Material returning alarm device

Abstract

The utility model discloses a material returning alarm device which comprises a barrel, an exhaust chamber and an alarm unit, the barrel is used for containing materials, an exhaust hole is formed in the barrel, and the exhaust hole is communicated with the exhaust chamber so that water and small molecular substances mixed in the materials can flow to the exhaust chamber through the exhaust hole; the alarm unit comprises an induction device and an alarm, the induction device is arranged in the exhaust chamber, located above the exhaust hole and used for detecting the material returning state of materials returning to the exhaust chamber through the exhaust hole in real time, and when the induction device detects that the material returning state is material returning, the alarm is triggered to give an alarm; and the vacuum equipment communicated with the exhaust chamber through the vacuum pipeline is controlled to stop running, so that an operator can timely perform cleaning after receiving an alarm, further pipeline blockage caused by continuous returning of materials is avoided, equipment damage is avoided, and vacuum effectiveness of the equipment is ensured, thereby ensuring the product quality, reducing the labor intensity of workers and the production cost, and improving the production efficiency. And the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of extruder equipment, in particular to a material return alarm device. Background Art

[0002] During the extrusion process of the polymer by the extruder, the material will contain moisture and small molecules. If these substances are not discharged in time, pores will be generated in the product. The existence of pores will cause gas marks on the injection molded parts in the subsequent injection molding process, and will also increase the odor of the finished product, seriously affecting the product quality. In order to ensure product quality, vacuum equipment is usually used to extract moisture and small molecules from the material. In this process, the material in the extruder barrel will return along with the moisture and small molecules through the barrel exhaust hole into the vacuum chamber, thereby causing the exhaust hole to be blocked.

[0003] In the prior art, the instrument indication of the negative pressure device is usually relied on to judge whether the vacuum system is working properly. However, this method has obvious limitations. When the exhaust hole of the cylinder is blocked, the entire system may form a false vacuum state. In the false vacuum state, although the data on the vacuum pressure gauge seems to meet the set requirements, in fact, the vacuum system does not effectively remove moisture and small molecules in the material. This false vacuum state will cause pores to appear in the finished material particles, or reduce the grade of the product that should have reached the low odor standard. The pores and odor problems not only affect the market competitiveness of the product, but also bring additional production costs and manpower burdens; when pores appear, the product needs to be mixed and extruded again, which not only increases the production cost, but also increases the labor intensity of workers in packaging and mixing; similarly, products with unqualified odor need to be re-baked or the baking time is increased, which not only increases the production cost, but also increases the workers' baking workload, further increasing the workers' labor intensity; more seriously, if the return material cannot be discovered and cleaned in time, it will cause the material to continue to accumulate in the vacuum pipeline and even damage the production equipment. In this case, it is necessary to stop the machine for cleaning, which not only increases the labor intensity of employees and reduces work efficiency, but also further increases the manufacturing cost of the product. Utility Model Content

[0004] In order to solve the above technical problems, the present application provides a material return alarm device to at least solve or alleviate the problems existing in the above prior art.

[0005] In order to achieve the above-mentioned purpose, a material return alarm device is provided, comprising: a cylinder 11, an exhaust chamber 21 and an alarm unit 3, wherein the cylinder 11 is used to contain materials, and is provided with an exhaust hole 12, and the exhaust hole 12 is connected to the exhaust chamber 21, so that the moisture mixed in the material and the small molecular substances produced by the degradation of the material at a higher processing temperature can flow to the exhaust chamber 21 through the exhaust hole 12; the alarm unit 3 comprises: a sensing device 31 and an alarm 32, wherein the sensing device 31 is arranged in the exhaust chamber 21 and is located above the exhaust hole 12, and is used for real-time detection of the material return state of the material returning to the exhaust chamber 21 through the exhaust hole 12, and when the sensing device 31 detects that the material return state is material return, the alarm 32 is triggered to sound an alarm.

[0006] Optionally, the sensing device 31 is a touch sensor. When the material is returned to the exhaust chamber 21 through the exhaust hole 12 and touches the touch sensor, the touch sensor triggers the alarm 32 to sound an alarm.

[0007] Optionally, the alarm 32 is a buzzer alarm.

[0008] Optionally, it also includes: a vacuum pumping device 41, which is connected to the exhaust chamber 21 through a vacuum pipe 25 to form a gas flow channel. The vacuum pumping device 41 is connected to the cylinder 11 through the gas flow channel, and uses the negative pressure principle to vacuum the inside of the cylinder 11.

[0009] Optionally, the vacuuming device 41 is electrically connected to the sensing device 31, and when the sensing device 31 detects that the material return state is material return, the vacuuming device 41 is controlled to stop working.

[0010] Optionally, the vacuum extraction device 41 is a vacuum pump.

[0011] Optionally, it also includes: a vacuum tank 51, wherein the side wall of the vacuum tank 51 is provided with an air inlet 52 and an air outlet 53, wherein the air inlet 52 is connected to the vacuum pipeline 25, and the air outlet 53 is connected to the vacuum pump, and the moisture and small molecules extracted by the vacuum pump when working enter the vacuum tank through the vacuum pipeline 25 via the air inlet 52, and flow out of the vacuum tank from the air outlet 53 and enter the vacuum pump.

[0012] Optionally, a vacuum gauge 24 is provided on the exhaust chamber 21 to display the vacuum state in the exhaust chamber 21 .

[0013] Optionally, a discharge port 22 is provided on the exhaust chamber 21, and a cover plate 23 is detachably mounted on the discharge port 22. When the cover plate 23 is in an open state, an open space connected to the inside of the exhaust chamber 21 and the external environment is formed to clean the materials returned into the exhaust chamber 21.

[0014] Optionally, it further includes: a bracket 13, wherein the bracket 13 is used to support the cylinder 11, and the alarm 32 is installed on the bracket 13.

[0015] Through this application, the return material alarm device can timely and effectively detect and alarm the return material situation in the production process, and control the vacuum equipment to stop running. The operator can intervene in time to clean up after receiving the alarm, so as to avoid the continued return of materials and further blockage of the pipeline, avoid equipment damage, ensure the effectiveness of the equipment vacuum, thereby ensuring product quality, reducing the labor intensity and production costs of workers, and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The schematic embodiment drawings and their descriptions of this application are used to explain this application and do not constitute an improper limitation on this application. In the drawings:

[0017] Figure 1 This is a structural schematic diagram of a material return alarm device according to an embodiment of the present application;

[0018] Among them, the numbers in the figure indicate: 11, cylinder; 12, exhaust hole; 13, bracket; 21, exhaust chamber; 22, discharge port; 23, cover plate; 24, vacuum gauge; 3, alarm unit; 31, sensing device; 32, alarm; 41, vacuum equipment; 51, vacuum tank; 52, air inlet; 53, air outlet; 25, vacuum pipeline. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the solution of the present application, the following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of this application.

[0020] It should be noted that the term "including" in the specification and claims of this application and the above-mentioned drawings is intended to cover non-exclusive inclusions. In this application, the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", etc. is based on the orientation or positional relationship shown in the drawings. These terms are mainly for better describing the present application and its embodiments, and are not used to limit the indicated components to have specific orientations. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to the specific circumstances.

[0021] Figure 1 Schematic diagram of a material return alarm device according to an embodiment of the present application; Figure 1 As shown, a material return alarm device is provided, comprising: a cylinder 11, an exhaust chamber 21 and an alarm unit 3, wherein the cylinder 11 is used to contain materials, and is provided with an exhaust hole 12, and the exhaust hole 12 is communicated with the exhaust chamber 21, so that the moisture and small molecules mixed in the material can flow to the exhaust chamber 21 through the exhaust hole 12; the alarm unit 3 comprises: a sensing device 31 and an alarm 32, wherein the sensing device 31 is arranged in the exhaust chamber 21 and is located above the exhaust hole 12, and is used for real-time detection of the material return state of the material returning to the exhaust chamber 21 through the exhaust hole 12, and when the sensing device 31 detects that the material return state is material return, the alarm 32 is triggered to sound an alarm.

[0022] For this reason, since the material will degrade to produce small molecules under the high processing temperature in the barrel 11, these small molecules and the moisture contained in the material will be discharged through the exhaust hole 12 on the barrel 11, and the material will also be discharged together. The sensing device 31 can detect in real time whether the material is returned to the exhaust chamber 21 through the exhaust hole 12, ensuring that the material can be detected when it is returned. The alarm device can quickly trigger the alarm 32 to sound an alarm when sensing the material return. This timely alarm mechanism can remind the operator to intervene in time and take corresponding measures to deal with it. This can not only prevent the material return from further deterioration, but also ensure the continuity and stability of the production process, thereby improving production efficiency.

[0023] Optionally, the sensing device 31 is a touch sensor. When the material is returned to the exhaust chamber 21 through the exhaust hole 12 and touches the touch sensor, the touch sensor triggers the alarm 32 to sound an alarm.

[0024] This design is due to the extremely high sensitivity and accuracy of the touch sensor. When the material is returned to the exhaust chamber 21 through the exhaust hole 12 and touches the touch sensor, the sensor can respond quickly and trigger the alarm 32 to sound an alarm. This instant response capability helps to ensure the timely discovery and handling of the return material situation, thereby effectively avoiding potential production risks. In addition, the touch sensor has a strong anti-interference ability. In the production environment, there may be various interference factors, such as vibration, dust, etc. The touch sensor can still maintain stable performance under various interference factors to ensure accurate detection of the material return status; in addition, the touch sensor also has a long service life and low maintenance cost. Due to its simple structure and high reliability, it is not easy to fail, which reduces the frequency of maintenance and replacement and reduces the cost of use.

[0025] Optionally, the alarm 32 is a buzzer alarm.

[0026] This design is due to the characteristics of the buzzer alarm having a loud sound and a long transmission distance. When the sensing device 31 detects the return of materials and triggers the alarm 32, the buzzer alarm can emit a loud sound to ensure that it can be clearly heard by the operator even in a noisy production environment. This helps the operator to quickly locate and respond to the alarm and take corresponding measures to deal with the return of materials in a timely manner; and the buzzer alarm has a fast response speed and can emit a sound at the moment the sensing device 31 triggers the alarm. This immediacy helps to ensure that the operator can get the alarm information in the first time to avoid production losses or equipment damage caused by delays; in addition, the buzzer alarm also has the advantages of simple structure, easy installation, and low maintenance cost. Its working principle is simple and reliable, not prone to failure, reducing the frequency of maintenance and replacement, and reducing the cost of use. At the same time, the installation of the buzzer alarm is relatively simple and can be easily integrated into the return alarm device to improve the stability and reliability of the entire system.

[0027] Optionally, the alarm 32 may also be a warning light or an audible and visual alarm, or any other alarm that can emit sound, light or other forms of signals to prompt the operator.

[0028] Optionally, it also includes: a vacuum pumping device 41, which is connected to the exhaust chamber 21 through a vacuum pipe 25 to form a gas flow channel. The vacuum pumping device 41 is connected to the cylinder 11 through the gas flow channel, and uses the negative pressure principle to vacuum the inside of the cylinder 11.

[0029] In this design, the vacuum equipment 41 and the exhaust chamber 21 are connected by a vacuum pipe 25, so that the whole system forms a closed gas flow channel, which not only enhances the sealing and stability of the system, but also ensures the smoothness and efficiency of the gas flow. In addition, the negative pressure principle of the vacuum equipment 41 forms a certain vacuum degree inside the cylinder 11, which helps to more thoroughly remove moisture and small molecules in the material. These substances enter the exhaust chamber 21 through the exhaust hole 12, and are further discharged by the vacuum equipment 41 through the vacuum pipe 25, thereby ensuring the quality of the product.

[0030] Optionally, the vacuuming device 41 is electrically connected to the sensing device 31, and when the sensing device 31 detects that the material return state is material return, the vacuuming device 41 is controlled to stop working.

[0031] With this design, when the sensing device 31 detects material return, the vacuum equipment 41 is controlled to stop working immediately, thereby avoiding further material return or equipment damage. In addition, this design also improves the automation and intelligence level of the production process. Through the electrical connection between the sensing device 31 and the vacuum equipment 41, automatic detection and response to material return is achieved. The operator does not need to pay attention to the production process all the time, but only needs to intervene when the alarm sounds, which reduces work intensity and improves production efficiency.

[0032] Optionally, the vacuum extraction device 41 is a vacuum pump.

[0033] With this design, since the vacuum pump has an efficient gas extraction capability, it can quickly extract the moisture and small molecules inside the cylinder 11, creating a low-pressure environment for material processing, thereby improving product quality and stability. In addition, the vacuum pump has high stability and reliability. Its structural design and working principle enable it to maintain stable performance under long-term continuous operation, is not prone to failure, and can ensure the continuity and stability of production. In addition, the vacuum pump also has high precision and controllability. Through precise adjustment and control, precise control of the vacuum degree inside the cylinder 11 can be achieved to meet the needs of different material processing and can adapt to a variety of different production scenarios and process requirements. Moreover, as a mature industrial equipment, the vacuum pump has relatively mature technology, and there are also a variety of models and specifications available on the market, which allows companies to choose suitable vacuum pumps according to their own needs and budgets to achieve cost-effective optimization.

[0034] Optionally, it also includes: a vacuum tank 51, wherein the side wall of the vacuum tank 51 is provided with an air inlet 52 and an air outlet 53, wherein the air inlet 52 is connected to the vacuum pipeline 25, and the air outlet 53 is connected to the vacuum pump, and the moisture and small molecules extracted by the vacuum pump when working enter the vacuum tank through the vacuum pipeline 25 via the air inlet 52, and flow out of the vacuum tank from the air outlet 53 and enter the vacuum pump.

[0035] This design uses a vacuum tank 51 as an intermediate buffer device, which can effectively and smoothly regulate the flow of gas. The air inlet 52 is connected to the vacuum pipeline 25, so that the gas in the cylinder 11 can smoothly enter the vacuum tank 51, and the air outlet 53 is connected to the vacuum pump, ensuring that the gas can be stably extracted and discharged from the system. Secondly, the vacuum tank 51 can temporarily store a certain amount of gas, which plays a role of buffering and storage. During the production process, there may be certain fluctuations or unstable factors in the gas flow. Through the temporary storage function of the vacuum tank 51, these fluctuations can be balanced to make the gas flow more stable and continuous. This helps to reduce the adverse effects on material processing caused by unstable gas flow and improves the controllability and stability of the production process. In addition, the introduction of the vacuum tank 51 can also facilitate the maintenance and overhaul of the system. When the vacuum pump needs to be cleaned, repaired or replaced, the connection between the vacuum pump and the vacuum tank 51 can be closed without affecting the vacuum environment inside the cylinder 11. This improves the flexibility and maintainability of the system and reduces maintenance costs and time.

[0036] Optionally, a vacuum gauge 24 is provided on the exhaust chamber 21 to display the vacuum state in the exhaust chamber 21 .

[0037] This design uses a vacuum gauge 24 to display the vacuum status in the exhaust chamber 21 in real time and intuitively, providing important reference information for operators. By observing the readings of the vacuum gauge 24, operators can quickly understand the vacuum level of the current system, thereby determining whether it is necessary to adjust the working status of the vacuum pump or take other measures. In addition, the setting of the vacuum gauge 24 helps to improve the controllability and stability of the production process. By monitoring the vacuum status, operators can promptly discover and resolve potential problems that may affect the vacuum level, such as air leaks. This helps to ensure that the inside of the cylinder 11 always maintains an appropriate vacuum environment, providing stable and reliable conditions for material processing.

[0038] Optionally, a discharge port 22 is provided on the exhaust chamber 21, and a cover plate 23 is detachably mounted on the discharge port 22. When the cover plate 23 is in an open state, an open space connected to the inside of the exhaust chamber 21 and the external environment is formed to clean the materials returned into the exhaust chamber 21.

[0039] This design facilitates the cleaning of the materials in the exhaust chamber 21. When the sensing device 31 detects the return of materials and triggers an alarm, the operator can open the cover plate 23 on the discharge port 22 to form an open space connected to the inside of the exhaust chamber 21 and the external environment. The materials returned to the exhaust chamber 21 can be easily cleaned out, avoiding the accumulation and blockage of materials in the exhaust chamber 21, and ensuring the patency and normal function of the exhaust chamber 21. In addition, the detachable cover plate 23 design makes the cleaning process more flexible and convenient. The cover plate 23 can be opened or closed quickly, and the operation is simple and convenient. After cleaning the materials, the cover plate 23 can be quickly reinstalled to restore the sealing of the exhaust chamber 21 and ensure the normal operation of the system. In addition, by regularly checking and cleaning the materials in the exhaust chamber 21, the impact of material accumulation on the equipment and products can be reduced, and the product quality can be improved. Furthermore, this design also reflects the modularity and maintainability of the return alarm device. Through simple disassembly and installation operations, the exhaust chamber 21 can be easily maintained, repaired, and parts replaced, reducing the maintenance cost and time cost of the equipment.

[0040] Optionally, it further includes: a bracket 13, wherein the bracket 13 is used to support the cylinder 11, and the alarm 32 is installed on the bracket 13.

[0041] This design uses a bracket 13 to provide a stable and reliable support for the cylinder 11. During the production process, the cylinder 11 and its internal materials may be subjected to various forces, such as gravity, vibration, etc. The support of the bracket 13 can ensure that the cylinder 11 maintains a stable posture and avoids tilting, shaking or deformation, thereby protecting the safety and integrity of the cylinder 11 and its internal materials. In addition, the alarm 32 is installed on the bracket 13, so that the position of the alarm 32 is more fixed and stable, ensuring the normal function of the alarm function. At the same time, the design of the bracket 13 can also take into account the best viewing angle of the alarm 32 and the convenience of conveying the alarm signal, so that the operator can clearly see or hear the alarm indication of the alarm 32 and respond quickly.

[0042] Optionally, a sealing gasket is provided between the exhaust chamber 21 and the cylinder 11 , and a shape of the sealing gasket matches a contact surface between the exhaust chamber 21 and the cylinder 11 .

[0043] The use of a sealing gasket design ensures the tightness and sealing of the connection between the exhaust chamber 21 and the barrel 11, effectively preventing gas from leaking from the connection between the exhaust chamber 21 and the barrel 11, which would affect the normal operation of the system. In addition, the matching shape of the sealing gasket can ensure that it is completely in contact with the contact surface of the exhaust chamber 21 and the barrel 11, thereby enhancing the sealing effect while enhancing the stability and durability of the structure. In addition, the introduction of the sealing gasket also helps to reduce noise and vibration. Since the connection between the exhaust chamber 21 and the barrel 11 is tighter, the generation of noise and vibration is reduced, and the risk of equipment failure is also reduced.

[0044] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A material return alarm device, It is characterized in that include: A cylinder (11), an exhaust chamber (21), and an alarm unit (3), wherein the cylinder (11) is used to contain materials and is provided with an exhaust hole (12), wherein the exhaust hole (12) is connected to the exhaust chamber (21), so that water and small molecules mixed in the materials flow into the exhaust chamber (21) through the exhaust hole (12); The alarm unit (3) comprises: a sensing device (31) and an alarm (32); the sensing device (31) is arranged in the exhaust chamber (21) and located above the exhaust hole (12) to detect in real time the material return state of the material returning to the exhaust chamber (21) through the exhaust hole (12); when the sensing device (31) detects that the material return state is material return, the alarm (32) is triggered to sound an alarm.

2. A material return alarm device according to claim 1, It is characterized in that The sensing device (31) uses a touch sensor, and when the material returns to the exhaust chamber (21) through the exhaust hole (12) and touches the touch sensor, the touch sensor triggers the alarm (32) to sound an alarm.

3. A material return alarm device according to claim 1, It is characterized in that The alarm (32) is a buzzer alarm.

4. A material return alarm device according to claim 1, It is characterized in that Also includes: A vacuum pumping device (41), wherein the vacuum pumping device (41) is connected to the exhaust chamber (21) via a vacuum pipeline (25) to form a gas flow channel, and the vacuum pumping device (41) is connected to the cylinder (11) via the gas flow channel, and utilizes the negative pressure principle to perform vacuum extraction on the interior of the cylinder (11).

5. A material return alarm device according to claim 4, It is characterized in that The vacuum pumping device (41) is electrically connected to the sensing device (31), and when the sensing device (31) detects that the material return state is material return, the vacuum pumping device (41) is controlled to stop working.

6. A material return alarm device according to claim 4, It is characterized in that The vacuum extraction device (41) is a vacuum pump.

7. A material return alarm device according to claim 6, It is characterized in that Also includes: A vacuum tank (51), wherein a side wall of the vacuum tank (51) is provided with an air inlet (52) and an air outlet (53), wherein the air inlet (52) is in communication with the vacuum pipeline (25), and the air outlet (53) is in communication with the vacuum pump, and when the vacuum pump is in operation, the moisture and small molecule substances extracted enter the vacuum tank through the vacuum pipeline (25) via the air inlet (52), and flow out of the vacuum tank from the air outlet (53) and enter the vacuum pump.

8. A material return alarm device according to claim 1, It is characterized in that The exhaust chamber (21) is provided with a vacuum gauge (24) for displaying the vacuum state in the exhaust chamber (21).

9. A material return alarm device according to claim 1, It is characterized in that The exhaust chamber (21) is provided with a discharge port (22), and a cover plate (23) is detachably mounted on the discharge port (22). When the cover plate (23) is in an open state, an open space communicating with the outside environment is formed inside the exhaust chamber (21) to clean the materials returned to the exhaust chamber (21).

10. A material return alarm device according to claim 1, It is characterized in that Also includes: A bracket (13), the bracket (13) being used to support the cylinder (11), and the alarm (32) being mounted on the bracket (13).

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