Device for detecting hot ductility of PE (Poly Ethylene) film
By using a roll bar and clip structure to fix the moving end of the film in the PE film thermal stretching performance testing device, the problem of unstable fixation in the existing device is solved, and more accurate thermal stretching performance testing is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-17
- Publication Date
- 2026-03-27
AI Technical Summary
Existing PE film thermal stretching performance testing devices have poor stability when fixing the film, which can easily lead to local deformation and affect the accuracy of the test.
The two movable ends of the PE film are fixed by roller one and roller two. The movable ends of the film are clamped by a combination of clamping plates and springs. The roller is rotated by a motor-driven screw to perform tensile testing. Combined with infrared lamp heating, uniform force is achieved.
This improves the film's fixation strength, avoids localized deformation, and ensures the accuracy and reliability of the test results.
Smart Images
Figure CN224051839U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to PE film performance detection technical field especially a PE film heat delay performance detection device. BACKGROUND
[0002] PE film is polyethylene film, which is made of polyethylene material and is a kind of harmless chemical material, and is often used for the production of composite film, heat shrinkable film and wrapping film, when it is used for packaging, agricultural covering (such as mulch) or industrial material, if the heat delay performance is insufficient, it may be excessively shrunk, deformed or broken at high temperature, resulting in packaging sealing failure, mulch tearing and other problems, therefore, the PE film needs to be detected for heat delay performance in the production and processing process.
[0003] At present, the heat delay performance detection device in the prior art mainly fixes the movable end of the film through the magnetic attraction between the support plate and the magnet block before detecting the PE film, which belongs to local point fixing, and has poor fixing stability and is easy to fall off, and the film part not fixed is not obviously deformed during the heat delay and pulling of the film, thereby affecting the observation and judgment of the heat delay performance of the whole film.
[0004] Therefore, we propose a PE film heat delay performance detection device to solve the above problems. UTILITY MODEL CONTENTS
[0005] The utility model aims at providing a PE film heat delay performance detection device to solve the problems in the background art.
[0006] To achieve the above object, the utility model provides the following technical scheme.
[0007] A PE film heat delay performance detection device, comprising a rack and an infrared lamp tube, a back plate is installed on the upper side of the rear side of the rack, and a top plate is installed on the back plate, the infrared lamp tube is installed on the lower surface of the top plate, a screw rod and a guide rod are rotatably connected to one side of the back plate and are parallel to each other, a movable block is installed outside the screw rod and the guide rod, the movable block is threadedly connected to the screw rod and is slidably connected to the guide rod, an electric motor is further connected to one end of the screw rod, a winding rod one is installed on the front side of the back plate, a winding rod two is installed on the front side of the movable block and has the same structure as the winding rod one and is used for winding the PE film, a notch is formed in the inside of the winding rod one and the winding rod two, a pair of clamping pieces are symmetrically installed in the notch through a plurality of groups of springs and are used for clamping the movable end of the PE film.
[0008] In further embodiments, a cutting knife is further installed on the rack, the cutting knife is arranged on the side close to the winding rod two, the head end of the cutting knife is rotatably connected to the rack, and a handle is installed at the tail end of the cutting knife.
[0009] In further embodiments, the upper surface of the frame is provided with an embedded slot for the cutting knife to be inserted into, and when the cutting knife is inserted into the embedded slot, the handle of the cutting knife extends out of the front end surface of the frame, and the back height of the cutting knife is lower than the lower edge height of the winding rod two.
[0010] In further embodiments, the head end of the clamping piece is provided with an arc-shaped elbow, and the elbows of the clamping pieces of one set of the winding rod one or the winding rod two are symmetrically bent outward.
[0011] In further embodiments, the outer surface of the winding rod one and the winding rod two are each provided with a plurality of silica gel strips parallel to the axial direction.
[0012] In further embodiments, the tail end of the winding rod one and the winding rod two are each provided with a threaded stud, a gasket is sleeved on the threaded stud, and a nut is threadedly connected to the threaded stud.
[0013] In further embodiments, the back plate is provided with a waist-shaped hole for the threaded stud of the winding rod one to pass through.
[0014] Compared with the prior art, the present application has the following beneficial effects:
[0015] The present application fixes the two movable ends of the PE film by the winding rod one and the winding rod two, and after the movable ends of the PE film are inserted into the clamping pieces of the winding rod one, the winding rod is used as the axis to wind several turns, so that the PE film can be bound on the winding rod, which is more fixed and not easy to fall off during pulling, and when the two winding rods are pulled away from each other, the whole surface of the PE film is stressed more evenly, which is not easy to cause local severe deformation, so that the detection and observation effect is more accurate. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is a front perspective structure schematic diagram of the present application;
[0017] Figure 2 It is a bottom perspective structure schematic diagram of the present application;
[0018] Figure 3 It is a rear perspective structure schematic diagram of the present application;
[0019] Figure 4 It is a winding rod two and movable block installation structure schematic diagram of the present application;
[0020] Figure 5 It is a winding rod two sectional structure schematic diagram of the present application.
[0021] In the figure: 1, rack; 2, backboard; 21, waist-shaped hole; 3, top plate; 4, infrared lamp tube; 5, screw rod; 6, guide rod; 7, motor; 8, movable block; 9, winding rod one; 10, winding rod two; 11, clamping piece; 111, elbow; 12, spring; 13, cutting knife; 131, knife handle; 132, embedding groove; 14, silica gel strip; 15, stud; 16, gasket; 17, nut. DETAILED DESCRIPTION
[0022] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.
[0023] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0024] The technical solutions in the embodiments of the present application will be described clearly and completely in the following with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.
[0025] Please refer to Figures 1-5The utility model provides a kind of PE film hot ductility detection device, including rack 1 and infrared lamp tube 4, backplate 2 is installed on the rear side top of rack 1, and backplate 2 is installed on top plate 3, top plate 3 extends to the top of rack 1, and with the panel of rack 1 parallel, and infrared lamp tube 4 is installed on the lower surface of top plate 3, rack 1 is arranged into a row, for the heating of the PE film to be detected below, one side of backplate 2 is rotatably connected with mutually parallel screw rod 5 and guide rod 6, and movable block 8 is installed outside screw rod 5 and guide rod 6, the movable block 8 is threadedly connected with screw rod 5, and is slidably connected with guide rod 6, one end of screw rod 5 is also connected with motor 7, when screw rod 5 rotates, under the limiting effect of guide rod 6, movable block 8 can move along the length direction of screw rod 5, reel bar one 9 is installed on the front side of backplate 2, reel bar two 10 is installed on the front side of movable block 8, PE film is fixed between two reel bars, reel bar two 10 is same in structure with reel bar one 9, the movable end of PE film can be fixed around reel bar two 10 and reel bar one 9, the inside of reel bar one 9 and reel bar two 10 is provided with notch, so that reel bar is long U type structure, a pair of clamping pieces 11 are installed in the notch, for clamping the movable end of PE film, a plurality of springs 12 are also installed between clamping piece 11 and reel bar, and the inner wall of reel bar is provided with installation groove for installing spring 12, clamping piece 11 can clamp the movable end of PE film under the elastic force of spring 12, and then winding, fixed more firmly, after the two ends of PE film are fixed outside reel bar one 9 and reel bar two 10, start infrared lamp tube 4 to heat, then start motor 7 to drive screw rod 5 to rotate, so that movable block 8 drives reel bar two 10 to move away from reel bar one 9, so as to pull PE film and detect its hot ductility.
[0026] Specifically, the head end of clamping piece 11 is provided with arc elbow 111, and the elbows 111 of a group of clamping pieces 11 in reel bar one 9 or reel bar two 10 are symmetrically bent outward, so as to guide the film, which can be introduced into the clamping piece 11 from the elbow 111.
[0027] In order to further improve the firmness, the outer surfaces of reel bar one 9 and reel bar two 10 are provided with a plurality of silica gel strips 14 parallel to the axial direction, and the film is tied outside the reel bar, which can be attached to the silica gel strip 14, thereby increasing the frictional resistance.
[0028] In order to facilitate the maintenance and replacement of the winding rod, the tail end of the winding rod one 9 and the winding rod two 10 is provided with a threaded stud 15, when the winding rod two 10 is installed with the movable block 8, the threaded stud 15 penetrates through the perforation in the movable block 8, and a gasket 16 is arranged between the tail end of the winding rod two 10 and the movable block 8, the gasket 16 is sleeved on the threaded stud 15, at the same time, the segment of the threaded stud 15 penetrating out of the movable block 8 is also sleeved with the gasket 16, so as to improve the anti-skid effect, and the outermost end of the threaded stud 15 is also screwed with a nut 17, when the nut 17 is tightened, the gasket 16 is tightly attached to the movable block 8, so as to lock the winding rod two 10 and the movable block 8, and the winding rod one 9 can be installed on the back plate 2 in the above-mentioned manner, specifically, the waist-shaped hole 21 is formed on the back plate 2, the threaded stud 15 of the winding rod one 9 penetrates through the waist-shaped hole 21, so that the initial distance between the winding rod one 9 and the winding rod two 10 can be adjusted according to the PE film detection section of different lengths.
[0029] In order to facilitate the shearing of the PE film, the cutting knife 13 is further installed on the rack 1, the cutting knife 13 is arranged on the side close to the winding rod two 10, and the head end of the cutting knife 13 is rotatably connected with the rack 1, so that the cutting knife 13 can rotate up and down relative to the rack 1, the tail end of the cutting knife 13 is provided with a knife handle 131, so as to control the cutting knife 13 to cut the PE film through the knife handle 131, specifically, the upper surface of the rack 1 is provided with the embedding groove 132 for inserting the cutting knife 13, the cutting knife 13 can be inserted into the embedding groove 132 to protect the cutting edge, and when the cutting knife 13 is buckled in the embedding groove 132, the knife handle 131 extends out of the front end surface of the rack 1, and the back height of the cutting knife 13 is lower than the lower edge height of the winding rod two 10, so as not to affect the movement of the winding rod two 10.
[0030] It is apparent for those skilled in the art that the present application is not limited to the details of the above-mentioned exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.
[0031] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can be properly combined to form other embodiments which can be understood by those skilled in the art.
Claims
1. A PE film hot ductility detection device, comprising a rack (1) and an infrared lamp tube (4), characterized in that: The back plate (2) is installed above the rear side of the frame (1), and the top plate (3) is installed on the back plate (2), the infrared lamp tube (4) is installed on the lower surface of the top plate (3), the screw rod (5) and the guide rod (6) are rotatably connected to one side of the back plate (2) and are parallel to each other, the movable block (8) is installed outside the screw rod (5) and the guide rod (6), the movable block (8) is threadedly connected with the screw rod (5) and is slidably connected with the guide rod (6), one end of the screw rod (5) is further connected with the motor (7), the winding rod one (9) is installed on the front side of the back plate (2), the winding rod two (10) is installed on the front side of the movable block (8) and has the same structure as the winding rod one (9) and is used for winding the PE film, the notch is formed in the inside of the winding rod one (9) and the winding rod two (10), a pair of clamping plates (11) are symmetrically installed in the notch through a plurality of spring groups (12) and are used for clamping the movable end of the PE film.
2. The PE film hot ductility performance detection device according to claim 1, characterized in that: The cutting knife (13) is further installed on the frame (1) and is arranged on one side close to the winding rod two (10), the head end of the cutting knife (13) is rotatably connected with the frame (1), and the tail end of the cutting knife (13) is provided with the knife handle (131).
3. The PE film hot ductility performance detection device according to claim 1, characterized in that: The embedding groove (132) for the cutting knife (13) is formed in the upper surface of the frame (1), when the cutting knife (13) is inserted into the embedding groove (132), the knife handle (131) extends out of the front end surface of the frame (1), and the height of the back of the cutting knife (13) is lower than the lower edge height of the winding rod two (10).
4. The PE film hot ductility performance detection device according to claim 1, characterized in that: The head end of the clamping plate (11) is provided with the arc-shaped elbow (111), and the elbows (111) of the clamping plates (11) in one group of the winding rod one (9) or the winding rod two (10) are symmetrically bent outward.
5. The PE film hot ductility detection device according to claim 1, characterized in that: The outer surfaces of the winding rod one (9) and the winding rod two (10) are provided with a plurality of silica gel strips (14) parallel to the axial direction.
6. The PE film hot ductility performance detection device according to claim 1, characterized in that: The tail ends of the winding rod one (9) and the winding rod two (10) are provided with the threaded studs (15), the gaskets (16) are sleeved on the threaded studs (15), and the nuts (17) are threadedly connected with the threaded studs (15).
7. The PE film hot ductility detection device according to claim 6, characterized in that: The waist-shaped holes (21) for the threaded studs (15) of the winding rod one (9) are formed in the back plate (2).