A plastic particle detection apparatus

Abstract

This utility model relates to the field of plastic particle detection technology and discloses a plastic particle detection device. The device includes: an infrared moisture analyzer with a cover hinged to its top; and a dehumidification mechanism, comprising a fixed block fixedly connected to the top of the cover, a connecting block engaged with the inner wall of the fixed block, and a dehumidification pipe and a through pipe fixedly connected to the inner wall of the connecting block. One end of the through pipe is fixedly connected to the inner wall of the dehumidification pipe. A first spring and a sealing plug cooperate to block the through pipe, increasing the air pressure inside the infrared moisture analyzer. This causes moisture to be guided through the dehumidification pipe to the through pipe, pushing the sealing plug upwards and allowing the moisture to be discharged through the through pipe. This ensures that moisture can be smoothly discharged from the infrared moisture analyzer, preventing moisture from being difficult to expel and thus ensuring the accuracy of the dryness detection of plastic particles.

Description

Technical Field

[0001] This utility model relates to the field of plastic particle detection technology, and in particular to a plastic particle detection device. Background Technology

[0002] Plastic particles, also known as plastic granules, are the most basic form of raw material in the plastics processing industry. In order to ensure the dryness of plastic particles, infrared moisture analyzers are usually used to detect the moisture content of plastic particles, thereby improving the efficiency of plastics processing and product quality.

[0003] Existing infrared moisture analyzers typically have a moisture discharge channel at the top inside, through which rising moisture is discharged. However, plastic particles easily release sticky substances during heating, and the inner diameter of the moisture discharge channel is usually small. The sticky substances follow the moisture through the moisture discharge channel and easily adhere to the inner wall of the channel, which can easily cause blockage and affect the accuracy of drying detection of plastic particles. Utility Model Content

[0004] Therefore, it is necessary to provide a plastic particle detection device to address the problem that sticky substances tend to adhere to the inner wall of the moisture discharge channel as it passes through, which can easily lead to blockage of the moisture discharge channel.

[0005] The device includes: an infrared moisture meter, the top of which is hinged to a cover; and a dehumidification mechanism, the dehumidification mechanism including a fixing block fixedly connected to the top of the cover, a connecting block snapped into the inner wall of the fixing block, a dehumidification pipe and a through pipe fixedly connected to the inner wall of the connecting block, one end of the through pipe being fixedly connected to the inner wall of the dehumidification pipe, a sealing plug snapped into the inner wall of the through pipe, and a first spring fixedly connected to the opposite end of the sealing plug and the through pipe.

[0006] Preferably, an elastic pad is fixedly connected to the upper surface of the connecting block, and the surface of the elastic pad is engaged with the inner wall of the fixed block.

[0007] Preferably, a sealing ring is fixedly connected to the top of the fixing block, and the surface of the sealing ring is snapped into the inner wall of the elastic pad.

[0008] Preferably, both sides of the inner wall of the fixing block are slidably connected with locking blocks, and the surface of the locking blocks is engaged with the inner wall of the connecting block.

[0009] Preferably, a guide block is fixedly connected to the front end of the fixing block.

[0010] Preferably, a limiting block is slidably connected to the surface of the guide block, and one side of the limiting block contacts one side of the locking block.

[0011] Preferably, weight blocks are fixedly connected to both sides of the top of the limiting block. Through the cooperation of the locking block, guide block, limiting block and weight blocks, the connecting block inside the fixed block is unlocked, thereby facilitating the disassembly and cleaning of the exhaust pipe and the through pipe.

[0012] Preferably, a second spring is fixedly connected to one side of the locking block, and the other end of the second spring is fixedly connected to one side of the fixing block.

[0013] Preferably, an anti-deviation block is fixedly connected to the end of the through pipe, and the inner wall of the sealing plug is slidably connected to the surface of the anti-deviation block. The anti-deviation block is used to guide and limit the longitudinally moving sealing plug, preventing the sealing plug from shifting during longitudinal movement.

[0014] Preferably, the bottom end of the sealing plug is curved into an arc shape, and the surface of the through tube is L-shaped.

[0015] Beneficial technical effects: (1) By cooperating with the first spring and the sealing plug, the passage pipe is blocked. By blocking the exhaust pipe, the air pressure inside the infrared moisture analyzer is increased, and the moisture is guided to the passage pipe through the exhaust pipe and pushes the sealing plug to move upward, so that the moisture can be discharged through the passage pipe. This ensures that the moisture can be discharged smoothly from the infrared moisture analyzer and avoids the difficulty in discharging the moisture inside the infrared moisture analyzer, thereby ensuring the accuracy of the drying detection of plastic particles. (2) By cooperating with the elastic pad and the sealing ring, the connection between the fixing block and the connecting block is sealed, preventing the hot air and moisture inside the infrared moisture analyzer from being discharged through the connection between the fixing block and the connecting block. This ensures the heating effect on the plastic particles, thereby ensuring the accuracy of the drying detection of plastic particles. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the dehumidification mechanism of this utility model.

[0019] Figure 3 This is an exploded view of the fixing block and connecting block of this utility model.

[0020] Figure 4 This utility model Figure 3 Enlarged view of point A in the middle.

[0021] Figure 5 This is a cross-sectional view of the dehumidification mechanism of this utility model.

[0022] Reference numerals: 100, Infrared moisture meter; 200, Cover; 300, Dehumidification mechanism; 301, Fixing block; 302, Connecting block; 303, Dehumidification pipe; 304, Through pipe; 305, Sealing plug; 306, First spring; 307, Anti-deviation block; 308, Elastic pad; 309, Sealing ring; 310, Locking block; 311, Second spring; 312, Guide block; 313, Limiting block; 314, Weight block. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0024] The following is combined Figures 1-5 This invention describes a plastic particle detection device.

[0025] Detailed Description: A plastic particle detection device includes: an infrared moisture analyzer 100, with a cover 200 hinged to the top of the infrared moisture analyzer 100; a dehumidification mechanism 300, which includes a fixing block 301 fixedly connected to the top of the cover 200, a connecting block 302 snapped into the inner wall of the fixing block 301, a dehumidification pipe 303 and a through pipe 304 fixedly connected to the inner wall of the connecting block 302, one end of the through pipe 304 being fixedly connected to the inner wall of the dehumidification pipe 303, a sealing plug 305 snapped into the inner wall of the through pipe 304, a first spring 306 fixedly connected to the opposite end of the sealing plug 305 and the through pipe 304, the bottom end of the sealing plug 305 being curved into an arc shape, and the surface of the through pipe 304 being "L" shaped.

[0026] It should be noted that the bottom end of the dehumidification pipe 303 penetrates and extends out of the inner wall of the cover 200, and the model of the infrared moisture analyzer 100 is JT-120.

[0027] In this embodiment, in the initial state, the elastic force of the first spring 306 pushes the sealing plug 305 downward, so that the surface of the sealing plug 305 is engaged in the through tube 304. When it is necessary to test the plastic particles, the power supply of the infrared moisture analyzer 100 is turned on, the infrared moisture analyzer 100 switch is turned on, and it is preheated for a period of time to allow the instrument to reach a stable working state. The sample tray is placed on the weighing platform of the instrument, the tare is zeroed, and then an appropriate amount of plastic particle sample is accurately weighed with a small spoon and evenly spread on the sample tray. According to the characteristics of the plastic particles and the testing requirements, the appropriate heating temperature and heating time are set. After setting the parameters, the "start" button of the instrument is pressed, and the instrument begins to heat and dry the sample.

[0028] During the heating process, the instrument displays the changes in sample mass and moisture content in real time. The sticky substances released by the plastic particles during heating drift into the exhaust pipe 303 along with the moisture, and some of the sticky substances tend to adhere to the exhaust pipe 303.

[0029] When the heating time reaches the set value or the sample mass no longer changes, the instrument automatically stops heating and displays the final moisture content result. Read this result, record it, and analyze it.

[0030] like Figure 3 As shown, an elastic pad 308 is fixedly connected to the upper surface of the connecting block 302, and the surface of the elastic pad 308 is snapped into the inner wall of the fixing block 301. A sealing ring 309 is fixedly connected to the top of the fixing block 301, and the surface of the sealing ring 309 is snapped into the inner wall of the elastic pad 308.

[0031] It should be noted that the sealing plug 305, elastic pad 308 and sealing ring 309 are all silicone rubber components, which have good high temperature resistance and sealing performance.

[0032] like Figure 4 As shown, both sides of the inner wall of the fixing block 301 are slidably connected to the locking blocks 310. The surface of the locking blocks 310 is locked to the inner wall of the connecting block 302. The front end of the fixing block 301 is fixedly connected to the guide block 312. The surface of the guide block 312 is slidably connected to the limiting block 313. One side of the limiting block 313 contacts one side of the locking block 310. Both sides of the top of the limiting block 313 are fixedly connected to the weight blocks 314. One side of the locking block 310 is fixedly connected to the second spring 311. The other end of the second spring 311 is fixedly connected to one side of the fixing block 301. The end of the through pipe 304 is fixedly connected to the anti-deviation block 307. The inner wall of the sealing plug 305 is slidably connected to the surface of the anti-deviation block 307.

[0033] The exhaust pipe 303, the through pipe 304, the first spring 306 and the second spring 311 are all stainless steel components, which have good smoothness, high temperature resistance, durability and corrosion resistance. Because the inner walls of the exhaust pipe 303 and the through pipe 304 are smooth, it is convenient to clean the sticky substances attached to the inner walls of the exhaust pipe 303 and the through pipe 304.

[0034] In this embodiment, when the exhaust pipe 303 and the through pipe 304 need to be cleaned, the limiting block 313 is pushed up to the side away from the locking block 310, the two locking blocks 310 are pushed away from each other and away from the connecting block 302, and the connecting block 302 is pulled up to move away from the fixing block 301, so that the exhaust pipe 303 is away from the cover 200. At this time, the exhaust pipe 303 and the through pipe 304 can be rinsed.

[0035] After rinsing and drying, the connecting block 302 is locked inside the fixing block 301, and the elastic pad 308 is locked inside the sealing ring 309. The restriction on the two locking blocks 310 is loosened. The elastic force of the second spring 311 pushes the locking block 310 to move and lock it inside the connecting block 302. The restriction of the limiting block 313 is loosened. The weight of the weight block 314 causes the limiting block 313 to move down and abut against one side of the locking block 310, thereby limiting the locking block 310 and making the connecting block 302 stably locked inside the fixing block 301.

[0036] Working principle: In the initial state, the elastic force of the first spring 306 pushes the sealing plug 305 downward, so that the surface of the sealing plug 305 is engaged in the passage pipe 304. The sticky substance released by the plastic particles during heating is dispersed into the exhaust pipe 303 along with the moisture. Some of the sticky substance easily adheres to the exhaust pipe 303. When the exhaust pipe 303 is blocked, the moisture in the infrared moisture meter 100 flows into the passage pipe 304 through the exhaust pipe 303. When the moisture pressure increases, it will push the sealing plug 305 upward, so that the top of the passage pipe 304 is unobstructed, and the moisture in the exhaust pipe 303 is discharged through the passage pipe 304, avoiding the accumulation of moisture in the infrared moisture meter 100 that cannot be discharged.

[0037] It should be noted that the infrared moisture analyzer 100, cover 200, fixing block 301, connecting block 302 and weight block 314 mentioned above are all devices with relatively mature existing technology. The specific model can be selected according to actual needs. At the same time, the infrared moisture analyzer 100 can be powered by the built-in power supply or by the mains power. The specific power supply method is selected according to the situation and will not be elaborated here.

[0038] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A plastic particle detection device, characterized in that, include: An infrared moisture meter (100) is hinged to a cover (200) at its top; a dehumidification mechanism (300) includes a fixing block (301) fixedly connected to the top of the cover (200), a connecting block (302) being snapped into the inner wall of the fixing block (301), a dehumidification pipe (303) and a through pipe (304) being fixedly connected into the inner wall of the connecting block (302), one end of the through pipe (304) being fixedly connected to the inner wall of the dehumidification pipe (303), a sealing plug (305) being snapped into the inner wall of the through pipe (304), and a first spring (306) being fixedly connected to the opposite end of the sealing plug (305) and the through pipe (304).

2. The plastic particle detection device according to claim 1, characterized in that, An elastic pad (308) is fixedly connected to the upper surface of the connecting block (302), and the surface of the elastic pad (308) is snapped into the inner wall of the fixing block (301).

3. The plastic particle detection device according to claim 1, characterized in that, A sealing ring (309) is fixedly connected to the top of the fixing block (301), and the surface of the sealing ring (309) is snapped into the inner wall of the elastic pad (308).

4. The plastic particle detection device according to claim 1, characterized in that, Both sides of the inner wall of the fixed block (301) are slidably connected with a locking block (310), and the surface of the locking block (310) is engaged with the inner wall of the connecting block (302).

5. The plastic particle detection device according to claim 1, characterized in that, The front end of the fixed block (301) is fixedly connected to the guide block (312).

6. The plastic particle detection device according to claim 5, characterized in that, The guide block (312) is slidably connected to a limiting block (313), and one side of the limiting block (313) contacts one side of the locking block (310).

7. The plastic particle detection device according to claim 6, characterized in that, The top two sides of the limiting block (313) are fixedly connected with weight blocks (314).

8. The plastic particle detection device according to claim 4, characterized in that, A second spring (311) is fixedly connected to one side of the card block (310), and the other end of the second spring (311) is fixedly connected to one side of the fixing block (301).

9. The plastic particle detection device according to claim 1, characterized in that, The end of the tube (304) is fixedly connected to an anti-deviation block (307), and the inner wall of the sealing plug (305) is slidably connected to the surface of the anti-deviation block (307).

10. The plastic particle detection device according to claim 1, characterized in that, The bottom end of the sealing plug (305) is curved into an arc shape, and the surface of the through tube (304) is "L" shaped.

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