Protective mechanism of ore color sorter

Abstract

The utility model discloses a kind of protection mechanism of ore color sorter, specifically related to ore color sorter field, install at the top of color sorter, including the feed bin being located above color sorter and being connected with color sorter, chute being connected with the feed bin bottom end of color sorter, feed bin includes lower bin and upper bin that is liftable above lower bin, upper bin is connected with telescopic pipe spare between lower bin, the inside of lower bin is equipped with lifting drive element that drives upper bin liftable, the upper surface of upper bin is provided with the feed hopper recessed to the inside of feed bin, the inside of feed bin is provided with switch mechanism, the communication of feed hopper and the inside of feed bin is controlled, the utility model can alleviate ore falling impact by buffering mechanism and realize uniform feeding protection equipment, and pass through upper bin lifting linkage to realize that feed groove is dynamically dredged and does not need additional power, overall structure is reliable and convenient to maintain, can satisfy the efficient protection of ore color selection and feeding demand.

Description

Technical Field

[0001] This utility model relates to the field of ore color sorting machines, and more specifically, to a protective mechanism for an ore color sorting machine. Background Technology

[0002] In ore color sorting operations, the adaptability, stability, and protection of the feeding system directly affect sorting efficiency and equipment lifespan. Existing ore color sorters mostly have fixed-height feeding hoppers, which cannot flexibly adapt to ore conveying equipment of different heights, requiring additional modifications for connection, making operation cumbersome. Furthermore, the lack of precise feeding control mechanisms means that a sudden influx of large amounts of ore can easily clog the feeding chute, requiring manual shutdown for cleaning and affecting operational continuity. Simultaneously, the high impact force of falling ore can directly impact the chute, causing equipment wear, and uneven feeding reduces sorting accuracy. In addition, some feeding structures have poor sealing, leading to ore dust spillage and environmental pollution; the lack of automatic unblocking functions after blockage further increases maintenance costs and operational burden, making it difficult to meet the demands of efficient and stable ore color sorting operations. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a protective mechanism for an ore color sorter, installed on the top of the color sorter, including a feed bin located above the color sorter and connected to it. The bottom end of the feed bin is connected to the chute of the color sorter. The feed bin includes a lower bin and an upper bin that moves up and down above the lower bin. A telescopic pipe is connected between the upper bin and the lower bin. A lifting drive is installed inside the lower bin to drive the upper bin to move up and down. A feed funnel recessed into the feed bin is provided on the upper surface of the upper bin. A switching mechanism is provided inside the feed bin to control the communication between the feed funnel and the inside of the feed bin. A buffer funnel is provided below the switching mechanism. The bottom end of the buffer funnel is connected to the chute. A rotating ore buffer mechanism is provided inside the buffer funnel. The ore to be sorted enters the buffer funnel inside the feed bin from the feed funnel and is conveyed to the chute by the rotating ore buffer mechanism.

[0004] In a preferred embodiment, the lifting drive includes a first servo push rod and a limiting tube installed at the bottom of the lower chamber cavity. A lifting limit rod is inserted into the limiting tube. The top ends of the first servo push rod output shaft and the limiting rod are both fixed to the lower surface of the feed funnel.

[0005] In a preferred embodiment, the bottom end of the feeding funnel is provided with a through feeding groove, and the switching mechanism includes a switch plate attached to the bottom of the feeding groove. Both ends of the switch plate are provided with clamps fixed to the lower surface of the feeding funnel. The bottom end of the clamps is provided with a baffle extending towards the middle of the feeding funnel, and both ends of the switch plate are attached to the surface of the baffle.

[0006] In a preferred embodiment, a second servo push rod is provided on one side of the switch plate, and a fixing rod is connected between the second servo push rod and the lower surface of the feed funnel. The output shaft end of the second servo push rod is fixed at the edge of the switch plate.

[0007] In a preferred embodiment, the buffer hopper includes a lower hopper body and an upper hopper body. The lower hopper body is fixed at the bottom of the lower chamber cavity and located directly above the chute. The upper hopper body opens to both sides at a greater angle than the lower hopper body. The upper hopper body is fixedly installed on the top of the lower hopper body and the two are integrated. The ore buffer mechanism is located inside the upper hopper body.

[0008] In a preferred embodiment, the ore buffer mechanism includes a rotating shaft that passes through the upper bucket body. A servo motor that drives the rotating shaft to rotate inside the upper bucket body is installed on the outer wall of the upper bucket body. Several receiving blades are installed on the outer wall of the rotating shaft. The edges of the receiving blades are bent and extended toward one side of the rotating shaft. The bending direction of the edges of the receiving blades is opposite to the direction of rotation of the rotating shaft. The rotating shaft and several receiving blades are located directly below the feed trough.

[0009] In a preferred embodiment, support rods are installed at the edges of both sides of the top of the upper bucket body. The support rods are located inside the clamping plates at both ends of the switch plate. A drain rod is connected to the top of the support rod. The length of the drain rod is the same as the length of the feed hopper and the two ends match. When the switch plate is attached to the bottom of the feed trough, the drain rod is located below the switch plate.

[0010] The technical effects and advantages of this utility model are as follows:

[0011] This utility model uses a buffer mechanism to reduce the impact of falling ore and achieve uniform feeding to protect the equipment. The unblocking rod achieves dynamic unblocking of the feeding chute with the help of the upper bin lifting linkage without the need for additional power. The overall structure is reliable and easy to maintain, and can meet the high-efficiency protection and feeding requirements of ore color sorting. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the interior of the feed hopper of this utility model. Figure 1 ;

[0014] Figure 3 This is a schematic diagram of the interior of the feed hopper of this utility model. Figure 2 ;

[0015] Figure 4 This is a schematic diagram of the transverse cross-section of the feed hopper of this utility model;

[0016] Figure 5 This is a schematic diagram of the transverse cross-section of the feed hopper when the switch plate of this utility model is opened;

[0017] Figure 6 This is a schematic diagram of the unblocking rod when the switch plate of this utility model is opened.

[0018] Explanation of reference numerals in the attached diagram: 1 Color sorter, 2 Feed hopper, 3 Chute, 4 Upper hopper, 5 Lower hopper, 6 Telescopic pipe, 7 Feed hopper, 8 First servo push rod, 9 Limiting tube, 10 Limiting rod, 11 Feed trough, 12 Switch plate, 13 Clamping plate, 14 Baffle, 15 Second servo push rod, 16 Fixing rod, 17 Lower bucket body, 18 Upper bucket body, 19 Rotating shaft, 20 Servo motor, 21 Receiving blade, 22 Support rod, 23 Unblocking rod. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical applications of the present invention, and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose.

[0020] As shown in Figures 1-6, a protective mechanism for an ore color sorter is installed on top of the color sorter 1. It includes a feed bin 2 located above the color sorter 1 and connected to it. The bottom end of the feed bin 2 is connected to the chute 3 of the color sorter 1. The feed bin 2 includes a lower bin 5 and an upper bin 4 that moves up and down above the lower bin 5. A telescopic pipe 6 connects the upper bin 4 and the lower bin 5. A lifting drive is installed inside the lower bin 5 to drive the upper bin 4 to move up and down. A feed funnel 7 that is recessed into the feed bin 2 is provided on the upper surface of the upper bin 4. A switch mechanism is provided inside the feed bin 2 to control the communication between the feed funnel 7 and the inside of the feed bin 2. A buffer funnel is provided below the switch mechanism. The bottom end of the buffer funnel is connected to the chute 3. A rotating ore buffer mechanism is provided inside the buffer funnel. The ore to be sorted enters the buffer funnel inside the feed bin 2 from the feed funnel 7 and is conveyed to the chute 3 by the rotating ore buffer mechanism.

[0021] Based on the above, during installation, the lower chamber 5 of the feed bin 2 is fixed to the top of the color sorter 1, so that the bottom of the buffer funnel is aligned with the chute 3 of the color sorter 1. When it is necessary to adapt to ore conveying equipment of different heights, the lifting drive drives the upper chamber 4 to rise and fall vertically along the lower chamber 5. The telescopic pipe 6 between the upper chamber 4 and the lower chamber 5 stretches or contracts synchronously, and the sealing gap prevents dust from overflowing. The upper chamber 4 drives the feed funnel 7 on its surface to rise and fall synchronously to the appropriate height. When the ore is fed, the switching mechanism opens the connecting channel between the feed funnel 7 and the buffer funnel. The ore falls from the feed funnel 7 into the buffer funnel. The ore buffering mechanism inside the buffer funnel rotates and flips, smoothly receiving and conveying the ore to the chute 3, and finally entering the color sorter 1 to complete the color sorting. Throughout the process, the lifting of the feed bin 2, the opening and closing of the switch, and the buffer conveying work together to achieve orderly feeding and protection of the ore.

[0022] Furthermore, the overall structure integrates lifting adaptation, switch control, and buffer conveying functions, allowing it to adapt to different feeding scenarios without modifying the color sorter 1 itself; the telescopic pipe 6 ensures sealing during lifting and reduces dust pollution; the buffer mechanism prevents ore from directly impacting the chute 3, balancing protection and feeding efficiency.

[0023] The lifting drive includes a first servo push rod 8 and a limiting tube 9 installed at the bottom of the inner cavity of the lower chamber 5. A lifting limit rod 10 is inserted into the limiting tube 9. The output shaft of the first servo push rod 8 and the top of the limiting rod 10 are both fixed to the lower surface of the feed funnel 7.

[0024] Based on the above, when the height of the upper chamber 4 needs to be adjusted, the first servo push rod 8 receives a control signal, and its output shaft extends or retracts, driving the feed hopper 7 fixed at the top to move vertically in sync. The feed hopper 7 drives the upper chamber 4 to rise and fall accordingly. At the same time, the limiting rod 10 in the limiting tube 9 rises and falls synchronously with the feed hopper 7. The limiting rod 10 only moves along the axial direction of the limiting tube 9, restricting the movement direction of the feed hopper 7, ensuring that the lifting and lowering process of the upper chamber 4 is smooth, and preventing the feed hopper 7 from being misaligned with the buffer hopper due to the tilt of the upper chamber 4, which would affect the ore falling path.

[0025] The bottom end of the feeding hopper 7 is provided with a through feeding groove 11. The switching mechanism includes a switch plate 12 attached to the bottom of the feeding groove 11. Both ends of the switch plate 12 are provided with clamping plates 13 fixed to the lower surface of the feeding hopper 7. The bottom end of the clamping plate 13 is provided with a baffle 14 extending toward the middle of the feeding hopper 7. Both ends of the switch plate 12 are attached to the surface of the baffle 14.

[0026] Based on the above, in the initial state, the switch plate 12 is completely attached to the bottom of the feed trough 11 at the bottom of the feed funnel 7, blocking the ore falling channel; the clamp plate 13 is fixed on the lower surface of the feed funnel 7, and the baffle 14 at its bottom extends towards the middle of the feed funnel 7. The two ends of the switch plate 12 are tightly attached to the inner surface of the baffle 14, and the baffle 14 forms a lateral limit on the switch plate 12 to prevent the switch plate 12 from deviating from directly below the feed trough 11 when sliding; when feeding is required, the switch plate 12 slides along the surface of the baffle 14 and gradually opens the feed trough 11, and the ore falls from the feed trough 11 into the buffer funnel; when feeding is paused, the switch plate 12 returns to its original position and is attached to the bottom of the feed trough 11, and the baffle 14 continues to restrict the position of the switch plate 12 to ensure that the channel is tightly sealed.

[0027] A second servo push rod 15 is provided on one side of the switch plate 12. A fixing rod 16 connects the second servo push rod 15 to the lower surface of the feed hopper 7. The output shaft end of the second servo push rod 15 is fixed at the edge of the switch plate 12. When controlling the opening and closing of the feed trough 11, the fixing rod 16 stably fixes the second servo push rod 15 to the lower surface of the feed hopper 7. After receiving the signal, the output shaft of the second servo push rod 15 extends or retracts in the direction away from or towards the feed trough 11. When the output shaft extends or retracts, it drives the switch plate 12 fixed at its end to move synchronously. The switch plate 12 slides along the surface of the baffle 14. When the output shaft extends, the switch plate 12 slides to open the feed trough 11. The size of the opening of the feed trough 11 can be controlled by adjusting the extension or retraction of the output shaft. For example, the opening can be reduced to prevent material jamming when large pieces of ore are removed. When the output shaft retracts, the switch plate 12 resets and seals the feed trough 11, thereby achieving precise control of the feeding rate.

[0028] The buffer hopper includes a lower hopper body 17 and an upper hopper body 18. The lower hopper body 17 is fixed at the bottom of the inner cavity of the lower chamber 5 and is located directly above the chute 3. The upper hopper body 18 opens to both sides at a greater angle than the lower hopper body 17 opens to both sides. The upper hopper body 18 is fixedly installed on the top of the lower hopper body 17 and the two are integrated. The ore buffer mechanism is located inside the upper hopper body 18.

[0029] Based on the above, after the ore falls from the feed chute 11, the upper bucket 18, due to its large opening angle, can expand the receiving range and ensure that all the ore falls into the buffer hopper. The upper bucket 18 and the lower bucket 17 are integrated, with a stable structure and no splicing gaps, preventing the ore from getting stuck in the gaps. After the ore is temporarily stored in the upper bucket 18, it naturally flows to the lower bucket 17 with a smaller opening angle. The lower bucket 17 is fixed at the bottom of the lower compartment 5 and faces the chute 3 of the color sorter 1, guiding the ore to fall accurately into the chute 3. At the same time, the upper bucket 18 provides installation space for the internal ore buffer mechanism, ensuring that the buffer mechanism can receive the ore in the upper bucket 18.

[0030] Furthermore, the upper bucket body 18 has a large opening angle to ensure comprehensive material reception, while the lower bucket body 17 has a small opening angle for precise flow guidance; the integrated structure has no splicing gaps to avoid ore jamming; the lower bucket body 17 is directly opposite the chute 3 to prevent ore from deviating from the material drop path and improve feeding accuracy.

[0031] The ore buffer mechanism includes a rotating shaft 19 that passes through the upper bucket body 18. A servo motor 20 is installed on the outer wall of the upper bucket body 18 to drive the rotating shaft 19 to rotate inside the upper bucket body 18. Several receiving blades 21 are installed on the outer wall of the rotating shaft 19. The edges of the receiving blades 21 bend and extend toward one side of the rotating shaft 19. The bending direction of the edges of the receiving blades 21 is opposite to the direction of rotation of the rotating shaft 19. The rotating shaft 19 and several receiving blades 21 are located directly below the feed trough 11.

[0032] Based on the above, when the ore falls into the upper bucket 18, the servo motor 20 starts and drives the rotating shaft 19 that runs through the upper bucket 18 to rotate at a constant speed. The rotating shaft 19 drives the receiving blades 21 on the outer wall to rotate synchronously. The receiving blades 21 are located directly below the feed chute 11 to ensure that all falling ore is received. The edge of the receiving blades 21 bends towards the rotating shaft 19, and the bending direction is opposite to the rotation of the rotating shaft 19. If the rotating shaft 19 rotates clockwise, the edge of the blade bends to the left. This design allows the blades to steadily "catch" the falling ore, transforming the vertical falling motion of the ore into a smooth circular motion, greatly slowing down the falling speed of the ore and avoiding impact on the lower bucket 17 or the chute 3. The blades continue to rotate, conveying the received ore one by one to the lower bucket 17, realizing uniform and low-speed conveying of the ore.

[0033] Furthermore, the curved design and steering mechanism of the receiving blade 21 effectively buffer the impact of ore and protect the chute 3 and hopper; uniform rotation ensures even feeding and prevents ore accumulation from affecting color sorting accuracy; the servo motor 20 provides stable drive and is suitable for high-frequency ore conveying requirements.

[0034] Support rods 22 are installed on the edges of both sides of the top of the upper bucket body 18. The support rods 22 are located inside the clamping plates 13 at both ends of the switch plate 12. The top of the support rods 22 is connected to a drain rod 23. The length of the drain rod 23 is the same as the length of the feed hopper 2 and the two ends match. When the switch plate 12 is attached to the bottom of the feed trough 11, the drain rod 23 is located below the switch plate 12.

[0035] Based on the above, the support rod 22 stably fixes the unblocking rod 23 to the top of the upper bucket body 18. The length of the unblocking rod 23 is the same as that of the feeding bin 2 and it is located below the switch plate 12 and directly below the feeding chute 11. If the ore blocks the feeding chute 11 during feeding, such as lumpy ore powder or large pieces of ore, the upper bin 4 will continuously rise and fall under the drive of the lifting drive component. The upper bin 4 will drive the feeding funnel 7 and the feeding chute 11 to move up and down synchronously, while the unblocking rod 23 will remain in a fixed position, along with the upper bucket body 18 and the lower bin 5. The feeding chute 11 and the unblocking rod 23 will remain in a fixed position. Relative motion is generated: When the upper chamber 4 rises, the feed chute 11 moves downward relative to the unblocking rod 23, and the unblocking rod 23 exerts a downward pushing force on the blocked ore at the bottom of the feed chute 11; when the upper chamber 4 falls, the feed chute 11 moves upward relative to the unblocking rod 23, and the unblocking rod 23 extends upward into the feed chute 11, inserts into the gap of the blocked ore to break up the clumps or push up large pieces of ore, so as to achieve dynamic unblocking of the entire length of the feed chute 11; when the switch plate 12 is attached to the bottom of the feed chute 11, the unblocking rod 23 is located below it and does not affect the blocking action of the switch plate 12.

[0036] Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A protection mechanism of an ore color sorter, which is installed on the top of the color sorter and comprises a feed bin connected to the color sorter above the color sorter, the bottom end of the feed bin being connected to the chute of the color sorter, characterized in that, The feeding hopper includes a lower hopper and an upper hopper that moves up and down above the lower hopper. A telescopic pipe connects the upper and lower hoppers. A lifting drive is installed inside the lower hopper to move the upper hopper up and down. A feeding funnel recessed into the feeding hopper is provided on the upper surface of the upper hopper. A switching mechanism is provided inside the feeding hopper to control the connection between the feeding funnel and the inside of the feeding hopper. A buffer funnel is provided below the switching mechanism. The bottom end of the buffer funnel is connected to a chute. A rotating ore buffer mechanism is provided inside the buffer funnel. The ore to be sorted enters the buffer funnel inside the feeding hopper from the feeding funnel and is conveyed to the chute by the rotating ore buffer mechanism.

2. A protection mechanism for an ore color sorter according to claim 1, characterized in that: The lifting drive includes a first servo push rod and a limiting tube installed at the bottom of the lower chamber cavity. A lifting limit rod is inserted into the limiting tube. The top ends of the first servo push rod output shaft and the limiting rod are both fixed to the lower surface of the feed funnel.

3. A protection mechanism for an ore color sorter according to claim 1, characterized in that: The bottom of the feeding funnel has a through feeding groove. The switching mechanism includes a switch plate attached to the bottom of the feeding groove. Both ends of the switch plate are provided with clamps fixed to the lower surface of the feeding funnel. The bottom end of the clamps is provided with a baffle extending towards the middle of the feeding funnel. Both ends of the switch plate are attached to the surface of the baffle.

4. A protection mechanism for an ore color sorter according to claim 3, characterized in that: A second servo push rod is provided on one side of the switch plate. A fixing rod is connected between the second servo push rod and the lower surface of the feed hopper. The end of the output shaft of the second servo push rod is fixed at the edge of the switch plate.

5. A protection mechanism for an ore color sorter according to claim 3, characterized in that: The buffer hopper includes a lower hopper body and an upper hopper body. The lower hopper body is fixed at the bottom of the lower chamber cavity and located directly above the chute. The upper hopper body opens to both sides at a greater angle than the lower hopper body. The upper hopper body is fixedly installed on the top of the lower hopper body and the two are integrated. The ore buffer mechanism is located inside the upper hopper body.

6. A protection mechanism for an ore color sorter according to claim 5, characterized in that: The ore buffer mechanism includes a rotating shaft that passes through the upper bucket body. A servo motor that drives the rotating shaft to rotate inside the upper bucket body is installed on the outer wall of the upper bucket body. Several receiving blades are installed on the outer wall of the rotating shaft. The edges of the receiving blades are bent and extended toward one side of the rotating shaft. The bending direction of the edges of the receiving blades is opposite to the direction of rotation of the rotating shaft. The rotating shaft and several receiving blades are located directly below the feed trough.

7. A protection mechanism for an ore color sorter according to claim 5, characterized in that: Support rods are installed on the edges of both sides of the top of the upper bucket body. The support rods are located inside the clamps at both ends of the switch plate. A drain rod is connected to the top of the support rod. The length of the drain rod is the same as the length of the feed hopper and the two ends match. When the switch plate is attached to the bottom of the feed trough, the drain rod is located below the switch plate.

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