Weighing platform of weightlessness scale for feeding of extruder

Abstract

The utility model relates to the technical field of extruders, and discloses a weightlessness scale weighing platform for feeding of an extruder, which comprises an extruder body, a weightlessness scale body is arranged at a feeding position at the upper end of the extruder body, a stirring motor is arranged at the upper end of the weightlessness scale body, and a rotating shaft is arranged at a driving end at the lower end of the stirring motor. And a supporting rod is arranged at the outer end of the rotating shaft. According to the weightlessness scale weighing platform for feeding of the extruder, in the feeding process, when materials with high viscidity need to be fed, the stirring motor can be started, the rotating shaft is driven to rotate through the stirring motor, the rotating shaft can drive the scraping plate to rotate when rotating, and therefore the materials attached to the inner wall of the weightlessness scale are scraped off through the scraping plate; the problems that materials are attached to influence discharging and are difficult to clean are solved, the crushing cutters are synchronously driven to rotate when the rotating shaft rotates, caked materials are crushed through the crushing cutters, large materials are prevented from blocking a discharging pipeline, the materials are fed more smoothly, and the practicability of the weightlessness scale weighing platform for feeding of the extruder is improved.

Description

Technical Field

[0001] This utility model relates to the field of extruder technology, specifically to a loss-in-weight weighing platform for extruder feeding. Background Technology

[0002] Existing extruders typically require material to be poured into a hopper, then flow down through the hopper into a hopper containing a screw conveyor for extrusion. The extruded material then continues to be output as a cylindrical material through the screw conveyor from the discharge port. The cylindrical material is then cut into segments, and finally, the segments are packaged.

[0003] A loss-in-weight scale is a precision weighing device that allows for intermittent feeding and continuous discharge. Utilizing a high-precision weighing scale and PLC control system, it enables accurate measurement of materials. It is suitable for measuring and conveying materials in powder, granular, and liquid forms. In extruders, loss-in-weight scales are typically used for precise material feeding to control the material's entry. However, some existing loss-in-weight scales suffer from issues where highly viscous materials adhere to the inner wall, affecting the discharge process and potentially causing material agglomeration, thus reducing their effectiveness. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] The purpose of this utility model is to provide a loss-in-weight weighing platform for extruder feeding, so as to solve the problems mentioned in the background art, such as some highly viscous materials adhering to the inner wall of the loss-in-weight weighing platform, affecting the feeding, and the materials may clump together, reducing the effectiveness of use.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a loss-in-weight weighing platform for extruder feeding, comprising an extruder body, a loss-in-weight weighing body disposed at the feed port at the upper end of the extruder body, a stirring motor disposed at the upper end of the loss-in-weight weighing body, a rotating shaft disposed at the drive end of the stirring motor, a support rod disposed at the outer end of the rotating shaft, a scraper disposed at the end of the support rod away from the rotating shaft, the scraper abutting against the inner wall of the loss-in-weight weighing body, and a plurality of crushing blades disposed between the support rods.

[0008] Preferably, a temperature sensor is installed inside the weightless scale body, and an audible and visual alarm is installed at the upper end of the weightless scale body. The audible and visual alarm is electrically connected to the temperature sensor. The temperature sensor can detect the internal temperature of the weightless scale body, and when the temperature is too high, it will send a signal to trigger the audible and visual alarm.

[0009] Preferably, a cooling water tank is provided on one side of the weightless scale body, and a circulation pump is provided at the upper end of the cooling water tank, and the interior of the cooling water tank is convenient for storing cooling water.

[0010] Preferably, the inner wall of the loss-in-weight scale body is provided with a circulating cooling pipe, and the water inlet end of the circulating cooling pipe is provided with a water inlet pipe. Through the setting of the circulating cooling pipe, the internal temperature of the loss-in-weight scale body can be carried away by the circulation of cooling water, so as to cool it down quickly.

[0011] Preferably, the return end of the circulating cooling pipe is provided with a return water pipe, and both the inlet pipe and the return water pipe are connected to the cooling water tank through a circulating pump.

[0012] Preferably, a liquid level observation strip is provided at the outer end of the cooling water tank, and a liquid filling pipe is provided at the upper end of the cooling water tank. The liquid filling pipe facilitates the addition of cooling water to the cooling water tank, and the liquid level observation strip facilitates the observation of the liquid level inside the cooling water tank, preventing over- or under-addition.

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

[0014] 1. This loss-in-weight weighing platform for extruder feeding can start the stirring motor when feeding highly viscous materials. The stirring motor drives the rotating shaft to rotate, which in turn drives the scraper to rotate. The scraper scrapes off the material adhering to the inner wall of the loss-in-weight weighing platform, avoiding the problem of material adhering and affecting the feeding process and being difficult to clean. At the same time, the rotating shaft drives the crushing blade to rotate, which breaks up the lumps of material and prevents large pieces of material from clogging the feeding pipe. This makes the material feeding process smoother and improves the practicality of the loss-in-weight weighing platform for extruder feeding.

[0015] 2. This loss-in-weight weighing platform for extruder feeding first connects the inlet and outlet water pipes to the circulating pump and circulating cooling pipe in sequence during feeding. Then, a temperature sensor detects the internal temperature of the loss-in-weight weighing platform. When the temperature is too high, a signal is emitted to trigger an audible and visual alarm, thus reminding the operator to start the circulating pump. The circulating pump draws out the cooling water from the cooling water tank. Through the circulating cooling pipe, the internal temperature of the loss-in-weight weighing platform is carried away by the circulating cooling water, allowing it to cool down quickly and preventing the high temperature from melting some materials with low melting points. This improves the performance of the loss-in-weight weighing platform for extruder feeding. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the loss-of-weight scale of this utility model;

[0018] Figure 3This is a schematic diagram of the inner wall structure of the loss-of-gravity scale of this utility model;

[0019] Figure 4 This is a schematic diagram of the stirring motor and rotating shaft structure of this utility model.

[0020] In the diagram: 1. Extruder body; 2. Loss-in-weight weigher body; 3. Agitator motor; 4. Rotary shaft; 5. Support rod; 6. Scraper; 7. Crusher blade; 8. Temperature sensor; 9. Audible and visual alarm; 10. Cooling water tank; 11. Circulating pump; 12. Circulating cooling pipe; 13. Inlet pipe; 14. Return pipe; 15. Liquid level observation bar; 16. Liquid filling pipe. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-4 This utility model provides a technical solution:

[0023] A loss-in-weight weighing platform for extruder feeding includes an extruder body 1, a loss-in-weight weighing body 2 is provided at the feed port at the upper end of the extruder body 1, a stirring motor 3 is provided at the upper end of the loss-in-weight weighing body 2, a rotating shaft 4 is provided at the drive end of the stirring motor 3, a support rod 5 is provided at the outer end of the rotating shaft 4, a scraper 6 is provided at the end of the support rod 5 away from the rotating shaft 4, the scraper 6 abuts against the inner wall of the loss-in-weight weighing body 2, and a plurality of crushing blades 7 are provided between the support rods 5.

[0024] In this embodiment, a temperature sensor 8 is preferably installed inside the body 2 of the loss-in-weight scale, and an audible and visual alarm 9 is installed at the upper end of the body 2 of the loss-in-weight scale. The audible and visual alarm 9 is electrically connected to the temperature sensor 8. The temperature sensor 8 can detect the temperature inside the body 2 of the loss-in-weight scale, and when the temperature is too high, it will send a signal to trigger the audible and visual alarm 9.

[0025] In this embodiment, a cooling water tank 10 is preferably provided on one side of the weightless scale body 2, and a circulation pump 11 is provided at the upper end of the cooling water tank 10. The cooling water tank 10 is convenient for storing cooling water.

[0026] In this embodiment, the inner wall of the loss-in-weight scale body 2 is preferably provided with a circulating cooling pipe 12, and the water inlet end of the circulating cooling pipe 12 is provided with a water inlet pipe 13. Through the arrangement of the circulating cooling pipe 12, the temperature inside the loss-in-weight scale body 2 can be carried away by the circulation of cooling water, so that it can be cooled down quickly.

[0027] In this embodiment, the return end of the circulating cooling pipe 12 is preferably provided with a return water pipe 14, and both the inlet pipe 13 and the return water pipe 14 are connected to the cooling water tank 10 through the circulating pump 11.

[0028] In this embodiment, the cooling water tank 10 is preferably provided with a liquid level observation strip 15 at its outer end and a liquid filling pipe 16 at its upper end. The liquid filling pipe 16 facilitates the addition of cooling water to the cooling water tank 10, and the liquid level observation strip 15 facilitates the observation of the liquid level inside the cooling water tank 10, preventing over- or under-addition of water.

[0029] In this embodiment, a loss-in-weight weighing platform for extruder feeding is first installed at the feed inlet of the extruder body 1. Then, the addition of cooling water to the cooling water tank 10 is facilitated by the addition pipe 16. The liquid level observation bar 15 allows for easy monitoring of the liquid level inside the cooling water tank 10, preventing over- or under-addition. During feeding, the inlet pipe 13 and return pipe 14 are connected sequentially to the circulating pump 11 and circulating cooling pipe 12. The temperature sensor 8 detects the internal temperature of the loss-in-weight weighing platform 2. When the temperature is too high, a signal is emitted to trigger the audible and visual alarm 9, reminding the operator to start the circulating pump 11. The circulating pump 11 then circulates the cooling water from the tank... The cooling water inside the 10 is extracted and, through the setting of the circulating cooling pipe 12, the temperature inside the loss-in-weight scale can be carried away by the cooling water circulation, so that it can be cooled down quickly and avoid melting some materials with low melting points due to high temperature. When it is necessary to feed materials with high viscosity, the stirring motor 3 can be started. The stirring motor 3 drives the rotating shaft 4 to rotate. When the rotating shaft 4 rotates, it will drive the scraper 6 to rotate, thereby scraping off the material attached to the inner wall of the loss-in-weight scale, avoiding the problem of material adhesion affecting the feeding and being difficult to clean. When the rotating shaft 4 rotates, it will simultaneously drive the crusher 7 to rotate, thereby breaking up the lumps of material, preventing large pieces of material from blocking the feeding pipe, and making the material feeding smoother.

[0030] Finally, it should be noted that the above content is only used to illustrate the technical solution of this utility model, and is not intended to limit the scope of protection of this utility model. Simple modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model do not depart from the essence and scope of the technical solution of this utility model.

Claims

1. A loss-in-weight scale for feeding an extruder, comprising an extruder body (1), characterized in that: The upper end of the extruder body (1) is provided with a loss-in-weight scale body (2), the upper end of the loss-in-weight scale body (2) is provided with a stirring motor (3), the driving end of the lower end of the stirring motor (3) is provided with a rotating shaft (4), the outer end of the rotating shaft (4) is provided with a supporting rod (5), the end of the supporting rod (5) away from the rotating shaft (4) is provided with a scraping plate (6), the scraping plate (6) abuts against the inner wall of the loss-in-weight scale body (2), and a plurality of crushing knives (7) are arranged between the supporting rods (5).

2. A loss-in-weight hopper for an extruder as claimed in claim 1, characterized in that: The inside of the loss-in-weight scale body (2) is provided with a temperature measuring sensor (8), the upper end of the loss-in-weight scale body (2) is provided with an audible and visual alarm (9), and the audible and visual alarm (9) and the temperature measuring sensor (8) are electrically connected.

3. A loss-in-weight hopper for an extruder as claimed in claim 2, characterized in that: One side of the loss-in-weight scale body (2) is provided with a cooling water tank (10), and the upper end of the cooling water tank (10) is provided with a circulating pump (11).

4. A loss-in-weight hopper for an extruder as claimed in claim 3, characterized in that: The inner wall of the loss-in-weight scale body (2) is provided with a circulating cooling pipe (12), and the water inlet end of the circulating cooling pipe (12) is provided with a water inlet pipe (13).

5. A loss-in-weight hopper for an extruder as claimed in claim 4, wherein: The water outlet end of the circulating cooling pipe (12) is provided with a water outlet pipe (14), and the water inlet pipe (13) and the water outlet pipe (14) are connected with the cooling water tank (10) through the circulating pump (11).

6. A loss-in-weight hopper for an extruder as claimed in claim 5, characterized in that: The outer end of the cooling water tank (10) is provided with a liquid level observation strip (15), and the upper end of the cooling water tank (10) is provided with a liquid adding pipe (16).

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