Single-gate four-rod blanking structure of double-roller machine
By designing a single-gate, four-bar feeding structure for the roller mill, the size of the feed inlet is dynamically adjusted, solving the problem of mismatched feeding speed in the roller sand making machine and achieving precise feeding control and stable equipment operation.
Patent Information
- Application Number
- CN202423227297.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2034-12-26
AI Technical Summary
The feed inlet size of existing roller sand making machines is fixed, and the feed speed cannot be adjusted as needed, resulting in mismatched feed speeds and easy occurrences of idling, blockage, or jamming.
A single-gate four-bar feeding structure for a roller mill was designed. By cooperating with the left-moving feeding guide gate and the right-lower feeding guide gate, the left-moving feeding guide gate is driven to swing by the left telescopic rod, thereby dynamically adjusting the size of the feed inlet and controlling the feeding speed.
It enables adjustable feed inlet size, avoids idling and clogging, and improves the accuracy of feed control and the service life of the equipment.
Smart Images
Figure CN223915475U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of roller sand making machine technology, and in particular to a single gate four-bar feeding structure for a double roller sand making machine. Background Technology
[0002] Roller sand making machines typically include fixed rollers and movable rollers. Material is fed in from above the two rollers, continuously drawn into the space between them by the compression rollers, and discharged from the bottom of the machine at an ideal particle size. The relative movement of the two rollers crushes stones into sand. Chinese patent document CN202021220681X, authorized and announced on April 13, 2021, entitled "A Double Roller Sand Making Machine," includes a frame, a first pressing roller, a second pressing roller, and a drive motor. A pressing channel is formed between the first and second pressing rollers. The first pressing roller is rotatably connected to the frame, and the drive motor is connected to the frame to drive the first pressing roller to rotate. The frame has several support legs, each including a base plate, a lifting plate, a top plate, and a column arranged sequentially from bottom to top. The base plate has a positioning ring. A shortcoming of existing roller sand making machines is that the size of the feed inlet remains constant, thus preventing adjustment of the feed speed as needed. Utility Model Content
[0003] The present invention aims to provide a single-gate four-bar feeding structure for a double-roll mill with adjustable feeding speed, which solves the problem that the existing sand making machine cannot meet the need for feeding speed adjustment due to the fixed size of the feeding inlet.
[0004] The above technical problems are solved by the following technical solution: a single-gate four-bar feeding structure for a roller mill, including a frame and a feeding cylinder located above two rolling cylinders on the frame. The feeding cylinder is provided with a left movable feeding guide gate hinged to the frame and a right lower feeding guide gate fixed to the frame. The left movable feeding guide gate is hinged to one end of a left first connecting rod, and the other end of the left first connecting rod is hinged to one end of a left second connecting rod and one end of a left telescopic rod. The other ends of the left second connecting rod and the left telescopic rod are both hinged to the frame. The movable feeding guide gate, one end of the left first connecting rod, one end of the left second connecting rod, and one end of the frame are connected to the frame to form a four-bar structure. A dynamic feeding port is formed between the left movable feeding guide gate and the right lower feeding guide gate. In operation, the left telescopic rod drives the left moving feed guide gate to swing, thereby changing the opening and closing size of the dynamic feed inlet. This controls the feeding speed, preventing the roller mill from running dry without material and avoiding blockages in the feed cylinder. A lack of material can easily damage the feed cylinder upon re-entry, and this system also prevents jamming during feeding. Existing feed systems use a fixed size feed, which cannot solve these problems.
[0005] Preferably, the feed cylinder is equipped with a right-side loading / unloading guide gate and a left-side loading / unloading guide gate. The right-side loading / unloading guide gate is located above the left-side moving loading / unloading guide gate, with its lower end lower than the lower end of the right-side loading / unloading guide gate and extending to the left beyond the right-side loading / unloading guide gate. The left-side loading / unloading guide gate is located above the left-side moving loading / unloading guide gate, with its lower end lower than the lower end of the left-side moving loading / unloading guide gate and extending to the right beyond the left-side moving loading / unloading guide gate. A static feed inlet is formed between the right-side loading / unloading guide gate and the left-side loading / unloading guide gate. This design reduces the effort required to drive the left-side moving loading / unloading guide gate to swing.
[0006] Preferably, the frame is hinged to the left movable feeding guide gate via a first left front-to-back hinge axis. The left movable feeding guide gate is hinged to the left first connecting rod via a second left front-to-back hinge axis. The left first connecting rod is hinged to the left second connecting rod and the left telescopic rod via a third left front-to-back hinge axis. The left second connecting rod is hinged to the frame via a fourth left front-to-back hinge axis. The left telescopic rod is hinged to the frame via a fifth left front-to-back hinge axis. This design minimizes wobbling when the movable feeding guide gate swings, improving the accuracy of feeding control.
[0007] Preferably, the left telescopic rod is an electric cylinder, a hydraulic cylinder, or a pneumatic cylinder.
[0008] Preferably, the hinge point between the left first link and the left moving unloading guide gate is located above the hinge point between the left moving unloading guide gate and the frame. This allows for a longer lever arm design for the left telescopic rod, thereby reducing the force required to drive the left moving unloading guide gate.
[0009] Preferably, the frame has a left longitudinal beam, with a right connecting lug on the right side and a left connecting lug on the left side. The left movable discharge guide gate is hinged to the right connecting lug of the left longitudinal beam, and the left second connecting rod is hinged to the left connecting lug of the left longitudinal beam. The frame also has a right longitudinal beam, with a left connecting lug on the left side. The lower end of the right lower discharge guide gate is connected to the left connecting lug of the right longitudinal beam, and the upper end of the right lower discharge guide gate is supported on the upper surface of the right longitudinal beam by a support column. This design prevents damage to the connection points between the left movable discharge guide gate and the right lower discharge guide gate and the frame.
[0010] Preferably, the left second link is a curved rod structure that bends toward the left longitudinal beam. This avoids interference between the longitudinal beam and the left second link while maintaining a compact structure.
[0011] Preferably, the left longitudinal beam includes a left longitudinal flat tube, an upper left longitudinal strip fixed to the upper surface of the left longitudinal flat tube, and a lower left longitudinal strip fixed to the lower surface of the left longitudinal flat tube. The left connecting lug of the left longitudinal beam is simultaneously connected to the left longitudinal flat tube, the upper left longitudinal strip, and the lower left longitudinal strip. The right longitudinal beam includes a right longitudinal flat tube, an upper right longitudinal strip fixed to the upper surface of the right longitudinal flat tube, and a lower right longitudinal strip fixed to the lower surface of the right longitudinal flat tube. The left connecting lug of the right longitudinal beam is simultaneously connected to the right longitudinal flat tube, the upper right longitudinal strip, and the lower right longitudinal strip. The connecting lug can strengthen the longitudinal beam, thereby increasing its strength while reducing its weight.
[0012] The beneficial effect of this utility model is that the size of the feed inlet can be adjusted, thereby changing the feeding speed by changing the size of the feed inlet. Attached Figure Description
[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0014] Figure 2 This is a partial schematic diagram of the present invention.
[0015] In the diagram: 1. Frame; 2. Compactor cylinder; 3. Feed cylinder; 4. Left longitudinal beam; 5. Right connecting lug of left longitudinal beam; 6. Left longitudinal flat tube; 7. Upper left longitudinal strip; 8. Lower left longitudinal strip; 9. Right longitudinal beam; 10. Left connecting lug of right longitudinal beam; 11. Right longitudinal flat tube; 12. Upper right longitudinal strip; 13. Lower right longitudinal strip; 14. First left front-to-back hinge; 15. Left moving feed guide gate; 16. Second left front-to-back hinge; 17. First left connecting rod; 18. Third left front-to-back hinge; 19. Second left connecting rod; 20. Left telescopic rod; 21. Fourth left front-to-back hinge; 22. Fifth left front-to-back hinge; 23. Lower right feed guide gate; 24. Support column; 25. Dynamic feed inlet; 26. Right feed guide gate; 27. Left feed guide gate; 28. Static feed inlet; 29. Detailed Implementation
[0016] 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.
[0017] See Figure 1 and Figure 2A single-gate four-bar feeding structure for a roller mill includes a frame 1 and a feed cylinder 3 positioned above two rolling cylinders 2 on the frame. The frame has a left longitudinal beam 4, with a right connecting lug 5 on the right side and a left connecting lug 6 on the left side. The left longitudinal beam includes a left longitudinal flat tube 7, an upper left longitudinal strip 8 fixed to the upper surface of the left longitudinal flat tube, and a lower left longitudinal strip 9 fixed to the lower surface of the left longitudinal flat tube. The left connecting lug is simultaneously connected to the left longitudinal flat tube, the upper left longitudinal strip, and the lower left longitudinal strip. The frame has a right longitudinal beam 10, with a left connecting lug 11 on the left side of the right longitudinal beam. The right longitudinal beam includes a right longitudinal flat tube 12, an upper right longitudinal strip 13 fixed to the upper surface of the right longitudinal flat tube, and a lower right longitudinal strip 14 fixed to the lower surface of the right longitudinal flat tube. The left connecting lug is simultaneously connected to the right longitudinal flat tube, the upper right longitudinal strip, and the lower right longitudinal strip. The feed cylinder is equipped with a left movable feed guide gate 16, which is hinged to the right connecting lug of the left longitudinal beam via a left first forward-backward hinge shaft 15. The left movable feed guide gate is hinged to one end of the left first connecting rod 18 via a left second forward-backward hinge shaft 17. The other end of the left first connecting rod is hinged to one end of the left second connecting rod 20 and one end of the left telescopic rod 21 via a left third forward-backward hinge shaft 19. The other end of the left second connecting rod is hinged to the left connecting lug of the left longitudinal beam via a left fourth forward-backward hinge shaft 22. The other end of the left telescopic rod is hinged to the frame via a left fifth forward-backward hinge shaft 23. The movable feed guide gate, the left first connecting rod, one end of the left second connecting rod, and the frame form a four-bar linkage structure. The inner ring of the feed cylinder is equipped with a right lower feed guide gate 24, the lower end of which is fixed to the left connecting lug of the right longitudinal beam. The upper end of the right lower feed guide gate is supported on the upper surface of the right longitudinal beam by a support column 25. A dynamic feed inlet is formed between the left-moving feed guide gate and the right-lower feed guide gate. The left telescopic rod is an electric cylinder, hydraulic cylinder, or pneumatic cylinder. The hinge point between the left first connecting rod and the left-moving feed guide gate is located above the hinge point between the left-moving feed guide gate and the frame. The upper end of the right-lower feed guide gate is supported on the upper surface of the right longitudinal beam by a support column. The left second connecting rod is a curved rod structure that bends towards the left longitudinal beam. A dynamic feed inlet 26 is formed between the left-moving feed guide gate and the right-lower feed guide gate. The feed cylinder is equipped with a right-side loading / unloading guide gate 27 and a left-side loading / unloading guide gate 28. The right-side loading / unloading guide gate is located above the left-side moving loading guide gate, with its lower end lower than the lower end of the left-side loading guide gate and extending to the left beyond the left-side loading / unloading guide gate. The left-side loading guide gate is located above the left-side moving loading guide gate, with its lower end lower than the lower end of the left-side loading guide gate and extending to the right beyond the left-side loading guide gate. A static feed inlet 29 is formed between the right-side loading / unloading guide gate and the left-side loading guide gate.
[0018] In use, the size of the feed inlet is dynamically changed by driving the left moving guide gate to swing via the left telescopic rod, thereby adjusting the feeding speed.
[0019] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0020] 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 single gate four-bar blanking structure of a roller mill, comprising a frame and a feeding cylinder arranged above two rolling cylinders of the frame, characterized in that, The left movable lower discharging guide flap is hinged to the left first connecting rod, and the other end of the left first connecting rod is hinged to one end of the left second connecting rod and one end of the left telescopic rod.
2. A single gate four bar blanking mechanism of a pair of roll mill as claimed in claim 1, wherein, The right upper discharging guide flap is located above the right lower discharging guide flap, the lower end of the right lower discharging guide flap is lower than the lower end of the right upper discharging guide flap, and the lower end of the right lower discharging guide flap extends to the left beyond the right upper discharging guide flap.
3. The single gate four-bar blanking structure of a pair of rollers according to claim 1 or 2, characterized in that, The left first front and back hinge shaft is used to hinge the left movable discharging guide flap to the frame, the left second front and back hinge shaft is used to hinge the left first connecting rod to the left movable discharging guide flap, the left third front and back hinge shaft is used to hinge the left first connecting rod to the left second connecting rod and the left telescopic rod, the left fourth front and back hinge shaft is used to hinge the left second connecting rod to the frame, and the left fifth front and back hinge shaft is used to hinge the left telescopic rod to the frame.
4. The single gate four-bar blanking structure of a pair of rollers according to claim 1 or 2, characterized in that, The left telescopic rod is an electric cylinder, an oil cylinder or a gas cylinder.
5. The single gate four-bar blanking structure of a pair of rollers according to claim 1 or 2, characterized in that, The hinge point of the left first connecting rod and the left movable discharging guide flap is located above the hinge point of the left movable discharging guide flap and the frame.
6. The single gate four-bar blanking structure of a pair of rollers according to claim 1 or 2, characterized in that, The frame is provided with a left longitudinal beam, the right side of the left longitudinal beam is provided with a left longitudinal beam part right connecting lug, and the left side of the left longitudinal beam is provided with a left longitudinal beam part left connecting lug, the left movable discharging guide flap is hinged to the left longitudinal beam part right connecting lug, and the left second connecting rod is hinged to the left longitudinal beam part left connecting lug.
7. A single gate four bar blanking mechanism for a roll mill as claimed in claim 6, wherein, The left second connecting rod is a curved rod structure curved towards the left longitudinal beam.
8. A single gate four bar blanking mechanism of a pair of roll mill as claimed in claim 6 wherein, The left longitudinal beam comprises a left longitudinal flat tube, a left upper longitudinal plate strip fixed to the upper surface of the left longitudinal flat tube and a left lower longitudinal plate strip fixed to the lower surface of the left longitudinal flat tube, and the left longitudinal beam part left connecting lug is connected to the left longitudinal flat tube, the left upper longitudinal plate strip and the left lower longitudinal plate strip at the same time. The right longitudinal beam comprises a right longitudinal flat tube, a right upper longitudinal plate strip fixed to the upper surface of the right longitudinal flat tube and a right lower longitudinal plate strip fixed to the lower surface of the right longitudinal flat tube, and the right longitudinal beam part left connecting lug is connected to the right longitudinal flat tube, the right upper longitudinal plate strip and the right lower longitudinal plate strip at the same time.