descend under the action of gravity.

8. The hopper mechanism for crushable bulk powder used in the production of enamel glaze according to claim 6, characterized in that: A guide sleeve (7) for guiding the lifting of the power shaft (33) is provided on the upper surface of the top seat plate (41). The power shaft (33) is sleeved in the pipe hole of the guide sleeve (7) and can slide up and down.

9. The hopper mechanism for crushable bulk powder used in the production of enamel glaze according to claim 8, characterized in that: On the guiding sleeve (7) below the blanking pipe (2), there is a material guide (6) that catches the shredded powder and guides it to the trough-shaped conveyor belt (9). The material guide (6) includes a connecting bottom plate (61) at the bottom and a material receiving cylinder (62) provided on the connecting bottom plate (61). The upper end opening of the material receiving cylinder (62) is directly below the lower port of the blanking pipe (2) and there is a gap (8) between them. In the lower part of the barrel hole (63) of the material receiving cylinder (62), there is an inclined surface guide plate (65) for the sliding of the powder. An outlet hole (66) is provided on the side wall of the material receiving cylinder (62) at the lowest point of the inclined surface guide plate (65), and a material guide pipe (67) communicating with the outlet hole (66) is provided. Through holes for the power shaft to pass through are provided on both the inclined surface guide plate (65) and the connecting bottom plate (61); the aperture of the barrel hole (63) of the material receiving cylinder (62) is equal to the aperture of the pipe hole (21) of the blanking pipe (2). The shortest distance from the upper port of the material receiving cylinder (62) to the inclined surface guide plate (65) is greater than the vertical height of the cutter head assembly (31). Under non-operating conditions, the cutter head assembly (31) is located in the barrel hole (63) of the material receiving cylinder (62).

10. The hopper mechanism for crushable block powder used in the production of enamel glaze according to claim 9, characterized in that: The total material control switch (5) includes a switch panel (51) formed by integrating a circular open panel (511) and a closed panel (512), a rotating sleeve (52) provided on one side of the switch panel (51), and a support shaft (53) for sleeving the rotating sleeve (52). The open panel (511) has a cutter passing hole (5111) with an aperture consistent with that of the pipe hole (21) of the blanking pipe (2). The cutter passing hole (5111) has an annular sealing ring edge (5112) on the surrounding open panel (511). The lower end of the support shaft (53) is fixed on the top seat plate (41). By rotating the switch panel (51), the closed panel (512) can enter the gap (8) between the material receiving cylinder (62) and the blanking pipe (2) to block the blanking pipe (2). By continuing to rotate the switch panel (51), the cutter passing hole (5111) of the open panel (511) can be aligned with the pipe hole (21) of the blanking pipe (2), and its sealing ring edge (5112) is exactly located between the pipe wall of the blanking pipe (2) and the barrel wall of the material receiving cylinder (62) to block the gap between the pipe wall of the blanking pipe (2) and the barrel wall of the material receiving cylinder (62).

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