A liquid IBC liner bag tensile strength testing device

Abstract

The present invention belongs to the technical field of tensile strength detection of liner bags, and provides a tensile strength detection device for liquid IBC liner bags, including a base, the base is fixedly connected to an electric telescopic frame, the telescopic part of the electric telescopic frame is fixedly connected to a fixed plate, the fixed plate is fixedly connected to a connecting column, the connecting column is rotatably connected to two turntables, the side end surface of each turntable is rotatably connected to two No. 1 electric rods, and the two No. 1 electric rods on the same turntable form an angle of 180 degrees, and the four No. 1 electric rods are on the same horizontal plane, the connecting column is fixedly connected to a fixed seat, and the fixed seat is fixedly connected to an angle adjustment mechanism. During detection, the liquid IBC liner bag is easily offset relative to the tensioning mechanism under the action of the tensile force. At this time, the control system can adjust the detection accuracy of the liquid IBC liner bag during tensile strength detection by controlling the tensioning mechanism and the positioning mechanism.

Description

Technical Field

[0001] The invention belongs to the technical field of liner bag tensile strength detection, and in particular relates to a liquid IBC liner bag tensile strength detection device. Background Art

[0002] Standard containers are used to load bulk, fluid, granular and powdered products. Container liner bags are made of food-grade materials to keep the goods dry and hygienic during transportation. Compared with traditional packaging bags, container liner bags have the advantages of convenient loading and unloading, saving packaging costs and reducing labor costs.

[0003] When the existing liquid IBC liner bag tensile strength testing device is used to stretch the liquid IBC liner bag, the bag is usually fixed first, and then the edges and corners are stretched by the stretching device.

[0004] However, this detection method has a large detection error. Generally, when a liquid IBC liner bag is subjected to pressure, it usually breaks first from the joints of the two bag surfaces. During the detection, pressure should be applied to both sides of the joints of the two bag surfaces. The existing liquid IBC liner bag tensile strength detection device is not easy to apply uniform pressure to the joints of multiple bag surfaces at the same time during the stretching process, and the tensile strength detection result of the liquid IBC liner bag has a large error. Summary of the invention

[0005] The purpose of the present invention is to provide a liquid IBC liner bag tensile strength testing device, aiming to solve the technical problem that the existing liquid IBC liner bag tensile strength testing device in the prior art is not easy to simultaneously apply uniform pressure to the joints of multiple bag surfaces during the stretching process, and the tensile strength test results of the liquid IBC liner bag have large errors.

[0006] The present invention is implemented as follows: a liquid IBC liner bag tensile strength detection device comprises a base, the base is fixedly connected with a retractable electric telescopic frame, the telescopic portion of the electric telescopic frame is fixedly connected with a fixed plate, the fixed plate is fixedly connected with a connecting column, the connecting column is rotatably connected with two turntables, the side end surface of each turntable is rotatably connected with two No. 1 electric rods, and the two No. 1 electric rods on the same turntable form an angle of 180 degrees, and the four No. 1 electric rods are on the same horizontal plane, the connecting column is fixedly connected with a fixing seat, the fixing seat is fixedly connected with an angle adjustment mechanism, and the angle adjustment mechanism can pull the two No. 1 electric rods on the two turntables to move relative to each other;

[0007] The telescopic part of each No. 1 electric pole is fixedly connected to a vertical pole, and the bottom end of the vertical pole is connected to a tensioning mechanism, and the tensioning mechanism can limit the bottom of the liquid IBC liner bag by telescopic movement; the upper end of the vertical pole is connected to a positioning mechanism, and the positioning mechanism can limit the top of the liquid IBC liner bag, and the positioning mechanism can limit the liquid IBC liner bag in the horizontal direction;

[0008] The vertical rod is fixedly connected with a stretching mechanism, and the stretching mechanism can detect the seams of the liquid IBC liner bag at any height by vertical movement;

[0009] The control system can adjust the detection accuracy of the tensile strength test of the liquid IBC liner bag by controlling the tensioning mechanism and the positioning mechanism.

[0010] Further technical solution: the angle adjustment mechanism includes a vertical plate, a second electric rod, a slide slot and a limit rod;

[0011] The vertical plate is fixedly connected to the fixed seat, and two No. 2 electric rods are symmetrically fixedly connected to the two end surfaces of the vertical plate. The telescopic parts of the slide grooves are fixedly connected to the limit rods. The fixed part of the No. 1 electric rod is provided with a slide groove along the length direction, and the limit rods are inserted into the slide grooves.

[0012] Further technical solution: the tensioning mechanism includes a No. 3 electric rod, a limit tooth plate and an elastic torsion spring;

[0013] The No. 3 electric rod can be electrically extended and retracted, one end of the No. 3 electric rod is fixedly connected to the vertical rod, the telescopic part of the No. 3 electric rod is rotatably connected to a limit tooth plate, and an elastic torsion spring is connected between the limit tooth plate and the No. 3 electric rod.

[0014] Further technical solution: the positioning mechanism includes a No. 1 electric telescopic sleeve, a fixed sleeve, a rotating sleeve, an elastic component, a rotating seat and a hook;

[0015] The No. 1 electric telescopic sleeve is fixedly connected to the vertical rod, the telescopic part of the No. 1 electric telescopic sleeve is fixedly connected to a fixed sleeve, the fixed sleeve is rotatably connected to a rotating sleeve, a driving component for driving the rotating sleeve to rotate is arranged in the fixed sleeve, the rotating sleeve is elastically connected to a plurality of rotating seats through an elastic component, and one end of each rotating seat is rotatably connected to a hook.

[0016] Further technical solution: the elastic component includes a mechanism box, a slide plate and a spring;

[0017] The mechanism box is fixedly connected to the rotating sleeve, a slide plate is vertically slidably connected in the inner cavity of the mechanism box, a plurality of springs are connected between the slide plate and the inner end surface of the mechanism box, and the slide plate is fixedly connected to a plurality of rotating seats, which all penetrate the lower end surface of the mechanism box.

[0018] Further technical solution: the stretching mechanism includes a No. 2 electric telescopic sleeve, a connecting seat and a push plate;

[0019] The fixed part of the No. 2 electric telescopic sleeve is fixedly connected to the outer wall of the vertical rod. The telescopic part of the No. 2 electric telescopic sleeve is fixedly connected to two connecting seats. One end of each connecting seat is fixedly connected to a push plate. The two push plates form an angle of ninety degrees in the horizontal direction, and the two push plates are symmetrically arranged about the No. 1 electric rod in the middle.

[0020] Further technical solution: The control system comprises:

[0021] A monitoring module, comprising a first pressure sensor and a second pressure sensor, wherein the first pressure sensor is arranged between the spring and the inner end surface of the mechanism box, and the second pressure sensor is arranged between the elastic torsion spring and the third electric rod;

[0022] A storage module, which is used to store the pressure values ​​of the first pressure sensor and the second pressure sensor at each moment;

[0023] A processing module, which is used to retrieve the pressure values ​​of the first pressure sensor and the second pressure sensor at the current moment, and compare the two with the pressure difference thresholds preset in the processing module, and if at least one of them exceeds the corresponding threshold, a judgment information is formed;

[0024] The control module is used to receive the judgment information and control the tensioning mechanism and the positioning mechanism.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. Start all stretching mechanisms to move in the vertical direction to determine the detection height of the joint of the liquid IBC liner bag, and then start all No. 1 electric rods at the same time. The No. 1 electric rod drives all tensioning mechanisms to tighten the liquid IBC liner bag, so as to test the tensile strength of the liquid IBC liner bag;

[0027] 2. During the test, the liquid IBC liner bag is prone to deflect relative to the tensioning mechanism under the action of the tensile force. At this time, the control system can adjust the detection accuracy of the tensile strength test of the liquid IBC liner bag by controlling the tensioning mechanism and the positioning mechanism;

[0028] 3. When the pressure value of the No. 1 pressure sensor exceeds the preset pressure threshold, it means that the vertical tension of the liquid IBC liner bag is too large, which affects the accuracy of the tensile strength detection of the parts detected by each stretching mechanism in the horizontal direction. At this time, the control module controls the start of the No. 3 electric rod to contract or the No. 1 electric telescopic sleeve to extend, thereby reducing the vertical tension of the IBC liner bag;

[0029] 4. When the pressure value of the No. 2 pressure sensor exceeds the preset pressure threshold, it means that the joint of the liquid IBC liner bag is offset relative to the stretching mechanism during the tensioning process, and the liquid IBC liner bag affects the accuracy of the tensile strength test. At this time, the control module controls the drive component in the fixed sleeve to start, and the drive component drives the rotating sleeve to rotate, and the rotating sleeve drives all hooks to stretch the liquid IBC liner bag to reset. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0031] Figure 2 It is a schematic diagram of the connection between the No. 1 electric rod and the stretching mechanism in the present invention.

[0032] Figure 3 It is a structural schematic diagram of the angle adjustment mechanism in the present invention.

[0033] Figure 4 It is a structural schematic diagram of the positioning mechanism in the present invention.

[0034] Figure 5 It is a schematic diagram of the structure of the elastic component in the present invention.

[0035] Figure 6 It is a schematic diagram of the structure of the vertical rod, the tensioning mechanism and the stretching mechanism in the present invention.

[0036] Figure 7 Schematic diagram of the control principle of the regulation system in the present invention.

[0037] In the attached drawings: 1. base; 2. electric telescopic frame; 3. connecting column; 4. turntable; 5. No. 1 electric rod; 6. angle adjustment mechanism; 61. vertical plate; 62. No. 2 electric rod; 63. slide groove; 64. limit rod; 7. tensioning mechanism; 71. No. 3 electric rod; 72. limit tooth plate; 73. elastic torsion spring; 8. positioning mechanism; 81. No. 1 electric telescopic sleeve; 82. fixed sleeve; 83. rotating sleeve; 84. elastic component; 841. mechanism box; 842. slide plate; 843. spring; 85. rotating seat; 86. hook; 9. stretching mechanism; 91. No. 2 electric telescopic sleeve; 92. connecting seat; 93. push plate; 10. vertical rod; 11. fixed plate; 12. fixed seat. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0039] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0040] like Figure 1-Figure 7 As shown, a liquid IBC liner bag tensile strength detection device provided by the present invention comprises a base 1, the base 1 is fixedly connected with a retractable electric telescopic frame 2, the telescopic portion of the electric telescopic frame 2 is fixedly connected with a fixed plate 11, the fixed plate 11 is fixedly connected with a connecting column 3, the connecting column 3 is rotatably connected with two turntables 4, the side end surface of each turntable 4 is rotatably connected with two No. 1 electric rods 5, and the two No. 1 electric rods 5 on the same turntable 4 form an angle of 180 degrees, and the four No. 1 electric rods 5 are on the same horizontal plane, the connecting column 3 is fixedly connected with a fixing seat 12, the fixing seat 12 is fixedly connected with an angle adjustment mechanism 6, and the angle adjustment mechanism 6 can pull the two No. 1 electric rods 5 on the two turntables 4 to move relative to each other;

[0041] The telescopic part of each No. 1 electric rod 5 is fixedly connected to a vertical rod 10, and the bottom end of the vertical rod 10 is connected to a tensioning mechanism 7, and the tensioning mechanism 7 can limit the bottom of the liquid IBC liner bag by telescopic movement; the upper end of the vertical rod 10 is connected to a positioning mechanism 8, and the positioning mechanism 8 can limit the top of the liquid IBC liner bag, and the positioning mechanism 8 can limit the liquid IBC liner bag in the horizontal direction;

[0042] The vertical rod 10 is fixedly connected with a stretching mechanism 9, and the stretching mechanism 9 can detect the seams of any height of the liquid IBC liner bag by vertical movement;

[0043] The control system can adjust the detection accuracy of the tensile strength test of the liquid IBC liner bag by controlling the tensioning mechanism 7 and the positioning mechanism 8.

[0044] In this embodiment, the first electric rod 5 and the angle adjustment mechanism 6 are pre-activated to locate the horizontal positions of all the stretching mechanisms 9 according to the length and width of the liquid IBC liner bag;

[0045] The liquid IBC liner bag is sleeved on the outside of all the stretching mechanisms 9, and then the upper corners of the liquid IBC liner bag are fixed by all the positioning mechanisms 8, and then all the tensioning mechanisms 7 are started to move downward, and all the tensioning mechanisms 7 fix the inner corners of the liquid IBC liner bag;

[0046] All stretching mechanisms 9 are started to move in the vertical direction, so as to determine the detection height of the joint of the liquid IBC liner bag, and then all No. 1 electric rods 5 are started at the same time, and the No. 1 electric rod 5 drives all tensioning mechanisms 7 to tension the liquid IBC liner bag, so as to detect the tensile strength of the liquid IBC liner bag;

[0047] During testing, the liquid IBC liner bag is easily offset relative to the tensioning mechanism 7 under the action of the tensile force. At this time, the control system can adjust the detection accuracy of the tensile strength test of the liquid IBC liner bag by controlling the tensioning mechanism 7 and the positioning mechanism 8.

[0048] like Figure 3 As shown, a liquid IBC liner bag tensile strength detection device provided by the present invention, the angle adjustment mechanism 6 includes a vertical plate 61, a second electric rod 62, a slide slot 63 and a limit rod 64;

[0049] The vertical plate 61 is fixedly connected to the fixed seat 12, and two end surfaces of the vertical plate 61 are symmetrically fixedly connected with two No. 2 electric rods 62. The telescopic parts of the slide grooves 63 are fixedly connected with the limiting rods 64. The fixed part of the No. 1 electric rod 5 is provided with slide grooves 63 along the length direction, and the limiting rods 64 are all inserted in the slide grooves 63.

[0050] In this embodiment, the two No. 2 electric rods 62 are started to extend and retract at the same time. The two No. 2 electric rods 62 pull the two No. 1 electric rods 5 through the cooperation of the slide groove 63 and the limit rod 64. Under the limiting action of the two turntables 4, the two No. 1 electric rods 5 move relative to each other, thereby positioning the horizontal position of all stretching mechanisms 9 according to the length and width of the liquid IBC liner bag.

[0051] like Figure 6 As shown, a liquid IBC liner bag tensile strength detection device provided by the present invention, the tensioning mechanism 7 includes a third electric rod 71, a limit tooth plate 72 and an elastic torsion spring 73;

[0052] The third electric rod 71 can be electrically extended and retracted, one end of the third electric rod 71 is fixedly connected to the vertical rod 10, the telescopic part of the third electric rod 71 is rotatably connected to the limiting tooth plate 72, and an elastic torsion spring 73 is connected between the limiting tooth plate 72 and the third electric rod 71.

[0053] In this embodiment, the third electric rod 71 is started to extend, and the third electric rod 71 drives the limiting tooth plate 72 to apply pressure to the corners of the liquid IBC liner bag, so that the liquid IBC liner bag is tightened vertically.

[0054] like Figure 4As shown, a liquid IBC liner bag tensile strength detection device provided by the present invention, the positioning mechanism 8 includes a No. 1 electric telescopic sleeve 81, a fixed sleeve 82, a rotating sleeve 83, an elastic component 84, a rotating seat 85 and a hook 86;

[0055] The first electric telescopic sleeve 81 is fixedly connected to the vertical rod 10, the telescopic part of the first electric telescopic sleeve 81 is fixedly connected to a fixed sleeve 82, the fixed sleeve 82 is rotatably connected to a rotating sleeve 83, the fixed sleeve 82 is provided with a driving component for driving the rotating sleeve 83 to rotate, the rotating sleeve 83 is elastically connected to a plurality of rotating seats 85 through an elastic component 84, and one end of each rotating seat 85 is rotatably connected to a hook 86;

[0056] The driving assembly includes a motor, a transmission wheel and a ring gear. The upper end surface of the rotating sleeve 83 is fixedly connected to the ring gear, the inner wall of the fixed sleeve 82 is fixedly connected to the motor, and the transmission wheel is fixedly connected to the output shaft of the motor. When the motor rotates, the transmission wheel drives the rotating sleeve 83 to rotate by meshing with the ring gear.

[0057] In this embodiment, the corners of the IBC liner bag are fixed by multiple hooks 86, and the No. 1 electric telescopic sleeve 81 is started to extend and retract, thereby pulling the IBC liner bag to tighten vertically; during the test, the No. 1 electric rod 5 drives all the stretching mechanisms 9 to tension the liquid IBC liner bag. If the liquid IBC liner bag is horizontally offset under the action of the tensioning force, the driving component in the fixed sleeve 82 is started at this time, and the driving component drives the rotating sleeve 83 to rotate, and the rotating sleeve 83 drives all the hooks 86 to stretch the liquid IBC liner bag to reset.

[0058] like Figure 5 As shown, a liquid IBC liner bag tensile strength detection device provided by the present invention, the elastic component 84 includes a mechanism box 841, a slide plate 842 and a spring 843;

[0059] The mechanism box 841 is fixedly connected to the rotating sleeve 83, a slide plate 842 is vertically slidably connected in the inner cavity of the mechanism box 841, a plurality of springs 843 are connected between the slide plate 842 and the inner end surface of the mechanism box 841, and a plurality of rotating seats 85 are fixedly connected to the slide plate 842, and the rotating seats 85 all pass through the lower end surface of the mechanism box 841.

[0060] In this embodiment, under the action of all springs 843, all hooks 86 elastically stretch the liquid IBC liner bag vertically, thereby preventing the liquid IBC liner bag from being torn during the fixing process.

[0061] like Figure 6As shown, a liquid IBC liner bag tensile strength detection device provided by the present invention, the stretching mechanism 9 includes a second electric telescopic sleeve 91, a connecting seat 92 and a push plate 93;

[0062] The fixed part of the No. 2 electric telescopic sleeve 91 is fixedly connected to the outer wall of the vertical rod 10, and the telescopic part of the No. 2 electric telescopic sleeve 91 is fixedly connected to two connecting seats 92, and one end of each connecting seat 92 is fixedly connected to a push plate 93, and the two push plates 93 form an angle of ninety degrees in the horizontal direction, and the two push plates 93 are symmetrically arranged about the No. 1 electric rod 5 in the middle.

[0063] In this embodiment, the No. 2 electric telescopic sleeve 91 is started to extend and retract, and the No. 2 electric telescopic sleeve 91 drives the push plate 93 to move vertically through the connecting seat 92, and the vertical limit position of the push plate 93 on the liquid IBC liner bag can be adjusted.

[0064] like Figure 7 As shown, a liquid IBC liner bag tensile strength detection device provided by the present invention, the control system includes:

[0065] The monitoring module includes a first pressure sensor and a second pressure sensor. The first pressure sensor is disposed between the spring 843 and the inner end surface of the mechanism box 841 , and the second pressure sensor is disposed between the elastic torsion spring 73 and the third electric rod 71 ;

[0066] A storage module, which is used to store the pressure values ​​of the first pressure sensor and the second pressure sensor at each moment;

[0067] A processing module, which is used to retrieve the pressure values ​​of the first pressure sensor and the second pressure sensor at the current moment, and compare the two with the pressure difference thresholds preset in the processing module, and if at least one of them exceeds the corresponding threshold, a judgment information is formed; the processing module is preferably a computer processor;

[0068] A control module is used to receive the judgment information and control the tensioning mechanism 7 and the positioning mechanism 8; the control module is preferably a PLC controller.

[0069] The processing module also includes the following processing steps:

[0070] S1. In the data set of the storage module, obtain the pressure value information of the first pressure sensor at multiple time points within a period of time, denoted as F 1 、F 2 , ..., F i ; and the pressure value information of the second pressure sensor at multiple time points within a period of time, recorded as f 1 、f 2 , ..., f i, where i represents the number of items;

[0071] S2. Based on the pressure values ​​of the first pressure sensor and the second pressure sensor at multiple time points within the current period, the correlation value between the two is calculated as follows:

[0072]

[0073] Where N is the total number of projects, F i is the pressure value of pressure sensor No. 1 at the current moment, f i is the pressure value of the No. 2 pressure sensor at the current moment;

[0074] W(F, f) is the correlation value between pressure sensor No. 1 and pressure sensor No. 2 during the current period of time;

[0075] S3, comparing the obtained correlation value with the correlation value threshold preset in the processing module, and if the correlation value is greater than the preset correlation value threshold, forming judgment information;

[0076] S4. Transmit the above-formed judgment information to the control module for related module control.

[0077] In this embodiment, when the pressure value of the No. 1 pressure sensor exceeds the preset pressure threshold, it means that the vertical tension of the liquid IBC liner bag is too large, which affects the accuracy of the tensile strength detection of the parts detected by each stretching mechanism 9 in the horizontal direction. At this time, the control module controls to start the contraction of the No. 3 electric rod 71 or the extension of the No. 1 electric telescopic sleeve 81, thereby reducing the vertical tension of the IBC liner bag;

[0078] When the pressure value of the second pressure sensor exceeds the preset pressure threshold, it means that the joint of the liquid IBC liner bag is offset relative to the stretching mechanism 9 during the tensioning process, and the liquid IBC liner bag affects the accuracy of the tensile strength test. At this time, the control module controls the driving component in the fixed sleeve 82 to start, and the driving component drives the rotating sleeve 83 to rotate, and the rotating sleeve 83 drives all the hooks 86 to stretch the liquid IBC liner bag to reset;

[0079] When the correlation value between the first pressure sensor and the second pressure sensor exceeds the preset correlation value threshold, the control module controls the tensioning mechanism 7 and the positioning mechanism 8 to start simultaneously, thereby improving the accuracy of the tensile strength detection of the liquid IBC liner bag.

[0080] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0081] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A liquid IBC liner bag tensile strength testing device, comprising a base (1), characterized in that: The base (1) is fixedly connected to a telescopic electric telescopic frame (2); the telescopic portion of the electric telescopic frame (2) is fixedly connected to a fixing plate (11); the fixing plate (11) is fixedly connected to a connecting column (3); the connecting column (3) is rotatably connected to two turntables (4); the side end surface of each turntable (4) is rotatably connected to two No. 1 electric rods (5); the two No. 1 electric rods (5) on the same turntable (4) form an angle of 180 degrees; the four No. 1 electric rods (5) are on the same horizontal plane; the connecting column (3) is fixedly connected to a fixing seat (12); the fixing seat (12) is fixedly connected to an angle adjustment mechanism (6); the angle adjustment mechanism (6) can pull the two No. 1 electric rods (5) on the two turntables (4) to move relative to each other; The telescopic portion of each No. 1 electric rod (5) is fixedly connected to a vertical rod (10), the bottom end of the vertical rod (10) is connected to a tensioning mechanism (7), and the tensioning mechanism (7) can limit the bottom of the liquid IBC liner bag by telescopic movement; the upper end of the vertical rod (10) is connected to a positioning mechanism (8), and the positioning mechanism (8) can limit the top of the liquid IBC liner bag, and at the same time, the positioning mechanism (8) can limit the liquid IBC liner bag in the horizontal direction; The vertical rod (10) is fixedly connected to a stretching mechanism (9), and the stretching mechanism (9) can detect the seams of the liquid IBC liner bag at any height by means of vertical movement; A control system capable of adjusting the detection accuracy of the tensile strength test of the liquid IBC liner bag by controlling the tensioning mechanism (7) and the positioning mechanism (8); The positioning mechanism (8) comprises a first electric telescopic sleeve (81), a fixed sleeve (82), a rotating sleeve (83), an elastic component (84), a rotating seat (85) and a hook (86); the first electric telescopic sleeve (81) is fixedly connected to the vertical rod (10); the telescopic portion of the first electric telescopic sleeve (81) is fixedly connected to the fixed sleeve (82); the fixed sleeve (82) is rotatably connected to the rotating sleeve (83); a driving component for driving the rotating sleeve (83) to rotate is provided in the fixed sleeve (82); the rotating sleeve (83) is elastically connected to a plurality of rotating seats (85) via the elastic component (84); one end of each rotating seat (85) is rotatably connected to a hook (86); The elastic component (84) comprises a mechanism box (841), a slide plate (842) and a spring (843); the mechanism box (841) is fixedly connected to the rotating sleeve (83); a slide plate (842) is vertically slidably connected in the inner cavity of the mechanism box (841); a plurality of springs (843) are connected between the slide plate (842) and the inner end surface of the mechanism box (841); the slide plate (842) is fixedly connected to a plurality of rotating seats (85); and the rotating seats (85) all penetrate the lower end surface of the mechanism box (841).

2. The liquid IBC liner bag tensile strength testing device according to claim 1, characterized in that: The angle adjustment mechanism (6) comprises a vertical plate (61), a second electric rod (62), a slide groove (63) and a limit rod (64); The vertical plate (61) is fixedly connected to the fixed seat (12); two end surfaces of the vertical plate (61) are symmetrically fixedly connected to two No. 2 electric rods (62); the telescopic parts of the slide grooves (63) are fixedly connected to limit rods (64); the fixed part of the No. 1 electric rod (5) is provided with a slide groove (63) along the length direction; and the limit rods (64) are inserted into the slide grooves (63).

3. The liquid IBC liner bag tensile strength testing device according to claim 1, characterized in that: The tensioning mechanism (7) comprises a No. 3 electric rod (71), a limit tooth plate (72) and an elastic torsion spring (73); The third electric rod (71) is electrically retractable, one end of the third electric rod (71) is fixedly connected to the vertical rod (10), the retractable portion of the third electric rod (71) is rotatably connected to a limit tooth plate (72), and an elastic torsion spring (73) is connected between the limit tooth plate (72) and the third electric rod (71).

4. The liquid IBC liner bag tensile strength testing device according to claim 1, characterized in that: The stretching mechanism (9) comprises a No. 2 electric telescopic sleeve (91), a connecting seat (92) and a push plate (93); The fixed portion of the second electric telescopic sleeve (91) is fixedly connected to the outer wall of the vertical rod (10), and the telescopic portion of the second electric telescopic sleeve (91) is fixedly connected to two connecting seats (92), one end of each connecting seat (92) is fixedly connected to a push plate (93), the two push plates (93) form an angle of ninety degrees in the horizontal direction, and the two push plates (93) are symmetrically arranged about the first electric rod (5) in the middle.

5. The liquid IBC liner bag tensile strength testing device according to claim 3, characterized in that: The control system comprises: A monitoring module, comprising a first pressure sensor and a second pressure sensor, wherein the first pressure sensor is arranged between the spring (843) and the inner end surface of the mechanism box (841), and the second pressure sensor is arranged between the elastic torsion spring (73) and the third electric rod (71); A storage module, which is used to store the pressure values ​​of the first pressure sensor and the second pressure sensor at each moment; A processing module, which is used to retrieve the pressure values ​​of the first pressure sensor and the second pressure sensor at the current moment, and compare the two with the pressure difference thresholds preset in the processing module, and if at least one of them exceeds the corresponding threshold, a judgment information is formed; A control module is used to receive the judgment information and control the tensioning mechanism (7) and the positioning mechanism (8).

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