Vibration testing device for plate-free printing carton

Abstract

The utility model relates to the technical field of packaging carton testing equipment, in particular to a vibration testing device for a plate-free printing carton. Comprising a rack, a driving piece installed on the lower portion of the rack, a rotary table driven by the driving piece to rotate, a plurality of amplitude adjusting pieces arranged on the rotary table, a supporting piece arranged on the upper portion of the rack and connected with the upper end face of the rotary table in a sliding mode, and a tray supported by the supporting piece and located on the upper side of the rack. The multiple amplitude adjusting pieces are arranged in the sliding stroke of the supporting piece. The amplitude adjusting part comprises a fixed plate, an adjusting plate, a rotating shaft and an adjusting assembly, the fixed plate is fixedly arranged, the head end of the fixed plate is hinged to the head end of the adjusting plate through the rotating shaft, and the adjusting assembly is arranged between the fixed plate and the adjusting plate and used for adjusting the included angle between the fixed plate and the adjusting plate; according to the utility model, the anti-vibration capability of the carton under a plurality of different road conditions can be tested, and the vibration test performance is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of packaging carton testing equipment, specifically to a vibration testing device for plateless printed cartons. Background Technology

[0002] In actual logistics transportation, cardboard boxes are subjected to repeated vibrations. A testing instrument is needed to simulate these vibrations (oscillations) during logistics. By observing the appearance and testing the performance of the cardboard boxes after the oscillation test, the effectiveness of the boxes can be predicted, thereby effectively reducing accidents such as box collapse and damage during transportation, improving the protective performance of the boxes, and enhancing the applicability of the products. For road transportation, the common vibration amplitude is between 0.5 and 5 mm, and the vibration direction is mainly vertical. Existing technology, such as the patent with publication number CN219957214U, discloses a testing instrument that simulates the vibration of transported cardboard boxes. This instrument achieves the testing purpose by placing the cardboard box on a placement frame driven by a vibration motor. However, this testing instrument has the problem of a single amplitude and cannot perform vibration tests on cardboard boxes under different road conditions, indicating that its testing performance needs improvement. Utility Model Content

[0003] To address the shortcomings of existing technologies, the purpose of this invention is to provide a vibration testing device for plateless printed cartons, which can test the vibration resistance of cartons under various road conditions and improve vibration testing performance.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a vibration testing device for plateless printed cartons, comprising a frame and a drive component installed at the lower part of the frame, a turntable that rotates under the drive component, multiple amplitude adjustment components disposed on the turntable, a support component disposed at the upper part of the frame and slidably connected to the upper surface of the turntable, and a tray supported by the support component and located on the upper side of the frame, wherein the multiple amplitude adjustment components are all disposed within the sliding stroke of the support component; the amplitude adjustment component includes a fixed plate, an adjustment plate, a rotating shaft, and an adjustment assembly, the fixed plate is fixedly disposed, the first end of the fixed plate is hinged to the first end of the adjustment plate through the rotating shaft, and the adjustment assembly is disposed between the fixed plate and the adjustment plate for adjusting the included angle between the fixed plate and the adjustment plate.

[0005] Preferably, the adjusting assembly includes a screw and an adjusting cylinder; the lower end of the screw is fixedly connected to a fixed plate, and the adjusting cylinder is sleeved on the top of the screw and threadedly connected to the screw; the top of the adjusting cylinder is fixedly connected to the lower end of the adjusting plate.

[0006] Preferably, the lower end of the adjusting plate has an insertion hole corresponding to the position of the adjusting cylinder; a rubber ring is provided in the insertion hole; the adjusting cylinder is tightly fitted with the adjusting plate through the rubber ring.

[0007] Preferably, the adjustment component includes a slider; the slider is slidably disposed on the fixed plate.

[0008] Preferably, the fixing plate is provided with a scale indicating the amplitude.

[0009] Preferably, the turntable has grooves matching the number of amplitude adjustment components; the amplitude adjustment components are located in the grooves; the depth of the grooves is equal to the sum of the thicknesses of the fixed plate and the adjustment plate.

[0010] Preferably, the support includes casters, a connecting rod, and a suction cup. The casters are located at the lower end of the connecting rod and are slidably connected to the turntable. The suction cup is located at the top end of the connecting rod. The connecting rod is connected to the tray via the suction cup.

[0011] Preferably, the number of amplitude adjusting members is the same as the number of supporting members.

[0012] Preferably, it also includes multiple support columns; the multiple support columns are mounted on the frame and located on the lower side of the turntable; the top ends of the multiple support columns are slidably connected to the lower end of the turntable.

[0013] Preferably, the support column includes a support column body, a ball seat, and a ball bearing. The support column body is fixed on the frame. The ball bearing is movably disposed at the top of the support column body via the ball seat. The ball bearing is slidably connected to the lower end face of the turntable.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: by setting an amplitude adjustment component on the rotating turntable, the amplitude adjustment component includes a fixed plate and an adjustment plate whose included angle is adjusted by an adjustment component, and a support component for supporting the tray is slidably connected to the adjustment plate and the turntable, so that the amplitude can be adjusted by adjusting the included angle between the fixed plate and the adjustment plate during testing, thereby expanding the testing capability of this testing device. At the same time, the adjustment process of amplitude and frequency is convenient and quick, and the testing efficiency is greatly improved. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the testing device of this utility model;

[0016] Figure 2 This is a schematic diagram of the left side of the testing device of this utility model;

[0017] Figure 3 This is a schematic diagram of the turntable structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the amplitude adjustment component of this utility model;

[0019] Figure 5 This is a schematic diagram of the support column structure of this utility model.

[0020] In the diagram: 1. Frame, 11. Base plate, 12. Bracket, 13. Top plate, 2. Drive unit, 3. Turntable, 31. Groove, 4. Amplitude adjustment unit, 41. Fixing plate, 42. Adjustment plate, 43. Shaft, 44. Screw, 45. Adjustment cylinder, 421. Insertion hole, 5. Support unit, 51. Caster wheel, 52. Connecting rod, 53. Suction cup, 6. Tray, 7. Support column, 71. Support column body, 72. Ball seat, 73. Ball bearing. Detailed Implementation

[0021] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings, so that those skilled in the art can more clearly understand how to practice this utility model. Although this utility model has been described in conjunction with its preferred embodiments, these embodiments are merely illustrative and not intended to limit the scope of this utility model.

[0022] Plateless printing, also known as digital printing, is a method of printing information stored in image memory directly onto a substrate such as a cardboard box without the need for a printing plate. During printing, the cardboard box needs to be pressed into a plate-like structure, and then shipped together after printing. However, in actual production, the plate-like cardboard box is inevitably subjected to compression during printing. In order to test the vibration resistance of the printed cardboard box, the applicant has developed a vibration testing device specifically for plateless printed cardboard boxes.

[0023] See Figures 1-5 In one embodiment of this utility model, a vibration testing device for plateless printed cartons includes: a frame 1 and a drive component 2 mounted on the frame 1, a turntable 3 that rotates under the drive of the drive component 2, multiple amplitude adjustment components 4 disposed on the turntable 3, a support component 5 disposed on the upper side of the turntable 3 and slidably connected to the upper end surface of the turntable 3, and a tray 6 supported by the support component 5, wherein the multiple amplitude adjustment components 4 are all disposed within the sliding stroke of the support component 5; the tray 6 is used to load the cartons to be tested; the vibration testing device also includes multiple support columns 7 disposed on the lower side of the turntable 3 and slidably connected to the lower end of the turntable 3, the support columns 7 being used to provide stable support for the turntable 3 and ensure the horizontality of the turntable 3 rotation.

[0024] Specifically, the frame 1 is a frame structure composed of a base plate 11, a bracket 12, and a top plate 13. The drive component 2 and multiple support columns 7 are all fixedly installed on the base plate 11, wherein the multiple support columns 7 are all located on the outside of the drive component 2. The drive component 2 includes components such as a motor, a coupling, and an intermediate shaft. The output shaft of the motor is connected to the lower end of the intermediate shaft through a coupling, and the upper end of the intermediate shaft is fixedly connected to the center of the turntable 3. The operation of the motor can drive the turntable 3 to rotate.

[0025] The support column 7 includes a support column body 71, a ball seat 72, and ball bearings 73. The lower end of the support column body 71 is fixedly connected to the base plate 11. The ball bearings 73 are located at the top of the support column body 71 through the ball seat 72. Multiple ball bearings 73 are located at the same horizontal height and are slidably connected to the lower end face of the turntable 3. This design can provide stable support for the rotation of the turntable 3 and reduce the contact area between the turntable 3 and the support column 7. The reduction of friction will significantly reduce the consumption of useless energy, thereby improving the overall energy efficiency of the vibration testing device.

[0026] The amplitude adjustment component 4 is provided in four sets, and the four sets of amplitude adjustment components 4 are evenly distributed around the axis of the turntable 3. The amplitude adjustment component 4 includes a fixed plate 41, an adjustment plate 42, a rotating shaft 43, and an adjustment assembly. The fixed plate 41 is fixedly set on the turntable 3. The first end of the fixed plate 41 is hinged to the first end of the adjustment plate 42 through the rotating shaft 43. The adjustment assembly is set between the fixed plate 41 and the adjustment plate 42 and is used to adjust the included angle between the fixed plate 41 and the adjustment plate 42. It can be understood that the adjustment plate 42 is inclined under the action of the adjustment assembly. At the same time, the first end of the adjustment plate 42 is connected to the upper surface of the turntable 3. During the test, as the turntable 3 rotates, the lower end of the support 5 can rise along the adjustment plate 42. After the support 5 is separated from the adjustment plate 42, the support 5 falls and hits the turntable 3, which can complete one vibration.

[0027] In this embodiment, the adjusting assembly includes a screw 44 and an adjusting cylinder 45. The lower end of the screw 44 is fixedly connected to the fixed plate 41, and the adjusting cylinder 45 is sleeved on the top of the screw 44 and threadedly connected to the screw 44. Furthermore, to improve the stability of the structure, the top of the adjusting cylinder 45 is fixedly connected to the lower end of the adjusting plate 42. In implementation, the lower end of the adjusting plate 42 has an insertion hole corresponding to the position of the adjusting cylinder 45. A rubber ring is provided in the insertion hole. The adjusting cylinder 45 is tightly fitted to the adjusting plate 42 through the rubber ring. The screw 44 and the adjusting cylinder 45 form a structure similar to a telescopic rod. By rotating the adjusting cylinder 45, the length of the screw 44 and the adjusting cylinder 45 can be adjusted, thereby adjusting the angle between the fixed plate 41 and the adjusting plate 42. As the tilt angle of the adjusting plate 42 is changed, the height of the top of the adjusting plate 42 also changes, thereby realizing the adjustment of the amplitude.

[0028] The support member 5 is provided in four sets, and the four sets of support members 5 are evenly distributed around the axis of the turntable 3. The support member 5 includes a universal wheel 51, a connecting rod 52 and a suction cup 53. The universal wheel 51 is located at the lower end of the connecting rod 52 and is slidably connected to the turntable 3. The upper part of the connecting rod 52 is slidably inserted through the top plate 13. The suction cup 53 is located at the top of the connecting rod 52 and is used to fix the tray 6. It should be noted that the number of support members 5 is matched with the number of amplitude adjustment members 4 and they are all evenly distributed around the axis of the turntable 3. This allows the four support members 5 to rise or fall synchronously, ensuring that the device can generate accurate and specific amplitude vibration.

[0029] When the motor drives the turntable 3 to rotate, the adjustment plate 42 on the turntable 3 rotates accordingly. After the universal wheel 51 contacts the adjustment plate 42, it can gradually rise along the adjustment plate 42. After the universal wheel 51 rises to the top of the adjustment plate 42 and disengages from the adjustment plate 42, it falls back to the turntable 3 due to the loss of support and continues to slide. During this process, the tray 6 rises first, and then falls after reaching the maximum amplitude. The carton inside the tray 6 is subjected to a vibration after falling.

[0030] In one embodiment, due to different road conditions, the amplitude and frequency of vibration vary. The aforementioned solution only adjusts the amplitude, not the frequency. Therefore, to further improve the testing performance of this device, the turntable 3 has four grooves 31 corresponding to the positions of the amplitude adjustment components 4. The depth of each groove 31 is equal to the sum of the thicknesses of the fixed plate 41 and the adjusting plate 42. The fixed plate 41 is located within the grooves 31. When the vibration frequency needs adjustment, the screws 44 and adjusting cylinders 45 within a set of amplitude adjustment components 4 can be removed, allowing the fixed plate 41 and the adjusting plate 42 to fit together. At this point, the upper surface of the adjusting plate 42 is flush with the upper surface of the turntable 3. By reducing the number of amplitude adjustment components 4, the vibration frequency can be adjusted. In this embodiment, since the amplitude adjustment component 4 is partially submerged in the grooves 31, the caster wheel 51 can directly contact the adjusting plate 42 after detaching from the turntable 3 during rolling, avoiding ineffective vibration caused by collisions when the caster wheel 51 contacts other parts of the amplitude adjustment component 4.

[0031] In one embodiment, the adjusting component can also be a slider. In implementation, the slider is slidably mounted on the fixed plate 41. In this case, the slider can be considered a pad. When the slider approaches the rotating shaft 43, it widens the angle between the fixed plate 41 and the adjusting plate 42, raising the height of the top of the adjusting plate 42, thereby increasing the amplitude. Conversely, when the slider slides away from the rotating shaft 43, it narrows the angle between the fixed plate 41 and the adjusting plate 42, lowering the height of the top of the adjusting plate 42, thereby reducing the amplitude. The slider configuration simplifies the structure of the amplitude adjusting component 4 and reduces the maintenance cost of the equipment.

[0032] In this embodiment, in order to facilitate the adjustment of amplitude, the height of the top of the adjustment plate 42 at the corresponding position can be obtained according to the thickness of the slider and the distance between the slider and the rotating shaft 43, and reflected on the fixed plate 41. In practice, a scale indicating the amplitude can be set on the fixed plate 41. That is to say, the amplitude can be precisely adjusted by the cooperation of the slider and the scale.

[0033] This technical solution utilizes an amplitude adjustment component on a rotating turntable. The amplitude adjustment component includes a fixed plate and an adjusting plate whose included angle can be adjusted via an adjustment assembly. A support component for supporting the tray is slidably connected to the adjusting plate and the turntable. This allows the amplitude to be adjusted during testing by changing the included angle between the fixed plate and the adjusting plate, thus expanding the testing capability of the testing device. At the same time, the adjustment process of amplitude and frequency is convenient and quick, greatly improving testing efficiency.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model 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 utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A vibration testing device for plateless printed cartons, characterized in that: The device includes a frame (1), a drive unit (2) installed at the lower part of the frame (1), a turntable (3) that is driven by the drive unit (2) and rotates, multiple amplitude adjustment units (4) on the turntable (3), a support unit (5) on the upper part of the frame (1) and slidably connected to the upper end face of the turntable (3), and a tray (6) supported by the support unit (5) and located on the upper side of the frame (1). The multiple amplitude adjustment units (4) are all located within the sliding stroke of the support unit (5). The amplitude adjustment unit (4) includes a fixed plate (41), an adjustment plate (42), a rotating shaft (43) and an adjustment component. The fixed plate (41) is fixedly installed. The first end of the fixed plate (41) is hinged to the first end of the adjustment plate (42) through the rotating shaft (43). The adjustment component is located between the fixed plate (41) and the adjustment plate (42) and is used to adjust the included angle between the fixed plate (41) and the adjustment plate (42).

2. The vibration testing device for plateless printed cartons according to claim 1, characterized in that: The adjustment assembly includes a screw (44) and an adjustment cylinder (45); the lower end of the screw (44) is fixedly connected to the fixed plate (41), and the adjustment cylinder (45) is sleeved on the top of the screw (44) and threadedly connected to the screw (44); the top of the adjustment cylinder (45) is fixedly connected to the lower end of the adjustment plate (42).

3. The vibration testing device for plateless printed cartons according to claim 2, characterized in that: The lower end of the adjusting plate (42) is provided with an insertion hole corresponding to the position of the adjusting cylinder (45); a rubber ring is provided in the insertion hole; the adjusting cylinder (45) is tightly fitted with the adjusting plate (42) through the rubber ring.

4. The vibration testing device for plateless printed cartons according to claim 1, characterized in that: The adjustment component includes a slider; the slider is slidably mounted on a fixed plate (41).

5. A vibration testing device for plateless printed cartons according to claim 4, characterized in that: The fixed plate (41) is provided with a scale indicating the amplitude.

6. The vibration testing device for plateless printed cartons according to claim 1, characterized in that: The turntable (3) has grooves (31) matching the number of amplitude adjustment components (4); the amplitude adjustment components (4) are located in the grooves (31); the depth of the grooves (31) is equal to the sum of the thicknesses of the fixed plate (41) and the adjustment plate (42).

7. The vibration testing device for plateless printed cartons according to claim 1, characterized in that: The support member (5) includes a caster wheel, a connecting rod and a suction cup. The caster wheel is located at the lower end of the connecting rod and is slidably connected to the turntable (3). The suction cup is located at the top end of the connecting rod. The connecting rod is connected to the tray (6) through the suction cup.

8. The vibration testing device for plateless printed cartons according to claim 1, characterized in that: The number of amplitude adjustment components (4) is the same as the number of support components (5).

9. A vibration testing device for plateless printed cartons according to claim 1, characterized in that: It also includes multiple support columns (7); the multiple support columns (7) are set on the frame (1) and located on the lower side of the turntable (3); the top of the multiple support columns (7) are all slidably connected to the lower end of the turntable (3).

10. A vibration testing device for plateless printed cartons according to claim 9, characterized in that: The support column (7) includes a support column body, a ball seat and a ball bearing. The support column body is fixed on the frame (1). The ball bearing is movably disposed at the top of the support column body through the ball seat. The ball bearing is slidably connected to the lower end face of the turntable (3).

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