Feeding device for bio-based liquid rubber
By designing feeding devices for a conical double feeder and a single screw extruder, the problem of unstable material conveying in traditional feeding devices was solved, achieving stable feeding and temperature control of bio-based liquid rubber, thereby improving production efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU LVJINREN TECH CO LTD
- Filing Date
- 2025-04-22
- Publication Date
- 2026-04-21
AI Technical Summary
Traditional feeding devices are prone to slippage during material conveying, resulting in unstable feeding, making it difficult to ensure consistent product quality, and making it difficult to accurately control the feeding amount and material temperature, which affects the efficiency of continuous production and product quality.
A feeding device comprising a conical double feeder and a single screw extruder was designed. The conical screw has grooves to reduce material slippage. Combined with a pressure transmitter and a temperature control system, quantitative feeding and precise temperature control are achieved to ensure continuous processing of materials under optimal conditions.
It achieves stable material conveying and precise feeding, improves the stability and accuracy of feeding, ensures the consistency of product quality, and improves the efficiency and effectiveness of continuous production.
Smart Images

Figure CN224145313U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of production equipment for bio-based liquid rubber, and particularly relates to a feeding device for bio-based liquid rubber. Background Technology
[0002] In the production process of bio-based liquid rubber, the feeding process is crucial to ensuring smooth production and product quality.
[0003] Traditional feeding devices are prone to slippage during material transport, resulting in unstable feeding and difficulty in ensuring consistent product quality, which is extremely detrimental to quality control in continuous processing. At the same time, they are difficult to precisely control the feeding amount and cannot feed quantitatively according to the needs of subsequent equipment, which seriously restricts the efficiency improvement of continuous production. In addition, the material temperature control is not precise enough, which prevents bio-based liquid rubber from being processed continuously under optimal conditions, affecting the final quality of the product. Utility Model Content
[0004] The purpose of this invention is to provide a feeding device for bio-based liquid rubber in order to solve the problem of slippage that easily occurs during material conveying in traditional feeding devices.
[0005] This utility model achieves the above-mentioned objectives through the following technical solution: It includes a support frame, with a conical double feeder mounted on top of the support frame. The conical double feeder includes a barrel, with a feed inlet on top of the barrel. A through-beam switch is located at the upper end of the feed inlet. Two conical screws are symmetrically arranged inside the barrel. A first motor is mounted on the side of each conical screw. Several grooves are arranged around the threads of the conical screws. A discharge port is located on the side of the barrel away from the first motors. A fixed base is located on the side of the support frame, and a movable seat is located above the fixed base. Both sides of the movable seat are equipped with… A number of movable rollers are provided. A single-screw extruder is mounted above the movable base. The single-screw extruder includes a machine body. A heating barrel is provided at one end of the machine body. A material inlet is connected to the upper part of one end of the heating barrel. An extrusion port is connected to the end of the heating barrel away from the material inlet. A rotating screw is provided inside the heating barrel. A hollow screw is connected to the end of the machine body away from the heating barrel. A rotary joint is connected to the side of the hollow screw. A coupling is connected to the side of the machine body. A second motor is provided on the side of the coupling. A speed reducer is provided on the side of the coupling away from the second motor.
[0006] Furthermore, the first motor is located on the side of the barrel away from the single-screw extruder, and the first motor is fixedly connected to the upper part of the support.
[0007] Furthermore, the support is inclined, and the conical double feeder is fixed parallel to the support above it, with the end of the conical double feeder closest to the single screw extruder being the lowest point.
[0008] Furthermore, the tapered screw has a narrow end near the discharge port, and the discharge port is located directly above the material outlet.
[0009] Furthermore, the upper surface of the fixed base is provided with a track, and the movable roller is movably connected to the track of the fixed base.
[0010] Furthermore, the coupling, the second motor, and the movable seat are fixedly connected.
[0011] Furthermore, the speed reducer is fixedly connected to the movable base.
[0012] Beneficial effects: This utility model is reasonably designed and has the following beneficial effects:
[0013] 1. Stable feeding: The conical screw of the cone double feeder has several grooves around it, which can effectively reduce material slippage and ensure stable material conveying. At the same time, a pressure transmitter is installed between the discharge port and the barrel, which can automatically adjust the speed of the cone double feeder according to the pressure, realizing the function of quantitative feeding of the single screw extruder to the downstream equipment, which greatly improves the stability and accuracy of feeding.
[0014] 2. Facilitates material discharge: The bracket is tilted at the top, and the conical double feeder is fixed parallel to the bracket with the end closest to the single screw extruder being the lowest point. This design facilitates material discharge and improves the overall conveying efficiency.
[0015] 3. Precise temperature control: The heating barrel of the single-screw extruder is equipped with a heater and thermocouple. The hollow screw is connected to the rotating screw and can be circulated with cold water through a rotary joint. The two work together to control the material temperature, which is beneficial for the processing of bio-based liquid rubber at a suitable temperature and ensures product quality.
[0016] 4. Continuous production: The conical twin-feeder and single-screw extruder work together, and with the addition of barrel and cold water, bio-based liquid rubber can be processed at the optimal temperature, enabling continuous feeding and extrusion. This reduces downtime and waiting time in the production process, improves production efficiency, and allows for continuous production. Attached Figure Description
[0017] Figure 1 This is the front view of the present utility model;
[0018] Figure 2 This is a right view of the present invention;
[0019] Figure 3This is a top view of the present invention;
[0020] Figure 4 This is a partial enlarged view of A of this utility model.
[0021] In the diagram: 1-Bracket, 2-Fixed base, 3-Double conical feeder, 31-Barrel, 32-Feed inlet, 33-Conical screw, 34-Groove, 35-First motor, 36-Thrust switch, 37-Discharge port, 4-Moving seat, 5-Single screw extruder, 51-Machine body, 52-Material inlet, 53-Extrusion port, 54-Heating barrel, 55-Rotating screw, 56-Hollow screw, 57-Rotary joint, 58-Coupling, 59-Second motor, 510-Reducer, 13-Moving roller. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0023] Combination Figures 1 to 4The feeding device shown includes a support 1, with a conical double feeder 3 mounted above the support 1. The conical double feeder 3 includes a barrel 31, with a feed inlet 32 above the barrel 31. A through-beam switch 36 is located at the upper end of the feed inlet 32; the through-beam switch 36 can control the feeding of material to the front-end equipment when the material level is lower than the material level. Two conical screws 33 are symmetrically arranged inside the barrel 31. A first motor 35 is mounted on the side of each conical screw 33. Several concave grooves are arranged around the ridges of the conical screws 33. Groove 34; The groove 34 on the screw thread can reduce material slippage; The barrel 31 has a discharge port 37 on the side away from the first motor 35; The support 1 has a fixed base 2 on its side; A movable seat 4 is provided above the fixed base 2; Several movable rollers 13 are provided on both sides of the movable seat 4; A single screw extruder 5 is provided above the movable seat 4; The single screw extruder 5 includes a machine body 51; A heating barrel 54 is provided at one end of the machine body 51; The heating barrel 54 has a heater and thermocouple inside for heating control, which can control the material temperature. The heating barrel 54 has a material inlet 52 connected to one end above the material inlet 52, and an extrusion outlet 53 connected to the other end of the heating barrel 54 away from the material inlet 52. A rotating screw 55 is installed inside the heating barrel 54. The rotating screw 55 located below the material inlet 52 has a constant pitch at its discharge end for stable feeding, while the pitch of the rotating screw 55 near the extrusion outlet 53 gradually decreases at its discharge end for material compression and uniform discharge. A hollow screw 56 is connected to the end of the machine body 51 away from the heating barrel 54, and a rotating screw 56 is connected to the side of the machine body 51. Connector 57; A solenoid valve is provided between the hollow screw and the machine body 51 to control the material temperature in conjunction with the heater on the barrel; The rotating screw 55 is hollow inside and connected to the hollow screw 65, and cold water can be circulated through the rotary connector 57; A coupling 58 is connected to the side of the machine body 51, and a second motor 59 is provided on the side of the coupling 58. A reducer 510 is provided on the side of the coupling 58 away from the second motor 59; The motor, the through-beam switch, and the rotary connector in this utility model are all prior art and will not be described in detail.
[0024] The first motor 35 is located on the side of the barrel 31 away from the single screw extruder 5, and the first motor 35 is fixedly connected to the top of the bracket 1.
[0025] The bracket 1 is inclined, and the conical double feeder 3 is fixed parallel to the bracket 1. The end of the conical double feeder 3 closest to the single screw extruder 5 is the lowest point; the inclined conical double feeder 3 facilitates material discharge.
[0026] The tapered screw 33 has a narrow end near the discharge port 37, which is located directly above the material inlet 52. A pressure transmitter is installed between the discharge port 37 and the barrel 31 to set a certain pressure. The speed of the tapered double feeder is automatically adjusted according to the pressure. When the pressure is high, it means that there is too much material being fed, and the speed of the tapered double feeder needs to be reduced. When the pressure is low, the speed of the tapered double feeder is increased. In this way, the single screw extruder can achieve the function of quantitatively feeding subsequent equipment.
[0027] The upper surface of the fixed base 2 is provided with a track, and the movable roller 13 is movably connected to the track of the fixed base 2; the movable roller is a roller with a limit function, so that it can be easily moved backward and removed from the extruder during maintenance.
[0028] The coupling 58, the second motor 59, and the movable seat 4 are fixedly connected.
[0029] The reducer 510 is fixedly connected to the movable base 4; the reducer is connected to the second motor 59.
[0030] Working principle: In use, the material is fed from the front end of the device and enters the barrel 31 through the feed port 32. The conical screw 33 is driven to rotate by the first motor, which drives the material through the discharge port 37 to the material port 52. Then, the material enters the heating barrel 54 of the single screw extruder 5. The rotating screw 55 is driven to rotate by the second motor and coupling, which drives the material through the extrusion port 53 and compresses and transports it to the next station.
[0031] This invention is not limited to the details of the exemplary embodiments described above, and can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0032] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A feeding device for bio-based liquid rubber, characterized by: The system includes a support frame (1), a conical double feeder (3) above the support frame (1), a barrel (31) above the barrel (31) with a feed inlet (32) above the barrel (31), a through-beam switch (36) inside the feed inlet (32) at the upper end, two conical screws (33) symmetrically arranged inside the barrel (31), a first motor (35) on the side of each conical screw (33), several grooves (34) surrounding the ridges of the conical screws (33), a discharge port (37) on the side of the barrel (31) away from the first motor (35), a fixed base (2) on the side of the support frame (1), a movable seat (4) above the fixed base (2), several movable rollers (13) on both sides of the movable seat (4), and the movable seat (4) A single-screw extruder (5) is provided above. The single-screw extruder (5) includes a machine body (51). A heating barrel (54) is provided at one end of the machine body (51). A material port (52) is connected to the upper part of one end of the heating barrel (54). An extrusion port (53) is connected to the end of the heating barrel (54) away from the material port (52). A rotating screw (55) is provided inside the heating barrel (54). A hollow screw (56) is connected to the end of the machine body (51) away from the heating barrel (54). A rotary joint (57) is connected to the side of the hollow screw (56). A coupling (58) is connected to the side of the machine body (51). A second motor (59) is provided on the side of the coupling (58). A reducer (510) is provided on the side of the coupling (58) away from the second motor (59).
2. A feeding device for bio-based liquid rubber according to claim 1, characterized in that: The first motor (35) is located on the side of the barrel (31) away from the single screw extruder (5), and the first motor (35) is fixedly connected to the top of the bracket (1).
3. A feeding device for bio-based liquid rubber as claimed in claim 1, characterized in that: The support (1) is inclined, and the conical double feeder (3) is fixed parallel to the support (1) above it. The end of the conical double feeder (3) closest to the single screw extruder (5) is the lowest point.
4. A feeding device for bio-based liquid rubber as claimed in claim 1, characterized in that: The tapered screw (33) has a narrow end near the discharge port (37), which is located directly above the material outlet (52).
5. A feeding device for bio-based liquid rubber as claimed in claim 1, characterized in that: The upper surface of the fixed base (2) is provided with a track, and the movable roller (13) is movably connected to the track of the fixed base (2).
6. A feeding device for bio-based liquid rubber as claimed in claim 1, characterized in that: The coupling (58), the second motor (59), and the movable seat (4) are fixedly connected.
7. A feeding device for bio-based liquid rubber as claimed in claim 1, characterized in that: The speed reducer (510) is fixedly connected to the movable seat (4).