Automatic feeding device of cold feeding extruder

Abstract

The utility model belongs to the technical field of cold feed rubber extruders, and discloses an automatic feeding device of a cold feed extruder, which comprises a base, a cold feed extruder body is arranged at the top of the base, a feeding hopper is fixedly mounted on the surface of the cold feed extruder body, a support is fixedly mounted at the top of the base, and a feeding hopper is fixedly mounted on the top of the support. An outer shell is fixedly installed at the top of the support, an inner shell is movably installed in the outer shell, a feeding pipe is fixedly installed at the top of the outer shell, and a discharging pipe is fixedly installed at the bottom of the outer shell. According to the intermittent blanking device, the blanking time and quantity can be accurately controlled, intermittent blanking is realized, so that the stability of an extrusion process is favorably kept, material accumulation or insufficiency caused by continuous blanking is avoided, meanwhile, the extruder can work according to a preset production rhythm due to intermittent blanking, and the production efficiency is improved. And the production interruption caused by unstable material supply is avoided, so that the production efficiency is improved, and the stability of the product quality is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of cold-feed rubber extruders, in particular to an automatic feeding device for cold-feed rubber extruders. Background Art

[0002] A cold feed extruder is a device used to produce plastic products. It uses a screw to push the plastic raw materials into the mold and shape them through extrusion of the mold. In this process, the feeding device plays a vital role. It is responsible for feeding the raw materials into the extruder. The automatic feeding device is an upgrade of the feeding device. It can automatically complete the feeding process and improve production efficiency and automation.

[0003] Existing cold feed extruders still have certain shortcomings in actual use: after the cold feed extruder completes automatic loading, the next key step is unloading. This process is crucial to the stability of subsequent processing and product quality. However, many cold feed extruders currently use a relatively simple and direct unloading method, that is, pouring the material directly from the storage hopper or conveying device into the extruder feed port. This unloading method may be able to meet production needs when the material flow is stable and the feeding is uniform.

[0004] However, in actual production, due to the influence of various factors such as material properties, conveying equipment accuracy, and operator experience, it is often difficult to maintain absolute stability in material supply. When the material supply is too much, direct material discharge will cause material accumulation at the extruder feed port or in the barrel, which will not only increase the load of the extruder, but may also cause the material to overheat and burn in the barrel, and even cause equipment failure. At the same time, the accumulated material may also block the discharge port, resulting in interruption of the extrusion process, seriously affecting production efficiency; on the contrary, when the material supply is insufficient, direct material discharge cannot meet the normal needs of the extruder, resulting in reduced extrusion volume, unstable product size and other problems. Once the material supply is interrupted, the entire production line will be affected, causing production stagnation and quality decline; more seriously, due to the unstable material supply, key parameters such as pressure and temperature in the extrusion process will also fluctuate, which will have an adverse effect on the physical properties, appearance quality and dimensional accuracy of the product. Utility Model Content

[0005] In order to solve the problems raised in the above background technology, the utility model provides an automatic feeding device for a cold feed extruder.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automatic feeding device for a cold feed extruder, comprising a base, a cold feed extruder body is provided on the top of the base, a feed hopper is fixedly installed on the surface of the cold feed extruder body, a bracket is fixedly installed on the top of the base, an outer shell is fixedly installed on the top of the bracket, an inner shell is movably installed inside the outer shell, a feeding pipe is fixedly installed on the top of the outer shell, a discharge pipe is fixedly installed on the bottom of the outer shell, a connecting pipe 1 is fixedly installed inside the top end of the inner shell, a connecting pipe 2 is fixedly installed inside the bottom end of the inner shell, a driving motor is fixedly installed on the top of the outer shell, and the output shaft of the driving motor is fixedly connected to the top of the inner shell.

[0007] Preferably, a feed pipe is fixedly installed at the bottom of the discharge pipe, a movable rod is movably installed inside the feed pipe, a spiral blade is fixedly installed on the surface of the movable rod, a feed pipe is fixedly installed at the bottom of the feed pipe, a servo motor is fixedly installed on the side of the feed pipe, and the output shaft of the servo motor is fixedly connected to one end of the movable rod.

[0008] Preferably, universal wheels are movably mounted on the bottom of the base, and there are four groups of universal wheels that are evenly distributed on the bottom of the base.

[0009] Preferably, a motor protection cover is provided on the side of the feeding pipe and the servo motor is located inside the motor protection cover, and heat dissipation holes are provided on the surface of the motor protection cover.

[0010] Preferably, a circular groove is formed at the inner bottom end of the outer shell, a circular plate is movably installed inside the circular groove, and the circular plate is fixedly connected to the bottom of the inner shell.

[0011] Preferably, the outer diameter of the feeding pipe is equal to the outer diameter of the connecting pipe 1, and the outer diameter of the connecting pipe 2 is equal to the outer diameter of the discharging pipe.

[0012] Preferably, the outer diameter of the spiral blade is equal to the inner diameter of the feed pipe, and the feed pipe is made entirely of stainless steel.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] 1. The utility model rotates the outer shell by the power of the driving motor. When the outer shell rotates one circle, the connecting pipe 2 overlaps with the discharge pipe and the material falls into the inner part of the feed pipe along the discharge pipe. Compared with the traditional device, this device can accurately control the time and amount of material discharge and realize intermittent material discharge, which helps to maintain the stability of the extrusion process and avoid material accumulation or shortage caused by continuous material discharge. At the same time, intermittent material discharge enables the extruder to work according to the predetermined production rhythm, avoiding production interruption caused by unstable material supply, thereby helping to improve production efficiency and ensure the stability of product quality.

[0015] 2. The utility model uses the power of a servo motor to rotate the spiral blades on the surface of the movable rod, and through the gaps generated between the spiral blades, the material is rolled in and transported to the top of the discharge pipe and falls through the inside of the discharge pipe to the inside of the feed hopper for subsequent operations. Compared with the traditional device, this device subjects the material to strong shearing and extrusion during the rolling process, thereby achieving forced conveying and mixing, which helps the material to be more evenly distributed in the subsequent extrusion process, improves the quality and performance of the product, and at the same time continuously generates friction and shearing effects between the subsequent material and the inner wall of the feed pipe and the spiral blades, thereby achieving plasticization, which helps the material to form a stable melt during extrusion and improves the strength and smoothness of the extruded product. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the front structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of the shell of the utility model;

[0019] Figure 4 For this utility model Figure 3 A schematic diagram of the partially enlarged structure at center A;

[0020] Figure 5 This is a schematic diagram of the cross-sectional structure of the material conveying pipe of the present utility model.

[0021] In the figure: 1. Base; 2. Cold feed extruder body; 3. Feed hopper; 4. Bracket; 5. Outer shell; 6. Inner shell; 7. Feeding pipe; 8. Connecting pipe 1; 9. Connecting pipe 2; 10. Discharge pipe; 11. Drive motor; 12. Feed pipe; 13. Feeding pipe; 14. Movable rod; 15. Spiral blade; 16. Servo motor; 17. Motor protection cover; 18. Heat dissipation hole; 19. Circular groove; 20. Circular plate; 21. Universal wheel. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] like Figures 1 to 5 As shown, the utility model provides an automatic feeding device for a cold feed extruder, comprising a base 1, a cold feed extruder body 2 is provided on the top of the base 1, a feed hopper 3 is fixedly installed on the surface of the cold feed extruder body 2, a bracket 4 is fixedly installed on the top of the base 1, an outer shell 5 is fixedly installed on the top of the bracket 4, an inner shell 6 is movably installed inside the outer shell 5, a feeding pipe 7 is fixedly installed on the top of the outer shell 5, a discharge pipe 10 is fixedly installed on the bottom of the outer shell 5, a connecting pipe 1 8 is fixedly installed inside the top end of the inner shell 6, a connecting pipe 2 9 is fixedly installed inside the bottom end of the inner shell 6, a driving motor 11 is fixedly installed on the top of the outer shell 5, and the output shaft of the driving motor 11 is fixedly connected to the top of the inner shell 6;

[0024] Adopting the above solution: This device can accurately control the time and amount of material discharge, realize intermittent material discharge, thereby helping to maintain the stability of the extrusion process and avoid material accumulation or shortage caused by continuous material discharge. At the same time, intermittent material discharge enables the extruder to work according to the predetermined production rhythm, avoiding production interruption caused by unstable material supply, thereby helping to improve production efficiency and ensure the stability of product quality.

[0025] like Figure 5 As shown, a feeding pipe 12 is fixedly installed at the bottom of the discharge pipe 10, a movable rod 14 is movably installed inside the feeding pipe 12, a spiral blade 15 is fixedly installed on the surface of the movable rod 14, a feeding pipe 13 is fixedly installed at the bottom of the feeding pipe 12, and a servo motor 16 is fixedly installed on the side of the feeding pipe 12, and the output shaft of the servo motor 16 is fixedly connected to one end of the movable rod 14;

[0026] The above scheme is adopted: through this device, the material is subjected to strong shearing and extrusion during the winding process, thereby achieving forced conveying and mixing, which helps the material to be more evenly distributed in the subsequent extrusion process, improving the quality and performance of the product. At the same time, the subsequent material continuously generates friction and shearing effects with the inner wall of the feed pipe 12 and the spiral blades 15, thereby achieving plasticization, which helps the material to form a stable melt during extrusion and improve the strength and smoothness of the extruded product.

[0027] like Figure 2As shown, universal wheels 21 are movably mounted on the bottom of the base 1. There are four sets of universal wheels 21 that are evenly distributed on the bottom of the base 1.

[0028] The above solution is adopted: by movably installing four sets of universal wheels 21 at the bottom of the base 1, and the four sets of universal wheels 21 are evenly distributed at the bottom of the base 1, so that the device can be moved, thereby improving the flexibility of the device.

[0029] like Figure 1 As shown, a motor protection cover 17 is provided on the side of the feeding pipe 12 and the servo motor 16 is located inside the motor protection cover 17. A heat dissipation hole 18 is provided on the surface of the motor protection cover 17.

[0030] The above solution is adopted: by providing a motor protection cover 17 on the side of the conveying pipe 12 and locating the servo motor 16 inside the motor protection cover 17, the servo motor 16 is protected from damage caused by impact of objects, and heat dissipation holes 18 are opened on the surface of the motor protection cover 17 to improve the heat dissipation of the servo motor 16.

[0031] like Figure 4 As shown, the inner bottom end of the outer shell 5 is provided with an annular groove 19, and an annular plate 20 is movably installed inside the annular groove 19 and the annular plate 20 is fixedly connected to the bottom of the inner shell 6;

[0032] The above solution is adopted: by opening a circular groove 19 at the inner bottom end of the outer shell 5, a circular plate 20 is movably installed inside the circular groove 19, and the circular plate 20 is fixedly connected to the bottom of the inner shell 6, so that the inner shell 6 is more stable when rotating inside the outer shell 5.

[0033] like Figure 3 As shown, the outer diameter of the feeding pipe 7 is equal to the outer diameter of the connecting pipe 1 8, and the outer diameter of the connecting pipe 2 9 is equal to the outer diameter of the discharging pipe 10;

[0034] The above solution is adopted: by setting the outer diameter value of the feeding pipe 7 to be equal to the outer diameter value of the connecting pipe 1 8, and setting the outer diameter value of the connecting pipe 2 9 to be equal to the outer diameter value of the discharge pipe 10, the loading or conveying of materials will be smoother.

[0035] like Figure 5 As shown, the outer diameter of the spiral blade 15 is equal to the inner diameter of the feed pipe 12, and the feed pipe 12 is made entirely of stainless steel;

[0036] The above solution is adopted: by setting the outer diameter value of the spiral blade 15 and the inner diameter value of the feeding pipe 12 to be equal in size, so that overflow will not occur during the feeding process, the feeding pipe 12 is made entirely of stainless steel, which has high strength and good rust resistance.

[0037] The working principle and use process of this utility model:

[0038] During use, the material is poured in from the top of the feeding pipe 7 and enters the interior of the shell 5 along the connecting pipe 1 8. Then the staff starts the drive motor 11 through the external switch. The power generated by the drive motor 11 rotates the shell 5. After the shell 5 rotates one circle, the connecting pipe 2 9 coincides with the discharge pipe 10. At this time, the material falls through the discharge pipe 10 into the interior of the conveying pipe 12, thereby intermittently discharging the material.

[0039] When the material inside the discharge pipe 10 enters the inside of the conveying pipe 12, the staff starts the servo motor 16 through the external switch. The power generated by the servo motor 16 causes the movable rod 14 to rotate. The rotation of the movable rod 14 causes the spiral blade 15 to rotate synchronously. The material is drawn in through the gap between the spiral blades 15 and continuously transported to the top of the discharge pipe 13, and then falls through the discharge pipe 13 to the inside of the feed hopper 3 for operation.

[0040] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic feeding device for a cold feed extruder, comprising a base (1), characterized in that: A cold feed extruder body (2) is provided on the top of the base (1), a feed hopper (3) is fixedly installed on the surface of the cold feed extruder body (2), a bracket (4) is fixedly installed on the top of the base (1), an outer shell (5) is fixedly installed on the top of the bracket (4), an inner shell (6) is movably installed inside the outer shell (5), a feeding pipe (7) is fixedly installed on the top of the outer shell (5), a discharge pipe (10) is fixedly installed on the bottom of the outer shell (5), a connecting pipe 1 (8) is fixedly installed inside the top end of the inner shell (6), a connecting pipe 2 (9) is fixedly installed inside the bottom end of the inner shell (6), a driving motor (11) is fixedly installed on the top of the outer shell (5), and the output shaft of the driving motor (11) is fixedly connected to the top of the inner shell (6).

2. The automatic loading device for cold feed extruder according to claim 1, characterized in that: A feeding pipe (12) is fixedly mounted on the bottom of the discharge pipe (10), a movable rod (14) is movably mounted inside the feeding pipe (12), a spiral blade (15) is fixedly mounted on the surface of the movable rod (14), a feeding pipe (13) is fixedly mounted on the bottom of the feeding pipe (12), a servo motor (16) is fixedly mounted on the side of the feeding pipe (12), and an output shaft of the servo motor (16) is fixedly connected to one end of the movable rod (14).

3. The automatic loading device for cold feed extruder according to claim 1, characterized in that: Universal wheels (21) are movably mounted on the bottom of the base (1), and there are four sets of universal wheels (21) that are evenly distributed on the bottom of the base (1).

4. The automatic loading device for cold feed extruder according to claim 2, characterized in that: A motor protection cover (17) is provided on the side of the conveying pipe (12), and the servo motor (16) is located inside the motor protection cover (17). A heat dissipation hole (18) is provided on the surface of the motor protection cover (17).

5. The automatic loading device for cold feed extruder according to claim 1, characterized in that: A circular groove (19) is provided at the inner bottom end of the outer shell (5), and a circular plate (20) is movably installed inside the circular groove (19), and the circular plate (20) is fixedly connected to the bottom of the inner shell (6).

6. The automatic loading device for cold feed extruder according to claim 1, characterized in that: The outer diameter of the feeding pipe (7) is equal to the outer diameter of the connecting pipe 1 (8), and the outer diameter of the connecting pipe 2 (9) is equal to the outer diameter of the discharging pipe (10).

7. The automatic loading device for cold feed extruder according to claim 2, characterized in that: The outer diameter of the spiral blade (15) is equal to the inner diameter of the delivery pipe (12), and the delivery pipe (12) is entirely made of stainless steel.

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