Device for detecting thermal shrinkage performance of thermal shrinkage packaging film

Abstract

The utility model relates to the technical field of packaging film thermal shrinkage performance detection, and discloses a thermal shrinkage packaging film thermal shrinkage performance detection device which comprises a bottom box, a placing plate is arranged on one side of the inner wall of the bottom box, a device plate is arranged on one side of the inner wall of the bottom box, and a fixing screw rod is arranged on one side of the outer surface of the device plate. A cover plate is arranged on one side of the outer surface of the bottom box, a connecting box is arranged on one side of the outer surface of the cover plate, a device pipe is arranged in the connecting box, a connecting rod is arranged in the device pipe, and a heating plate is arranged at one end of the connecting rod. When the pull rod is pulled, the rotating rod drives the groove plate to move, one end of the shaft rod moves up and down, the other end of the shaft rod drives the inserting rod to move left and right, when the inserting rod is disconnected with the connecting rod, the heating plate can be taken down, when the pull rod is loosened, the spring pushes the groove plate to move, the inserting rod moves reversely, and when the inserting rod is connected with the connecting rod in an inserted mode, the heating plate is connected with equipment. And the effect of replacing the heating plate is achieved.

Description

Technical Field

[0001] This utility model relates to the field of heat shrink performance testing technology for packaging films, specifically a heat shrink performance testing device for heat shrink packaging films. Background Technology

[0002] Food packaging is divided into two types: inner packaging and outer packaging. Inner packaging refers to the packaging that comes into direct contact with food. It requires packaging materials to have good sealing properties, to isolate oxygen, moisture and microorganisms, to extend the shelf life of food, and to have good abrasion resistance and puncture resistance to prevent food from being damaged during drops or collisions.

[0003] A search revealed a patent (CN212111215U) for a device to test the heat shrinkage performance of PET film samples. The device includes an outer frame with an insulation layer on its inner wall. A heater is fixedly connected to the working end of an electric telescopic rod. A movable support is slidably connected to the inner wall of the outer frame on the side furthest from the fixed support. A lead screw is threadedly connected to the movable support. A support bar is slidably connected to the top and bottom edges of the fixed support. A ball bearing is located at the bottom of the support bar. A threaded rod is rotatably connected to one side of the support bar. Clamping devices are fixedly connected to both sides of the support bar and the movable support. A pointer is fixedly connected to the top of the support bar. A scale plate is fixedly connected to one side of the inner wall of the outer frame near the pointer. This invention relates to the field of film testing technology. This device for testing the heat shrinkage properties of PET film samples achieves rapid testing, temperature stability, accurate tensile testing, and precise detection, thus improving testing efficiency and performance. However, the heating plate of this structure will be damaged after prolonged use and needs to be replaced periodically. But the heating plate inside the structure is not easy to replace, which greatly limits its use. Therefore, a new structure is proposed to solve this technical problem. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a heat-shrinkable packaging film heat-shrinkable performance testing device, which has the advantages of easy replacement of the heating plate, thus solving the problem mentioned in the background art that traditional devices are not convenient for replacing the heating plate.

[0006] (II) Technical Solution

[0007] To achieve the purpose of facilitating the replacement of the heating plate mentioned in the background art, this utility model provides the following technical solution: a heat-shrinkable packaging film heat-shrinkable performance testing device, including a base box, a placement plate provided on one side of the inner wall of the base box, a device plate provided on one side of the inner wall of the base box, a fixing screw provided on one side of the outer surface of the device plate, a cover plate provided on one side of the outer surface of the base box, a connecting box provided on one side of the outer surface of the cover plate, a device tube provided inside the connecting box, a connecting rod provided inside the device tube, a heating plate provided at one end of the connecting rod, an auxiliary tube provided inside the connecting box, an insertion rod provided inside the auxiliary tube, a shaft provided on one side of the outer surface of the insertion rod, a rotating rod provided at one end of the shaft, a grooved plate provided at one end of the rotating rod, a pull rod provided on one side of the outer surface of the grooved plate, and a spring provided on one side of the outer surface of the grooved plate.

[0008] Preferably, the number of device tubes is two, and the two device tubes are evenly arranged in the connecting box.

[0009] Preferably, one end of the device tube contacts one side of the inner wall of the connecting box, and passes through one side of the inner wall of the connecting box to one side of the outer surface of the connecting box, and is fixedly connected to the connecting box.

[0010] Preferably, one side of the outer surface of the connecting box contacts one side of the outer surface of the cover plate, and extends through one side of the outer surface of the cover plate to the other side of the outer surface of the cover plate, and is fixedly connected to the cover plate.

[0011] Preferably, there are multiple shafts, and the multiple shafts are arranged in pairs on one side of the outer surface of the device tube on both the left and right sides.

[0012] Preferably, one end of the auxiliary tube is fixedly connected to one side of the inner wall of the connecting box, and the other end of the auxiliary tube contacts one side of the outer surface of the device tube, penetrates one side of the outer surface of the device tube, enters the device tube, and is fixedly connected to the device tube.

[0013] The inner wall of the auxiliary tube is provided with sliding grooves on the upper and lower sides, and one side of the outer surface of the sliding groove contacts one side of the inner wall of the auxiliary tube and penetrates one side of the inner wall of the auxiliary tube to one side of the outer surface of the auxiliary tube. The insertion rod is set inside the auxiliary tube, and a sliding rod is provided on one side of the outer surface of the insertion rod. One end of the sliding rod is fixedly connected to one side of the outer surface of the insertion rod, and the other end of the sliding rod is slidably connected to the sliding groove, which makes the insertion rod more stable when moving left and right.

[0014] Furthermore, there are multiple shafts, and each pair of shafts forms a group. Within each group, one end of the right shaft is connected to one side of the outer surface of the insertion rod via a bearing, and one end of the left shaft is connected to one side of the outer surface of the auxiliary tube via a bearing. The left and right shafts are connected to each other via a rotating shaft, and the rotating shaft is connected to a rotating rod. The other end of the rotating rod is slidably connected to the inner wall of the groove plate. Thus, when the groove plate moves up and down, one end of the shaft moves up and down, which in turn causes the insertion rod to move left and right.

[0015] Compared with the prior art, this utility model provides a device for testing the heat shrinkability of heat shrink packaging film, which has the following beneficial effects:

[0016] 1. This utility model uses a pull rod installed in the device. When the pull rod is pulled, the rotating rod drives the slot plate to move, which causes one end of the shaft to move up and down, thereby causing the other end of the shaft to drive the insertion rod to move left and right. When the insertion rod is disengaged from the connecting rod, the heating plate can be removed. When the pull rod is released, the spring pushes the slot plate to move, which causes the insertion rod to move in the opposite direction. When the insertion rod is inserted into the connecting rod, the heating plate is connected to the equipment, thus achieving the effect of replacing the heating plate.

[0017] 2. In this utility model, a fixing screw is installed inside the device and is threadedly connected to the device plate. When the fixing screw rotates, it moves up and down. When the fixing screw comes into contact with the packaging film, the packaging film is squeezed and fixed. Then the heating plate is activated to complete the test. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a front sectional view of the structure of this utility model;

[0020] Figure 3 This is a partially enlarged frontal cross-sectional view of the structure of this utility model.

[0021] The components are: 1. base box; 2. placement plate; 3. device plate; 4. fixing screw; 5. cover plate; 6. connecting box; 7. device pipe; 8. connecting rod; 9. heating plate; 10. auxiliary pipe; 11. insertion rod; 12. shaft; 13. rotating rod; 14. slot plate; 15. pull rod; 16. spring. Detailed Implementation

[0022] 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.

[0023] Please see Figures 1-3 A device for testing the heat shrinkability of heat shrink packaging film, comprising a base box 1;

[0024] like Figures 1-3 As shown, a placement plate 2 is provided on one side of the inner wall of the base box 1, a device plate 3 is provided on one side of the inner wall of the base box 1, a fixing screw 4 is provided on one side of the outer surface of the device plate 3, a cover plate 5 is provided on one side of the outer surface of the base box 1, a connecting box 6 is provided on one side of the outer surface of the cover plate 5, a device tube 7 is provided inside the connecting box 6, a connecting rod 8 is provided inside the device tube 7, a heating plate 9 is provided at one end of the connecting rod 8, an auxiliary tube 10 is provided inside the connecting box 6, an insertion rod 11 is provided inside the auxiliary tube 10, a shaft 12 is provided on one side of the outer surface of the insertion rod 11, a rotating rod 13 is provided at one end of the shaft 12, a groove plate 14 is provided at one end of the rotating rod 13, a pull rod 15 is provided on one side of the outer surface of the groove plate 14, and a spring 16 is provided on one side of the outer surface of the groove plate 14.

[0025] Specifically, such as Figures 1-3 As shown, there are two device tubes 7, and the two device tubes 7 are evenly arranged inside the connecting box 6.

[0026] Specifically, such as Figures 1-3 As shown, one end of the device tube 7 contacts one side of the inner wall of the connecting box 6, and passes through one side of the inner wall of the connecting box 6 to one side of the outer surface of the connecting box 6, and is fixedly connected to the connecting box 6.

[0027] Specifically, such as Figures 1-3 As shown, one side of the outer surface of the connecting box 6 contacts one side of the outer surface of the cover plate 5, and passes through one side of the outer surface of the cover plate 5 to the other side of the outer surface of the cover plate 5, and is fixedly connected to the cover plate 5.

[0028] Specifically, such as Figures 1-3 As shown, there are multiple shafts 12, and the multiple shafts 12 are arranged in pairs on one side of the outer surface of the device tube 7 on both the left and right sides.

[0029] Specifically, such as Figures 1-3 As shown, one end of the auxiliary tube 10 is fixedly connected to one side of the inner wall of the connecting box 6, and the other end of the auxiliary tube 10 contacts one side of the outer surface of the device tube 7, penetrates one side of the outer surface of the device tube 7, and enters the device tube 7, and is fixedly connected to the device tube 7.

[0030] With the above technical solution, the upper and lower sides of the inner wall of the auxiliary tube 10 are provided with sliding grooves, and one side of the outer surface of the sliding groove contacts one side of the inner wall of the auxiliary tube 10 and penetrates one side of the inner wall of the auxiliary tube 10 to one side of the outer surface of the auxiliary tube 10. The insertion rod 11 is set inside the auxiliary tube 10, and a sliding rod is provided on one side of the outer surface of the insertion rod 11. One end of the sliding rod is fixedly connected to one side of the outer surface of the insertion rod 11, and the other end of the sliding rod is slidably connected to the sliding groove. This makes the insertion rod 11 more stable when it moves left and right.

[0031] Furthermore, there are multiple shafts 12, and each pair of shafts 12 forms a group. Within each group of shafts 12, one end of the right shaft 12 is connected to one side of the outer surface of the insertion rod 11 via a bearing, and one end of the left shaft 12 is connected to one side of the outer surface of the auxiliary tube 10 via a bearing. The left and right shafts 12 are connected by a rotating shaft, and the rotating shaft is connected to a rotating rod 13. The other end of the rotating rod 13 is slidably connected to the inner wall of the groove plate 14. Thus, when the groove plate 14 moves up and down, one end of the shaft 12 moves up and down, which in turn causes the insertion rod 11 to move left and right.

[0032] In use, by pulling the lever 15, the rotating rod 13 moves upward, causing one end of the shaft 12 to move upward, which in turn causes the other end of the shaft 12 to drive the insertion rod 11 to move. Then, the connecting rod 8 is inserted into the device tube 7, and the lever 15 is released, causing the spring 16 to push the slot plate 14 to move, which causes one end of the shaft 12 to move downward, causing the insertion rod 11 to move in the opposite direction. When the insertion rod 11 is inserted into the connecting rod 8, the heating plate 9 is connected to the equipment, and the film is placed on the placement plate 2. The fixing screw 4 is rotated to fix the film, so that the device can be used normally.

[0033] 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 device for testing the heat shrinkability of heat-shrinkable packaging film, comprising a base box (1), characterized in that: A placement plate (2) is provided on one side of the inner wall of the bottom box (1), a device plate (3) is provided on one side of the inner wall of the bottom box (1), a fixing screw (4) is provided on one side of the outer surface of the device plate (3), a cover plate (5) is provided on one side of the outer surface of the bottom box (1), a connecting box (6) is provided on one side of the outer surface of the cover plate (5), a device tube (7) is provided inside the connecting box (6), a connecting rod (8) is provided inside the device tube (7), a heating plate (9) is provided at one end of the connecting rod (8), an auxiliary tube (10) is provided inside the connecting box (6), an insertion rod (11) is provided inside the auxiliary tube (10), a shaft (12) is provided on one side of the outer surface of the insertion rod (11), a rotating rod (13) is provided at one end of the shaft (12), a groove plate (14) is provided at one end of the rotating rod (13), a pull rod (15) is provided on one side of the outer surface of the groove plate (14), and a spring (16) is provided on one side of the outer surface of the groove plate (14).

2. The heat shrink performance testing device for heat shrink packaging film according to claim 1, characterized in that: The number of device tubes (7) is two, and the two device tubes (7) are evenly arranged in the connecting box (6).

3. The heat shrink performance testing device for heat shrink packaging film according to claim 1, characterized in that: One end of the device tube (7) contacts one side of the inner wall of the connecting box (6), and passes through one side of the inner wall of the connecting box (6) to one side of the outer surface of the connecting box (6), and is fixedly connected to the connecting box (6).

4. The heat shrink performance testing device for heat shrink packaging film according to claim 1, characterized in that: The outer surface of the connecting box (6) contacts the outer surface of the cover plate (5) on one side, and passes through the outer surface of the cover plate (5) to the other side of the outer surface of the cover plate (5), and is fixedly connected to the cover plate (5).

5. The heat shrink performance testing device for heat shrink packaging film according to claim 1, characterized in that: The number of shafts (12) is multiple, and the multiple shafts (12) are arranged in pairs, evenly distributed on one side of the outer surface of the device tube (7) on the left and right sides.

6. The heat shrinkability testing device for heat shrink packaging film according to claim 1, characterized in that: One end of the auxiliary tube (10) is fixedly connected to one side of the inner wall of the connecting box (6), and the other end of the auxiliary tube (10) contacts one side of the outer surface of the device tube (7), and penetrates one side of the outer surface of the device tube (7) to the inside of the device tube (7), and is fixedly connected to the device tube (7).

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