CN114184472A - Tensile testing machine for detecting composite film bag for food packaging - Google Patents
Tensile testing machine for detecting composite film bag for food packaging Download PDFInfo
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- CN114184472A CN114184472A CN202111292874.5A CN202111292874A CN114184472A CN 114184472 A CN114184472 A CN 114184472A CN 202111292874 A CN202111292874 A CN 202111292874A CN 114184472 A CN114184472 A CN 114184472A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/06—Special adaptations of indicating or recording means
- G01N3/062—Special adaptations of indicating or recording means with mechanical indicating or recording means
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Abstract
The invention relates to the technical field of measurement and control, in particular to a tensile testing machine for detecting a composite film bag for food packaging. Which comprises a main body; the clamp is used for clamping the composite membrane bag to be tested; the pressure sensor is used for detecting the tensile force of the composite film bag; the infrared emitter is vertically arranged at the lower part of the movable clamp, and the graduated scale is arranged in parallel along the moving track direction of the movable clamp and used for assisting in detecting the deformation length of the composite film bag; an automatic stretching mechanism arranged on the main body; the fine adjustment mechanism is arranged in the side cavity of the main body and is used for manually fine adjusting and stretching the composite film bag; the locking mechanism is arranged in the side cavity of the main body and used for locking the screw rod rotating shaft during automatic stretching switching and manual stretching fine adjustment; and the control instrument panel is used for receiving the collected signals, performing linkage control and displaying the tested tension value, is convenient for fine adjustment of the force, realizes accurate reading, and is favorable for completing the research of the stress-strain curve of the composite film bag sample in the stretching process.
Description
Technical Field
The invention relates to the technical field of measurement and control, in particular to a tensile testing machine for detecting a composite film bag for food packaging.
Background
The film made of two or more materials is called composite film, which is generally made of plastics, aluminium foil, paper and other materials by adhesion and heat seal, and has protection function. The bag made of the composite film is called a composite film bag. The compound film bag certificate issuing product range comprises a boiling-resistant compound film bag, a biaxially oriented polypropylene (BOPP)/low-density polyethylene (LDPE) compound film bag, a biaxially oriented nylon (BOPA)/low-density polyethylene (LDPE) compound film bag, a compound film bag for hot pickled mustard tuber packaging, a paper-based compound material for liquid food aseptic packaging, a compound bag for liquid food aseptic packaging, a paper-based compound material for liquid food fresh-keeping packaging (roof bag), a plastic compound film bag for liquid food packaging, a multilayer compound food packaging film, a bag and other multilayer compound food packaging films, a multilayer compound food packaging film bag for packaging instant noodles, puffed food, cooked food, semi-finished products and the like, and the like.
Need carry out quality testing to compound membrane bag when putting into use, wherein contain the tensile properties test to compound membrane bag, its principle is in its experiment of compound membrane bag tensile strength: the method comprises the steps of clamping a sample between two chucks of a film tensile strength tester clamp, enabling the two chucks to move relatively, collecting force value change and displacement change in the test process through a force value sensor positioned on a movable chuck and a displacement sensor arranged in a machine, calculating performance indexes of the sample such as tensile strength, tearing strength and deformation rate, detecting the tensile property of a composite film bag sample, namely researching a stress-strain curve of the composite film bag sample in the tensile process, stretching the sample and tracking marks of the test, recording data of each node according to requirements for calculating the elongation of the sample, and collecting the maximum force value in the process of stretching to break. At present, displacement measuring devices in tensile testing machines are mainly potentiometer type, capacitive type inductive or resistive type displacement sensors. But the potentiometer type displacement sensor has serious friction and abrasion, step error, low resolution and short service life, and the measured data is easily influenced by temperature and humidity; the capacitance displacement sensor has small measuring range and non-linear error; the sensitivity, the linearity and the measurement range of the inductive displacement sensor are mutually restricted, the frequency response of the sensor is low, and the requirements on the frequency and the amplitude stability of a power supply of a sensor coil are high; the resistance-type displacement sensor has a small measurement range, the displacement measuring device has various defects, meanwhile, the electronic speed regulating system and the force measuring device are pneumatically driven by a motor or an air cylinder in the whole process, the time from the moment that the composite film bag is driven to break by tensile force is short, the test process is irreversible, the testing machine cannot accurately acquire various data values, the manual operation cannot control the test process, the composite film bag detection device is not suitable for accurate measurement of composite film bag detection, and a tensile testing machine for composite film bag detection is urgently needed to finely adjust the detection process and record complete accurate data for material analysis.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a tensile testing machine for detecting a composite film bag for food packaging, which solves the problems.
The technical scheme of the invention is as follows: tensile testing machine that food package detected usefulness with compound membrane bag includes:
a main body;
the clamp comprises a fixed clamp and a movable clamp and is used for clamping the composite film bag to be tested, wherein the movable clamp is connected with the automatic stretching mechanism;
the pressure sensor is connected with the fixed clamp and the main body and used for detecting the tensile force of the composite film bag;
the infrared emitter is vertically arranged at the lower part of the movable clamp, and the graduated scale is arranged in parallel along the moving track direction of the movable clamp and used for assisting in detecting the deformation length of the composite film bag;
the automatic stretching mechanism is arranged on the main body and used for stretching the composite film bag;
the fine adjustment mechanism is arranged in the side cavity of the main body, is connected with the automatic stretching mechanism and is used for manually fine adjusting and stretching the composite film bag;
the locking mechanism is arranged in the side cavity of the main body and used for locking the screw rod rotating shaft during automatic stretching switching and manual stretching fine adjustment;
and the control instrument panel is used for receiving the collected signals, performing linkage control and displaying the tested tension value.
As a further improvement of the technical scheme of the invention, the clamp further comprises a clamp supporting frame, a connector and a bracket, wherein one end of the clamp supporting frame is fixedly arranged at the top of the bracket through the connector, the bracket is connected with the automatic stretching mechanism, and the other end of the clamp supporting frame is provided with the movable clamp.
As a further improvement of the technical proposal of the invention, the automatic stretching mechanism comprises a screw rod, a transmission gear, a driving gear, a servo motor, a stretching button, a slide block, a sliding base and a screw rod gear, the screw rod is arranged on the main body and comprises a screw rod and a slide rail, the screw rod and the slide rail are arranged side by side, the screw rod is rotationally connected with a bearing in the side cavity of the main body, the screw rod is provided with a slide block matched with the screw rod, the slide rail is provided with a slide base, the slide base is fixedly connected with the slide block, can be used for driving the movable clamp, one end of the screw rod is fixedly connected with a transmission gear, the other end of the screw rod is fixedly connected with a screw rod gear, the transmission gear is meshed with a driving gear, the driving gear is powered by a servo motor, the stretching button is fixedly arranged on the surface of the main body, the stretching button is electrically connected with the input port of the control instrument panel and used for controlling the operation of the servo motor.
As a further improvement of the technical scheme, in order to realize fine adjustment of the force degree, a fine adjustment mechanism is added, the fine adjustment mechanism comprises a fine adjustment knob, a first gear, a second gear and a third gear, wherein the second gear and the third gear are fixedly connected through a connecting rod, the fine adjustment knob is installed on the surface of a main body and fixedly connected with the first gear, the first gear is meshed with a second gear in a side cavity of the main body, the third gear is meshed with a lead screw gear, the fine adjustment mechanism is convenient for the composite membrane bag to manually apply force near a preset pressure value, the observation of various parameter values in the tensile test process is convenient, the accurate reading is realized, meanwhile, the fine adjustment knob can be directly opposite to a tester through the fine adjustment mechanism, the operation of the tester is convenient, and the design is reasonable.
As a further improvement of the technical scheme of the invention, in order to realize the parking of the automatic stretching mechanism, a locking mechanism is added, the locking mechanism comprises a giant magnetostrictive driver, a cavity, a pressing block, a damping block, a movable column and a pressing block retraction cavity, the giant magnetostrictive driver is fixedly connected with the cavity, the cavity is fixedly arranged on the inner wall of the side cavity of the main body through a fixing piece, an output shaft of the giant magnetostrictive driver is connected with the movable column, the movable column is fixedly connected with the pressing block, the damping block is fixedly arranged at the bottom of the pressing block, the damping block is arranged on the outer side of the lead screw, so that the lead screw is locked when the giant magnetostrictive driver acts to press the pressing block, the automatic stretching mechanism is locked, the giant magnetostrictive driver is electrically connected with the output driving end of the control instrument panel, the giant magnetostrictive driver pushes out the movable column to push out the pressing block when power is on, and the giant magnetostrictive driver retracts the movable column when the power is off, and the pressing block is retracted into the pressing block retraction cavity.
As a further improvement in the technical scheme of the invention, the locking mechanism is optimized, the main body is further provided with a foot switch, a relay KM is connected between the giant magnetostrictive driver and the output drive end of the control instrument panel, the giant magnetostrictive driver is electrically connected with the output drive end of the control instrument panel and the normally closed end of the relay KM, and the coil end of the relay KM is connected with the foot switch in series and then is connected with a power supply for opening or closing the locking mechanism.
As a further improvement in the technical scheme of the invention, one side of the main body is fixedly connected with a connecting block, the inside of the connecting block is of a hollow structure, one end of the connecting block is connected with a rod piece in a ball way, the other end of the rod piece is fixedly connected with a pressure sensor, the pressure sensor is connected with a fixing clamp, and the fixing clamp can rotate around the connecting block.
As a further improvement in the technical scheme of the invention, the surface of the main body is also provided with a start-stop button, so that the equipment can be stopped in time when emergency situations occur, and accidents are reduced.
As a further improvement in the technical scheme of the invention, the main body is internally provided with a power supply for supplying power to the equipment.
As a further improvement in the technical scheme of the invention, the control instrument panel comprises a main control unit, a display screen and an input module which are respectively used for data operation processing, linkage control, pressure display and preset value input.
The invention has the advantages that: the stretching process can be divided into two links through the automatic stretching mechanism and the fine adjustment mechanism, fine adjustment of force is realized, the fine adjustment mechanism is convenient for the composite film bag to manually apply force near a preset pressure value, each parameter value in the stretching test process is convenient to observe, accurate reading is realized, and the study of the stress-strain curve of the composite film bag sample in the stretching process is favorably completed; the locking mechanism can be used for locking the screw rod rotating shaft during automatic stretching switching and manual stretching fine adjustment, and the composite film bag is prevented from being damaged due to dislocation and influencing the test result.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is a schematic view of the fine adjustment mechanism of the present invention;
FIG. 4 is a side view of the fine adjustment mechanism attachment of the present invention;
FIG. 5 is a schematic view of the locking mechanism connection of the present invention;
FIG. 6 is a schematic view of the internal connection of the locking mechanism of the present invention;
FIG. 7 is a schematic diagram of the electrical control function of the present invention;
reference numerals: the device comprises a main body 1, a clamp 2, a fixed clamp 20, a clamp support frame 21, a connector 22, a support 23, a movable clamp 24, a pressure sensor 3, an infrared emitter 40, a graduated scale 41, an automatic stretching mechanism 5, a screw rod 51, a screw rod 510, a sliding rail 511, a transmission gear 52, a driving gear 53, a servo motor 54, a stretching button 55, a sliding block 56, a sliding base 57, a screw rod gear 58, a fine adjustment mechanism 6, a fine adjustment knob 61, a first gear 62, a second gear 63, a third gear 64, a locking mechanism 7, a giant magnetostrictive actuator 71, a cavity 72, a pressing block 73, a damping block 74, a movable column 75, a pressing block retraction cavity 76, a connecting block 8, a control instrument panel 9, a start-stop button 10, a foot switch 11 and a relay KM.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1, please refer to fig. 1-7, a tensile testing machine for detecting a composite film bag for food packaging comprises a main body 1; the fixture 2 comprises a fixed fixture 20 and a movable fixture 24 and is used for clamping the composite film bag to be tested, wherein the movable fixture 24 is connected with the automatic stretching mechanism 5; the pressure sensor 3 is connected with the fixing clamp 20 and the main body 1 and is used for detecting the tensile force of the composite film bag; the infrared emitter 40 is vertically arranged at the lower part of the movable clamp 24, and the graduated scale 41 is arranged in parallel along the advancing track direction of the movable clamp 24 and used for assisting in detecting the deformation length of the composite film bag; the automatic stretching mechanism 5 is arranged on the main body 1 and used for stretching the composite membrane bag, wherein the automatic stretching mechanism 5 comprises a screw rod 51, a transmission gear 52, a driving gear 53, a servo motor 54, a stretching button 55, a slider 56, a sliding base 57 and a screw rod gear 58, the screw rod 51 is arranged on the main body 1, the screw rod 51 comprises a screw rod 510 and a sliding rail 511, the screw rod 510 and the sliding rail 511 are arranged side by side, the screw rod 510 is rotatably connected with a side cavity bearing of the main body 1, the screw rod 510 is provided with the slider 56 matched with the screw rod 510, the sliding rail 511 is provided with the sliding base 57, the sliding base 57 is fixedly connected with the slider 56 and can be used for driving the movable clamp 24, one end of the screw rod 510 is fixedly connected with the transmission gear 52, the other end of the screw rod gear 58 is fixedly connected with, the transmission gear 52 is engaged with the driving gear 53, the driving gear 53 is powered by the servo motor 54, the stretching button 55 is fixedly arranged on the surface of the main body 1, and the stretching button 55 is electrically connected with an input port of a control instrument panel 9 for receiving collected signals, performing linkage control and displaying a tested stretching force value and is used for controlling the operation of the servo motor 54; the fine adjustment mechanism 6 is arranged in the side cavity of the main body 1, is connected with the automatic stretching mechanism 5 and is used for manually fine adjusting and stretching the composite film bag to accurately read the number; the locking mechanism 7 is arranged in a side cavity of the main body 1 and used for locking a lead screw rotating shaft during automatic stretching switching manual stretching fine adjustment, wherein the locking mechanism 7 comprises a giant magnetostrictive driver 71, a cavity 72, a pressing block 73, a damping block 74, a movable column 75 and a pressing block retraction cavity 76, the giant magnetostrictive driver 71 is fixedly connected with the cavity 72, the cavity 72 is fixedly arranged on the inner wall of the side cavity of the main body 1 through a fixing piece, an output shaft of the giant magnetostrictive driver 71 is connected with the movable column 75, the movable column 75 is fixedly connected with the pressing block 73, the damping block 74 is fixedly arranged at the bottom of the pressing block 73, the damping block 74 is arranged on the outer side of the lead screw 510, so that the lead screw 510 is locked when the giant magnetostrictive driver 71 acts to press the pressing block 73, the automatic stretching mechanism 5 is locked, the giant magnetostrictive driver 71 is electrically connected with an output driving end of a control instrument panel 9, and the giant magnetostrictive driver 71 pushes the movable column 75 out of the pressing block 73 when electricity is obtained, when the power is lost, the giant magnetostrictive actuator 71 retracts the movable column 75, and retracts the pressing block 73 into the pressing block retraction cavity 76.
In this embodiment, refer to fig. 3 and 4, fine adjustment mechanism 6 includes fine setting knob 61, first gear 62, second gear 63 and third gear 64, and wherein second gear 63 and third gear 64 pass through connecting rod fixed connection, fine setting knob 61 is installed in main part 1 surface, fine setting knob 61 and first gear 62 fixed connection, first gear 62 meshes with the second gear 63 of main part 1 side intracavity, third gear 64 meshes with lead screw gear 58, and the compound membrane bag of being convenient for through fine adjustment mechanism 6 is close to the manual application of force of preset pressure value, is convenient for observe each parameter value in the tensile test process, realizes accurate reading, can just be to the testing personnel with fine setting knob 61 through fine adjustment mechanism 6 simultaneously, makes things convenient for the testing personnel to operate, reasonable in design.
In this embodiment, the fixture 2 further comprises a fixture support frame 21, a connector 22 and a bracket 23, wherein one end of the fixture support frame 21 is fixedly installed at the top of the bracket 23 through the connector 22, the bracket 23 is connected with the automatic stretching mechanism 5, and the other end of the fixture support frame 21 is provided with a movable fixture 24.
In a further improvement of this embodiment, the main body 1 is further provided with a foot switch 11, a relay KM is connected between the giant magnetostrictive actuator 71 and the output and drive end of the control instrument panel 9, the giant magnetostrictive actuator 71 is electrically connected with the output and drive end of the control instrument panel 9 and the normally closed end of the relay KM, and a coil end of the relay KM is connected in series with the foot switch 11 and then is connected to a power supply for turning on or off the locking mechanism 7.
Further improvement in this embodiment, 1 one side fixedly connected with connecting block 8 of main part, the inside hollow structure that is of connecting block 8, 8 one end balls of connecting block are connected with the member, member other end fixed connection pressure sensor 3, pressure sensor 3 connects and decides anchor clamps 20, decides anchor clamps 20 and can rotate around connecting block 8, is convenient for be fit for various different tests.
Preferably, the surface of the main body 1 is further provided with a start-stop button 10, so that the equipment can be stopped in time when emergency situations occur, and accidents are reduced.
In the embodiment, the main body 1 is internally provided with a power supply for supplying power to equipment; the control instrument panel 9 comprises a main control unit, a display screen and an input module, which are respectively used for data operation processing, linkage control, pressure display and preset value input.
The working principle is as follows:
when the device is used, a composite film bag to be tested is placed in the clamp 2 to be clamped, a preset pressure value can be input into the control instrument panel 9, the stretching button 55 is pressed down, the servo motor 54 is electrified to drive the driving gear 53 to rotate, so that the movable clamp 24 on the screw rod 51 is driven to translate, the composite film bag is stretched, in the stretching process, the pressure sensor 3 on one side of the fixed clamp 20 collects a stretching force value in real time and is displayed by the display screen on the control instrument panel 9, when the stretching force collected by the pressure sensor 3 reaches the preset pressure value, the servo motor 54 is controlled to be powered off by the main control unit in the instrument panel 9, the giant magnetostrictive driver 71 of the locking mechanism 7 is simultaneously electrified, the giant magnetostrictive driver 71 is electrically pushed out of the movable column 75, the pressure is applied to the pressure block 73 and the damping block 74, the screw rod 510 is locked, and when the automatic stretching process is finished and the manual fine adjustment is switched, the fine adjustment knob 61 is manually held, then foot pedal switch 11 is stepped on to the foot, normally closed relay KM that is connected with foot switch 11 gets the electricity disconnection, giant magnetostrictive actuator 71 loses the electricity this moment, withdrawal briquetting 71 loosens locking mechanism 7, last slow application of force in fine setting knob 61, observe simultaneously that the scale 41 registration that infrared emitter 40 points and control panel board 9 show tensile force indicating value, measure many times and in time record each value and be convenient for follow-up data arrangement, accomplish the meticulous measurement test to the composite film bag, the data that obtain is more accurate and experimental more controllable, the degree of accuracy that has improved the detection greatly.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. Food package detects tensile testing machine of usefulness with compound membrane bag, its characterized in that includes:
a main body (1);
the fixture (2) comprises a fixed fixture (20) and a movable fixture (24) and is used for clamping the composite membrane bag to be tested, wherein the movable fixture (24) is connected with the automatic stretching mechanism (5);
the pressure sensor (3) is connected with the fixing clamp (20) and the main body (1) and is used for detecting the tensile force of the composite film bag;
the infrared emitter (40) is vertically arranged at the lower part of the movable clamp (24), and the graduated scale (41) is arranged in parallel along the moving track direction of the movable clamp (24);
the automatic stretching mechanism (5) is arranged on the main body (1) and is used for stretching the composite film bag;
the fine adjustment mechanism (6) is arranged in a side cavity of the main body (1), is connected with the automatic stretching mechanism (5) and is used for manually fine-adjusting and stretching the composite film bag;
the locking mechanism (7) is arranged in the side cavity of the main body (1) and used for locking the screw rod rotating shaft;
and the control instrument panel (9) is used for receiving the collected signals, performing linkage control and displaying the tested tension value.
2. The tensile tester for testing the composite film bag for food packaging according to claim 1, wherein: anchor clamps (2) still include anchor clamps support frame (21), connector (22) and support (23), anchor clamps support frame (21) one end is passed through connector (22) fixed mounting in support (23) top, support (23) link to each other with automatic stretching mechanism (5), anchor clamps (24) are installed to anchor clamps support frame (21) other end.
3. The tensile tester for testing the composite film bag for food packaging according to claim 1, wherein: the automatic stretching mechanism (5) comprises a screw rod (51), a transmission gear (52), a driving gear (53), a servo motor (54), a stretching button (55), a sliding block (56), a sliding base (57) and a screw rod gear (58), the screw rod (51) is installed on the main body (1), the screw rod (51) comprises a screw rod (510) and a sliding rail (511), the screw rod (510) and the sliding rail (511) are installed side by side, the screw rod (510) is rotatably connected with a side cavity bearing of the main body (1), the sliding block (56) matched with the screw rod (510) is arranged on the screw rod (510), the sliding base (57) is arranged on the sliding rail (511), the sliding base (57) is fixedly connected with the sliding block (56) and can be used for driving the clamp (24), the transmission gear (52) is fixedly connected with one end of the screw rod (510), and the screw rod gear (58) is fixedly connected with the other end of the screw rod gear, the driving gear (52) is meshed with the driving gear (53), the driving gear (53) is powered by the servo motor (54), the stretching button (55) is fixedly installed on the surface of the main body (1), and the stretching button (55) is electrically connected with an input port of the control instrument panel (9) and used for controlling the servo motor (54) to operate.
4. The tensile tester for testing the composite film bag for food packaging according to claim 1, wherein: fine adjustment mechanism (6) are including fine setting knob (61), first gear (62), second gear (63) and third gear (64), wherein second gear (63) and third gear (64) pass through connecting rod fixed connection, install in main part (1) surface fine setting knob (61), fine setting knob (61) and first gear (62) fixed connection, second gear (63) meshing in first gear (62) and main part (1) side intracavity, third gear (64) and lead screw gear (58) meshing, be convenient for compound membrane bag through fine setting mechanism (6) and close on the manual application of force of predetermineeing the pressure value, be convenient for observe each parameter value among the tensile test process, realize accurate reading, can be just to the tester with fine setting knob (61) through fine setting mechanism (6) simultaneously, make things convenient for the tester to operate reasonable in design.
5. The tensile tester for testing the composite film bag for food packaging according to claim 1, wherein: the locking mechanism (7) comprises a giant magnetostrictive driver (71), a cavity (72), a pressing block (73), a damping block (74), a movable column (75) and a pressing block retraction cavity (76), the giant magnetostrictive driver (71) is fixedly connected with the cavity (72), the cavity (72) is fixedly installed on the inner wall of the side cavity of the main body (1) through a fixing piece, an output shaft of the giant magnetostrictive driver (71) is connected with the movable column (75), the movable column (75) is fixedly connected with the pressing block (73), the damping block (74) is fixedly installed at the bottom of the pressing block (73), the damping block (74) is arranged on the outer side of the lead screw (510), so that the lead screw (510) is locked when the giant magnetostrictive driver (71) acts to press the pressing block (73), the automatic stretching mechanism (5) is locked, and the giant magnetostrictive driver (71) is electrically connected with the output driving end of the control instrument panel (9), when the power is on, the giant magnetostrictive actuator (71) ejects the movable column (75) to push out the pressing block (73), when the power is off, the giant magnetostrictive actuator (71) retracts the movable column (75), and the pressing block (73) is retracted into the pressing block retraction cavity (76).
6. The tensile tester for testing the composite film bag for food packaging according to claim 1, wherein: the main part (1) is further provided with a foot switch (11), a relay (KM) is connected between the giant magnetostrictive actuator (71) and the output and drive end of the control instrument panel (9), the giant magnetostrictive actuator (71) is electrically connected with the output and drive end of the control instrument panel (9) and the normally closed end of the relay (KM), and the coil end of the relay (KM) is connected with the foot switch (11) in series and then is connected with a power supply for starting or closing the locking mechanism (7).
7. The tensile tester for testing the composite film bag for food packaging according to claim 1, wherein: main part (1) one side fixedly connected with connecting block (8), connecting block (8) are inside to be hollow structure, connecting block (8) one end ball is connected with the member, member other end fixed connection pressure sensor (3), anchor clamps (20) are decided in pressure sensor (3) connection, decide anchor clamps (20) and can rotate around connecting block (8).
8. The tensile tester for testing the composite film bag for food packaging according to claim 1, wherein: the control instrument panel (9) comprises a main control unit, a display screen and an input module, and the main control unit, the display screen and the input module are respectively used for data operation processing, linkage control, pressure display and preset value input.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111292874.5A CN114184472A (en) | 2021-11-03 | 2021-11-03 | Tensile testing machine for detecting composite film bag for food packaging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111292874.5A CN114184472A (en) | 2021-11-03 | 2021-11-03 | Tensile testing machine for detecting composite film bag for food packaging |
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| Publication Number | Publication Date |
|---|---|
| CN114184472A true CN114184472A (en) | 2022-03-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111292874.5A Pending CN114184472A (en) | 2021-11-03 | 2021-11-03 | Tensile testing machine for detecting composite film bag for food packaging |
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| CN (1) | CN114184472A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116380671A (en) * | 2023-06-05 | 2023-07-04 | 山东润芙制衣有限公司 | Tensile detector for clothing fabric |
-
2021
- 2021-11-03 CN CN202111292874.5A patent/CN114184472A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116380671A (en) * | 2023-06-05 | 2023-07-04 | 山东润芙制衣有限公司 | Tensile detector for clothing fabric |
| CN116380671B (en) * | 2023-06-05 | 2023-08-29 | 山东润芙制衣有限公司 | Tensile detector for clothing fabric |
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