CN110672407A - Tensile testing machine for detecting stretching degree of packaging bag - Google Patents
Tensile testing machine for detecting stretching degree of packaging bag Download PDFInfo
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- CN110672407A CN110672407A CN201911023081.6A CN201911023081A CN110672407A CN 110672407 A CN110672407 A CN 110672407A CN 201911023081 A CN201911023081 A CN 201911023081A CN 110672407 A CN110672407 A CN 110672407A
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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
- G01N3/04—Chucks
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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
- G01N3/22—Investigating strength properties of solid materials by application of mechanical stress by applying steady torsional forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0026—Combination of several types of applied forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/04—Chucks, fixtures, jaws, holders or anvils
- G01N2203/0411—Chucks, fixtures, jaws, holders or anvils using pneumatic or hydraulic pressure
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0676—Force, weight, load, energy, speed or acceleration
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Examining Or Testing Airtightness (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention discloses a tension testing machine for detecting the stretching degree of a packaging bag, which comprises a base, a first motor, a pressure sensor, a second motor and a torque sensor, wherein the top of the base is fixedly connected with a support, a liquid tank is formed in the base, the end part of an output shaft of the first motor is coaxially connected with a screw rod, the top of the base is fixedly connected with a positioning pipe, the end part of the positioning pipe is provided with a positioning piece, a rotating roller is arranged on the support, the end part of the rotating roller is fixedly provided with a positioning disc, the outer wall of the rotating rod in the positioning disc is provided with a ratchet wheel, the second motor is fixedly arranged at the center of the top of the support, and the end part of the output shaft of the second motor is fixedly connected with one. This tensile degree of wrapping bag detects uses tensile testing machine is convenient for carry out the both sides location centre gripping of wrapping bag, improves the location centre gripping stability of wrapping bag, and the tensile degree of rotation type detects, reduces the whole volume size of device.
Description
Technical Field
The invention relates to the technical field of packaging bag detection, in particular to a tensile testing machine for detecting the stretching degree of a packaging bag.
Background
The packaging bag is a packaging isolation tool before transporting and storing objects such as products, equipment and the like, can effectively isolate the products, the equipment and the external environment from each other through the use of the packaging bag, can uniformly store the products and the equipment, avoids the loss in the transporting and storing process and the damage of the use property caused by the influence of the external environment, and shortens the service life of the product, after the production and processing of the packaging bag are finished, in order to ensure that the use of the packaging bag meets the quality requirement of the application of the packaging bag, the mechanical detection of the stretching degree of the packaging bag is needed, the average stretching degree of the packaging bag in production is known, the adjustment of the production machinery is convenient, and the quality of the packaging bag is comprehensively detected, so that the use and production quality of the packaging bag can reach the required use quality, and the problems that the use and final use and sale of the packaging bag are influenced due to the defect of the use performance of the packaging bag in continuous production and processing are avoided.
However, the existing tensile testing machine for detecting the tensile degree of the packaging bag has the following problems when in use:
1. the use, clamping and positioning of the packaging bag are inconvenient, so that the stability of reinforcement is not high, the connection and the falling of the packaging bag in the process of stretching detection of the packaging bag are easily caused, the operation error exists in the final detection data, and the rapid detection of the stretching degree of the packaging bag is influenced;
2. when carrying out the tensile operation of wrapping bag for the packing carries out the both sides in the coplanar tensile, carries out the tensile detection of wrapping bag with its tensile structure, makes the whole preparation volume grow of device, and it is big to cause the use of device to deposit occupation space, is unfavorable for depositing and transporting of device, causes the inconvenience of detection achievement simultaneously.
In order to solve the problems, innovative design is urgently needed on the basis of the original tensile testing machine for detecting the tensile degree of the packaging bag.
Disclosure of Invention
The invention aims to provide a tension tester for detecting the stretching degree of a packaging bag, which solves the problems that the packaging bag of the tension tester for detecting the stretching degree of the packaging bag in the prior art is inconvenient to clamp and position, so that the stability of the reinforcement of the packaging bag is not high, the packaging bag is easy to be connected and fall off in the process of stretching detection of the packaging bag, the operation error exists in the final detection data, the rapid detection of the stretching degree of the packaging bag is influenced, when the packaging bag is stretched, the packaging bag is stretched on two sides in the same plane, the stretching structure is used for stretching detection of the packaging bag, the integral manufacturing volume of the device is enlarged, the occupied space for using and storing the device is large, the storage and the transportation of the device are not facilitated, and the detection work is inconvenient.
In order to achieve the purpose, the invention provides the following technical scheme: a tension testing machine for detecting the stretching degree of a packaging bag comprises a base, a first motor, a pressure sensor, a second motor and a torque sensor, wherein a support is fixedly connected to the top of the base, a liquid tank is formed in the base, the first motor is fixedly installed at the center of the liquid tank, a lead screw is coaxially connected to the end portion of an output shaft of the first motor, a push plate is sleeved on the outer wall of the lead screw and is positioned in the liquid tank, a positioning pipe is fixedly connected to the top of the base, a positioning part is arranged at the end portion of the positioning pipe, a first elastic part is connected between the positioning part and the end portion of the positioning pipe, the pressure sensor is fixed on the inner wall of the lower end of the positioning part in an embedded mode, a rotating roller is arranged on the support, a rotating rod is arranged in the middle of the rotating roller, a circular disc is fixed on the, simultaneously through connection between holder and the outer wall of commentaries on classics roller, the end fixing of commentaries on classics roller has the positioning disk, and is provided with the ratchet on the bull stick outer wall in the positioning disk to install the screw rod on the outer wall of positioning disk, and the lower extreme of screw rod is inside to pass through second elastic component fixedly connected with locating pin moreover, second motor fixed mounting is in the top center department of support, and the output shaft tip of second motor passes through the one end of shaft coupling fixedly connected with horizontal pole to the other end bearing of horizontal pole connects on the support, torque sensor installs in the outside edge of shaft coupling and horizontal pole junction, and is fixed with the gear on the outer wall of horizontal pole to the horizontal pole passes through fixed connection between gear and the chain belt and the tip outer wall of commentaries on classics.
Preferably, the lead screw is symmetrically arranged on the first motor, the directions of the lead screws at the two ends of the first motor are opposite, the middle parts of the lead screw and the push plate are in threaded connection with each other in a penetrating mode, and the outer wall of the push plate is in sliding connection with the inner wall of the liquid tank in a sealing and fitting mode.
Preferably, the positioning tube is arranged to be of a right-angled hook-shaped structure, the inside of the positioning tube is communicated with the inside of the liquid tank, the positioning tube and the positioning piece form a relative telescopic structure, and the projection plane where the positioning piece is located and the projection plane where the rotating roller is located are in dislocation parallel.
Preferably, the bottom of the positioning piece is of a plate-shaped structure, a rubber pad is embedded in the bottom of the positioning piece, and a pressure sensor is fixedly arranged between the positioning piece and the rubber pad.
Preferably, the rotary roller and the support, and the rotary roller and the rotary rod are connected through a bearing, and the rotary roller is internally hollow and is superposed with the rotary rod through the central axis.
Preferably, the side cross-section of holder sets up to "T" style of calligraphy structure, and the "T" style of calligraphy tip of holder sets up to the arc structure of laminating mutually with changeing the roller outer wall to the holder sets up to the extending structure who runs through with changeing the roller, and holder and connecting rod and disc are the rotating-structure that the pivot is connected moreover.
Preferably, the outer wall of screw rod and positioning disk is for the threaded connection that runs through, and is elastic telescopic connection between screw rod and the locating pin to positioning disk and ratchet coaxial arrangement leave the interval between the two moreover.
Preferably, the cross rod and the rotating roller are positioned in the same vertical projection plane, the cross rod and the rotating roller are arranged in parallel, and gears on the outer sides of the cross rod and the rotating roller are connected with each other through chain belts.
Compared with the prior art, the invention has the beneficial effects that: the tensile testing machine for detecting the stretching degree of the packaging bag is convenient for positioning and clamping two sides of the packaging bag, improves the positioning and clamping stability of the packaging bag, is convenient for performing stretching detection work, detects the stretching degree in a rotating mode, and reduces the whole volume size of the device;
1. the sealing, laminating and sliding connection between the push plate and the liquid tank is only needed, when the position of the push plate is changed, oil in the liquid tank is led into the positioning pipe, the positioning piece and the positioning pipe move telescopically relative to each other, the positioning and clamping effect on one side of the packaging bag is realized through the positioning piece, the clamping stability of detection is improved, meanwhile, the unidirectional rotating structure of the rotating rod is utilized, the rotating rod enables the clamping piece and the rotating roller to perform penetrating telescopic movement when rotating, the other side of the packaging bag is positioned and clamped on the outer wall of the rotating roller, the good clamping effect of the packaging bag is achieved, and subsequent rotary stretching detection work is facilitated;
2. under the screw thread mounting structure effect of ratchet and dismantlement formula, be convenient for carry out the spacing of direction of rotation and relieve to the bull stick, the installation and the dismantlement of the wrapping bag of being convenient for are used, and the roller carries out the rotatory tensile time measuring of wrapping bag when rotating along with the rotation of second motor simultaneously, and pressure sensor and torque sensor's combined action realizes the real-time accurate detection when the wrapping bag is tensile, and the convenient effect that goes on that detects work lasts.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic side view of the present invention;
FIG. 3 is a schematic view of a connection structure of a positioning member and a positioning tube according to the present invention;
FIG. 4 is a schematic view of a screw mounting structure of the present invention;
fig. 5 is a schematic view of a mounting structure of the clamping member of the present invention.
In the figure: 1. a base; 2. a support; 3. a liquid bath; 4. a first motor; 5. a screw rod; 6. pushing the plate; 7. a positioning tube; 8. a positioning member; 9. a first elastic member; 10. a pressure sensor; 11. rotating the roller; 12. a rotating rod; 13. a disc; 14. a connecting rod; 15. a clamping member; 16. a ratchet wheel; 17. a screw; 18. a second elastic member; 19. positioning pins; 20. a second motor; 21. a coupling; 22. a cross bar; 23. a torque sensor; 24. a gear; 25. a chain belt; 26. and (6) positioning a disc.
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.
Referring to fig. 1-5, the present invention provides a technical solution: a tension tester for detecting the stretching degree of a packaging bag comprises a base 1, a support 2, a liquid tank 3, a first motor 4, a screw rod 5, a push plate 6, a positioning pipe 7, a positioning part 8, a first elastic part 9, a pressure sensor 10, a rotating roller 11, a rotating rod 12, a disc 13, a connecting rod 14, a clamping part 15, a ratchet wheel 16, a screw rod 17, a second elastic part 18, a positioning pin 19, a second motor 20, a coupler 21, a cross rod 22, a torque sensor 23, a gear 24, a chain belt 25 and a positioning disc 26, wherein the support 2 is fixedly connected to the top of the base 1, the liquid tank 3 is arranged in the base 1, the first motor 4 is fixedly arranged at the center of the liquid tank 3, the screw rod 5 is coaxially connected to the end part of an output shaft of the first motor 4, the push plate 6 is sleeved on the outer wall of the screw rod 5, the push plate 6 is positioned in the liquid tank 3, the positioning pipe 7 is, a first elastic part 9 is connected between the positioning part 8 and the pipe end of the positioning pipe 7, a pressure sensor 10 is fixed on the inner wall of the lower end of the positioning part 8 in an embedded manner, a rotating roller 11 is arranged on the bracket 2, a rotating rod 12 is arranged in the middle of the rotating roller 11, a disc 13 is fixed on the outer wall of the rotating rod 12, the edge of the outer wall of the disc 13 is connected with a clamping part 15 through a connecting rod 14, the clamping part 15 is connected with the outer wall of the rotating roller 11 in a penetrating manner, a positioning disc 26 is fixed on the end part of the rotating roller 11, a ratchet wheel 16 is arranged on the outer wall of the rotating rod 12 in the positioning disc 26, a screw rod 17 is arranged on the outer wall of the positioning disc 26, a positioning pin 19 is fixedly connected inside the lower end of the screw rod 17 through a second elastic part 18, a second motor 20 is fixedly arranged at the center of the top of the bracket 2, and one, and the other end bearing of the cross bar 22 is connected to the bracket 2, the torque sensor 23 is installed at the outer edge of the joint of the coupler 21 and the cross bar 22, a gear 24 is fixed on the outer wall of the cross bar 22, and the cross bar 22 is fixedly connected with the outer wall of the end part of the rotating roller 11 through the gear 24 and the chain belt 25.
Lead screw 5 symmetry sets up on first motor 4, and 5 trends towards opposite at the lead screw at 4 both ends of first motor, and be the threaded connection who runs through between the middle part of lead screw 5 and push pedal 6, and the outer wall of push pedal 6 and the sliding connection of the inner wall of cistern 3 for sealed laminating, registration arm 7 sets up to right angled hook-like structure, and through connection between the inside of registration arm 7 and cistern 3 inside, and registration arm 7 and setting element 8 constitute relative extending structure, and setting element 8 place plane of projection and commentaries on classics roller 11 place plane dislocation parallel, make lead screw 5 rotatory through the control of first motor 4, make the 6 relative motion of push pedal in its outside, the leading-in registration arm 7 of the inside liquid of cistern 3 through the promotion of push pedal 6, make the 8 concertina movement of the inside setting element of registration arm 7, reach the purpose of wrapping bag one side location centre gripping.
The bottom of the positioning piece 8 is arranged to be of a plate-shaped structure, the rubber pad is embedded in the bottom of the positioning piece 8, the pressure sensor 10 is fixedly installed between the positioning piece 8 and the rubber pad, the clamping and positioning stability of the packaging bag is improved, and meanwhile the detection of the stretching force is facilitated when the packaging bag is stretched after being clamped.
The roller 11 and the support 2 and the roller 11 and the rotating rod 12 are connected through bearings, the hollow structure of the roller 11 is arranged, the central axes of the roller 11 and the rotating rod 12 coincide with each other, the side section of the clamping piece 15 is arranged to be of a T-shaped structure, the T-shaped end of the clamping piece 15 is arranged to be of an arc structure which is attached to the outer wall of the roller 11, the clamping piece 15 and the roller 11 are arranged to be of a penetrating telescopic structure, the clamping piece 15, the connecting rod 14 and the disc 13 are rotating structures connected through rotating shafts, the clamping piece 15 is convenient to control the position, the clamping piece 15 and the roller 11 move relatively, the clamping piece 15 and the roller 11 are used for positioning and clamping one side of a packaging bag, meanwhile, the clamping piece 15 and the roller 11 are convenient to move synchronously, and the positioning and clamping and stretching effects of the packaging bag are achieved.
The outer wall of screw rod 17 and positioning disk 26 is the threaded connection who runs through, and be elastic telescopic connection between screw rod 17 and the locating pin 19 to positioning disk 26 and ratchet 16 coaxial setting leave the interval between the two in addition, the mutual block of screw rod 17 and ratchet 16 of being convenient for is connected, makes unidirectional rotation between the bull stick 12, and the direction location reaches the purpose of holder 15 position control.
The cross bar 22 and the rotary roller 11 are positioned in the same vertical projection plane, the cross bar 22 and the rotary roller 11 are arranged in parallel, and gears 24 on the outer sides of the cross bar 22 and the rotary roller 11 are connected with each other through a chain belt 25, so that the use static and rotary motion control of the rotary roller 11 is facilitated.
The working principle is as follows: when using the tensile testing machine for measuring the degree of elongation of the packaging bag, first, as shown in FIGS. 1 to 3, when one side of the packaging bag needs to be positioned and clamped, as shown in figure 1, the first motor 4 is started through the work of the first motor 4, the first motor 4 drives the screw rod 5 to rotate, because the push plate 6 is in threaded connection with the screw rod 5, the push plate 6 slides in the liquid tank 3 in a joint and sealing manner while the screw rod 5 rotates, so that the push plate 6 pushes the liquid in the liquid tank 3 to be led into the positioning pipe 7, as shown in fig. 2-3, the liquid introduced into the positioning tube 7 presses the positioning member 8, so that the positioning member 8 and the positioning tube 7 perform relative telescopic movement, and one side of the packing bag is clamped and fixed between the positioning member 8 and the base 1, meanwhile, the pressure sensor 10 in the positioning piece 8 can monitor the force borne by the packaging bag during stretching in real time;
according to fig. 1 and 4-5, when the other side of the packaging bag is clamped, the packaging bag is placed between the rotating roller 11 and the clamping piece 15, the rotating roller 11 is limited by the static second motor 20 and the cross bar 22 due to the engagement between the gear 24 and the chain belt 25, so that the rotating roller 11 and the base 1 keep moving still relatively, as shown in fig. 1 and 4, the rotating rod 12 is rotated manually, under the clamping connection action of the ratchet wheel 16 and the positioning pin 19, the ratchet wheel 16 on the outer side of the rotating rod 12 repeatedly contacts the positioning pin 19 when the rotating rod 12 rotates elastically, so that the rotating rod 12 and the screw 17 perform elastic telescopic motion under the action of the second elastic piece 18, the rotating rod 12 can only rotate in one direction, the reverse motion is limited, simultaneously, as shown in fig. 5, the disc 13 on the outer wall of the rotating rod 12 rotates synchronously, under the connection action of the connecting rod 14, the clamping piece 15 and the rotating roller 11 perform penetrating relative telescopic motion, reach the fixed centre gripping of the opposite side of wrapping bag in the purpose between holder 15 and commentaries on classics roller 11, when the dismantlement of wrapping bag needs to be carried out, through rotatory screw rod 17, carry out the dismantlement of screw rod 17, make locating pin 19 of screw rod 17 tip no longer rotate spacingly to ratchet 16 and bull stick 12, the use of the wrapping bag of being convenient for is dismantled, as shown in fig. 1, after the both sides centre gripping of wrapping bag is accomplished, through the start-up of second motor 20, second motor 20 drives horizontal pole 22 rotary motion through shaft coupling 21, because horizontal pole 22 is connected with commentaries on classics roller 11 meshing through gear 24 and chain belt 25, make and rotate roller 11 synchronous revolution when second motor 20 opens, carry out the tensile fixed of rotation type of wrapping bag, torque sensor 23 carries out real-time detection to the rotation moment of horizontal pole 22 simultaneously, thereby realize the real-time tensile.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (8)
1. The utility model provides a wrapping bag tensile degree detects uses tensile testing machine, includes base (1), first motor (4), pressure sensor (10), second motor (20) and torque sensor (23), its characterized in that: the top of the base (1) is fixedly connected with a support (2), a liquid tank (3) is arranged inside the base (1), a first motor (4) is fixedly arranged at the center of the liquid tank (3), a lead screw (5) is coaxially connected with the end part of an output shaft of the first motor (4), a push plate (6) is sleeved on the outer wall of the lead screw (5), the push plate (6) is positioned in the liquid tank (3), a positioning pipe (7) is fixedly connected with the top of the base (1), a positioning part (8) is arranged at the end part of the positioning pipe (7), a first elastic part (9) is connected between the positioning part (8) and the end part of the positioning pipe (7), a pressure sensor (10) is fixed on the inner wall of the lower end of the positioning part (8) in an embedded manner, a rotating roller (11) is arranged on the support (2), and a rotating rod (12) is, and a disc (13) is fixed on the outer wall of the rotating rod (12), the edge of the outer wall of the disc (13) is connected with a clamping piece (15) through a connecting rod (14), meanwhile, the clamping piece (15) is connected with the outer wall of the rotating roller (11) in a penetrating way, the end part of the rotating roller (11) is fixed with a positioning disc (26), a ratchet wheel (16) is arranged on the outer wall of the rotating rod (12) in the positioning disc (26), a screw rod (17) is installed on the outer wall of the positioning disc (26), a positioning pin (19) is fixedly connected inside the lower end of the screw rod (17) through a second elastic piece (18), the second motor (20) is fixedly installed at the center of the top of the support (2), the end part of an output shaft of the second motor (20) is fixedly connected with one end of a cross rod (22) through a coupler (21), and the other end of the cross rod (22) is, the torque sensor (23) is installed at the edge of the outer side of the joint of the coupler (21) and the cross rod (22), a gear (24) is fixed on the outer wall of the cross rod (22), and the cross rod (22) is fixedly connected with the outer wall of the end part of the rotating roller (11) through the gear (24) and the chain belt (25).
2. The tension tester for detecting the stretching degree of the packaging bag according to claim 1, wherein: the lead screw (5) is symmetrically arranged on the first motor (4), the directions of the lead screws (5) at the two ends of the first motor (4) are opposite, the middle parts of the lead screws (5) and the push plate (6) are connected through threads, and the outer wall of the push plate (6) is in sliding connection with the inner wall of the liquid tank (3) in a sealing and fitting manner.
3. The tension tester for detecting the stretching degree of the packaging bag according to claim 1, wherein: the positioning tube (7) is arranged to be of a right-angled hook-shaped structure, the interior of the positioning tube (7) is communicated with the interior of the liquid tank (3), the positioning tube (7) and the positioning piece (8) form a relative telescopic structure, and the projection plane where the positioning piece (8) is located and the projection plane where the rotating roller (11) is located are in dislocation parallel.
4. The tension tester for detecting the stretching degree of the packaging bag according to claim 1, wherein: the bottom of the positioning piece (8) is of a plate-shaped structure, a rubber pad is installed at the bottom of the positioning piece (8) in an embedded mode, and a pressure sensor (10) is fixedly installed between the positioning piece (8) and the rubber pad.
5. The tension tester for detecting the stretching degree of the packaging bag according to claim 1, wherein: the rotary roller (11) and the support (2) as well as the rotary roller (11) and the rotary rod (12) form a relative rotation structure connected by bearings, the hollow structure in the rotary roller (11) is arranged, and the central axes of the rotary roller (11) and the rotary rod (12) are overlapped.
6. The tension tester for detecting the stretching degree of the packaging bag according to claim 1, wherein: the side cross-section of holder (15) sets up to "T" style of calligraphy structure, and the "T" style of calligraphy tip of holder (15) sets up to the arc structure of laminating mutually with changeing roller (11) outer wall to holder (15) set up to the extending structure who runs through with changeing roller (11), and holder (15) and connecting rod (14) and disc (13) are the rotating-structure that the pivot is connected moreover.
7. The tension tester for detecting the stretching degree of the packaging bag according to claim 1, wherein: the outer wall of the screw rod (17) is in threaded connection with the outer wall of the positioning disc (26) in a penetrating mode, the screw rod (17) is in elastic telescopic connection with the positioning pin (19), the positioning disc (26) and the ratchet wheel (16) are coaxially arranged, and a space is reserved between the positioning disc and the ratchet wheel.
8. The tension tester for detecting the stretching degree of the packaging bag according to claim 1, wherein: the cross rod (22) and the rotary roller (11) are positioned in the same vertical projection plane, the cross rod (22) and the rotary roller (11) are arranged in parallel, and gears (24) on the outer sides of the cross rod and the rotary roller are connected with each other through chain belts (25).
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| CN201911023081.6A CN110672407B (en) | 2019-10-25 | 2019-10-25 | Tensile testing machine for detecting stretching degree of packaging bag |
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| CN201911023081.6A CN110672407B (en) | 2019-10-25 | 2019-10-25 | Tensile testing machine for detecting stretching degree of packaging bag |
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| CN110672407A true CN110672407A (en) | 2020-01-10 |
| CN110672407B CN110672407B (en) | 2022-03-08 |
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| CN112098207A (en) * | 2020-09-07 | 2020-12-18 | 杭州宜科智能科技有限公司 | Performance detection system for environment-friendly woven bag after forming |
| CN112432855A (en) * | 2020-11-25 | 2021-03-02 | 江西捷美软包装有限公司 | Tensile strength detector for high-temperature steaming bag |
| CN113405909A (en) * | 2021-06-15 | 2021-09-17 | 上海大学 | Device for rubber support sample wafer feedback type tension test |
| CN114486498A (en) * | 2022-02-21 | 2022-05-13 | 江苏普乐菲新材料有限公司 | Elasticity performance test equipment for sports rigging |
| CN116678777A (en) * | 2023-08-03 | 2023-09-01 | 常州富安切削技术有限公司 | Wear resistance testing device and method for PVD (physical vapor deposition) cutter coating |
| CN117268924A (en) * | 2023-11-22 | 2023-12-22 | 天津大宇包装制品有限公司 | Multilayer paper valve port bag intensity detection device |
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