PET (Polyethylene Terephthalate) film temperature resistance detection equipment

Abstract

The invention relates to the technical field of PET film temperature resistance detection, and discloses PET film temperature resistance detection equipment which comprises a supporting main body, a first sliding groove is formed in the supporting main body, a supporting rod is slidably connected into the first sliding groove, a sliding rail support is fixed to the top end of the supporting rod, and a sliding rail is fixed to the sliding rail support. And an adjusting block connected through a transverse moving assembly is arranged in the sliding rail support, a mounting block connected through a pushing assembly is arranged in the adjusting block, movable shafts are arranged on the two sides of the mounting block, and the outer walls of the movable shafts are rotationally connected with a protective shell. According to the invention, the mounting frame is rotated and turned over through the adjusting plate on the adjusting shaft, the undetected surface of the PET film is turned over upwards, and then the locking bolt on the adjusting plate and the second threaded hole are locked and mounted, so that the double-sided detection work of the PET film is realized, the position of the PET film does not need to be fixed or adjusted again, and the detection efficiency is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of PET film heat resistance performance detection, in particular to a PET film heat resistance performance detection device. Background Art

[0002] PET film is a packaging film with comprehensive performance. It has good transparency and gloss; good air tightness and fragrance retention; moderate moisture resistance, and its moisture permeability decreases at low temperatures. PET film has excellent mechanical properties, and its toughness is the best among all thermoplastics.

[0003] When the PET film heat resistance test equipment is used for testing, the heating block in the equipment is precisely raised and lowered to contact the PET film. Once in contact, the heating block begins to heat the PET film. At the same time, the temperature sensors and other monitoring devices inside the equipment will record and analyze key parameters such as temperature changes and morphological changes of the PET film during the heating process in real time. These parameters are then used to evaluate the heat resistance of the PET film. The heating block is equipped with a heating element to heat the PET film to a preset high temperature state. At the same time, the temperature sensor monitors the temperature changes of the PET film in real time to ensure that the heating process is carried out within the control range. The equipment automatically records the data of the entire testing process, including temperature curves, morphological change images, etc., for subsequent analysis and evaluation.

[0004] The differences in the production process of PET film lead to different characteristics on both sides, such as surface treatment differences: During the manufacturing process of PET film, both sides may undergo different treatment processes (such as corona treatment, coating, plating, etc.), resulting in differences in the chemical structure and physical properties of the two sides. For example, the corona-treated surface may be more susceptible to thermal oxidation, so it is necessary to test both sides of the PET film.

[0005] Based on the above, the existing detection equipment still has the following problems when used: 1. After the heating block detects one side of the PET film, in order to improve the detection efficiency, it is necessary to detect the other side. However, it is usually necessary to re-fix or adjust the position of the PET film, which not only increases the complexity of the operation, but also greatly reduces the detection efficiency; 2. The test subject is often still in a high temperature state after the test is completed. If it comes into direct contact with the staff, it is very easy to cause safety hazards such as burns; 3. The equipment has a limited adjustment range for the detection subject, making it difficult to achieve comprehensive detection of PET films of different sizes, and can only detect one position of the film. Summary of the invention

[0006] Technical issues solved In view of the deficiencies in the prior art, the present invention provides a PET film temperature resistance testing device, which is mainly intended to solve the problem that after a heating block has tested one side of a PET film, in order to improve the testing efficiency, it is necessary to test the other side. However, it is usually necessary to re-fix or adjust the position of the PET film, which not only increases the complexity of the operation, but also greatly reduces the testing efficiency. In addition, the testing subject is often still in a high temperature state after the test is completed. If it comes into direct contact with the staff, it is very likely to cause safety hazards such as burns. At the same time, the equipment has a limited adjustment range for the testing subject, making it difficult to achieve comprehensive testing of PET films of different sizes, and can only test one position of the film.

[0007] Technical Solution To achieve the above object, the present invention provides the following technical solutions: A PET film temperature resistance performance testing device, comprising a supporting body, a first slide groove is provided inside the supporting body, a supporting rod is slidably connected inside the first slide groove, a slide rail bracket is fixed on the top of the supporting rod, an adjusting block connected by a transverse moving component is arranged inside the slide rail bracket, a pushing component for driving a mounting block to move in a vertical direction is arranged on the adjusting block, a testing body is arranged at the lower end of the mounting block, movable shafts are arranged on both sides of the mounting block, and a protective shell cooperating with the testing body is rotatably connected to the outer wall of the movable shaft; Adjustment shafts are rotatably provided at two opposite ends of the support body, a mounting frame is fixed to the inner end of the adjustment shaft, an adjustment plate is fixed to one end of the adjustment shaft extending to the outside of the support body, two mounting brackets for fixing the two ends of the PET film are provided in the mounting frame, and adjustment components for adjusting the distance between the two mounting brackets are provided on the two mounting brackets.

[0008] As a further solution of the present invention, a first motor is fixed at an edge of one end of the support body, a first screw is connected to an output end of the first motor, and the first screw is located inside the slide groove, and the support rod is threadedly connected to the first screw.

[0009] As a further solution of the present invention, the transverse movement assembly includes a second motor fixed at one end of the slide rail bracket, the output end of the second motor is connected to a second screw, the second screw is located inside the slide rail bracket, the adjustment block is slidingly connected to the slide rail bracket, and the second screw is threadedly connected to the adjustment block.

[0010] As a further solution of the present invention, the pushing assembly includes a hydraulic rod that passes through and is fixed inside the adjusting block, and the mounting block is fixedly connected to the output end of the hydraulic rod.

[0011] As a further solution of the present invention, two positioning brackets cooperating with the adjusting plate are symmetrically provided on both sides of the adjusting shaft, the positioning bracket is fixedly connected to the supporting body, the supporting body is provided with a first threaded hole and a second threaded hole symmetrically arranged with the adjusting shaft as the center, the end of the adjusting plate away from the adjusting shaft is provided with a locking bolt cooperating with the first threaded hole or the second threaded hole, and the positioning bracket has an L-shaped structure.

[0012] As a further solution of the present invention, the adjustment assembly includes a pair of fixed plates fixed to the upper end of the mounting frame, the inner wall of the fixed plate is rotatably connected with a bidirectional screw, the two ends of the mounting bracket are slidably connected to the inner wall of the mounting frame, the two mounting brackets are threadedly connected to the bidirectional screw, and the mounting frame is also provided with a positioning rod parallel to the axis of the bidirectional screw, the positioning rod is slidably connected to the mounting bracket, the upper end of the mounting bracket is internally threaded with a bolt, the lower end of the bolt is rotatably connected with a clamping plate, and the clamping plate is slidably connected to the inner wall of the mounting bracket.

[0013] As a further solution of the present invention, the protective shells are provided in two groups, and the two groups of protective shells are symmetrically distributed with respect to the detection body.

[0014] As a further solution of the present invention, second rotating shafts are arranged on both sides of the upper end surface of the detection body, a first rotating shaft is arranged on the inner top wall of the protective shell, and an electric push rod is arranged between the first rotating shaft and the second rotating shaft.

[0015] Beneficial Effects Compared with the prior art, the present invention provides a PET film temperature resistance performance testing device, which has the following beneficial effects: 1. The present invention rotates and turns the mounting frame through the adjusting plate on the adjusting shaft, flips the undetected PET film upward, and then locks the locking bolt on the adjusting plate and the second threaded hole to achieve double-sided detection of the PET film without re-fixing or adjusting the position of the PET film, thereby greatly improving the detection efficiency.

[0016] 2. The present invention rotates the detection body downward along the mounting block through a movable shaft, and closes and protects the outer side of the detection body through a protective shell to prevent the high temperature of the detection body from contacting the staff, which can effectively prevent the high temperature of the detection body from contacting the staff, thereby protecting the safety of the staff.

[0017] 3. The adjusting block of the present invention is longitudinally adjusted along the slide rail bracket through the second screw rod, thereby longitudinally adjusting the detection body, and then driving the support rod to slide on the support body along the slide groove through the first screw rod, and controlling the detection body to adjust the horizontal position of the support body, so that the detection body can be conveniently moved to different positions for detection, thereby realizing comprehensive detection of PET film.

[0018] 4. The present invention rotates the bolt to slide the clamp plate downward along the inner wall of the mounting bracket, thereby clamping and fixing the PET film, ensuring the stability and position accuracy of the PET film during the detection process, avoiding detection errors caused by movement or deformation of the PET film, and the overall operation is simple and convenient.

[0019] 5. When the bidirectional screw rod is rotated in the present invention, two sets of mounting brackets are opened and closed on the mounting frame through the positioning rod, so as to be adjusted according to the size of the PET film, so that the equipment can easily adapt to PET films of different sizes, thereby improving the versatility and flexibility of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a PET film temperature resistance performance testing device proposed by the present invention; Figure 2 A schematic diagram of a three-dimensional structure of a hydraulic rod adjustment of a PET film temperature resistance performance testing device proposed by the present invention; Figure 3 A schematic diagram of a three-dimensional structure of a mounting frame connection of a PET film temperature resistance performance testing device proposed by the present invention; Figure 4 A schematic diagram of the three-dimensional structure of the mounting bracket adjustment of a PET film temperature resistance performance testing device proposed by the present invention; Figure 5 A schematic diagram of a three-dimensional structure of a protective housing connection of a PET film temperature resistance performance testing device proposed by the present invention; Figure 6 This is a schematic diagram of the internal structure of a mounting bracket of a PET film temperature resistance performance testing device proposed by the present invention.

[0021] In the figure: 1. supporting body; 2. slide groove; 201. first screw rod; 202. supporting rod; 203. slide rail bracket; 204. second screw rod; 205. adjusting block; 206. hydraulic rod; 207. first motor; 208. second motor; 3. adjusting shaft; 301. mounting frame; 302. adjusting plate; 303. locking bolt; 4. first threaded hole; 401. second threaded hole; 402. positioning bracket; 5. mounting bracket; 501. fixing plate; 502. two-way screw rod; 503. positioning rod; 6. bolt; 601. clamping plate; 7. mounting block; 701. movable shaft; 702. protective shell; 703. first rotating shaft; 704. second rotating shaft; 705. electric push rod; 8. detection body. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0023] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in the present invention, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0024] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0025] Reference Figure 1-Figure 6A PET film temperature resistance performance testing device comprises a supporting body 1, a first slide groove 2 is provided inside the supporting body 1, a supporting rod 202 is slidably connected inside the first slide groove 2, a slide rail bracket 203 is fixed to the top of the supporting rod 202, an adjusting block 205 connected by a transverse movement component is arranged inside the slide rail bracket 203, a mounting block 7 connected by a push component is arranged inside the adjusting block 205, movable shafts 701 are arranged on both sides of the mounting block 7, a protective shell 702 is rotatably connected to the outer wall of the movable shaft 701, an adjusting shaft 3 is penetrated and connected inside the two ends of the supporting body 1, a mounting frame 301 is fixed to the inner end of the adjusting shaft 3, a mounting bracket 5 connected by an adjusting component is arranged on the outer wall of the mounting frame 301, and a clamping plate 601 is slidably connected to the inner wall of the mounting bracket 5.

[0026] When in use, a first motor 207 is fixed to the edge of one end of the support body 1 , the output end of the first motor 207 is connected to the first screw 201 , and the first screw 201 is located inside the slide slot 2 , and the support rod 202 is threadedly connected to the first screw 201 .

[0027] Specifically, the first screw rod 201 is driven by the first motor 207 , thereby driving the support rod 202 to slide on the support body 1 along the slide groove 2 through the first screw rod 201 , and controlling the detection body 8 to adjust the horizontal position of the support body 1 .

[0028] When in use, the transverse movement assembly includes a second motor 208 fixed at one end of the slide rail bracket 203, the output end of the second motor 208 is connected to the second screw 204, the second screw 204 is located inside the slide rail bracket 203, the adjustment block 205 is located inside the slide rail bracket 203 and is slidably connected, and the second screw 204 and the adjustment block 205 are slidably connected.

[0029] Specifically, the second screw 204 is driven by the second motor 208, so that the adjustment block 205 can be longitudinally adjusted along the slide rail bracket 203 through the second screw 204, thereby longitudinally adjusting the detection body 8, so that the detection body 8 can be conveniently moved to different positions for detection, thereby achieving comprehensive detection of the PET film.

[0030] When in use, the pushing assembly includes a hydraulic rod 206 that passes through and is fixed inside the adjusting block 205 , and the mounting block 7 is fixedly connected to the output end of the hydraulic rod 206 .

[0031] Specifically, the mounting block 7 is raised and lowered by a hydraulic rod 206 to bring the detection body 8 at the lower end of the mounting block 7 into contact with the PET film, start the temperature resistance test, heat the detection body 8, and monitor the temperature change of the PET film during the heating process in real time.

[0032] When in use, an adjustment plate 302 is fixed to one end of the adjustment shaft 3 extending to the outside of the support body 1, a positioning bracket 402 is fixed to the side wall of the support body 1, and a first threaded hole 4 and a second threaded hole 401 are opened on both sides of the positioning bracket 402 inside the support body 1, and a group of locking bolts 303 are arranged inside the upper end of the adjustment plate 302, and the first threaded hole 4 and the second threaded hole 401 are symmetrically distributed about the positioning bracket 402, and the positioning bracket 402 has an L-shaped structure.

[0033] Specifically, the provided installation frame 301 is used to install and support the PET film, and then the detection body 8 contacts the surface of the PET film for detection. Then, after one side is detected, the installation frame 301 is turned over by adjusting the adjustment plate 302 on the adjustment shaft 3, and the undetected side of the PET film is flipped upward, and then the locking bolt 303 on the adjustment plate 302 is locked and installed with the second threaded hole 401, so as to realize the double-sided detection of the PET film, without the need to re-fix or adjust the position of the PET film, thereby greatly improving the detection efficiency. When the installation frame 301 is first fixed, the locking bolt 303 on the adjustment plate 302 is locked and installed with the first threaded hole 4. At the same time, when the installation frame 301 is placed horizontally, the adjustment plate 302 is supported by the positioning bracket 402 with an L-shaped structure, thereby ensuring the stability of the installation frame 301.

[0034] When in use, the adjustment component includes a pair of fixed plates 501 fixed to the upper end of the mounting frame 301, the inner wall of the fixed plate 501 is rotatably connected with a bidirectional screw rod 502, the mounting bracket 5 is slidably connected to the inner wall of the mounting frame 301, the two ends of the mounting bracket 5 are threadedly connected to the bidirectional screw rod 502, and a positioning rod 503 is provided on the symmetrical side of the mounting frame 301 with respect to the bidirectional screw rod 502, the positioning rod 503 is slidably connected to the other end of the mounting bracket 5, the upper end of the mounting bracket 5 is internally threadedly connected with a bolt 6, and the lower end of the bolt 6 is rotatably connected to the upper end surface of the clamping plate 601.

[0035] Specifically, when fixing the PET film, the two ends of the PET film are placed on the lower end surface of the clamp 601, and then the bolt 6 is rotated to make the clamp 601 slide downward along the inner wall of the mounting bracket 5, so as to clamp and fix the PET film, thereby ensuring the stability and position accuracy of the PET film during the detection process, and avoiding detection errors caused by movement or deformation of the PET film. Then, when the bidirectional screw 502 is rotated, the two groups of mounting brackets 5 are opened and closed on the mounting frame 301 through the positioning rod 503, so as to be adjusted according to the size of the PET film, so that the equipment can easily adapt to PET films of different sizes, thereby improving the versatility and flexibility of the equipment, and the overall operation is simple and convenient.

[0036] When in use, the detection body 8 is fixed to the lower end of the mounting block 7, and the protective shell 702 is arranged in two groups, and the two groups of protective shells 702 are symmetrically distributed about the detection body 8. Second rotating shafts 704 are arranged on both sides of the upper end surface of the detection body 8, and the outer wall of the second rotating shaft 704 is rotatably connected to the base of the electric push rod 705, and the telescopic end of the electric push rod 705 is rotatably connected to the first rotating shaft 703.

[0037] Specifically, when the detection body 8 is detecting the PET film, the detection body 8 needs to be heated to work, and then after the detection is completed, the set electric push rod 705 shrinks, and the protective shell 702 is rotatably connected with the second rotation shaft 704 and the detection body 8 through the first rotating shaft 703, the electric push rod 705, the second rotating shaft 704, and the detection body 8, so that the detection body 8 is rotated downward along the mounting block 7 through the movable shaft 701, and the outer side of the detection body 8 is closed and protected by the protective shell 702 to prevent the high temperature of the detection body 8 from contacting the staff, thereby effectively preventing the high temperature of the detection body 8 from contacting the staff, thereby protecting the safety of the staff.

[0038] Working principle of the present invention: S1. First, when fixing the PET film, place the two ends of the PET film on the lower end surface of the clamping plate 601, and then rotate the bolt 6 to slide the clamping plate 601 downward along the inner wall of the mounting bracket 5, so as to clamp and fix the PET film, thereby ensuring the stability and position accuracy of the PET film during the detection process, and avoiding the detection error caused by the movement or deformation of the PET film. Then, when rotating the bidirectional screw rod 502, the two groups of mounting brackets 5 are opened and closed on the mounting frame 301 through the positioning rod 503, so as to adjust according to the size of the PET film, so that the equipment can easily adapt to PET films of different sizes, and then; S2, the mounting block 7 is then raised and lowered by the hydraulic rod 206, so as to make the detection body 8 at the lower end of the mounting block 7 contact the PET film, start the temperature resistance test, heat the detection body 8, and monitor the temperature change of the PET film during the heating process in real time. After one side is tested, the mounting frame 301 is turned over by the adjustment plate 302 on the adjustment shaft 3, and the untested side of the PET film is turned upward. Then, the locking bolt 303 on the adjustment plate 302 is locked and installed with the second threaded hole 401, so as to realize the double-sided testing of the PET film without re-fixing or adjusting the position of the PET film. S3. Finally, after the detection is completed, the set electric push rod 705 is retracted, and the protective shell 702 is rotationally connected with the second rotation shaft 704 and the detection body 8 through the first rotating shaft 703, the electric push rod 705, so that the detection body 8 is rotated downward along the mounting block 7 through the movable shaft 701, and the outer side of the detection body 8 is closed and protected by the protective shell 702 to prevent the high temperature of the detection body 8 from contacting the staff, which can effectively prevent the high temperature of the detection body 8 from contacting the staff.

[0039] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0040] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A PET film temperature resistance testing device, comprising a supporting body (1), characterized in that: A first slide groove (2) is provided inside the support body (1), a support rod (202) is slidably connected inside the first slide groove (2), a slide rail bracket (203) is fixed to the top of the support rod (202), an adjustment block (205) connected via a transverse movement component is provided inside the slide rail bracket (203), a push assembly for driving the mounting block (7) to move in a vertical direction is provided on the adjustment block (205), a detection body (8) is provided at the lower end of the mounting block (7), movable shafts (701) are provided on both sides of the mounting block (7), and a protective shell (702) cooperating with the detection body (8) is rotatably connected to the outer wall of the movable shaft (701); An adjustment shaft (3) is rotatably provided at two opposite ends of the support body (1); a mounting frame (301) is fixed to the inner end of the adjustment shaft (3); an adjustment plate (302) is fixed to one end of the adjustment shaft (3) extending to the outside of the support body (1); two mounting brackets (5) for fixing the two ends of the PET film are provided inside the mounting frame (301); and adjustment components for adjusting the distance between the two mounting brackets (5) are provided on the two mounting brackets (5).

2. A PET film temperature resistance testing device according to claim 1, characterized in that: A first motor (207) is fixed at an edge of one end of the support body (1); an output end of the first motor (207) is connected to a first screw rod (201); the first screw rod (201) is located inside the slide groove (2); and the support rod (202) is threadedly connected to the first screw rod (201).

3. A PET film temperature resistance testing device according to claim 1, characterized in that: The transverse movement assembly comprises a second motor (208) fixed at one end of the slide rail bracket (203); the output end of the second motor (208) is connected to a second screw rod (204); the second screw rod (204) is located inside the slide rail bracket (203); the adjustment block (205) is slidably connected to the slide rail bracket (203); and the second screw rod (204) is threadedly connected to the adjustment block (205).

4. A PET film temperature resistance testing device according to claim 1, characterized in that: The pushing assembly comprises a hydraulic rod (206) which passes through and is fixed inside the adjusting block (205), and the mounting block (7) is fixedly connected to the output end of the hydraulic rod (206).

5. A PET film temperature resistance testing device according to claim 1, characterized in that: Two positioning brackets (402) cooperating with the adjusting plate (302) are symmetrically arranged on both sides of the adjusting shaft (3); the positioning brackets (402) are fixedly connected to the supporting body (1); a first threaded hole (4) and a second threaded hole (401) symmetrically arranged around the adjusting shaft (3) are provided on the supporting body (1); a locking bolt (303) cooperating with the first threaded hole (4) or the second threaded hole (401) is provided at one end of the adjusting plate (302) away from the adjusting shaft (3); and the positioning bracket (402) is an L-shaped structure.

6. A PET film temperature resistance testing device according to claim 1, characterized in that: The adjustment assembly comprises a pair of fixing plates (501) fixed to the upper end of the mounting frame (301); the inner wall of the fixing plate (501) is rotatably connected to a bidirectional screw rod (502); the two ends of the mounting bracket (5) are slidably connected to the inner wall of the mounting frame (301); the two mounting brackets (5) are both threadedly connected to the bidirectional screw rod (502); the mounting frame (301) is also provided with a positioning rod (503) parallel to the axis of the bidirectional screw rod (502); the positioning rod (503) is slidably connected to the mounting bracket (5); the upper end of the mounting bracket (5) is internally threadedly connected to a bolt (6); the lower end of the bolt (6) is rotatably connected to a clamping plate (601); the clamping plate (601) is slidably connected to the inner wall of the mounting bracket (5).

7. A PET film temperature resistance testing device according to claim 1, characterized in that: The protective shells (702) are arranged in two groups, and the two groups of protective shells (702) are symmetrically distributed with respect to the detection body (8).

8. A PET film temperature resistance testing device according to claim 7, characterized in that: A second rotating shaft (704) is arranged on both sides of the upper end surface of the detection body (8), a first rotating shaft (703) is arranged on the inner top wall of the protective shell (702), and an electric push rod (705) is arranged between the first rotating shaft (703) and the second rotating shaft (704).

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