Water content tester for PBT (polybutylene terephthalate) processing

By introducing a water vapor adsorption mechanism and a motor-driven fan into the moisture analyzer, the measurement error caused by water vapor accumulation was solved, and the accuracy and dryness of the measurement results were achieved.

CN224137262UActive Publication Date: 2026-04-17SHINKONG APPLIED MATERIALS (JIANGSU) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHINKONG APPLIED MATERIALS (JIANGSU) CO LTD
Filing Date
2025-03-17
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

When the moisture analyzer heats the PBT, the evaporated water vapor cannot be discharged in time, but accumulates around the exhaust port and falls back onto the PBT, resulting in inaccurate measurement results.

Method used

The instrument employs a water vapor adsorption mechanism, utilizing a desiccant plate to adsorb water vapor from the air. A motor-driven fan accelerates airflow, and a limiting and ejection mechanism enables rapid replacement of the desiccant plate, keeping the instrument's interior dry.

Benefits of technology

It effectively prevents water vapor from accumulating in the exhaust port, ensuring the accuracy of the measurement results, and maintains the adsorption effect by quickly replacing the desiccant plate.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a moisture tester for PBT (polybutylece terephthalate) processing, which comprises a tester main body, the tester main body is rotatably connected with a cover body, and the side wall of the cover body is provided with a slot; the water vapor adsorption mechanism is arranged in the slot; the exhaust mechanism comprises a shell, a bracket, a motor and a fan; the water vapor adsorption mechanism comprises an insertion plate, the insertion plate is fixedly connected into the insertion groove, a mounting opening is formed in the middle of the insertion plate, a drying agent plate is fixedly connected into the mounting opening, the shell is fixed to the top face of the cover body, an air outlet is formed in the top face of the shell, the support is fixedly connected to the side wall of the shell, and the motor is fixed to the top face of the support. The fan is fixedly connected to the power output end of the motor. The drying agent plate can keep air in an instrument dry, avoids inaccurate measurement caused by the fact that water vapor cannot be discharged in time and falls onto PBT after being gathered at the top, can be quickly replaced by a new drying agent plate, and keeps the adsorption effect on the water vapor in the instrument.
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Description

Technical Field

[0001] This utility model relates to the field of moisture determination technology, and in particular to a moisture analyzer for PBT processing. Background Technology

[0002] PBT, or polybutylene terephthalate, is a polyester produced by the condensation polymerization of terephthalic acid and 1,4-butanediol. It is an important thermoplastic polyester and one of the five major engineering plastics. PBT is a milky white, semi-transparent to opaque, semi-crystalline thermoplastic polyester, widely used in automobiles, machinery, precision instrument parts, electronics, textiles, and other fields. Moisture content needs to be measured during PBT processing, thus requiring a moisture meter.

[0003] When the moisture analyzer is working, it heats the PBT with a halogen lamp to evaporate the moisture inside. The evaporated water vapor can only be discharged through the vent at the top. However, the water vapor cannot be discharged in time and will accumulate around the vent. When it accumulates into water droplets, it falls back onto the PBT, causing errors in the measurement results. Utility Model Content

[0004] The purpose of this invention is to provide a moisture analyzer for PBT processing, in order to solve the problem mentioned in the background art, where the moisture analyzer heats the PBT with a halogen lamp during operation to evaporate the moisture inside, but the evaporated water vapor can only be discharged through the exhaust hole at the top. The water vapor cannot be discharged in time and will accumulate around the exhaust hole. When it accumulates into water droplets, it falls back onto the PBT, resulting in errors in the measurement results.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a moisture analyzer for PBT processing, comprising:

[0007] The measuring instrument body is rotatably connected to a cover, the cover has a round hole in the middle and a slot on the side wall of the cover;

[0008] A water vapor adsorption mechanism is disposed within a slot;

[0009] An exhaust mechanism, comprising a housing, a bracket, a motor, and a fan;

[0010] The water vapor adsorption mechanism includes an insert plate, which is fixedly connected to a slot. An installation opening is provided in the middle of the insert plate, and a desiccant plate is fixedly connected to the installation opening. The desiccant plate is aligned with the circular hole.

[0011] The outer shell is fixed to the top surface of the cover, and an air outlet is provided on the top surface of the outer shell. The bracket is fixedly connected to the side wall of the outer shell, the motor is fixed to the top surface of the bracket, and the fan is fixedly connected to the power output end of the motor.

[0012] Furthermore, the side wall of the desiccant plate is fixedly provided with two protruding posts, and the side wall of the mounting port is provided with two fixing grooves, and the two protruding posts slide in the two fixing grooves respectively.

[0013] Furthermore, the water vapor adsorption mechanism also includes a limiting component and a pushing component. There are two pushing components. The pushing components are disposed on the side wall of the slot. The side wall of the cover has a limiting hole. The limiting component is disposed on the side wall of the insert plate.

[0014] Furthermore, the limiting component includes a square hole, a partition, an inclined block, a guide post, and a first spring;

[0015] The square hole is formed on the side wall of the insert plate, the partition is fixedly installed in the square hole, the inclined block is slidably connected in the square hole, one end of the guide post is fixedly connected to the bottom surface of the inclined block, the other end of the guide post passes through the partition, one end of the first spring is fixedly connected to the bottom surface of the inclined block, the other end of the first spring is fixedly connected to the partition, and the guide post passes through the first spring.

[0016] Furthermore, the ejection assembly includes a push plate, a telescopic rod, and a second spring;

[0017] One end of the telescopic rod is fixedly connected to the side wall of the slot, the telescopic rod passes through the second spring, the push plate is fixedly connected to the other end of the telescopic rod, and the other end of the second spring is fixedly connected to the second spring.

[0018] Furthermore, the feature is that a halogen lamp tube is fixedly connected inside the circular hole, a handle is fixedly connected to the side wall of the cover, and a rubber sleeve is fixedly connected to the handle.

[0019] Compared with the prior art, the advantages of this utility model are: the fan driven by the motor accelerates the exhaust of the internal air, and the internal air first passes through the desiccant plate in the water vapor adsorption mechanism to adsorb the water vapor in the air, keeping the air dry and avoiding the water vapor from not being discharged in time and falling onto the PBT again after accumulating at the top, which would lead to inaccurate measurement.

[0020] Based on the above-mentioned beneficial effects, the insert plate is separated from the cover by pressing the inclined block in the limiting component, and then the second spring in the ejection component rebounds to drive the push plate to push the insert plate to pop out automatically. Then the dryer plate is removed from the insert plate and a new desiccant plate is quickly replaced to maintain the adsorption effect on the internal water vapor. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the first overall structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the internal structure of the cover of this utility model;

[0024] Figure 3 This utility model Figure 2 A schematic diagram of the structure of part A in the diagram;

[0025] Figure 4 This is a schematic diagram of the insert plate structure of this utility model.

[0026] The attached diagram lists the components represented by each number as follows:

[0027] The measuring instrument body; 110, cover; 111, round hole; 112, halogen lamp tube; 113, slot; 114, limiting hole; 200, water vapor adsorption mechanism; 210, insert plate; 211, mounting port; 212, fixing groove; 220, desiccant plate; 221, protruding post; 230, limiting component; 231, square hole; 232, partition plate; 233, inclined block; 234, guide post; 235, first spring; 240, push-out component; 241, push plate; 242, telescopic rod; 243, second spring; 300, exhaust mechanism; 310, outer shell; 311, air outlet; 320, bracket; 330, motor; 340, fan; 400, handle; 410, rubber sleeve. Detailed Implementation

[0028] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0029] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0031] Please see Figure 1-4 As shown, this embodiment is a moisture analyzer for PBT processing, comprising:

[0032] The measuring instrument body 100 is rotatably connected to the measuring instrument body 100, the cover 110 has a round hole 111 in the middle, and the cover 110 has a slot 113 on the side wall.

[0033] A water vapor adsorption mechanism 200 is disposed in slot 113;

[0034] The exhaust mechanism 300 includes a housing 310, a bracket 320, a motor 330, and a fan 340.

[0035] The water vapor adsorption mechanism 200 includes an insert plate 210, which is fixedly connected to the slot 113. An installation port 211 is opened in the middle of the insert plate 210, and a desiccant plate 220 is fixedly connected in the installation port 211. The desiccant plate 220 is aligned with the round hole 111. The water vapor generated inside is adsorbed by the desiccant inside the desiccant plate 220, thereby keeping the inside dry.

[0036] The outer casing 310 is fixed to the top surface of the cover 110. An air outlet 311 is provided on the top surface of the outer casing 310. The bracket 320 is fixedly connected to the side wall of the outer casing 310. The motor 330 is fixed to the top surface of the bracket 320. The fan 340 is fixedly connected to the power output end of the motor 330. When the motor 330 is started, it drives the bracket 320 to rotate. The rotation of the bracket 320 exhausts the internal air through the air outlet 311.

[0037] A halogen lamp tube 112 is fixedly connected inside the round hole 111. A handle 400 is fixedly connected to the side wall of the cover 110. A rubber sleeve 410 is fixedly connected to the handle 400. The halogen lamp tube 112 heats the PBT. The rubber sleeve 410 on the handle 400 can prevent burns when opening the cover 110.

[0038] Working principle: After placing the PBT inside the main body 100 of the measuring instrument, start the main body 100 of the measuring instrument, weigh it first, then cover it with the cover 110, turn on the halogen lamp 112 to heat the PBT, evaporate the moisture inside the PBT, start the motor 330 to drive the bracket 320 to rotate, the rotation of the bracket 320 will exhaust the internal air through the air outlet 311, accelerate the air flow, when the internal air is exhausted, it first passes through the desiccant inside the desiccant plate 220 to adsorb the water vapor, thereby keeping the inside dry, avoiding the water vapor not being discharged in time and falling back onto the PBT after accumulating at the top, which would lead to inaccurate measurement;

[0039] In this step, the motor 330 drives the fan 340 to rotate and accelerate the exhaust of the internal air. The internal air first passes through the desiccant plate 220 in the water vapor adsorption mechanism 200 to adsorb the water vapor in the air, keeping the air dry and preventing water vapor from not being discharged in time and accumulating at the top before falling back onto the PBT, which would lead to inaccurate measurements.

[0040] Please see Figure 1-4 As shown, in this embodiment, based on the above structure, the desiccant plate 220 has two protruding posts 221 fixedly installed on its side wall, and the mounting port 211 has two fixing grooves 212 on its side wall. The two protruding posts 221 slide in the two fixing grooves 212 respectively. After aligning the protruding posts 221 with the fixing grooves 212, the desiccant plate 220 is placed into the mounting port 211, and then rotated laterally along the fixing grooves 212 to fix the desiccant plate 220 to the insert plate 210 so that it will not fall off.

[0041] The water vapor adsorption mechanism 200 also includes a limiting component 230 and an ejection component 240. There are two ejection components 240. The ejection components 240 are disposed on the side wall of the slot 113. A limiting hole 114 is opened on the side wall of the cover 110. The limiting component 230 is disposed on the side wall of the insert plate 210.

[0042] The limiting component 230 includes a square hole 231, a partition 232, an inclined block 233, a guide post 234, and a first spring 235;

[0043] A square hole 231 is formed on the side wall of the insert plate 210. A partition plate 232 is fixedly set in the square hole 231. An inclined block 233 is slidably connected in the square hole 231. One end of a guide post 234 is fixedly connected to the bottom surface of the inclined block 233, and the other end of the guide post 234 passes through the partition plate 232. One end of a first spring 235 is fixedly connected to the bottom surface of the inclined block 233. The first spring 235 inserts the insert plate 210 into the slot 113. When the inclined surface of the inclined block 233 contacts the side wall of the slot 113, it slides inward under the action of the inclined surface. The inclined block 233 drives the guide post 234 to slide inward and compresses the first spring 235. When the inclined block 233 reaches the limiting hole 114, the first spring 235 rebounds and drives the guide post 234 to rebound and causes the inclined block 233 to extend into the limiting hole 114, so that the insert plate 210 will not slide out.

[0044] The ejection assembly 240 includes a push plate 241, a telescopic rod 242, and a second spring 243;

[0045] One end of the telescopic rod 242 is fixedly connected to the side wall of the slot 113. The telescopic rod 242 passes through the second spring 243. The push plate 241 is fixedly connected to the other end of the telescopic rod 242. The other end of the second spring 243 is fixedly connected to the second spring 243. When the insert plate 210 is inserted into the slot 113, the protrusions on both sides contact the push plate 241 and drive the push plate 241 to move inward. The push plate 241 drives the telescopic rod 242 to retract and compresses the second spring 243.

[0046] Working principle: When the desiccant plate 220 needs to be removed, press the inclined block 233 to move the guide post 234 inward and compress the first spring 235. After pressing the inclined block 233 to disengage from the limiting hole 114, the second spring 243 rebounds and drives the push plate 241 to push outward and extends the telescopic rod 242. The telescopic rod 242 pushes out the insert plate 210. After pulling out the insert plate 210, rotate the desiccant plate 220 so that the protrusion 221 is aligned with the upper opening of the fixing groove 212. Finally, push the desiccant plate 220 out along the upper opening of the fixing groove 212 to achieve quick removal of the desiccant plate 220.

[0047] When the desiccant plate 220 is removed and replaced, align the protrusion 221 with the upper opening of the fixing groove 212, press the desiccant plate 220 into the mounting opening 211, and then rotate the desiccant plate 220 to make the protrusion 221 slide along the fixing groove 212, so that the desiccant plate 220 will not fall off the mounting opening 211. Then insert the mounting opening 211 along the slot 113. When the inclined surface of the inclined block 233 contacts the side wall of the slot 113, it slides inward under the action of the inclined surface. The inclined block 233 drives the guide post 234 to slide inward and causes the first spring to... When the spring 235 is compressed, after the inclined block 233 reaches the limiting hole 114, the first spring 235 rebounds, causing the guide post 234 to rebound and the inclined block 233 to extend into the limiting hole 114, so that the insert plate 210 will not slip out. When the insert plate 210 is inserted into the slot 113, the protrusions on both sides contact the push plate 241 respectively and drive the push plate 241 to move inward. The push plate 241 drives the telescopic rod 242 to retract and compress the second spring 243, thereby realizing the rapid installation of the desiccant plate 220 and maintaining the adsorption effect on the internal water vapor.

[0048] In this step, the insert plate 210 is separated from the cover 110 by pressing the inclined block 233 in the limiting component 230. Then, the second spring 243 in the push-out component 240 rebounds and drives the push plate 241 to push the insert plate 210 to pop out automatically. Then, the dryer plate 220 is removed from the insert plate 210 and a new desiccant plate 220 is quickly replaced to maintain the adsorption effect on the internal water vapor.

[0049] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0050] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A moisture analyzer for PBT processing, characterized in that, include: The measuring instrument body (100) is rotatably connected to a cover (110), the cover (110) has a round hole (111) in the middle, and a slot (113) is provided on the side wall of the cover (110). A water vapor adsorption mechanism (200) is disposed in a slot (113); An exhaust mechanism (300) includes a housing (310), a bracket (320), a motor (330), and a fan (340). The water vapor adsorption mechanism (200) includes an insert plate (210), which is fixedly connected in a slot (113). An installation port (211) is provided in the middle of the insert plate (210), and a desiccant plate (220) is fixedly connected in the installation port (211). The desiccant plate (220) is aligned with the round hole (111). The outer shell (310) is fixed to the top surface of the cover (110), and the top surface of the outer shell (310) is provided with an air outlet (311). The bracket (320) is fixedly connected to the side wall of the outer shell (310), the motor (330) is fixed to the top surface of the bracket (320), and the fan (340) is fixedly connected to the power output end of the motor (330).

2. The moisture meter for PBT processing according to claim 1, characterized in that, The desiccant plate (220) has two protruding posts (221) fixedly installed on its side wall. The mounting port (211) has two fixing grooves (212) on its side wall. The two protruding posts (221) slide in the two fixing grooves (212) respectively.

3. The moisture analyzer for PBT processing according to claim 1, characterized in that, The water vapor adsorption mechanism (200) further includes a limiting component (230) and a pushing component (240). There are two pushing components (240). The pushing components (240) are disposed on the side wall of the slot (113). The side wall of the cover (110) has a limiting hole (114). The limiting component (230) is disposed on the side wall of the insert plate (210).

4. The moisture meter for PBT processing according to claim 3, characterized in that, The limiting component (230) includes a square hole (231), a partition (232), an inclined block (233), a guide post (234), and a first spring (235); The square hole (231) is opened on the side wall of the insert plate (210), the partition plate (232) is fixedly installed in the square hole (231), the inclined block (233) is slidably connected in the square hole (231), one end of the guide post (234) is fixedly connected to the bottom surface of the inclined block (233), the other end of the guide post (234) passes through the partition plate (232), one end of the first spring (235) is fixedly connected to the bottom surface of the inclined block (233), the other end of the first spring (235) is fixedly connected to the partition plate (232), and the guide post (234) passes through the first spring (235).

5. The moisture meter for PBT processing according to claim 3, characterized in that, The ejection assembly (240) includes a push plate (241), a telescopic rod (242), and a second spring (243). One end of the telescopic rod (242) is fixedly connected to the side wall of the slot (113), the telescopic rod (242) passes through the second spring (243), the push plate (241) is fixedly connected to the other end of the telescopic rod (242), and the other end of the second spring (243) is fixedly connected to the second spring (243).

6. The moisture meter for PBT processing according to claim 5, characterized in that, A halogen lamp tube (112) is fixedly connected inside the round hole (111), a handle (400) is fixedly connected to the side wall of the cover (110), and a rubber sleeve (410) is fixedly connected to the handle (400).