Film wrapping packaging characteristics testing equipment

Abstract

The present invention relates to the technical field of film packaging property testing, and specifically to a device for testing the properties of film wrapping packaging. The device comprises a U-shaped detection frame, the open end of which is slidably connected to a mobile frame. The open end of the U-shaped detection frame is provided with a drive assembly capable of controlling the movement of the mobile frame. The U-shaped detection frame is provided with a rotatable first film wrapping roller, and the mobile frame is provided with a rotatable second film wrapping roller. The first and second film wrapping rollers have identical structures. A transmission assembly is provided on one side of the U-shaped detection frame and the mobile frame to maintain transmission of the second film wrapping roller during movement. The device can effectively simulate conditions present in actual packaging and transportation processes, thereby supplementing actual test data. It also has a simple viscosity testing function, is highly practical, and is low-cost.

Description

Technical Field

[0001] The present invention relates to the technical field of film packaging characteristic detection, and in particular to a film winding packaging characteristic detection device. Background Art

[0002] Film wrapping, also known as stretch film packaging, is a form of packaging widely used in logistics, warehousing, food processing and other industries. Its main purpose is to secure and protect goods by stretching and wrapping special film materials to improve packaging quality and transportation safety. To ensure the quality of film wrapping, it is particularly important to perform characteristic testing on it.

[0003] Existing film wrapping property testing equipment is mostly a tensile testing machine. The tensile strength reflects the maximum load-bearing capacity of the material when stretched by an external force, while the elongation at break indicates the degree of deformation of the material during the stretching process. It is also used in conjunction with a stretch film adhesion tester to evaluate the adhesion of the film.

[0004] Both of the above-mentioned testing equipment quantify the parameters of film packaging. However, in the actual use of film packaging, if the packaged object has corners, the film packaging may be easily damaged during transportation. The tensile testing machine used for film property testing performs fixed stretching on both ends of a section of film. It cannot simulate the conditions existing in the actual packaging and transportation process, and the reference data is insufficient. In addition, film viscosity testing requires an additional viscosity tester, which is costly. Summary of the Invention

[0005] In order to solve the above problems, the present invention provides a film wrapping packaging characteristic detection device that can effectively simulate the conditions existing in the actual packaging and transportation process, thereby supplementing the actual detection data, and has a simple viscosity testing function, strong practicality and low cost.

[0006] In order to solve the above technical problems, the present invention provides a technical solution: a film wrapping packaging characteristic detection device, which includes a U-shaped detection frame, the open end of the U-shaped detection frame is slidably connected to a movable frame, the open end of the U-shaped detection frame is provided with a driving component that can control the movement of the movable frame, the U-shaped detection frame is provided with a rotatable first film wrapping roller, the movable frame is provided with a rotatable second film wrapping roller, the first film wrapping roller and the second film wrapping roller have the same structure, and one side of the U-shaped detection frame and the movable frame is provided with a transmission component that can keep the second film wrapping roller transmitting when it moves.

[0007] As an improvement, the first film wrapping roller and the second film wrapping roller include a hollow roller body, a symmetrically distributed first through groove is provided on the hollow roller body, a rectangular frame movable along the first through groove is provided in the hollow roller body, an adjustable film strength detection component is provided in the rectangular frame, and a first electric telescopic rod of the movable rectangular frame is provided between one end of the hollow roller body and the rectangular frame.

[0008] As an improvement, the rectangular frame includes a rectangular frame body that cooperates with the inside of the hollow roller body, the four ends of the rectangular frame body are provided with limit sliders that are slidably connected to the first through groove, the upper and lower ends of the rectangular frame body are provided with second through grooves located between the two limit sliders, the inner walls of the two second through grooves are slidably connected to the adjustable film strength detection component, and a second electric telescopic rod that can adjust the distance between the left and right ends of the adjustable film strength detection component is provided between the left and right inner walls of the rectangular frame body and the adjustable film strength detection component.

[0009] As an improvement, the adjustable film strength detection assembly includes a first rod body and a second rod body, the first rod body and the second rod body are hinged, a first sharp angle is provided at the hinge between the first rod body and the second rod body, and a second sharp angle is provided at the hinge between the second rod body and the first rod body. The distal ends of the first rod body and the second rod body are respectively rotatably connected to the second electric telescopic rod, and the two first rod bodies and the two second rod bodies are alternately surrounded by a quadrilateral.

[0010] As an improvement, the U-shaped detection frame includes a fixed plate body, two extended frames distributed in parallel are provided on one side of the fixed plate body, the open ends of the two extended frames are provided with cross frames, the cross frames are provided with through holes, one end of the fixed plate body is provided with a first single-axis frame, and one end of the cross frame is provided with a second single-axis frame on the same axis as the first single-axis frame.

[0011] As an improvement, the movable frame includes a movable plate body, both ends of which are provided with sliding grooves that are slidably connected to the extension frame body, the movable plate body is provided with a threaded hole that passes through the movable plate body and is on the same axis as the through hole, and one end of the movable plate body is provided with a third single-axis frame that is on the same axis as the first single-axis frame.

[0012] As an improvement, a threaded rod is rotatably connected between the through hole and the fixed plate, the threaded rod is threadedly connected to the threaded hole, a first torque measuring motor is provided on the cross frame, and the driving shaft of the first torque measuring motor is fixedly connected to the threaded rod.

[0013] As an improvement, the fixed plate body is provided with a first rotating frame for installing the hollow roller body, and the movable plate body is provided with a second rotating frame for installing the hollow roller body, the first single-axis frame is rotatably connected to the first bevel gear, the first rotating frame is rotatably connected to the second bevel gear meshing with the first bevel gear, the second bevel gear is fixedly connected to the adjacent hollow roller body, the third single-axis frame is rotatably connected to the third bevel gear, the second rotating frame is rotatably connected to the fourth bevel gear meshing with the third bevel gear, a limiting rotating shaft is provided between the third single-axis frame and the second single-axis frame, the limiting rotating shaft is fixedly connected to the first bevel gear, the limiting rotating shaft is slidably connected to the third bevel gear, and a second torque measuring motor is provided at one end of the first single-axis frame away from the limiting rotating shaft, and the driving shaft of the second torque measuring motor is fixedly connected to the limiting rotating shaft.

[0014] After adopting the above structure, the present invention has the following advantages:

[0015] 1. It can perform basic tensile tests, multi-length tensile tests, film viscosity tests, and actual simulation tests on film packaging. It has a simple structure but rich functions.

[0016] 2. Controlling the second electric telescopic rod to adjust the angle of the film strength detection component. The second electric telescopic rods on both sides can be controlled separately, allowing the angle between the first and second rods to show different deflection trends. The height of the first and second sharp corners can be controlled to form sharp parts of different angles and heights. The positions of the first and second sharp corners can be adjusted within a small range, thereby simulating the protruding angle of objects being wrapped and transported, which is more practical.

[0017] 3. The position of the movable plate is adjusted by the first torque measuring motor, and the two ends of the film are wound on the first wrapping roller and the second wrapping roller. The second torque measuring motor is started to rotate the first wrapping roller and the second wrapping roller in opposite directions until the film is greatly deformed or broken. The data obtained by the second torque measuring motor is used to measure the maximum load-bearing tension of the film within a certain length. The position of the movable plate is adjusted multiple times by the first torque measuring motor, and the maximum load-bearing tension of the film at multiple lengths is measured. Compared with the existing technology, it can provide more data reference. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is one of the structural schematic diagrams of a film wrapping packaging characteristic detection device of the present invention.

[0019] Figure 2 This is the second structural schematic diagram of a film wrapping packaging characteristic detection device of the present invention.

[0020] Figure 3 It is a cross-sectional view of a first film wrapping roller and a second film wrapping roller of a film wrapping packaging characteristic detection device of the present invention.

[0021] Figure 4 It is a structural schematic diagram of a rectangular frame of a film wrapping packaging characteristic detection device of the present invention.

[0022] Figure 5 It is a structural schematic diagram of an adjustable film strength detection component of a film wrapping packaging characteristic detection device of the present invention.

[0023] Figure 6 It is a structural schematic diagram of a U-shaped detection frame of a film wrapping packaging characteristic detection device of the present invention.

[0024] Figure 7 It is a structural schematic diagram of a mobile frame of a film wrapping packaging characteristic detection device of the present invention.

[0025] Figure 8 This is one of the partial structural schematic diagrams of the transmission component of a film wrapping packaging characteristic detection device of the present invention.

[0026] Figure 9 This is the second partial structural schematic diagram of the transmission component of a film wrapping packaging characteristic detection device of the present invention.

[0027] Figure 10 It is a structural schematic diagram of a drive component of a film wrapping packaging characteristic detection device of the present invention.

[0028] As shown in the figure: 1. U-shaped detection frame; 101. Fixed plate; 102. Extension frame; 103. Horizontal frame; 104. First rotating frame; 105. Second single-axis frame; 106. First single-axis frame; 108. Through hole; 2. Mobile frame; 201. Mobile plate; 202. Slide; 203. Third single-axis frame; 204. Second rotating frame; 205. Threaded hole; 3. First wrapping roller; 301. Hollow roller; 302. Rectangular frame; 3021. Rectangular frame; 3022. Second through slot; 3023. Second electric telescopic rod; 3024. , limit slider; 303, first electric telescopic rod; 304, adjustable film strength detection component; 3041, first rod body; 3042, second rod body; 3043, first sharp corner; 3044, second sharp corner; 305, first through groove; 4, second film wrapping roller; 5, drive assembly; 501, threaded rod; 502, first torque measuring motor; 6, transmission assembly; 601, limit shaft; 602, first bevel gear; 603, second torque measuring motor; 604, second bevel gear; 605, third bevel gear; 606, fourth bevel gear. DETAILED DESCRIPTION

[0029] The present invention will be described in further detail below with reference to the accompanying drawings.

[0030] Combined with attachment Figure 1 , Attachment Figure 2 , Attachment Figure 6 , Attachment Figure 7 and attached Figure 10 :

[0031] A film wrapping packaging characteristic detection device, which includes a U-shaped detection frame 1, the open end of the U-shaped detection frame 1 is slidably connected to a mobile frame 2, the open end of the U-shaped detection frame 1 is provided with a drive assembly 5 that can control the movement of the mobile frame 2, the U-shaped detection frame 1 includes a fixed plate body 101, one side of the fixed plate body 101 is provided with two parallel extension frames 102, the open ends of the two extension frames 102 are provided with a cross frame 103, the cross frame 103 is provided with a through hole 108, one end of the fixed plate body 101 is provided with a first single-axis frame 106, and one end of the cross frame 103 is provided with a second single-axis frame 105 that is coaxial with the first single-axis frame 106;

[0032] The movable frame 2 includes a movable plate 201, with sliding grooves 202 provided at both ends of the movable plate 201 for sliding connection with the extension frame 102, a threaded hole 205 provided in the movable plate 201 that passes through the movable plate 201 and is coaxial with the through hole 108, and a third single-axis frame 203 provided at one end of the movable plate 201 and coaxial with the first single-axis frame 106;

[0033] A threaded rod 501 is rotatably connected between the through hole 108 and the fixed plate 101, and the threaded rod 501 is threadedly connected to the threaded hole 205. A first torque measuring motor 502 is provided on the horizontal frame 103, and a driving shaft of the first torque measuring motor 502 is fixedly connected to the threaded rod 501;

[0034] Through the above structure, after the first torque measurement motor 502 is started, it can drive the movable plate 201 to move between the two extension frames 102, providing basic conditions for film characteristic testing.

[0035] Combined with attachment Figure 1 , Attachment Figure 3 , Attachment Figure 4 and attached Figure 5 :

[0036] The U-shaped detection frame 1 is provided with a rotatable first film wrapping roller 3, and the movable frame 2 is provided with a rotatable second film wrapping roller 4. The first film wrapping roller 3 and the second film wrapping roller 4 have the same structure. The first film wrapping roller 3 and the second film wrapping roller 4 include a hollow roller body 301, and the hollow roller body 301 is provided with symmetrically distributed first through grooves 305. A rectangular frame 302 that can move along the first through grooves 305 is provided in the hollow roller body 301, and an adjustable film strength detection component 304 is provided in the rectangular frame 302. A first electric telescopic rod 303 that can move the rectangular frame 302 is provided between one end of the hollow roller body 301 and the rectangular frame 302;

[0037] The rectangular frame 302 includes a rectangular frame body 3021 that cooperates with the interior of the hollow roller body 301. The four ends of the rectangular frame body 3021 are provided with limit sliders 3024 that are slidably connected to the first through slot 305. The upper and lower ends of the rectangular frame body 3021 are provided with second through slots 3022 located between the two limit sliders 3024. The inner walls of the two second through slots 3022 are slidably connected to the adjustable film strength detection assembly 304. A second electric telescopic rod 3023 for adjusting the distance between the left and right ends of the adjustable film strength detection assembly 304 is provided between the left and right inner walls of the rectangular frame body 3021 and the adjustable film strength detection assembly 304.

[0038] The adjustable film strength detection assembly 304 includes a first rod 3041 and a second rod 3042, which are hinged to each other. A first sharp corner 3043 is provided at the hinge between the first rod 3041 and the second rod 3042, and a second sharp corner 3044 is provided at the hinge between the second rod 3042 and the first rod 3041. The distal ends of the first rod 3041 and the second rod 3042 are respectively rotatably connected to the second electric telescopic rod 3023. The two first rods 3041 and the two second rods 3042 are alternately surrounded by a quadrilateral.

[0039] Through the above structure, the second electric telescopic rod 3023 is controlled to control the angle of the adjustable film strength detection component 304. The adjustable film strength detection component 304 can be divided into two groups, upper and lower. Figure 4 and attached Figure 5 The second electric telescopic rods 3023 on both sides can be controlled separately. This is a prior art and is not described in detail here. The angle between the first rod body 3041 and the second rod body 3042 can be adjusted to different deflection trends, and the height of the first sharp corner 3043 and the second sharp corner 3044 can be controlled. The first sharp corner 3043 and the second sharp corner 3044 are exposed from the second through slot 3022 and the first through slot 305, forming sharp portions of different angles and heights, and the positions of the first sharp corner 3043 and the second sharp corner 3044 can be adjusted within a small range, thereby simulating the angles of objects being wrapped and transported;

[0040] By controlling the length of the first electric telescopic rod 303, the position of the rectangular frame 302 within the hollow roller body 301 is controlled, thereby adjusting the positions of the first sharp corner 3043 and the second sharp corner 3044 over a wide range. This can be used to detect data on the corners of objects being wrapped and transported at different positions within the film packaging. Furthermore, the reciprocating motion of the first electric telescopic rod 303 can also be used to simulate wear resistance testing of objects moving within the film packaging during transportation due to insufficient wrapping adhesion.

[0041] The hollow roller 301 can be used to wrap or attach a film, and has a more practical simulation compared to the fixture used in the tensile testing machine in the prior art.

[0042] Combined with attachment Figure 1 , Attachment Figure 7 , Attachment Figure 8 , Attachment Figure 9 and attached Figure 10 :

[0043] A transmission assembly 6 is provided on one side of the U-shaped detection frame 1 and the movable frame 2 so that the second film wrapping roller 4 can maintain transmission when moving. A first rotating frame 104 for mounting the hollow roller body 301 is provided on the fixed plate 101, and a second rotating frame 204 for mounting the hollow roller body 301 is provided on the movable plate 201. A first bevel gear 602 is rotatably connected to the first single-axis frame 106, and a second bevel gear 604 meshing with the first bevel gear 602 is rotatably connected to the first rotating frame 104. The second bevel gear 604 is fixedly connected to the adjacent hollow roller body 301. The third single-axis frame 203 is rotatably connected to a third bevel gear 605, and the second rotating frame 204 is rotatably connected to a fourth bevel gear 606 that meshes with the third bevel gear 605. A limiting rotating shaft 601 is provided between the third single-axis frame 203 and the second single-axis frame 105. The limiting rotating shaft 601 is fixedly connected to the first bevel gear 602, and the limiting rotating shaft 601 is slidably connected to the third bevel gear 605. A second torque measuring motor 603 is provided at one end of the first single-axis frame 106 away from the limiting rotating shaft 601, and the driving shaft of the second torque measuring motor 603 is fixedly connected to the limiting rotating shaft 601;

[0044] Start the second torque measurement motor 603 to drive the limiting shaft 601 and the first bevel gear 602 to rotate clockwise. Figure 8 The first bevel gear 602 drives the first film wrapping roller 3 to rotate counterclockwise through the second bevel gear 604, and the limiting shaft 601 rotates clockwise while driving the third bevel gear 605 to rotate clockwise. Figure 8 , so that the fourth bevel gear 606 drives the second film wrapping roller 4 to rotate clockwise, thereby causing the first film wrapping roller 3 and the second film wrapping roller 4 to rotate in opposite directions. When the film is attached to the first film wrapping roller 3 and the second film wrapping roller 4, the data obtained by the second torque measuring motor 603 is converted. This is a prior art and is not described in detail here, thereby quantifying the tension that the film can withstand between the first film wrapping roller 3 and the second film wrapping roller 4. By adjusting the position of the movable plate 201, the tension that the film can withstand at a certain length can be detected.

[0045] Example 1: A basic tensile test is performed by controlling the second electric telescopic rod 3023 to retract the adjustable film strength detection assembly 304 into the first film wrapping roller 3 and the second film wrapping roller 4, preventing the adjustable film strength detection assembly 304 from being exposed. The first torque measuring motor 502 is used to adjust the position of the movable plate 201, and the ends of the film are wound around the first film wrapping roller 3 and the second film wrapping roller 4. The second torque measuring motor 603 is then started to rotate the first film wrapping roller 3 and the second film wrapping roller 4 in opposite directions until the film is significantly deformed or breaks. The maximum load-bearing tensile force of the film within a specific length is measured using data obtained by the second torque measuring motor 603.

[0046] The position of the movable plate 201 is adjusted multiple times by the first torque measurement motor 502 to measure the maximum load-bearing tension of the film at multiple lengths.

[0047] Example 2: When performing a film viscosity test, the second electric telescopic rod 3023 is controlled to retract the adjustable film strength detection component 304 into the first film wrapping roller 3 and the second film wrapping roller 4 without exposing the adjustable film strength detection component 304. The position of the movable plate 201 is adjusted by the first torque measuring motor 502, and one end of the film is wound around the first film wrapping roller 3 and the other end is attached to the second film wrapping roller 4. The second torque measuring motor 603 is started to rotate the first film wrapping roller 3 and the second film wrapping roller 4 in opposite directions until one end of the film located on the second film wrapping roller 4 is separated from the second film wrapping roller 4. The adhesion viscosity of the film is measured using the data obtained by the second torque measuring motor 603.

[0048] Example 3: During an actual simulation test, the second electric telescopic rod 3023 is controlled to expose the adjustable film strength detection assembly 304 from the first film wrapping roller 3 and the second film wrapping roller 4. The angle of the desired measurement protrusion is adjusted. The position of the desired measurement protrusion is adjusted by the first electric telescopic rod 303, and the two ends of the film are wrapped around the first film wrapping roller 3 and the second film wrapping roller 4. The second torque measurement motor 603 is started to rotate the first film wrapping roller 3 and the second film wrapping roller 4 in opposite directions, so that the film wraps around the first film wrapping roller 3 and the second film wrapping roller 4 and the adjustable film strength detection assembly 304 until the film is significantly deformed or breaks. The data obtained by the second torque measurement motor 603 is used to measure the maximum tensile load of the film when the protrusion angle is present.

[0049] In this process, by controlling the reciprocating extension and retraction of the first electric telescopic rod 303, the scene of an object shaking in the film packaging during actual packaging transportation can be simulated, thereby performing a comprehensive test on the wear resistance and adhesion of the film packaging.

[0050] The above description of the present invention and its embodiments is non-limiting, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above description and, without departing from the purpose of the present invention, designs a structure and embodiment similar to the technical solution without creatively designing, they shall fall within the scope of protection of the present invention.

Claims

1. A film wrapping packaging characteristic detection device, comprising a U-shaped detection frame (1), wherein an open end of the U-shaped detection frame (1) is slidably connected to a movable frame (2), and a driving component (5) is provided at the open end of the U-shaped detection frame (1) for controlling the movement of the movable frame (2), characterized in that: The U-shaped detection frame (1) is provided with a rotatable first film-wrapping roller (3), and the movable frame (2) is provided with a rotatable second film-wrapping roller (4), the first film-wrapping roller (3) and the second film-wrapping roller (4) have the same structure, and a transmission component (6) is provided on one side of the U-shaped detection frame (1) and the movable frame (2) so as to enable the second film-wrapping roller (4) to maintain transmission when moving; The first film wrapping roller (3) and the second film wrapping roller (4) comprise a hollow roller body (301), the hollow roller body (301) being provided with symmetrically distributed first through slots (305), a rectangular frame (302) movable along the first through slots (305) being provided in the hollow roller body (301), an adjustable film strength detection component (304) being provided in the rectangular frame (302), and a first electric telescopic rod (303) movable to the rectangular frame (302) being provided between one end of the hollow roller body (301) and the rectangular frame (302); The rectangular frame (302) comprises a rectangular frame body (3021) matched with the interior of the hollow roller body (301); the four ends of the rectangular frame body (3021) are provided with limit sliders (3024) slidably connected to the first through slot (305); the upper and lower ends of the rectangular frame body (3021) are provided with second through slots (3022) located between the two limit sliders (3024); the inner walls of the two second through slots (3022) are slidably connected to the adjustable film strength detection component (304); and a second electric telescopic rod (3023) is provided between the inner walls of the left and right ends of the rectangular frame body (3021) and the adjustable film strength detection component (304) to adjust the distance between the left and right ends of the adjustable film strength detection component (304); The adjustable film strength detection assembly (304) comprises a first rod (3041) and a second rod (3042), wherein the first rod (3041) and the second rod (3042) are hinged, a first sharp corner (3043) is provided at the hinge between the first rod (3041) and the second rod (3042), and a second sharp corner (3044) is provided at the hinge between the second rod (3042) and the first rod (3041), the distal ends of the first rod (3041) and the second rod (3042) are respectively rotatably connected to the second electric telescopic rod (3023), and the two first rods (3041) and the two second rods (3042) are alternately arranged to form a quadrilateral.

2. The film wrapping packaging characteristic detection device according to claim 1, characterized in that: The U-shaped detection frame (1) comprises a fixed plate body (101), two parallel extension frames (102) are provided on one side of the fixed plate body (101), a cross frame (103) is provided at the open ends of the two extension frames (102), a through hole (108) is provided on the cross frame (103), a first single-axis frame (106) is provided at one end of the fixed plate body (101), and a second single-axis frame (105) is provided at one end of the cross frame (103) and is coaxial with the first single-axis frame (106).

3. The film wrapping packaging characteristic detection device according to claim 2, characterized in that: The movable frame (2) comprises a movable plate body (201), two ends of the movable plate body (201) are provided with sliding grooves (202) slidably connected to the extension frame body (102), a threaded hole (205) penetrating the movable plate body (201) and coaxial with the through hole (108) is provided in the movable plate body (201), and one end of the movable plate body (201) is provided with a third single-axis frame (203) coaxial with the first single-axis frame (106).

4. The film wrapping packaging characteristic detection device according to claim 3, characterized in that: A threaded rod (501) is rotatably connected between the through hole (108) and the fixed plate body (101), and the threaded rod (501) is threadedly connected to the threaded hole (205). A first torque measuring motor (502) is provided on the cross frame (103), and a driving shaft of the first torque measuring motor (502) is fixedly connected to the threaded rod (501).

5. The film wrapping packaging characteristic detection device according to claim 4, characterized in that: The fixed plate (101) is provided with a first rotating frame (104) for mounting the hollow roller (301), the movable plate (201) is provided with a second rotating frame (204) for mounting the hollow roller (301), the first single-axis frame (106) is rotatably connected to a first bevel gear (602), the first rotating frame (104) is rotatably connected to a second bevel gear (604) meshing with the first bevel gear (602), the second bevel gear (604) is fixedly connected to the adjacent hollow roller (301), the third single-axis frame (203) is rotatably connected to a third bevel gear ( 605), a fourth bevel gear (606) meshing with the third bevel gear (605) is rotatably connected to the second rotating frame (204), a limiting rotating shaft (601) is provided between the third single-axis frame (203) and the second single-axis frame (105), the limiting rotating shaft (601) is fixedly connected to the first bevel gear (602), the limiting rotating shaft (601) is slidably connected to the third bevel gear (605), a second torque measuring motor (603) is provided at one end of the first single-axis frame (106) away from the limiting rotating shaft (601), and a driving shaft of the second torque measuring motor (603) is fixedly connected to the limiting rotating shaft (601).

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