Carton compression resistance testing machine with positioning function

Abstract

The utility model discloses a carton compression test machine with a positioning function, which comprises a base, a lifting frame mounted on the base, a graduated scale and a height adjusting structure mounted on one side of the lifting frame, a high-speed camera mounted on the height adjusting structure, a lifting beam mounted on the inner side of the lifting frame, and a mounting frame mounted at the bottom of the lifting beam. An upper pressing plate is arranged below the installation frame, a force sensor is installed between the upper pressing plate and the lifting beam, a cushion block is installed on the right side of the upper pressing plate, a pointer is installed on the cushion block, and a laser transmitter is embedded in the center of the bottom of the upper pressing plate. According to the utility model, the intersection point of diagonal lines of the carton can be aligned with the light emitted by the laser emitter through the laser emitter, so that the carton can directly face the upper pressing plate, and meanwhile, the deformation process of the carton and the moving process of the pointer can be accurately recorded through the high-speed camera; and when the carton starts to deform can be visually seen, so that the pressure bearing range of the carton can be deduced.

Description

Technical Field

[0001] The utility model relates to the technical field of carton compression testing machines, and particularly relates to a carton compression testing machine with a positioning function. Background Art

[0002] A carton compression testing machine is a testing machine specifically used for testing the compression resistance of cartons, and is applicable to the pressure resistance, deformation, and stacking tests of packaging components such as corrugated cartons and honeycomb board boxes. When using a carton compression testing machine to test a carton, in order to ensure the accuracy of the test, the carton usually needs to be placed directly below the upper pressure plate, and the center of the carton should correspond to the pressure application center of the upper pressure plate to more accurately test the compression resistance of the carton. However, the existing carton compression testing machines cannot position the carton during use, and the tester can only place the carton at an approximate position on the lower pressure plate according to experience or by visual inspection for testing, which will affect the accuracy of carton testing to a certain extent; and when the existing carton compression testing machines are in use, the tester will first roughly estimate the bearing value of the carton, and the testing machine will gradually apply pressure according to the settings until it reaches the maximum bearing value. However, during the pressure application process, the carton may deform in advance without being able to withstand the set pressure value. At this time, the testing machine cannot accurately record when the carton starts to deform and the deformation process of the carton, but the tester needs to gradually reduce the set bearing value and conduct multiple tests to determine the maximum bearing value of the carton, and the testing process is relatively cumbersome. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a carton compression testing machine with a positioning function for the deficiencies of the existing technology to solve the problems raised in the background art.

[0004] To achieve this purpose, the utility model adopts the following technical solutions:

[0005] A carton compression testing machine with a positioning function includes a base, on which a lifting frame is installed. A scale and a height adjustment structure are installed on the right column of the lifting frame, and a high-speed camera is installed on the height adjustment structure. A lifting beam is installed between two lifting platforms inside the lifting frame. An installation frame is installed at the bottom of the lifting beam. Four guide rods distributed in a rectangular array are slidably installed on the installation frame. A limit ring is installed at the top of the guide rod, and a balance spring is sleeved on the guide rod. The balance spring abuts between the limit ring and the installation frame;

[0006] A lower pressure plate is arranged below the installation frame. The bottom ends of the four guide rods are fixedly installed on the top of the lower pressure plate. A force sensor is installed between the lower pressure plate and the lifting beam. A cushion block is installed on the right side of the lower pressure plate, and a pointer is installed on the cushion block. A laser emitter is inlaid at the bottom of the lower pressure plate, and the laser emitter is located at the central position of the bottom of the lower pressure plate.

[0007] As a preferred solution of the carton compressive strength testing machine with a positioning function, *the height adjustment structure includes a chute, a lead screw, a slider and a motor. The chute is vertically installed on the right column of the lifting frame. The lead screw is rotatably installed between the upper and lower inner walls of the chute. The slider is slidably installed in the chute, and a threaded hole matching the lead screw is provided on the slider. The high-speed camera is installed on the slider, and the motor is installed on the top of the chute. The output shaft of the motor is connected to the main shaft of the lead screw.

[0008] As a preferred solution of the carton compressive strength testing machine with a positioning function, *a lower pressing plate is installed on the base, and the lower pressing plate is directly below the upper pressing plate.

[0009] As a preferred solution of the carton compressive strength testing machine with a positioning function, *a control cabinet is installed on the left column of the lifting frame, and a control panel is installed on the control cabinet.

[0010] As a preferred solution of the carton compressive strength testing machine with a positioning function, *the tip of the pointer points to the scale, and the tip of the pointer is on the same horizontal plane as the bottom surface of the upper pressing plate.

[0011] Advantages of the present utility model:

[0012] (1) In the carton compressive strength testing machine of the present utility model, a laser emitter is arranged at the central position of the bottom of the upper pressing plate. Before the test, draw the diagonal line on the carton. When placing the carton, make the light emitted by the laser emitter align with the intersection point of the diagonal line on the carton, so that the carton can be positioned correctly opposite the upper pressing plate. The present utility model can accurately find the center point of the carton through laser positioning, ensuring uniform stress on the carton during the pressure test, thereby improving the accuracy of carton testing;

[0013] (2) The carton compressive strength testing machine of the present utility model is provided with a high-speed camera, which can accurately record the deformation process of the carton and the movement process of the pointer. By observing the movement change of the pointer on the scale, it can be directly seen when the carton starts to deform, thereby inferring the maximum bearing range of the carton. At the same time, the deformation height of the carton under this pressure can also be recorded through the front and back scale changes. Description of the drawings

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required to be used in the embodiments of the present utility model will be briefly introduced below. Obviously, the following described drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0015] Figure 1 It is a schematic diagram of the overall structure of the carton compressive strength testing machine with a positioning function described in the present utility model.

[0016] Figure 2 is Figure 1 An enlarged schematic diagram of the structure of part A in it.

[0017] Figure 3 It is a front sectional view structure schematic diagram of the upper pressure plate described in the present utility model.

[0018] Figure 4 It is a schematic diagram of the structure of the height adjustment structure described in the present utility model.

[0019] In the figure:

[0020] 1. Base; 2. Lifting frame; 3. Scale; 4. Height adjustment structure; 41. Slide groove; 42. Lead screw; 43. Slide block; 44. Motor; 5. High-speed camera; 6. Lifting beam; 7. Mounting frame; 8. Guide rod; 9. Balance spring; 10. Upper pressure plate; 11. Force sensor; 12. Spacer block; 13. Pointer; 14. Laser emitter; 15. Lower pressure plate; 16. Control cabinet; 17. Control panel. Specific embodiments

[0021] The technical solution of the present utility model will be further described below in conjunction with the accompanying drawings and through specific embodiments.

[0022] Among them, the accompanying drawings are only for illustrative purposes, showing only schematic diagrams, rather than physical diagrams, and should not be construed as a limitation of this patent; in order to better illustrate the embodiments of the present utility model, some components in the accompanying drawings will be omitted, enlarged or reduced, and do not represent the dimensions of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the accompanying drawings may be omitted.

[0023] In the accompanying drawings of the embodiments of the present utility model, the same or similar reference numerals correspond to the same or similar components; in the description of the present utility model, it should be understood that if terms such as "upper", "lower", "left", "right", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model 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. Therefore, the terms describing the positional relationship in the accompanying drawings are only for illustrative purposes and should not be construed as a limitation of this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0024] In the description of the present utility model, unless otherwise clearly specified and defined, if terms such as "connection" are used to indicate the connection relationship between components, such terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0025] As Figure 1 and Figure 2 shown, the present utility model provides a carton compressive strength testing machine with a positioning function, including a base 1. An elevating frame 2 is installed on the base 1. A control cabinet 16 is installed on the left column of the elevating frame 2. A control panel 17 is installed on the control cabinet 16. A scale 3 and a height adjusting structure 4 are installed on the right column of the elevating frame 2. A high-speed camera 5 is installed on the height adjusting structure 4. An elevating beam 6 is installed between two elevating platforms inside the elevating frame 2. The elevating frame 2 is an electric elevating frame, which is connected and controlled by the control cabinet 16 and is used to control the lifting of the elevating beam 6. An installation frame 7 is installed at the bottom of the elevating beam 6. Four guide rods 8 distributed in a rectangular array are slidably installed on the installation frame 7. A limit ring is installed at the top of the guide rod 8. A balance spring 9 is sleeved on the guide rod 8, and the balance spring 9 abuts between the limit ring and the installation frame 7.

[0026] A top pressing plate 10 is arranged below the installation frame 7. The bottom ends of the four guide rods 8 are fixedly installed on the top of the top pressing plate 10. A force sensor 11 is installed between the top pressing plate 10 and the elevating beam 6 for monitoring the pressure applied by the top pressing plate 10 during the experiment. A cushion block 12 is installed on the right side of the top pressing plate 10. A pointer 13 is installed on the cushion block 12. The tip of the pointer 13 points to the scale 3, and the tip of the pointer 13 and the bottom surface of the top pressing plate 10 are on the same horizontal plane. When the top pressing plate 10 moves, it will drive the pointer 13 to move together. When the pointer 13 moves, it will point to different scales on the scale 3. By observing the change of the scale pointed by the pointer 13, the displacement change of the top pressing plate 10 can be directly observed, so as to judge when the carton starts to deform.

[0027] As Figure 3 shown, a laser emitter 14 is inlaid at the bottom of the top pressing plate 10, and the laser emitter 14 is located at the central position of the bottom of the top pressing plate 10. A bottom pressing plate 15 is installed on the base 1, and the bottom pressing plate 15 is directly below the top pressing plate 10. Before the test, two diagonal lines are drawn on the upper surface of the carton, and the intersection point of the diagonal lines is the center of the carton. By aligning the light emitted by the laser emitter 14 with the intersection point of the diagonal lines on the carton, the carton can be made to face the top pressing plate 10 directly.

[0028] AsFigure 4 As shown, the height adjustment structure 4 includes a chute 41, a lead screw 42, a slider 43, and a motor 44. The chute 41 is vertically installed on the right column of the lifting frame 2. The lead screw 42 is rotatably installed between the upper and lower inner walls of the chute 41. The slider 43 is slidably installed in the chute 41, and a threaded hole matching the lead screw 42 is provided on the slider 43. The high-speed camera 5 is installed on the slider 43. The motor 44 is installed on the top of the chute 41, and the output shaft of the motor 44 is connected to the main shaft of the lead screw 42. The motor 44 can drive the lead screw 42 to rotate, and then through the cooperation of the lead screw 42 and the threaded hole on the slider 43, the slider 43 is controlled to drive the high-speed camera 5 to move up and down, so as to adjust the position of the high-speed camera 5. To prevent the slider 43 from sliding down due to gravity, the motor 44 can use a self-locking motor, or the lead screw 42 can use a trapezoidal lead screw.

[0029] The working principle and usage process of the present utility model:

[0030] When the carton compression tester with positioning function is in use, before the test, first draw two diagonal lines on the upper surface of the carton, and the intersection point of the diagonal lines is the center of the carton. Turn on the laser emitter 14, place the carton on the lower pressing plate 15, and move the position of the carton so that the light emitted by the laser emitter 14 is aligned with the intersection point of the diagonal lines on the carton. At this time, the carton is directly facing the upper pressing plate 10, so as to ensure that the carton is evenly stressed during the pressurization process, thereby improving the accuracy of the carton test; at the same time, turn on the high-speed camera 5, and adjust the height of the high-speed camera 5 according to the height of the tested carton. Start the motor 44 to drive the lead screw 42 to rotate, and then through the cooperation of the lead screw 42 and the threaded hole on the slider 43, control the slider 43 to drive the high-speed camera 5 to move up and down. After the height of the high-speed camera 5 is adjusted to the appropriate height, turn off the motor 44; then start the lifting frame 2, control the lifting beam 6 to drive the upper pressing plate 10 to press down. When the upper pressing plate 10 presses on the carton, the position of the upper pressing plate 10 will remain relatively stationary under the support of the carton. At this moment, the pointer 13 stops pointing to a certain scale on the scale 3. Under the continuous pressurization of the upper pressing plate 10, when the carton cannot withstand the pressure and begins to deform, the upper pressing plate 10 will continue to move downward, and at the same time the pointer 13 will also start to move downward. The high-speed camera 5 will record the deformation process of the carton and the movement of the pointer 13. The force sensor 11 will record the pressure applied by the upper pressing plate 10 during the test process. The tester can intuitively see when the carton starts to deform by observing the movement change of the pointer 13 on the scale 3, thereby inferring the maximum bearing range of the carton. At the same time, the deformation height of the carton under this pressure can also be recorded through the change of the front and back scales.

[0031] It should be noted that the above specific embodiments are only the preferred embodiments of the present utility model and the technical principles applied. Those skilled in the art should understand that various modifications, equivalent replacements, changes, etc. can be made to the present utility model. However, as long as these transformations do not deviate from the spirit of the present utility model, they should be within the protection scope of the present utility model. In addition, some terms used in the specification and claims of this application are not restrictive, but are only for the convenience of description.

Claims

1. A carton compression testing machine with positioning function, characterized in that: The invention comprises a base (1), a lifting frame (2) is installed on the base (1), a scale (3) and a height adjustment structure (4) are installed on the right column of the lifting frame (2), a high-speed camera (5) is installed on the height adjustment structure (4), a lifting beam (6) is installed between two lifting platforms inside the lifting frame (2), a mounting frame (7) is installed at the bottom of the lifting beam (6), four guide rods (8) distributed in a rectangular array are slidably installed on the mounting frame (7), a limit ring is installed at the top end of the guide rod (8), a balance spring (9) is sleeved on the guide rod (8), and the balance spring (9) is pressed between the limit ring and the mounting frame (7); An upper pressing plate (10) is arranged below the mounting frame (7), the bottom ends of the four guide rods (8) are fixedly mounted on the top of the upper pressing plate (10), a force sensor (11) is installed between the upper pressing plate (10) and the lifting beam (6), a cushion block (12) is installed on the right side of the upper pressing plate (10), a pointer (13) is installed on the cushion block (12), and a laser emitter (14) is embedded at the bottom of the upper pressing plate (10), and the laser emitter (14) is located at the central position of the bottom of the upper pressing plate (10).

2. The carton compression testing machine with positioning function according to claim 1, characterized in that: The height adjustment structure (4) comprises a slide groove (41), a screw rod (42), a slider (43) and a motor (44); the slide groove (41) is vertically mounted on the right column of the lifting frame (2); the screw rod (42) is rotatably mounted between the upper and lower inner walls of the slide groove (41); the slider (43) is slidably mounted in the slide groove (41); and a screw hole matching the screw rod (42) is provided on the slider (43); the high-speed camera (5) is mounted on the slider (43); the motor (44) is mounted on the top of the slide groove (41); and the output shaft of the motor (44) is connected to the main shaft of the screw rod (42).

3. The carton compression testing machine with positioning function according to claim 1, characterized in that: A lower pressing plate (15) is installed on the base (1), and the lower pressing plate (15) is located directly below the upper pressing plate (10).

4. The carton compression testing machine with positioning function according to claim 1, characterized in that: A control cabinet (16) is installed on the left column of the lifting frame (2), and a control panel (17) is installed on the control cabinet (16).

5. The carton compression testing machine with positioning function according to claim 1, characterized in that: The needle tip of the pointer (13) points to the scale (3), and the needle tip of the pointer (13) and the bottom surface of the upper pressing plate (10) are on the same horizontal plane.

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