A device for testing the flow properties of polymer materials in hot melt state

Abstract

The present invention relates to a polymer material detection device, and in particular to a polymer material hot melt state flow performance detection device, comprising a detection table, the detection table is provided with an inclined surface, an inclined pipe is located at the inclined surface, the upper end of the inclined pipe is connected to a placement tube, the lower end of the inclined pipe is connected to a recovery tube, the placement tube and the recovery tube are respectively fixed to the upper and lower ends of the detection table, a constant temperature plate heats the placement tube, the inclined pipe and the recovery tube, and also comprises a hot melt mechanism and an image capturer, the hot melt mechanism is composed of a placement unit and a recovery unit, the placement unit is composed of a synchronous rotation component and a material tube, the material tube is placed in the placement tube, the side wall of the material tube is provided with an overflow hole that can be connected to the placement tube, and the synchronous rotation component drives the material tube to rotate. An inclined pipe is provided to supply hot melt state polymer material for fluidity display, and the displacement data of the hot melt state polymer material per unit time can be intuitively and accurately obtained through the image capturer.

Description

Technical Field

[0001] The invention relates to a polymer material detection device, in particular to a polymer material hot-melt state flow performance detection device. Background Art

[0002] Testing the hot melt properties of polymer materials is a crucial evaluation task in materials science. It is directly related to the performance and application effect of materials in hot melt processing, molding, coating, bonding and other processes. Hot melt performance refers to the ability of a material to gradually transform from a solid state to a viscous state with fluidity due to the intensified movement of its molecular segments under heating conditions. Evaluating this performance is crucial to ensuring the stability of the material during processing and the quality of the final product.

[0003] At present, the main method for testing the hot melt properties of polymer materials is to heat the material to a certain temperature and measure its flow rate to determine its hot melt properties. This testing method usually relies on special equipment such as rheometers or viscometers to observe the flow behavior of the material under set conditions of temperature, pressure and shear rate, such as changes in parameters such as viscosity and flow index. The changes in these parameters can directly reflect the fluidity and hot melt state of the material under heating conditions, and then evaluate its hot melt properties.

[0004] However, during the operation of the existing detection device, the staff needs to repeatedly adjust the position of the insertion rod to perform accurate measurement, which is very cumbersome. Therefore, a detection device is designed that can observe the hot melt effect of polymer materials intuitively. Summary of the invention

[0005] In order to overcome the shortcomings of existing devices for detecting the flow properties of polymer materials in a hot-melt state that the operation is too complicated and the detection purpose cannot be achieved intuitively, the present invention provides a device for detecting the flow properties of polymer materials in a hot-melt state.

[0006] A device for detecting the flow properties of a polymer material in a hot melt state, comprising a detection platform, the detection platform is provided with an inclined surface, an inclined pipe is located at the inclined surface, the upper end of the inclined pipe is connected to a placement tube, the lower end of the inclined pipe is connected to a recovery tube, the placement tube and the recovery tube are respectively fixed to the upper and lower ends of the detection platform, a constant temperature plate heats the placement tube, the inclined pipe and the recovery tube, and also comprises a hot melt mechanism and an image capturer, the hot melt mechanism is composed of a placement unit and a recovery unit, the placement unit is composed of a synchronous rotation component and a material tube, the material tube is placed in the placement tube, the material tube is provided with a sealing cover, a rotatable control ring is provided in the placement tube, the material tube is fixed in the control ring by a spline, and an overflow port that can be connected to the placement tube is opened on the side wall of the material tube The flow hole and the synchronous rotating assembly drive the material barrel to rotate to control the high polymer material in the material barrel to flow into the inclined pipe after hot melting. The recovery unit is composed of a guide barrel and a card block. The guide barrel is slidably embedded in the recovery barrel and fixed by the card block. A rotating handle is provided at the bottom of the guide barrel. The rotating handle can contact and push the card block to move to unlock the guide barrel. The guide barrel is used to hold the hot-melt high polymer material left by the inclined pipe. The image capturer is connected to the detection table and is located above the inclined pipe. When the hot-melt high polymer material in the material barrel flows downward through the inclined pipe, the image capturer can accurately calculate the moving distance of the high polymer material within a specified time, thereby acquiring data on the fluidity of the high polymer material in the hot-melt state.

[0007] Furthermore, at least two groups of placement cylinders, oblique pipelines and recovery cylinders are provided.

[0008] Furthermore, a scale plate is provided on the detection platform, and the scale plate is located at a corresponding position of the inclined pipeline.

[0009] Furthermore, an observation window made of a transparent acrylic plate is provided on the oblique pipe.

[0010] Furthermore, the image capture device is connected to the detection platform via a bracket, and the bracket can be moved and fixed in the detection platform.

[0011] Furthermore, a pressurizing mechanism is included, which is composed of a pump, an air pipe and a pressure gauge. The pump is fixed in the test bench, and the pump is connected to the recovery cylinder through the air pipe. A pressure gauge is arranged in the air pipe.

[0012] Furthermore, rubber rings are provided on the sides of the material cylinder and the material guiding cylinder. The provision of the rubber rings can improve the sealing between the placing cylinder and the material cylinder, and between the recovery cylinder and the material guiding cylinder.

[0013] Furthermore, it also includes a foot, which is rotatably connected to the bottom of the inspection platform, and a worm wheel is rotatably connected to the bottom of the inspection platform. The outside of the foot is provided with a thread, and the worm wheel is provided with an internal thread and is rotatably connected to the outside of the foot. The worm is rotatably connected to the bottom of the inspection platform, and the worm wheel can be driven to rotate by rotating the worm, and the worm wheel drives the foot to adjust its height through the internal thread.

[0014] The beneficial effects of the present invention are as follows: 1. An inclined pipeline is provided to supply hot-melt polymer materials for fluidity display. The displacement data of the hot-melt polymer materials per unit time can be acquired intuitively and accurately through an image capturer. The operation is simple and scientific, and the performance of the polymer materials can be accurately determined in a digital manner.

[0015] 2. A pressurizing mechanism is provided, which can provide pressure condition changes for the test of the flow performance of the polymer material in the hot melt state, thereby increasing the types of operable experiments of the device and improving the test quality of the flow performance of the polymer material in the hot melt state.

[0016] 3. Equipped with a take-out material barrel and a material guide barrel, it reduces the difficulty of cleaning the experimental equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of the placement cylinder, the oblique pipeline and the recovery cylinder of the present invention.

[0019] Figure 3 This is a detailed view of the three-dimensional structure of location A of the present invention.

[0020] Figure 4 This is a three-dimensional structural separation diagram of the control ring and the material barrel of the present invention.

[0021] Figure 5 It is a schematic diagram of the three-dimensional structure of the constant temperature plate and the material guide cylinder of the present invention.

[0022] Figure 6 This is a detailed view of the three-dimensional structure of location B of the present invention.

[0023] Figure 7 It is a three-dimensional structural cross-sectional view of the recovery tube of the present invention.

[0024] Figure 8 It is a schematic diagram of the three-dimensional structure of the pressurizing mechanism of the present invention.

[0025] Fig. 9 It is a schematic diagram of the three-dimensional structure of the foot of the present invention.

[0026] Figure numbers: 1_testing table, 101_placing cylinder, 102_inclined pipeline, 103_recovery cylinder, 104_constant temperature plate, 2_control ring, 3_material cylinder, 301_sealing cover, 302_overflow hole, 4_synchronous rotation component, 5_material guide cylinder, 501_rotating handle, 502_block, 6_image capturer, 7_scale plate, 8_pump, 9_air guide tube, 10_pressure gauge, 11_foot, 12_worm gear, 13_worm. DETAILED DESCRIPTION

[0027] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0028] Embodiment: A device for detecting the flow properties of a polymer material in a hot melt state, such as Figure 1-Figure 7As shown, the detection platform 1 is provided with an inclined surface, the inclined pipe 102 is located at the inclined surface, a scale plate 7 is provided on the detection platform 1, and the scale plate 7 is located at the corresponding position of the inclined pipe 102. An observation window made of a transparent acrylic plate is provided on the inclined pipe 102. The scale plate 7 can assist the image capturer 6 to facilitate data collection by the staff. The upper end of the inclined pipe 102 is connected to a placement cylinder 101, and the lower end of the inclined pipe 102 is connected to a recovery cylinder 103. The placement cylinder 101 and the recovery cylinder 103 are respectively fixed at the upper and lower ends of the detection platform 1, and the constant temperature plate 104 heats the placement cylinder 101, the inclined pipe 102 and the recovery cylinder 103. In this embodiment, three groups of placement cylinders 101, inclined pipes 10 2 and a recovery cylinder 103, and also includes a hot melt mechanism and an image capturer 6, the hot melt mechanism is composed of a placement unit and a recovery unit, the placement unit is composed of a synchronous rotation component 4 and a material cylinder 3, the material cylinder 3 is placed in the placement cylinder 101, the material cylinder 3 is equipped with a sealing cover 301, a rotatable control ring 2 is arranged in the placement cylinder 101, the material cylinder 3 is clamped in the control ring 2 through a spline, and an overflow hole 302 that can be connected to the placement cylinder 101 is opened on the side wall of the material cylinder 3, the synchronous rotation component 4 drives the material cylinder 3 to rotate to control the high polymer material in the material cylinder 3 to flow into the oblique pipe 102 after hot melting, and specifically, the synchronous rotation component 4 is composed of an electric push rod and a push rod, and the electric push rod is fixed to the upper end of the detection table 1 by bolts. The telescopic end of the electric push rod is connected with a push rod, a convex shaft is arranged on the push rod, a grooved convex ring is arranged on the side of the control ring 2, and the convex ring is slidably sleeved on the convex shaft. By turning on the electric push rod, the push rod is driven to move horizontally, and the push rod will drive the control ring 2 to rotate through the convex ring, and then drive the material barrel 3 to rotate. The recovery unit is composed of a guide barrel 5 and a block 502. The guide barrel 5 is slidably embedded in the recovery barrel 103 and fixed by the block 502. The guide barrel 5 is used to hold the hot-melt polymer material left by the oblique pipe 102. The block 502 is connected to the bottom of the detection table 1 through a reset spring. The opposite side of the block 502 is provided with an L-shaped groove, and the L-shaped groove can be embedded in the bottom of the guide barrel 5, so that it can The material guide cylinder 5 is fixed in the recovery cylinder 103. A rotating handle 501 is provided at the bottom of the material guide cylinder 5. The rotating handle 501 can contact and push the block 502 to move centrifugally. The block 502 is separated from the bottom of the material guide cylinder 5 after centrifugal movement, thereby releasing the limit fixation of the material guide cylinder 5. The staff can also easily take out the material guide cylinder 5 to recycle the polymer material. The image capturer 6 is connected to the detection table 1 and is located above the inclined pipe 102. When the hot-melt polymer material in the material cylinder 3 flows downward through the inclined pipe 102, the image capturer 6 can accurately calculate the moving distance of the polymer material within a specified time, thereby acquiring data on the fluidity of the polymer material in a hot-melt state.

[0029] like Figure 1As shown, the image capturer 6 is connected to the detection platform 1 through a bracket, so that the image capturer 6 can be moved and fixed in the detection platform 1, specifically, it is fixed by fixing bolts. Because the fluidity of different polymer materials in the hot melt state is different, for detection experiments with lower fluidity, the bracket can be slid above the detection platform 1 and then fixed by fixing bolts. At this time, the capture range of the image capturer 6 is located on the upper part of the inclined pipe 102, so that the detection range of the image capturer 6 can be accurately determined, thereby improving the data acquisition accuracy.

[0030] like Figure 8 As shown, a pressurizing mechanism is also included, which is composed of a pump 8, an air pipe 9 and a pressure gauge 10. The pump 8 is fixed in the test bench 1, and the pump 8 is connected to the recovery cylinder 103 through the air pipe 9. The air pipe 9 is provided with a pressure gauge 10. Rubber rings are provided on the sides of the material cylinder 3 and the material guide cylinder 5. The rubber rings effectively improve the sealing between the placement cylinder 101 and the material cylinder 3, and between the recovery cylinder 103 and the material guide cylinder 5. The pump 8 is provided for performing specific experiments, such as the flow performance detection of the hot-melt state of the polymer material under a pressurized environment, and the pressure gauge 10 can standardize the experimental peripheral conditions, such as the flow performance detection of the hot-melt state of the polymer material under three standard atmospheric pressure environments, or the specified performance of the hot-melt state of the polymer material under a vacuum state.

[0031] like Fig. 9 As shown, it also includes a foot 11, which is slidably connected to the bottom of the test platform 1, and a worm wheel 12 is rotatably connected to the bottom of the test platform 1. The outside of the foot 11 is provided with a thread, and the worm wheel 12 is provided with an internal thread and is threadedly connected to the outside of the foot 11. The worm 13 is rotatably connected to the bottom of the test platform 1. The worm wheel 12 can be driven to rotate by rotating the worm 13, and the worm wheel 12 drives the foot 11 to adjust its height through the internal thread. The foot 11 with adjustable height can quickly level the test platform 1, so that the bottom of the test platform 1 is in a horizontal state, and the placement tube 101 will be at the same height, reducing the influence of height difference variables on the fluidity detection of the hot melt state of the polymer material.

[0032] Working principle of the embodiment of the present invention: This embodiment is provided with three groups of placement cylinders 101, oblique pipes 102 and recovery cylinders 103, so as to conduct comparative experiments of the same type of polymer materials and control experiments of different types of polymer materials. The polymer material is placed in the material cylinder 3, and then the material cylinder 3 is placed in the placement cylinder 101. The material cylinder 3 will be connected to the control ring 2 through the spline, and then the constant temperature plate 104 is turned on to heat the placement cylinder 101, the oblique pipe 102 and the recovery cylinder 103 synchronously. When the polymer material is heated from a solid state to a hot melt liquid state, the control ring 2 is driven to rotate through the synchronous rotation component 4. Since the material cylinder 3 is provided with an overflow hole 302, the overflow hole 302 can overlap with the placement cylinder 101 and the interface of the oblique pipe 102, so after the material barrel 3 is rotated, the hot-melt polymer material can be introduced into the oblique pipe 102, and the synchronous rotation component 4 is set to unify the variables, so that the start time of the export of the three groups of experiments is consistent, and then the hot-melt polymer material in the oblique pipe 102 is displaced or observed by the image capture device 6, such as the flow rate of the hot-melt polymer material in the specified time, or the flow shape of the hot-melt polymer material, etc. The hot-melt polymer material will eventually flow into the recovery barrel 103, and then be uniformly collected and processed by the material guide barrel 5. The material guide barrel 5 can be taken out for cleaning by turning the handle. When the oblique pipe 102 needs to be cleaned, the material barrel 3 is taken out from the placement barrel 101, and then the polymer material in the oblique pipe 102 is cleaned from the upper end of the oblique pipe 102 through the long rod.

[0033] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A device for testing the flow properties of a polymer material in a hot melt state, comprising a testing platform (1), a placing cylinder (101) connected to the upper end of an inclined pipe (102), a recovery cylinder (103) connected to the lower end of the inclined pipe (102), the placing cylinder (101) and the recovery cylinder (103) being fixed to the upper and lower ends of the testing platform (1), respectively, a constant temperature plate (104) heating the placing cylinder (101), the inclined pipe (102) and the recovery cylinder (103), characterized in that: The invention also includes a hot melt mechanism and an image capture device (6). The hot melt mechanism is composed of a placement unit and a recovery unit. The placement unit is composed of a synchronous rotation component (4) and a material barrel (3). The material barrel (3) is placed in the placement barrel (101). The side wall of the material barrel (3) is provided with an overflow hole (302) that can be connected to the placement barrel (101). The material barrel (3) is provided with a sealing cover (301). A rotatable control ring (2) is provided in the placement barrel (101). The material barrel (3) is clamped in the control ring (2) through a spline. The synchronous rotation component (4) drives the material barrel (3) to rotate. The synchronous rotation component (4) is composed of an electric push rod and a push rod. The electric push rod is fixed to the upper end of the detection table (1) by bolts. The telescopic end of the electric push rod is connected to the push rod. The push rod is provided with a convex shaft. The control ring ( 2) A grooved convex ring is provided on the side, and the convex ring is slidably mounted on the convex shaft. By turning on the electric push rod, the push rod is driven to move horizontally. The push rod drives the control ring (2) to rotate through the convex ring, and then drives the material barrel (3) to rotate. The recovery unit is composed of a material guide barrel (5) and a clamping block (502). The material guide barrel (5) is slidably embedded in the recovery barrel (103) and fixed by the clamping block (502). The image capture device (6) is connected to the detection platform (1) and is located above the oblique pipeline (102); and also includes a pressurizing mechanism, which is composed of a pump (8), an air guide pipe (9) and a pressure gauge (10). The pump (8) is fixed in the detection platform (1), and the pump (8) is connected to the recovery barrel (103) through the air guide pipe (9). The air guide pipe (9) is provided with a pressure gauge (10).

2. A device for detecting the flow properties of polymer materials in hot melt state according to claim 1, characterized in that: At least two groups of placement cylinders (101), oblique pipes (102) and recovery cylinders (103) are provided.

3. A device for detecting the flow properties of polymer materials in hot melt state according to claim 2, characterized in that: A scale plate (7) is provided on the detection platform (1), and the scale plate (7) is located at a corresponding position of the inclined pipeline (102).

4. A device for detecting the flow properties of polymer materials in hot melt state according to claim 3, characterized in that: An observation window is provided on the oblique pipeline (102).

5. A device for detecting the flow properties of polymer materials in hot melt state according to claim 4, characterized in that: The image capture device (6) is connected to the detection platform (1) via a bracket, and the bracket can be moved and fixed inside the detection platform (1).

6. A device for detecting the flow properties of polymer materials in hot melt state according to claim 5, characterized in that: Rubber rings are provided on the sides of the material cylinder (3) and the material guide cylinder (5). The provision of the rubber rings can improve the sealing performance between the placement cylinder (101) and the material cylinder (3), and between the recovery cylinder (103) and the material guide cylinder (5).

7. A device for detecting the flow properties of polymer materials in hot melt state according to claim 6, characterized in that: It also includes a foot (11), which is rotatably connected to the bottom of the detection platform (1).

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