Conveyor bed thickness control device
By setting baffles and locking components in the trough of the twin-shaft screw conveyor to adjust the material layer thickness, and by using a vibrating motor and nozzles to solve the problem of slow feeding of lightweight materials, stable control of the material layer thickness and improvement of conveying efficiency are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIAOZUO ZHENJIENNEG DRYING EQUIP DEV
- Filing Date
- 2025-08-11
- Publication Date
- 2026-05-29
AI Technical Summary
Twin-shaft screw conveyors have a slow feeding speed and uncontrollable material layer thickness when conveying lightweight materials, which can easily lead to overload or blockage and affect the stability of conveying efficiency.
A baffle and locking assembly are installed in the trough. The thickness of the material layer is controlled by adjusting the tilt angle of the baffle by rotating the horizontal shaft, and the material is slid by a vibrating motor. The material moisture is adjusted by the nozzle to increase the feeding speed.
It effectively controls the material layer thickness, avoids overload and blockage, ensures the stability of conveying efficiency, and alleviates the problem of slow feeding speed of lightweight materials.
Smart Images

Figure CN224298078U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of material conveying, and in particular to a conveyor material layer thickness control device. Background Technology
[0002] A twin-screw conveyor is a device that uses two solid screws, one left-handed and one right-handed, to mesh and rotate within a seamless steel pipe or U-shaped trough to achieve axial material transport. Its conveying capacity is 1.5-2 times that of a single-screw conveyor. It can gently handle materials, also has a mixing function, and produces low dust emissions. It is widely used in the food, chemical, and other industries, combining high efficiency, environmental friendliness, and multifunctionality.
[0003] Regarding twin-screw conveyors, please refer to the utility model patent application number CN2022231193602, which proposes a twin-screw conveyor that is easy to clean. When conveying lighter materials, the material feeds slowly into the hopper due to its small weight, resulting in a small conveying capacity of the twin screw shafts and affecting the conveying efficiency. Furthermore, such conveyors generally cannot control the thickness of the material layer, which can lead to overload or blockage, affecting the stability of the conveying efficiency. Utility Model Content
[0004] To address the aforementioned problems, this utility model proposes a conveyor material layer thickness control device.
[0005] The technical solution of this utility model is: a material layer thickness control device for a conveyor, including a dual-shaft conveyor body, a thickness control mechanism is provided on the material trough on one side of the feed hopper of the dual-shaft conveyor body, and support legs are provided at both ends of the material trough; the thickness control mechanism includes a horizontal shaft, a baffle and a locking component, the width of the baffle is the same as the internal width of the material trough, the horizontal shaft is rotatably connected between the upper ports of the material trough, the baffle is set in the material trough and can swing in the material trough, two arc-shaped notches are provided side by side at the lower part of the baffle, a certain distance is provided between the two arc-shaped notches, the two arc-shaped notches are matched and fitted into the upper part of the two auger shafts, the upper end of the baffle is fixedly connected to the horizontal shaft, and the locking component is connected to one end of the horizontal shaft.
[0006] Preferably, the locking assembly includes a sector plate and a U-shaped seat. The sector plate has a handle at its right-angled corner. The handle and the sector plate are connected to a horizontal shaft. The outer end of the horizontal shaft has a square shaft. The sector plate has a square hole that fits onto the square shaft. The U-shaped seat is fixed to the outer side of the material trough. The arc-shaped edge of the sector plate has a plurality of outer pin holes evenly distributed along the circumference. The middle part of the U-shaped seat has an inner pin hole that corresponds to the position of each outer pin hole. The outer pin holes and inner pin holes are the same size and are both round holes. Bolts or pins connect the outer pin holes and inner pin holes.
[0007] Preferably, the outer side of the horizontal shaft is provided with a mating plane, the length of which is the same as the length of the baffle. The upper end of the baffle is attached to the mating plane, and a locking bolt is radially connected between the horizontal shaft and the baffle. Both ends of the bolt are provided with washers.
[0008] Preferably, both ends of the horizontal shaft are connected to seated bearings, and the two seated bearings are fixed on the two side plates of the material trough, with the seated bearings on both sides arranged symmetrically.
[0009] Preferably, a vibration motor is provided on the lower part of the outer side of the feed hopper, and a support is installed on the side of the feed hopper, with the vibration motor fixed on the support.
[0010] Preferably, the front end of the material trough is provided with a number of nozzles arranged side by side, the nozzle nozzles extend into the material trough, the nozzles are provided with valves, and the nozzles are connected through a water inlet pipe.
[0011] Preferably, the outer ends of the two auger shafts are connected to gears, the two gears mesh in an arc, one of the gears is connected to the power source via a chain, and a sprocket is coaxially connected to the other gear, which is also connected to the power source via a chain.
[0012] The beneficial technical effects of this utility model are:
[0013] (1) The present invention is provided with a baffle in the trough. The tilt angle of the baffle can be adjusted by rotating the horizontal shaft, thereby changing the height of the lower end of the baffle from the bottom plate of the trough, so as to control the height of the material layer. The baffle is locked after the horizontal shaft is rotated and adjusted by setting a locking component, so as to ensure that the baffle is in a stable material layer control state, effectively avoiding the overload or blockage of the conveyor due to the excessive thickness of the material layer, and ensuring the stability of its conveying efficiency.
[0014] (2) The present invention has a vibration motor installed at the bottom of the feeding hopper. The vibration force generated by the vibration motor causes the material to slide down in the hopper, which alleviates the problem of slow feeding speed of lightweight materials in the hopper. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0016] Figure 2 yes Figure 1 A schematic diagram of the AA-direction cross-section structure;
[0017] Figure 3 This is a three-dimensional structural schematic diagram of the present invention;
[0018] Figure 4 This is a three-dimensional structural diagram of the thickness control mechanism;
[0019] Figure 5This is a schematic diagram of the main structure of the thickness control mechanism;
[0020] Figure 6 yes Figure 5 Schematic diagram of the BB-direction cross-section structure.
[0021] In the diagram, 11. Feed hopper, 12. Feed trough, 13. Vibrating motor, 14. Screw shaft, 2. Horizontal shaft, 21. Butt joint plane, 22. Locking bolt, 23. Bearing with seat, 3. Baffle, 31. Arc-shaped notch, 4. Locking assembly, 41. Fan-shaped plate, 42. Handle, 43. Outer pin hole, 44. Bolt or pin, 45. U-shaped seat, 51. Nozzle, 52. Water inlet pipe, 61. Gear, 62. Chain, 63. Power source. Detailed Implementation
[0022] Example 1, see appendix Figure 1-5 A material layer thickness control device for a conveyor includes a dual-shaft conveyor body. A thickness control mechanism is provided on the trough 12 on one side of the feed hopper 11 of the dual-shaft conveyor body. The thickness control mechanism includes a horizontal shaft 2, a baffle 3, and a locking component 4. The horizontal shaft 2 is rotatably connected between the upper ports of the trough 12. The baffle 3 is set inside the trough 12. Two arc-shaped notches 31 are arranged side by side on the lower part of the baffle 3. The two arc-shaped notches 31 are fitted into the upper part of the two auger shafts 14. The arc-shaped notches can avoid the conflict between the baffle and the auger shaft. At the same time, the arc-shaped notches 31 can also avoid the problem of avoiding the auger shaft 14 by reducing the size of the baffle 3, thereby improving its material layer control range. The upper end of the baffle is fixedly connected to the horizontal shaft, and the locking component 4 is connected to one end of the horizontal shaft 2.
[0023] A vibration motor 13 is provided on the lower part of the outer side of the feed hopper 11. The vibration force generated by the vibration motor causes the material to slide downward in the hopper, which alleviates the problem of slow feeding speed of lightweight materials in the hopper.
[0024] The front end of the material trough 12 is provided with several nozzles 51 arranged side by side. Each nozzle is equipped with a valve and is connected to a water inlet pipe 52. Water is sprayed through the nozzles to adjust the humidity of the material. For lightweight materials, this can reduce their bulkiness and facilitate rapid material discharge and conveying.
[0025] Gears 61 are connected to the outer ends of both auger shafts 14. The two gears mesh with each other. One of the gears 61 is connected to the power source 63 through a chain 62. The power source drives the gear to rotate through the chain. The meshing and rotating of the two gears drives the two auger shafts 14 to rotate in opposite directions to transport materials.
[0026] Example 2, see appendix Figure 2-6This embodiment is basically the same as Embodiment 1, and the similarities will not be repeated. The difference is that the locking component 4 includes a sector plate 41 and a U-shaped seat 45. A handle 42 is provided at the right angle of the sector plate 41. The connection between the handle and the sector plate is connected to the horizontal axis 2. Holding the handle 42 can drive the lower sector plate 41 to rotate and swing. The U-shaped seat 45 is fixed to the outer side of the material trough 12 by bolts. The arc edge of the sector plate 41 is evenly provided with a number of outer pin holes 43 in the circumferential direction. The included angle between two adjacent outer pin holes is an adjustment position of the baffle 3. The middle part of the U-shaped seat 45 is provided with an inner pin hole that corresponds to the position of each outer pin hole 43. A bolt or pin 44 is connected between the outer pin hole 43 and the inner pin hole. After the bolt or pin 44 is installed between the outer pin hole 43 and the inner pin hole, the sector plate and the U-shaped seat are locked, and then the baffle 3 in the material trough 12 is locked by the horizontal axis 2.
[0027] The outer side of the horizontal shaft 2 is provided with a mating plane 21. The upper end of the baffle 3 is attached to the mating plane 21. A locking bolt 22 is radially connected between the horizontal shaft and the baffle. The mating plane 21 enables the baffle 3 and the outer side of the horizontal shaft 2 to fit fully together. The two can be fastened and locked together as one by the locking bolt 22.
[0028] Both ends of the horizontal shaft 2 are connected to bearings 23 with seats. The two bearings 23 are fixed on the two side plates of the material trough 12. The bearings 23 support the horizontal shaft 2 from both ends by rotation, thereby improving its rotation and support stability.
[0029] When using the locking component 4, hold the handle 42 and rotate the horizontal shaft 2. The horizontal shaft drives the baffle 3 in the trough 12 to swing, changing the height of the lower end of the baffle 3 from the bottom plate of the trough 12, thereby controlling the material layer height. While the baffle 3 is being adjusted, the fan-shaped plate 41 below the handle 42 rotates accordingly. The outer pin holes 43 of different gears correspond to the inner pin holes in sequence. After adjustment, a pin is installed between the outer pin hole and the inner pin hole to lock it, ensuring that the baffle is in a stable material layer control state, effectively preventing the conveyor from overloading or clogging due to excessive material layer thickness.
Claims
1. A conveyor material layer thickness control device, comprising a twin-shaft conveyor body, characterized in that: A thickness control mechanism is provided on the feed trough on one side of the feed hopper of the twin-shaft conveyor body. The thickness control mechanism includes a horizontal shaft, a baffle and a locking assembly. The horizontal shaft is rotatably connected between the upper ports of the feed trough. The baffle is set inside the feed trough. Two arc-shaped notches are arranged side by side at the lower part of the baffle. The two arc-shaped notches are matched and fitted into the upper part of the two auger shafts. The upper end of the baffle is fixedly connected to the horizontal shaft. The locking assembly is connected to one end of the horizontal shaft.
2. The conveyor material layer thickness control device according to claim 1, characterized in that: The locking assembly includes a sector plate and a U-shaped seat. The sector plate has a handle at the right angle, and the connection between the handle and the sector plate is connected to the horizontal axis. The U-shaped seat is fixed to the outer side of the material trough. The arc-shaped edge of the sector plate is evenly provided with a number of outer pin holes along the circumferential direction. The middle part of the U-shaped seat is provided with an inner pin hole that corresponds to the position of each outer pin hole. Bolts or pins are connected between the outer pin holes and the inner pin holes.
3. The conveyor material layer thickness control device according to claim 1, characterized in that: The outer side of the horizontal shaft is provided with a mating plane, the upper end of the baffle is attached to the mating plane, and a locking bolt is radially connected between the horizontal shaft and the baffle.
4. The conveyor material layer thickness control device according to claim 1, characterized in that: Both ends of the horizontal shaft are connected to seated bearings, and the two seated bearings are fixed to the two side plates of the material trough.
5. The conveyor material layer thickness control device according to claim 1, characterized in that: A vibration motor is installed on the lower part of the outer side of the feed hopper.
6. The conveyor material layer thickness control device according to claim 1, characterized in that: The front end of the feed trough is provided with several nozzles arranged side by side, each nozzle is equipped with a valve, and the nozzles are connected through a water inlet pipe.
7. The conveyor material layer thickness control device according to claim 1, characterized in that: The outer ends of the two auger shafts are connected to gears, which mesh in an arc shape. One of the gears is connected to the power source via a chain.