A device for detecting thermal deformation of plastic particles

Abstract

The present invention relates to the technical field of plastic thermal deformation detection, specifically to a plastic particle thermal deformation detection device, including an auxiliary heat control mechanism, a sample clamping mechanism installed on the auxiliary heat control mechanism, and a lifting mechanism installed on the auxiliary heat control mechanism. A heat conduction nozzle for transmitting heat energy is installed at the bottom of the base, and three groups of sample clamping mechanisms for suspending and clamping three plastic samples are installed on the top of the base. When three sealing shields are encapsulated in the three gaps at the top of the base, the base and the three sealing shields will form a thermal deformation detection for the three plastic samples. At this time, the top surfaces of the three plastic samples will be controlled in a uniform horizontal state. With the increase of heat energy in the three gaps at the top of the base, the experimenter can visually observe the amplitude changes of the three suspended plastic samples after heat deformation by comparing two scale glass plates, so as to facilitate the experimenter to detect different plastic samples.

Description

Technical Field

[0001] The invention relates to the technical field of plastic thermal deformation detection, in particular to a plastic particle thermal deformation detection device. Background Art

[0002] Plastic particles are the common name for plastic granules. They are the raw materials for storage, transportation and processing of plastics in the form of semi-finished products. Plastics are a type of polymer material. Ethylene, propylene, vinyl chloride, styrene, etc. can be produced using petroleum as raw material. The molecules of these substances can react with each other under certain conditions to form large compounds. Whether plastic particles can reach the qualified state for sale requires various tests on the plastic particles, and thermal deformation testing is an indispensable part of the testing process.

[0003] At present, thermoplastics are in a glassy state at room temperature, but as the temperature rises, they gradually transform into a highly elastic state, gradually lose their original rigidity, become soft, and will produce larger deformations under the action of smaller external forces. In the process of thermal deformation detection using this method, the plastic sample needs to be fixed at both ends to achieve a suspended state. However, in this link, it is difficult for experimenters to intuitively detect the thermal deformation of the sample to be tested, and the thermal deformation of plastic samples is difficult to test under gradual pressure. The surface flatness of multiple samples is not unique, so the state fluctuations of thermal deformation of existing plastic samples are difficult to compare and observe.

[0004] Regarding the thermal deformation detection of multiple samples, how to position the multiple samples in a single horizontal plane to improve the gradual pressure detection of multiple plastic samples is a technical difficulty that the present invention needs to solve. Summary of the invention

[0005] The present invention aims to solve one of the technical problems existing in the prior art or related technology.

[0006] To this end, the technical solution adopted in the present invention is:

[0007] A plastic particle thermal deformation detection device, comprising an auxiliary heat control mechanism, a sample clamping mechanism installed on the auxiliary heat control mechanism, a lifting mechanism installed on the auxiliary heat control mechanism, and a protective mechanism installed on the lifting mechanism and located in the auxiliary heat control mechanism, wherein the auxiliary heat control mechanism comprises a base, three fasteners fixed on the outer end of the base, two glass plates fixedly installed in two vertical plates in the middle of the top surface of the base, two scale glass plates installed in the vertical plates on both sides of the top surface of the base, and a heat conduction nozzle fixedly installed at the bottom of the base, and the sample clamping mechanism comprises a column fixed on the base by bolts, two scale rulers fixedly installed on the outer wall of the column, a screw barrel fixed in the vertical hole at the top of the column by bolts, a lifting pad movably installed in the top end of the column, and a lifting pad fixedly installed at the lifting pad The invention relates to a beam frame on the base, an insert rod connected to the middle end tube of the beam frame by a tension spring, a screw movably installed in the screw barrel, a top plate movably installed on the outside of the screw, and a pressure plate connected to the top plate by a sub-spring. The lifting mechanism includes three bases respectively installed on one side of the bottom of the base, three limit outer frames fixedly installed on the other side of the bottom of the base, a support rod movably installed in the limit outer frame, a combined weight movably installed on the bottom end of the support rod, and a threaded kit movably installed on the top end of the support rod. The protective mechanism includes a vertical rod threadedly connected to the outer end of the threaded kit, a positioning sleeve movably installed on the outside of the vertical rod, a sealing shield fixedly installed on the outside of the positioning sleeve, a section pressure block installed on the bottom end of the vertical rod, a cushion block fixedly installed on the outer end of the sealing shield, and a hydraulic rod connected to the fastener.

[0008] In a preferred example, the present invention can be further configured as follows: rectangular notches are provided in the four vertical plates on the top of the base, symmetrically distributed grooves are provided on both sides of the top of the base, and screw holes are provided on the inner sides of the grooves.

[0009] By adopting the above technical solution, four vertical plates with equal spacing are installed on the top of the base, and three groups of symmetrically distributed columns are fixed in the rectangular grooves on the top of the base by multiple bolts. At this time, the three groups of symmetrically distributed columns can suspend the three plastic samples in a uniform horizontal state. At this time, the top surfaces of the three plastic samples will be flat, so as to facilitate the experimenters to intuitively monitor the plastic samples after heat deformation.

[0010] In a preferred example, the present invention can be further configured as follows: three heat-releasing pipes of equal specifications are installed on the top of the heat-conducting nozzle, and the ends of the three heat-releasing pipes respectively penetrate into the gap between two adjacent vertical plates on the top of the base.

[0011] By adopting the above technical solution, the three heat-releasing tubes on the top of the heat-conducting nozzle are respectively inserted into the gap between two adjacent vertical plates. At this time, the three heat-releasing tubes can continuously deliver heat energy to the middle of the ground of the plastic sample, so as to facilitate the experimenters to observe the deformation amplitude of the sample.

[0012] In a preferred example, the present invention can be further configured as follows: an inwardly recessed hole groove is opened in the end of the top of the column, the lifting pad is composed of two U-shaped brackets and a pad block adapted to the hole groove, and a T-shaped slider is installed on the inner side of the U-shaped bracket, and a thin sheet pointing to the outer scale of the scale is installed at the end of the U-shaped bracket away from the pad block.

[0013] By adopting the above technical solution, the combined rear beam frame and the positioning control of the lifting pad along the column are controlled by the insertion rod. As the pad inside the lifting pad bears the plastic samples of different thicknesses, the elastic pressure plate clamps the original top, and the thin plate installed at one end of the U-shaped bracket is lifted along the external scale of the scale ruler, it can effectively ensure that the device can effectively regulate the flatness of the plastic sample after thermal deformation.

[0014] In a preferred example, the present invention can be further configured as follows: a cylindrical cavity is provided inside the limiting outer frame, and a limiting groove for guiding the bottom end of the strut is provided on the outer wall of the vertical tube inside the limiting outer frame, a guide rod inserted into the combined weight is installed at the bottom end of the strut, and a circular gasket is installed on the guide rod.

[0015] By adopting the above technical solution, a cylindrical cavity is opened inside the limiting outer frame, and the bottom end of the support rod is movably installed in the limiting outer frame. At this time, the guide rod at the bottom end of the support rod will pass through the outside of the limiting groove, and the combined combination weights can be placed on the guide rod at the bottom of the support rod to facilitate the gradual pressurization deformation monitoring of the three plastic samples clamped subsequently.

[0016] In a preferred example, the present invention can be further configured as follows: vertical rails clamped on the sides of the vertical plates at the top of the base are provided on the sides of the plates at both ends of the sealing shield.

[0017] By adopting the above technical solution, three sealing shields are movably installed in the gaps between the four vertical plates on the top of the base. At this time, the three assembled sealing shields can form three independent sealed cavities between the four vertical plates, thereby facilitating the thermal deformation detection test of the three suspended plastic samples, while reducing the interference of external humidity and other factors on the three samples.

[0018] By adopting the above technical solution, the beneficial effects achieved by the present invention are:

[0019] 1. The present invention installs two scale glass plates and two glass plates for comparatively observing the deformation state of plastic samples in the four vertical plates on the top of the base, installs a heat-conducting nozzle for transmitting heat energy at the bottom of the base, and installs three groups of sample clamping mechanisms for suspending and clamping three plastic samples on the top of the base. When the three sealing shields are encapsulated in the three gaps on the top of the base, the base and the three sealing shields will form a structure for thermal deformation detection of the three plastic samples. At this time, the top surfaces of the three plastic samples will be controlled in a uniform horizontal state. As the heat energy in the three gaps on the top of the base increases, the experimenter can visually observe the amplitude changes of the three suspended plastic samples after thermal deformation by comparing the two scale glass plates, so as to facilitate the experimenter to detect different plastic samples.

[0020] 2. The present invention installs a positioning sleeve in the middle of the sealing shield, and movably installs a vertical rod in the positioning sleeve, and fixedly installs a cross-sectional pressure block at the bottom end of the vertical rod, which can gradually apply pressure to the middle of the plastic sample. At the same time, the top of the vertical rod is fixedly connected to the top of the support rod by a threaded kit. At this time, one end of the bottom end of the support rod that is movably installed in the internal cavity of the limiting outer frame will drive the cross-sectional pressure block to gradually apply a specified deformation to the plastic sample under the pressure of the combined weight, thereby facilitating the experimenter to test the strength of the plastic sample after thermoplasticization. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the present invention when used;

[0022] Figure 2 It is a bottom view schematic diagram of the present invention;

[0023] Figure 3 It is a schematic diagram of the lifting mechanism and the protection mechanism of the present invention;

[0024] Figure 4 It is a schematic diagram of the protection mechanism of the present invention;

[0025] Figure 5 It is a cross-sectional schematic diagram of the positioning sleeve of the present invention;

[0026] Figure 6 It is a schematic diagram of the auxiliary heating temperature control mechanism and the sample clamping mechanism of the present invention;

[0027] Figure 7 It is a schematic diagram of the auxiliary heat temperature control mechanism of the present invention;

[0028] Figure 8 is a schematic diagram of the sample clamping mechanism of the present invention;

[0029] Fig. 9 is an internal schematic diagram of the sample clamping mechanism of the present invention;

[0030] Fig.10 It is a cross-sectional schematic diagram of the screw barrel of the present invention.

[0031] Reference numerals:

[0032] 100, auxiliary heat temperature control mechanism; 110, base; 120, fastener; 130, glass plate; 140, scale glass plate; 150, heat conduction nozzle;

[0033] 200, sample clamping mechanism; 210, column; 220, scale ruler; 230, screw barrel; 240, lifting pad; 250, beam frame; 260, insertion rod; 270, screw rod; 280, top plate; 290, pressing sheet;

[0034] 300, lifting mechanism; 310, base; 320, limit outer frame; 330, support rod; 340, combined weight; 350, threaded kit;

[0035] 400, protective mechanism; 410, sealing shield; 420, cushion block; 430, hydraulic rod; 440, positioning sleeve; 450, vertical rod; 460, section pressing block. DETAILED DESCRIPTION

[0036] To make the purpose, technical solution and advantages of the present invention more clear, the present invention is further described in detail below in combination with specific implementations and with reference to the accompanying drawings. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0037] It is to be understood that these descriptions are exemplary only and are not intended to limit the scope of the invention.

[0038] A plastic particle thermal deformation detection device provided by some embodiments of the present invention will be described below with reference to the accompanying drawings. Embodiment 1:

[0039] Combination Figure 1-Figure 10 As shown, a plastic particle thermal deformation detection device provided by the present invention includes an auxiliary heat and temperature control mechanism 100, a sample clamping mechanism 200 installed on the auxiliary heat and temperature control mechanism 100, a lifting mechanism 300 installed on the auxiliary heat and temperature control mechanism 100, and a protective mechanism 400 installed on the lifting mechanism 300 and located in the auxiliary heat and temperature control mechanism 100.

[0040] The auxiliary heat control mechanism 100 includes a base 110, a fastener 120, a glass plate 130, a scale glass plate 140 and a heat conduction nozzle 150. The sample clamping mechanism 200 includes a column 210, a scale ruler 220, a screw barrel 230, a lifting pad 240, a beam frame 250, an insertion rod 260, a screw 270, a top plate 280 and a pressing piece 290. The lifting mechanism 300 includes a base 310, a limiting outer frame 320, a support rod 330, a combined weight 340 and a threaded kit 350. The protective mechanism 400 includes a sealing shield 410, a pad 420, a hydraulic rod 430, a positioning sleeve 440, a vertical rod 450 and a cross-sectional pressing block 460.

[0041] Specifically, three fasteners 120 are fixed on the outer end of the base 110, two glass plates 130 are fixedly installed in two vertical plates in the middle of the top surface of the base 110, two scale glass plates 140 are installed in the vertical plates on both sides of the top surface of the base 110, the heat conduction nozzle 150 is fixedly installed at the bottom of the base 110, the column 210 is fixed to the base 110 by bolts, two scale rulers 220 are fixedly installed on the outer wall of the column 210, the screw barrel 230 is fixed in the vertical hole at the top of the column 210 by bolts, the lifting pad 240 is movably installed in the end head at the top of the column 210, the beam frame 250 is fixedly installed on the lifting pad 240, the insertion rod 260 is connected to the end tube in the middle of the beam frame 250 by a tension spring, the screw rod 270 is movably installed in the screw barrel 230, and the top plate 280 is movably installed in the screw barrel 230. 270, the pressing piece 290 is connected to the top plate 280 by means of a sub-spring, the three bases 310 are respectively installed on one side of the bottom of the base 110, the three limiting outer frames 320 are fixedly installed on the other side of the bottom of the base 110, the support rod 330 is movably installed in the limiting outer frame 320, the combined weight 340 is movably installed on the bottom end of the support rod 330, the threaded kit 350 is movably installed on the top end of the support rod 330, the vertical rod 450 is threadedly connected to the outer end of the threaded kit 350, the positioning sleeve 440 is movably installed on the outside of the vertical rod 450, the sealing shield 410 is fixedly installed on the outside of the positioning sleeve 440, the cross-section pressing block 460 is installed on the bottom end of the vertical rod 450, the cushion block 420 is fixedly installed on the outer end of the sealing shield 410, and the hydraulic rod 430 is connected to the fastener 120.

[0042] A heat-conducting nozzle 150 for transmitting heat energy is installed at the bottom of the base 110, and three groups of sample clamping mechanisms 200 for suspending and clamping three plastic samples are installed on the top of the base 110. When the three sealing shields 410 are encapsulated in the three gaps at the top of the base 110, the base 110 and the three sealing shields 410 will form a structure for thermal deformation detection of the three plastic samples. At this time, the top surfaces of the three plastic samples will be controlled in a uniform horizontal state. As the heat energy in the three gaps at the top of the base 110 increases, the experimenter can By comparing the two scale glass plates 140, the amplitude changes of the three suspended plastic samples after being heated and deformed can be visually observed, so as to facilitate the experimenters to test different plastic samples. At the same time, the top of the vertical rod 450 is fixedly connected with the top of the support rod 330 by using the threaded kit 350. The bottom end of the support rod 330 is movably installed in the internal cavity of the limiting outer frame 320. When the combined weight 340 is applied to it, it will drive the cross-sectional pressure block 460 to apply gradual pressure to the plastic sample with a specified deformation, so as to facilitate the experimenters to test the strength of the plastic sample after thermoplasticization. Embodiment 2:

[0043] Combination Figure 3-Figure 7 As shown, on the basis of the first embodiment, rectangular notches are provided in the four vertical plates at the top of the base 110, symmetrically distributed grooves are provided on both sides of the top of the base 110, and screw holes are provided on the inner sides of the grooves, three heat release tubes of equal specifications are installed on the top of the heat conduction nozzle 150, and the ends of the three heat release tubes are respectively inserted into the gap between two adjacent vertical plates at the top of the base 110, and vertical rails clamped on the sides of the vertical plates at the top of the base 110 are provided on the sides of the plates at both ends of the sealing shield 410.

[0044] By installing four equally spaced vertical plates on the top of the base 110, and using a plurality of bolts to fix three symmetrically distributed groups of columns 210 in the rectangular notch on the top of the base 110, the three symmetrically distributed groups of columns 210 can suspend the three plastic samples in a uniform horizontal state. At this time, the top surfaces of the three plastic samples will be level, and the three heat-releasing conduits on the top of the heat-conducting nozzle 150 are respectively inserted into the gaps between two adjacent vertical plates. At this time, the three heat-releasing conduits can continuously deliver heat energy to the middle of the ground of the plastic samples. At the same time, three sealing shields 410 are movably installed in the gaps between the four vertical plates on the top of the base 110. The three assembled sealing shields 410 can form three independent sealed cavities with the four vertical plates, thereby facilitating the detection test of heat deformation of the three suspended plastic samples, while reducing the interference of external humidity and other factors on the three samples, thereby facilitating the experimenter's observation of the deformation amplitude of the samples. Embodiment three:

[0045] Combination Fig. 9 and Fig.10 As shown, on the basis of the first embodiment, an inwardly recessed hole groove is opened in the end of the top of the column 210, and the lifting pad 240 is composed of two U-shaped brackets and a pad block adapted to the hole groove, and a T-shaped slider is installed on the inner side of the U-shaped bracket, and a thin sheet pointing to the external scale of the scale ruler 220 is installed at the end of the U-shaped bracket away from the pad block.

[0046] The insertion rod 260 is used to control the positioning of the combined rear beam frame 250 and the lifting pad 240 along the column 210. As the pad inside the lifting pad 240 bears the plastic samples of different thicknesses, the elastic pressure-applying pressing piece 290 clamps the original top, and the thin piece installed at one end of the U-shaped bracket is lifted along the external scale of the scale ruler 220, it can effectively ensure that the device can effectively regulate the flatness of the plastic sample after thermal deformation. Embodiment 4:

[0047] Combination Figure 3-Figure 5 As shown, on the basis of the first embodiment, a cylindrical cavity is provided inside the limiting outer frame 320, and a limiting groove for guiding the bottom end of the strut 330 is provided on the outer wall of the vertical tube inside the limiting outer frame 320, and a guide rod inserted into the combined weight 340 is installed at the bottom end of the strut 330, and a circular gasket is installed on the guide rod.

[0048] By opening a cylindrical cavity inside the limiting outer frame 320, and movably installing the bottom end of the support rod 330 inside the limiting outer frame 320, the guide rod at the bottom end of the support rod 330 will penetrate to the outside of the limiting slot, and the combined weight 340 can be selectively placed on the guide rod at the bottom of the support rod 330, thereby facilitating the gradual pressurization deformation monitoring of the three plastic samples clamped subsequently.

[0049] The working principle and use process of the present invention are as follows: the lifting pad 240 is movably installed in the vertical hole at the top of the base 310 by bolts in advance, and then the two scale rulers 220 are fixed on the outer wall of the column 210, and then the assembled lifting pad 240 is movably installed on the column 210. At this time, the two T-shaped sliders installed on the outer frames at both ends of the lifting pad 240 will be movably installed in the slide grooves on both sides of the column 210 respectively, and then the two outer frames in the lifting pad 240 are fixedly assembled by the beam frame 250, and the plug rod 260 connected to the end tube in the middle of the beam frame 250 by the tension spring can be moved along the end of the outer side of the column 210. The holes are positioned and inserted, and then the pressing piece 290 is connected to the rectangular cavity inside the top plate 280 by using the sub-spring, and then the screw rod 270 is movably installed inside the top plate 280. At this time, the bottom end of the screw rod 270 is threadedly connected to the inside of the screw barrel 230. At this time, the assembled top plate 280 will be combined with the port on the top of the column 210 to form a U-shaped clamping groove. At this time, the assembled U-shaped clamping groove will respectively position and clamp the two ends of the plastic samples of different sizes, and then use multiple bolts to fix the bottom ends of multiple columns 210 in the grooves on the inner side of the base 110. Then the experimenter needs to separate them. The plurality of insert rods 260 are adjusted separately until the plurality of lifting pads 240 position and clamp the plastic samples of different sizes, until the three adjacent groups of columns 210 hold the three plastic samples of different sizes in suspension, at which time the three plastic samples tend to be horizontally distributed under the action of the plurality of lifting pads 240 and the plurality of pressing sheets 290, and the top surfaces of the three plastic samples are leveled in a horizontal state, when the hydraulic rod 430 in operation drives the three sealing shields 410 to descend along the inner side of the base 110, until the three sealing shields 410 seal the three gaps of the base 110, the experimenter It is necessary to assemble three weights of the same specification on the end columns at the bottom ends of the three support rods 330 respectively. At this time, the support rods 330 can apply pressure to the middle part of the plastic sample against the cross-section pressure block 460 fixed at the bottom end of the vertical rod 450. At this time, the three samples can be subjected to thermal deformation detection under the same pressure and the same temperature. The experimenter can observe the two scale glass plates 140 in the slots at both ends of the base 110, and compare the curvature of the thermal deformation of the three plastic samples with the scales on the scale glass plates 140, so as to facilitate the experimenter to intuitively observe the state of the three plastic samples of different sizes after thermal deformation.

[0050] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A plastic particle thermal deformation detection device, characterized in that: It comprises an auxiliary heat and temperature control mechanism (100), a sample clamping mechanism (200) installed on the auxiliary heat and temperature control mechanism (100), a lifting mechanism (300) installed on the auxiliary heat and temperature control mechanism (100), and a protection mechanism (400) installed on the lifting mechanism (300) and located inside the auxiliary heat and temperature control mechanism (100); The auxiliary heat temperature control mechanism (100) comprises a base (110), three fasteners (120) fixed to the outer end of the base (110), two glass plates (130) fixedly installed in two vertical plates in the middle of the top surface of the base (110), two scale glass plates (140) installed in the vertical plates on both sides of the top surface of the base (110), and a heat conduction nozzle (150) fixedly installed at the bottom of the base (110); The sample clamping mechanism (200) comprises a column (210) fixed on a base (110) by means of bolts, two scale rulers (220) fixedly mounted on the outer wall of the column (210), a screw barrel (230) fixedly mounted in a vertical hole at the top of the column (210) by means of bolts, a lifting pad (240) movably mounted in the top end of the column (210), a beam frame (250) fixedly mounted on the lifting pad (240), an insertion rod (260) connected to the middle end tube of the beam frame (250) by means of a tension spring, a screw rod (270) movably mounted in the screw barrel (230), a top plate (280) movably mounted outside the screw rod (270), and a pressing plate (290) connected to the top plate (280) by means of a sub-spring; The lifting mechanism (300) comprises three bases (310) respectively mounted on one side of the bottom of the base (110), three position limiting outer frames (320) fixedly mounted on the other side of the bottom of the base (110), a support rod (330) movably mounted in the position limiting outer frames (320), a combined weight (340) movably mounted on the bottom end of the support rod (330), and a threaded sleeve (350) movably mounted on the top end of the support rod (330); The protection mechanism (400) comprises a vertical rod (450) threadedly connected to the outer end of the threaded sleeve (350), a positioning sleeve (440) movably mounted on the outside of the vertical rod (450), a sealing shield (410) fixedly mounted on the outside of the positioning sleeve (440), a cross-sectional pressing block (460) mounted on the bottom end of the vertical rod (450), a cushion block (420) fixedly mounted on the outer end of the sealing shield (410), and a hydraulic rod (430) connected to the inside of the fastener (120); The top end of the vertical rod (450) is fixedly connected to the top end of the support rod (330) via a threaded sleeve (350); The plurality of insert rods (260) are adjusted respectively until the plurality of lifting pads (240) position and clamp the plastic samples of different sizes, and the three adjacent groups of columns (210) will suspend and clamp the three plastic samples of different sizes. The three plastic samples tend to be horizontally distributed under the action of the plurality of lifting pads (240) and the plurality of pressing sheets (290), and the top surfaces of the three plastic samples are flat along the horizontal state. When the hydraulic rod (430) in the operating state drives the three sealing shields (410) to descend along the inner side of the base (110), until the three sealing shields (410) After sealing the three gaps of the base (110), three weights of the same specification are respectively mounted on the end columns at the bottom ends of the three support rods (330). The support rods (330) drive the cross-section pressing block (460) fixed at the bottom ends of the vertical rods (450) to apply pressure to the middle of the plastic sample. The two scale glass plates (140) in the notches at both ends of the base (110) are used for observation. By comparing the bending degrees of the thermal deformation of the three plastic samples with the scales on the scale glass plates (140), the states of the three plastic samples of different sizes after thermal deformation are visually observed.

2. A plastic particle thermal deformation detection device according to claim 1, characterized in that: Rectangular notches are provided in the four vertical plates at the top of the base (110), symmetrically distributed grooves are provided on both sides of the top of the base (110), and screw holes are provided inside the grooves.

3. A plastic particle thermal deformation detection device according to claim 1, characterized in that: Three heat-releasing pipes of equal specifications are installed on the top of the heat-conducting nozzle (150), and the ends of the three heat-releasing pipes respectively penetrate into the gap between two adjacent vertical plates on the top of the base (110).

4. A plastic particle thermal deformation detection device according to claim 1, characterized in that: An inwardly recessed hole groove is provided in the end of the top of the column (210), and the lifting pad (240) is composed of two U-shaped brackets and a pad adapted to the hole groove, and a T-shaped slider is installed on the inner side of the U-shaped bracket.

5. A plastic particle thermal deformation detection device according to claim 4, characterized in that: A thin sheet pointing to the outer scale of the scale ruler (220) is installed at one end of the U-shaped bracket away from the pad.

6. A plastic particle thermal deformation detection device according to claim 1, characterized in that: A cylindrical cavity is provided inside the position-limiting outer frame (320), and a position-limiting notch for guiding the bottom end of the support rod (330) is provided on the outer wall of the vertical tube inside the position-limiting outer frame (320).

7. A plastic particle thermal deformation detection device according to claim 1, characterized in that: A guide rod plugged into the combined weight (340) is installed at the bottom end of the support rod (330), and a circular gasket is installed on the guide rod.

8. A plastic particle thermal deformation detection device according to claim 1, characterized in that: Vertical rails are provided on the side edges of the plates at both ends of the sealing shield (410) and are clamped on the side edges of the vertical plates at the top of the base (110).

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