Roller press feeding device
By using a feeding device with a feed hopper and an adjustment hopper in the roller press, combined with a stirring component and a symmetrical feeding adjustment component, the problem of uneven roller surface caused by material deviation is solved, and uniform feeding and efficient grinding of the roller press are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG JIN YUAN CEMENT
- Filing Date
- 2025-08-28
- Publication Date
- 2026-07-31
AI Technical Summary
A single-sided feeding adjustment plate causes the material to flow to one side in the channel, resulting in uneven wear on the roller surfaces on both sides of the roller press, which affects grinding efficiency and equipment life.
The feeding device includes a feed hopper, a regulating hopper, a mixing component, and symmetrically distributed discharge regulating components. The mixing component prevents material from clumping, and the discharge regulating components synchronously control the material flow from both sides to ensure uniform feeding.
It improves the problem of uneven material feeding, reduces the difference in roller surface wear, improves grinding efficiency and equipment service life, and avoids unbalanced roller gap pressure distribution.
Smart Images
Figure CN224576272U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of auxiliary equipment technology for roller presses, and more specifically, to a feeding device for a roller press. Background Technology
[0002] Currently, the feeding process of roller presses mostly relies on feeding adjustment plates for material flow control and material distribution. Among them, single-sided feeding adjustment plates are a relatively common structural form.
[0003] The working principle of a single-sided feeding regulating plate is as follows: it typically has an adjustable baffle structure on only one side of the feed end of the roller press. A drive device (such as a cylinder, hydraulic cylinder, or screw mechanism) moves the baffle horizontally or inclined, changing the channel width between the baffle and the fixed wall on the other side, thereby controlling the material flow rate. During the feeding process, after the material enters through the feed inlet of the single-sided feeding regulating plate, it slides down along the channel formed by the baffle and the fixed wall under gravity, eventually falling into the roller gap area of the roller press.
[0004] However, this single-sided feeding adjustment plate design has significant drawbacks. Because material flow is controlled solely by adjusting a single-sided baffle, the material is easily affected by its own gravity distribution within the channel, leading to a tendency for it to flow to one side during its descent. This results in frequent uneven feeding on one side, causing inconsistent material loads on the two roller surfaces of the roller press. Consequently, this leads to significant differences in the wear levels of the two roller surfaces, severely shortening the service life of the roller press. Furthermore, uneven feeding causes an imbalance in the pressure distribution between the roller gaps. In areas of insufficient pressure, the material cannot be adequately compressed, affecting grinding efficiency. Summary of the Invention
[0005] The purpose of this application is to provide a roller press feeding device that can solve the technical problems mentioned in the background art.
[0006] This application provides a feeding device for a roller press, including a feeding bin and an adjusting bin. The bottom of the feeding bin and the top of the adjusting bin are connected by a vertical material pipe. A stirring assembly is rotatably arranged inside the feeding bin. A feeding component is provided inside the vertical material pipe. The feeding component is connected to the stirring assembly and rotates synchronously with the stirring assembly. A drive motor for driving the stirring assembly to rotate is fixedly installed at the top of the feeding bin. Two symmetrically distributed feeding adjusting assemblies are provided inside the adjusting bin.
[0007] Furthermore, the feeding adjustment assembly includes a feeding adjustment plate, a drive cylinder, and a transmission rod. The feeding adjustment plate is inclinedly disposed within the adjustment chamber. Connecting shafts are fixed on both sides of the upper end of the feeding adjustment plate, and the two connecting shafts are rotatably connected to the two side walls of the adjustment chamber in a one-to-one correspondence. The drive cylinder is fixed to the outer side wall of the adjustment chamber, and the telescopic rod of the drive cylinder extends horizontally into the adjustment chamber. The transmission rod is fixed to the end of the telescopic rod of the drive cylinder. A pair of guide grooves adapted to the transmission rod are symmetrically provided on the feeding adjustment plate, and the end of the transmission rod is embedded in the guide groove and slidably connected to the guide groove.
[0008] Furthermore, two rollers are rotatably mounted on the transmission rod, and the two rollers are symmetrically arranged along the axial direction of the transmission rod. The outer circumferential surface of the rollers makes rolling contact with the bottom surface of the feeding adjustment plate.
[0009] Furthermore, the stirring assembly includes a rotating shaft and a plurality of stirring rods. The rotating shaft is rotatably disposed inside the feeding hopper, and the upper end of the rotating shaft extends outside the feeding hopper and is connected to the output shaft of the drive motor. The plurality of stirring rods are evenly spaced and fixed on the rotating shaft.
[0010] Furthermore, the lower end of the rotating shaft extends into the vertical material tube, and the feeding component is a spiral blade. The feeding component surrounds the rotating shaft and is fixedly disposed at the lower end of the rotating shaft located inside the vertical material tube.
[0011] Furthermore, the inner wall of the guide groove is provided with a self-lubricating coating, which is a polytetrafluoroethylene coating.
[0012] Furthermore, two stroke sensors are fixedly installed on the inner wall of the adjustment chamber. The two stroke sensors are arranged one-to-one with the two feeding adjustment components. The detection end of the stroke sensor is arranged along the extension and retraction direction of the extension rod of the corresponding drive cylinder to detect the extension and retraction amount of the extension rod of the drive cylinder. The stroke sensor is electrically connected to a controller, which is electrically connected to the drive motor and the drive cylinder of each feeding adjustment component.
[0013] The beneficial effects of this utility model are:
[0014] This invention, through the cooperation of the stirring component and the feeding component, can prevent materials from clumping and clogging in the feeding hopper and vertical feed pipe, ensuring smooth feeding. The two symmetrical feeding adjustment components in the adjustment hopper can synchronously adjust the material from both sides, effectively improving the material bias problem caused by unilateral adjustment, reducing uneven feeding, making the roller surfaces on both sides of the roller press more uniformly stressed, reducing the difference in roller surface wear, and extending the service life of the equipment. At the same time, uniform feeding can avoid the imbalance of pressure distribution between the roller gaps, improving the material extrusion effect and grinding efficiency. Attached Figure Description
[0015] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 These are schematic diagrams of structures in some embodiments of this application;
[0017] Figure 2 These are cross-sectional views of some embodiments of this application;
[0018] Figure 3 This is a schematic diagram of the structure of the feeding adjustment component in some embodiments of this application;
[0019] The reference numerals in the attached figures are as follows:
[0020] 1. Feed hopper; 2. Adjustment hopper; 3. Vertical feed pipe; 4. Mixing assembly; 41. Rotating shaft; 42. Mixing rod; 5. Feeding component; 6. Drive motor; 7. Feeding adjustment assembly; 71. Feeding adjustment plate; 711. Connecting shaft; 712. Guide groove; 72. Drive cylinder; 73. Transmission rod; 74. Roller; 8. Stroke sensor; 9. Stop block. Detailed Implementation
[0021] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0022] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.
[0023] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0024] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0025] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0026] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Specific implementation examples:
[0028] like Figure 1 and Figure 2As shown, this application provides a feeding device for a roller press, including a feeding bin 1 and an adjusting bin 2. The bottom of the feeding bin 1 and the top of the adjusting bin 2 are connected by a vertical material pipe 3. A stirring assembly 4 is rotatably installed inside the feeding bin 1, and a feeding component 5 is provided inside the vertical material pipe 3. The feeding component 5 is connected to the stirring assembly 4 and rotates synchronously with the stirring assembly 4. A drive motor 6 for driving the stirring assembly 4 to rotate is fixedly installed at the top of the feeding bin 1. Two symmetrically distributed feeding adjusting components 7 are provided inside the adjusting bin 2. Specifically, the top of the feeding bin 1 has a feeding port, and the bottom of the adjusting bin 2 has an opening. In use, the adjusting bin 2 is fixedly installed at the top feeding port of the roller press and located directly above the two rollers of the roller press. The material enters from the feeding port at the top of the feeding bin 1, and the drive motor 6 drives the stirring assembly 4 inside the feeding bin 1 to rotate, which in turn moves the material with the stirring assembly 4. The feeding component 5 connected to 4 rotates synchronously, which plays a role in stirring and conveying the material, allowing the material to enter the regulating chamber 2 through the vertical material pipe 3. Two symmetrically distributed feeding regulating components 7 in the regulating chamber 2 synchronously regulate the material from both sides. Finally, the material falls into the roller press from the opening at the bottom of the regulating chamber 2, completing the feeding process. The cooperation between the stirring component 4 and the feeding component 5 can prevent the material from clumping and blocking in the feeding chamber 1 and the vertical material pipe 3, ensuring smooth feeding. The two symmetrical feeding regulating components 7 in the regulating chamber 2 can synchronously regulate the material from both sides, effectively improving the material bias problem caused by unilateral adjustment, reducing uneven feeding, making the roller surfaces on both sides of the roller press more uniformly stressed, reducing the difference in roller surface wear, and extending the service life of the equipment. At the same time, uniform feeding can avoid the imbalance of pressure distribution between the roller gaps, improve the material extrusion effect and grinding efficiency.
[0029] like Figure 2 and Figure 3As shown, the feeding adjustment assembly 7 includes a feeding adjustment plate 71, a drive cylinder 72, and a transmission rod 73. The feeding adjustment plate 71 is inclinedly disposed within the adjustment chamber 2. Connecting shafts 711 are fixed on both sides of the upper end of the feeding adjustment plate 71, and the two connecting shafts 711 are rotatably connected to the two side walls of the adjustment chamber 2 in a one-to-one correspondence. The drive cylinder 72 is fixed on the outer side wall of the adjustment chamber 2, and the telescopic rod of the drive cylinder 72 extends horizontally into the adjustment chamber 2. The transmission rod 73 is fixed at the end of the telescopic rod of the drive cylinder 72. A pair of guide grooves 712 adapted to the transmission rod 73 are symmetrically provided on the feeding adjustment plate 71, and the end of the transmission rod 73 is embedded in the guide groove 71. 2. The guide groove 712 is slidably connected to the inner part of the guide groove 712; the telescopic rod of the drive cylinder 72 extends and retracts in the horizontal direction, driving the transmission rod 73 fixed at its end to move synchronously. The end of the transmission rod 73 slides in the guide groove 712. Since the feeding adjustment plate 71 is rotatably connected to the two side walls of the adjustment chamber 2 through the connecting shaft 711, the sliding of the transmission rod 73 will push the feeding adjustment plate 71 to rotate around the connecting shaft 711, thereby changing the tilt angle of the feeding adjustment plate 71. The two feeding adjustment components 7 operate synchronously, which can realize the adjustment of the size of the material falling channel. The symmetrical structure and synchronous operation can ensure the consistency of the adjustment on both sides and effectively avoid material deviation.
[0030] like Figure 3 As shown, two rollers 74 are rotatably mounted on the transmission rod 73. The two rollers 74 are symmetrically arranged along the axis of the transmission rod 73, and the outer circumferential surface of the rollers 74 rolls in contact with the bottom surface of the feeding adjustment plate 71. When the transmission rod 73 moves, the two rollers 74 rotatably mounted at both ends move synchronously with the transmission rod 73. Since the outer circumferential surface of the rollers 74 rolls in contact with the bottom surface of the feeding adjustment plate 71, and the two rollers 74 are symmetrically arranged along the axis of the transmission rod 73, as the transmission rod 73 pushes the feeding adjustment plate 71 to rotate around the connecting shaft 711, the rollers 74 roll along the bottom of the feeding adjustment plate 71. The two symmetrically arranged rollers 74 can evenly distribute the force, improving the stability of the transmission process.
[0031] like Figure 2 As shown, the stirring assembly 4 includes a rotating shaft 41 and multiple stirring rods 42. The rotating shaft 41 is rotatably disposed inside the feeding hopper 1, and the upper end of the rotating shaft 41 extends outside the feeding hopper 1 and is connected to the output shaft of the drive motor 6. The multiple stirring rods 42 are evenly spaced and fixed on the rotating shaft 41. Specifically, a bearing is provided at the connection between the rotating shaft 41 and the feeding hopper 1. The drive motor 6 drives the rotating shaft 41 extending outside the feeding hopper 1 to rotate, and the multiple stirring rods 42 fixed on the rotating shaft 41 rotate synchronously with the rotating shaft 41. Since the stirring rods 42 are evenly spaced, they can stir the material in the feeding hopper 1 during rotation to prevent the material from clumping.
[0032] like Figure 2As shown, the lower end of the rotating shaft 41 extends into the vertical material tube 3. The feeding component 5 is a spiral blade. The feeding component 5 surrounds the rotating shaft 41 and is fixedly installed in the lower part of the rotating shaft 41 located in the vertical material tube 3. When the rotating shaft 41 rotates, it drives the spiral blade to rotate synchronously. During the rotation, the spiral blade generates a pushing force on the material entering the vertical material tube 3, and conveys the material downward along the vertical material tube 3, avoiding the material from being stuck or blocked in the vertical material tube 3, and ensuring the continuity of feeding.
[0033] like Figure 3 As shown, the inner wall of the guide groove 712 is provided with a self-lubricating coating, which is a polytetrafluoroethylene coating. The self-lubricating coating can reduce the frictional resistance between the transmission rod 73 and the guide groove 712, reduce component wear, and extend the service life of both.
[0034] like Figure 2 As shown, two stroke sensors 8 are fixedly installed on the inner wall of the regulating chamber 2. The two stroke sensors 8 are set one-to-one with the two feeding regulating components 7. The detection end of the stroke sensor 8 is arranged along the extension and retraction direction of the extension rod of the corresponding drive cylinder 72 to detect the extension and retraction amount of the extension and retraction of the extension rod of the drive cylinder 72. The stroke sensor 8 is electrically connected to a controller (not shown in the figure). The controller is electrically connected to the drive motor 6 and the drive cylinder 72 of each feeding regulating component 7. Specifically, a stop 9 is fixedly provided at the end of the extension rod of the drive cylinder 72. The stroke sensor 8 is an infrared distance sensor. The controller is electrically connected to a human-machine interface. The extension and retraction amount is obtained by detecting the distance of the stop 9 at the end of the extension rod of the drive cylinder 72 through the stroke sensor 8. The stroke sensor 8 transmits the signal to the controller. The controller controls the speed of the drive motor 6 and the extension and retraction of each drive cylinder 72 in conjunction with the instructions input by the human-machine interface. The setting of the stroke sensor 8 makes it convenient for the operator to control the size of the material falling channel between the two feeding regulating plates 71 through the human-machine interface and the controller.
[0035] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A roll press feeding device characterized by: It includes a feeding hopper and an adjusting hopper. The bottom of the feeding hopper and the top of the adjusting hopper are connected by a vertical material pipe. A stirring assembly is rotatably installed inside the feeding hopper. A feeding component is installed inside the vertical material pipe. The feeding component is connected to the stirring assembly and rotates synchronously with the stirring assembly. A drive motor for driving the stirring assembly to rotate is fixed at the top of the feeding hopper. Two feeding adjusting assemblies are provided in the adjusting hopper.
2. A roll press feed apparatus according to claim 1, wherein: The feeding adjustment assembly includes a feeding adjustment plate, a drive cylinder, and a transmission rod. The feeding adjustment plate is inclinedly disposed within the adjustment chamber. Connecting shafts are fixed on both sides of the upper end of the feeding adjustment plate, and the two connecting shafts are rotatably connected to the two side walls of the adjustment chamber in a one-to-one correspondence. The drive cylinder is fixed to the outer side wall of the adjustment chamber, and the telescopic rod of the drive cylinder extends horizontally into the adjustment chamber. The transmission rod is fixed to the end of the telescopic rod of the drive cylinder. A pair of guide grooves adapted to the transmission rod are symmetrically provided on the feeding adjustment plate, and the end of the transmission rod is embedded in the guide groove and slidably connected to the guide groove.
3. A roll press feed apparatus according to claim 2, wherein: Two rollers are rotatably mounted on the transmission rod. The two rollers are symmetrically arranged along the axis of the transmission rod, and the outer circumferential surface of the rollers makes rolling contact with the bottom surface of the feeding adjustment plate.
4. A roll press feed apparatus according to claim 1, wherein: The stirring assembly includes a rotating shaft and multiple stirring rods. The rotating shaft is rotatably disposed inside the feeding hopper, and the upper end of the rotating shaft extends outside the feeding hopper and is connected to the output shaft of the drive motor. The multiple stirring rods are evenly spaced and fixed on the rotating shaft.
5. A roll press feed apparatus according to claim 4, wherein: The lower end of the rotating shaft extends into the vertical material tube, and the feeding component is a spiral blade. The feeding component surrounds the rotating shaft and is fixedly installed at the lower end of the rotating shaft located inside the vertical material tube.
6. A roll press feed apparatus according to claim 2, wherein: The inner wall of the guide groove is provided with a self-lubricating coating, which is a polytetrafluoroethylene coating.
7. A roll press feed apparatus according to claim 2, wherein: Two stroke sensors are fixedly installed on the inner wall of the adjustment chamber. The two stroke sensors are arranged one-to-one with the two feeding adjustment components. The detection end of the stroke sensor is arranged along the extension and retraction direction of the extension rod of the corresponding drive cylinder to detect the extension and retraction amount of the extension rod of the drive cylinder. The stroke sensor is electrically connected to a controller, which is electrically connected to the drive motor and the drive cylinder of each feeding adjustment component.