A cpe film heat seal gradient tester

Abstract

The present disclosure relates to the technical field of CPE film testing equipment, and one embodiment of the present disclosure provides a CPE film heat sealing gradient tester, which comprises a tester main body and a groove, the groove is arranged on the surface of the tester main body, leveling guide-in assemblies are arranged on both sides in the groove, a top plate is arranged on the top of the tester main body, a heating controller is installed on the top plate, a heating assembly is arranged between the top plate and the groove, side grooves are arranged on both sides in the groove, a plurality of pulleys are rotatably connected in the side grooves, movable cavities are arranged at both ends of the bottom of the groove, support strips are movably sleeved and connected vertically in the movable cavities, a driving motor is installed in the inner cavity, the output end of the driving motor is connected with one of the pulleys, the output end of the driving motor and the one pulley are both provided with transmission wheels, and the transmission wheels are connected through a belt transmission. Through the above technical scheme, the technical problem that the CPE film is soft and thin, and wrinkles are easily generated when the CPE film is put into the tester in the prior art is solved.

Description

Technical Field

[0001] The embodiments disclosed herein relate to the technical field of CPE film testing equipment, specifically to a CPE film heat-sealing gradient tester. Background Technology

[0002] PE film is made from high-density polyethylene (HDPE) as the main raw material, which is modified by chlorination. During the chlorination process, chlorine atoms partially replace hydrogen atoms in the polyethylene molecule, thereby changing the molecular structure and properties of polyethylene and giving it some unique characteristics.

[0003] Performance characteristics: CPE membranes possess excellent flexibility, weather resistance, and chemical corrosion resistance. They maintain stable performance over a wide temperature range and are not easily affected by external environmental factors. Furthermore, CPE membranes exhibit superior tensile strength and puncture resistance, capable of withstanding a certain degree of external pulling and puncture forces without breaking.

[0004] Applications: Due to its excellent performance, CPE film has been widely used in many fields. In the packaging industry, it is commonly used for packaging food, pharmaceuticals, and daily necessities, providing excellent protection and preservation. In agriculture, CPE film can be used as agricultural film, possessing properties such as heat insulation, moisture retention, and light transmission, which helps crop growth. Furthermore, CPE film can also be used in the construction, electronics, and automotive industries, such as waterproof building membranes, protective films for electronic devices, and automotive interior parts.

[0005] In the production and R&D of CPE film, the heat-sealing gradient test is a crucial step in evaluating its heat-sealing performance. This requires a specialized CPE film heat-sealing gradient tester. Under specific temperature, pressure, and time conditions, the packaging material is heat-sealed, creating a gradient region with different heat-sealing temperatures. Then, the heat-sealed samples are subjected to peel or tensile tests to assess the heat-sealing strength, heat-sealing effect, and other performance indicators of the packaging material at different heat-sealing temperatures, thereby determining the optimal heat-sealing temperature range for the material. However, existing CPE film heat-sealing gradient testers have significant shortcomings.

[0006] Current testing equipment cannot level the CPE film during operation. CPE film is soft and thin, making it prone to wrinkling when placed in the testing equipment. These wrinkles not only affect the uniformity of heat sealing during testing, resulting in an inaccurate reflection of the film's actual performance, but also cause deviations in test data. For example, the heat seal strength at wrinkled areas may differ significantly from that at flat areas, leading to inaccurate test results and failing to provide reliable evidence for product quality assessment and process improvement. Furthermore, wrinkles can cause localized overheating or poor heat sealing, interfering with the normal conduct of the test. Therefore, it is essential to develop a new heat-sealing gradient testing equipment capable of leveling the CPE film and preventing wrinkles during placement. This will help improve the accuracy and reliability of testing and promote the development of the CPE film industry. Utility Model Content

[0007] To overcome the above-mentioned defects, the embodiments of this disclosure provide a CPE film heat-sealing gradient tester, which solves the technical problem that the CPE film is relatively soft and thin, and wrinkles are easily formed when it is placed in the tester.

[0008] According to one aspect, at least one embodiment of this disclosure provides a CPE film heat-sealing gradient tester, comprising: The testing instrument body and the groove, wherein the groove is formed on the surface of the testing instrument body; A leveling and guiding component is disposed on both sides of the groove; The test instrument includes a top plate, a heating controller, and a heating assembly. The top plate is located on the top of the main body of the test instrument, the heating controller is mounted on the top plate, and the heating assembly is located in the groove between the top plate and the groove. The leveling and guiding component includes a transmission cavity, which is opened on both sides inside the main body of the testing instrument. Side grooves are opened on both sides of the groove, and several pulleys are rotatably connected in the side grooves.

[0009] As a further technical solution, movable cavities are provided at both ends of the bottom of the groove, and support bars are vertically and movably connected in the movable cavities. Several springs are installed on the support bars, and inner cavities are provided on both sides of the main body of the testing instrument.

[0010] As a further technical solution, a drive motor is installed in the inner cavity, and the output end of the drive motor is connected to one of the pulleys. One of the pulleys and the output end of the drive motor are both provided with a transmission wheel, and the transmission wheels are connected by belt drive.

[0011] As a further technical solution, the heating assembly includes a pair of telescopic cylinders, both of which are installed at the bottom of the main body of the testing instrument. The output end of the telescopic cylinder is connected to the top plate, and a heating platform is provided at the bottom of the top plate.

[0012] As a further technical solution, the bottom of the heating platform is provided with several pairs of sleeves, each sleeve containing a heating block, and the groove contains several support blocks, the support blocks corresponding to the heating blocks.

[0013] As a further technical solution, the surface of the pulley is a rubber structure with high friction.

[0014] As a further technical solution, one end of the side groove is an open structure, the upper surface of the support bar is a smooth surface, and the right angle of one end of the support bar is an arc-shaped transition structure.

[0015] As a further technical solution, a shield is provided on the top of the main body of the testing instrument, and the shield covers the outside of the top plate.

[0016] As a further technical solution, a baffle is rotatably connected to the outer end face of the top plate via a pin.

[0017] The beneficial effects of the embodiments disclosed herein are as follows: 1. The beneficial effect of the leveling and infeeding component in this disclosure is that the drive motor rotates the pulley to realize the conveying of the CPE film. The cooperation of the movable cavity, support bar and spring can adaptively adjust the support according to the condition of the CPE film. The rubber surface of the pulley increases the friction, making the conveying more stable. The side groove with the open structure and the support bar with the special structure facilitate the precise placement of the CPE film. This component effectively avoids wrinkles of the CPE film when it is placed into the testing instrument, ensuring the accuracy and reliability of the test data.

[0018] 2. In this disclosure, the beneficial effect of the heating component is that the telescopic cylinder precisely controls the height of the top plate, thereby accurately adjusting the hot pressing pressure. The heating table and heating block provide stable heat to meet the temperature requirements of the heat sealing gradient test. The support block cooperates with the heating block to provide stable support for the CPE film. This component ensures that the hot pressing operation of the heat sealing gradient test is carried out accurately, improving the scientificity and effectiveness of the test. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0020] Figure 1 This is a schematic diagram of a structure in one embodiment of the present disclosure; Figure 2 This is an isometric drawing of the present disclosure; Figure 3 This is an isometric sectional view of the present disclosure; Figure 4 This is another isometric sectional view of this disclosure; Figure 5 This is yet another isometric sectional view from which this disclosure is made; In the diagram: 1. Main body of the testing instrument; 2. Groove; 3. Top plate; 4. Heating controller; 5. Leveling and guiding assembly; 5-1. Transmission cavity; 5-2. Side groove; 5-3. Pulley; 5-4. Movable cavity; 5-5. Support bar; 5-6. Spring; 5-7. Inner cavity; 5-8. Drive motor; 5-9. Transmission wheel; 6. Heating assembly; 6-1. Telescopic cylinder; 6-2. Heating platform; 6-3. Sleeve; 6-4. Heating block; 6-5. Support block; 7. Shield; 8. Baffle. Detailed Implementation

[0021] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0022] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0023] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0024] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0025] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0026] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0027] like Figures 1-5 As shown, it illustrates a CPE film heat-sealing gradient tester according to an embodiment of the present disclosure, comprising: The testing instrument body 1 and the groove 2 are formed on the surface of the testing instrument body 1; Leveling and guiding component 5, wherein the leveling and guiding component 5 is disposed on both sides of the groove 2; The top plate 3, the heating controller 4, and the heating component 6 are provided. The top plate 3 is located on the top of the main body 1 of the testing instrument. The heating controller 4 is installed on the top plate 3. The heating component 6 is located in the top plate 3 and the groove 2. The leveling and guiding component 5 includes a transmission cavity 5-1, which is located on both sides of the main body 1 of the testing instrument. Side grooves 5-2 are provided on both sides of the groove 2, and several pulleys 5-3 are rotatably connected within each side groove 5-2. Movable cavities 5-4 are provided at both ends of the bottom of the groove 2, and support bars 5-5 are vertically and movably connected within each movable cavity 5-4. Several springs 5-6 are fitted onto each support bar 5-5. Inner cavities 5-7 are provided on both sides of the main body 1 of the testing instrument, and a drive motor 5-8 is installed in each inner cavity 5-7. The output end of the drive motor 5-8 is connected to one of the pulleys 5-3. A transmission wheel 5-9 is provided on both the pulley 5-3 and the output end of the drive motor 5-8, and the transmission wheels 5-9 are connected by a belt drive.

[0028] In some examples, when testing CPE films, it is necessary to smoothly transport the CPE film into the testing instrument to ensure the accuracy and reliability of the test results. For this purpose, a leveling and guiding component 5 is designed. This component includes transmission cavities 5-1 formed on both sides of the main body 1 of the testing instrument, and side grooves 5-2 formed on both sides of the groove 2. Several rotatably connected pulleys 5-3 are key components for transporting the CPE film. A drive motor 5-8 is installed in the inner cavities 5-7 formed on both sides of the main body 1 of the testing instrument. Its output end is connected to one of the pulleys 5-3 via a transmission wheel 5-9 and a leather belt. The belt drive connection allows the pulley 5-3 to rotate via the belt drive when the drive motor 5-8 starts, thereby conveying the CPE film. The movable cavities 5-4 at both ends of the bottom of the groove 2 are vertically movable and connected to the support bar 5-5, which is fitted with several springs 5-6. The elasticity of the springs 5-6 allows the support bar 5-5 to adaptively adjust according to the thickness of the CPE film and the conveying state, providing stable support for the CPE film and ensuring that it remains flat during the conveying process. Together with the pulley 5-3, the CPE film can be conveyed into the testing instrument in a flat manner.

[0029] like Figures 1-5 As shown in the figure, the heating component 6 in this embodiment includes a pair of telescopic cylinders 6-1. The telescopic cylinders 6-1 are both installed at the bottom of the main body 1 of the testing instrument. The output end of the telescopic cylinders 6-1 is connected to the top plate 3. A heating platform 6-2 is provided at the bottom of the top plate 3. Several pairs of sleeves 6-3 are provided at the bottom of the heating platform 6-2. A heating block 6-4 is inserted into each sleeve 6-3. Several support blocks 6-5 are provided in the groove 2. The support blocks 6-5 correspond to the heating blocks 6-4 in position.

[0030] In some examples, a heating assembly 6 is designed to ensure accurate hot pressing during the hot pressing test of CPE film. This assembly includes a pair of telescopic cylinders 6-1 installed at the bottom of the main body 1 of the testing instrument. The output end of the cylinders 6-1 is connected to the top plate 3. The telescopic cylinders 6-1 can provide the power for the top plate 3 to move up and down. By controlling the telescopic cylinders 6-1, the height of the top plate 3 can be precisely adjusted, thereby controlling the pressure applied to the CPE film during the hot pressing process. The heating platform 6-2 at the bottom of the top plate 3 is a key component for generating heat. Several pairs of sleeves 6-3 are provided at the bottom of the heating platform 6-2. The heating blocks 6-4 inserted in the sleeves 6-3 can conduct heat and provide the required temperature conditions for the hot pressing test. Several support blocks 6-5 are provided in the groove 2, corresponding to the positions of the heating blocks 6-4. The support blocks 6-5 can provide support for the CPE film placed in the groove 2 and work with the heating blocks 6-4 to perform the hot pressing operation on the CPE film.

[0031] For example, such as Figure 1As shown, the surface of the pulley 5-3 is a rubber structure with high friction.

[0032] In some examples, the rubber structure can increase the friction of pulley 5-3, making the CPE film carried by pulley 5-3 more stable.

[0033] For example, such as Figure 1 As shown, one end of the side groove 5-2 is an open structure, the upper surface of the support bar 5-5 is a smooth surface, and the right angle of one end of the support bar 5-5 is an arc-shaped transition structure.

[0034] In some examples, the open structure, combined with the rounded corners, allows for more precise placement of the CPE film.

[0035] For example, such as Figure 1 As shown, a shield 7 is provided on the top of the main body 1 of the testing instrument, and the shield 7 is wrapped around the outside of the top plate 3.

[0036] In some examples, the presence of a shield 7 increases the protective effect of the surrounding area, preventing burns from accidental operation.

[0037] For example, such as Figure 1 As shown, the outer end face of the top plate 3 is rotatably connected to a baffle 8 via a pin.

[0038] In some examples, a baffle 8 that can be rotated upwards and opened can be opened upwards during maintenance, providing protection without affecting normal testing.

[0039] In actual use: Place the CPE film on the support bar 5-5, start the drive motor 5-8, and drive the pulley 5-3 to rotate through the transmission wheel 5-9 and belt. With the rotation of the pulley 5-3 and the support of the support bar 5-5, the CPE film is smoothly placed into the groove 2. After adjusting the position of the CPE film, start the telescopic cylinder 6-1 to lower the top plate 3. The heating block 6-4 at the bottom of the heating platform 6-2 approaches the CPE film. The temperature of the heating block 6-4 is controlled by the heating controller 4 to conduct a heat sealing gradient test on the CPE film. After the test, the telescopic cylinder 6-1 drives the top plate 3 to rise, and the CPE film can be removed.

[0040] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. A CPE film heat-sealing gradient tester, characterized in that, include: The test instrument body (1) and the groove (2) are formed on the surface of the test instrument body (1); A leveling and guiding component (5) is disposed on both sides inside the groove (2); The top plate (3), heating controller (4) and heating assembly (6) are provided. The top plate (3) is located on the top of the main body (1) of the testing instrument. The heating controller (4) is installed on the top plate (3). The heating assembly (6) is located in the top plate (3) and the groove (2). The leveling and guiding component (5) includes a transmission cavity (5-1), which is opened on both sides of the main body (1) of the testing instrument. Side grooves (5-2) are opened on both sides of the groove (2), and several pulleys (5-3) are rotatably connected in the side grooves (5-2).

2. The CPE film heat-sealing gradient tester according to claim 1, characterized in that, The groove (2) has movable cavities (5-4) at both ends of the bottom. A support bar (5-5) is vertically and movablely connected in the movable cavity (5-4). Several springs (5-6) are fitted on the support bar (5-5). The main body (1) of the testing instrument has inner cavities (5-7) on both sides.

3. The CPE film heat-sealing gradient tester according to claim 2, characterized in that, A drive motor (5-8) is installed in the inner cavity (5-7). The output end of the drive motor (5-8) is connected to one of the pulleys (5-3). Both the pulley (5-3) and the output end of the drive motor (5-8) are provided with a transmission wheel (5-9). The transmission wheels (5-9) are connected by belt drive.

4. The CPE film heat-sealing gradient tester according to claim 1, characterized in that, The heating component (6) includes a pair of telescopic cylinders (6-1), both of which are installed at the bottom of the main body (1) of the testing instrument. The output end of the telescopic cylinder (6-1) is connected to the top plate (3), and a heating platform (6-2) is provided at the bottom of the top plate (3).

5. A CPE film heat-sealing gradient tester according to claim 4, characterized in that, The bottom of the heating platform (6-2) is provided with several pairs of sleeves (6-3), each sleeve (6-3) is fitted with a heating block (6-4), and the groove (2) is provided with several support blocks (6-5), the support blocks (6-5) and the heating blocks (6-4) are positioned corresponding to each other.

6. The CPE film heat-sealing gradient tester according to claim 1, characterized in that, The surface of the pulley (5-3) is a rubber structure with high friction.

7. A CPE film heat-sealing gradient tester according to claim 2, characterized in that, The side groove (5-2) has an open structure at one end, the upper surface of the support strip (5-5) is a smooth surface, and the right angle at one end of the support strip (5-5) is an arc-shaped transition structure.

8. The CPE film heat-sealing gradient tester according to claim 1, characterized in that, The top of the main body (1) of the test instrument is provided with a shield (7), which is wrapped around the outside of the top plate (3).

9. A CPE film heat-sealing gradient tester according to claim 1, characterized in that, The outer end face of the top plate (3) is rotatably connected to a baffle (8) via a pin.

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