A testing apparatus for testing the tear properties of food packaging

Abstract

The utility model belongs to the field of detection equipment, concretely relates to a kind of detection equipment for testing food packaging tear performance, including detector, the inside of the detector is provided with driver, the upper end right part of the detector is fixedly installed with force gage, the output of the driver and the output outside of force gage are all fixedly connected with clamping frame, clamping mechanism is provided on the clamping frame, the inside of the clamping frame is contacted with packaging film, the upper end front of the detector is fixedly connected with fixed frame, the upper end back of the detector is fixedly connected with cutting groove plate, the inside of the fixed frame is slidably connected with pressing frame.The utility model is equipped with fixed frame, cutting groove plate and cutting groove frame etc. structure on detector, when testing packaging film, cutting groove frame can be moved by pressing frame, cutting groove frame can be opened to packaging film by the recess of cutting groove plate, so that the size and depth of film slotting can be effectively guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, specifically a testing device for testing the tear resistance of food packaging. Background Technology

[0002] The tear resistance of food packaging measures a packaging material's ability to resist tear propagation under external force, directly affecting the packaging's durability, sealing performance, and product protection. When designing and manufacturing food packaging films, testing equipment is required. However, current technology necessitates making an incision in the center of the film using scissors. This method cannot guarantee consistent in size and depth, leading to inconsistent test results. Furthermore, the smooth surface of the packaging film makes clamping difficult. Therefore, improvements to existing technology are needed. Utility Model Content

[0003] The purpose of this invention is to provide a testing device for testing the tear resistance of food packaging, which solves the problems of inconvenient control of the opening size and inconvenience of clamping the packaging film during testing.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a testing device for testing the tear resistance of food packaging, comprising a detector, an internal driver, a force measuring device fixedly mounted on the upper right side of the detector, a clamping frame fixedly connected to the outer side of both the output end of the driver and the output end of the force measuring device, a clamping mechanism provided on the clamping frame, a packaging film in contact with the inside of the clamping frame, a fixing frame fixedly connected to the upper front of the detector, a grooving plate fixedly connected to the upper back of the detector, a pressing frame slidably connected inside the fixing frame, a grooving frame fixedly connected to one end of the pressing frame, and a spring provided on the outer side of the pressing frame.

[0005] Preferably, one end of the spring is fixedly connected to the pressing frame, and the other end of the spring is fixedly connected to the fixing frame. The spring can automatically reset the pressing frame through its elastic force.

[0006] Preferably, the grooving frame is in contact with the fixing frame, and the shape of the cutting block of the grooving frame is consistent with the groove shape of the grooving plate. The grooving frame can squeeze the packaging film onto the surface of the grooving plate to cut the packaging film.

[0007] Preferably, a reinforcing plate is fixedly connected to the lower outer side of the fixing frame, and the reinforcing plate is fixedly connected to the detector, so that the reinforcing plate can support the fixing frame.

[0008] Preferably, the clamping mechanism includes a center bar, the center bar is fixedly connected to the outer side of the clamping frame, two rubber strips symmetrically distributed on the left and right sides of the center bar are fixedly connected to the outer side of the clamping frame, an extrusion frame is slidably connected to the outer side of the clamping frame, a drive plate is fixedly connected to the outer side of the extrusion frame, an internally threaded tube is fixedly connected to the inside of the drive plate, and a screw is installed on the outer side of the clamping frame through a bearing, so that the drive plate can drive the extrusion frame to move.

[0009] Preferably, a handwheel is fixedly installed on the front of the screw, the screw is threadedly connected to the internally threaded tube, the drive plate is slidably connected to the clamping frame, and the handwheel can drive the screw to rotate.

[0010] Preferably, the center strip is in contact with the packaging film, the rubber strip is in contact with the packaging film, and the extrusion frame is in contact with the packaging film, wherein the extrusion frame can extrude the packaging film.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This utility model adds a fixing frame, a grooving plate, and a grooving frame to the detector. When testing the packaging film, the grooving frame can be moved by pressing the frame. The grooving frame can open the packaging film through the groove of the grooving plate, thereby effectively ensuring that the size and depth of the film grooving are consistent.

[0013] 2. This utility model adds a center strip, an extrusion frame, and a rubber strip to the clamping frame. During use, the extrusion frame can press the packaging film to the outside of the center strip and the rubber strip. Multiple bends can then be used to compress and limit the packaging film, making it easier to clamp and more stable to hold the packaging film. Attached Figure Description

[0014] Figure 1 The overall structure of this utility model is three-dimensional. Figure 1 ;

[0015] Figure 2 The overall structure of this utility model is three-dimensional. Figure 2 ;

[0016] Figure 3 For the present utility model Figure 2 Enlarged view of the A-section structure;

[0017] Figure 4 For the present utility model Figure 2 Enlarged view of the structure of section B;

[0018] Figure 5 For the present utility model Figure 3 A three-dimensional enlarged view of the grooving frame.

[0019] In the diagram: 1. Detector; 2. Driver; 3. Force gauge; 4. Clamping frame; 5. Clamping mechanism; 6. Packaging film; 7. Fixing frame; 8. Grooving plate; 9. Pressing frame; 10. Grooving frame; 11. Spring; 12. Reinforcing plate; 51. Center strip; 52. Rubber strip; 53. Extrusion frame; 54. Drive plate; 55. Screw; 56. Internally threaded tube; 57. Handwheel. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-5 A testing device for testing the tear resistance of food packaging includes a detector 1, an actuator 2 inside the detector 1, a force gauge 3 fixedly mounted on the upper right side of the detector 1, a clamping frame 4 fixedly connected to the outer side of the output end of the actuator 2 and the output end of the force gauge 3, a clamping mechanism 5 provided on the clamping frame 4, a packaging film 6 in contact with the inside of the clamping frame 4, a fixing frame 7 fixedly connected to the upper front of the detector 1, a grooving plate 8 fixedly connected to the upper back of the detector 1, a pressing frame 9 slidably connected inside the fixing frame 7, a grooving frame 10 fixedly connected to one end of the pressing frame 9, and a spring 11 provided on the outer side of the pressing frame 9.

[0022] Please see Figure 1-5 One end of the spring 11 is fixedly connected to the pressing frame 9, and the other end of the spring 11 is fixedly connected to the fixing frame 7. The spring 11 can automatically reset the pressing frame 9 through its elastic force. The grooving frame 10 is in contact with the fixing frame 7. The cutting shape of the grooving frame 10 is consistent with the groove shape of the grooving plate 8. The grooving frame 10 can squeeze the packaging film 6 onto the surface of the grooving plate 8 to cut the packaging film 6. A reinforcing plate 12 is fixedly connected to the lower outer side of the fixing frame 7. The reinforcing plate 12 is fixedly connected to the detector 1. The reinforcing plate 12 can support the fixing frame 7.

[0023] Please see Figure 1-5The clamping mechanism 5 includes a center bar 51. The center bar 51 is fixedly connected to the outside of the clamping frame 4. Two rubber strips 52 are symmetrically distributed on the left and right sides of the center bar 51 and fixedly connected to the outside of the clamping frame 4. An extrusion frame 53 is slidably connected to the outside of the clamping frame 4. A drive plate 54 is fixedly connected to the outside of the extrusion frame 53. An internally threaded tube 56 is fixedly connected inside the drive plate 54. A screw 55 is mounted on the outside of the clamping frame 4 through a bearing. The drive plate 54 can drive the extrusion frame 53 to move. A handwheel 57 is fixedly mounted on the front of the screw 55. The screw 55 is threadedly connected to the internally threaded tube 56. The drive plate 54 is slidably connected to the clamping frame 4. The handwheel 57 can drive the screw 55 to rotate. The center bar 51 contacts the packaging film 6, the rubber strips 52 contact the packaging film 6, and the extrusion frame 53 contacts the packaging film 6. The extrusion frame 53 can extrude the packaging film 6.

[0024] The specific implementation process of this utility model is as follows: In use, the packaging film 6 is placed between the extrusion frame 53 and the center strip 51, and then the handwheel 57 is turned. The handwheel 57 drives the screw 55 to rotate. During the rotation, the screw 55 can drive the drive plate 54 to move through the threaded engagement with the internal threaded tube 56. The drive plate 54 drives the extrusion frame 53 to extrude the packaging film 6, thus completing the clamping of the packaging film 6. Then, the pressing frame 9 is pushed, and the pressing frame 9 drives the grooving frame 10 to move and compress the spring 11. The grooving frame 10 can press the packaging film 6 on the outside of the grooving plate 8, thus opening the packaging film 6. After opening, the pressing frame 9 is released, and the spring 11 returns to its original position. The spring 11 can drive the pressing frame 9 and the grooving frame 10 to return to their original positions through the elastic force. Then, the clamping frame 4 above it is moved by the driver 2 to perform a tear test on the packaging film 6. At the same time, the force tester 3 can be used to test the force on the packaging film 6.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A testing device for testing the tear resistance of food packaging, comprising a detector (1), characterized in that: The detector (1) is equipped with a driver (2) inside. A force measuring device (3) is fixedly installed on the upper right side of the detector (1). A clamping frame (4) is fixedly connected to the outer side of the output end of the driver (2) and the output end of the force measuring device (3). A clamping mechanism (5) is provided on the clamping frame (4). A packaging film (6) is in contact with the inside of the clamping frame (4). A fixing frame (7) is fixedly connected to the front of the upper end of the detector (1). A grooving plate (8) is fixedly connected to the back of the upper end of the detector (1). A pressing frame (9) is slidably connected inside the fixing frame (7). A grooving frame (10) is fixedly connected to one end of the pressing frame (9). A spring (11) is provided on the outer side of the pressing frame (9).

2. The testing equipment for testing the tear resistance of food packaging according to claim 1, characterized in that: One end of the spring (11) is fixedly connected to the pressing frame (9), and the other end of the spring (11) is fixedly connected to the fixing frame (7).

3. The testing device for testing the tear resistance of food packaging according to claim 1, characterized in that: The grooving frame (10) is in contact with the fixing frame (7), and the shape of the cutting block of the grooving frame (10) is consistent with the groove shape of the grooving plate (8).

4. The testing device for testing the tear resistance of food packaging according to claim 1, characterized in that: A reinforcing plate (12) is fixedly connected to the lower outer side of the fixing frame (7), and the reinforcing plate (12) is fixedly connected to the detector (1).

5. The testing device for testing the tear resistance of food packaging according to claim 1, characterized in that: The clamping mechanism (5) includes a center bar (51), the center bar (51) is fixedly connected to the outside of the clamping frame (4), two rubber strips (52) symmetrically distributed on the left and right sides of the center bar (51) are fixedly connected to the outside of the clamping frame (4), an extrusion frame (53) is slidably connected to the outside of the clamping frame (4), a drive plate (54) is fixedly connected to the outside of the extrusion frame (53), an internally threaded tube (56) is fixedly connected inside the drive plate (54), and a screw (55) is installed on the outside of the clamping frame (4) through a bearing.

6. The testing device for testing the tear resistance of food packaging according to claim 5, characterized in that: A handwheel (57) is fixedly installed on the front of the screw (55), the screw (55) is connected to the internal threaded tube (56) by a thread, and the drive plate (54) is slidably connected to the clamping frame (4).

7. The testing device for testing the tear resistance of food packaging according to claim 5, characterized in that: The center strip (51) is in contact with the packaging film (6), the rubber strip (52) is in contact with the packaging film (6), and the extrusion frame (53) is in contact with the packaging film (6).

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