Automatic lifting device for open mill hopper
By designing an automatic lifting device on the mixer and using an automated lifting system driven by wire ropes and motors, the problem of relying on manual materials in traditional mixers is solved, and production efficiency and equipment applicability are improved.
Patent Information
- Application Number
- CN202521132519.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-05
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2035-06-05
AI Technical Summary
In the production of traditional starting mixers, manual operation is required for material handling, resulting in high labor costs and unstable production quality and efficiency.
An automatic lifting device for the hopper of the hopper was designed, using an automated lifting system driven by wire rope and motor, combined with the adjustment seat and limit plate structure, the precise position and angle adjustment of the hopper was realized to meet different working conditions.
It realizes automatic lifting and lowering of the hopper, reduces manual intervention, improves production efficiency, reduces labor costs, and improves the stability and applicability of equipment operation.
Smart Images
Figure CN223161186U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of open mills, and particularly relates to an automatic lifting device for the hopper of an open mill. Background Technique
[0002] An open mill is short for an open plasticizing mill. In plastic products factories, people are used to calling it a two-roll mill. An open mill is a relatively early used plastic mixing equipment in plastic products factories. In a calender production line, the open mill is located in front of the calender and behind the mixer. Its function is to mix and plasticize the uniformly mixed raw materials to provide a relatively uniformly mixed molten material for the calender to calender and form plastic products. When producing cable materials, the open mill can directly plasticize the powdery materials mixed according to the formula into molten materials, and then compress them into sheet-like strips, and cut them into granules by a granulator. In a floor leather production line, it can directly provide a uniformly mixed and plasticized bottom coating for the cloth-based leather. It can also re-plasticize and recycle the recycled waste plastic films (sheets) on the open mill.
[0003] At present, in the production process of traditional open mills, the materials need to be mixed multiple times, and each time of mixing requires workers to manually handle and transport the materials in a high-temperature environment. The labor cost is high, and the number of mixings has a great impact on the quality of the products, resulting in unstable production quality and efficiency. Content of the Utility Model
[0004] The utility model discloses an automatic lifting device for the hopper of an open mill, which mainly solves the problems of manual operation for material handling in the production of traditional open mills, high labor cost, and unstable production quality and efficiency.
[0005] To achieve the above object, the utility model provides an automatic lifting device for the hopper of an open mill, including a base, wherein a feeding rack is arranged inside the base, and a hopper is arranged inside the feeding rack in a liftable manner.
[0006] Preferably, fixed seats are provided at both ends of the hopper. The fixed seats are also provided with mounting holes. The fixed seats are detachably mounted with adjusting seats through the mounting holes. The adjusting seats are provided with mounting slot holes matching the mounting holes. Mounting bolts are threadedly mounted in the mounting holes and the mounting slot holes. One end of the adjusting seat is provided with a first adjusting bolt seat. The side of the fixed seat away from the hopper is provided with a second adjusting bolt seat. The first adjusting bolt seat and the second adjusting bolt seat are both provided with adjusting screw holes. Adjusting bolts are threadedly mounted in the adjusting screw holes. The adjusting bolts are adaptively matched with the adjusting screw holes. At least one adjusting nut is sleeved outside the adjusting bolts. The side of the adjusting seat away from the hopper is provided with a fixed wheel. A fixing groove is provided on the side surface of the fixed wheel. A steel wire rope is sleeved in the fixing groove. Through the cooperation of the adjusting seat, the mounting slot hole and the adjusting bolt, the flexible adjustment of the position of the hopper is realized. The adjusting bolt cooperates with double adjusting nuts (the first and second adjusting nuts) to finely adjust the relative position between the fixed wheel and the hopper, meeting the installation accuracy requirements under different working conditions. This modular design facilitates the rapid adjustment of equipment parameters according to material characteristics or process requirements, such as adapting to the conveying requirements of materials with different viscosities or particle sizes.
[0007] Preferably, two wire rope guide wheels are symmetrically arranged on the outer side of the feeding frame. The other end of the wire rope bypasses the wire rope guide wheels and winds around the surface of the winding and unwinding disc. A motor for driving the rotation of the winding and unwinding disc is also provided at the top of the feeding frame. The wire rope has high strength and load-bearing capacity. After the surface of the wire rope is treated, it can also reduce frictional losses in cooperation with the wire rope guide wheels. The wire rope also has a certain rigidity, so as to ensure a clear path for easy maintenance. A rotating rod is fixedly arranged between the two winding and unwinding discs. One end of the rotating rod is connected to the output end of the motor through a coupling. The two winding and unwinding discs are directly connected to the motor coupling through the rotating rod to achieve synchronous drive, avoiding the lifting skew caused by uneven unilateral force.
[0008] Preferably, a first limiting plate, a second limiting plate and a third limiting plate are arranged inside the feeding frame. The first limiting plate and the second limiting plate form a first guiding groove. The second limiting plate and the third limiting plate form a second guiding groove. Two inner track wheels and two outer track wheels are rotatably arranged on both sides of the hopper. The outer track wheels are slidably mounted in the first guiding groove. The inner track wheels are slidably mounted in the second guiding groove. The diameter of the outer track wheels is smaller than the width of the first guiding groove. The diameter of the inner track wheels is smaller than the width of the second guiding groove. By forming double guiding grooves (the first guiding groove and the second guiding groove) through the first, second and third limiting plates arranged inside the feeding frame, and cooperating with the sliding structures of the inner and outer track wheels on both sides of the hopper, the stability of the lifting process is significantly improved. The matching design of the diameter of the track wheels and the width of the guiding grooves (the diameter of the outer track wheels is smaller than the width of the first guiding groove) can reduce the risk of running skew and avoid jamming problems.
[0009] Preferably, protective doors are provided on both sides of the base, and a protective plate is provided on the top of the base. The protective doors on both sides of the base and the top protective plate form a closed structure to prevent material splashing or external interference, meeting the requirements of industrial equipment safety specifications.
[0010] Preferably, the adjusting nut includes a first adjusting nut and a second adjusting nut. The adjusting bolt is sleeved with the first adjusting nut between the first adjusting bolt seat and the second adjusting bolt seat, and the second adjusting nut is sleeved on the adjusting bolt near the second adjusting bolt seat and far from the first adjusting bolt seat. The threaded installation structure of the adjusting seat and the rotational design of the track wheel facilitate disassembly and replacement. For example, when the track wheel is worn, only the bolt needs to be disassembled for maintenance, and there is no need to replace the entire frame.
[0011] The technical solution provided by the present utility model at least has the following technical effects:
[0012] By providing an adjusting seat on the side of the hopper and through the cooperative design of the adjusting seat, adjusting bolt and double adjusting nuts, the present utility model can precisely adjust the position of the hopper and the installation angle of the fixed wheel, adapt to different working conditions, and improve the versatility and adaptability of the device.
[0013] By using a steel wire rope as the lifting stop, the present utility model has the effects of convenient maintenance and reduced faults, effectively improving production efficiency, reducing after-sales service costs, and improving the operating efficiency of the equipment.
[0014] By adopting an automatic winding and unwinding mechanism of a motor-driven winding and unwinding disc and a steel wire rope, the present utility model realizes the automatic lifting of the hopper, reduces manual intervention, and improves operation efficiency; the design of the rotating rod linking the double winding and unwinding discs ensures synchronous operation on both sides and avoids the hopper from tilting. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.
[0016] Figure 1 is a schematic structural diagram of an embodiment of the present utility model;
[0017] Figure 2 A partial enlarged schematic view of the side of the hopper in an embodiment of the present utility model;
[0018] Figure 3 is Figure 2 an enlarged schematic view of the structure at A of
[0019] Figure 4 Schematic diagram of the positional relationship between the guiding groove and the inner track wheel and the outer track wheel in the embodiment of the present utility model;
[0020] Figure 5 Schematic diagram of the structures of the first limiting plate, the second limiting plate and the third limiting plate in the embodiment of the present utility model;
[0021] Figure 6 Schematic diagram of the positional relationship between the present utility model in the working state and the mill;
[0022] Main reference numerals description: 10, base; 11, protective plate; 12, protective door; 20, feeding rack; 21, winding and unwinding disc; 22, motor; 23, wire guiding wheel; 24, outer track wheel; 25, inner track wheel; 26, first guiding groove; 27, second guiding groove; 260, first limiting plate; 261, second limiting plate; 262, third limiting plate; 30, hopper; 31, fixed seat; 32, steel wire rope; 310, adjusting seat; 311, mounting slot hole; 312, mounting bolt; 313, fixed wheel; 314, first adjusting bolt seat; 315, adjusting bolt; 316, second adjusting bolt seat; 317, adjusting nut; A, mill; Detailed implementation manners
[0023] The following details the embodiments of the present utility model. The examples of the embodiments are shown in the drawings, in which the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are intended to explain the embodiments of the present utility model, and should not be construed as a limitation to the present utility model.
[0024] In the description of the embodiments of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.
[0025] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the embodiments of the present utility model, "a plurality" means two or more unless otherwise specifically defined.
[0026] Please refer to Figure 1 , Figure 1 which is the side view of the embodiment of the present utility model. The present embodiment provides an automatic lifting device for a hopper of a kneader, including a base 10. A feeding frame 20 is arranged inside the base 10, and a hopper 30 is arranged inside the feeding frame 20 in a liftable manner.
[0027] Please refer to Figure 2 and Figure 3 , Figure 2 which is a partial enlarged schematic view of the hopper fixing seat of the embodiment of the present utility model. Figure 3 is Figure 2 a partial enlarged schematic view of point A of. Both ends of the hopper 30 are provided with fixing seats. The fixing seats are also provided with installation holes. The adjusting seat 310 is provided with installation slot holes 311 matching the installation holes. The installation holes and the installation slot holes 311 are internally threaded with installation bolts 312. The adjusting seat 310 and the fixing seat 31 are detachably connected through the installation bolts 312.
[0028] One end of the adjusting seat 310 is provided with a first adjusting bolt seat 314. A second adjusting bolt seat 316 is arranged on the side of the fixing seat away from the hopper 30. Both the first adjusting bolt seat 314 and the second adjusting bolt seat 316 are provided with adjusting screw holes. The adjusting screw holes are internally threaded with adjusting bolts 315. The adjusting bolts 315 are adaptively matched with the adjusting screw holes.
[0029] In this embodiment, two adjusting nuts 317 are sleeved outside the adjusting bolt 315. A fixed wheel 313 is arranged on the side of the adjusting seat 310 away from the hopper 30. A fixing groove is arranged on the side surface of the fixed wheel 313. A steel wire rope 32 is sleeved in the fixing groove. The steel wire rope has high strength and load-bearing capacity. And after the surface of the steel wire rope is treated, it can also reduce frictional loss in cooperation with the steel wire guiding wheel. The steel wire rope also has a certain rigidity, so as to ensure a clear path for easy maintenance.
[0030] Two steel wire guiding wheels 23 are symmetrically arranged outside the feeding frame 20. The other end of the steel wire rope 32 bypasses the steel wire guiding wheels 23 and is wound on the surface of a winding and unwinding disc 21. A motor 22 for driving the winding and unwinding disc 21 to rotate is also arranged at the top of the feeding frame 20.
[0031] Please refer to again Figure 4 and Figure 5 , Figure 4 which is a structural schematic view of the first guiding groove and the second wire guiding groove of the embodiment of the present utility model. Figure 5Schematic diagram of the structures of the first, second, and third limit plates in an embodiment of the present utility model. Inside the feeding machine frame 20, a first limit plate, a second limit plate, and a third limit plate are provided. The first limit plate and the second limit plate form a first guiding groove 26, and the second limit plate and the third limit plate form a second guiding groove 27.
[0032] In this embodiment, an inner track wheel 25 and an outer track wheel 24 are rotatably provided on both sides of the hopper 30. The outer track wheel 24 is slidably installed in the first guiding groove 26, and the inner track wheel 25 is slidably installed in the second guiding groove 27. The diameter of the outer track wheel 24 is smaller than the width of the first guiding groove 26, and the diameter of the inner track wheel 25 is smaller than the width of the second guiding groove 27.
[0033] On both sides of the base 10, protective doors 12 are provided, and on the top of the base 10, a protective plate 11 is provided. In this embodiment, a plurality of observation holes are provided on both the protective doors 12 and the protective plate 11, which can be used to observe the movement of the hopper 30 during the operation of the device.
[0034] The adjusting nut 317 includes a first adjusting nut and a second adjusting nut. A first adjusting nut is sleeved on the adjusting bolt 315 between the first adjusting bolt seat 314 and the second adjusting bolt seat 316, and a second adjusting nut is sleeved on the adjusting bolt 315 near the second adjusting bolt seat 316 and far from the first adjusting bolt seat 314.
[0035] A rotating rod is fixedly provided between the two winding and unwinding discs 21. One end of the rotating rod is connected to the output end of the motor 22 through a coupling. As the motor 22 rotates, the winding and unwinding discs 21 are driven to rotate to achieve the effect of winding and unwinding the steel wire rope 32.
[0036] In the present utility model, the motor 22 is electrically connected to a control system for controlling its start and stop. The working principle of the control is prior art and will not be elaborated here.
[0037] Please refer to Figure 6 , Figure 6 which is a schematic diagram of the positional relationship between the working state of an embodiment of the present utility model and an internal mixer;
[0038] The hopper reciprocates up and down between a starting point at the bottom of the feeding machine frame (20) and an end point at the top of the feeding machine frame (20).
[0039] During operation of this embodiment, first, the hopper 30 is lowered to the lowest position by controlling the motor 22 to complete the material receiving step. Then, the control system controls the motor 22 to wind up the steel wire rope 32. At the same time, the inner track wheels 25 and the outer track wheels 24 on both sides of the hopper 30 move upward along the second guide groove 27 and the first guide groove 26 respectively until they reach the diverging part of the first guide groove 26 and the second guide groove 27. After that, the outer track wheels 24 continue to move upward along the first guide groove 26 and gradually separate from the inner track wheels 25 in the trajectory, so that the upper opening of the hopper 30 gradually tilts downward until the rear of the upper opening of the hopper 30 tilts forward. At this time, the rubber compound in the hopper 30 is completely poured out of the hopper. The controller commands the hopper 30 to return to the bottom end of the frame, and thus a cycle of rubber compound transportation operation is completed.
[0040] The utility model has at least the following advantages:
[0041] Height adjustability and flexibility:
[0042] Through the cooperative design of the adjusting seat 310, the adjusting bolt 315 and the double adjusting nuts 317 (the first and second adjusting nuts), the horizontal position of the hopper 30 and the installation angle of the fixed wheel 313 can be precisely adjusted to meet the requirements of different working conditions, improving the versatility and adaptability of the device.
[0043] Stable and reliable operation:
[0044] Inner and outer track wheels 24 are arranged on both sides of the hopper 30 and are respectively embedded in the first guide groove 26 (formed by the first and second limit plates) and the second guide groove 27 (formed by the second and third limit plates). The double guide structure ensures that the hopper 30 does not deviate during the lifting and lowering process, and the diameter of the track wheel is smaller than the width of the guide groove to avoid jamming, enhancing the smoothness of movement.
[0045] Automation and high efficiency:
[0046] An automatic winding and unwinding mechanism of the winding and unwinding disc 21 and the steel wire rope 32 driven by the motor 22 is adopted to realize the automatic lifting and lowering of the hopper 30, reducing manual intervention and improving the operation efficiency; the design of the rotating rod linking the double winding and unwinding discs 21 ensures synchronous operation on both sides and avoids tilting of the hopper 30.
[0047] Safety protection and visual monitoring:
[0048] The protective doors 12 on both sides of the base 10 and the top protective plate 11 effectively isolate the mechanical components, preventing foreign objects from entering or personnel from accidentally touching; the observation holes on the protective doors 12 and the protective plate 11 support real-time monitoring of the movement state of the hopper 30, facilitating timely detection of abnormalities.
[0049] Structurally stable and convenient for maintenance:
[0050] The adjusting seat 310 is detachably connected to the hopper 30 fixing seat through the mounting bolts 312, facilitating the quick replacement or repair of components; the steel wire rope 32 is guided through the fixing groove and the guide wheel, reducing friction loss and extending the service life; the overall modular design reduces the maintenance complexity.
[0051] Load balancing and strength optimization:
[0052] The inner and outer track wheels 24 are respectively placed in different guide grooves, dispersing the load of the hopper 30, avoiding single-point stress concentration, and enhancing the structural strength of the frame and the long-term operation stability.
[0053] In this embodiment, two wire guide wheels 23 are also provided on the outer side of the feeding frame 20, thus avoiding the stress concentration of the steel wire rope 32, increasing the maximum load-bearing weight of the hopper 30 and extending the service life of the product at the same time.
[0054] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.
Claims
1. An automatic lifting device for the hopper of an open mill, characterized in that: It includes a base (10), a feeding rack (20) is arranged inside the base (10), and a hopper (30) is arranged inside the feeding rack (20) in a liftable manner; Both ends of the hopper (30) are provided with fixed wheels (313), a fixing groove is formed on the side surface of the fixed wheel (313), and a steel wire rope (32) is sleeved in the fixing groove, where: Two steel wire guiding wheels (23) are symmetrically arranged on the outer side of the feeding rack (20), the other end of the steel wire rope (32) bypasses the steel wire guiding wheel (23) and is wound on the surface of a winding and unwinding disc (21), and a motor (22) for driving the winding and unwinding disc (21) to rotate is further arranged at the top end of the feeding rack (20); Wherein, a first guiding groove (26) and a second guiding groove (27) are arranged inside the feeding rack (20); During feeding, the hopper (30) is driven by the motor (22) to feed along the paths of the first guiding groove (26) and the second guiding groove (27); after the feeding is completed, the hopper (30) is driven by the motor (22) to return to the bottom of the feeding rack (20) along the paths of the first guiding groove (26) and the second guiding groove (27); It reciprocates up and down according to the starting point located at the bottom of the feeding rack (20) and the end point located at the top of the feeding rack (20).
2. The automatic hoist device for the open mill hopper according to claim 1, characterized in that: Both ends of the hopper (30) are provided with fixing seats, the fixing seats are further provided with mounting holes, an adjusting seat (310) can be detachably mounted on the fixing seats through the mounting holes, the adjusting seat (310) is provided with mounting slot holes (311) matching the mounting holes, mounting bolts (312) are threadedly mounted in the mounting holes and the mounting slot holes (311), one end of the adjusting seat (310) is provided with a first adjusting bolt seat (314), a second adjusting bolt seat (316) is arranged on the surface of the fixing seat away from the hopper (30), the first adjusting bolt seat (314) and the second adjusting bolt seat (316) are both provided with adjusting screw holes, adjusting bolts are threadedly mounted in the adjusting screw holes, the adjusting bolts are adaptively matched with the adjusting screw holes, at least one adjusting nut (317) is further sleeved on the outer side of the adjusting bolts, and fixing wheels (313) are arranged on the surfaces of the two adjusting seats (310) away from the hopper (30).
3. The automatic lifting device for the hopper of an open mill according to claim 1, characterized in that: Wherein, A first limiting plate, a second limiting plate and a third limiting plate are arranged inside the feeding rack (20), the first limiting plate and the second limiting plate form the first guiding groove (26), and the second limiting plate and the third limiting plate form the second guiding groove (27).
4. The automatic hoist device for the kneader hopper according to claim 2, wherein: Two inner track wheels (25) and two outer track wheels (24) are rotatably arranged on both sides of the hopper (30), the outer track wheels (24) are slidably mounted in the first guiding groove (26), and the inner track wheels (25) are slidably mounted in the second guiding groove (27).
5. An automatic lifting device for the hopper of an open mill according to claim 4, characterized in that: The diameter of the outer track wheel (24) is smaller than the width of the first guiding groove (26), and the diameter of the inner track wheel (25) is smaller than the width of the second guiding groove (27).
6. The automatic lifting device for the hopper of an open mill according to claim 1, characterized in that: On both sides of the base (10), protective doors (12) are provided, and on the top of the base (10), a protective plate (11) is provided.
7. An automatic lifting device for the hopper of an open mill according to claim 2, characterized in that: The adjusting nut (317) includes a first adjusting nut and a second adjusting nut. The adjusting bolt is sleeved with the first adjusting nut between the first adjusting bolt seat (314) and the second adjusting bolt seat (316), and the adjusting bolt is sleeved with the second adjusting nut near the second adjusting bolt seat (316) and away from the first adjusting bolt seat (314).
8. The automatic hoist device for the open mill hopper according to claim 1, characterized in that: A rotating rod is fixedly arranged between the two winding and unwinding discs (21), and one end of the rotating rod is connected to the output end of the motor (22) through a coupling.