Food-grade Environmentally Friendly Blister Box Compression Detection System and Method

Abstract

The present invention discloses a food-grade environmental protection plastic suction box compressive strength detection system and method, which relates to the technical field of compressive strength testing, and includes a frame; a punching device for punching holes in the plastic suction box cover; a detection component installed at the punching position on the suction box cover for detecting the deformation of the suction box when it is squeezed; a walking simulation component for simulating the mutual extrusion environment of the suction boxes in the walking state; a driving simulation component. By setting a storage bag for placing the suction boxes side by side, the present invention simulates the extrusion state of the suction boxes in the takeout environment, thereby creating the pressure application condition for the suction boxes in the horizontal direction; at the same time, a detection component is set to feedback the deformation of the suction boxes, so as to reflect the effect generated under the pressure application; and a walking simulation component and a driving simulation component are set to simulate the walking process and the riding process during the delivery process, so as to be able to reflect the objective conditions existing in the use process of the food suction boxes and improve the objective authenticity of the detection.

Description

Technical Field

[0001] The invention relates to the technical field of compression resistance testing, and in particular to a food-grade environmentally friendly blister box compression resistance testing system and method. Background Art

[0002] Food-grade environmentally friendly blister boxes are usually made of plastic sheets such as PP (polypropylene), PET (polyethylene terephthalate), and PE (polyethylene). These materials meet food safety standards, are non-toxic, odorless, resistant to acid and alkali corrosion, and will not cause pollution to food; after the blister boxes are produced, a series of tests are required to detect the various performance indicators of the blister boxes, among which the compression test of the blister boxes can reflect the quality of the product.

[0003] In the prior art, the compressive performance test of food-grade environmentally friendly blister boxes usually adopts the test method of applying pressure in the vertical direction, that is, applying a vertical load directly to the top of the box through a pressure tester, observing its deformation, rupture or height change and other indicators, so as to evaluate the compressive strength of the box. This type of test method is based on the simulation of static stacking scenarios, and mainly reflects the ability of blister boxes to withstand vertical stacking pressure during storage or transportation. Its test standards (such as ISO 12048, GB / T4857.4) are also mostly centered on the mechanical properties of single-direction pressure.

[0004] However, this type of traditional compression test method has significant limitations when applied to food blister boxes. Since food blister boxes are usually used for takeout or packaging, and for easy carrying, blister boxes are usually placed in plastic bags: the existing technology can only simulate the mechanical response of blister boxes in a vertical stacking state, and cannot reproduce the more complex multi-directional dynamic extrusion effect in actual delivery scenarios. For example, in the process of food delivery, multiple blister boxes containing food are often placed in a handbag in a parallel manner. When the handbag is lifted or moved, the box body gathers toward the middle of the bag body due to gravity, squeezes each other in the horizontal direction and generates lateral pressure; at the same time, dynamic factors such as vibration or bumps during transportation (such as walking and carrying and driving) will further aggravate the collision and friction between the box bodies. This type of multi-box parallel and dynamic extrusion composite stress state is essentially different from the single-direction static loading condition in the traditional vertical compression test. There is an urgent need for a compression test device that can simulate the environment of the food blister box delivery process. Summary of the invention

[0005] The purpose of the present invention is to provide a food-grade environmentally friendly blister box compression test system and method to solve the problem that traditional technology can only perform single-direction static loading condition testing and cannot simulate the food blister box delivery process environment for compression testing.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] Food-grade environmental protection plastic suction box compression detection system, including: a frame, inside which two belt conveyors are installed; a punching device for punching holes in the plastic suction box cover; a detection component installed at the punching position on the suction box cover for detecting the deformation of the suction box when it is squeezed; a walking simulation component for simulating the mutual extrusion environment of the suction boxes in the walking state; a driving simulation component for simulating the mutual extrusion environment of the suction boxes in the vehicle driving state; a plurality of holding bags respectively suspended on the driving simulation component and the walking simulation component for arranging and holding two plastic suction boxes side by side; a squeezing component for applying a pressure environment to the suction box; the walking simulation component and the driving simulation component are respectively placed on the conveyor belts of the two belt conveyors.

[0008] With the above technical solution, by setting the holding bags for arranging the suction boxes side by side, the extrusion state of the suction boxes in the out-of-home environment is simulated, thereby creating the pressure application condition for the suction boxes in the horizontal direction; at the same time, a detection component is set to feedback the deformation of the suction box, so as to reflect the effect generated under the pressure application; and a walking simulation component and a driving simulation component are set to simulate the walking process and the riding process during the delivery process, so as to be able to reflect the objective conditions existing in the use process of the food plastic suction box and improve the objective authenticity of the detection.

[0009] A further improvement of the technical solution of the present invention lies in: the detection component includes a detection plug and a movable pressure ring. The lower part of the detection plug is an inner pressing part, the middle part is a screwing part, and the upper part is a screwing grip part. The outer wall of the screwing part has threads, and the movable pressure ring is threadedly connected to the outside of the screwing part. Sealing rings are fixedly connected to the sides of the inner pressing part and the movable pressure ring close to each other; a sampling pipe and an air inlet pipe are fixedly inserted into the detection plug. Both the sampling pipe and the air inlet pipe penetrate the detection plug up and down. The top of the sampling pipe is connected to a display pipe through a detachable pipeline joint. A one-way valve is fixedly connected to the top of the display pipe. The bottom of the sampling pipe is fixedly connected to a suction pipe. The display pipe is set as a transparent pipe and a scale is provided on the outer wall; a one-way valve is fixedly connected to the bottom of the air inlet pipe; the screwing grip part is set as a prism structure with equal bottom side lengths.

[0010] With the above technical solution, by setting a special detection component, when the suction box deforms or resets, the pressure in the suction box changes, so that the detection liquid is discharged into the display pipe, thereby realizing the "quantification" of the deformation situation. When the detection liquid is contained in the suction box, the detection liquid will be squeezed upward through the above pipelines in turn. After the experiment, by counting the amount of the detection liquid in the above suction pipe, sampling pipe and display pipe, the total deformation amount generated in the simulation environment can be reflected.

[0011] A further improvement of the technical solution of the present invention is that: the walking simulation component includes a U-shaped frame, two eccentric shafts are rotatably connected between the inner sides of the U-shaped frame, both ends of the eccentric shafts extend to the two sides of the U-shaped frame respectively and are fixedly connected with turning handles, a vertical plate is rotatably connected between the turning handles located on the same side of the U-shaped frame, and pedals are fixedly connected at the bottom of the vertical plates for increasing the contact area with the supporting surface during walking, thereby increasing the stability of walking, and the pedals are placed on one of the belt conveyor lines; a support beam is fixedly connected to the top of the U-shaped frame, and support arms are fixedly connected to both sides of the support beam, and a number of hooks for hanging bags are fixedly connected to the bottom of the support arms; a motor is fixedly installed on one side of the inner wall of the U-shaped frame, and the output end of the motor is connected to the two eccentric shafts through a synchronous belt and a synchronous wheel transmission.

[0012] By adopting the above technical solution, the motor is controlled to drive the two eccentric shafts to rotate, thereby driving the rotating handles to rotate. The rotating handles on both sides of the U-shaped frame are parallel to each other and in opposite directions. The two rotating handles on each side jointly drive a vertical plate to rotate around the eccentric shaft, and the rotation process is vertically downward. The two vertical plates cooperate to simulate walking movements. At the same time, in order to reduce the span of the overall setting of the device, the above structure is set on one of the belt conveyor lines, so that the walking simulation process is carried out similar to that on a treadmill.

[0013] A further improvement of the technical solution of the present invention is that: the top of the belt conveyor line on which the walking simulation component is placed is fixedly connected to a fixed frame, and the top of the inner side of the fixed frame is fixedly connected to two anti-fall frames, the anti-fall frame is composed of two U-shaped plates arranged in parallel, and there is a gap between the two U-shaped plates, and the top of the support beam is fixedly connected to two guide rods, the top ends of the two guide rods respectively pass through the gaps on the two anti-fall frames and are fixedly connected to a mounting plate, the two sides of the guide rods are symmetrically fixedly connected to inclined plates, one side of the inclined plate is slidably connected to a sliding rod, one end of the sliding rod is fixedly connected to a pressure head, the end of the sliding rod away from the pressure head extends to the other side of the inclined plate and is fixedly connected to the pressure rod, the outer side of the sliding rod is fixedly connected to a pad, and a spring is sleeved on the outside of the sliding rod and located between the pad and the inclined plate; pressure sensors are fixedly installed on both sides of the mounting plate; the top of the inner side of the fixed frame is fixedly connected to an iron plate, and the top of the mounting plate is fixedly installed with an electromagnet used in conjunction with the iron plate.

[0014] By adopting the above technical solution, an anti-fall frame composed of two parallel U-shaped plates is set up, so that the guide rod cannot tilt sideways in the walking direction during walking; and pressure rods are symmetrically arranged on both sides of the guide rod. When the walking simulation component is in an upright posture, the support beam is in a horizontal state, and correspondingly, the pressure rod does not contact the inner side of the anti-fall frame; when the walking simulation component tilts in the front and rear directions, the pressure rod in the tilting direction contacts the anti-fall frame and provides auxiliary support, thereby preventing tilting.

[0015] A further improvement of the technical solution of the present invention lies in that: the driving simulation component includes a vehicle body, four wheels are arranged on the vehicle body, two belt strips are fixedly connected to the outer side of the conveyor belt of the belt conveyor line on which the driving simulation component is placed, a mounting frame is fixedly connected to the top of the belt conveyor line, and the wheels are placed on the belt strips; a limit rod is fixedly connected between the inner sides of the vehicle body, two limit frames are fixedly connected to one side of the mounting frame, and strip grooves are opened in the middle of the limit frames, the two limit frames are respectively in contact with the two sides of the inner wall of the vehicle body, and the limit rod passes through the two strip grooves at the same time; a bracket is fixedly connected to the top of the vehicle body, and a number of hooks are also symmetrically arranged on both sides of the bracket.

[0016] By adopting the above technical solution, the belt conveyor line is controlled to rotate so that the wheels placed on the conveyor belt rotate along with the belt strip, and the vehicle body is restrained by the limit rod and the limit frame and cannot move, but the vehicle body appears to be in a riding state, thereby simulating the state in the riding state; after a period of testing, the deformation in the simulation process can be reflected by observing the amount of testing liquid in the testing component squeezed upward along the suction tube.

[0017] A further improvement of the technical solution of the present invention is that: a support plate is fixedly connected to one side of the vehicle body, a screw is threadedly connected to the top of the support plate, the bottom of the screw extends to the bottom of the support plate and is rotatably connected to a frame plate, a pressure roller is rotatably connected between the inner sides of the frame plates, two guide rods are symmetrically slidably connected to the top of the support plate, the bottoms of the guide rods extend to the bottom of the support plate and are fixedly connected to the frame plate, a protrusion is provided on the conveyor belt connected to the belt strip, the pressure roller is in contact with the protrusion, and a number of round beads are fixedly connected to the outer surface of the protrusion.

[0018] By adopting the above technical solution, a protrusion and a ball are set on the conveyor belt. When it is necessary to simulate a bumpy environment, the screw is rotated to make it move downward relative to the support plate and drive the frame plate to move downward until the pressure roller contacts the protrusion. During the operation of the belt conveyor line, the protrusion moves along with the conveyor belt, so that the ball continuously squeezes the pressure roller, thereby causing the vehicle body to shake continuously.

[0019] A further improvement of the technical solution of the present invention is that the extrusion component includes a platform plate fixedly connected to the inside of the frame, the top of the platform plate is fixedly connected to a gantry, the top of the gantry is fixedly connected to a plurality of hydraulic cylinders, the output ends of the hydraulic cylinders extend to the inside of the gantry and are fixedly connected to a press frame, and a through groove is provided at the bottom of the press frame.

[0020] By adopting the above technical solution, through setting up an extrusion component, the pressure-bearing capacity of the blister box can be directly detected. When pressure is applied, the blister box is deformed but the internal gas does not leak, so that the detection liquid is squeezed into the suction tube until it ruptures or the box cover is detached. Subsequent extrusions will not cause the detection liquid to continue to be squeezed out, and the amount of detection liquid squeezed out is the deformation amount caused by the pressure when the rupture or the box cover is detached.

[0021] A further improvement of the technical solution of the present invention lies in that: the suction pipe is provided with a flexible pipe, and a counterweight ball is connected to one end of the suction pipe far away from the sampling pipe. A through hole communicating with the suction pipe is opened inside the counterweight ball.

[0022] By adopting the above technical solution, by setting the suction pipe as a flexible pipe and arranging a counterweight ball at the end, the suction pipe can provide a sufficient displacement amount while ensuring that the end is located in the detection liquid.

[0023] The present invention also provides a method for detecting the compressive strength of a food-grade environmentally friendly plastic suction box, including the following steps:

[0024] S1: Punch a hole in the center of the lid of the plastic suction box, and install the detection component at the hole position in the center of the lid.

[0025] S2: Add detection liquid to the plastic suction box to be detected, and cover the lid with the detection component installed. The detection liquid is selected as a liquid with a color, and a detection liquid at a suitable temperature is selected according to the test requirements to form a control group.

[0026] S3: Wind plastic wrap between the plastic suction box and the lid, and the number of winding turns is greater than two. Since the detection component needs to be driven by the change of the internal pressure of the plastic suction box during extrusion in the detection process, the food plastic suction box itself has a certain sealing performance after covering the lid. Then, by winding plastic wrap at the sealing position, the sealing performance is increased and the situation that the lid of the plastic suction box is separated from the plastic suction box itself is reduced.

[0027] S4: Place the plastic suction box in the environment to be simulated for testing, and observe the amount of detection liquid collected by the detection component within the set time. The detection environment includes a driving simulation environment, a walking simulation environment, and a stacking pressure environment.

[0028] Due to the adoption of the above technical solution, the technical progress achieved by the present invention compared with the prior art is:

[0029] 1. By setting a storage bag for placing plastic suction boxes side by side, the extrusion state of the plastic suction box in the takeout environment is simulated, thereby creating the condition of applying pressure to the plastic suction box in the horizontal direction; at the same time, a detection component is set to feedback the deformation situation of the plastic suction box, so as to reflect the effect generated under the pressure application; and a walking simulation component and a driving simulation component are set to simulate the walking process and cycling process during the delivery process, so as to be able to reflect the objective conditions existing in the use process of the food plastic suction box and improve the objective authenticity of the detection.

[0030] 2. The present invention sets a special detection component. When the blister box is deformed or reset, the pressure in the blister box changes, so that the detection liquid is discharged into the display tube, so as to achieve "quantification" of the deformation. When the blister box contains the detection liquid, the detection liquid will be squeezed upward through the above-mentioned pipeline in turn. After the experiment is over, the total deformation amount generated in the simulated environment can be reflected by counting the amount of the detection liquid in the above-mentioned suction tube, sampling tube and display tube.

[0031] 3. The present invention provides a food-grade, environmentally friendly blister box compression resistance detection system and method. By setting an anti-fall frame composed of two parallel U-shaped plates, the guide rod cannot tilt sideways in the walking direction during walking; and pressure rods are symmetrically arranged on both sides of the guide rod. When the walking simulation component is in an upright posture, the support beam is in a horizontal state, and correspondingly, the pressure rod does not contact the inner side of the anti-fall frame; when the walking simulation component tilts toward the front and rear directions, the pressure rod in the tilting direction contacts the anti-fall frame and provides auxiliary support, thereby preventing the walking simulation component from tipping over.

[0032] 4. The present invention provides a protrusion with a ball on the driving simulation component. When it is necessary to simulate a bumpy environment, the screw is rotated to make it move downward relative to the support plate, and drive the frame plate to move downward until the pressure roller contacts the protrusion. During the operation of the belt conveyor line, the protrusion moves along with the conveyor belt, so that the ball continuously squeezes the pressure roller, thereby causing the vehicle body to continuously shake, thereby improving the objective reality of the test environment.

[0033] 5. The present invention can directly detect the pressure bearing capacity of the blister box by arranging an extrusion component. When pressure is applied, the blister box is deformed but the internal gas does not leak, so that the detection liquid is squeezed into the suction tube until it is broken or the box cover is detached. Subsequent squeezing will not cause the detection liquid to continue to be squeezed out, and the amount of the detection liquid squeezed out is the amount that reaches the point of breaking or the box cover being detached, thereby detecting the pressure resistance of the blister box. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The present invention will be further described below in conjunction with the accompanying drawings.

[0035] Figure 1 It is a schematic diagram of the structure of the present invention from the first viewing angle as a whole;

[0036] Figure 2 It is a schematic diagram of the structure of the second viewing angle of the whole invention;

[0037] Figure 3 This is one of the structural schematic diagrams of the walking simulation component of the present invention;

[0038] Figure 4 This is the second structural schematic diagram of the walking simulation component of the present invention;

[0039] Figure 5 This is one of the structural schematic diagrams of the driving simulation component of the present invention;

[0040] Figure 6 The second structural schematic diagram of the driving simulation component of the present invention;

[0041] Figure 7 The structural schematic diagram of the extrusion component of the present invention;

[0042] Figure 8 The installation structural schematic diagram of the detection component of the present invention;

[0043] Figure 9 The sectional structural schematic diagram of the detection component of the present invention;

[0044] Figure 10 For the present invention Figure 4 The enlarged view at position A in;

[0045] Figure 11 For the present invention Figure 4 The enlarged view at position B in;

[0046] Figure 12 For the present invention Figure 6 The enlarged view at position C in;

[0047] Figure 13 The schematic diagram of the state where the plastic suction boxes of the present invention are placed side by side in the storage bag.

[0048] In the figure: 1, frame; 2, detection plug; 201, inner pressing part; 202, screwing part; 203, screwing grip part; 3, U-shaped frame; 4, eccentric shaft; 5, motor; 6, turning handle; 7, vertical plate; 8, pedal; 9, support beam; 10, material supporting arm; 11, storage bag; 12, fixing frame; 13, iron plate; 14, anti-toppling frame; 15, guide rod; 16, mounting plate; 17, inclined plate; 18, sliding rod; 19, pressing rod; 20, spring; 21, pressing head; 22, pressure sensor; 23, backing plate; 24, electromagnet; 25, vehicle body; 26, wheel; 27, belt strip; 28, bracket; 29, limiting rod; 30, limiting frame; 31, strip-shaped groove; 32, protruding part; 33, round bead; 34, support plate; 35, screw; 36, frame plate; 37, pressing roller; 38, guiding rod; 39, punching device; 40, belt conveyor line; 41, suction pipe; 42, air inlet pipe; 43, display pipe; 44, counterweight ball; 45, movable pressing ring; 46, sampling pipe; 47, gantry; 48, hydraulic cylinder; 49, pressing frame; 50, mounting frame. Specific embodiments

[0049] The following further describes the present invention in detail with reference to embodiments:

[0050] Embodiment 1

[0051] As Figure 1 and Figure 2As shown in the figure, the present invention provides a food-grade environmentally friendly plastic suction box compression detection system, including: a frame 1, inside which two belt conveyors 40 are installed; a punching device 39 for punching holes in the plastic suction box cover; a detection component installed at the punching position on the suction box cover for detecting the deformation of the suction box when it is squeezed; a walking simulation component for simulating the mutual extrusion environment of the suction boxes in a walking state; a driving simulation component for simulating the mutual extrusion environment of the suction boxes in a vehicle driving state; a plurality of storage bags 11 respectively suspended on the driving simulation component and the walking simulation component for placing two plastic suction boxes side by side; an extrusion component for applying a pressure environment to the suction box; the walking simulation component and the driving simulation component are respectively placed on the conveyor belts of the two belt conveyors 40.

[0052] In this embodiment, by setting the storage bags 11 for placing the suction boxes side by side, the extrusion state of the suction boxes in the out-of-the-box environment is simulated, thereby creating the pressure application condition for the suction boxes in the horizontal direction; at the same time, a detection component is set to feedback the deformation of the suction boxes, so as to reflect the effect generated under the pressure application; and a walking simulation component and a driving simulation component are set to simulate the walking process and the riding process during the delivery process, so as to be able to reflect the objective conditions existing in the use process of the food suction boxes and improve the objective authenticity of the detection.

[0053] As Figure 8 and Figure 9 As shown in the figure, preferably, the detection component includes a detection plug 2 and a movable pressure ring 45. The lower part of the detection plug 2 is an inner pressing part 201, the middle part is a tightening part 202, and the upper part is a rotating grip part 203. The outer wall of the tightening part 202 has threads, and the movable pressure ring 45 is threadedly connected to the outside of the tightening part 202. Sealing rings are fixedly connected to the sides of the inner pressing part 201 and the movable pressure ring 45 close to each other; a sampling tube 46 and an air inlet tube 42 are fixedly inserted into the detection plug 2. The sampling tube 46 and the air inlet tube 42 both penetrate the detection plug 2 up and down. The top of the sampling tube 46 is connected to a display tube 43 through a detachable pipe joint. A one-way valve is fixedly connected to the top of the display tube 43. The bottom of the sampling tube 46 is fixedly connected to a suction tube 41. The display tube 43 is set as a transparent tube and a scale is arranged on the outer wall; a one-way valve is fixedly connected to the bottom of the air inlet tube 42; the rotating grip part 203 is set as a prism structure with equal bottom side lengths.

[0054] In the prior art, when performing the compression test on the plastic suction box, usually by observing the deformation of the plastic suction box or the pressure value applied when it reaches the rupture state. This determination requires directly observing the state of the plastic suction box. Since food plastic suction boxes are usually made of transparent materials, the changes are usually not obvious enough. Therefore, it is difficult to timely reflect the timing of achieving the above effects, and there are detection errors. Especially for the effect proposed in this solution of putting two plastic suction boxes into the storage bag 11 and simulating the pressure effect under the driving or walking state. Since this effect is usually a process of repeated small deformations and recoveries under repeated pressure, this process mainly requires measuring the repeated deformation amount within a certain period of time rather than reaching a certain deformation amount under a certain pressure. Therefore, only by observing, the tiny deformation amounts during the process cannot be counted, and the detection structure cannot be judged;

[0055] In this embodiment, by setting up a special detection component, based on the condition that a hole is drilled in the lid of the plastic suction box to be detected, the detection plug is passed through the hole from bottom to top until the inner pressing part 201 is tightly attached to the lid, and then the movable pressing ring 45 is screwed on until both the movable pressing ring 45 and the sealing ring on the inner pressing part 201 press the lid tightly; detection liquid is added into the plastic suction box, and then the lid is covered on the plastic suction box and multiple layers of plastic wrap are wound around to increase the sealing performance between the plastic suction box and the lid; making the inside and outside of the plastic suction box communicate only through the above-mentioned detection component. When the plastic suction box deforms or resets, at the same time, the pressure inside the plastic suction box changes, so that the detection liquid is discharged into the display tube 43, thereby realizing the "quantification" of the deformation situation; specifically: after the lid is covered on the food plastic suction box, it has a certain sealing performance itself, and plastic wrap is wound around the sealing position to increase the sealing performance and reduce the situation where the lid of the plastic suction box is separated from the plastic suction box itself. For the small deformations generated during the simulation process: when being squeezed and deformed, due to the lid being hermetically covered on the plastic suction box, the air pressure will be discharged outward through the suction pipe 41, the sampling pipe 46 and the display tube 43 (the one-way valve is conducting); when the plastic suction box is not being squeezed, it will rebound and return to its original state. During this process, the inside of the plastic suction box draws air from the outside through the air inlet pipe 42 (the one-way valve is conducting) to balance the air pressure. When the plastic suction box contains detection liquid, the detection liquid will be squeezed upward through the above-mentioned pipelines in turn. After the experiment, by counting the amount of the detection liquid in the above-mentioned suction pipe 41, sampling pipe 46 and display tube 43, the total deformation amount generated in the simulated environment can be reflected (due to the cycling simulation environment and the walking simulation environment, the plastic suction box will have continuous slight deformations in these two environments, and this kind of deformation cannot be directly captured and will not be maintained for a long time, so a detection component is set up for measurement). Since the one-way valve at the top of the display tube 43 only conducts from the display tube 43 to the external environment, external gas cannot enter the display tube 43 through this one-way valve, so that the detection liquid extruded during the test will not flow back into the plastic suction box.

[0056] Embodiment 2

[0057] As Figure 3 、Figure 4 and Figure 11 As shown, on the basis of Example 1, the present invention provides a technical solution: preferably, the walking simulation component includes a U-shaped frame 3, two eccentric shafts 4 are rotatably connected between the inner sides of the U-shaped frame 3, both ends of the eccentric shaft 4 extend to the two sides of the U-shaped frame 3 respectively and are fixedly connected with a turning handle 6, a vertical plate 7 is rotatably connected between the turning handles 6 located on the same side of the U-shaped frame 3, and a pedal 8 is fixedly connected to the bottom of the vertical plate 7 for increasing the contact area with the supporting surface during walking, thereby increasing the walking stability, and the pedal 8 is placed on one of the belt conveyor lines 40; a support beam 9 is fixedly connected to the top of the U-shaped frame 3, and a supporting arm 10 is fixedly connected to both sides of the support beam 9, and a plurality of hooks for hanging bags 11 are fixedly connected to the bottom of the supporting arm 10; a motor 5 is fixedly installed on one side of the inner wall of the U-shaped frame 3, and the output end of the motor 5 is connected to the two eccentric shafts 4 through a synchronous belt and a synchronous wheel transmission.

[0058] In this embodiment, by controlling the motor 5 to work, the two eccentric shafts 4 are driven to rotate, thereby driving the handle 6 to rotate. The handles 6 located on both sides of the U-shaped frame 3 are parallel to each other and in opposite directions (the eccentric shaft is not connected to the center of the handle 6, and the handles 6 on both sides are symmetrically distributed around the center). The two handles 6 on each side jointly drive a vertical plate 7 to rotate around the eccentric shaft 4, and the rotation process is vertically downward. The two vertical plates 7 cooperate to simulate walking movements. There are multiple groups of hooks symmetrically arranged on the supporting arm 10 to facilitate simultaneous testing of multiple groups of experiments. The test process can be compared by setting variables: the test liquid temperature is the same but the blister box material is different and the blister box material is the same but the test liquid temperature is different.

[0059] However, if the above structure is only set to simulate walking action, after a period of operation, the above structure will produce a certain displacement. In order to reduce the span of the overall setting of the device, the above structure is set on one of the belt conveyor lines 40, so that the walking simulation process is carried out similar to a treadmill.

[0060] like Figure 3 , Figure 4 and Figure 10As shown, preferably, a fixing frame 12 is fixedly connected to the top of the belt conveyor line 40 where the walking simulation component is placed. Two anti - tipping frames 14 are fixedly connected to the top inside the fixing frame 12. The anti - tipping frame 14 is composed of two U - shaped plates arranged in parallel, and there is a gap between the two U - shaped plates. Two guide rods 15 are fixedly connected to the top of the support beam 9. The top ends of the two guide rods 15 respectively pass through the gaps on the two anti - tipping frames 14 and are fixedly connected to a mounting plate 16. Oblique plates 17 are symmetrically and fixedly connected to both sides of the guide rod 15. A sliding rod 18 is slidably connected to one side of the oblique plate 17. One end of the sliding rod 18 is fixedly connected to a pressing head 21. The end of the sliding rod 18 far from the pressing head 21 extends to the other side of the oblique plate 17 and is fixedly connected to a pressing rod 19. A cushion plate 23 is fixedly connected to the outer side of the sliding rod 18. A spring 20 is sleeved on the outer part of the sliding rod 18 between the cushion plate 23 and the oblique plate 17; Pressure sensors 22 are fixedly installed on both sides of the mounting plate 16; An iron plate 13 is fixedly connected to the top inside the fixing frame 12. An electromagnet 24 used in cooperation with the iron plate 13 is fixedly installed on the top of the mounting plate 16.

[0061] Since the test simulation process is to simulate carrying the holding bag 11 and performing a walking action, and since the suction - plastic box contains the detection liquid and has a certain weight, during the action process, the holding bag 11 shakes, making the walking structure at risk of tipping over.

[0062] In this embodiment, by setting the anti - tipping frame 14 composed of two parallel U - shaped plates, the guide rod 15 cannot tip laterally in the walking direction during the walking process (but there is still a possibility of tipping forward and backward in the walking direction); and pressing rods 19 are symmetrically arranged on both sides of the guide rod 15. When the walking simulation component is in a correct posture, the support beam 9 is in a horizontal state. Correspondingly, the pressing rod 19 does not contact the inside of the anti - tipping frame 14; when the walking simulation component tips forward or backward, the pressing rod 19 in the tipping direction contacts the anti - tipping frame 14 and provides auxiliary support to prevent tipping; on the other hand, when an inclination that cannot be automatically corrected occurs, the pressing rod 19 bears the inclination pressure of the component, pushes the sliding rod 18 to move, and compresses the spring 20. On the one hand, the spring 20 provides buffering, and on the other hand, it can provide the elastic force for self - righting; when the inclination reaches a certain degree, the sliding rod 18 pushes the pressing head 21 to press the pressure sensor 22. When the pressure sensor 22 detects a pressure change and transmits it to the external controller, the controller controls the electromagnet 24 to be energized, so as to generate a magnetic force relative to the iron plate 13 and provide an upward force for the walking simulation component to assist its self - righting.

[0063] Embodiment 3

[0064] As Figure 5 and Figure 6As shown, on the basis of Example 2, the present invention provides a technical solution: preferably, the driving simulation component includes a vehicle body 25, four wheels 26 are arranged on the vehicle body 25, two belt strips 27 are fixedly connected to the outer side of the conveyor belt of the belt conveyor line 40 on which the driving simulation component is placed, and a mounting frame 50 is fixedly connected to the top of the belt conveyor line 40, and the wheels 26 are placed on the belt strips 27; a limit rod 29 is fixedly connected between the inner sides of the vehicle body 25, and two limit frames 30 are fixedly connected to one side of the mounting frame 50, and a strip groove 31 is opened in the middle of the limit frames 30, and the two limit frames 30 are respectively in contact with the two sides of the inner wall of the vehicle body 25, and the limit rod 29 passes through the two strip grooves 31 at the same time; a bracket 28 is fixedly connected to the top of the vehicle body 25, and a plurality of hooks are also symmetrically arranged on both sides of the bracket 28.

[0065] In this embodiment, by controlling the operation of the belt conveyor line 40, the wheels 26 placed on the conveyor belt rotate along with the belt strip 27, and the vehicle body 25 is restrained by the limit rod 29 and the limit frame 30 and cannot move, but the vehicle body 25 presents a state similar to riding, thereby being able to simulate the state in the riding state; after a period of testing, the deformation in the simulation process can be reflected by observing the amount of testing liquid in the testing component squeezed upward along the suction tube 41.

[0066] like Figure 6 and Figure 12 As shown, preferably, a support plate 34 is fixedly connected to one side of the vehicle body 25, a screw rod 35 is threadedly connected to the top of the support plate 34, the bottom of the screw rod 35 extends to the bottom of the support plate 34 and is rotatably connected to a frame plate 36, a pressure roller 37 is rotatably connected between the inner sides of the frame plate 36, two guide rods 38 are symmetrically slidably connected to the top of the support plate 34, the bottoms of the guide rods 38 extend to the bottom of the support plate 34 and are fixedly connected to the frame plate 36, a protrusion 32 is provided on the conveyor belt connected to the belt strip 27, the pressure roller 37 is in contact with the protrusion 32, and a plurality of round beads 33 are fixedly connected to the outer surface of the protrusion 32.

[0067] However, in real life, the road surface is usually not as smooth as expected and is often bumpy. Therefore, the above simulated driving alone cannot objectively reflect the riding environment.

[0068] In this embodiment, a protrusion 32 and a ball 33 are provided on the conveyor belt. When a bumpy environment needs to be simulated, the screw 35 is rotated to move downward relative to the support plate 34, and the frame plate 36 is driven to move downward until the pressure roller 37 contacts the protrusion 32. During the operation of the belt conveyor line 40, the protrusion 32 moves along with the conveyor belt, so that the ball 33 continuously squeezes the pressure roller 37, thereby causing the vehicle body 25 to shake continuously.

[0069] Example 4

[0070] likeFigure 1 and Figure 7 As shown in Figure 7 , on the basis of Embodiment 3, the present invention provides a technical solution: Preferably, the extrusion component includes a platform plate fixedly connected inside the frame 1, and the top of the platform plate is fixedly connected to form a gantry 47. The top of the gantry 47 is fixedly connected with a plurality of hydraulic cylinders 48. The output end of the hydraulic cylinder 48 extends into the gantry 47 and is fixedly connected with a pressing frame 49. A through groove is opened at the bottom of the pressing frame 49.

[0071] Based on this solution, by setting the detection component to reflect the process of the plastic suction box being deformed under pressure. Based on the above design, it is still applicable when applied to a traditional detection device, and can more intuitively feedback the deformation situation.

[0072] In this embodiment, by setting the extrusion component, the bearing capacity of the plastic suction box can be directly detected. Specifically, after the detection component is installed, the through groove at the bottom of the pressing frame 49 is aligned with the detection component and pressed down (during the pressing process, the box cover fits more tightly with the plastic suction box, and the sealing performance is better) until the plastic suction box breaks or collapses. By observing the magnitude of the applied force when it breaks or collapses, the compressive capacity limit of the plastic suction box can be obtained. And according to the amount of the detection liquid extruded upward from the suction pipe 41, the pressure magnitude when the plastic suction box reaches the breakage or causes its box cover to come off (large deformation occurs) can be reflected: during the pressure application, the plastic suction box deforms but the internal gas does not leak, causing the detection liquid to be squeezed into the suction pipe 41 until breakage or the box cover comes off. Subsequent extrusion will not cause the detection liquid to be extruded continuously, and the amount of the detection liquid extruded is the deformation amount of the plastic suction box caused by the pressure when it reaches breakage or the box cover comes off.

[0073] Such as Figure 8 and Figure 9 As shown in Figure 9 , preferably, the suction pipe 41 is provided with a flexible hose. One end of the suction pipe 41 away from the sampling pipe 46 is connected with a counterweight ball 44. A through hole communicating with the suction pipe 41 is opened inside the counterweight ball 44.

[0074] Since the above extrusion component is needed for detection, during the detection process, the plastic suction box needs to bear the pressure from top to bottom, and the suction pipe 41 needs to reserve a displacement amount in the vertical direction and cannot be too short, otherwise it cannot contact the detection liquid;

[0075] In this embodiment, by setting the suction pipe 41 as a flexible hose and arranging a counterweight ball 44 at the end, the suction pipe 41 can provide sufficient displacement while ensuring that the end is located in the detection liquid.

[0076] In addition, during the extrusion process, when the plastic suction box leaks due to being squeezed, the detection liquid cannot be collected by the above detection component, thereby reflecting the problem of the sealing performance of the plastic suction box during the pressure application process.

[0077] The present invention also provides a method for detecting the compressive resistance of a food-grade environmentally friendly plastic suction box, including the following steps:

[0078] S1: Punch a hole in the center of the lid of the blister box and install the detection component at the hole position in the center of the lid;

[0079] S2: Add the detection liquid into the blister box to be detected and cover the lid with the detection component installed;

[0080] Among them, the detection liquid is selected as a liquid with color, and a detection liquid with a suitable temperature is selected according to the test requirements to form a control group;

[0081] S3: Wind the plastic wrap between the blister box and the lid, and the number of winding turns is more than two;

[0082] Since the detection component needs to be driven by the change of the internal pressure of the blister box during extrusion during the detection process, the blister box for food has a certain sealing performance after the lid is covered. Then, by winding the plastic wrap at the sealing position, the sealing performance is increased and the situation that the lid of the blister box is separated from the blister box itself is reduced;

[0083] S4: Place the blister box in the environment to be simulated for testing, and observe the amount of detection liquid collected by the detection component within the set time;

[0084] Among them, the detection environment includes a driving simulation environment, a walking simulation environment, and a stacking pressure environment.

[0085] The above has generally described the present invention in detail. However, based on the present invention, some modifications or improvements can be made, which are obvious to those of ordinary skill in the technical field. Therefore, the modifications or improvements without departing from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A food-grade environmentally friendly blister box compression testing system, characterized in that: include: A frame (1), wherein two belt conveyor lines (40) are installed inside the frame (1); A punching device (39) for punching holes in the plastic blister box cover; The detection component is installed at the punching position on the blister box cover and is used to detect the deformation of the blister box when it is squeezed; Walking simulation component, used to simulate the mutual squeezing environment of blister boxes in walking state; Driving simulation components, used to simulate the vehicle driving state blister boxes squeeze each other environment; A plurality of containing bags (11) are provided and are respectively hung on the driving simulation component and the walking simulation component, and are used to contain two plastic blister boxes side by side; An extrusion component is used to apply a pressure environment to the blister box; The walking simulation component and the driving simulation component are respectively placed on the conveyor belts of two belt conveyor lines (40); The detection component comprises a detection plug (2) and a movable pressing ring (45); the lower part of the detection plug (2) is an inner pressing part (201), the middle part is a screwing part (202), and the upper part is a screwing part (203); the outer wall of the screwing part (202) is threaded, and the movable pressing ring (45) is threadedly connected to the outer side of the screwing part (202); the inner pressing part (201) and the movable pressing ring (45) are both fixedly connected to a sealing ring on one side thereof; a sampling tube (46) and an air inlet pipe (42) are fixedly plugged into the interior of the detection plug (2). ), the sampling tube (46) and the air inlet pipe (42) both penetrate the detection plug (2) from top to bottom; the top of the sampling tube (46) is connected to a display tube (43) via a detachable pipe joint; the top of the display tube (43) is fixedly connected to a one-way valve; the bottom of the sampling tube (46) is fixedly connected to a suction tube (41); the display tube (43) is configured as a transparent tube and has a scale on its outer wall; the bottom of the air inlet pipe (42) is fixedly connected to a one-way valve; and the rotary grip (203) is configured as a prism structure with equal bottom side lengths.

2. The food-grade environmentally friendly blister box compression testing system according to claim 1 is characterized by: The walking simulation component comprises a U-shaped frame (3), two eccentric shafts (4) are rotatably connected between the inner sides of the U-shaped frame (3), two ends of the eccentric shafts (4) respectively extend to the two sides of the U-shaped frame (3) and are fixedly connected to a rotating handle (6), a vertical plate (7) is rotatably connected between the rotating handles (6) located on the same side of the U-shaped frame (3), the bottoms of the vertical plates (7) are fixedly connected to a pedal (8), and the pedal (8) is placed on one of the belt conveyor lines (40); a support beam (9) is fixedly connected to the top of the U-shaped frame (3), a material support arm (10) is fixedly connected to both sides of the support beam (9), and a plurality of hooks for hanging bags (11) are fixedly connected to the bottom of the material support arm (10); a motor (5) is fixedly installed on one side of the inner wall of the U-shaped frame (3), and the output end of the motor (5) is connected to the two eccentric shafts (4) through a synchronous belt and a synchronous wheel transmission.

3. The food-grade environmentally friendly blister box compression testing system according to claim 2 is characterized by: The top of the belt conveyor line (40) on which the walking simulation component is placed is fixedly connected to a fixed frame (12), and the top of the inner side of the fixed frame (12) is fixedly connected to two anti-fall frames (14), and the anti-fall frames (14) are composed of two parallel U-shaped plates, and there is a gap between the two U-shaped plates. The top of the support beam (9) is fixedly connected to two guide rods (15), and the top ends of the two guide rods (15) respectively pass through the gaps on the two anti-fall frames (14) and are fixedly connected to a mounting plate (16). The two sides of the guide rods (15) are symmetrically fixedly connected to inclined plates (17), and one side of the inclined plate (17) is slidably connected to a sliding rod (18). One end of the slide bar (18) is fixedly connected to a pressure head (21), one end of the slide bar (18) away from the pressure head (21) extends to the other side of the inclined plate (17) and is fixedly connected to a pressure rod (19), the outer side of the slide bar (18) is fixedly connected to a pad (23), and a spring (20) is sleeved outside the slide bar (18) and located between the pad (23) and the inclined plate (17); pressure sensors (22) are fixedly installed on both sides of the mounting plate (16); the top of the inner side of the fixing frame (12) is fixedly connected to an iron plate (13), and the top of the mounting plate (16) is fixedly installed with an electromagnet (24) used in conjunction with the iron plate (13).

4. The food-grade environmentally friendly blister box compression testing system according to claim 3 is characterized by: The driving simulation component comprises a vehicle body (25), on which four wheels (26) are arranged; two belt strips (27) are fixedly connected to the outer side of the conveyor belt of the belt conveyor line (40) on which the driving simulation component is placed; a mounting frame (50) is fixedly connected to the top of the belt conveyor line (40), and the wheels (26) are placed on the belt strips (27); a limiting rod (29) is fixedly connected to the inner side of the vehicle body (25); two limiting frames (30) are fixedly connected to one side of the mounting frame (50); a strip groove (31) is opened in the middle of each limiting frame (30); the two limiting frames (30) are respectively in contact with two sides of the inner wall of the vehicle body (25), and the limiting rod (29) passes through the two strip grooves (31) at the same time; a bracket (28) is fixedly connected to the top of the vehicle body (25), and a plurality of hooks are symmetrically arranged on both sides of the bracket (28).

5. The food-grade environmentally friendly blister box compression testing system according to claim 4 is characterized by: A support plate (34) is fixedly connected to one side of the vehicle body (25); a screw rod (35) is threadedly connected to the top of the support plate (34); the bottom of the screw rod (35) extends to the bottom of the support plate (34) and is rotatably connected to a frame plate (36); a pressure roller (37) is rotatably connected between the inner sides of the frame plate (36); two guide rods (38) are symmetrically slidably connected to the top of the support plate (34); the bottoms of the guide rods (38) extend to the bottom of the support plate (34) and are fixedly connected to the frame plate (36); a protrusion (32) is provided on the conveyor belt connected to the belt strip (27); the pressure roller (37) is in contact with the protrusion (32); and a plurality of round beads (33) are fixedly connected to the outer surface of the protrusion (32).

6. The food-grade environmentally friendly blister box compression testing system according to claim 5, characterized in that: The extrusion component comprises a platform plate fixedly connected to the inside of the frame (1); the top of the platform plate is fixedly connected to a gantry (47); the top of the gantry (47) is fixedly connected to a plurality of hydraulic cylinders (48); the output ends of the hydraulic cylinders (48) extend to the inside of the gantry (47) and are fixedly connected to a pressing frame (49); a through groove is provided at the bottom of the pressing frame (49).

7. The food-grade environmentally friendly blister box compression testing system according to claim 6, characterized in that: The suction pipe (41) is provided with a hose, and one end of the suction pipe (41) away from the sampling tube (46) is connected to a weight ball (44), and a through hole communicating with the suction pipe (41) is provided inside the weight ball (44).

8. A method for testing the compression resistance of food-grade environmentally friendly blister boxes, characterized in that: The food-grade environmentally friendly blister box compression test system applicable to any one of claims 1 to 7 above comprises the following steps: S1: Punch a hole in the center of the cover of the blister box and install the detection component on the hole in the center of the cover; S2: Add the test liquid to the blister box to be tested, and cover the box with the test components installed; S3: Wrap the plastic wrap between the blister box and the lid, with the number of wrappings being more than two; S4: Place the blister box in the environment to be simulated for testing, and observe the amount of test liquid collected by the test component within the set time.

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