An online alarm device for cutter replacement of an underwater pelletizer

Abstract

The utility model relates to alarm device technical field provides an online tool changing alarm device of underwater pelletizer, including connecting plate, the one side of connecting plate evenly fixed has adjustable mounting structure, the adjustable mounting structure includes the connecting clamping seat evenly fixed in the one side of connecting plate. The utility model discloses adjustable mounting structure is provided with, through the connecting shaft and the clamping plate of symmetrical distribution, can firmly and accurately install the device on the pelletizer support of different size or specification, and the adaptability is strong, and symmetrical design makes stress even, prevents loose under high -speed vibration environment, ensures the reliability of sensor acquisition data, through the rotation handle can complete installation and disassembly, need not special tool, has improved the convenience of on -the -spot operation greatly, has realized the function that the device has the installation and disassembly of device conveniently, has improved the convenience of this online tool changing alarm device of underwater pelletizer when using.

Description

Technical Field

[0001] This utility model relates to the field of alarm device technology, and in particular to an online blade change alarm device for an underwater pelletizer. Background Technology

[0002] Underwater pelletizers are core equipment in the chemical and plastics industries, and their continuous and stable operation is crucial to production efficiency. As a key consumable component, the cutter blade wears out, leading to decreased pellet quality, defective products, and even unplanned downtime, causing significant economic losses. To reduce downtime, online blade replacement technology has been applied, but determining "when to replace the blade" remains a challenge. Currently, this relies mainly on operator experience, which is inherently lagging and subjective, making precise operation at the optimal time impossible. This results in wasted blade life or the production of defective products. Therefore, it is necessary to design an online blade replacement alarm device for underwater pelletizers.

[0003] To address this issue, patent CN201616172U discloses an abnormality alarm device. This device comprises a detection module, a processing module, and an alarm module. The detection module includes a probe, and the alarm module includes an alarm unit. The probe is located on the electroplating line, and the alarm unit is located in the electrical control room. The abnormality alarm device includes a blower abnormality alarm, a temperature abnormality alarm, and a plate drop abnormality alarm. This invention overcomes the problem in the prior art where numerous abnormalities occur on the electroplating line without timely detection, leading to large-scale product scrapping or rework and significant economic losses. By installing blower abnormality alarm, temperature abnormality alarm, and plate drop abnormality alarm on the electroplating line, this invention can reduce the probability of product scrapping and significantly save production costs for enterprises.

[0004] While the aforementioned alarm device can reduce the scrap rate of products during use, it is inconvenient to quickly disassemble and reassemble the alarm device after installation. Therefore, it is necessary to design an online blade change alarm device for underwater pelletizers. Utility Model Content

[0005] The purpose of this invention is to provide an online blade change alarm device for underwater pelletizers, which solves the problem that existing online blade change alarm devices for underwater pelletizers are inconvenient to disassemble and reassemble after installation.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an online blade change alarm device for an underwater pelletizer, including a connecting plate;

[0007] An adjustable mounting structure is uniformly fixed on one side of the connecting plate. The adjustable mounting structure includes a connecting bracket uniformly fixed on one side of the connecting plate. Both sides of the connecting bracket are threaded with connecting shafts. One end of the connecting shaft extends to the outside of the connecting bracket and is fixed with a rotating handle. The other end of the connecting shaft extends to the inside of the connecting bracket and is rotatably connected with a clamping plate.

[0008] A detection structure is fixed on the side of the connecting plate away from the adjustable mounting structure. A camera is fixed on the outer wall of the connecting plate below the detection structure. LED lights are fixed on the outer walls of both sides of the bottom of the connecting plate.

[0009] A sealing structure is fixed on the outer wall of the camera's outer connecting plate.

[0010] Furthermore, the connecting brackets are symmetrically distributed on both sides of the connecting plate, and the connecting shafts are symmetrically distributed on both sides of the connecting brackets.

[0011] Furthermore, the sealing structure includes an outer sealing gasket fixed to one edge of the connecting plate. The outer sealing gasket has a hollow groove inside, and a slot is formed on one side of the hollow groove. The sealing structure also includes a circular plate disposed on one side of the slot. Bolts pass through the inner edge of the circular plate. Connecting grooves are evenly formed on the side of the circular plate near the outer sealing gasket. Each connecting groove is interference-fitted with a gasket. An inner sealing gasket is fixed to one side of each gasket. A protective cover is fixed to the outer wall of the circular plate.

[0012] Furthermore, the bolts are evenly distributed inside the circular plate, and one end of each bolt extends into the interior of the connecting plate.

[0013] Furthermore, the inner sealing gasket and the outer sealing gasket are connected by a snap-fit ​​mechanism, and the interior of the inner sealing gasket is hollow.

[0014] Furthermore, the detection structure includes a detection box fixed to one side of the outer wall of the connecting plate, a circuit board fixed inside the detection box, a data processor fixed to one side of the top of the circuit board, a microcontroller disposed below the data processor, and a data memory disposed below the microcontroller.

[0015] Furthermore, the input terminal of the data processor is electrically connected to the output terminal of the camera, and the output terminal of the data processor is electrically connected to the input terminal of the microcontroller.

[0016] Furthermore, the output terminal of the microcontroller and the input terminal of the data storage device are electrically connected.

[0017] Furthermore, the LED lights are symmetrically distributed on both sides of the camera.

[0018] The advantages of the online blade change alarm device for an underwater pelletizer provided by this utility model are as follows:

[0019] With an adjustable installation structure and symmetrically distributed connecting shafts and clamps, the device can be firmly and accurately installed on pelletizer supports of different sizes or specifications, making it highly adaptable. The symmetrical design ensures even force distribution, preventing loosening under high-speed vibration and ensuring the reliability of sensor data acquisition. Installation and disassembly can be completed by rotating the handle without special tools, greatly improving the convenience of on-site operation. This makes the device easy to install and disassemble, enhancing the ease of use of the underwater pelletizer online blade change alarm device.

[0020] By incorporating a sealing structure and using an interference fit between the gasket and the connecting groove, the inner sealing gasket is fixed to one side of the circular plate. The inner sealing gasket and the groove are connected and work together with the outer sealing gasket to form multiple sealing rings, preventing high-pressure water, water vapor, and plastic particles from entering the pelletizing chamber. The hollow inner sealing gasket deforms and fills the gaps under pressure, further improving the sealing effect. The circular plate is fixed with bolts, resulting in a reasonable structure that is easy to install and disassemble, facilitating the replacement of sealing elements later. This design enables the device to be easily sealed, improving the safety of the underwater pelletizer's online blade change alarm device during use.

[0021] By incorporating a detection structure and a camera, the underwater pelletizing process can be continuously captured in real-time video streams or high-definition images. A data processor analyzes and processes the images captured by the camera, using algorithms to determine whether the blades have reached their wear threshold. When abnormalities or shape abnormalities in the pellets are detected, a microcontroller transmits a blade abnormality signal to the back-end terminal, facilitating timely blade replacement by back-end personnel. This device enables convenient blade detection and timely alarm functions, improving the convenience and efficiency of the underwater pelletizer's online blade replacement alarm system. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the front cross-sectional structure of this utility model;

[0024] Figure 3 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0025] Figure 4 This is a three-dimensional structural schematic diagram of the main cross-section of this utility model;

[0026] Figure 5This is a side view cross-sectional three-dimensional structural schematic diagram of the present invention;

[0027] Figure 6 This is a top view cross-sectional structural diagram of the present invention.

[0028] The following are the annotations in the diagram: 1. Connecting plate; 2. Adjustable mounting structure; 21. Connecting bracket; 22. Rotary handle; 23. Connecting shaft; 24. Clamping plate; 3. Sealing structure; 31. Outer sealing gasket; 32. Hollow groove; 33. Slot; 34. Bolt; 35. Round plate; 36. Connecting groove; 37. Gasket; 38. Protective cover; 39. Inner sealing gasket; 4. Detection structure; 41. Detection box; 42. Circuit board; 43. Data processor; 44. Microcontroller; 45. Data storage device; 5. Camera; 6. LED light. Detailed Implementation

[0029] 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.

[0030] Please see Figures 1-6 The present invention provides an online blade change alarm device for an underwater pelletizer, comprising a connecting plate 1.

[0031] Reference Figure 1 , Figure 2 , Figure 5 and Figure 6 An adjustable mounting structure 2 is uniformly fixed on one side of the connecting plate 1. The adjustable mounting structure 2 includes a connecting bracket 21 uniformly fixed on one side of the connecting plate 1. Both sides of the connecting bracket 21 are threadedly connected to a connecting shaft 23. One end of the connecting shaft 23 extends to the outside of the connecting bracket 21 and is fixed with a rotating handle 22. The other end of the connecting shaft 23 extends to the inside of the connecting bracket 21 and is rotatably connected to a clamping plate 24. The connecting brackets 21 are symmetrically distributed on both sides of the connecting plate 1, and the connecting shafts 23 are symmetrically distributed on both sides of the connecting brackets 21.

[0032] The device is placed close to the pelletizer mounting surface via the connecting plate 1. The rotating handles 22 on both sides are rotated to drive the threaded connecting shaft 23 inward. The connecting shaft 23 will drive the rotating clamping plate 24 to press against the mounting surface, achieving bidirectional clamping. Through symmetrical adjustment, the coaxiality and perpendicularity of the device with the pelletizer spindle or cutter disc are ensured, guaranteeing monitoring accuracy.

[0033] Reference Figure 2 and Figures 4-6A detection structure 4 is fixed on the side of the connecting plate 1 away from the adjustable mounting structure 2. The detection structure 4 includes a detection box 41 fixed on the outer wall of one side of the connecting plate 1. A circuit board 42 is fixed inside the detection box 41. A data processor 43 is fixed on one side of the top of the circuit board 42. A microcontroller 44 is arranged below the data processor 43. A data memory 45 is arranged below the microcontroller 44. The input terminal of the data processor 43 is electrically connected to the output terminal of the camera 5. The output terminal of the data processor 43 is electrically connected to the input terminal of the microcontroller 44. The output terminal of the microcontroller 44 is electrically connected to the input terminal of the data memory 45. A camera 5 is fixed on the outer wall of the connecting plate 1 below the detection structure 4. LED lights 6 are fixed on the outer walls of both sides of the bottom of the connecting plate 1. The LED lights 6 are symmetrically distributed on both sides of the camera 5.

[0034] With an external power supply, camera 5 continuously captures real-time video streams or high-definition images of the underwater pelletizing process under the auxiliary illumination of LED lights 6. The LED lights 6 are symmetrically distributed on both sides of camera 5 to ensure uniform and shadowless illumination in the dim underwater environment, overcoming the effects of particle reflection and water scattering on light, and ensuring image clarity. Camera 5 can inspect the pelletized product, and the acquired visual signals are transmitted in real time to data processor 43 via a data cable. The image processing algorithm built into data processor 43 performs intelligent analysis on the received images, automatically identifying and analyzing the shape, length, and uniformity of the particles. When the analysis results clearly indicate a decline in pelletizing quality, data processor 43 determines that the blade wear has reached the critical point and then transmits the signal to microcontroller 44. Microcontroller 44 transmits an alarm signal to the back-end terminal, and the staff can start the online blade replacement system after seeing the alarm signal.

[0035] Reference Figures 1-6 A sealing structure 3 is fixed on the outer wall of the connecting plate 1 on the outer side of the camera 5. The sealing structure 3 includes an outer sealing gasket 31 fixed at one edge of the connecting plate 1. The outer sealing gasket 31 has a hollow groove 32 inside. A slot 33 is opened on one side of the hollow groove 32. The sealing structure 3 also includes a circular plate 35 set on one side of the slot 33. Bolts 34 pass through the inner edge of the circular plate 35. A connecting groove 36 is evenly opened on the side of the circular plate 35 near the outer sealing gasket 31. A gasket 37 is interference-fitted into the inner side of the connecting groove 36. An inner sealing gasket 39 is fixed on one side of the gasket 37. A protective cover 38 is fixed on the outer wall of the circular plate 35. Bolts 34 are evenly distributed inside the circular plate 35. One end of each bolt 34 extends into the inner side of the connecting plate 1. The inner sealing gasket 39 and the outer sealing gasket 31 are connected by the slot 33. The inner sealing gasket 39 is hollow inside.

[0036] The circular plate 35 is fixed to one side of the connecting plate 1 by bolts 34. The protective cover 38 can be fixed to the outside of the detection structure 4, camera 5 and LED light 6 by the circular plate 35 to seal and protect them. The gasket 37 is inserted into the connecting groove 36. When the sealing cover is tightened, the inner sealing gasket 39 is embedded in the groove 33 to form a tight contact. The inner sealing gasket 39 has a hollow design and expands to the surroundings when under pressure, further enhancing the fit of the sealing surface and achieving reliable sealing in dynamic and static environments.

[0037] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An online blade change alarm device for an underwater pelletizer, comprising a connecting plate (1); Its features are: An adjustable mounting structure (2) is uniformly fixed on one side of the connecting plate (1). The adjustable mounting structure (2) includes a connecting bracket (21) uniformly fixed on one side of the connecting plate (1). Both sides of the connecting bracket (21) are threaded with a connecting shaft (23). One end of the connecting shaft (23) extends to the outside of the connecting bracket (21) and is fixed with a rotating handle (22). The other end of the connecting shaft (23) extends to the inside of the connecting bracket (21) and is rotatably connected with a clamping plate (24). A detection structure (4) is fixed on the side of the connecting plate (1) away from the adjustable mounting structure (2). A camera (5) is fixed on the outer wall of the connecting plate (1) below the detection structure (4). LED lights (6) are fixed on the outer walls of both sides of the bottom of the connecting plate (1). A sealing structure (3) is fixed on the outer wall of the outer connecting plate (1) of the camera (5).

2. The alarm device for on-line tool change of an underwater cutting machine according to claim 1, characterized in that: The connecting brackets (21) are symmetrically distributed on both sides of the connecting plate (1), and the connecting shafts (23) are symmetrically distributed on both sides of the connecting brackets (21).

3. The alarm device for on-line tool change of an underwater cutting machine according to claim 1, characterized in that: The sealing structure (3) includes an outer sealing gasket (31) fixed to one edge of the connecting plate (1). The outer sealing gasket (31) has a groove (32) inside. A slot (33) is provided on one side of the groove (32). The sealing structure (3) also includes a circular plate (35) provided on one side of the slot (33). Bolts (34) are passed through the edge of the circular plate (35). A connecting groove (36) is evenly provided on the side of the circular plate (35) near the outer sealing gasket (31). A gasket (37) is interference-fitted into the inside of the connecting groove (36). An inner sealing gasket (39) is fixed on one side of the gasket (37). A protective cover (38) is fixed on the outer wall of the circular plate (35).

4. The alarm device for on-line tool change of an underwater cutting machine according to claim 3, characterized in that: The bolts (34) are evenly distributed inside the circular plate (35), and one end of each bolt (34) extends into the interior of the connecting plate (1).

5. The on-line alarm device for knife change of an underwater cutting machine according to claim 3, characterized in that: The inner sealing gasket (39) and the outer sealing gasket (31) are engaged and connected by a slot (33), and the interior of the inner sealing gasket (39) is hollow.

6. The underwater pelletizer online blade change alarm device according to claim 1, characterized in that: The detection structure (4) includes a detection box (41) fixed on the outer wall of one side of the connecting plate (1). A circuit board (42) is fixed inside the detection box (41). A data processor (43) is fixed on one side of the top of the circuit board (42). A microcontroller (44) is arranged below the data processor (43). A data storage device (45) is arranged below the microcontroller (44).

7. The online tool change alarm device for an underwater cutting machine according to claim 6, characterized in that: The input terminal of the data processor (43) is electrically connected to the output terminal of the camera (5), and the output terminal of the data processor (43) is electrically connected to the input terminal of the microcontroller (44).

8. The online tool change alarm device for an underwater cutting machine according to claim 6, characterized in that: The output terminal of the microcontroller (44) and the input terminal of the data memory (45) are electrically connected.

9. The online tool change alarm device for an underwater cut-and- strip machine according to claim 1, characterized in that: The LED lights (6) are symmetrically distributed on both sides of the camera (5).

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