CN219694743U

CN219694743U - Device for detecting tensile strength of plastic

Info

Publication number: CN219694743U
Application number: CN202321160963.9U
Authority: CN
Inventors: 彭伟伟; 周奇洋; 张辉闪; 文斌; 丁永江
Original assignee: Ningbo Ecot Sci & Tech Co ltd
Current assignee: Ningbo Ecot Sci & Tech Co ltd
Priority date: 2023-05-15
Filing date: 2023-05-15
Publication date: 2023-09-15
Anticipated expiration: 2033-05-15

Abstract

The utility model discloses a device for detecting tensile strength of plastic, which relates to the technical field of plastic product detection and comprises an operation table and a slideway arranged on the operation table, wherein a fixed seat and a movable seat are fixedly connected to the operation table, and clamping mechanisms for clamping one end of a plastic film are arranged in the fixed seat and the movable seat. The pulley at the top of the movable rod is extruded through the inclined planes of the two inclined grooves to push the two clamping plates to descend in the fixed seat and the movable seat respectively to clamp and fix the two ends of the plastic film, and the movable seat is pushed to move away from the fixed seat through the continuous keeping away of the U-shaped frame to detect the tensile strength of the plastic film clamped between the fixed seat and the movable seat, and the device replaces the traditional mode of manually adjusting the screw to fix the plastic film, so that the detection efficiency is improved.

Description

Device for detecting tensile strength of plastic

Technical Field

The utility model relates to the technical field of plastic product detection, in particular to a device for detecting tensile strength of plastic.

Background

The plastic is a polymer compound which is polymerized by taking monomers as raw materials through polyaddition or polycondensation reaction, the deformation resistance is medium, the polymer compound is between fibers and rubber, the polymer compound consists of synthetic resin, filler, plasticizer, stabilizer, lubricant, pigment and other additives, the plastic film is a film made of polyvinyl chloride, polyethylene, polypropylene, polystyrene and other resins, the film is used for packaging, and is used as a film coating layer, the plastic package and plastic package products occupy larger and larger share in the market, in particular to a composite plastic flexible package, and the polymer compound plastic film has been widely applied to the fields of food, medicine, chemical industry and the like, so the detection of plastics is particularly important.

Chinese patent publication No. CN214894511U discloses a plastic film stretch-proofing performance detection device, the on-line screen storage device comprises a base, top one side of base is fixed with the fixed frame, the top opposite side of base is seted up flutedly, the both ends inner wall rotation of recess is connected with the threaded rod, the one end fixed mounting of threaded rod has the hand rim dish, the outer wall spiro union of threaded rod has the screw slider, the top of screw slider is fixed with the removal frame, the fixed frame all is fixed with the fixing base with the inboard bottom of removing the frame, the equal fixedly connected with trapezoidal arch in top both ends of fixing base, the top of fixing base is equipped with the compact heap, trapezoidal groove has all been seted up at the bottom both ends of compact heap, trapezoidal groove and trapezoidal protruding looks adaptation, the top central authorities of compact heap rotate and are connected with adjusting screw, the equal fixed mounting in top central authorities of compact heap has the slide bar.

However, the inventor of the device considers that certain defects exist, the device adopts a mode of manually adjusting a screw rod to drive a compressing block to descend, so that the compressing block fixes one end of a plastic film, the fixing mode is troublesome and tedious in operation, the fixing speed of the plastic film is reduced, and therefore the detection efficiency is affected.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provides a device for detecting the tensile strength of plastics.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a device for detecting plastics tensile strength, includes the operation panel and installs the slide on the operation panel, fixedly connected with fixing base and sliding connection have movable seat on the operation panel, the inside of fixing base and the inside of movable seat all are equipped with the fixture to plastic film one end centre gripping, fixture includes splint, the top fixedly connected with movable rod and the slide bar of splint, two sets of movable rod and slide bar respectively sliding connection are at the top of fixing base and the top of movable seat, every the pulley is all installed at the top of movable rod, the inside sliding connection of slide has horizontal pole and U type frame, horizontal pole and U type frame are established respectively directly over fixing base and movable seat, oblique recess has all been seted up to the one end of horizontal pole and U type frame, two the pulley offsets tightly with the inner roof of two oblique recesses respectively, the inside of slide is equipped with the adjustment mechanism that control horizontal pole and U type frame kept away from each other or are close to each other and move.

Further, a spring is sleeved on the sliding rod, and a stop block is fixedly connected to the top of the sliding rod.

Further, adjustment mechanism is including installing the driving motor in slide one end, the screw rod is installed to driving motor's output pivot end, the screw rod rotates the inside of connecting at the slide, threaded connection has two sliding blocks on the screw rod, two the inner circle screw thread opposite direction of sliding block, two sliding block respectively with horizontal pole and U type frame fixed connection.

Further, the spout has been seted up at the top of operation panel, the bottom fixedly connected with of movable seat connects the slider, connect slider sliding connection in the inside of spout.

Further, a through groove is formed in the top of the operation table, an electric push rod is mounted in the through groove, and a watercolor pen is mounted at the telescopic end of the electric push rod.

Furthermore, the bottom of splint has seted up trapezoidal recess, the interior bottom wall of fixing base and movable seat all is equipped with trapezoidal arch.

Compared with the prior art, the device for detecting the tensile strength of the plastic has the following beneficial effects:

1. according to the utility model, the two ends of the plastic film are respectively placed in the fixed seat and the movable seat, the transverse rod and the U-shaped frame are controlled to move away from each other by starting the adjusting mechanism, the pulleys at the tops of the movable rods are extruded by the inclined planes of the two inclined grooves, so that the two clamping plates are respectively pushed to descend in the fixed seat and the movable seat to clamp and fix the two ends of the plastic film, and the movable seat is pushed to move away from the fixed seat by continuing to keep away from the U-shaped frame, so that the tensile strength of the plastic film clamped between the fixed seat and the movable seat is detected.

2. According to the utility model, when the two pulleys slide to the inclined groove through the arranged springs and the stop blocks, the two clamping plates are quickly driven to ascend and reset through resilience of the springs, so that the clamping and fixing effects on the plastic film are quickly removed, after the stretched plastic film is kept flat, the electric push rod is started to push the watercolor pen to ascend, the watercolor pen is contacted with the surface of the plastic film, then the plastic film is continuously stretched until the plastic film is broken, the broken position of the plastic film is judged through drawn marks, the length value of the marks is measured, so that the tensile strength performance of the plastic film is conveniently obtained, and the clamping effects on the plastic film are improved through the arrangement of the trapezoidal protrusions and the trapezoidal grooves.

Drawings

FIG. 1 is a perspective view of the present utility model;

FIG. 2 is a cross-sectional view of the console of the present utility model;

FIG. 3 is a perspective view of the structure of the adjusting mechanism of the present utility model;

fig. 4 is an enlarged schematic view of fig. 2A in accordance with the present utility model.

In the figure: 1. an operation table; 11. a chute; 12. a through groove; 13. an electric push rod; 14. a watercolor pencil; 2. a fixing seat; 3. a movable seat; 31. the connecting slide block; 4. a clamping plate; 5. a movable rod; 51. a slide bar; 6. a slideway; 61. a driving motor; 62. a screw; 63. a sliding block; 7. a cross bar; 8. a U-shaped frame; 9. and an inclined groove.

Detailed Description

The principles and features of the present utility model are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the utility model and are not to be construed as limiting the scope of the utility model.

This embodiment provides a device for detecting plastics tensile strength, the device is kept away from the motion each other through starting adjustment mechanism to control horizontal pole 7 and U type frame 8, thereby push two splint 4 respectively in fixing base 2 and the inside decline of movable seat 3 to carry out the centre gripping fixed to the both ends of plastic film through the pulley at the inclined plane extrusion movable rod 5 top of two inclined grooves 9, and keep away from through the continuation of U type frame 8 and make the movable seat 3 keep away from fixing base 2 and remove to carry out tensile strength's detection to the plastic film of centre gripping between fixing base 2 and movable seat 3, the device is fixed through the mode of automatic centre gripping, replace in the past through the mode of manual adjustment screw rod to the plastic film, easy operation has improved detection efficiency.

Referring to fig. 1 to 4, a device for detecting tensile strength of plastic comprises an operation table 1 and a slideway 6 arranged on the operation table 1, wherein a fixed seat 2 and a movable seat 3 are fixedly connected to the operation table 1, a sliding chute 11 is arranged at the top of the operation table 1, a connecting sliding block 31 is fixedly connected to the bottom of the movable seat 3, the connecting sliding block 31 is slidingly connected to the inside of the sliding chute 11, the movable seat 3 stably slides on the operation table 1 through the arrangement of the sliding chute 11 and the connecting sliding block 31, clamping mechanisms for clamping one end of a plastic film are respectively arranged in the fixed seat 2 and the movable seat 3, the two ends of the plastic film are clamped and fixed through the clamping mechanisms, the clamping mechanisms comprise clamping plates 4, the plastic film is clamped and fixed through the falling of the clamping plates 4 and the inner bottom wall of the fixed seat 2 or the movable seat 3,

the logical groove 12 has been seted up at the top of operation panel 1, logical inslot 12's internally mounted has electric putter 13, the watercolor pen 14 is installed to electric putter 13's flexible end, promote watercolor pen 14 through starting electric putter 13 and rise, contact with the plastic film surface through watercolor pen 14, then continue tensile plastic film until the plastic film breaks, judge the cracked position of plastic film through the trace of drawing, measure trace length value, so as to obtain the performance of plastic film tensile strength, trapezoidal recess has been seted up to splint 4's bottom, the interior bottom wall of fixing base 2 and movable seat 3 all is equipped with trapezoidal arch, trapezoidal arch and trapezoidal recess through setting up, the centre gripping effect to the plastic film has been increased.

The top fixedly connected with movable rod 5 and slide bar 51 of splint 4, two sets of movable rod 5 and slide bar 51 respectively sliding connection are at the top of fixing base 2 and the top of movable seat 3, the pulley is all installed at the top of every movable rod 5, promote the decline of splint 4 through the pulley at extrusion movable rod 5 top, the inside sliding connection of slide 6 has horizontal pole 7 and U type frame 8, horizontal pole 7 and U type frame 8 establish directly over fixing base 2 and movable seat 3 respectively, inclined groove 9 has all been seted up to horizontal pole 7 and U type frame 8's one end, two pulleys are tight with the interior roof of two inclined grooves 9 respectively, when control horizontal pole 7 and U type frame 8 keep away from each other the motion, the top of pulley is extruded through the inclined plane of inclined groove 9, thereby promote splint 4 decline to carry out the centre gripping fixed to fixing base 2 or the inside plastic film one end of movable seat 3, the spring has been cup jointed on the slide bar 51, the top fixedly connected with dog of 51, when movable rod 5 atress, rebound through the spring resets and drives 4 fast and rises and releases the centre gripping effect to the splint.

The inside of slide 6 is equipped with the control horizontal pole 7 and the adjustment mechanism that the motion is kept away from each other or is close to each other to U type frame 8, can control horizontal pole 7 and U type frame 8 and keep away from each other or be close to each other through adjustment mechanism, adjustment mechanism is including installing the driving motor 61 at slide 6 one end, screw rod 62 is installed to driving motor 61's output pivot end, screw rod 62 rotates the inside of connecting at slide 6, threaded connection has two sliding blocks 63 on screw rod 62, the inner circle screw thread opposite direction of two sliding blocks 63, two sliding blocks 63 respectively with horizontal pole 7 and U type frame 8 fixed connection, drive screw rod 62 through starting driving motor 61 rotates in slide 6's inside, because two sliding blocks 63 internal thread opposite direction, so two sliding blocks 63 can be close to each other or keep away from each other and move to drive horizontal pole 7 or U type frame 8 and keep away from each other and move close to each other in the operation.

Working principle: the driving motor 61 and the electric push rod 13 are connected with a municipal power supply, two ends of a plastic film to be detected are respectively placed in the fixed seat 2 and the movable seat 3, the driving motor 61 is started to drive the screw 62 to rotate, the transverse rod 7 and the U-shaped frame 8 are driven to move away from each other under the action of the sliding block 63, the inclined surface of the inclined groove 9 at one end of the transverse rod 7 presses the pulley on the fixed seat 2, the clamping plate 4 in the fixed seat 2 is pushed to descend to clamp and fix one end of the plastic film, the inclined surface of the inclined groove 9 at one end of the U-shaped frame 8 presses the pulley on the movable seat 3, the clamping plate 4 in the movable seat 3 is pushed to descend to clamp and fix the other end of the plastic film, the U-shaped frame 8 is pushed to slide in a direction away from the fixed seat 2 through one end of the U-shaped frame 8, the plastic film clamped between the fixed seat 2 and the movable seat 3 is stretched, after the stretched plastic film is kept flat, the electric push rod 13 is started to push the watercolor pen 14 to ascend, the plastic film is contacted with the surface of the plastic film, and then the plastic film is stretched until the plastic film breaks, the position is measured, and the strength of the plastic film is measured, and the strength is convenient to obtain the plastic film is measured.

The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.

Claims

1. Device for detecting the tensile strength of plastics, comprising an operating table (1) and a slide (6) mounted on the operating table (1), characterized in that: fixedly connected with fixing base (2) and sliding connection have movable seat (3) on operation panel (1), the inside of fixing base (2) and the inside of movable seat (3) all are equipped with the fixture to plastic film one end centre gripping, fixture includes splint (4), the top fixedly connected with movable rod (5) and slide bar (51) of splint (4), two sets of movable rod (5) and slide bar (51) respectively sliding connection at the top of fixing base (2) and the top of movable seat (3), every pulley is all installed at the top of movable rod (5), the inside sliding connection of slide (6) has horizontal pole (7) and U type frame (8), horizontal pole (7) and U type frame (8) are established respectively directly over fixing base (2) and movable seat (3), inclined groove (9) are all seted up to the one end of horizontal pole (7) and U type frame (8), two the pulley offsets with the interior roof of two inclined groove (9) respectively, the inside of slide (6) is equipped with control mechanism and U type frame (7) and moves away from each other and keeps away from each other.

2. A device for detecting tensile strength of plastic according to claim 1, wherein: the sliding rod (51) is sleeved with a spring, and the top of the sliding rod (51) is fixedly connected with a stop block.

3. A device for detecting tensile strength of plastic according to claim 1, wherein: the adjusting mechanism comprises a driving motor (61) arranged at one end of the slideway (6), a screw rod (62) is arranged at the output rotating shaft end of the driving motor (61), the screw rod (62) is rotationally connected inside the slideway (6), two sliding blocks (63) are connected to the screw rod (62) in a threaded mode, the directions of the inner ring threads of the sliding blocks (63) are opposite, and the two sliding blocks (63) are fixedly connected with the cross rod (7) and the U-shaped frame (8) respectively.

4. A device for detecting tensile strength of plastic according to claim 1, wherein: the top of the operating platform (1) is provided with a sliding groove (11), the bottom of the movable seat (3) is fixedly connected with a connecting sliding block (31), and the connecting sliding block (31) is in sliding connection with the inside of the sliding groove (11).

5. A device for detecting tensile strength of plastic according to claim 1, wherein: the top of operation panel (1) has seted up logical groove (12), the internally mounted in logical groove (12) has electric putter (13), water color pencil (14) are installed to the flexible end of electric putter (13).

6. A device for detecting tensile strength of plastic according to claim 1, wherein: trapezoidal grooves are formed in the bottoms of the clamping plates (4), and trapezoidal protrusions are arranged on the inner bottom walls of the fixed seat (2) and the movable seat (3).