A cold feed extruder dosing mechanism

Abstract

The utility model discloses a kind of cold feeding extruder ration feeding mechanism, including feed hopper, drive motor one, the middle part of the lower end of feed hopper is provided with ration feeding adjustment mechanism, the ration feeding adjustment mechanism includes discharge hopper, the middle part of the lower end of feed hopper is fixed in discharge hopper, the bottom of the inner wall of feed hopper is rotatably connected with discharging adjusting block by setting pivot, the side surface of discharging adjusting block is rotatably connected with pull rod by setting containing groove, the inner wall of containing groove is rotatably connected with pull rod by setting pivot.The utility model is set to ration feeding adjustment mechanism, feed hopper, the speed of discharging and component can be relatively accurate control, so that feeding keeps unceasingly, and also can be flexibly adjusted according to actual production demand, effectively avoid the production problem caused by too much or too little feeding, maintain the stability and continuity of production process, improve the quality of product.

Description

Technical Field

[0001] This utility model relates to the field of cold feed extruder processing, and in particular to a quantitative feeding mechanism for a cold feed extruder. Background Technology

[0002] As a crucial processing equipment in the rubber industry, the cold feed extruder uses the rotation of the screw to extrude, shear, and heat rubber materials at room temperature, promoting plasticization and continuous extrusion molding. With its unique advantages, it has become an indispensable core equipment in the modern rubber industry. It continuously breaks through processing limits and provides strong technical support for the high-quality production of rubber products and the application of new materials.

[0003] However, the existing quantitative feeding mechanism for cold-feed extruders still has some problems in practical use: the cold-feed extruder will continue to feed materials during the feeding process, which makes it difficult to accurately control the quantitative feeding process. This can easily lead to unstable rubber material entering the extruder, sometimes too much, causing the extruded product to have out-of-tolerance dimensions and uneven quality, which is difficult to adjust according to actual production needs. Utility Model Content

[0004] This invention provides a quantitative feeding mechanism for a cold-feed extruder to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A quantitative feeding mechanism for a cold feed extruder includes a feeding hopper and a drive motor. A quantitative feeding adjustment mechanism is provided in the middle of the lower end of the feeding hopper.

[0007] The quantitative feeding adjustment mechanism includes a feeding funnel, which is fixed at the middle of the lower end of the feeding funnel. A feeding adjustment block is rotatably connected to the bottom of the inner wall of the feeding funnel via a rotating shaft. A receiving groove is opened on one side of the feeding adjustment block. A pull rod is rotatably connected to the inner wall of the receiving groove via a rotating shaft. A movable rod is rotatably connected to one end of the pull rod. A turntable is rotatably connected to one end of the movable rod. A rotating motor is fixedly connected to the back of the turntable. A support plate is fixedly connected to the back of the rotating motor.

[0008] As a further improvement to this technical solution: the surface of the feeding funnel is provided with a sliding groove that matches the pull rod, and one end of the support plate is fixedly connected to one side edge of the lower end of the feeding funnel.

[0009] As a further improvement to this technical solution: the output end of the drive motor is fixedly connected to a shearing and mixing screw, one end of the shearing and mixing screw is rotatably connected to a connecting sleeve, and one end of the connecting sleeve is fixedly connected to a protective shell.

[0010] As a further improvement to this technical solution: a connecting bracket is fixedly connected to the bottom of the surface of the feed funnel, and an external sleeve is fixedly connected to the lower end of the connecting bracket.

[0011] As a further improvement to this technical solution: a material extrusion hole is provided on the side of the front of the protective shell near the middle, a partition is fixedly connected to the middle of the inner bottom wall of the protective shell, a second drive motor is fixedly connected to one side of the partition, and a cutting blade is fixedly connected to the output shaft of the second drive motor.

[0012] As a further improvement to this technical solution: a receiving box is fixedly connected to the lower end of the protective shell, an equipment base is fixedly connected to the lower end of the drive motor, a reinforcing base frame is fixedly connected to the middle of the upper end of the equipment base, and a control panel is fixedly connected to the back of the protective shell.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] By setting up a quantitative feeding adjustment mechanism and a feeding funnel, the feeding speed and quantity can be controlled relatively precisely, ensuring continuous feeding while allowing for flexible adjustments based on actual production needs. This effectively avoids production problems caused by excessive or insufficient feeding, maintains the stability and continuity of the production process, and improves product quality.

[0015] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it according to the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. The specific implementation methods of this utility model are given in detail in the following embodiments and their accompanying drawings. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0017] Figure 1 This is a front structural schematic diagram of a quantitative feeding mechanism for a cold-feed extruder proposed in this utility model;

[0018] Figure 2 This is a schematic diagram of the rear structure of a quantitative feeding mechanism for a cold-feed extruder proposed in this utility model;

[0019] Figure 3 This is a schematic diagram showing the disassembled structure of a quantitative feeding mechanism for a cold-feed extruder proposed in this utility model;

[0020] Figure 4 This is a schematic diagram of the internal cross-sectional structure of the protective shell of a quantitative feeding mechanism for a cold feed extruder proposed in this utility model;

[0021] Figure 5 This is a top view of the quantitative feeding adjustment mechanism of a cold-feed extruder according to the present invention.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Feed hopper; 2. Drive motor 1;

[0024] 3. Quantitative feeding adjustment mechanism; 301. Feeding funnel; 302. Feeding adjustment block; 303. Receiving trough; 304. Pull rod; 305. Movable rod; 306. Turntable; 307. Rotary motor; 308. Support plate;

[0025] 4. Shearing and mixing screw; 5. Connecting sleeve; 6. Protective shell; 7. Connecting bracket; 8. External sleeve; 9. Extrusion hole; 10. Partition plate; 11. Drive motor II; 12. Cutting blade; 13. Receiving box; 14. Equipment base; 15. Reinforced base frame; 16. Control panel. Detailed Implementation

[0026] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of this utility model will become clearer from the following description and claims. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.

[0027] Please see Figures 1-5 In this embodiment of the present invention, a quantitative feeding mechanism for a cold feed extruder includes a feeding hopper 1, a drive motor 2, and a quantitative feeding adjustment mechanism 3 is provided in the middle of the lower end of the feeding hopper 1.

[0028] The quantitative feeding adjustment mechanism 3 includes a feeding funnel 301, a feeding adjustment block 302 fixed in the middle of the lower end of the feeding funnel 1, the bottom of the inner wall of the feeding funnel 1 is rotatably connected to the feeding adjustment block 302 by a rotating shaft, one side of the feeding adjustment block 302 is provided with a receiving groove 303, the inner wall of the receiving groove 303 is rotatably connected to a pull rod 304 by a rotating shaft, one end of the pull rod 304 is rotatably connected to a movable rod 305, one end of the movable rod 305 is rotatably connected to a turntable 306, the back of the turntable 306 is fixedly connected to a rotating motor 307, and the back of the rotating motor 307 is fixedly connected to a support plate 308.

[0029] The feeding funnel 301 has a protrusion at the corresponding position, which matches the shape of the feeding adjustment block 302. During feeding, the material throughput per unit time can be precisely controlled by the rotation angle of the feeding adjustment block 302. Combined with the speed adjustment function of the rotating motor 307, the dynamic and precise control of the extruder feed rate can be achieved.

[0030] The support plate 308 is connected to the lower end of the feed hopper 1, which can ensure the stability of the rotating motor 307 during operation and avoid the vibration generated by the operation of the rotating motor 307 from affecting the stability of the overall structure.

[0031] Please see Figure 1 , 5 The surface of the feeding hopper 301 is provided with a sliding groove that matches the pull rod 304, and one end of the support plate 308 is fixedly connected to one side edge of the lower end of the feeding hopper 1.

[0032] The groove on the surface of the feeding hopper 301 fits the pull rod 304, minimizing the possibility of material residue without affecting the sliding. At the same time, the edge of the groove is finely polished to ensure that the pull rod 304 will not scratch the surface of the feeding hopper 301 during reciprocating motion.

[0033] Please see Figures 1-3 The output end of the drive motor 2 is fixedly connected to a shearing and mixing screw 4. One end of the shearing and mixing screw 4 is rotatably connected to a connecting sleeve 5. One end of the connecting sleeve 5 is fixedly connected to a protective shell 6.

[0034] The surface of the shearing and mixing screw 4 is set in a spiral shape. When shearing and mixing materials, the spiral surface can increase the contact area with the materials, so that the materials are subjected to more uniform and sufficient shearing force, thereby effectively improving the mixing effect of the materials and allowing the components of the materials to blend better.

[0035] This spiral design can also generate a certain amount of thrust during rotation, which helps the material move steadily along the extrusion direction and avoids the accumulation or blockage of material during the mixing process, further ensuring the smoothness and stability of the extruder feeding.

[0036] One end of the connecting sleeve 5 is snapped into the shearing and mixing screw 4, and is fixedly connected to the protective shell 6 without affecting the rotation of the shearing and mixing screw 4. The advantage of doing this is that it can ensure that the shearing and mixing screw 4 has sufficient flexibility and stability during rotation, and the protective shell 6 can provide good protection for the connecting sleeve 5 and the shearing and mixing screw 4, avoiding interference or damage to them from external factors.

[0037] Please see Figures 1-2 A connecting bracket 7 is fixedly connected to the bottom of the surface of the feed funnel 1, and an outer sleeve 8 is fixedly connected to the lower end of the connecting bracket 7.

[0038] The inner diameter of the outer sleeve 8 is slightly larger than the cross-sectional diameter of the shearing and mixing screw 4, which allows the shearing and mixing screw 4 to rotate smoothly inside the outer sleeve 8. This prevents excessive shaking due to excessive clearance, which would affect the precision of material shearing and mixing, and also prevents friction with the inner wall of the outer sleeve 8 due to insufficient clearance, which would lead to increased equipment wear. This ensures the long-term stable and efficient operation of the quantitative feeding mechanism of the cold feed extruder.

[0039] Please see Figures 1-2 The protective shell 6 has a material extrusion hole 9 on one side of the front near the middle. A partition 10 is fixedly connected to the middle of the bottom wall of the protective shell 6. A second drive motor 11 is fixedly connected to one side of the partition 10. A cutting blade 12 is fixedly connected to the output shaft of the second drive motor 11.

[0040] The cutting blade 12 is close to the extrusion hole 9, and can quickly and accurately cut the material extruded from the extrusion hole 9 during the material shearing process, ensuring that the cut material is of uniform size, which is conducive to the stable progress of subsequent processing steps.

[0041] While providing support for the drive motor 11, the partition 10 also blocks the material splashed out after being cut by the cutting blade 12. The receiving box 13 is located at the bottom of the protective shell 6, and its opening corresponds to the area where the material falls blocked by the partition 10. It can accurately receive the material blocked by the partition 10, preventing the material from scattering around the equipment and causing pollution and waste. It also facilitates the subsequent collection and processing of the material.

[0042] Please see Figures 1-2 The lower end of the protective shell 6 is fixedly connected to the receiving box 13, the lower end of the drive motor 2 is fixedly connected to the equipment base 14, the middle of the upper end of the equipment base 14 is fixedly connected to the reinforcing base frame 15, and the back of the protective shell 6 is fixedly connected to the control panel 16.

[0043] The equipment base 14 serves as a fixed support for all equipment structural components, possessing excellent stability and load-bearing capacity. It ensures that the equipment will not shift or tilt due to vibration or external forces during operation, providing a solid guarantee for the stable operation of the entire cold feed extruder's quantitative feeding mechanism.

[0044] While the lower end of the reinforced base frame 15 is connected to the bottom of the equipment base 14, the upper end of the reinforced base frame 15 is connected to the protective shell 6 as a bottom support, which can effectively disperse the stress generated during equipment operation and avoid structural deformation or damage caused by excessive local stress.

[0045] The control panel 16 provides precise control and real-time display of various operating parameters of the cold feed extruder. Operators can easily set key parameters such as feed speed and extrusion pressure through the control panel 16, and can also intuitively view the current operating status of the equipment, such as temperature and speed, which facilitates timely adjustment and monitoring, ensuring that the cold feed extruder is always in the best working condition, effectively improving production efficiency and product quality.

[0046] The working principle of this utility model is as follows:

[0047] First, the material is fed into the feed hopper 1, where it accumulates on the discharge adjustment block 302. The rotating motor 307 is started, causing the turntable 306 to rotate. As the turntable 306 rotates, it drives the movable rod 305 to rotate clockwise. The movable rod 305 pulls the pull rod 304 back and forth, causing the discharge adjustment block 302 to tilt left and right around the rotating shaft set on the discharge hopper 301. The material will fall intermittently into the outer sleeve 8.

[0048] Next, start the drive motor 2 to drive the shearing and mixing screw 4 to mix and shear the material. The shearing and mixing screw 4 gradually pushes the material into the extrusion hole 9. After the material is extruded from the extrusion hole 9, it enters the protective shell 6. The drive motor 11 drives the cutting blade 12 to rotate and cut the material into uniform equal parts.

[0049] Finally, when the material splashes out, it will be blocked by the partition 10 and fall freely into the receiving box 13. The design of the receiving box 13 ensures that the material will not scatter outside the equipment during the shearing and extrusion process, avoiding waste or pollution of the working environment, and also facilitating the subsequent collection and reuse of the material.

[0050] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or equivalent variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are considered equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A quantitative feeding mechanism for a cold-feed extruder, comprising a feeding hopper (1) and a drive motor (2), characterized in that: A quantitative feeding adjustment mechanism (3) is provided in the middle of the lower end of the feeding funnel (1); The quantitative feeding adjustment mechanism (3) includes a feeding funnel (301), which is fixed at the middle of the lower end of the feeding funnel (1). The bottom of the inner wall of the feeding funnel (1) is rotatably connected to a feeding adjustment block (302) via a rotating shaft. One side of the feeding adjustment block (302) is provided with a receiving groove (303). The inner wall of the receiving groove (303) is rotatably connected to a pull rod (304) via a rotating shaft. One end of the pull rod (304) is rotatably connected to a movable rod (305). One end of the movable rod (305) is rotatably connected to a turntable (306). The back of the turntable (306) is fixedly connected to a rotating motor (307). The back of the rotating motor (307) is fixedly connected to a support plate (308).

2. The quantitative feeding mechanism for a cold-feed extruder according to claim 1, characterized in that, The surface of the feeding funnel (301) is provided with a sliding groove that is compatible with the pull rod (304), and one end of the support plate (308) is fixedly connected to one side edge of the lower end of the feeding funnel (1).

3. The quantitative feeding mechanism for a cold-feed extruder according to claim 1, characterized in that, The output end of the drive motor (2) is fixedly connected to a shearing and mixing screw (4), one end of the shearing and mixing screw (4) is rotatably connected to a connecting sleeve (5), and one end of the connecting sleeve (5) is fixedly connected to a protective shell (6).

4. The quantitative feeding mechanism for a cold-feed extruder according to claim 2, characterized in that, A connecting bracket (7) is fixedly connected to the bottom of the surface of the feed hopper (1), and an outer sleeve (8) is fixedly connected to the lower end of the connecting bracket (7).

5. The quantitative feeding mechanism for a cold-feed extruder according to claim 3, characterized in that, The protective shell (6) has a material extrusion hole (9) on the side near the center of the front. A partition (10) is fixedly connected to the center of the bottom wall of the protective shell (6). A second drive motor (11) is fixedly connected to one side of the partition (10). A cutting blade (12) is fixedly connected to the output shaft of the second drive motor (11).

6. The quantitative feeding mechanism for a cold-feed extruder according to claim 5, characterized in that, The lower end of the protective shell (6) is fixedly connected to a receiving box (13), the lower end of the drive motor (2) is fixedly connected to an equipment base (14), the middle of the upper end of the equipment base (14) is fixedly connected to a reinforcing base frame (15), and the back of the protective shell (6) is fixedly connected to a control panel (16).

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