A feed mechanism for a sintering furnace
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO ZHAOBAO MAGNET
- Filing Date
- 2025-07-31
- Publication Date
- 2026-06-05
Smart Images

Figure CN224327562U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of feeding mechanisms, specifically a feeding mechanism for a sintering furnace. Background Technology
[0002] When feeding materials into a vacuum sintering furnace, a feeding machine is required. The feeding machine is composed of a moving support, a hoist, and a feeding platform. The moving support is manually pushed close to the furnace body in the track. The material tray containing the material is placed on the feeding platform. The hoist drives the feeding platform to rise to the height inside the furnace and inserts it into the furnace body as it moves. Then it falls down and places the material tray on the support inside the furnace.
[0003] The existing patent authorization announcement number CN221992377U discloses a feeding mechanism for a vacuum sintering furnace. By stacking the material tray on the top of the feeding platform away from the end of the U-shaped support rod, the upper support cylinder is driven to be positioned above the material rack by the sliding and lifting of the lower support cylinder on the lower support rod and the sliding of the sleeve on the U-shaped support rod. The upper support rod slides in the upper support cylinder so that the upper support plate can be located at the end of the material tray away from the lower support cylinder and contact it. When the upper support rod moves, the screw rod II moves together in the adjusting groove II. When it moves to the appropriate position, the upper support rod is limited by the threaded connection between the adjusting cap II and the screw rod II.
[0004] The aforementioned patent requires separate operation of the left and right adjustment screws 1, 2, and 1 adjustment cap, which is cumbersome and inconvenient to use. Furthermore, when the trays are stacked on the feeding platform, the bottom of the trays contacts the feeding platform, resulting in significant friction when pushing and placing them into the sintering furnace, making it quite laborious to use. Utility Model Content
[0005] The purpose of this utility model is to provide a feeding mechanism for a sintering furnace to solve the problems mentioned in the background art, which require separate operation of the left and right adjusting screws 1, 2 and 1, which is cumbersome and inconvenient to use. In addition, when the trays are stacked on the feeding platform and the bottom of the trays are in contact with the feeding platform, the friction is large when pushing and picking them up into the sintering furnace, making it difficult to use.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a feeding mechanism for a sintering furnace, including a feeding platform. A mounting groove 1 is provided at the front of the top of the feeding platform, and two mounting grooves 3 and 2, staggered vertically, are provided at the rear inside the feeding platform. Limiting components are movably installed inside the mounting grooves 1, 2, and 3. An opening is provided at the top of the feeding platform, and a supporting component is movably installed inside the opening. The limiting component includes a drive shaft, a bidirectional screw, and a threaded rod. The drive shaft is rotatably installed inside the mounting groove 2. The bidirectional screw is rotatably installed inside the first mounting slot, and the threaded rod is rotatably installed inside the third mounting slot. A driven bevel gear is fixedly installed on the outside of the bidirectional screw. A driving bevel gear located in the first mounting slot and meshing with the driven bevel gear is fixedly installed at the front end of the drive shaft. A symmetrical slider 1 is installed on the external thread of the bidirectional screw. A limit plate is fixedly installed on the top of the slider 1. The third mounting slot passes through the top of the feeding table. A slider 2 is connected to the external thread of the threaded rod. A stop is fixedly installed on the top of the slider 2.
[0007] Preferably, the limiting plate has an "L" shaped cross-section, and the abutment has an inverted "T" shaped cross-section.
[0008] Preferably, a reinforcing rib connected to the slider is fixedly installed on the outer side of the limiting plate.
[0009] Preferably, both the drive shaft and the threaded rod have a handwheel fixedly installed at their rear ends on the rear side of the feeding table.
[0010] Preferably, a guide groove is provided symmetrically arranged on the rear of the top of the feeding platform, and a guide block is fixedly connected to the bottom of the support frame and is locked in the guide groove.
[0011] Preferably, the support assembly includes a fixed plate fixedly installed at the bottom of the feeding table, a support frame corresponding to the opening fixedly installed on the top of the fixed plate, a rotating shaft rotatably installed on the inner side of the support frame, and a roller located inside the opening fixedly installed on the outer side of the rotating shaft.
[0012] Preferably, the openings are arranged in multiple sets at equal intervals along the three directions of the mounting groove in a symmetrical manner.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] 1. The rotating drive shaft drives the bidirectional screw to rotate through the drive bevel gear and the driven bevel gear. This drives the sliders on the left and right sides of the screw to move the limiting plate and lock it in place at the front corner of the tray. The rotating screw rod drives the slider to move the abutment against the back of the tray, thereby limiting the tray between the limiting plate and the abutment, preventing the tray from shifting and falling. This simplifies the operation and improves the ease of use.
[0015] 2. The material tray is installed at the bottom of the feeding platform by a fixed plate, and the rollers installed in the support frame extend above the opening. The bottom of the material tray contacts the rollers. After the restriction on the material tray is lifted, the material tray can be pushed into the furnace body from above the feeding platform. The rolling of the rollers reduces the friction and facilitates operation. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0017] Figure 2 This is an exploded view of part of the structure of the limiting component of this utility model;
[0018] Figure 3 This is a cross-sectional structural diagram of the feeding platform of this utility model;
[0019] Figure 4 This is a top view of the structure of this utility model;
[0020] Figure 5 This is an exploded view of the structure of the support component of this utility model.
[0021] In the diagram: 1. Feeding platform; 11. Mounting slot one; 12. Mounting slot two; 13. Mounting slot three; 2. Limiting assembly; 21. Drive shaft; 22. Bidirectional screw; 23. Threaded rod; 24. Driven bevel gear; 25. Driving bevel gear; 26. Slider one; 27. Limiting plate; 28. Slider two; 29. Support frame; 3. Through port; 4. Support assembly; 41. Fixing plate; 42. Support frame; 43. Rotating shaft; 44. Roller; 5. Guide groove. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5This utility model provides a technical solution: a feeding mechanism for a sintering furnace, including a feeding platform 1. A mounting groove 11 is provided at the front of the top of the feeding platform 1. A mounting groove 3 13 and a mounting groove 2 12, staggered vertically, are provided at the rear inside the feeding platform 1. A limiting component 2 is movably installed inside the mounting grooves 11, 22, and 3. A through-hole 3 is provided at the top of the feeding platform 1, and a support component 4 is movably installed inside the through-hole 3. The limiting component 2 includes a drive shaft 21, a bidirectional screw 22, and a threaded rod 23. The drive shaft 21 is rotatably installed inside the mounting groove 2 12, the bidirectional screw 22 is rotatably installed inside the mounting groove 11, and the threaded rod 23 is rotatably installed inside the mounting groove 3 13. A driven bevel gear 24 is fixedly installed on the outside of the bidirectional screw 22. A gear located at the front end of the drive shaft 21 is fixedly installed... The drive bevel gear 25, which meshes with the driven bevel gear 24, is installed in the mounting slot 11. The external threads of the bidirectional screw 22 are fitted with symmetrical sliders 26. A limit plate 27 is fixedly installed on the top of the slider 26. The mounting slot 13 extends through the top of the feeding table 1. The external threads of the threaded rod 23 are connected to slider 28. A stop 29 is fixedly installed on the top of slider 28. The rotating drive shaft 21 drives the bidirectional screw 22 to rotate through the drive bevel gear 25 and the driven bevel gear 24. This drives the sliders 26 on the left and right sides to move and lock the limit plates 27 in opposite directions to the front corner of the tray. The rotating threaded rod 23 drives slider 28 to move the stop 29 against the rear side of the tray, thereby limiting the tray between the limit plates 27 and the stop 29, preventing the tray from shifting and falling. This simplifies the operation and improves ease of use.
[0024] The limiting plate 27 has an "L" shaped cross section, and the abutment 29 has an inverted "T" shaped cross section. The "L" shaped design of the limiting plate 27 can effectively fit the corners of the tray, enhancing the stability of the clamping and making it less prone to displacement during use. The inverted "T" shaped design of the abutment 29 provides a larger contact area, ensuring that the force on the rear side of the tray is even, further improving the overall fixing effect.
[0025] The outer side of the limiting plate 27 is fixedly equipped with a reinforcing rib connected to the slider 26. The setting of the reinforcing rib effectively improves the connection strength between the limiting plate 27 and the slider 26, and avoids structural loosening or damage due to uneven force during long-term use. The design of the reinforcing rib can disperse external pressure and reduce the phenomenon of single-point stress concentration, thereby extending the service life of the equipment.
[0026] Both the drive shaft 21 and the threaded rod 23 are fixedly equipped with handwheels located on the rear side of the feeding table 1. The handwheels facilitate manual adjustment of the drive shaft 21 and the threaded rod 23 by the operator without the need for other tools, further improving the ease of operation of the equipment.
[0027] The top of the feeding platform 1 has a symmetrical guide groove 5. The bottom of the support frame 29 is fixedly connected to a guide block that is locked in the guide groove 5. The guide block can ensure that the support frame 29 remains stable during movement and avoids affecting the overall operating accuracy due to deviation or shaking. By cooperating with the symmetrical guide groove 5 on the top of the feeding platform 1, the positioning capability is further enhanced.
[0028] Please see Figure 1 and Figure 5 The support assembly 4 includes a fixed plate 41 fixedly installed at the bottom of the feeding platform 1. A support frame 42 corresponding to the opening 3 is fixedly installed on the top of the fixed plate 41. A rotating shaft 43 is rotatably installed on the inner side of the support frame 42. A roller 44 located in the opening 3 is fixedly installed on the outer side of the rotating shaft 43. The roller 44 installed in the support frame 42 extends out of the opening 3 and contacts the roller 44 through the bottom of the material tray. After the restriction on the material tray is released, the material tray can be pushed from the top of the feeding platform 1 into the furnace body. The rolling of the roller 44 reduces the friction and facilitates operation.
[0029] Multiple sets of openings 3 are symmetrically arranged along the direction of mounting groove 3 13. The equidistant arrangement of openings 3 ensures that the positioning requirements of different sized trays can be met during the feeding process. Through cooperation with the support component 4, stable support for the tray can be achieved, while ensuring its smooth movement.
[0030] Working principle: By operating the drive shaft 21, the active bevel gear 25 at its front end is driven to rotate. The active bevel gear 25 meshes with the driven bevel gear 24 outside the double-acting screw 22, thereby driving the driven bevel gear 24 to rotate. The rotation of the driven bevel gear 24 drives the double-acting screw 22 to rotate. The rotation of the double-acting screw 22 drives the sliders 26 on the left and right sides to move the limiting plates 27 in opposite directions. The distance between the limiting plates 27 on both sides is adjusted to match the width of the tray. Then, by pressing the front side of the tray against the limiting plates 27 on both sides, the tray is stacked on the feeding table 1. Then, by operating the threaded rod 23, the slider 28 is driven to slide the abutment 29 along the direction of the mounting groove 13. The abutment 29 abuts against the rear side of the tray, limiting the tray between the limiting plates 27 and the abutment 29, preventing the tray from shifting and falling.
[0031] After the feeding platform 1 is aligned with the sintering furnace, the drive shaft 21 is rotated in reverse, which drives the slider 26 to move the limiting plate 27 outward to release the restriction on the front side of the material tray. Since the material tray is located above the roller 44, the roller 44 supports the material tray, and the material tray can move back and forth in the rolling direction of the roller 44, which facilitates the pushing of the material tray. Then, by pushing the material tray into the furnace body, the feeding device drives the feeding platform 1 above it to exit the furnace body through the movement of the moving bracket. The above is the working process of the whole device. All contents not described in detail in this specification belong to the prior art known to those skilled in the art.
[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A feeding mechanism for a sintering furnace, comprising a feeding platform (1), characterized in that: The top of the feeding platform (1) is provided with a mounting groove 1 (11) at the front, and the rear of the feeding platform (1) is provided with a mounting groove 3 (13) and a mounting groove 2 (12) that are staggered vertically. The mounting groove 1 (11), the mounting groove 2 (12) and the mounting groove 3 (13) are movably installed with a limiting component (2). The top of the feeding platform (1) is provided with a passage (3), and the passage (3) is movably installed with a support component (4). The limiting component (2) includes a drive shaft (21), a bidirectional screw (22), and a threaded rod (23). The drive shaft (21) is rotatably installed inside the second mounting slot (12). The bidirectional screw (22) is rotatably installed inside the first mounting slot (11). The threaded rod (23) is rotatably installed inside the third mounting slot (13). A driven bevel gear (24) is fixedly installed on the outside of the bidirectional screw (22). A driving bevel gear (25) located in the first mounting slot (11) and meshing with the driven bevel gear (24) is fixedly installed at the front end of the drive shaft (21). A left-right symmetrical slider (26) is installed on the external thread of the bidirectional screw (22). A limiting plate (27) is fixedly installed on the top of the slider (26). The third mounting slot (13) passes through the top of the feeding table (1). A slider (28) is connected to the external thread of the threaded rod (23). A stop (29) is fixedly installed on the top of the slider (28).
2. The feeding mechanism for a sintering furnace according to claim 1, characterized in that: The limiting plate (27) has an "L" shaped cross section, and the abutment (29) has an inverted "T" shaped cross section.
3. The feeding mechanism of a sintering furnace according to claim 2, characterized in that: The outer side of the limiting plate (27) is fixedly equipped with a reinforcing rib connected to the slider (26).
4. The feeding mechanism of a sintering furnace according to claim 3, characterized in that: The rear ends of both the drive shaft (21) and the threaded rod (23) are fixedly equipped with handwheels located on the rear side of the feeding table (1).
5. The feeding mechanism of a sintering furnace according to claim 1, characterized in that: The top of the feeding platform (1) is provided with a guide groove (5) symmetrically arranged on the left and right sides, and the bottom of the support frame (29) is fixedly connected with a guide block that is locked in the guide groove (5).
6. The feeding mechanism of a sintering furnace according to claim 1, characterized in that: The support assembly (4) includes a fixed plate (41) fixedly installed at the bottom of the feeding table (1). A support frame (42) corresponding to the opening (3) is fixedly installed on the top of the fixed plate (41). A rotating shaft (43) is rotatably installed on the inner side of the support frame (42). A roller (44) located in the opening (3) is fixedly installed on the outer side of the rotating shaft (43).
7. The feeding mechanism for a sintering furnace according to claim 6, characterized in that: The opening (3) is symmetrically arranged in multiple sets along the direction of the mounting groove (13) at equal intervals.