A discharge mechanism for a cemented carbide bar grinding equipment
By introducing a buffer structure and a material guiding device into the grinding equipment, the collision problem during the discharge of cemented carbide bars was solved, realizing automated material sorting and discharge, improving the discharge qualification rate and transportation stability, and reducing labor costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FUJIAN ZHIFENG PRECISION TECHNOLOGY CO LTD
- Filing Date
- 2025-07-10
- Publication Date
- 2026-06-30
AI Technical Summary
During the discharge process of existing grinding equipment, cemented carbide rods are easily damaged by collisions with the material box or fallen rods, and they are also prone to mutual collisions when piled up, resulting in a decrease in the pass rate. Manual material separation is required, which is costly.
Design a discharge mechanism that includes a buffer structure, a material guiding device, and a discharge device. By using a buffer curtain to buffer deceleration, a material guiding component to guide the material, and automated stacking, the mechanism avoids collisions of the bars and achieves automatic material distribution and discharge.
It improves the pass rate and transportation stability of cemented carbide bars, reduces manual intervention, saves manpower and costs, and ensures output efficiency and stability.
Smart Images
Figure CN224425085U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of material discharge mechanisms, specifically to a material discharge mechanism for a cemented carbide bar grinding equipment. Background Technology
[0002] Hard alloys are alloy materials made from hard compounds of refractory metals and binder metals through powder metallurgy. Tungsten carbide rods are a type of high-hardness, high-strength alloy material made primarily from hard alloy tungsten carbide, along with other precious metals and binder phases, and produced through powder metallurgy pressing and sintering. They are widely used in national production and processing sectors.
[0003] Existing grinding equipment grinds and polishes cemented carbide bars via a grinding mechanism, then outputs them via a conveyor belt. An inclined baffle prevents the bars from falling from the side of the conveyor belt onto an inclined guide table, where they roll down into a collection box for final discharge. However, for high-hardness cemented carbide bars, the rolling descent into the collection box can easily result in collisions with the box or other fallen bars, leading to a decrease in the bar yield. Furthermore, bars piled in the collection box are prone to collisions and damage during transport. Manual sorting and placement into specific compartments are necessary to ensure a high yield after transport, but this sorting and discharge method requires significant manpower and costs.
[0004] The research objective of this utility model is to design a discharge mechanism for a cemented carbide bar grinding equipment to address the problems existing in the prior art. Utility Model Content
[0005] To address the problems existing in the prior art, this utility model provides a discharge mechanism for a cemented carbide bar grinding equipment, which can effectively solve the problems existing in the prior art.
[0006] The technical solution of this utility model is:
[0007] A discharge mechanism for a cemented carbide bar grinding equipment includes:
[0008] The feeding device includes an inclined feeding platform. The upper end of the feeding platform is connected to the discharge port of the corresponding grinding mechanism. Several bars roll down one by one through the discharge port onto the feeding platform. The feeding platform is provided with a buffer structure for buffering the rolling of the bars.
[0009] The discharge device includes a transverse drive device and several receiving trays. Each receiving tray has several rows of receiving grooves arranged horizontally at intervals on its top. The transverse drive device is used to drive each receiving tray to move horizontally step by step to the rows of receiving grooves corresponding to the lower end of the discharge platform.
[0010] The material guiding device includes a longitudinal movement drive device and a material guiding component located between the lower end of the unloading platform and the receiving tray. The material guiding component includes a material guiding part that extends longitudinally and is blocked at both ends of the receiving groove. The longitudinal movement drive device is used to drive the material guiding component to move longitudinally step by step to the receiving grooves of a row of receiving grooves, where the ends of the material guiding parts are exposed step by step.
[0011] Furthermore, the buffer structure includes several sets of flexible buffer curtains suspended longitudinally at intervals above the unloading platform, each set of buffer curtains including several flexible buffer elements distributed laterally; the bar is buffered and decelerated by several of the buffer curtains during its rolling down the unloading platform.
[0012] Furthermore, several buffer curtains are located in the lower half of the unloading platform and there are three sets of them. The lower end of each buffer member forms a spherical buffer part with a gap between it and the unloading platform. During the process of the bar rolling down the unloading platform, it is buffered, decelerated and straightened by several buffer parts.
[0013] Furthermore, the number of the material guiding parts is set to two. The top of the material guiding parts is inclined to form a gentle slope surface with the height gradually decreasing in the direction away from the unloading platform. The unloading platform has baffles with a spacing adapted to the bar on both sides in the lateral direction. The two material guiding parts have limiting parts that are coaxial with the longitudinal direction of the two baffles on the lateral opposite sides. During the process of the bar rolling down the unloading platform, it is limited and guided by the two baffles, and is buffered, decelerated and straightened by several buffer parts before entering the top of the two gentle slope surfaces and being limited and guided by the two limiting parts.
[0014] Furthermore, the transverse drive device is configured as a feeding line corresponding to the unloading platform in the middle, and the discharge device also includes an upper tray device located at one end of the feeding line. The upper tray device includes a telescopic device, a top material seat, and a material box for storing a plurality of stacked receiving trays. Each layer of receiving trays has a plurality of slots on its side. The telescopic end of the telescopic device is used to extend and insert into the slots to receive a plurality of receiving trays. The top material seat is located below the material box and is driven to rise and fall by the lifting drive device. The receiving trays filled with the bars returning from the feeding line are stacked layer by layer into the material box of the upper tray device through the lifting of the top material seat and the telescopic extension of the telescopic end.
[0015] Furthermore, the discharge device also includes a lower plate device located at the other end of the feeding line and having the same structure as the upper plate device. Several layers of receiving trays in the material box of the lower plate device are all empty trays and are discharged layer by layer onto the feeding line through the lifting and lowering of the top material seat and the extension and retraction of the telescopic end.
[0016] Furthermore, the material box includes two U-shaped shells spaced apart, forming a pick-and-place channel between the two U-shaped shells for picking up and placing a plurality of the receiving trays, and the top openings of the two U-shaped shells are provided.
[0017] Therefore, the beneficial effects of this utility model are:
[0018] 1. By adding a buffer structure, the speed of the bar stock along the unloading platform rollers is buffered and decelerated, thus avoiding damage caused by collisions with subsequent devices. Furthermore, with the addition of a guiding device and an unloading device, after the receiving tray moves laterally to the lower end of the unloading platform corresponding to the single-row receiving groove, it can be longitudinally moved step by step by the guiding component to expose the receiving grooves in a row, with the end of the guiding part corresponding to the exposed receiving grooves step by step. This allows the bar stock rolling down after buffering and deceleration to roll one by one along the top of the guiding part into the exposed receiving groove. Thus, the shielding and guiding of the guiding component allows the bar stock to be filled into the receiving groove one by one without contact between them, avoiding damage caused by collisions between the bar stock. This greatly improves the qualified rate of cemented carbide bar stock output and enables automatic material filling of cemented carbide bar stock, so as to ensure the stability of subsequent transportation. No manual material filling is required, saving a lot of manpower and costs.
[0019] 2. By setting up multiple sets of buffer curtains, a multi-layer buffering effect is achieved on the basis of avoiding wear on the hard alloy surface through flexible contact. This improves the buffering and deceleration effect on the rolling speed of the bar along the unloading table. Furthermore, the bar that wobbles during the rolling process can be straightened after contacting the horizontally set rubber curtains layer by layer. This improves the stability of the bar as it rolls into the top of the guide section, thereby ensuring its stability as it rolls into the receiving groove and minimizing collisions between it and the receiving tray.
[0020] 3. During the rolling process of the bar stock along the unloading table, it is buffered, decelerated and straightened by several buffer parts. By adding spherical buffer parts, the weight of the lower end of the buffer part is slightly increased on the basis of flexible contact and buffering of the bar stock, thereby improving the deceleration and buffering effect of the buffer curtain on the bar stock. Furthermore, when the bar stock comes into contact with the last set of buffer curtains, the rolling direction is fully straightened, thereby improving the stability of the buffer curtain in straightening the rolling direction of the bar stock.
[0021] 4. As the bar rolls down the unloading platform, it is guided and limited by two baffles, and then buffered and decelerated by several buffer sections before being straightened and guided by two limiting sections at the top of the two gentle slopes. The two baffles improve the guiding effect of the unloading platform, and the two limiting sections form an L-shape with openings facing each other, thus improving the stability of the bar rolling down the top of the limiting sections and into the receiving trough. Furthermore, the gentle slopes ensure that the bar rolls down the top of the guiding sections into the receiving trough at a relatively low speed, improving the stability of the bar filling.
[0022] 5. The receiving trays after the bars are filled can be automatically stacked and recycled, realizing a discharge method of receiving and stacking for storage. Furthermore, this method of stacking receiving trays through the cooperation of a telescopic device and a top material seat improves stacking stability, ensuring that the bars stored in the receiving slots of the receiving trays will not jump and collide with and be damaged by the upper receiving trays during the stacking process. This greatly improves the discharge efficiency and stability of the bars while ensuring discharge and transportation stability. Simultaneously, the addition of a lower tray device allows several layers of receiving trays in the lower tray device's material box to be discharged layer by layer onto the feeding line through the lifting of the top material seat and the extension of the telescopic end. Specifically, after the top material seat supports several receiving trays and the telescopic end retracts, the top material seat drives several receiving trays down one layer, and the telescopic end extends to support multiple layers of receiving trays except for the bottom layer. The top material seat then drives the bottom layer of receiving trays down onto the feeding line. This enables automatic feeding of several receiving trays, achieving full automation of receiving tray loading and unloading, thereby improving the bar material discharge efficiency. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the discharge mechanism for a cemented carbide bar grinding equipment.
[0024] Figure 2 This is a schematic diagram of the grinding mechanism, the feeding device, and the guiding device.
[0025] Figure 3 This is a schematic diagram of the feeding device and the guiding device.
[0026] Figure 4 This is a schematic diagram of the discharge device.
[0027] Figure 5 This is a partial cross-sectional view of the upper plate assembly. Detailed Implementation
[0028] To facilitate understanding by those skilled in the art, the structure of this utility model will now be described in further detail with reference to the accompanying drawings:
[0029] refer to Figure 1-5 A discharge mechanism for a cemented carbide bar grinding equipment, comprising:
[0030] The feeding device 1 includes an inclined feeding platform 11. The upper end of the feeding platform 11 is connected to the discharge port of the corresponding grinding mechanism 4. Several bars roll down one by one through the discharge port to the feeding platform 11. The feeding platform 11 is provided with a buffer structure for buffering the rolling of the bars.
[0031] The discharge device 2 includes a transverse drive device and a plurality of receiving trays 21. Each receiving tray 21 has a plurality of horizontally spaced receiving grooves 211 on its top. The transverse drive device is used to drive each receiving tray 21 to move horizontally step by step to the plurality of receiving grooves 211 corresponding to the lower end of the unloading platform 11.
[0032] The material guiding device 3 includes a longitudinal movement drive device 31 and a material guiding component 32 located between the lower end of the unloading platform 11 and the receiving tray 21. The material guiding component 32 includes a material guiding part 321 extending longitudinally and blocking the transverse ends of the receiving groove 211. The longitudinal movement drive device 31 is used to drive the material guiding component 32 to move longitudinally step by step to expose the receiving grooves 211 in a row, and the ends of the material guiding part 321 are exposed step by step to the corresponding exposed receiving grooves 211.
[0033] The above structure, through the addition of a buffer structure, buffers and decelerates the speed of the bar along the rollers of the unloading platform 11, thereby preventing the bar from being damaged by collision with subsequent devices. Furthermore, with the addition of the guiding device 3 and the discharging device 2, after the receiving tray 21 moves laterally to the lower end of the unloading platform 11 corresponding to the single row of receiving grooves 211, it can be progressively longitudinally moved by the guiding component 32 to the exposed receiving grooves 211 in a row, with the end of the guiding part 321 progressively corresponding to the exposed receiving grooves 211, thus achieving buffering. After deceleration, the rolling bars can roll one by one along the top of the guide section 321 into the exposed receiving groove 211. Thus, the guide member 32 blocks and guides the bars to be filled into the receiving groove 211 one by one without contact between them, so as to avoid collision and damage between the bars. This greatly improves the qualified rate of cemented carbide bars and can realize automatic material filling of cemented carbide bars, so as to ensure the stability of subsequent transportation. No manual material filling is required, saving a lot of manpower and costs.
[0034] To improve the buffering effect of the buffer structure, the buffer structure includes several sets of flexible buffer curtains 12 suspended longitudinally above the unloading platform 11 at intervals. Each set of buffer curtains 12 includes several flexible buffer elements 121 distributed laterally. The bar is buffered and decelerated by the buffer curtains 12 during its roll along the unloading platform 11. Specifically, the buffer elements 121 can be made of flexible materials such as rubber. The above structure, through the arrangement of multiple sets of buffer curtains 12, achieves a multi-layer buffering effect while avoiding wear on the hard alloy surface through flexible contact. This improves the buffering and deceleration effect on the rolling speed of the bar along the unloading platform 11. Furthermore, the bar, which may wobble during the roll, can straighten its rolling direction after contacting the laterally arranged rubber curtains layer by layer. This improves the stability of the bar as it rolls into the top of the guide section 321, thereby ensuring its stability as it rolls into the receiving groove 211 and minimizing collisions between it and the receiving tray 21.
[0035] To improve the stability of the buffer curtain 12 in aligning the rolling direction of the bar, several buffer curtains 12 are located in the lower half of the unloading platform 11, and there are three sets of them. The lower end of each buffer member 121 forms a spherical buffer part 122 that is spaced apart from the unloading platform 11. The above structure allows the bar to be buffered, decelerated, and aligned by several buffer parts 122 during its rolling along the unloading platform 11. By adding the spherical buffer part 122, the weight of the lower end of the buffer member 121 is slightly increased on the basis of flexible contact and buffering of the bar, thereby improving the deceleration and buffering effect of the buffer curtain 12 on the bar. Furthermore, when the bar comes into contact with the last set of buffer curtains 12, the rolling direction is fully aligned, thus improving the stability of the buffer curtain 12 in aligning the rolling direction of the bar.
[0036] To improve the guiding effect of the unloading platform 11 and the guiding section 321, two guiding sections 321 are provided. The top of the guiding section 321 is inclined to form a gentle slope 3211 with a gradually decreasing height in the direction away from the unloading platform 11. The unloading platform 11 has baffles 111 with a spacing adapted to the bar on both sides in the lateral direction. The two guiding sections 321 have limiting sections 322 that are coaxial with the longitudinal direction of the two baffles 111 on the lateral side that are far apart from each other in the lateral direction. With the above structure, the bar is limited and guided by the two baffles 111 during the rolling process along the unloading platform 11, and is buffered, decelerated and straightened by several buffer sections 122 before entering the top of the two gentle slopes 3211 and being limited and guided by the two limiting sections 322. The two baffles 111 improve the material guiding effect of the unloading platform 11. The two limiting parts 322 make the cross-sections of the two guiding parts 321 and the limiting parts 322 form an L-shape with openings facing each other, thereby improving the stability of the bar rolling along the top of the two limiting parts 322 and falling into the receiving groove 211. Furthermore, the gentle slope 3211 ensures that the bar has a small speed when rolling along the top of the guiding part 321 into the receiving groove 211, thus improving the stability of the bar filling.
[0037] To achieve automated material discharge after filling the receiving tray 21, the transverse drive device is configured as a feeding line 22 corresponding to the unloading platform 11 in the middle. The discharge device 2 also includes an upper tray device 23 located at one end of the feeding line 22. The upper tray device 23 includes a telescopic device 231, a top material seat 232, and a material box 233 for storing a plurality of stacked receiving trays 21. Each layer of receiving trays 21 has a plurality of slots 212 on its side. The telescopic end of the telescopic device 231 is used to extend and insert into the slots 212 to receive a plurality of receiving trays 21. The top material seat 232... Located below the material box 233 and driven to rise and fall by the lifting drive device 234; the above structure allows the receiving tray 21 filled with the bar material, which is returned by the feeding line 22, to rise and stack layer by layer into the material box 233 of the upper plate device 23 through the lifting of the top material seat 232 and the extension and retraction of the telescopic end. Specifically, after the feeding line 22 returns the receiving tray 21 filled with the bar material to the material box 233 below the upper plate device 23, the top material seat 232 first pushes the corresponding retracted telescopic end of the receiving tray 21 slot 212, and then the telescopic end extends out to insert into the slot 212 and receive the receiving tray 21. This allows for the automatic stacking and recycling of the receiving tray 21 after the bar stock is filled, realizing a material receiving and stacking storage method. Furthermore, this method of stacking the receiving tray 21 through the cooperation of the telescopic device 231 and the top material seat 232 can improve stacking stability and ensure that the bar stock stored in the receiving groove 211 of the receiving tray 21 will not jump and collide with the upper receiving tray 21 during the stacking process. Under the premise of ensuring the stability of bar stock discharge and transportation, the discharge efficiency and discharge stability of the bar stock are greatly improved.
[0038] To achieve automatic feeding of several receiving trays 21 in an empty state, the discharging device 2 also includes a lower tray device 24 located at the other end of the feeding line 22 and having the same structure as the upper tray device 23. Several layers of receiving trays 21 in the material box 233 of the lower tray device 24 are all in an empty state. The above structure allows the several layers of receiving trays 21 in the material box 233 of the lower tray device 24 to be fed onto the feeding line 22 layer by layer through the lifting and lowering of the top material seat 232 and the extension and retraction of the telescopic end. Specifically, after the top material seat 232 supports several receiving trays 21 and the telescopic end retracts, the top material seat 232 drives several receiving trays 21 to descend one layer and the telescopic end extends to support multiple layers of receiving trays 21 except for the bottom layer. The top material seat 232 then drives the bottom layer of receiving trays 21 to descend onto the feeding line 22. This enables automatic feeding of several receiving trays 21, achieving full automation of the feeding and discharging of the receiving trays 21, thereby improving the discharge efficiency of the bar stock.
[0039] To improve the stability of the bars in the receiving tray 21, the top and bottom of the receiving tray 21 are provided with flexible layers. This prevents the bars from jumping and colliding with the bottom of the upper receiving tray 21 and being damaged during transportation after the bars are filled and stacked in the receiving tray 21.
[0040] To further automate the feeding and discharging of the receiving tray 21, the material box 233 includes two U-shaped shells spaced apart, forming a pick-and-place channel 2331 between the two U-shaped shells for picking up and placing several receiving trays 21. The tops of the two U-shaped shells are open. This structure, by designing the material box 233 with a top opening and a pick-and-place channel 2331 on the side, allows existing robotic arms or other mechanisms used for picking and placing materials to extract several empty and stacked receiving trays 21 into the material box 233 of the lower platen device 24, or to extract several filled and stacked receiving trays 21 from the material box 233 of the upper platen device 23 and output them. This further automates the feeding and discharging of the receiving tray 21, i.e., fully automates the discharge of the rods, improving the efficiency of rod discharge.
[0041] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A discharge mechanism for a cemented carbide bar grinding equipment, characterized in that, include: The feeding device (1) includes an inclined feeding platform (11). The upper end of the feeding platform (11) is connected to the discharge port of the corresponding grinding mechanism (4). Several bars roll down to the feeding platform (11) one by one through the discharge port. The feeding platform (11) is provided with a buffer structure for buffering the rolling of the bars. The discharge device (2) includes a transverse drive device and a plurality of receiving trays (21). Each receiving tray (21) has a plurality of horizontally spaced receiving grooves (211) on its top. The transverse drive device is used to drive each receiving tray (21) to move horizontally step by step to the lower end of the plurality of receiving grooves (211) corresponding to the lower end of the unloading platform (11). The material guiding device (3) includes a longitudinal movement drive device (31) and a material guiding component (32) located between the lower end of the unloading platform (11) and the receiving tray (21). The material guiding component (32) includes a material guiding part (321) extending longitudinally and blocking the transverse ends of the receiving groove (211). The longitudinal movement drive device (31) is used to drive the material guiding component (32) to move longitudinally step by step to expose the receiving groove (211) in a row, and the end of the material guiding part (321) is exposed step by step to the receiving groove (211).
2. The discharge mechanism for a cemented carbide bar grinding equipment as described in claim 1, characterized in that, The buffer structure includes several sets of flexible buffer curtains (12) that are suspended longitudinally at intervals above the unloading platform (11). Each set of buffer curtains (12) includes several flexible buffer elements (121) that are distributed laterally. The bar is buffered and decelerated by several buffer curtains (12) during the rolling process along the unloading platform (11).
3. The discharge mechanism for a cemented carbide bar grinding equipment as described in claim 2, characterized in that, Several buffer curtains (12) are located in the lower half of the unloading platform (11) and there are three sets of them. The lower end of each buffer member (121) forms a spherical buffer part (122) with a gap between it and the unloading platform (11). The bar is buffered, decelerated and straightened by several buffer parts (122) during the rolling process along the unloading platform (11).
4. The discharge mechanism for a cemented carbide bar grinding equipment as described in claim 3, characterized in that, The number of the guide section (321) is set to two. The top of the guide section (321) is inclined to form a gentle slope (3211) with the height gradually decreasing in the direction away from the unloading platform (11). The unloading platform (11) has baffles (111) with a spacing adapted to the bar on both sides in the lateral direction. The two guide sections (321) have limiting parts (322) that are coaxial with the longitudinal direction of the two baffles (111) on the lateral opposite sides. During the process of the bar rolling down the unloading platform (11), it is limited and guided by the two baffles (111), and is buffered, decelerated and straightened by several buffer parts (122) before entering the top of the two gentle slopes (3211) and limited and guided by the two limiting parts (322).
5. The discharge mechanism for a cemented carbide bar grinding equipment as described in claim 1, characterized in that, The transverse drive device is configured as a feeding line (22) corresponding to the unloading platform (11) in the middle. The discharge device (2) also includes an upper tray device (23) located at one end of the feeding line (22). The upper tray device (23) includes a telescopic device (231), a top material seat (232), and a material box (233) for storing several stacked receiving trays (21). Each layer of receiving trays (21) has several slots (212) on its side. The telescopic end of the device (231) is used to extend and insert into the slot (212) to receive a plurality of the receiving trays (21). The top material seat (232) is located below the material box (233) and is driven to rise and fall by the lifting drive device (234). The receiving trays (21) filled with the rods that return from the feeding line (22) are stacked layer by layer into the material box (233) of the upper plate device (23) through the lifting of the top material seat (232) and the extension and retraction of the telescopic end.
6. The discharge mechanism for a cemented carbide bar grinding equipment as described in claim 5, characterized in that, The discharge device (2) also includes a lower plate device (24) located at the other end of the feeding line (22) and having the same structure as the upper plate device (23). The material box (233) of the lower plate device (24) contains several layers of receiving trays (21) that are all empty and are fed onto the feeding line (22) layer by layer through the lifting and lowering of the top material seat (232) and the extension and retraction of the telescopic end.
7. The discharge mechanism for a cemented carbide bar grinding equipment as described in claim 6, characterized in that, The material box (233) includes two U-shaped shells spaced apart, and a pick-and-place channel (2331) for picking up and placing a plurality of the receiving trays (21) is formed between the two U-shaped shells. The top openings of the two U-shaped shells are provided.