A plastic bucket heat distortion test device

Abstract

The present application discloses a thermal deformation test device for a plastic barrel, which belongs to the technical field of thermal deformation test. It mainly includes a workbench; a heating component, the heating component has a heating box for heating the plastic barrel, and a top plate for sealing the heating box; a first detection component, a second detection component, the second detection component is mounted on the top plate, and the second detection component includes: a moving mechanism, the moving mechanism is mounted on the top plate; a sealing plate, the sealing plate is mounted on the top plate; a placing mechanism, the placing mechanism is mounted on the sealing plate; a sleeve mechanism, the sleeve mechanism is mounted on the lower end of the sealing plate; a control mechanism, the control mechanism is mounted on the lower end of the sealing plate. The present application discloses a thermal deformation test device for a plastic barrel, which performs thermal deformation detection on the plastic barrel under different heating conditions through the first detection component and the second detection component, and the control mechanism controls the angle of the plastic barrel so that the residual liquid can be discharged when the plastic barrel leaves the hot box.

Description

Technical Field

[0001] The present application relates to the technical field of thermal deformation testing, and in particular to a thermal deformation testing device for a plastic barrel. Background Art

[0002] Plastic materials will soften when heated. The heat deformation temperature is a parameter that expresses the relationship between the heat and deformation of the object being tested. It is a measure of the heat resistance of plastic materials. In the actual experiment, a certain load is applied to the material sample, and the temperature is increased at a certain speed. When the specified deformation is reached, the temperature corresponding to the temperature is the heat deformation temperature.

[0003] Plastic barrels may be exposed to high temperature when in use, such as during transportation or storage, or even in certain industrial processes. Therefore, in this case, understanding the deformation behavior of plastic barrels under high temperature conditions is crucial to ensure their stability and functionality. At the same time, checking the performance of plastic barrels under high temperature conditions can reduce the risk of problems in actual use of the product and improve product quality and reliability.

[0004] However, when using the existing thermal deformation test device, the plastic barrel sample is placed in an experimental device such as a hot box or a hot water bath to ensure that the experimental device can accurately control the temperature, and then continuously heated for a period of time to simulate actual use; during the experiment, the deformation of the plastic barrel is regularly observed, and the temperature change and duration during the experiment are recorded, so as to analyze the thermal deformation performance of the plastic barrel under high temperature conditions based on the experimental data;

[0005] However, when conducting thermal deformation tests on plastic barrel samples, the thermal deformation parameters of the plastic barrel are generally obtained by conducting thermal deformation tests on the outer wall of the plastic barrel, but it is difficult to conduct separate inner wall, outer wall and inner and outer wall tests on the plastic barrel samples. As a result, it is impossible to obtain the thermal deformation of the plastic barrel under different conditions when it is heated in different ways during actual use, and further, it is impossible to have a more comprehensive understanding of the overall performance of the plastic barrel when heated, and whether there are different effects between the thermal deformation caused by heating the inner and outer surfaces. Therefore, it is necessary to provide a plastic barrel thermal deformation test device to solve the above problems.

[0006] It should be noted that the above information disclosed in this background technology section is only for understanding the background technology of the present application concept, and therefore, it may contain information that does not constitute the prior art. Summary of the invention

[0007] Based on the above problems existing in the prior art, the problem to be solved by the present application is: to provide a plastic barrel thermal deformation testing device, which can test different deformation conditions of the plastic barrel caused by different heating methods.

[0008] The technical solution adopted by the present application to solve its technical problem is: a plastic barrel thermal deformation test device, comprising a workbench, the workbench has a placement plate; a heating component, the heating component is installed on the placement plate, the heating component has a heating box for heating the plastic barrel, and a top plate for sealing the heating box; a first detection component, the first detection component is installed on the top plate, the first detection component is used to detect the thermal deformation of the plastic barrel when the outer wall is heated; a second detection component, the second detection component is installed on the top plate, the second detection component is used to detect the thermal deformation of the plastic barrel when the inner and outer walls are heated The second detection component includes: a moving mechanism, which is installed on the top plate and is used to place the plastic barrel into the heating box; a sealing plate, which is installed on the top plate; a placing mechanism, which is installed on the sealing plate; a sleeve mechanism, which is installed on the lower end of the sealing plate; a control mechanism, which is installed on the lower end of the sealing plate; wherein: the first detection component and the second detection component are suitable for performing thermal deformation detection on the plastic barrel under different heating conditions, and the control mechanism is suitable for controlling the angle of the plastic barrel so as to drain out the residual liquid when the plastic barrel leaves the heating box.

[0009] Further, the placement mechanism includes two groups of first cylinders installed on the sealing plate, four groups of penetration rods are installed on the sealing plate, one end of the four groups of penetration rods is installed with a support plate, the support plate has two groups of protruding plates, two groups of support plates are installed on the support plate, one group of the support plates is installed with an arc pad, and a third spring is connected between the arc pad and the support plate;

[0010] The four groups of penetrating rods are sleeved with a bracket plate, the four groups of penetrating rods are sleeved with a support portion, the four groups of penetrating rods are sleeved with a first spring, the penetrating rods are sleeved with a first electromagnet, and the bracket plate is installed with a second electromagnet;

[0011] A PLC control system is installed on the workbench.

[0012] Furthermore, two groups of sliding grooves are provided on the bracket plate, four groups of fixed seats are installed on the bracket plate, two groups of connecting rods are connected between the two groups of fixed seats, two groups of sliding blocks are installed on the connecting rods, and a displacement groove adapted to the width of the sliding block is provided on the side of the bracket plate away from the sealing plate, the sliding block on the left is defined as the first sliding block, and the sliding block on the right is defined as the second sliding block, a fixed block is installed on the connecting rod, a third electromagnet is installed on the fixed block, and a fourth electromagnet is installed on the second sliding block.

[0013] Furthermore, a second spring is arranged between the four groups of sliding blocks and the inner wall of the shifting groove, the first sliding block is hinged with a first oblique rod, one end of the first oblique rod is hinged with a first connecting piece, the second sliding block is hinged with a second oblique rod, and the second oblique rod is hinged with a second connecting piece.

[0014] Furthermore, the sleeve connection mechanism includes four groups of sleeve connection half rings arranged between two groups of the first oblique rods and two groups of the second oblique rods, and the sleeve connection half rings have a protruding portion, and the protruding portion is connected to a fastener.

[0015] Furthermore, the control mechanism is installed on the bracket plate, and the control mechanism includes a control plate installed on the bracket plate, the control plate has a first slide, a T-shaped plate is installed on the second sliding block, a control rod is rotatably installed on the T-shaped plate, the control rod has a control ball, and a second slide is connected to the first slide.

[0016] Furthermore, a third slide is connected to the second slide, a first step is provided between the third slide and the second slide, a first vertex is provided at the connection between the third slide and the second slide, and a first switch is provided at the first vertex.

[0017] Furthermore, a fourth slide is connected to the third slide, a second step is provided between the fourth slide and the third slide, and a retention point is provided at the connection between the third slide and the fourth slide.

[0018] Further, the fourth slide is connected to a fifth slide, a third step is provided between the fourth slide and the fifth slide, a second vertex is provided at the connection between the fourth slide and the fifth slide, and a second switch is provided at the second vertex;

[0019] Furthermore, the fifth slide is connected to the first slide, and a transition slope is provided at the connection between the fifth slide and the first slide. The highest position of the transition slope is higher than the bottom position of the groove of the first slide and forms a fourth step. A third switch is installed on the support part.

[0020] The beneficial effect of the present application is: the present application provides a plastic barrel thermal deformation testing device, the first detection component and the second detection component perform thermal deformation detection on the plastic barrel under different heating conditions, and the control mechanism controls the angle of the plastic barrel so that the residual liquid can be discharged when the plastic barrel leaves the hot box.

[0021] In addition to the above-described purposes, features and advantages, the present application also has other purposes, features and advantages. The present application will be further described in detail with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings constituting part of the present application are used to provide a further understanding of the present application. The exemplary embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0023] Figure 1 This is an overall schematic diagram of a plastic barrel thermal deformation test device in this application;

[0024] Figure 2 for Figure 1 Schematic diagram of the structure of the stirring component and the heating component;

[0025] Figure 3 for Figure 2 A schematic diagram of the structure of the first detection component;

[0026] Figure 4 for Figure 2 A schematic diagram of the structure of the second detection component;

[0027] Figure 5 for Figure 4 An enlarged schematic diagram of region A;

[0028] Figure 6 for Figure 4 A bottom schematic diagram of the second detection component;

[0029] Figure 7 for Figure 4 A magnified schematic diagram of the middle B area;

[0030] Figure 8 for Figure 6 Enlarged schematic diagram of the middle C area;

[0031] Fig. 9 for Figure 2 Schematic diagram of the heating component structure;

[0032] Among them, the reference numerals in the figure are:

[0033] 1. Workbench; 101. Placement board;

[0034] 2. First detection assembly; 201. Sealing plate; 202. First working plate; 203. Screw rod; 204. First motor; 205. Sliding seat; 206. Connecting plate; 207. Sliding block; 208. First linear module; 209. Vertical rod; 210. Displacement sensor; 211. Weight placement plate; 212. Pressing block; 213. Support; 214. Support frame; 215. Mounting block;

[0035] 3. Second detection assembly; 301. First cylinder; 302. Through rod; 303. First spring; 304. First electromagnet; 305. Support plate; 311. Hollow groove; 312. Sliding groove; 313. Fixed seat; 314. Connecting rod; 315. Sliding block; 316. Second spring; 317. First oblique rod; 318. First connecting member; 319. Second oblique rod; 320. Second connecting member; 321. Socketed half ring; 322. Extending part ; 323, fastener; 324, fixing block; 325, third electromagnet; 326, fourth electromagnet; 327, T-shaped plate; 328, control rod; 330, control plate; 331, first slide; 332, second slide; 333, third slide; 334, retention point; 335, fourth slide; 336, fifth slide; 337, bracket plate; 338, support plate; 339, arc pad; 340, support portion; 341, third switch;

[0036] 4. The third detection component; 401. The second cylinder; 402. The barrel cover; 403. The pump body; 404. The hose; 405. The through hole;

[0037] 5. stirring assembly; 501. second motor; 502. stirring shaft; 503. stirring fan blade;

[0038] 6. Heating assembly; 601. Heating box; 602. Top plate; 603. Through groove; 604. Partition plate; 605. Oil inlet pipe. DETAILED DESCRIPTION

[0039] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0040] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0041] Embodiment 1: Figure 1-Figure 2 and Fig. 9 As shown, the present application provides a plastic barrel thermal deformation test device, comprising a workbench 1, a placement plate 101 is fixedly installed in the workbench 1, a heating component 6 is installed on the placement plate 101, and the heating component 6 is used to heat the plastic barrel;

[0042] The heating assembly 6 comprises a heating box 601 mounted on the placement plate 101, and the heating box 601 has a top plate 602. Two sets of partitions 604 are fixedly installed in the heating box 601. The two sets of partitions 604 are used to divide the heating box 601 into three groups of heating chambers. The heating chambers are used to store heat transfer oil. Fig. 9 As a reference, the three groups of heating chambers are defined as the first heating chamber, the second heating chamber and the third heating chamber from left to right;

[0043] Three groups of oil inlet pipes 605 are fixedly installed on the heating box 601, and the three groups of oil inlet pipes 605 are respectively connected to the three groups of heating chambers, and the oil level heights of the first heating chamber and the third heating chamber are the same, and the oil level height of the second heating chamber is lower than the oil level heights of the first heating chamber and the third heating chamber;

[0044] At the same time, a stirring assembly 5 is installed on the workbench 1. The stirring assembly 5 is used to stir the heat transfer oil in the three groups of heating chambers and ensure the uniformity of the oil temperature in each part. The stirring assembly 5 includes a second motor 501 fixedly installed on the workbench 1. A stirring shaft 502 is fixedly installed at the output end of the second motor 501. The stirring shaft 502 movably penetrates the two groups of partitions 604, and three groups of stirring blades 503 are fixedly installed on the stirring shaft 502. The three groups of stirring blades 503 are respectively placed in the three groups of heating chambers;

[0045] The stirring shaft 502 is adapted to rotate along with the output end of the second motor 501 to drive the stirring blades 503 to rotate and stir the heat transfer oil in the heating chamber to maintain the fluidity of the heat transfer oil;

[0046] like Figure 2-Figure 3 As shown, a first detection component 2 is installed on the top plate 602, and the first detection component 2 is used to perform thermal deformation detection on the outer wall of the plastic barrel. The first detection component 2 includes a moving mechanism installed on the top plate 602, and the moving mechanism includes a sealing plate 201 installed on the top plate 602. At the same time, a through groove 603 matching the size of the sealing plate 201 is opened on the top plate 602, and the sealing plate 201 is engaged in the through groove 603. At the same time, a first working plate 202 is installed on the top plate 602, and a second working plate is provided at the upper end of the first working plate 202;

[0047] Meanwhile, a screw rod 203 is connected between the first working plate 202 and the second working plate, and a first motor 204 is fixedly installed on the second working plate, the output end of the first motor 204 is connected to the screw rod 203, and a sliding seat 205 is threadedly connected to the screw rod 203, and the screw rod 203 is suitable for rotating with the output end of the first motor 204, so as to make the sliding seat 205 move along the linear direction of the screw rod 203;

[0048] Meanwhile, a connecting plate 206 is fixedly mounted on the sliding seat 205, and one end of the connecting plate 206 close to the top plate 602 is connected to the sealing plate 201, and a first linear module 208 is fixedly mounted on the sealing plate 201, and the first linear module 208 has two groups of straight rods (not marked in the figure), and connecting blocks (not marked in the figure) are fixedly mounted at both ends of the two groups of straight rods;

[0049] A slider 207 is slidably mounted on the two sets of straight rods. The slider 207 has a protruding end, and a mounting block 215 is sleeved on the protruding end. A displacement sensor 210 is fixedly mounted on the mounting block 215. The displacement sensor 210 has a detection end.

[0050] In the present application, a third cylinder is fixedly mounted on a set of connection blocks away from the sealing plate 201, and the output end of the third cylinder movably penetrates the connection block and is connected to the slider 207, and the slider 207 is suitable for linear movement with the output end of the third cylinder;

[0051] A vertical rod 209 is fixedly mounted on the sealing plate 201, and the displacement sensor 210 is movably sleeved on the vertical rod 209 through a mounting block 215, and the vertical rod 209 is used to limit the movement of the displacement sensor 210;

[0052] A weight placement plate 211 is interspersed and installed on the sealing plate 201 at a position just below the detection end of the displacement sensor 210. The weight placement plate 211 has an extension rod (not shown in the figure). The extension rod movably passes through the sealing plate 201, and a pressing block 212 is fixedly installed on the end of the extension rod away from the sealing plate 201.

[0053] A support mechanism is installed on the side of the sealing plate 201 away from the displacement sensor 210, and the support mechanism is used to place the plastic barrel. The support mechanism includes a support frame 214 fixedly installed on the side of the sealing plate 201 away from the displacement sensor 210, and two groups of supports 213 are fixedly installed on the support frame 214. The supports 213 have arc grooves, and the arc grooves are used to place the plastic barrels;

[0054] In summary: when testing a plastic barrel, the plastic barrel is placed on the two sets of supports 213, and then the pressing block 212 is placed on the plastic barrel, and the first motor 204 is started to drive the screw rod 203 to rotate, so as to drive the sliding seat 205 to move linearly on the screw rod 203, and then the support frame 214 and the plastic barrel can be placed in the third heating chamber in the heating box 601, and the heating box 601 is started to heat the heat transfer oil in the third heating chamber;

[0055] Then, the weight is placed on the weight placement plate 211, and then the third cylinder is started to drive the slider 207 to move downward, and the slider 207 drives the displacement sensor 210 to move downward. When the detection end of the displacement sensor 210 contacts the weight, the third cylinder continues to drive the slider 207 to move downward, so that the protruding end is away from the mounting block 215;

[0056] During the test, when the plastic barrel is deformed by heat, the pressing block 212 moves downward under the action of the weight. At this time, the pressing block 212 moves downward, and the displacement is measured and displayed by the displacement sensor 210 installed on the mounting block 215. When the displacement reaches a specified value, the temperature is recorded and the experiment ends.

[0057] After the test, the first motor 204 starts and drives the sliding seat 205 to move upward, so that the supporting mechanism and the plastic barrel can be taken out of the heating box 601. At the same time, the third cylinder resets and drives the slider 207 to move upward and connects the protruding end with the mounting block 215, thereby driving the displacement sensor 210 to rise and leave the weight.

[0058] Embodiment 2: Since the above embodiment can only perform a thermal deformation test on the outer wall of the plastic barrel, it is difficult to simultaneously test the outer wall and the inner and outer walls of the plastic barrel sample, and thus it is impossible to obtain the thermal deformation of the plastic barrel under different conditions when it is subjected to different heating methods during actual use;

[0059] In order to solve the above problems, Figure 1-Figure 4 and Figure 6 As shown, a second detection assembly 3 is installed on the top plate 602. The second detection assembly 3 has a similar structure to the first detection assembly 2. The second detection assembly 3 is the same as the first detection assembly 2 in that both have a moving mechanism, and a placing mechanism is installed on the sealing plate 201 of the second detection assembly 3. The placing mechanism includes two groups of first cylinders 301 fixedly installed on the sealing plate 201;

[0060] Four groups of penetration rods 302 are fixedly mounted on the sealing plate 201, and a support plate 305 is fixedly mounted on one end of the four groups of penetration rods 302. The support plate 305 has two groups of protruding plates, and two groups of support plates 338 are fixedly mounted on the support plate 305. The support plates 338 have arc-shaped grooves, and the groove bottom heights of the two groups of support plates 338 are different. An arc-shaped pad 339 is installed on a group of support plates 338 with a lower groove bottom height, and a third spring (not shown in the figure) is connected between the arc-shaped pad 339 and the support plate 338, and the third spring is used to provide auxiliary support for the arc-shaped pad 339;

[0061] A bracket plate 337 is movably sleeved on the four groups of penetration rods 302, and a support portion 340 is sleeved and installed on the four groups of penetration rods 302, and the support portion 340 is fixedly connected to a side of the sealing plate 201 away from the first cylinder 301, the output end of the first cylinder 301 penetrates the sealing plate 201, and the output end of the first cylinder 301 is suitable for pushing the bracket plate 337 to move linearly on the penetration rods 302, and a hollow groove 311 is opened on the bracket plate 337, and the hollow groove 311 is suitable for the pressing block 212 to pass through the bracket plate 337 and be placed on the plastic barrel;

[0062] A first spring 303 is sleeved on the four sets of penetration rods 302, one end of the first spring 303 is connected to the support portion 340, and the other end of the first spring 303 is connected to the bracket plate 337, and the first spring 303 is used to support the bracket plate 337;

[0063] At the same time, a first electromagnet 304 is sleeved on the penetration rod 302, and a second electromagnet (not shown in the figure) is fixedly installed on a side of the bracket plate 337 close to the support plate 305, and the second electromagnet is sleeved on the penetration rod 302;

[0064] like Figure 6-Figure 7 As shown, two groups of sliding grooves 312 are provided on the bracket plate 337, four groups of fixing seats 313 are fixedly installed on the side of the bracket plate 337 away from the sealing plate 201, a connecting rod 314 is connected between the two groups of fixing seats 313, two groups of sliding blocks 315 are slidably installed on the connecting rod 314, and a shifting groove (not shown in the figure) adapted to the width of the sliding block 315 is provided on the side of the bracket plate 337 away from the sealing plate 201. Figure 6 As a reference, the sliding block 315 on the left is defined as the first sliding block, and the sliding block 315 on the right is defined as the second sliding block. A fixing block 324 is fixedly installed on the engagement rod 314, a third electromagnet 325 is fixedly installed on the fixing block 324, and a fourth electromagnet 326 is fixedly installed on the second sliding block.

[0065] A second spring 316 is provided between the four sets of sliding blocks 315 and one end of the inner wall of the shifting slot, and the second spring 316 is suitable for initially limiting the position of the sliding block 315 in the shifting slot;

[0066] A first oblique rod 317 is hingedly mounted on the first sliding block, a first connecting member 318 is movably hingedly mounted at one end of the first oblique rod 317, and a second oblique rod 319 is hingedly mounted on the second sliding block, a second connecting member 320 is hingedly mounted on the second oblique rod 319, and a sleeve mechanism is provided between the two groups of first oblique rods 317 and the two groups of second oblique rods 319, the sleeve mechanism comprising four groups of sleeve semi-rings 321 provided between the two groups of first oblique rods 317 and the two groups of second oblique rods 319;

[0067] The sleeve half ring 321 has an extension portion 322, and a fastener 323 is connected to the extension portion 322. The fastener 323 is suitable for connecting two sets of sleeve half rings 321 to form a circular ring, so as to fix the plastic barrel. At the same time, the first connecting member 318 and the second connecting member 320 are fixedly connected to the fastener 323.

[0068] Here with Figure 6 As a reference, the circular ring on the left is defined as the first clamp ring, and the circular ring on the right is defined as the second clamp ring. The vertical distance between the first clamp ring and the support plate 305 is smaller than the vertical distance between the second clamp ring and the support plate 305, so that in the initial state, the plastic barrel is in an inclined state (the barrel mouth faces upward and the barrel bottom faces downward) when it is fixed by the first clamp ring and the second clamp ring.

[0069] A control system is installed on the workbench 1, and the control system is a PLC control system, and the PLC control system is used to control the above-mentioned driving device to be powered on, and control the first electromagnet 304, the second electromagnet, the third electromagnet 325 and the fourth electromagnet 326 to be powered on or off;

[0070] In summary: in the initial state, the plastic barrel is in a tilted state, and the barrel mouth of the plastic barrel is in a tilted upward state, so the barrel bottom position of the plastic barrel is lower than the barrel mouth position of the plastic barrel;

[0071] When the plastic barrel needs to be inspected, the first cylinder 301 is first started to push the support plate 337 downward. At this time, the first spring 303 is in a stretched state, and the plastic barrel moves downward synchronously with the support plate 305 under the action of the first inclined rod 317 and the second inclined rod 319;

[0072] When the bottom of the plastic barrel first abuts against a set of supporting plates 338 with a higher bottom, and due to the abutment of the supporting plates 338, the bottom of the plastic barrel is restricted and cannot move downward;

[0073] Therefore, as the first cylinder 301 continues to push the bracket plate 337 downward, the bottom of the plastic barrel is restricted, so that the inclination angle of the first inclined rod 317 changes, and then the first sliding block moves in the direction away from the barrel mouth of the plastic barrel. It should be noted that the first inclined rod 317 is in an inclined state in the initial state, and the inclination direction is: the horizontal distance between the upper end position of the first inclined rod 317 and the barrel mouth position of the plastic barrel is greater than the horizontal distance between the lower end position of the first inclined rod 317 and the barrel mouth position of the plastic barrel. Therefore, when the inclination angle of the first inclined rod 317 changes, the first sliding block moves in the direction away from the barrel mouth of the plastic barrel;

[0074] When the first sliding block moves, it will squeeze the second spring 316 connected to the first sliding block;

[0075] At the same time, as the first cylinder 301 continues to push the support plate 337 downward, the mouth of the plastic barrel simultaneously moves toward the arc-shaped pad 339 and abuts against the arc-shaped pad 339;

[0076] The second inclined rod 319 is in an inclined state in the initial state, and the inclined direction is: the horizontal distance between the upper end of the second inclined rod 319 and the bottom of the plastic barrel is greater than the horizontal distance between the lower end of the second inclined rod 319 and the bottom of the plastic barrel, so when the inclination angle of the second inclined rod 319 changes, the second sliding block moves toward the bottom of the plastic barrel;

[0077] When the first cylinder 301 continues to push the bracket plate 337 downward to the limit position, the second inclined rod 319 continues to apply pressure to the mouth of the plastic barrel, so that the third spring is compressed, and then the mouth of the plastic barrel is synchronously lowered, and finally flush with the position of the plastic barrel (horizontal state), and at the same time, the second electromagnet and the first electromagnet 304 are controlled by the PLC control system to be energized, and the second electromagnet is magnetically attracted to the first electromagnet 304;

[0078] Then, the first motor 204 is started to drive the screw rod 203 to rotate, so as to drive the sliding seat 205 to move downward and put the support plate 305 and the plastic barrel into the heat transfer oil in the first heating chamber in the heating box 601. The heat transfer oil enters the plastic barrel through the barrel opening, and then the heating box 601 is started to heat the heat transfer oil in the first heating chamber.

[0079] Then, the weight is placed on the weight placement plate 211, and then the third cylinder is started to drive the slider 207 to move downward, and the slider 207 drives the displacement sensor 210 to move downward. When the contact of the displacement sensor 210 contacts the weight, the third cylinder continues to drive the slider 207 to move downward, so that the mounting block 215 is away from the protruding end. At this time, the pressing block 212 is held on the plastic barrel by the gravity of the weight;

[0080] During the test, when the plastic barrel is deformed by heat, the pressing block 212 moves downward under the action of the weight. At this time, the pressing block 212 moves downward, and the displacement is measured and displayed by the displacement sensor 210 installed on the mounting block 215. When the displacement reaches a specified value, the temperature is recorded and the experiment ends.

[0081] After the test is finished, the first motor 204 is started to drive the sliding seat 205 to move upward, and the plastic barrel is slowly moved out of the heat transfer oil in the first heating chamber, and the first cylinder 301 is started again to reset;

[0082] At the same time, the PLC control system first controls the second electromagnet and the first electromagnet 304 to lose power, so that the bracket plate 337 is driven by the first spring 303 to move the plastic barrel away from the support plate 338 for a distance. At this time, the first sliding block and the second sliding block are both moved in the same direction under the action of the second spring 316, and the plastic barrel is in the initial state (the barrel mouth is tilted upward), and then the third electromagnet 325 and the fourth electromagnet 326 are controlled by the PLC control system to be energized. At this time, the second sliding block is magnetically attracted to the third electromagnet 325 through the fourth electromagnet 326. At this time, the second spring 316 connected to the second sliding block is compressed again, and because the second inclined rod 319 is hingedly connected to the second connecting member 320, when the second inclined rod 319 is magnetically attracted to the third electromagnet 325 through the fourth electromagnet 326, the second inclined rod 319 is in a nearly vertical state and pushes the barrel mouth of the plastic barrel downward. At this time, the plastic barrel is in a tilted state with the barrel mouth facing downward and the barrel bottom facing upward, so that the heat transfer oil in the plastic barrel can be discharged;

[0083] When the support plate 305 is removed from the heat transfer oil, the PLC control system is started again to control the third electromagnet 325 and the fourth electromagnet 326 to lose power, so that the second sliding block moves toward the first inclined rod 317 under the action of the second spring 316. At this time, the plastic barrel is reset to its initial state (the barrel mouth faces upward and the barrel bottom faces downward), thereby preventing the heat transfer oil from dripping onto the support plate 337.

[0084] Embodiment three:

[0085] In the above embodiments, the operation of each component is electrically controlled, which makes the working cost higher in actual use. In order to solve the above problem, Figure 6-Figure 8 As shown, a control mechanism is fixedly mounted on the bracket plate 337, and the control mechanism includes a control plate 330 fixedly mounted on the bracket plate 337, and the control plate 330 has a vertically arranged first slideway 331, and a T-shaped plate 327 is fixedly mounted on the second sliding block, and a sliding groove 312 adapted to the size of the T-shaped plate 327 is opened on the bracket plate 337, and the T-shaped plate 327 passes through the sliding groove 312 and is connected to the second sliding block, and the T-shaped plate 327 is suitable for synchronously moving with the movement of the second sliding block, and a control rod 328 is rotatably mounted on the T-shaped plate 327;

[0086] The control rod 328 has a control ball (not shown in the figure), which is in the first slideway 331 in the initial state, and a second slideway 332 is connected to the first slideway 331, and the bottom position of the second slideway 332 is lower than the bottom position of the first slideway 331, so that after the control ball slides from the first slideway 331 into the second slideway 332, it cannot return from the second slideway 332 to the first slideway 331;

[0087] A third slideway 333 is connected to the second slideway 332. The bottom of the third slideway 333 is lower than the bottom of the second slideway 332. A first step (not shown in the figure) is provided between the third slideway 333 and the second slideway 332. Therefore, after the control ball slides from the second slideway 332 into the third slideway 333, it cannot return from the third slideway 333 to the second slideway 332. A first vertex (not shown in the figure) is provided at the connection between the third slideway 333 and the second slideway 332.

[0088] Meanwhile, a first switch is provided at the first vertex. It should be noted that the first switch is used to control the first electromagnet 304 and the second electromagnet. When the first switch is turned on, the first electromagnet 304 and the second electromagnet are energized at the same time and attract each other.

[0089] A fourth slide 335 is connected to the third slide 333, the bottom of the fourth slide 335 is lower than the bottom of the third slide 333, and a second step (not shown in the figure) is provided between the fourth slide 335 and the third slide 333, so that after the control ball slides from the third slide 333 into the fourth slide 335, it cannot return from the fourth slide 335 to the third slide 333, and a stop point 334 is provided at the connection between the third slide 333 and the fourth slide 335 for the control ball to stay;

[0090] A fifth slide 336 is connected to the fourth slide 335, the bottom height of the fifth slide 336 is lower than the bottom height of the fourth slide 335, and a third step (not shown in the figure) is provided between the fourth slide 335 and the fifth slide 336, so that after the control ball slides from the fourth slide 335 into the fifth slide 336, it cannot return from the fifth slide 336 to the fourth slide 335, and a second vertex (not shown in the figure) is provided at the connection between the fourth slide 335 and the fifth slide 336, and the second vertex is at the same height as the first vertex;

[0091] like Figure 7-Figure 8 As shown, a second switch is provided at the second vertex. It should be noted that the second switch is used to control the third electromagnet 325 and the fourth electromagnet 326. When the second switch is turned on, the third electromagnet 325 and the fourth electromagnet 326 are energized at the same time and attract each other, while the first electromagnet 304 and the second electromagnet are de-energized at the same time and separate from each other;

[0092] At the same time, the fifth slide 336 is connected to the first slide 331, and a transition slope (not shown in the figure) is provided at the connection between the fifth slide 336 and the first slide 331. The transition slope gradually increases along the position close to the first slide 331, and the highest position of the transition slope is higher than the position of the groove bottom of the first slide 331 and forms a fourth step. The fourth step is used to limit the initial movement of the control ball, so that the control ball can only move from the first slide 331 to the second slide 332 during the initial movement.

[0093] like Figure 4 As shown, a third switch 341 is fixedly mounted on the support portion 340, and the third switch 341 has a button, and the button faces the bracket plate 337. It should be noted that the third switch 341 is used to control the third electromagnet 325 and the fourth electromagnet 326. When the third switch 341 is turned on, the third electromagnet 325 and the fourth electromagnet 326 lose power at the same time and separate from each other;

[0094] In summary, when it is necessary to inspect the inner and outer walls of the plastic barrel, the lid of the plastic barrel is removed, and the plastic barrel is fixed in the first clamp ring and the second clamp ring, and then the first cylinder 301 is started to perform a telescopic movement, and the bracket plate 337 is pushed to drive the plastic barrel to move downward. Since the plastic barrel is initially fixed with an inclined setting (the barrel mouth faces upward and the barrel bottom faces downward), the barrel bottom of the plastic barrel first abuts against a group of supporting plates 338 with a higher groove bottom, and due to the abutment of the supporting plates 338, the barrel bottom of the plastic barrel is restricted and cannot move downward;

[0095] As the first cylinder 301 continuously drives the support plate 337 to move downward, the mouth of the plastic barrel simultaneously moves toward the arc-shaped pad 339 and abuts against the arc-shaped pad 339, thereby changing the inclination angle of the second inclined rod 319, and further causing the second sliding block to move away from the mouth of the plastic barrel;

[0096] At the same time, the second sliding block drives the control ball to slide from the first slideway 331 to the second slideway 332, and when the first cylinder 301 reaches the extension limit, the control ball is held against the first vertex, and the first switch is pressed at the same time. At this time, the first electromagnet 304 and the second electromagnet are energized at the same time and attract each other, so that the second electromagnet on the bracket plate 337 is magnetically attracted to the first electromagnet 304, and the third spring is compressed, so that the position of the barrel mouth of the plastic barrel is synchronously lowered, and finally flush with the position of the bottom of the plastic barrel. As the first cylinder 301 is reset, the plastic barrel moves upward under the action of the third spring, thereby driving the second sliding block to move away from the first inclined rod 317. Since the distance from the first vertex to the stop point 334 is short, the plastic barrel is still in a relatively horizontal state.

[0097] Then, the first motor 204 is started to drive the screw rod 203 to rotate, so that the sliding seat 205 moves downward and drives the support plate 305 and the plastic barrel to be placed in the first heating chamber in the heating box 601, and at the same time placed in the heat transfer oil, and the heat transfer oil enters the plastic barrel through the barrel mouth, and then the heating box 601 is started to heat the heat transfer oil in the first heating chamber;

[0098] The weight is placed on the weight placement plate 211, and then the third cylinder is started to drive the slider 207 to move downward, and the slider 207 drives the displacement sensor 210 to move downward. When the contact of the displacement sensor 210 contacts the weight, the third cylinder continues to drive the slider 207 to move downward, so that the mounting block 215 is away from the protruding end;

[0099] During the test, when the plastic barrel is deformed by heat, the pressing block 212 moves downward under the action of the weight. At this time, the pressing block 212 moves downward, and the displacement is measured and displayed by the displacement sensor 210 installed on the mounting block 215. When the displacement reaches a specified value, the temperature is recorded and the experiment ends.

[0100] After the test, the first motor 204 is started and drives the sliding seat 205 to move upward. At this time, the plastic barrel is slowly moved out of the heat transfer oil in the first heating chamber. At the same time, the first cylinder 301 is started again to perform a telescopic movement. The first cylinder 301 pushes the bracket plate 337. At the same time, the plastic barrel mouth squeezes the arc pad 339 and the third spring. At this time, the control ball slides from the retention point 334 to the fourth slide 335. When the telescopic end of the first cylinder 301 reaches the limit, the control ball is held at the second vertex and the second switch is pressed at the same time. At this time, the first electromagnet 304 and the second electromagnet are simultaneously When the power is lost and they are separated from each other, the bracket plate 337 is moved upward by the action of the first spring 303, and at the same time, the third electromagnet 325 and the fourth electromagnet 326 are energized and attract each other, so that the second sliding block approaches the fixed block 324 and is magnetically attracted to the third electromagnet 325 through the fourth electromagnet 326. The second spring 316 connected to the second sliding block is in an extruded state, and the second inclined rod 319 tends to be in a vertical state and pushes the mouth of the plastic barrel to move downward. At this time, the plastic barrel is in an inclined state with the mouth of the barrel facing downward and the bottom of the barrel facing upward, so that the heat transfer oil in the plastic barrel can be discharged;

[0101] As the bracket plate 337 moves upward under the action of the first spring 303 and the first spring 303 has its own contraction elastic force, the bracket plate 337 presses the third switch 341. At this time, when the third switch 341 is turned on, the third electromagnet 325 and the fourth electromagnet 326 lose power at the same time, so that the fourth electromagnet 326 moves away from the third electromagnet 325 under the resetting action of the second spring 316. At this time, the second sliding block moves away from the fixed block 324. At this time, the plastic barrel is reset to the initial state (the barrel mouth faces upward and the barrel bottom faces downward), and the control ball slides from the second vertex on the fifth slide 336 and returns to the first slide 331, thereby preventing the residual heat transfer oil in the plastic barrel from dripping onto the bracket plate 337.

[0102] Embodiment 4: Since the above embodiment can only perform the thermal deformation test on the outer wall of the plastic barrel when performing the thermal deformation test on the plastic barrel sample, it is difficult to perform a separate inner wall test on the plastic barrel sample;

[0103] In order to solve the above problems, Figure 4-Figure 7 As shown, a third detection assembly 4 is installed on the top plate 602. The third detection assembly 4 is similar to the second detection assembly 3 in structure. The third detection assembly 4 is different from the second detection assembly 3 in that a second cylinder 401 is fixedly installed on the protruding plate of the third detection assembly 4, and the output end of the second cylinder 401 passes through the protruding plate, and a barrel cover 402 is installed on the output end of the second cylinder 401, and two groups of pump bodies 403 are fixedly installed on the barrel cover 402, and hoses 404 are installed on the water inlet ends of the two groups of pump bodies 403. At the same time, a through hole 405 matching the diameter of the hose 404 is opened on the support plate 305 of the third detection assembly 4, and the hose 404 passes through the through hole 405;

[0104] In summary, when the inner wall of the plastic barrel needs to be inspected, the plastic barrel is fixed in the first clamp ring and the second clamp ring, and then the first cylinder 301 is started to perform a telescopic movement, and the bracket plate 337 is pushed to drive the plastic barrel to move downward. Since the plastic barrel is initially fixed with an inclined setting (the barrel mouth faces upward and the barrel bottom faces downward), the barrel bottom of the plastic barrel first abuts against a group of supporting plates 338 with a higher groove bottom, and due to the abutment of the supporting plates 338, the barrel bottom of the plastic barrel is restricted and cannot move downward;

[0105] As the first cylinder 301 continuously drives the support plate 337 to move downward, the mouth of the plastic barrel simultaneously moves toward the arc-shaped pad 339 and abuts against the arc-shaped pad 339, thereby changing the inclination angle of the second inclined rod 319, and further causing the second sliding block to move away from the mouth of the plastic barrel;

[0106] At the same time, the second sliding block drives the control ball to slide from the first slideway 331 to the second slideway 332, and when the first cylinder 301 reaches the extension limit, the control ball is held at the first vertex, and the first switch is pressed at the same time. At this time, the first electromagnet 304 and the second electromagnet are energized at the same time and attract each other, so that the second electromagnet on the bracket plate 337 is magnetically attracted to the first electromagnet 304, and the third spring is compressed, so that the position of the barrel mouth of the plastic barrel is synchronously lowered, and finally flush with the position of the bottom of the plastic barrel. As the first cylinder 301 is reset, the plastic barrel moves upward under the action of the third spring, and then drives the second sliding block to move away from the first inclined rod 317. Since the distance from the first vertex to the stop point 334 is short, the plastic barrel is still in a relatively horizontal state. At this time, the barrel cover 402 installed at the extension end of the second cylinder 401 is on the same horizontal line as the barrel mouth of the plastic barrel, and then the second cylinder 401 is started to drive the barrel cover 402 to cover the barrel mouth of the plastic barrel;

[0107] Then, the first motor 204 is started to drive the screw rod 203 to rotate, so that the sliding seat 205 moves downward and drives the support plate 305 and the plastic barrel to be placed in the second heating chamber and placed on the upper end of the heat transfer oil. Then, the two sets of pump bodies 403 are started at the same time to respectively guide and guide the heat transfer oil into and out of the plastic barrel, so that the heat transfer oil in the plastic barrel is in a flowing state. At the same time, the heating box 601 is started to heat the heat transfer oil in the second heating chamber.

[0108] The weight is placed on the weight placement plate 211, and then the third cylinder is started to drive the slider 207 to move downward, and the slider 207 drives the displacement sensor 210 to move downward. When the contact of the displacement sensor 210 contacts the weight, the third cylinder continues to drive the slider 207 to move downward, so that the mounting block 215 is away from the protruding end;

[0109] During the test, when the plastic barrel is deformed by heat, the pressing block 212 moves downward under the action of the weight. At this time, the pressing block 212 moves downward, and the displacement is measured and displayed by the displacement sensor 210 installed on the mounting block 215. When the displacement reaches a specified value, the temperature is recorded and the experiment ends.

[0110] After the test, the two groups of pump bodies 403 are closed, and then the second cylinder 401 is started to drive the barrel cover 402 away from the plastic barrel, and the first motor 204 is started to drive the sliding seat 205 to move upward. At this time, the plastic barrel is slowly moved out of the heat transfer oil in the second heating chamber, and the first cylinder 301 is started again to perform a telescopic movement. The first cylinder 301 pushes the bracket plate 337, and the plastic barrel mouth squeezes the arc pad 339 and the third spring. At this time, the control ball slides from the retention point 334 to the fourth slide 335, and as the telescopic end of the first cylinder 301 reaches the limit, the control ball is held at the second vertex and the second switch is pressed at the same time. At this time, the first electromagnet 304 and the second electromagnet are de-energized at the same time and separated from each other, so that the bracket plate 337 moves upward under the action of the first spring 303, and the third electromagnet 325 and the fourth electromagnet 326 are energized and attract each other, so that the second sliding block approaches the fixed block 324 and is magnetically attracted to the third electromagnet 325 through the fourth electromagnet 326. The second spring 316 connected to the second sliding block is in a squeezed state, and the second inclined rod 319 tends to be in a vertical state and pushes the mouth of the plastic barrel to move downward. At this time, the plastic barrel is in a tilted state with the mouth of the barrel facing downward and the bottom of the barrel facing upward, so that the heat transfer oil in the plastic barrel can be discharged;

[0111] As the bracket plate 337 moves upward under the action of the first spring 303 and the first spring 303 has its own contraction elastic force, the bracket plate 337 presses the third switch 341. At this time, when the third switch 341 is turned on, the third electromagnet 325 and the fourth electromagnet 326 lose power at the same time, so that the fourth electromagnet 326 moves away from the third electromagnet 325 under the resetting action of the second spring 316. At this time, the second sliding block moves away from the fixed block 324. At this time, the plastic barrel is reset to the initial state (the barrel mouth faces upward and the barrel bottom faces downward), and the control ball slides from the second vertex on the fifth slide 336 and returns to the first slide 331, thereby preventing the residual heat transfer oil in the plastic barrel from dripping onto the bracket plate 337.

[0112] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A plastic barrel thermal deformation test device, characterized in that: include: A workbench (1), the workbench (1) having a placement plate (101); A heating component (6), the heating component (6) being mounted on the placement plate (101), the heating component (6) comprising a heating box (601) for heating the plastic barrel, and a top plate (602) for sealing the heating box (601); A first detection component (2), the first detection component (2) being mounted on the top plate (602), the first detection component (2) being used to perform thermal deformation detection on the outer wall of the plastic barrel when the outer wall is heated; A second detection component (3), the second detection component (3) being mounted on the top plate (602), the second detection component (3) being used to perform thermal deformation detection on the inner and outer walls of the plastic barrel when the inner and outer walls are heated, the second detection component (3) comprising: A moving mechanism, which is mounted on the top plate (602) and is used to place the plastic barrel into the heating box (601): A sealing plate (201), the sealing plate (201) being mounted on the top plate (602); A placement mechanism, the placement mechanism being mounted on the sealing plate (201); A sleeve connection mechanism, the sleeve connection mechanism being mounted on the lower end of the sealing plate (201); A control mechanism, the control mechanism being mounted at the lower end of the sealing plate (201); The first detection component (2) and the second detection component (3) are suitable for performing thermal deformation detection on the plastic barrel under different heating conditions, and the control mechanism is suitable for controlling the angle of the plastic barrel so as to drain out the residual liquid when the plastic barrel leaves the heating box (601); The placement mechanism comprises two groups of first cylinders (301) mounted on the sealing plate (201), four groups of penetration rods (302) are mounted on the sealing plate (201), one end of the four groups of penetration rods (302) is mounted with a support plate (305), the support plate (305) has two groups of protruding plates, two groups of support plates (338) are mounted on the support plate (305), one group of the support plates (338) is mounted with an arc-shaped pad (339), and a third spring is connected between the arc-shaped pad (339) and the support plate (338); The four groups of penetration rods (302) are sleeved with a bracket plate (337), the four groups of penetration rods (302) are sleeved with a support portion (340), the four groups of penetration rods (302) are sleeved with a first spring (303), the penetration rods (302) are sleeved with a first electromagnet (304), and the bracket plate (337) is installed with a second electromagnet; A PLC control system is installed on the workbench (1); The support plate (337) is provided with two groups of sliding grooves (312), and four groups of fixed seats (313) are installed on the support plate (337). Two groups of connecting rods (314) are connected between the two groups of fixed seats (313), and two groups of sliding blocks (315) are installed on the connecting rods (314). A displacement groove adapted to the width of the sliding block (315) is provided on a side of the support plate (337) away from the sealing plate (201), and the sliding block (315) on the left is defined as a first sliding block, and the sliding block (315) on the right is defined as a second sliding block. A fixed block (324) is installed on the connecting rod (314), and a third electromagnet (325) is installed on the fixed block (324), and a fourth electromagnet (326) is installed on the second sliding block. A second spring (316) is arranged between the four groups of sliding blocks (315) and the inner wall of the shifting groove, the first sliding block is hinged with a first oblique rod (317), one end of the first oblique rod (317) is hinged with a first connecting piece (318), the second sliding block is hinged with a second oblique rod (319), and the second oblique rod (319) is hinged with a second connecting piece (320); The sleeve connection mechanism comprises four groups of sleeve connection half rings (321) arranged between two groups of the first oblique rods (317) and two groups of the second oblique rods (319); the sleeve connection half rings (321) have a protruding portion (322) and a fastener (323) is connected to the protruding portion (322).

2. A plastic barrel thermal deformation testing device according to claim 1, characterized in that: The control mechanism is mounted on the bracket plate (337), and comprises a control plate (330) mounted on the bracket plate (337), the control plate (330) having a first slideway (331), a T-shaped plate (327) being mounted on the second sliding block, a control rod (328) being rotatably mounted on the T-shaped plate (327), the control rod (328) having a control ball, and a second slideway (332) being connected to the first slideway (331).

3. A plastic barrel thermal deformation testing device according to claim 2, characterized in that: A third slide (333) is connected to the second slide (332), a first step is provided between the third slide (333) and the second slide (332), a first vertex is provided at the connection between the third slide (333) and the second slide (332), and a first switch is provided at the first vertex.

4. A plastic barrel thermal deformation testing device according to claim 3, characterized in that: The third slideway (333) is connected to a fourth slideway (335), a second step is provided between the fourth slideway (335) and the third slideway (333), and a stationary point (334) is provided at the connection point between the third slideway (333) and the fourth slideway (335).

5. A plastic barrel thermal deformation testing device according to claim 4, characterized in that: The fourth slide (335) is connected to a fifth slide (336), a third step is provided between the fourth slide (335) and the fifth slide (336), a second vertex is provided at the connection between the fourth slide (335) and the fifth slide (336), and a second switch is provided at the second vertex.

6. A plastic barrel thermal deformation testing device according to claim 5, characterized in that: The fifth slide (336) is connected to the first slide (331), and a transition slope is provided at the connection between the fifth slide (336) and the first slide (331), the highest position of the transition slope is higher than the bottom position of the groove of the first slide (331) and forms a fourth step, and a third switch (341) is installed on the support portion (340).

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