Polyethylene resin film tensile property testing device

Abstract

The utility model discloses a polyethylene resin film tensile property testing device which comprises a main body unit, the main body unit comprises a box body, the lower side of the box body is fixedly connected with two groups of supporting plates, one side of the box body is provided with a controller, the other side of the box body is fixedly connected with a clamping block, the upper side of the box body is provided with a box cover, and the box cover is provided with a clamping groove; a first sliding groove and a second sliding groove are formed in the bottom of the inner wall of the box body. According to the utility model, not only is the polyethylene resin film fixed more firmly during testing, but also the bottom surface of the polyethylene resin film is attached to the surface of the pressing seat, so that the stress of the polyethylene resin film is more uniform, and the detection precision is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of polyethylene resin film performance testing, in particular to a polyethylene resin film tensile performance testing device. Background Art

[0002] Polyethylene resin film is a common plastic film material, widely used in food packaging, medical and health care, agriculture, construction and other fields. During the production process of polyethylene resin film, it is usually necessary to test the finished product to ensure the quality and performance of the product.

[0003] In the prior art, conventional tensile testing is usually performed by clamping a corner of the polyethylene resin film to fix it. However, this method will result in uneven force, affecting the detection accuracy of the polyethylene resin film. Moreover, most tests are performed at room temperature, while polyethylene resin films are mostly used in open-air environments. The existing detection method cannot truly reflect the detection data of the polyethylene resin film under various external temperatures. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In view of the problems existing in the existing polyethylene resin film tensile performance testing device, the present utility model is proposed.

[0006] Therefore, the purpose of the utility model is to provide a polyethylene resin film tensile performance testing device, which is designed to solve the problem that "in the prior art, traditional tensile testing is usually performed by clamping a corner of the polyethylene resin film, but this method will cause uneven force and affect the detection accuracy of the polyethylene resin film, and most of the tests are carried out under good room temperature conditions, while polyethylene resin films are mostly used in open-air environments. The existing detection method cannot truly reflect the detection data of the polyethylene resin film under various external temperatures."

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0008] A polyethylene resin film tensile performance testing device, comprising:

[0009] The main unit comprises a box body, two sets of support plates are fixedly connected to the lower side of the box body, a controller is installed on one side of the box body, a card block is fixedly connected to the other side of the box body, a box cover is arranged on the upper side of the box body, and a first slide groove and a second slide groove are arranged at the bottom of the inner wall of the box body;

[0010] The detection unit includes an electric heater installed on one side of the inner wall of the box cover, a storage groove is provided on the bottom inner wall of the box body, and a refrigerator is arranged in the storage groove, two groups of sliding seats are provided inside the box body, and the sliding seats are rotatably connected to the inside of the rotating rods, the surfaces of the two rotating rods are fixedly connected to the pressing seats, and the upper sides of the pressing seats are provided with pressing grooves, the insides of the two groups of pressing grooves are provided with pressing plates, and the sides of the pressing plates opposite to each other are rotatably connected to the pressing seats, telescopic holes are provided on one side of the inner walls of the two groups of pressing grooves, and the telescopic holes are slidably connected with clamping rods, one end of the two groups of clamping rods are fixedly connected with springs, and the springs are fixedly connected to the inner walls of the telescopic holes, a driving groove is provided on the adjacent sides of the two groups of sliding seats, and a driving assembly is arranged inside the driving groove, one group of sliding seats is fixedly connected to the inner wall of the box body, and a moving assembly is provided at the bottom of the other sliding seat.

[0011] As a preferred solution of the polyethylene resin film tensile properties testing device described in the utility model, the two groups of driving components both include a worm wheel fixedly connected to the rotating rod, and a worm is meshed on one side of the worm wheel, the two groups of worms are rotatably connected to the inner wall of the driving groove, the upper ends of the two groups of worms penetrate through the upper area of ​​the sliding seat, and the upper ends of the two groups of worms are fixedly connected to a handle.

[0012] As a preferred solution of the polyethylene resin film tensile properties testing device described in the utility model, wherein: the moving component includes a motor fixedly connected to the box body, and the output end of the motor is fixedly connected to a threaded rod, the threaded rod is rotatably connected to the inner wall of the first slide groove, the surface of the threaded rod is threadedly connected to a threaded barrel, and the upper end of the threaded barrel is fixedly connected to the lower side of another sliding seat), the interior of the second slide groove is fixedly connected to a fixed rod, and the surface of the fixed rod is slidably connected to a slide barrel, and the upper end of the slide barrel is fixedly connected to the lower side of another sliding seat.

[0013] As a preferred solution of the polyethylene resin film tensile property testing device described in the utility model, the other end of the clamping rod is designed as a curved surface, and the lower side of the end of the pressing plate close to the clamping rod is designed as an arc.

[0014] As a preferred solution of the polyethylene resin film tensile property testing device described in the utility model, wherein: the lower sides of the two groups of pressing plates are fixedly connected with rubber sheets, and the rubber sheets are all of uniform concave-convex design.

[0015] As a preferred solution of the polyethylene resin film tensile property testing device described in the utility model, wherein: the box cover is made of a transparent plate, and the side of the box cover facing away from the controller is rotatably connected to the card block.

[0016] Beneficial effects of the utility model:

[0017] 1. Place the two ends of the polyethylene resin film under the two pressing plates respectively, and then press the pressing plate to make the pressing plate push the clamping rod into the telescopic hole, and then pop out under the elastic force of the spring, so that the clamping rod clamps the pressing plate and presses the polyethylene resin film on the surface of the pressing seat, and then manually turn the handle to rotate the worm, and the worm gear meshing with the worm drives the fixedly connected rotating rod to rotate, and the pressing seat fixedly connected to the rotating rod drives one end of the polyethylene resin film to rotate backward, and makes the bottom surface of the polyethylene resin film fit with the surface of the pressing seat, and then start the motor to rotate the threaded rod, and the threaded cylinder threadedly connected to the threaded rod drives the other sliding seat to move, so that the polyethylene resin film begins to stretch. Through this arrangement, not only the polyethylene resin film is fixed more firmly during the test, but also the bottom surface of the polyethylene resin film fits with the surface of the pressing seat, which can make the polyethylene resin film more evenly stressed, effectively improving the detection accuracy.

[0018] 2. Pull the box cover downward to flip it downward with the block as the center, cover it through the upper surface of the box body, and then turn on the refrigerator or electric heater by operating the controller, so that the temperature of the internal area between the box body and the box cover can be flexibly adjusted, thereby simulating the detection data of the polyethylene resin film under different external temperatures. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0020] Figure 1 This is a three-dimensional structural schematic diagram of a polyethylene resin film tensile performance testing device proposed by the utility model;

[0021] Figure 2 for Figure 1 A top view schematic diagram of a three-dimensional structure;

[0022] Figure 3 is a schematic cross-sectional view of the three-dimensional structure of the sliding seat;

[0023] Figure 4 is a schematic diagram of the three-dimensional structure of the mobile component;

[0024] Figure 5 It is a bottom view schematic diagram of the three-dimensional structure of the pressing plate.

[0025] In the figure: 100, main unit; 101, box body; 102, controller; 103, support plate; 104, box cover; 105, slide slot one; 106, slide slot two; 200, detection unit; 201, refrigerator; 202, electric heater; 203, sliding seat; 204, rotating rod; 205, pressing seat; 206, pressing plate; 207, driving groove; 208, driving assembly; 208a, worm gear; 208b, worm; 209, moving assembly; 209a, motor; 209b, threaded rod; 209c, threaded cylinder; 209d, fixing rod; 211, clamping rod; 212, spring. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0029] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0030] Reference Figure 1-5 The utility model provides a polyethylene resin film tensile performance testing device, comprising:

[0031] The main unit 100 includes a box body 101, two sets of support plates 103 are fixedly connected to the lower side of the box body 101, a controller 102 is installed on one side of the box body 101, a card block is fixedly connected to the other side of the box body 101, a box cover 104 is arranged on the upper side of the box body 101, and a slide groove 105 and a slide groove 2 106 are opened at the bottom of the inner wall of the box body 101;

[0032] The detection unit 200 includes an electric heater 202 installed on one side of the inner wall of the box cover 104, the electric heater 202 is electrically connected to the controller 102, a storage groove is provided on the bottom inner wall of the box body 101, and a refrigerator 201 is provided in the storage groove, and the refrigerator 201 is electrically connected to the controller 102, two sets of sliding seats 203 are provided inside the box body 101, and the inside of the sliding seats 203 are both rotatably connected to the rotating rod 204 through the bearing, and the surfaces of the two rotating rods 204 are fixedly connected to the pressing seats 205, and the upper side of the pressing seats 205 is provided with a pressing groove, and the inside of the two sets of pressing grooves are provided There is a pressing plate 206, and the side of the pressing plate 206 facing away from each other is rotatably connected to the pressing seat 205. Telescopic holes are provided on the inner walls of one side of the two groups of pressing grooves, and a clamping rod 211 is slidably connected in the telescopic holes. One end of the two groups of clamping rods 211 is fixedly connected to a spring 212, and the spring 212 is fixedly connected to the inner wall of the telescopic hole. A driving groove 207 is provided on the side close to the two groups of sliding seats 203, and a driving component 208 is arranged inside the driving groove 207. One group of sliding seats 203 is fixedly connected to the inner wall of the box body 101, and a moving component 209 is arranged at the bottom of the other sliding seat 203.

[0033] Among them, both groups of driving components 208 include a worm wheel 208a fixedly connected to the rotating rod 204, and a worm 208b is meshed on one side of the worm wheel 208a. Both groups of worm gears 208b are rotatably connected to the inner wall of the driving groove 207. The upper ends of both groups of worm gears 208b penetrate into the upper area of ​​the sliding seat 203. The upper ends of both groups of worm gears 208b are fixedly connected with a handle. The handle is manually turned to rotate the worm gear 208b, and the worm wheel 208a meshed with the worm gear 208b drives the rotating rod 204 to rotate, thereby causing the pressing seat 205 and the pressing plate 206 to drive one end of the pressed and fixed film to rotate, thereby increasing the firmness and making the entire surface of the film evenly stressed.

[0034] Furthermore, the moving component 209 includes a motor 209a fixedly connected to the box body 101, and the output end shaft of the motor 209a is fixedly connected to a threaded rod 209b, the motor 209a is electrically connected to the controller 102, the threaded rod 209b is rotatably connected to the inner wall of the slide groove 105, the surface of the threaded rod 209b is rotatably connected to a threaded cylinder 209c, and the upper end of the threaded cylinder 209c is fixedly connected to the lower side of another sliding seat 203, the interior of the slide groove 206 is fixedly connected to a fixed rod 209d, and the surface of the fixed rod 209d is slidably connected to a slide cylinder, and the upper end of the slide cylinder is fixedly connected to the lower side of another sliding seat 203, the motor 209a drives the threaded rod 209b to rotate, so that the threaded cylinder 209c drives the other sliding seat 203 to move flexibly, so as to perform a tensile test on the polyethylene resin film.

[0035] Furthermore, the other end of the clamping rod 211 is designed to be curved, and the lower side of the pressing plate 206 near the clamping rod 211 is designed to be arc-shaped. The pressing plate 206 can be clamped under the clamping rod 211 by pressing the pressing plate 206, and the pressing plate 206 can also be flipped upward by pushing the clamping rod 211 into the telescopic hole.

[0036] Furthermore, the lower sides of the two sets of pressing plates 206 are fixedly connected with rubber sheets, and the rubber sheets are designed with uniform concave and convex shapes to increase friction and prevent the polyethylene resin film from slipping out.

[0037] Furthermore, the box cover 104 is made of a transparent plate, and the side of the box cover 104 facing away from the controller 102 is rotatably connected to the card block, so that the staff can observe and detect the stretching effect in real time, and at the same time can open the box body 101 by flipping the box cover 104 upwards.

[0038] During use, the two ends of the polyethylene resin film are placed under the pressing plates 206 of the two, and then the pressing plate 206 is pressed, so that the pressing plate 206 pushes the clamping rod 211 into the telescopic hole, and then pops out under the elastic force of the spring 212, so that the clamping rod 211 clamps the pressing plate 206 and presses the polyethylene resin film on the surface of the pressing seat 205, and then the handle is manually turned to rotate the worm 208b, and the worm wheel 208a meshing with the worm 208b drives the fixedly connected rotating rod 204 to rotate, and the pressing seat 205 fixedly connected to the rotating rod 204 drives one end of the polyethylene resin film to rotate in the opposite direction, and the polyethylene resin film is pressed against the surface of the pressing seat 205. The bottom surface of the film is fitted with the surface of the pressing seat 205, and then the motor 209a is started to rotate the threaded rod 209b, and the threaded cylinder 209c threadedly connected to the threaded rod 209b drives the other sliding seat 203 to move, so that the polyethylene resin film begins to stretch, and at the same time, the box cover 104 can be pulled downward to make the box cover 104 flip downward with the block as the center, and cover the upper surface of the box body 101, and then the refrigerator 201 or the electric heater 202 can be turned on by operating the controller 102, so that the temperature of the internal area between the box body 101 and the box cover 104 can be flexibly adjusted, thereby simulating the detection data of the polyethylene resin film under different external temperatures.

[0039] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A polyethylene resin film tensile properties testing device, characterized in that: include: The main unit (100) comprises a box (101), the lower side of the box (101) is fixedly connected with two groups of support plates (103), one side of the box (101) is installed with a controller (102), the other side of the box (101) is fixedly connected with a card block, the upper side of the box (101) is provided with a box cover (104), and the bottom of the inner wall of the box (101) is provided with a first slide groove (105) and a second slide groove (106); The detection unit (200) comprises an electric heater (202) installed on one side of the inner wall of the box cover (104); a storage groove is provided on the bottom inner wall of the box body (101), and a refrigerator (201) is arranged in the storage groove; two groups of sliding seats (203) are arranged inside the box body (101), and the insides of the sliding seats (203) are both rotatably connected to a rotating rod (204); the surfaces of the two rotating rods (204) are both fixedly connected to a pressing seat (205), and the upper side of the pressing seat (205) is provided with a pressing groove, and the insides of the two groups of pressing grooves are both provided with a pressing plate (206), and the pressing plates (206) are opposite to each other. The two groups of sliding seats (203) are both rotatably connected to the pressing seat (205), one side inner wall of the two groups of pressing grooves is provided with a telescopic hole, and a clamping rod (211) is slidably connected in the telescopic hole, one end of the two groups of clamping rods (211) is fixedly connected with a spring (212), and the spring (212) is fixedly connected to the inner wall of the telescopic hole, the two groups of sliding seats (203) are both provided with a driving groove (207) on the side close to each other, and a driving component (208) is arranged inside the driving groove (207), one group of sliding seats (203) is fixedly connected to the inner wall of the box body (101), and the bottom of the other sliding seat (203) is provided with a moving component (209).

2. A polyethylene resin film tensile properties testing device according to claim 1, characterized in that: The two groups of driving components (208) both include a worm wheel (208a) fixedly connected to the rotating rod (204), and a worm (208b) is meshed on one side of the worm wheel (208a), and the two groups of worms (208b) are rotatably connected to the inner wall of the driving groove (207), and the upper ends of the two groups of worms (208b) both penetrate the upper side area of ​​the sliding seat (203), and the upper ends of the two groups of worms (208b) are fixedly connected to a handle.

3. A polyethylene resin film tensile properties testing device according to claim 2, characterized in that: The moving assembly (209) comprises a motor (209a) fixedly connected to the box body (101), and the output end of the motor (209a) is fixedly connected to a threaded rod (209b), the threaded rod (209b) is rotatably connected to the inner wall of the first slide groove (105), the surface of the threaded rod (209b) is threadedly connected to a threaded cylinder (209c), and the upper end of the threaded cylinder (209c) is fixedly connected to the lower side of another sliding seat (203), the interior of the second slide groove (106) is fixedly connected to a fixed rod (209d), and the surface of the fixed rod (209d) is slidably connected to a sliding cylinder, and the upper end of the sliding cylinder is fixedly connected to the lower side of another sliding seat (203).

4. A polyethylene resin film tensile properties testing device according to claim 3, characterized in that: The other end of the clamping rod (211) is designed to be a curved surface, and the lower side of one end of the pressing plate (206) close to the clamping rod (211) is designed to be arc-shaped.

5. A polyethylene resin film tensile properties testing device according to claim 4, characterized in that: The lower sides of the two sets of pressing plates (206) are both fixedly connected with rubber sheets, and the rubber sheets are both of uniform concave-convex design.

6. A polyethylene resin film tensile properties testing device according to claim 1, characterized in that: The box cover (104) is made of a transparent plate, and the side of the box cover (104) facing away from the controller (102) is rotatably connected to the clamping block.

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