An online compressive strength detection system and method for a food packaging box

Abstract

The present invention relates to the technical field of compressive resistance of packaging boxes, and discloses an on-line compressive resistance detection system and method for food packaging boxes, including a support unit, a blocking unit, a discharging unit and a detection unit. By providing a blocking unit, the driving motor drives the turntable to rotate, the inner groove on the turntable is offset from the position of the ejector rod, the turntable squeezes the ejector rod and the synchronous plate to slide outward, the synchronous plate drives the swing arm to swing, the swing arm rotates and drives the fence to rotate at the same time, and the fence rotates onto the conveyor belt. At this time, the packaging boxes transported on the conveyor belt are intercepted by the fence, ensuring smooth discharging at the current station, and the discharged packaging boxes will not interfere with the packaging boxes on the conveyor belt, ensuring the smooth transportation of the packaging boxes, making the safety of the packaging boxes higher during transportation. In addition, a discharging unit is installed to ensure that the packaging boxes smoothly enter the conveyor belt, and the packaging boxes will not get stuck on the receiving table, eliminating the need for manual post-treatment, making the compressive resistance detection more efficient.

Description

Technical Field

[0001] The present invention belongs to the technical field of compressive strength of packaging boxes, and specifically relates to an on-line compressive strength detection system and method for food packaging boxes. Background Art

[0002] Food packaging boxes play a crucial role in the storage, transportation and sales of food. Their compressive strength directly affects the safety and integrity of food during transportation and warehousing. If the compressive strength of the packaging box is insufficient, it is easy to deform or even break when stacked or squeezed by external forces, resulting in food damage, spoilage or scattering, bringing economic losses to enterprises and potentially affecting food safety.

[0003] After retrieval, CN116148032A discloses an on-line compressive strength detection system and method for food packaging boxes. In the present invention, a driving mechanism is arranged on the extension plate. Under the action of the driving mechanism, the sliding seat moves intermittently on the base. In cooperation with the pushing mechanism arranged between the base and the detection table, during use, the pushing mechanism pushes the detection table to the conveying table on one side, so that after the compressive strength detection of the food packaging box is completed, it can be automatically pushed out for conveying and then operated next time in a reset form. Before the next food packaging box is detected, the entire detection system does not need to stop working and can perform the next operation after resetting, effectively improving the efficiency of the compressive strength detection of food packaging boxes.

[0004] However, through the exploration of the inventor of the present invention, it is found that this technical solution still has at least the following defects:

[0005] In actual use, it is found that the conveying table is always in the state of conveying goods. Therefore, when the pushing operation is performed, the goods to be pushed may interfere with the goods conveyed inside the conveying table, and then the goods are crowded together, resulting in damage, and may even cause the goods to fall. And when the detection table drives the packaging box to move to the surface of the conveying table, due to the large friction at the bottom of the packaging box, the packaging box may not be smoothly conveyed along the conveying table, and the packaging box still remains on the surface of the detection table, affecting the normal use of the equipment.

[0006] In view of this, the present invention is specifically proposed. Summary of the Invention

[0007] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0008] An on-line compressive strength detection system for food packaging boxes includes a support unit, a blocking unit, a discharging unit and a detection unit.

[0009] The support unit includes a support table, and a conveyor belt is installed on the side wall of the support table;

[0010] The blocking unit includes a driving motor, which is installed below the support table. A turntable is installed at the output end of the driving motor. An inner groove is formed in the turntable. A ejector rod is slidably arranged on the side wall of the turntable. A synchronous plate is installed on the ejector rod. A fixed seat is installed on the support table. A fence is rotatably installed on the fixed seat, and the fence transversely blocks the conveyor belt. A rocker arm is installed at the rotation center of the fence. The surface of the rocker arm is slidably connected to the surface of the synchronous plate, and the synchronous plate slides horizontally at the bottom of the support table;

[0011] The discharging unit includes an adjusting roller, which is connected to the rotation center of the turntable. A spiral groove is formed in the adjusting roller. The end of the spiral groove is connected to a blocking groove. The central angle corresponding to the blocking groove is the same as the central angle corresponding to the inner groove. An adjusting slider is slidably arranged on the spiral groove. A vertical plate is installed on the adjusting slider. A receiving table is installed at the top of the vertical plate. The receiving table is slidably connected to the support table. A push plate is slidably arranged on the receiving table. A synchronous bracket is installed at the bottom of the push plate. A synchronous slider is installed at the bottom of the synchronous bracket. The side wall of the synchronous slider is attached to the side wall of the vertical plate. A T-shaped guide rail is movably inserted into the synchronous slider. A positioning plate is rotatably installed on the T-shaped guide rail. The positioning plate corresponds to a block installed inside the synchronous slider. A U-shaped bracket is installed on the positioning plate. A push rod is slidably arranged on the U-shaped bracket, and the push rod is slidably arranged at the bottom of the T-shaped guide rail. A pressing plate is installed at the end of the push rod, and the pressing plate corresponds to the side wall of the adjusting slider;

[0012] The detection unit includes a compressive detector, which is located above the receiving table.

[0013] As a preferred embodiment of the present invention, four columns are installed at the bottom of the support table. A cross beam is installed between adjacent columns. A bearing plate is installed on the side wall of the support table. Support legs are installed at the bottom of the bearing plate. Cross ribs are installed on the support legs. A gantry bracket is installed on the top of the bearing plate. The bottom of the gantry bracket is connected to the compressive detector.

[0014] As a preferred embodiment of the present invention, a fixing frame is installed at the bottom of the support table. The side wall of the fixing frame is connected to the outer shell of the driving motor. A synchronous shaft is installed through the fixing frame. One end of the synchronous shaft is connected to the output shaft of the driving motor, and the other end of the synchronous shaft is connected to the rotation center of the turntable.

[0015] As a preferred embodiment of the present invention, a guide wheel is installed at the end of the ejector rod. The guide wheel is connected to the side wall of the turntable. A limiting rod is movably inserted through the inside of the synchronous plate. A limiting plate is installed at one end of the limiting rod. A limiting spring is sleeved on the limiting rod. One end of the limiting spring is clamped on the limiting plate, and the other end is clamped on the synchronous plate. A column is installed at the other end of the limiting rod.

[0016] As a preferred embodiment of the present invention, a clamping shaft is installed through the inside of the fixed seat. One end of the clamping shaft is connected to the rotation center of the railing plate, and the other end is connected to the rotation center of the rocker arm. A strip-shaped groove is formed on the surface of the rocker arm. A sliding rod is slidably arranged inside the strip-shaped groove. The sliding rod is connected to the synchronous plate.

[0017] As a preferred embodiment of the present invention, a through groove is formed on the material receiving table, and a notch is formed on the support table. The notch and the through groove correspond to each other. The vertical plate slides horizontally on the notch and vertically penetrates through the notch. The synchronous bracket is slidably connected to the through groove, and the synchronous bracket movably penetrates through the through groove and the notch.

[0018] As a preferred embodiment of the present invention, a guide rod is installed on the fixed frame. A protrusion is slidably arranged on the guide rod. The protrusion is connected to the synchronous slider. A guide spring is sleeved on the guide rod. One end of the guide spring is clamped on the fixed frame, and the other end is clamped on the protrusion. The side wall of the fixed frame is connected to the T-shaped guide rail. The T-shaped guide rail is communicated with the guide chute formed inside the synchronous slider, and clamping blocks are uniformly installed at the bottom of the guide chute.

[0019] As a preferred embodiment of the present invention, a positioning seat is installed at the bottom of the T-shaped guide rail. A positioning shaft is installed on the positioning seat. One end of the positioning shaft is connected to the positioning plate, and the positioning plate is in an inclined state. The other end of the positioning shaft is connected to the U-shaped bracket. A plug rod is slidably installed in the gap of the U-shaped bracket. The plug rod is connected to the push rod. A limiting seat is slidably installed on the side wall of the push rod. The limiting seat is installed at the bottom of the T-shaped guide rail.

[0020] As a preferred embodiment of the present invention, a positioning rod is installed on the side wall of the fixed frame. The positioning rod movably penetrates through the pressing plate, and a baffle is installed at the end of the positioning rod. The diameter of the baffle is larger than that of the positioning rod. A positioning spring is sleeved on the positioning rod. One end of the positioning spring is clamped on the pressing plate, and the other end is clamped on the side wall of the fixed frame.

[0021] As a preferred embodiment of the present invention, the detection method of an online compressive strength detection system for a food packaging box is as follows:

[0022] Step 1: Place the food packaging box on the surface of the material receiving table, and detect the compressive resistance of the food packaging box through a compressive detector;

[0023] Step 2: Start the driving motor, drive the turntable to rotate through the driving motor, the inner groove on the turntable is offset from the position of the ejector rod, the turntable squeezes the ejector rod and the synchronous plate to slide outward, the synchronous plate drives the rocker arm to swing, the rocker arm rotates and drives the baffle to rotate at the same time, the baffle rotates onto the conveyor belt, and the packaging boxes transported on the conveyor belt are intercepted by the baffle at this time, ensuring smooth unloading at the current station;

[0024] Step 3: The turntable drives the adjusting roller to rotate, and the adjusting slider on the adjusting roller slides from the blocking groove to the spiral groove. While sliding in the blocking groove, the rocker arm is in a rotating state at this time. When sliding to the spiral groove, the rocker arm is in a stationary state, and the spiral groove rotates to drive the adjusting slider to slide. The adjusting slider drives the material receiving table to move through the vertical plate, and the packaging boxes on the material receiving table are integrally moved onto the conveyor belt;

[0025] Step 4: During the movement of the material receiving table, the synchronous slider is pushed by the vertical plate to move on the T-shaped guide rail, ensuring that the push plate and the material receiving table slide synchronously. When the synchronous slider moves to the outermost end, the inclined positioning plate is clamped on the surface of the block at this time, and the positioning plate positions the whole synchronous slider at this time;

[0026] Step 5: As the spiral groove continues to rotate, the material receiving table that has moved to the unloading position starts to reset at this time, but the positioning plate is in a clamped state, and the push plate is in a stationary state at this time. Finally, a relative displacement occurs between the push plate and the material receiving table, ensuring that the packaging box smoothly enters the conveyor belt. When the material receiving table moves to the outermost end, the adjusting slider presses against the pressure plate, the pressure plate drives the push rod to move, the push rod pulls the U-shaped bracket to rotate, and the U-shaped bracket drives the positioning plate to rotate in the reverse direction, and the positioning plate separates from the block, and the push plate is pushed to reset.

[0027] The present invention has the following beneficial effects compared with the prior art:

[0028] By providing a blocking unit, the driving motor drives the turntable to rotate, the inner groove on the turntable is offset from the position of the ejector rod, the turntable squeezes the ejector rod and the synchronous plate to slide outward, the synchronous plate drives the rocker arm to swing, the rocker arm rotates and drives the baffle to rotate at the same time, the baffle rotates onto the conveyor belt, and the packaging boxes transported on the conveyor belt are intercepted by the baffle at this time, ensuring smooth unloading at the current station. The unloaded packaging boxes will not interfere with the packaging boxes on the conveyor belt, ensuring that the packaging boxes can be smoothly transported.

[0029] By providing a discharging unit, the turntable drives the adjusting roller to rotate. The adjusting slider on the adjusting roller slides from the blocking groove to the spiral groove. While sliding in the blocking groove, the rocker arm is in a rotating state at this time. When sliding to the spiral groove, the rocker arm is in a static state, and the rotation of the spiral groove drives the adjusting slider to slide. The adjusting slider drives the receiving table to move through the vertical plate, moving the entire packaging box on the receiving table onto the conveyor belt. At this time, the packaging box is synchronously located above the conveyor belt. During the movement of the receiving table, the vertical plate pushes the synchronous slider to move on the T-shaped guide rail to ensure that the pushing plate and the receiving table slide synchronously. When the synchronous slider moves to the extreme end, at this time, the inclined positioning plate is clamped on the surface of the block, and the positioning plate positions the entire synchronous slider. As the spiral groove continues to rotate, the receiving table that has moved to the discharging position starts to reset, but the positioning plate is in a clamped state, and the pushing plate is in a static state at this time. Finally, a relative displacement occurs between the pushing plate and the receiving table, ensuring that the packaging box smoothly enters the conveyor belt and the packaging box will not get stuck on the receiving table, making the detection efficiency higher.

[0030] The following further describes in detail the specific implementation manners of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In the drawings:

[0032] Figure 1 is a three-dimensional structural schematic diagram of an on-line compressive strength detection system and method for a food packaging box;

[0033] Figure 2 is a side structural schematic diagram of an on-line compressive strength detection system and method for a food packaging box;

[0034] Figure 3 is an on-line compressive strength detection system and method for a food packaging box Figure 2 magnified view at A;

[0035] Figure 4 is a partial structural schematic Figure 1 ;

[0036] Figure 5 is a partial structural schematic Figure 2 ;

[0037] Figure 6 is an on-line compressive strength detection system and method for a food packaging box Figure 5 magnified view at B;

[0038] Figure 7 is a partial cross-sectional view of an on-line compressive strength detection system and method for a food packaging box;

[0039] Figure 8For an online compressive strength detection system and method of a food packaging box Figure 7 Enlarged view at position C in

[0040] Figure 9 For an online compressive strength detection system and method of a food packaging box Figure 7 Enlarged view at position D in

[0041] Figure 10 Structural diagram of a synchronous slider for an online compressive strength detection system and method of a food packaging box.

[0042] In the figure:

[0043] 100, support unit; 101, support platform; 1011, column; 1012, cross beam; 1013, notch;

[0044] 200, blocking unit; 201, drive motor; 2011, synchronous shaft; 202, turntable; 2021, inner groove; 203, synchronous plate; 2031, ejector rod; 2032, guide wheel; 2033, limit rod; 2034, limit plate; 2035, limit spring; 204, railing; 2041, fixed seat; 2042, clamping shaft; 2043, rocker arm; 2044, strip groove; 2045, slide bar;

[0045] 300, unloading unit; 301, adjusting roller; 3011, spiral groove; 3012, blocking groove; 3013, adjusting slider; 3014, fixed bracket; 302, vertical plate; 3021, receiving table; 3022, through groove; 303, synchronous slider; 3031, synchronous support; 3032, push plate; 3033, protrusion; 3034, guide rod; 3035, guide spring; 304, T-shaped guide rail; 3041, guide chute; 305, positioning plate; 3051, U-shaped bracket; 3052, positioning shaft; 3053, positioning seat; 3054, clamping block; 306, push rod; 3061, limit seat; 3062, insertion rod; 3063, pressing plate; 3064, positioning rod; 3065, positioning spring; 3066, baffle;

[0046] 400, detection unit; 401, compressive strength detector; 402, gantry bracket; 4021, bearing plate; 4022, support leg; 4023, cross rib;

[0047] 500, conveyor belt. Specific implementation mode

[0048] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments in conjunction with the accompanying drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention.

[0049] Embodiment 1:

[0050] As Figures 1 to 10 shown, an online compressive strength detection system for a food packaging box includes a support unit 100, a blocking unit 200, a discharging unit 300, and a detection unit 400.

[0051] The support unit 100 includes a support table 101, and a conveyor belt 500 is installed on the side wall of the support table 101;

[0052] The blocking unit 200 includes a driving motor 201, the driving motor 201 is installed below the support table 101, a turntable 202 is installed at the output end of the driving motor 201, an inner groove 2021 is formed in the turntable 202, a top rod 2031 is slidably arranged on the side wall of the turntable 202, a synchronous plate 203 is installed on the top rod 2031, a fixed seat 2041 is installed on the support table 101, a barrier plate 204 is rotatably installed on the fixed seat 2041, and the barrier plate 204 transversely blocks the conveyor belt 500. A rocker arm 2043 is installed at the rotation center of the barrier plate 204, the surface of the rocker arm 2043 is slidably connected to the surface of the synchronous plate 203, and the synchronous plate 203 slides horizontally at the bottom of the support table 101; By driving the turntable 202 to rotate through the driving motor 201, the positions of the inner groove 2021 on the turntable 202 and the top rod 2031 are offset, the turntable squeezes the top rod 2031 and the synchronous plate 203 to slide outward, the synchronous plate 203 drives the rocker arm 2043 to swing, the rocker arm 2043 rotates and drives the barrier plate 204 to rotate at the same time, and the barrier plate 204 rotates onto the conveyor belt 500. At this time, the packaging boxes transported on the conveyor belt 500 are intercepted by the barrier plate 204, ensuring smooth discharging at the current station;

[0053] The unloading unit 300 includes an adjusting roller 301, which is connected to the rotation center of the turntable 202. A spiral groove 3011 is formed on the adjusting roller 301, and a blocking groove 3012 is connected to the end of the spiral groove 3011. The central angle corresponding to the blocking groove 3012 is the same as the central angle corresponding to the inner groove 2021. An adjusting slider 3013 is slidably arranged on the spiral groove 3011. A vertical plate 302 is installed on the adjusting slider 3013, and a receiving table 3021 is installed on the top of the vertical plate 302. The receiving table 3021 is slidably connected to the support table 101. A push plate 3032 is slidably arranged on the receiving table 3021. A synchronous bracket 3031 is installed at the bottom of the push plate 3032, and a synchronous slider 303 is installed at the bottom of the synchronous bracket 3031. The side wall of the synchronous slider 303 is in mutual contact with the side wall of the vertical plate 302. A T-shaped guide rail 304 is movably inserted into the synchronous slider 303. A positioning plate 305 is rotatably installed on the T-shaped guide rail 304. The positioning plate 305 corresponds to a clamping block 3054 installed inside the synchronous slider 303. A U-shaped bracket 3051 is installed on the positioning plate 305. A push rod 306 is slidably arranged on the U-shaped bracket 3051, and the push rod 306 is slidably arranged at the bottom of the T-shaped guide rail 304. A pressing plate 3063 is installed at the end of the push rod 306. The pressing plate 3063 corresponds to the side wall of the adjusting slider 3013; the turntable 202 drives the adjusting roller 301 to rotate, and the adjusting slider 3013 on the adjusting roller 301 slides from the blocking groove 3012 to the spiral groove 3011. While the adjusting slider 3013 slides in the blocking groove 3012, at this time, the rocker arm 2043 is in a rotating state. When the adjusting slider 3013 slides to the spiral groove 3011, the rocker arm is in a stationary state, and the rotation of the spiral groove 3011 drives the adjusting slider 3013 to slide. The adjusting slider 3013 drives the receiving table 3021 to move through the vertical plate 302, and the whole packaging box on the receiving table 3021 is moved onto the conveyor belt 500; during the movement of the receiving table 3021, the vertical plate 302 is used to push the synchronous slider 303 to move on the T-shaped guide rail 304 to ensure that the push plate 3032 and the receiving table 3021 slide synchronously. When the synchronous slider 303 moves to the most end, at this time, the inclined positioning plate 305 is clamped on the surface of the clamping block 3054, and at this time, the positioning plate 305 positions the whole synchronous slider; with the continuous rotation of the spiral groove 3011, at this time, the receiving table 3021 that has moved to the unloading position starts to reset, but the positioning plate 305 is in a clamped state, and at this time, the push plate 3032 is in a stationary state. Finally, a relative displacement occurs between the push plate 3032 and the receiving table 3021 to ensure that the packaging box smoothly enters the conveyor belt 500. When the receiving table 3021 moves to the most end, the adjusting slider 3013 presses against the pressing plate 3063, and the pressing plate 3063 drives the push rod 306 to move. The push rod 306 pulls the U-shaped bracket 3051 to rotate, and the U-shaped bracket 3051 drives the positioning plate 305 to rotate in the reverse direction. The positioning plate 305 is separated from the clamping block 3054, and the push plate 3032 is pushed to reset.

[0054] The detection unit 400 includes a compressive detector 401, and the compressive detector 401 is located above the material receiving table 3021. The compressive detection of the packaging box by the compressive detector 401 is a prior art, and its working principle will not be elaborated here.

[0055] As Figures 1 to 10 shown, in the specific implementation, four columns 1011 are installed at the bottom of the support table 101, cross beams 1012 are installed between adjacent columns 1011, a bearing plate 4021 is installed on the side wall of the support table 101, support legs 4022 are installed at the bottom of the bearing plate 4021, cross ribs 4023 are installed on the support legs 4022, and a gantry bracket 402 is installed on the top of the bearing plate 4021. The bottom of the gantry bracket 402 is connected to the compressive detector 401. Both the columns 1011 and the support legs 4022 play a supporting role, while the cross ribs 4023 and the cross beams 1012 ensure the stability of the support points.

[0056] As Figures 1 to 10 shown, further, a fixing frame 3014 is installed at the bottom of the support table 101. The side wall of the fixing frame 3014 is connected to the outer shell of the driving motor 201. A synchronous shaft 2011 is installed through the inside of the fixing frame 3014. One end of the synchronous shaft 2011 is connected to the output shaft of the driving motor 201, and the other end of the synchronous shaft 2011 is connected to the rotation center of the turntable 202. The driving motor 201 drives the synchronous shaft 2011 to rotate on the fixing frame 3014. Finally, the synchronous shaft 2011 can drive the turntable 202 to rotate. And when the synchronous shaft 2011 rotates, the synchronous shaft 2011 can drive the adjusting roller 301 to rotate.

[0057] Embodiment 2:

[0058] Based on the above embodiment, the difference from this embodiment is that: as Figures 1 to 10 shown, a guide wheel 2032 is installed at the end of the ejector rod 2031, and the guide wheel 2032 is connected to the side wall of the turntable 202. A limiting rod 2033 is movably inserted through the inside of the synchronous plate 203. A limiting plate 2034 is installed at one end of the limiting rod 2033. A limiting spring 2035 is sleeved on the limiting rod 2033. One end of the limiting spring 2035 is clamped on the limiting plate 2034, and the other end is clamped on the synchronous plate 203. The other end of the limiting rod 2033 is installed with a column 1011. As the turntable 202 rotates, the inner groove 2021 on the turntable 202 is offset from the position of the ejector rod 2031, and the guide wheel 2032 at the end of the ejector rod 2031 rolls on the side wall of the turntable 202. The turntable 202 squeezes the ejector rod 2031 and the synchronous plate 203 to slide outward. The synchronous plate 203 can slide on the limiting rod 2033, and the limiting spring 2035 on the limiting rod 2033 is compressed synchronously. The compressed limiting spring 2035 facilitates the later reset operation.

[0059] As Figures 1 to 10 shown, in the specific implementation, a clamping shaft 2042 is installed through the inside of the fixed seat 2041. One end of the clamping shaft 2042 is connected to the rotation center of the railing 204, and the other end of the clamping shaft 2042 is connected to the rotation center of the rocker arm 2043. A strip-shaped groove 2044 is formed on the surface of the rocker arm 2043, and a sliding rod 2045 is slidably arranged inside the strip-shaped groove 2044. The sliding rod 2045 is connected to the synchronous plate 203. When the synchronous plate 203 moves, the sliding rod 2045 on the synchronous plate 203 can slide in the strip-shaped groove 2044 of the rocker arm 2043. Then, the rocker arm 2043 drives the clamping shaft 2042 to rotate. The clamping shaft 2042 can rotate in the fixed seat 2041, and at the same time, the clamping shaft 2042 can drive the railing 204 to rotate. The railing 204 rotates onto the conveyor belt 500. At this time, the packaging boxes transported on the conveyor belt 500 are intercepted by the railing 204, ensuring that the current station can discharge materials smoothly without interference with the materials on the conveyor belt 500.

[0060] As Figures 1 to 10 shown, further, a through groove 3022 is formed on the material receiving table 3021, and a notch 1013 is formed on the support table 101. The notch 1013 and the through groove 3022 correspond to each other. The vertical plate 302 slides horizontally on the notch 1013, and the vertical plate 302 vertically penetrates the notch 1013. The synchronous support 3031 is slidably connected to the through groove 3022, and the synchronous support 3031 movably penetrates the through groove 3022 and the notch 1013.

[0061] Embodiment 3:

[0062] Based on the above embodiment, the difference from this embodiment is that: As Figures 1 to 10 shown, a guide rod 3034 is installed on the fixed frame 3014. A protrusion 3033 is slidably arranged on the guide rod 3034. The protrusion 3033 is connected to the synchronous slider 303. A guide spring 3035 is sleeved on the guide rod 3034. One end of the guide spring 3035 is clamped on the fixed frame 3014, and the other end of the guide spring 3035 is clamped on the protrusion 3033. The side wall of the fixed frame 3014 is connected to the T-shaped guide rail 304. The T-shaped guide rail 304 is communicated with a guide chute 3041 formed inside the synchronous slider 303, and clamping blocks 3054 are uniformly installed at the bottom of the guide chute 3041. During the movement of the material receiving table 3021, the synchronous slider 303 is pushed by the vertical plate 302 to move on the T-shaped guide rail 304, ensuring that the push plate 3032 and the material receiving table 3021 slide synchronously. The protrusion 3033 on the synchronous slider 303 can slide on the guide rod 3034, and the guide spring 3035 on the guide rod 3034 is compressed synchronously. The guide spring 3035 facilitates the later reset operation.

[0063] As shown Figures 1 to 10 In the specific implementation, a positioning seat 3053 is installed at the bottom of the T-shaped guide rail 304. A positioning shaft 3052 is installed on the positioning seat 3053. One end of the positioning shaft 3052 is connected to the positioning plate 305, and the positioning plate 305 is in an inclined state. The other end of the positioning shaft 3052 is connected to the U-shaped bracket 3051. A plug rod 3062 is slidably installed in the gap of the U-shaped bracket 3051. The plug rod 3062 is connected to the push rod 306. A limit seat 3061 is slidably installed on the side wall of the push rod 306, and the limit seat 3061 is installed at the bottom of the T-shaped guide rail 304. A positioning rod 3064 is installed on the side wall of the fixed frame 3014. The positioning rod 3064 passes through the pressure plate 3063 movably, and a baffle 3066 is installed at the end of the positioning rod 3064. The diameter of the baffle 3066 is larger than the diameter of the positioning rod 3064. A positioning spring 3065 is sleeved on the positioning rod 3064. One end of the positioning spring 3065 is clamped on the pressure plate 3063, and the other end is clamped on the side wall of the fixed frame 3014. When the receiving table 3021 moves to the rightmost side, the adjusting slider 3013 squeezes the pressure plate 3063, and the pressure plate 3063 will slide along the positioning rod 3064. The positioning spring 3065 on the positioning rod 3064 facilitates the later reset operation, and the baffle 3066 ensures that the positioning rod 3064 and the pressure plate 3063 will not separate. The pressure plate 3063 can drive the push rod 306 to move. The push rod 306 slides inside the limit seat 3061, and the plug rod 3062 at the end of the push rod 306 pulls the U-shaped bracket 3051 to rotate, and the U-shaped bracket 3051 drives the positioning plate 305 to rotate in the opposite direction. At this time, the positioning plate 305 is separated from the block 3054, and then the guide spring 3035 ensures that the push plate 3032 can be reset to the initial state, facilitating the subsequent continued use.

[0064] The present invention also discloses a detection method for an online compressive strength detection system of a food packaging box, and the steps are as follows:

[0065] Step 1: Place the food packaging box on the surface of the receiving table 3021, and detect the compressive strength of the food packaging box through the compressive strength detector 401;

[0066] Step 2: Start the driving motor 201, drive the turntable 202 to rotate through the driving motor 201. The inner groove 2021 on the turntable 202 is offset from the position of the ejector rod 2031. The turntable squeezes the ejector rod 2031 and the synchronous plate 203 to slide outward. The synchronous plate 203 drives the rocker arm 2043 to swing. While the rocker arm 2043 rotates, it drives the fence 204 to rotate. The fence 204 rotates onto the conveyor belt 500. At this time, the packaging boxes transported on the conveyor belt 500 are intercepted by the fence 204, ensuring smooth unloading at the current station;

[0067] Step 3: The turntable 202 drives the adjusting roller 301 to rotate. The adjusting slider 3013 on the adjusting roller 301 slides from the blocking groove 3012 to the spiral groove 3011. While sliding in the blocking groove 3012, the rocker arm 2043 is in a rotating state at this time. When it slides to the spiral groove 3011, the rocker arm is in a stationary state, and the rotation of the spiral groove 3011 drives the adjusting slider 3013 to slide. The adjusting slider 3013 drives the receiving table 3021 to move through the vertical plate 302, and the whole packaging box on the receiving table 3021 is moved onto the conveyor belt 500;

[0068] Step 4: During the movement of the receiving table 3021, the vertical plate 302 pushes the synchronous slider 303 to move on the T-shaped guide rail 304, ensuring that the push plate 3032 and the receiving table 3021 slide synchronously. When the synchronous slider 303 moves to the most end, at this time, the inclined positioning plate 305 is clamped on the surface of the block 3054, and at this time, the positioning plate 305 positions the whole synchronous slider;

[0069] Step 5: With the continuous rotation of the spiral groove 3011, the receiving table 3021 that has moved to the unloading position starts to reset at this time, but the positioning plate 305 is in a clamped state, and the push plate 3032 is in a stationary state at this time. Finally, a relative displacement occurs between the push plate 3032 and the receiving table 3021, ensuring that the packaging box smoothly enters the conveyor belt 500. When the receiving table 3021 moves to the most end, the adjusting slider 3013 squeezes the pressure plate 3063, and the pressure plate 3063 drives the push rod 306 to move. The push rod 306 pulls the U-shaped bracket 3051 to rotate, and the U-shaped bracket 3051 drives the positioning plate 305 to rotate in the reverse direction, and the positioning plate 305 separates from the block 3054, and then the push plate 3032 is pushed to reset.

[0070] The implementation principle of an online compressive strength detection system and method for a food packaging box in this embodiment is as follows:

[0071] Place the food packaging box on the surface of the receiving table 3021, and detect the compressive strength of the food packaging box through the compressive strength detector 401. The compressive strength detector 401 is a prior art, and its working principle will not be elaborated here.

[0072] Then the operator starts the driving motor 201, and the driving motor 201 drives the synchronous shaft 2011 to rotate on the fixed frame 3014. Finally, the synchronous shaft 2011 can drive the turntable 202 to rotate (the turntable 202 rotates clockwise, taking Figure 4 this as the reference, and for the initial device, the inner groove 2021 and the guide wheel 2032 are in contact).

[0073] As the turntable 202 rotates, the inner groove 2021 on the turntable 202 is offset from the position of the ejector rod 2031, and the guide wheel 2032 at the end of the ejector rod 2031 rolls on the side wall of the turntable 202. The turntable 202 presses the ejector rod 2031 and the synchronizing plate 203 to slide outward. The synchronizing plate 203 can slide on the limiting rod 2033, and the limiting spring 2035 on the limiting rod 2033 is synchronously compressed, facilitating the later reset operation through the compressed limiting spring 2035.

[0074] When the synchronizing plate 203 moves, the sliding rod 2045 on the synchronizing plate 203 can slide in the strip-shaped groove 2044 of the rocker arm 2043. Then, the rocker arm 2043 drives the clamping shaft 2042 to rotate. The clamping shaft 2042 can rotate in the fixed seat 2041, and at the same time, the clamping shaft 2042 can drive the fence plate 204 to rotate. The fence plate 204 rotates onto the conveyor belt 500. At this time, the packaging boxes transported on the conveyor belt 500 are intercepted by the fence plate 204, ensuring that the current station can discharge materials smoothly without interference with the materials on the conveyor belt 500.

[0075] After the synchronizing shaft 2011 rotates, the synchronizing shaft 2011 can drive the adjusting roller 301 to rotate. The adjusting slider 3013 on the adjusting roller 301 slides from the blocking groove 3012 to the spiral groove 3011. While the adjusting slider 3013 slides in the blocking groove 3012, at this time, the rocker arm 2043 is in the process of rotating to block the conveyor belt 500. When the adjusting slider 3013 slides into the spiral groove 3011, the rocker arm is in a stationary state, and the spiral groove 3011 rotates to drive the adjusting slider 3013 to slide left and right (taking Figure 7 ... as the reference). The adjusting slider 3013 drives the receiving table 3021 to move leftward first through the vertical plate 302, moving the packaging boxes on the receiving table 3021 onto the conveyor belt 500 as a whole.

[0076] During the movement of the receiving table 3021, the vertical plate 302 pushes the synchronizing slider 303 to move on the T-shaped guide rail 304, ensuring that the push plate 3032 and the receiving table 3021 slide synchronously. The protrusion 3033 on the synchronizing slider 303 can slide on the guide rod 3034, and the guide spring 3035 on the guide rod 3034 is synchronously compressed, facilitating the later reset operation through the guide spring 3035.

[0077] When the synchronizing slider 303 moves to the leftmost end, at this time, the inclined positioning plate 305 is clamped on the surface of the block 3054, and at this time, the positioning plate 305 positions the entire synchronizing slider;

[0078] When the material receiving table 3021 moves to the right, since the positioning plate 305 is in a clamped state, the pushing plate 3032 is in a stationary state at this time. Eventually, a relative displacement occurs between the pushing plate 3032 and the material receiving table 3021, and the pushing plate 3032 slides in the material receiving table 3021, and the pushing plate 3032 pushes the packaging box into the conveyor belt 500 smoothly.

[0079] When the material receiving table 3021 moves to the extreme right, the adjusting slider 3013 presses against the pressing plate 3063, and the pressing plate 3063 slides along the positioning rod 3064. The positioning spring 3065 on the positioning rod 3064 facilitates the later reset operation. The baffle 3066 ensures that the positioning rod 3064 and the pressing plate 3063 do not separate.

[0080] Among them, the pressing plate 3063 can drive the push rod 306. The push rod 306 slides inside the limit seat 3061, and the insertion rod 3062 at the end of the push rod 306 pulls the U-shaped bracket 3051 to rotate. The U-shaped bracket 3051 drives the positioning plate 305 to rotate in the reverse direction. At this time, the positioning plate 305 separates from the block 3054. Then, the guiding spring 3035 ensures that the pushing plate 3032 can be reset to the initial state, facilitating the subsequent continuous use.

Claims

1. An online compression resistance detection system for a food packaging box, comprising a supporting unit (100), a blocking unit (200), a discharging unit (300) and a detection unit (400), characterized in that: The support unit (100) comprises a support platform (101), and a conveyor belt (500) is installed on the side wall of the support platform (101); The blocking unit (200) comprises a driving motor (201), the driving motor (201) being mounted below the support platform (101), a turntable (202) being mounted at the output end of the driving motor (201), an inner groove (2021) being provided on the turntable (202), a top rod (2031) being slidably mounted on the side wall of the turntable (202), a synchronous plate (203) being mounted on the top rod (2031), a fixing seat (2041) being mounted on the support platform (101), a fence (204) being rotatably mounted on the fixing seat (2041), and the fence (204) being laterally blocked on the conveyor belt (500), a rocker arm (2043) being mounted at the rotation center of the fence (204), a surface of the rocker arm (2043) being slidably connected to a surface of the synchronous plate (203), and the synchronous plate (203) slidingly slides horizontally on the bottom of the support platform (101); The unloading unit (300) comprises an adjusting roller (301), the adjusting roller (301) being connected to the rotation center of the turntable (202), the adjusting roller (301) being provided with a spiral groove (3011), the end of the spiral groove (3011) being connected to a blocking groove (3012), the central angle of the blocking groove (3012) being the same as the central angle of the inner groove (2021), an adjusting slider (3013) being slidably arranged on the spiral groove (3011), a vertical plate (302) being mounted on the adjusting slider (3013), a material receiving platform (3021) being mounted on the top of the vertical plate (302), the material receiving platform (3021) being slidably connected to the support platform (101), a push plate (3032) being slidably arranged on the material receiving platform (3021), a synchronous bracket being mounted on the bottom of the push plate (3032) (3031), a synchronous slider (303) is installed at the bottom of the synchronous bracket (3031), the side wall of the synchronous slider (303) is in contact with the side wall of the vertical plate (302), a T-shaped guide rail (304) is movably inserted inside the synchronous slider (303), a positioning plate (305) is rotatably installed on the T-shaped guide rail (304), the positioning plate (305) and a block (3054) installed inside the synchronous slider (303) correspond to each other, a U-shaped bracket (3051) is installed on the positioning plate (305), a push rod (306) is slidably installed on the U-shaped bracket (3051), and the push rod (306) is slidably installed at the bottom of the T-shaped guide rail (304), a pressing plate (3063) is installed at the end of the push rod (306), and the pressing plate (3063) corresponds to the side wall of the adjusting slider (3013); A positioning seat (3053) is installed at the bottom of the T-shaped guide rail (304), a positioning shaft (3052) is installed on the positioning seat (3053), one end of the positioning shaft (3052) is connected to the positioning plate (305), and the positioning plate (3055) is in an inclined state, the other end of the positioning shaft (3052) is connected to the U-shaped bracket (3051), an insertion rod (3062) is slidably installed in the gap of the U-shaped bracket (3051), the insertion rod (3062) is connected to the push rod (306), and a limit seat (3061) is slidably installed on the side wall of the push rod (306), and the limit seat (3061) is installed at the bottom of the T-shaped guide rail (304); The detection unit (400) comprises a pressure resistance detector (401), and the pressure resistance detector (401) is located above the material receiving platform (3021).

2. The online compression testing system for food packaging boxes according to claim 1, characterized in that: Four columns (1011) are installed at the bottom of the support platform (101), and a crossbeam (1012) is installed between adjacent columns (1011). A bearing plate (4021) is installed on the side wall of the support platform (101), and supporting legs (4022) are installed at the bottom of the bearing plate (4021). Cross ribs (4023) are installed on the supporting legs (4022). A gantry bracket (402) is installed on the top of the bearing plate (4021), and the bottom of the gantry bracket (402) and the compression detector (401) are connected to each other.

3. The online compression testing system for food packaging boxes according to claim 1, characterized in that: A fixing frame (3014) is installed at the bottom of the support platform (101); a side wall of the fixing frame (3014) and a housing of a driving motor (201) are connected to each other; a synchronization shaft (2011) is installed through the interior of the fixing frame (3014); one end of the synchronization shaft (2011) is connected to an output shaft of the driving motor (201); and the other end of the synchronization shaft (2011) is connected to a rotation center of a turntable (202).

4. The online compression testing system for food packaging boxes according to claim 1, characterized in that: A guide wheel (2032) is installed at the end of the top rod (2031), and the guide wheel (2032) is connected to the side wall of the rotating disk (202). A limit rod (2033) is movably inserted and arranged inside the synchronous plate (203), and a limit plate (2034) is installed at one end of the limit rod (2033). A limit spring (2035) is sleeved on the limit rod (2033), and one end of the limit spring (2035) is clamped on the limit plate (2034), and the other end is clamped on the synchronous plate (203). A column (1011) is installed at the other end of the limit rod (2033).

5. The online compression testing system for food packaging boxes according to claim 1, characterized in that: A clamping shaft (2042) is installed inside the fixing seat (2041), one end of the clamping shaft (2042) is connected to the rotation center of the fence (204), and the other end of the clamping shaft (2042) is connected to the rotation center of the rocker arm (2043). A strip groove (2044) is provided on the surface of the rocker arm (2043), and a sliding rod (2045) is slidably arranged inside the strip groove (2044), and the sliding rod (2045) is connected to the synchronous plate (203).

6. The online compression testing system for food packaging boxes according to claim 1, characterized in that: The receiving platform (3021) is provided with a through slot (3022), the supporting platform (101) is provided with a notch (1013), the notch (1013) and the through slot (3022) correspond to each other, the vertical plate (302) slides horizontally on the notch (1013), and the vertical plate (302) vertically penetrates the notch (1013), the synchronous bracket (3031) is slidably connected to the through slot (3022), and the synchronous bracket (3031) movably penetrates the through slot (3022) and the notch (1013).

7. The online compression testing system for food packaging boxes according to claim 3, characterized in that: A guide rod (3034) is mounted on the fixing frame (3014), a protrusion (3033) is slidably arranged on the guide rod (3034), the protrusion (3033) is connected to the synchronous slider (303), a guide spring (3035) is sleeved on the guide rod (3034), one end of the guide spring (3035) is clamped on the fixing frame (3014), and the other end of the guide spring (3035) is clamped on the protrusion (3033), the side wall of the fixing frame (3014) and the T-shaped guide rail (304) are connected to each other, the T-shaped guide rail (304) and the guide groove (3041) provided inside the synchronous slider (303) are connected to each other, and the clamping block (3054) is evenly mounted on the bottom of the guide groove (3041).

8. The online compression testing system for food packaging boxes according to claim 3, characterized in that: A positioning rod (3064) is installed on the side wall of the fixing frame (3014), the positioning rod (3064) and the pressure plate (3063) are movably connected, and a baffle (3066) is installed on the end of the positioning rod (3064), the diameter of the baffle (3066) is larger than the diameter of the positioning rod (3064), and a positioning spring (3065) is sleeved on the positioning rod (3064), one end of the positioning spring (3065) is clamped on the pressure plate (3063), and the other end is clamped on the side wall of the fixing frame (3014).

9. An online compression test method for food packaging boxes, characterized in that: An online compression testing system for a food packaging box as claimed in any one of claims 1 to 8, wherein the testing method of the online compression testing system for a food packaging box comprises the following steps: Step 1: placing a food packaging box on the surface of the receiving table (3021), and testing the compression resistance of the food packaging box using a compression resistance detector (401); Step 2: Start the drive motor (201), and drive the turntable (202) to rotate through the drive motor (201), so that the inner groove (2021) on the turntable (202) and the position of the push rod (2031) are offset, and the turntable squeezes the push rod (2031) and the synchronous plate (203) to slide outward, and the synchronous plate (203) drives the rocker arm (2043) to swing, and the rocker arm (2043) rotates and drives the fence (204) to rotate at the same time, and the fence (204) rotates to the conveyor belt (500), and at this time, the packaging box transported on the conveyor belt (500) is intercepted by the fence (204), so as to ensure smooth unloading at the current station; Step 3: The turntable (202) drives the adjusting roller (301) to rotate, and the adjusting slider (3013) on the adjusting roller (301) slides from the blocking groove (3012) to the spiral groove (3011). While the blocking groove (3012) slides, the rocker arm (2043) is in a rotating state. When sliding to the spiral groove (3011), the rocker arm is in a stationary state, and the spiral groove (3011) rotates to drive the adjusting slider (3013) to slide. The adjusting slider (3013) drives the receiving platform (3021) to move through the vertical plate (302), and the packaging box on the receiving platform (3021) is moved as a whole to the conveyor belt (500); Step 4: During the movement of the receiving platform (3021), the synchronous slider (303) is pushed to move on the T-shaped guide rail (304) by the vertical plate (302) to ensure that the push plate (3032) and the receiving platform (3021) slide synchronously. When the synchronous slider (303) moves to the end, the inclined positioning plate (305) is engaged with the surface of the card block (3054), and the positioning plate (305) positions the synchronous slider as a whole; Step 5: As the spiral groove (3011) continues to rotate, the receiving platform (3021) moved to the unloading position begins to reset, but the positioning plate (305) is in a locked state. At this time, the push plate (3032) is in a stationary state. Finally, the push plate (3032) and the receiving platform (3021) are relatively displaced to ensure that the packaging box enters the conveyor belt (500) smoothly. When the receiving platform (3021) moves to the end, the adjustment slider (3013) and the pressure plate (3063) are squeezed, and the pressure plate (3063) drives the push rod (306) to move. The push rod (306) pulls the U-shaped bracket (3051) to rotate, and the U-shaped bracket (3051) drives the positioning plate (305) to rotate in the opposite direction. The positioning plate (305) is separated from the block (3054), and the push plate (3032) is pushed to reset.

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