Plastic meal box deformation resistance detection device

Abstract

The utility model discloses a plastic lunch box anti-deformation detection device, which belongs to the technical field of lunch box quality inspection and comprises a detection platform, a clamping piece and an L-shaped support are fixed above the detection platform, a pressure applying assembly for applying pressure to a plastic lunch box is mounted on a top plate of the L-shaped support and comprises a vertical sliding shaft, and the vertical sliding shaft is provided with a clamping groove. The sliding shaft slides on a top plate of the L-shaped support, a pressing plate is fixed to the lower end of the sliding shaft, a limiting plate is vertically fixed to the upper end of the sliding shaft, a distance sensor is fixed to the lower end of the limiting plate, and a plurality of weight stacks are slidably arranged on the sliding shaft and located between the top plate of the L-shaped support and the pressing plate. According to the detection device disclosed by the utility model, the plurality of weight stacks are arranged on the sliding shaft, and the pressure applied to the plastic meal box can be changed according to the material of the plastic meal box, so that the detection device has relatively high applicability; the recovery degree of the plastic meal box is judged by comparing data detected by the distance sensor during two no-load tests before and after pressure application.

Description

Technical Field

[0001] The utility model belongs to the technical field of lunch box quality inspection, and in particular relates to an anti-deformation detection device for a plastic lunch box. Background Art

[0002] Plastic lunch boxes are plastic containers made of food-grade plastic materials for the convenience of people taking out food. It is a very common plastic product in our daily life. With the growing culture of takeout, the application of plastic lunch boxes is becoming more and more widespread.

[0003] In order to detect the anti-deformation performance of plastic lunch boxes, it is often necessary to apply a certain pressure on them, and judge the anti-deformation performance of the plastic lunch boxes according to the degree of recovery of the plastic lunch boxes after the pressure is applied. There are many kinds of plastic lunch boxes used in our lives, which are not only reflected in their different sizes, but also in their different thicknesses. The pressure applied to test the anti-deformation performance of different plastic lunch boxes needs to be different, and the deformation of the plastic lunch boxes may also be caused by other factors. Directly measuring the recovery degree of the plastic lunch boxes after the pressure is applied is likely to lead to inaccurate measurement. In order to solve the above problems, a plastic lunch box anti-deformation detection device is now provided.

[0004] It should be noted that the above contents belong to the technical knowledge of the inventor and do not necessarily constitute prior art. Utility Model Content

[0005] In order to solve the above problems, the purpose of the utility model is to provide a plastic lunch box anti-deformation detection device. By arranging a number of counterweights on the sliding shaft, the pressure applied to the plastic lunch box can be changed according to the material of the plastic lunch box, so that the detection device has higher applicability; by comparing the data detected by the distance sensor during two no-load tests before and after the pressure is applied, the recovery degree of the plastic lunch box is judged, the measurement error caused by the deformation of the plastic lunch box due to other factors is avoided, and the detection accuracy is improved.

[0006] To achieve the above-mentioned purpose, the utility model proposes a plastic lunch box anti-deformation detection device, which includes a detection platform, above which a clamp and an L-shaped bracket are fixed, and the top plate of the L-shaped bracket is equipped with a pressure component for applying pressure to the plastic lunch box.

[0007] The pressure-applying assembly includes a vertical sliding shaft, which slides on the top plate of the L-shaped bracket, a pressure plate is fixed at the lower end of the sliding shaft, a limit plate is vertically fixed at the upper end, a distance sensor is fixed at the lower end of the limit plate, and a plurality of counterweight plates are slidably arranged on the sliding shaft, and the counterweight plates are located between the top plate of the L-shaped bracket and the pressure plate.

[0008] Furthermore, the clamping member includes symmetrically distributed clamping arms, which include a vertical first cylinder, which is fixed on the detection platform, a second cylinder is vertically fixed on the output shaft of the first cylinder, a first drive box is fixed on the output shaft of the second cylinder, a first motor is fixed in the first drive box, the output shaft of the first motor passes through the first drive box, and a first clamping plate is fixed on a side plate away from the second cylinder, and the first clamping plates on the two clamping arms correspond to each other.

[0009] Furthermore, a vertical hydraulic telescopic rod is fixed above the top plate of the L-shaped bracket, and the output end of the hydraulic telescopic rod faces the limit plate.

[0010] Furthermore, a loading assembly for loading and unloading plastic lunch boxes is fixed on the top plate of the L-shaped bracket.

[0011] Furthermore, the feeding assembly includes a third cylinder fixed above the top plate of the L-shaped bracket, the output shaft of the third cylinder passes through the top plate of the L-shaped bracket and is fixed with a second drive box, a second motor is fixed in the second drive box, the output shaft of the second motor passes through the bottom plate of the second drive box and is vertically fixed with a fourth cylinder, a third drive box is fixed on the output shaft of the fourth cylinder, a third motor is fixed in the third drive box, the output shaft of the third motor passes through the side plate of the third drive box away from the fourth cylinder and is fixed with a clamp.

[0012] Furthermore, the fixture includes a U-shaped bracket fixed on the output shaft of the third motor, the inner walls on both sides of the U-shaped bracket are vertically fixed with the fifth cylinder, and the second clamping plate is fixed on the output shaft of the fifth cylinder.

[0013] The anti-deformation detection device for plastic lunch boxes proposed by the utility model can bring the following beneficial effects:

[0014] 1. The detection device of the utility model can change the pressure applied to the plastic lunch box according to the material of the plastic lunch box by arranging a plurality of weight plates on the sliding shaft, so that the detection device has high applicability;

[0015] 1. The detection device of the utility model determines the recovery degree of the plastic lunch box by comparing the data detected by the distance sensor during two no-load tests before and after the pressure is applied, thereby avoiding the measurement error caused by the deformation of the plastic lunch box due to other factors and improving the accuracy of the detection;

[0016] 2. When clamping a plastic lunch box, the detection device of the utility model can control the plastic lunch box to rotate and adjust its position in a direction perpendicular to the second cylinder by starting the third cylinder, and can control the plastic lunch box to rotate and adjust its position in a direction parallel to the second cylinder by starting the first motor, so that the detection device can adjust the detection position of the plastic lunch box in all directions. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0018] In the attached picture:

[0019] Figure 1 This is a first-view structural schematic diagram of a plastic lunch box anti-deformation detection device according to the utility model.

[0020] Figure 2 for Figure 1 Enlarged structural diagram at A in the middle.

[0021] Figure 3 This is a second viewing angle structural schematic diagram of a plastic lunch box anti-deformation detection device of the utility model.

[0022] Figure 4 It is a structural schematic diagram of the feeding assembly of the utility model. DETAILED DESCRIPTION

[0023] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in the form of examples in conjunction with the accompanying drawings.

[0024] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0026] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] In the present utility model, unless otherwise clearly specified and limited, the first feature "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description of reference terms "one scheme", "some schemes", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the scheme or example are included in at least one scheme or example of the present utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same scheme or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more schemes or examples.

[0028] The embodiment of the utility model provides a plastic lunch box anti-deformation detection device, the detection device comprises a detection platform 1, such as Figure 1 As shown, a clamping member 2 and an L-shaped bracket 3 are fixed above the detection platform 1, a pressure component 4 for applying pressure to the plastic lunch box is installed on the top plate of the L-shaped bracket 3, and a loading component 5 for loading and unloading the plastic lunch box is also fixed on the top plate of the L-shaped bracket 3.

[0029] The clamping member 2 includes symmetrically distributed clamping arms, which include a vertical first cylinder 21. The first cylinder 21 is fixed on the detection platform 1. A second cylinder 22 is vertically fixed on the output shaft of the first cylinder 21. A first driving box 23 is fixed on the output shaft of the second cylinder 22. A first motor 24 is fixed in the first driving box 23. The output shaft of the first motor 24 passes through the first driving box 23. A first clamping plate 25 is fixed on a side plate away from the second cylinder 22. The first clamping plates 25 on the two clamping arms correspond to each other.

[0030] The pressure assembly 4 includes a vertical sliding shaft 41, such as Figure 2 , Figure 3As shown, the sliding shaft 41 is located on the top plate of the L-shaped bracket 3 and slides. A pressure plate 42 is fixed to the lower end of the sliding shaft 41, and a limit plate 44 is vertically fixed to the upper end. A distance sensor 46 is fixed to the lower end of the limit plate 44. The distance sensor 46 is electrically connected to a preset control system. The distance sensor 46 is used to detect the distance between the limit plate 44 and the top plate of the L-shaped bracket 3. A vertical hydraulic telescopic rod 45 is fixed above the top plate of the L-shaped bracket 3, and the output end of the hydraulic telescopic rod 45 faces the limit plate 44.

[0031] A plurality of weight plates 43 are slidably disposed on the sliding shaft 41 , and the weight plates 43 are located between the top plate of the L-shaped bracket 3 and the pressing plate 42 .

[0032] The feeding assembly 5 includes a third cylinder 51 fixed above the top plate of the L-shaped bracket 3, as shown in FIG. Figure 4 As shown, the output shaft of the third cylinder 51 passes through the top plate of the L-shaped bracket 3 and is fixed with a second drive box 52, a second motor 53 is fixed in the second drive box 52, the output shaft of the second motor 53 passes through the bottom plate of the second drive box 52 and is vertically fixed with a fourth cylinder 54, a third drive box 55 is fixed on the output shaft of the fourth cylinder 54, a third motor 56 is fixed in the third drive box 55, the output shaft of the third motor 56 passes through the side plate of the third drive box 55 away from the fourth cylinder 54 and is fixed with a clamp.

[0033] The fixture includes a U-shaped bracket 57 fixed on the output shaft of the third motor 56 , a fifth cylinder 58 is vertically fixed to the inner walls on both sides of the U-shaped bracket 57 , and a second clamping plate 59 is fixed to the output shaft of the fifth cylinder 58 .

[0034] When in use, the pressing plate 42 is lifted by extending the hydraulic telescopic rod 45, and the two second clamping plates 59 are controlled to move to one side of the plastic lunch box to be loaded by the third cylinder 51, the second motor 53 and the fourth cylinder 54, respectively. The two second clamping plates 59 are controlled to approach each other by starting the fifth cylinder 58 to clamp the plastic lunch box, and the third cylinder 51, the second motor 53 and the fourth cylinder 54 are used to clamp the plastic lunch box between the two first clamping plates 25. The plastic lunch box is controlled to rotate in a direction perpendicular to the second cylinder 22 to adjust its position by starting the third cylinder 51, and the two first clamping plates 25 are controlled to clamp the plastic lunch box by extending the second cylinder 22, and then the clamp is controlled to release the plastic lunch box. The plastic lunch box can be controlled to rotate in a direction parallel to the second cylinder 22 to adjust its position by starting the first motor 24. Therefore, the detection position of the plastic lunch box can be adjusted in all directions by cooperating with the loading component 5 and the clamping member.

[0035] First, a no-load test is performed. During the no-load test, the lowest counterweight plate 43 is clamped by a fixture, and the output end thereof is controlled to separate from the limit plate 44 by contracting the hydraulic telescopic rod 45. Under the action of gravity, the pressing plate 42 descends to contact the plastic lunch box, and the data detected by the distance sensor 46 is recorded for the first time.

[0036] Then, the hydraulic telescopic rod 45 is extended again to lift the pressing plate 42, and an appropriate counterweight is selected to press the plastic lunch box. When selecting, the corresponding counterweight plate 43 is clamped by the clamp, and the counterweight plate 43 below the clamped counterweight plate 43 is used for counterweight. Then, the output end of the hydraulic telescopic rod 45 is controlled to disengage from the limit plate 44, so that the pressing plate 42 presses the plastic lunch box again, and the data detected by the current distance sensor 46 is recorded. The deformation degree of the plastic lunch box is determined by subtracting the data detected by the distance sensor 46 twice, and then another no-load test is performed. The recovery degree of the plastic lunch box is determined by subtracting the data detected by the distance sensor 46 in the two no-load tests, and then the deformation resistance of the plastic lunch box is determined.

[0037] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0038] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. A plastic lunch box anti-deformation detection device, comprising a detection platform (1), a clamping member (2) and an L-shaped bracket (3) are fixed above the detection platform (1), characterized in that: The top plate of the L-shaped bracket (3) is equipped with a pressure component (4) for applying pressure to the plastic lunch box; The pressure-applying assembly (4) comprises a vertical sliding shaft (41), the sliding shaft (41) is located on the top plate of the L-shaped bracket (3) and slides, a pressure plate (42) is fixed at the lower end of the sliding shaft (41), a limit plate (44) is vertically fixed at the upper end, a distance sensor (46) is fixed at the lower end of the limit plate (44), and a plurality of weight plates (43) are slidably provided on the sliding shaft (41), and the weight plates (43) are located between the top plate of the L-shaped bracket (3) and the pressure plate (42).

2. A plastic lunch box anti-deformation detection device according to claim 1, characterized in that: The clamping member (2) comprises symmetrically distributed clamping arms, the clamping arms comprising a vertical first cylinder (21), the first cylinder (21) being fixed on the detection platform (1), a second cylinder (22) being vertically fixed on the output shaft of the first cylinder (21), a first drive box (23) being fixed on the output shaft of the second cylinder (22), a first motor (24) being fixed inside the first drive box (23), the output shaft of the first motor (24) passing through the first drive box (23), a first clamping plate (25) being fixed on a side plate of the side away from the second cylinder (22), and the first clamping plates (25) on the two clamping arms correspond to each other.

3. A plastic lunch box anti-deformation detection device according to claim 2, characterized in that: A vertical hydraulic telescopic rod (45) is fixed above the top plate of the L-shaped bracket (3), and the output end of the hydraulic telescopic rod (45) faces the limit plate (44).

4. A plastic lunch box anti-deformation detection device according to claim 3, characterized in that: A loading assembly (5) for loading and unloading plastic lunch boxes is also fixed on the top plate of the L-shaped bracket (3).

5. A plastic lunch box anti-deformation detection device according to claim 4, characterized in that: The feeding assembly (5) comprises a third cylinder (51) fixed above the top plate of the L-shaped bracket (3); the output shaft of the third cylinder (51) passes through the top plate of the L-shaped bracket (3) and is fixed with a second drive box (52); a second motor (53) is fixed inside the second drive box (52); the output shaft of the second motor (53) passes through the bottom plate of the second drive box (52) and is vertically fixed with a fourth cylinder (54); a third drive box (55) is fixed on the output shaft of the fourth cylinder (54); a third motor (56) is fixed inside the third drive box (55); the output shaft of the third motor (56) passes through a side plate of the third drive box (55) away from the fourth cylinder (54) and is fixed with a clamp.

6. A plastic lunch box anti-deformation detection device according to claim 5, characterized in that: The clamp comprises a U-shaped bracket (57) fixed on the output shaft of the third motor (56), a fifth cylinder (58) is vertically fixed to the inner walls on both sides of the U-shaped bracket (57), and a second clamping plate (59) is fixed on the output shaft of the fifth cylinder (58).

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