Processing and transporting equipment for plastic packaging container for food

Abstract

The invention relates to the related technical field of plastic packaging container transportation, in particular to food plastic packaging container processing and transporting equipment which comprises a base, a conveying groove is formed in the upper portion of the base, and a protection cover is installed on the upper portion of the base; the conveying assembly is installed in the conveying groove. The working assembly is installed in the middle of the protective cover. The cleaning assembly is mounted on the right of the protective cover; the driving assembly is mounted behind the protective cover; the working assembly accurately adsorbs and fixes the packaging container on the conveying assembly, the working assembly detects the air tightness of the packaging container, the phenomenon that food in the packaging container leaks or goes bad in the using process is prevented, and the adsorption mechanism adsorbs the packaging container to rotate along with the packaging container; the inner side faces of the packaging containers are scraped and cleaned by the outer side faces of the cleaning frames, and the outer side faces of the packaging containers are cleaned by the cleaning assemblies, so that secondary pollution caused by mutual stacking of the packaging containers in the stacking process is prevented.

Description

Technical Field

[0001] The present application relates to the technical field related to the transportation of plastic packaging containers, and in particular to a processing and transportation device for plastic packaging containers for food. Background Art

[0002] With the development of the fast food era, food safety issues have attracted more and more attention from consumers, and the hygiene of food packaging has attracted even more attention. Plastic boxes for food are a common packaging material, which are widely used in the packaging of ready-to-eat foods, cooked foods, and fresh fruits and vegetables, ensuring the safety and freshness of foods during transportation and storage, and ensuring that they will not be contaminated.

[0003] The Chinese patent with publication number CN118004793A and name “A processing and transportation equipment for plastic packaging containers for food” includes a conveying mechanism, an adjusting mechanism is installed on one side of the top of the conveying mechanism, and an adjusting mechanism is installed on the top of the conveying mechanism near the cooling mechanism. The conveying mechanism includes a shell, and a control device is installed on the front of the shell. The present invention is conducive to the second electric lifting column driving the first slider to drive the plastic packaging container to keep the same speed as the conveyor belt by providing an adjusting mechanism and a monitoring system, ensuring that the plastic packaging container is placed in the original position on the conveyor belt surface after the position adjustment is completed, thereby avoiding the plastic packaging container moving to the normal moving surface of the conveyor belt. The present invention is conducive to automatic screening of deformed and damaged plastic packaging containers by providing an adjusting mechanism and a monitoring system.

[0004] The prior art of the above-mentioned patent can also realize the transportation of plastic packaging containers, but the existing transportation device cannot clean the packaging containers, and small particles of impurities may exist on the inner and outer sides of the packaging containers, affecting the overall quality of the packaging containers; secondly, the prior art cannot detect the sealing of the packaging containers when transporting the packaging containers, and the packaging containers may be damaged or cracked after injection molding. When the packaging containers are used subsequently, the food inside the packaging containers may leak or deteriorate, affecting the safety of use. Summary of the invention

[0005] In order to accurately realize the function of transporting plastic packaging containers, the present application provides a processing and transportation device for plastic packaging containers for food.

[0006] The present application provides a processing and transportation equipment for plastic packaging containers for food, which adopts the following technical solutions:

[0007] A processing and transportation device for plastic packaging containers for food comprises: a base which is in a rectangular structure, a conveying trough is provided on the upper part of the base, a protective cover is installed on the upper part of the base, and the protective cover is in a U-shaped structure; a conveying assembly is installed inside the conveying trough, and the conveying assembly is used to convey the packaging container at a uniform speed; a working assembly is installed in the middle part of the protective cover, and the working assembly is used to perform air tightness detection on the packaging container and clean and wipe the inner side surface; a cleaning assembly is installed on the right part of the protective cover, and the cleaning assembly is used to clean the outer side surface of the plastic box; a driving assembly is installed at the rear of the protective cover, and the driving assembly is used to drive the working assembly to rotate at a uniform speed.

[0008] Furthermore, the conveying assembly includes guide rollers and a conveyor belt. The guide rollers are evenly arranged on both side walls of the conveying trough, and the conveyor belt is arranged on the outer surface of the guide rollers.

[0009] Furthermore, the working assembly includes a working ring, a mounting frame, a fixed rod, a working unit and a limit plate. The working ring is arranged inside the protective cover, and mounting frames are fixedly installed at both ends of the working ring. The mounting frame is a circular ring structure with an L-shaped cross-section, and the middle part of the mounting frame is a hollow structure. A fixed rod is installed between the two mounting frames through a bearing, and one end of the fixed rod passes through the mounting frame and is fixedly connected to the driving assembly. The working units are evenly arranged on the working ring along its length direction, and the inner side of the working unit is fixedly installed on the fixed rod. A limit plate is arranged below the working ring, and the limit plate is fixedly installed on the inner wall of the protective cover. The limit plate is evenly provided with positioning grooves, and the positions of the positioning grooves correspond one by one to the working units on the working ring.

[0010] Furthermore, the working unit includes a limit ring, a limit mechanism, a sector gear, a sealing disk, a rubber airbag, a collecting mechanism, a cleaning rack, an adsorption mechanism and a limit piece. There are two limit rings, and the limit rings are fixedly mounted on the fixed rod. The two limit rings are connected by a limit piece. The limit rings are provided with a sliding groove, and the limit mechanism is slidably arranged inside the sliding groove. A sector gear cooperating with the limit mechanism is fixedly mounted on one of the limit rings. A sealing groove is provided on the outer wall of the working ring along its axial direction. The sealing disk is fixedly mounted in the sealing groove. The sealing disk is a circular ring structure with an L-shaped cross-section. An inwardly inclined clamping groove is provided on the side wall of the sealing disk. A rubber airbag is fixedly mounted in the clamping groove. A collecting groove is provided on the inner side of the sealing disk. The collecting mechanism is fixedly mounted in the collecting groove. A cleaning rack is evenly fixedly mounted inside the sealing disk. The limit mechanism passes through the sealing disk and an adsorption mechanism is installed.

[0011] Furthermore, a first protrusion extending downward is provided at the lower end of the limiting member, and a second protrusion inclined downward is provided on the right side of the limiting member.

[0012] Furthermore, the polishing mechanism includes a polishing sleeve, a supporting ring, a polishing ring and a sliding block; the cross-section of the cleaning rack is an L-shaped structure; the outer side surface of the cleaning rack is an arc-shaped structure; the outer side surface of the cleaning rack is tightly attached to the inner side surface of the packaging container; and a detachable wiping cloth is provided on the outer side surface of the cleaning rack.

[0013] Furthermore, the limiting mechanism includes a sliding block 1, a supporting block, a sliding rod, a ring gear, a sliding block 2 and a spring 1. The sliding block 1 is slidably arranged in the sliding groove, a supporting block is fixedly installed between the two sliding blocks 1, a through groove is provided in the supporting block, a sliding rod is slidably arranged in the through groove, a ring gear is installed on the inner side of the through groove through a bearing, the ring gear cooperates with the fan gear, and a limiting groove is symmetrically provided on the sliding rod, a sliding block 2 is slidably arranged in the limiting groove, the sliding block 2 is fixedly installed on the inner side wall of the ring gear, and a spring 1 is connected between the sliding block 2 and the limiting groove.

[0014] Furthermore, the collecting mechanism includes a circular plate, a support rod, a strip plate and an adsorption hole. The circular plate is fixedly installed inside the collecting trough. A groove is provided on the circular plate. A support rod is fixedly installed on the inner wall of the groove. The circular plate is provided with an adsorption hole connected to the groove. A rotatable strip plate is symmetrically installed on the outer wall of the support rod. The strip plate and the support rod are connected by a torque spring. The strip plate is made of lightweight material, and the strip plate and the groove are sealed.

[0015] Furthermore, the adsorption mechanism includes a connecting rod, a suction cup, a sealing block, a sliding block three and a spring two. The interior of the sliding rod is a hollow structure. A connecting rod is slidably arranged in the sliding rod. An ejection groove is provided on the limit member, and the ejection groove is consistent with the outer contour of the limit member. The depth of the ejection groove at the second protruding position changes from deep to shallow. One end of the connecting rod is slidably arranged in the ejection groove. A suction cup is fixedly installed on the outer surface of the sliding rod. A sealing port connected to the sliding rod is provided in the middle of the suction cup. A sealing block matching the sealing port is installed at the other end of the connecting rod. Push grooves are symmetrically provided on the sliding rod. A sliding block three is slidably arranged in the push groove. The sliding block three is fixedly installed on the connecting rod. A spring two is installed between the sliding block three and the push groove.

[0016] Furthermore, the cleaning assembly includes a connecting plate, a cleaning frame and a cleaning roller. The connecting plate is fixedly installed on both side walls of the protective cover. The cleaning frame is evenly fixedly installed on the left side of the connecting plate. The cleaning frame corresponds to the working unit one by one. Cleaning rollers are installed on the front and rear side walls of the cleaning frame, and cleaning rollers are evenly installed on the right side wall of the cleaning frame.

[0017] Furthermore, the driving assembly includes a driving cover, a driving motor, a rotating gear and a driving gear. The driving cover is fixedly mounted on the rear end of the protective cover, the driving motor is fixedly mounted on the inner side wall of the driving cover, the driving gear is mounted on the output end of the driving motor, the rotating gear is fixedly mounted on the mounting frame, and the rotating gear is meshed with the driving gear.

[0018] In the above technical scheme, the present invention provides a processing and transportation equipment for plastic packaging containers for food. The driving component of the present invention drives the working ring to rotate. When the working component on the working ring rotates to above the conveying component, the working component accurately adsorbs and fixes the packaging container on the conveying component. When the working ring continues to rotate, the working component performs air-tightness detection on the packaging container to prevent leakage or deterioration of food in the packaging container during use. The fan gear drives the ring gear to drive the slide rod to rotate, and the adsorption mechanism adsorbs the packaging container to follow the rotation. During the rotation of the packaging container, the outer side of the cleaning frame scrapes and cleans the inner side of the packaging container to prevent impurities on the inner side of the packaging container from affecting subsequent use. At the same time, the cleaning component cleans the outer side of the packaging container to prevent secondary contamination between the packaging containers stacked on each other during the stacking process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0020] Figure 1 It is a three-dimensional structural schematic diagram of this application.

[0021] Figure 2 It is the first cutaway structural schematic diagram of this application.

[0022] Figure 3 It is a second cross-sectional structural schematic diagram of the present application.

[0023] Figure 4 It is a third cross-sectional structural schematic diagram of the present application.

[0024] Figure 5 It is a schematic diagram of the cross-section structure of the working components of this application.

[0025] Figure 6 It is a structural diagram of the working ring, the limiting member and the limiting mechanism of the present application.

[0026] Figure 7 It is a schematic diagram of the cross-section structure between the limiting mechanism, the collecting mechanism and the sealing disk of the present application.

[0027] Figure 8 It is a schematic diagram of the cross-section structure of the limiting mechanism of the present application.

[0028] Fig. 9 It is a schematic diagram of the cross-sectional structure of the collection mechanism of the present application.

[0029] Fig.10 It is a schematic diagram of the cross-sectional structure of the adsorption mechanism of the present application.

[0030] Fig.11 It is a schematic diagram of the cross-section structure of the limiter of the present application.

[0031] Fig.12 It is a schematic diagram of the cross-sectional structure of the drive component of the present application.

[0032] Description of reference numerals: 1. base; 11. protective cover; 2. conveying assembly; 21. guide roller; 22. conveyor belt; 3. working assembly; 31. working ring; 32. mounting frame; 33. fixing rod; 34. working unit; 341. limiting ring; 342. limiting mechanism; 3421. sliding block 1; 3422. supporting block; 3423. sliding rod; 3424. ring gear; 3425. sliding block 2; 3426. spring 1; 343. sector gear; 344. sealing disk; 345. rubber airbag; 346. collecting mechanism; 3461. round Plate; 3462, support rod; 3463, strip plate; 3464, adsorption hole; 347, cleaning rack; 348, adsorption mechanism; 3481, connecting rod; 3482, suction cup; 3483, sealing block; 3484, sliding block three; 3485, spring two; 349, limiter; 3491, first protrusion; 3492, second protrusion; 35, limiter plate; 4, cleaning assembly; 41, connecting plate; 42, cleaning rack; 43, cleaning roller; 5, limiter assembly; 51, drive cover; 52, drive motor; 53, rotating gear; 54, drive gear. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0034] See also Figure 1-Figure 12 A processing and transportation device for a plastic packaging container for food provided in an embodiment of the present invention comprises: a base 1, which is in a rectangular structure, a conveying trough is provided on the upper part of the base 1, a protective cover 11 is installed on the upper part of the base 1, and the protective cover 11 is in a U-shaped structure; a conveying component 2 is installed inside the conveying trough, and the conveying component 2 is used to convey the packaging container at a uniform speed; a working component 3 is installed in the middle of the protective cover 11, and the working component 3 is used to perform air tightness detection on the packaging container and clean and wipe the inner side; a cleaning component 4 is installed on the right part of the protective cover 11, and the cleaning component 4 is used to clean the outer side of the plastic box; a driving component 5 is installed behind the protective cover 11, and the driving component 5 is used to drive the working component 3 to rotate at a uniform speed.

[0035] In the above technical scheme, when the conveying component 2 transports the plastic packaging container to the bottom of the working component 3 at a uniform speed, the working component 3 limits the packaging container, and the driving component 5 drives the working component 3 to operate clockwise. When the working component 3 adsorbs the packaging container on the conveying component 2, the working component 3 will drive the packaging container to rotate clockwise. During the rotation of the working component 3, the working component 3 can perform air tightness detection on the packaging container and wipe the inner side of the packaging container to prevent impurities on the inner side of the packaging container from affecting the use. The cleaning component 4 cleans the outer side of the packaging container to prevent impurities remaining on the outer side of the packaging container from affecting the inner side of the packaging container when the packaging container is stacked. When the packaging container is cleaned, the working component 3 releases and ejects the packaging container, and the packaging container returns to the conveying component 2 again. The conveying component 2 continues to convey the packaging container to facilitate the subsequent stacking of the packaging container.

[0036] During the air tightness test, if there is no leakage, it means that the packaging container is good; if there is leakage, it means that the packaging container is damaged and it should be manually selected to prevent the damaged ones from being stacked together with the intact ones.

[0037] See also Figure 2 As shown, as a preferred technical solution of this embodiment, the conveying component 2 includes a guide roller 21 and a conveyor belt 21, the guide rollers 21 are evenly arranged on the two side walls of the conveying trough, and the conveyor belt 21 is arranged on the outer surface of the guide roller 21.

[0038] In the above technical solution, the packaging container is placed on the conveyor belt 21. When the packaging container is placed on the conveyor belt 21, there is a certain gap between adjacent groups of packaging containers. When the driving component 5 drives the working component 3 to rotate, the working component 3 will not interfere with the next group of packaging containers. As the guide roller 21 rotates, the guide roller 21 drives the conveyor belt 21 to transport the packaging container to the right at a uniform speed.

[0039] See also Figure 2 , Figure 3 and Figure 4As shown, as the preferred technical solution of this embodiment, the working component 3 includes a working ring 31, a mounting frame 32, a fixing rod 33, a working unit 34 and a limiting plate 35. The working ring 31 is arranged inside the protective cover 11. The mounting frames 32 are fixedly installed at both ends of the working ring 31. The mounting frame 32 is a circular ring structure with an L-shaped cross-section. The middle part of the mounting frame 32 is a hollow structure. A fixing rod 33 is installed between the two mounting frames 32 through a bearing. One end of the fixing rod 33 passes through the mounting frame 32 and is fixedly connected to the driving component 5. The working units 34 are evenly arranged on the working ring 31 along its length direction. The inner side of the working unit 34 is fixedly installed on the fixing rod 33. A limiting plate 35 is arranged below the working ring 31. The limiting plate 35 is fixedly installed on the inner wall of the protective cover 11. The limiting plate 35 is evenly provided with positioning grooves, and the positions of the positioning grooves correspond one to one with the working units 34 on the working ring 31.

[0040] See also Figure 4 , Figure 5 and Figure 7 As shown, as a preferred technical solution of this embodiment, the working unit 34 includes a limiting ring 341, a limiting mechanism 342, a sector gear 343, a sealing disk 344, a rubber airbag 345, a collecting mechanism 346, a cleaning frame 347, an adsorption mechanism 348 and a limiting member 349. There are two limiting rings 341, which are fixedly mounted on the fixing rod 33. The two limiting rings 341 are connected by a limiting member 349. A sliding groove is provided on the limiting ring 341, and the limiting mechanism 342 is slidably arranged inside the sliding groove. One of the limiting rings 341 is fixedly mounted with The sector gear 343 cooperates with the limiting mechanism 342, and a sealing groove is provided on the outer wall of the working ring 31 along its axial direction. The sealing disk 344 is fixedly installed in the sealing groove. The sealing disk 344 is a circular ring structure with an L-shaped cross-section. An inwardly inclined clamping groove is provided on the side wall of the sealing disk 344, and a rubber airbag 345 is fixedly installed in the clamping groove. A collecting groove is provided on the inner side surface of the sealing disk 344, and a collecting mechanism 346 is fixedly installed in the collecting groove. A cleaning frame 347 is evenly fixedly installed inside the sealing disk 344, and the limiting mechanism 342 passes through the sealing disk 344 and an adsorption mechanism 348 is installed.

[0041] See also Figure 5 and Fig.11 As shown, as a preferred technical solution of this embodiment, the lower end of the limiting member 349 is provided with a first protrusion 3491 extending downward, and the right side of the limiting member 349 is provided with a second protrusion 3492 inclined downward.

[0042] In the above technical solution, the conveying component 2 conveys the packaging container at a uniform speed. When the packaging container moves to the position of the limiting plate 35, the positioning groove limits the packaging container, so that the packaging container can be accurately positioned. The driving component 5 drives the mounting frame 32 to rotate, and the working ring 31 rotates synchronously with the mounting frame 32. When the working ring 31 drives the limiting mechanism 342 to rotate to the first protrusion 3491 at the lower end of the limiting member 349, the first protrusion squeezes the limiting mechanism 342, and the limiting mechanism 342 drives the adsorption mechanism 348 to move downward. The attachment mechanism 348 squeezes and absorbs the packaging container on the conveying component 2, so that the packaging container can be fixed on the outside of the absorption mechanism 348. As the limiting mechanism 342 passes over the first protrusion 3491, the absorption mechanism 348 drives the packaging container to move inward, the opening of the packaging container is in contact with the sealing disk 344, and the inner side of the packaging container is in contact with the outer side of the cleaning frame 347. When the working ring 31 continues to rotate, the inside of the rubber airbag 345 is inflated, and the rubber airbag 345 presses the packaging container inward along the inwardly inclined pressing groove, so that the packaging container The opening of the container is in close contact with the sealing disk 344 to avoid leakage during the airtightness test. At the same time, the collecting mechanism 346 performs air suction to form a negative pressure inside the packaging container, thereby performing an airtightness test on the packaging container. When the limiting mechanism 342 rotates to the meshing position with the fan gear 343, the rubber airbag 345 is reset and retracted into the pressing groove. The fan gear 343 drives the limiting mechanism 342 to rotate, and the adsorption mechanism 348 rotates with the limiting mechanism 342. The adsorption mechanism 348 drives the adsorbed packaging container to rotate synchronously, thereby cleaning the shelf. The outer side of 347 cleans the inner side of the packaging container so that impurities adhering to the inner side of the packaging container fall off, and at the same time the collecting mechanism 346 collects the fallen impurities. When the limiting mechanism 342 rotates to the second protrusion 3492 of the limiting member 349, the limiting mechanism 342 and the fan gear 343 stop meshing, and at the same time the adsorption mechanism 348 stops adsorption, and the end of the adsorption mechanism 348 separates from the packaging container. The limiting mechanism 342 drives the adsorption mechanism 348 to push the packaging container outward, so that the packaging container returns to the conveyor belt 21 again.

[0043] See also Figure 5 and Figure 7 As shown, as the preferred technical solution of this embodiment, the cross-section of the cleaning rack 347 is an L-shaped structure, the outer side of the cleaning rack 347 is an arc-shaped structure, the outer side of the cleaning rack 347 is in close contact with the inner side of the packaging container, and a detachable wiping cloth is provided on the outer side of the cleaning rack 347.

[0044] In the above technical solution, the cleaning rack 347 scrapes off impurities on the inner side of the packaging container, and the replaceable wiping cloth can wipe the release agent on the inner side of the packaging container. After a certain period of use, the wiping cloth is replaced to avoid excessive accumulation of release agent on the wiping cloth after long-term use.

[0045] Continue reading Figure 6 , Figure 7 and Figure 8 As shown, as a preferred technical solution of this embodiment, the limiting mechanism 342 includes a sliding block 1 3421, a supporting block 3422, a sliding rod 3423, a ring gear 3424, a sliding block 2 3425 and a spring 1 3426. The sliding block 1 3421 is slidably arranged in the sliding groove, and a supporting block 3422 is fixedly installed between the two sliding blocks 1 3421. A through groove is provided in the supporting block 3422, and a sliding rod 3423 is slidably arranged in the through groove. A ring gear 3424 is installed on the inner side of the through groove through a bearing. The ring gear 3424 cooperates with the fan gear 343. Limiting grooves are symmetrically provided on the sliding rod 3423, and a sliding block 2 3425 is slidably arranged in the limiting groove. The sliding block 2 3425 is fixedly installed on the inner side wall of the ring gear 3424, and a spring 1 3426 is connected between the sliding block 2 3425 and the limiting groove.

[0046] In the above technical solution, as the working ring 31 rotates, the slide bar 3423 rotates accordingly, and the slide bar 3423 drives the support block 3422 to move inside the sliding groove. The slide block 1 3421 limits the position of the support block 3422. When the slide bar 3423 rotates to the first protrusion 3491 at the lower end of the limiter 349, the first protrusion 3491 squeezes the slide bar 3423 to move outward, so that the slide bar 3423 can drive the adsorption mechanism 348 to move downward to adsorb and take materials from the packaging container. When the slide bar 3423 passes over the first protrusion 3491 at the lower end of the limiter 349, the first protrusion 3491 squeezes the slide bar 3423 to move outward. When the support block 3422 rotates to the position of the sector gear 343, the ring gear 3424 meshing with the sector gear 343 rotates, and the ring gear 3424 drives the slide bar 3423 to rotate through the slide block 2 3425, and the adsorption mechanism 348 rotates with the slide bar 3423, and the adsorption mechanism 348 drives the plastic container to rotate synchronously, which is convenient for cleaning the inner and outer sides of the packaging container and preventing impurities on the packaging container from affecting subsequent use.

[0047] Continue reading Figure 7 and Fig. 9As shown, as a preferred technical solution of this embodiment, the collecting mechanism 346 includes a circular plate 3461, a support rod 3462, a strip plate 3463 and an adsorption hole 3464. The circular plate 3461 is fixedly installed inside the collecting tank. A groove is provided on the circular plate 3461. The support rod 3462 is fixedly installed on the inner wall of the groove. The circular plate 3461 is provided with an adsorption hole 3464 connected to the groove. A rotatable strip plate 3463 is symmetrically installed on the outer wall of the support rod 3462. The strip plate 3463 and the support rod 3462 are connected by a torque spring. The strip plate 3463 is made of lightweight material, and the strip plate 3463 and the groove are sealed.

[0048] In the above technical scheme, when the packaging container is tested for air tightness, the adsorption holes 3464 suck air inside the packaging container, so that negative pressure is formed inside the packaging container, and at the same time, the strip plate 3463 rotates inward under the action of the negative pressure, so that the groove is connected to the inside of the packaging container; when the packaging container is cleaned, the slide bar 3423 drives the adsorption mechanism 348 to rotate, and the packaging container follows the rotation, so that the outer side of the cleaning frame 347 faces the inner side of the packaging container for cleaning, and at the same time, the adsorption holes 3464 suck air inside the packaging container, and the strip plate 3463 rotates inward under the action of negative pressure, so that impurities inside the packaging container can be accurately collected in the groove, and when the adsorption holes 3464 stop sucking air, the torque spring causes the strip plate 3463 to rotate outward to prevent impurities in the groove from falling back into the packaging container.

[0049] See also Figure 8 and 10 As shown, as a preferred technical solution of this embodiment, the adsorption mechanism 348 includes a connecting rod 3481, a suction cup 3482, a sealing block 3483, a sliding block 3484 and a spring 2 3485. The interior of the sliding rod 3423 is a hollow structure, and the connecting rod 3481 is slidably arranged in the sliding rod 3423. The limit member 349 is provided with an ejection groove, and the ejection groove is consistent with the outer contour of the limit member 349. The depth of the ejection groove at the position of the second protrusion 3492 changes from deep to shallow. The end slide is arranged inside the ejection groove, a suction cup 3482 is fixedly installed on the outer surface of the slide rod 3423, a sealing port connected to the slide rod 3423 is arranged in the middle of the suction cup 3482, a sealing block 3483 cooperating with the sealing port is installed at the other end of the connecting rod 3481, and a push groove is symmetrically opened on the slide rod 3423, a sliding block three 3484 is slidingly arranged in the push groove, the sliding block three 3484 is fixedly installed on the connecting rod 3481, and a spring two 3485 is installed between the sliding block three 3484 and the push groove.

[0050] In the above technical solution, when the slide bar 3423 moves to the first protrusion 3491 of the limiter 349, the slide bar 3423 drives the suction cup 3482 to move downward, and the suction cup 3482 is deformed by squeezing. When the suction cup 3482 is reset, negative pressure is formed between the inside of the suction cup 3482 and the packaging box, and the suction cup accurately adsorbs the packaging container. At this time, the second spring 3485 will not be deformed. When the slide bar 3423 moves to the second protrusion 3492 of the limiter 349, the depth of the ejection groove at the second protrusion 3492 changes from deep to shallow. The ejection groove drives the connecting rod 3481 to extend outward from the inside of the sliding rod 3423, and the connecting rod 3481 drives the sealing block 3483 to separate from the sealing port on the suction cup 3482, so that the suction cup 3482 loses its sealing property, and the suction cup 3482 stops adsorbing the packaging container. At the same time, under the action of the second protrusion 3492 of the limiting member 349, the sliding rod 3423 ejects the packaging container from the inside of the sealing disk 344 to facilitate the falling off of the packaging container. When the sliding rod 3423 passes over the second protrusion 3492 of the limiting member 349, the adsorption mechanism 348 is reset.

[0051] See also Figure 2 As shown, the cleaning assembly 4 includes a connecting plate 41, a cleaning frame 42 and a cleaning roller 43. The connecting plate 41 is fixedly mounted on the two side walls of the protective cover 11. The cleaning frame 42 is evenly fixedly mounted on the left side of the connecting plate 41. The cleaning frame 42 corresponds to the working unit 34 one by one. Cleaning rollers 43 are mounted on the front and rear side walls of the cleaning frame 42, and cleaning rollers 43 are evenly mounted on the right side wall of the cleaning frame 42.

[0052] In the above technical solution, when the adsorption mechanism 348 drives the packaging container to rotate to the position of the cleaning rack 42, the cleaning roller 43 cleans the outer side of the packaging container to prevent the packaging container from affecting the next packaging container during the stacking process.

[0053] See also Fig.12 As shown, the driving assembly 5 includes a driving cover 51, a driving motor 52, a rotating gear 53 and a driving gear 54. The driving cover 51 is fixedly mounted on the rear end of the protective cover 11, the driving motor 52 is fixedly mounted on the inner side wall of the driving cover 51, the driving gear 54 is mounted on the output end of the driving motor 52, and the rotating gear 53 is fixedly mounted on the mounting frame 32, and the rotating gear 53 is meshed with the driving gear 54.

[0054] In the above technical solution, the driving motor 52 drives the driving gear 54 to rotate, so that the rotating gear 53 meshing with the driving gear 54 rotates, and the rotating gear 53 enables the mounting frame 32 to drive the working ring 31 to rotate.

[0055] The specific working principle of the present invention is:

[0056] The first step is to transport the packaging container at a uniform speed: the conveying component 2 drives the packaging container to be transported forward at a uniform speed. When the packaging container reaches the position of the limiting plate 35, the limiting plate 35 limits the position of the packaging container;

[0057] Step 2: Air tightness test of packaging container: the working ring 31 drives the limiting mechanism 342 to rotate. When the limiting mechanism 342 rotates to the first protrusion 3491 of the limiting member 349, the limiting mechanism 342 drives the adsorption mechanism 348 to adsorb the packaging container on the conveying component 2. The limiting mechanism 342 continues to rotate, and the collecting mechanism 346 performs air tightness test on the packaging container.

[0058] The third step is to clean the inside and outside of the packaging container: when the limiting mechanism 342 rotates to the position of the sector gear 343, the limiting mechanism 342 rotates, and the adsorption mechanism 348 rotates accordingly, so that the adsorption mechanism 348 drives the packaging container to rotate, the cleaning rack 347 cleans the inner side of the packaging container, the cleaning component 4 cleans the outer side of the packaging container, and the collecting mechanism 346 collects the impurities cleaned by the cleaning rack 347;

[0059] Step 4: separation of packaging container: when the limiting mechanism 342 rotates to the second protrusion 3492 of the limiting member 349, the limiting mechanism 342 drives the packaging container to move outward. At the same time, under the action of the ejection groove, the adsorption force of the adsorption mechanism 348 on the packaging container disappears, and the packaging container falls back to the conveying component 2 to continue conveying.

[0060] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A processing and transportation equipment for plastic packaging containers for food, characterized in that: include: The base (1) is of rectangular structure, a conveying groove is provided on the upper part of the base (1), a protective cover (11) is installed on the upper part of the base (1), and the protective cover (11) is of U-shaped structure; A conveying assembly (2) is installed inside the conveying trough, and the conveying assembly (2) is used to convey the packaging container at a uniform speed; A working component (3) is installed in the middle of the protective cover (11), and the working component (3) is used to perform airtightness detection on the packaging container and clean and wipe the inner side surface; A cleaning assembly (4) is mounted on the right side of the protective cover (11), and the cleaning assembly (4) is used to clean the outer side of the plastic box; A driving assembly (5) is installed behind the protective cover (11), and the driving assembly (5) is used to drive the working assembly (3) to rotate at a constant speed; The working assembly (3) comprises a working ring (31), a mounting frame (32), a fixing rod (33), a working unit (34) and a limiting plate (35); the working ring (31) is arranged inside the protective cover (11); mounting frames (32) are fixedly mounted at both ends of the working ring (31); the mounting frames (32) are circular ring structures with an L-shaped cross section; the middle of the mounting frames (32) is a hollow structure; a fixing rod (33) is mounted between the two mounting frames (32) via a bearing; the fixing rod (33) One end passes through the mounting frame (32) and is fixedly connected to the driving assembly (5); working units (34) are evenly arranged on the working ring (31) along its length direction; the inner side of the working unit (34) is fixedly mounted on the fixing rod (33); a limiting plate (35) is arranged below the working ring (31); the limiting plate (35) is fixedly mounted on the inner side wall of the protective cover (11); and positioning grooves are evenly arranged on the limiting plate (35); the positions of the positioning grooves correspond one to one to the working units (34) on the working ring (31).

2. The processing and transportation equipment for plastic packaging containers for food according to claim 1, characterized in that: The conveying assembly (2) comprises a guide roller (21) and a conveyor belt (21); the guide rollers (21) are evenly arranged on the two side walls of the conveying trough; and the conveyor belt (21) is arranged on the outer surface of the guide roller (21).

3. The processing and transportation equipment for plastic packaging containers for food according to claim 1, characterized in that: The working unit (34) comprises a limiting ring (341), a limiting mechanism (342), a sector gear (343), a sealing disk (344), a rubber airbag (345), a collecting mechanism (346), a cleaning frame (347), an adsorption mechanism (348) and a limiting member (349). There are two limiting rings (341), the limiting rings (341) are fixedly mounted on the fixing rod (33), the two limiting rings (341) are connected via the limiting member (349), a sliding groove is provided on the limiting ring (341), the limiting mechanism (342) is slidably arranged inside the sliding groove, and a sector gear matched with the limiting mechanism (342) is fixedly mounted on the inner side surface of one of the limiting rings (341). The fan-shaped gear (343) is located on the right side of the inner side of the limiting ring (341). A sealing groove is provided on the outer side wall of the working ring (31) along its axial direction. The sealing disk (344) is fixedly installed in the sealing groove. The sealing disk (344) is a circular ring structure with an L-shaped cross-section. A pressing groove inclined inward is provided on the side wall of the sealing disk (344). A rubber airbag (345) is fixedly installed in the pressing groove. A collecting groove is provided on the inner side of the sealing disk (344). A collecting mechanism (346) is fixedly installed in the collecting groove. A cleaning frame (347) is evenly fixedly installed inside the sealing disk (344). The limiting mechanism (342) passes through the sealing disk (344) and is installed with an adsorption mechanism (348).

4. The processing and transportation equipment for plastic packaging containers for food according to claim 3, characterized in that: The cross section of the cleaning rack (347) is an L-shaped structure, the outer side of the cleaning rack (347) is an arc-shaped structure, the outer side of the cleaning rack (347) is in close contact with the inner side of the packaging container, and a detachable wiping cloth is provided on the outer side of the cleaning rack (347).

5. The processing and transportation equipment for plastic packaging containers for food according to claim 3, characterized in that: A first protrusion (3491) extending downward is provided at the lower end of the limiting member (349), and a second protrusion (3492) inclined downward is provided on the right side of the limiting member (349).

6. The processing and transportation equipment for plastic packaging containers for food according to claim 3, characterized in that: The limiting mechanism (342) comprises a sliding block (3421), a supporting block (3422), a sliding rod (3423), a ring gear (3424), a sliding block (3425) and a spring (3426); a sliding block (3421) is slidably arranged in the sliding groove; a supporting block (3422) is fixedly installed between the two sliding blocks (3421); a through slot is provided in the supporting block (3422); a sliding block (3425) is slidably arranged in the through slot A slide bar (3423) is provided, a ring gear (3424) is installed on the inner side of the through groove through a bearing, the ring gear (3424) cooperates with the fan gear (343), and a limiting groove is symmetrically provided on the slide bar (3423), a second sliding block (3425) is slidably arranged in the limiting groove, the second sliding block (3425) is fixedly installed on the inner side wall of the ring gear (3424), and a spring (3426) is connected between the second sliding block (3425) and the limiting groove.

7. The processing and transportation equipment for plastic packaging containers for food according to claim 3, characterized in that: The collecting mechanism (346) comprises a circular plate (3461), a support rod (3462), a strip plate (3463) and an adsorption hole (3464); the circular plate (3461) is fixedly installed inside the collecting tank; a groove is provided on the circular plate (3461); a support rod (3462) is fixedly installed on the inner wall of the groove; an adsorption hole (3464) connected to the groove is provided on the circular plate (3461); a rotatable strip plate (3463) is symmetrically installed on the outer wall of the support rod (3462); the strip plate (3463) and the support rod (3462) are connected by a torque spring; the strip plate (3463) is made of a lightweight material; and the strip plate (3463) and the groove are sealed.

8. The processing and transportation equipment for plastic packaging containers for food according to claim 6, characterized in that: The adsorption mechanism (348) includes a connecting rod (3481), a suction cup (3482), a sealing block (3483), a sliding block three (3484) and a spring two (3485). The interior of the sliding rod (3423) is a hollow structure. The connecting rod (3481) is slidably arranged in the sliding rod (3423). An ejection groove is provided on the limiting member (349). The ejection groove is consistent with the outer contour of the limiting member (349). The depth of the ejection groove at the position of the second protrusion (3492) changes from deep to shallow. One end of the connecting rod (3481) is slidably arranged at the ejection groove. Inside the groove, a suction cup (3482) is fixedly installed on the outer surface of the sliding rod (3423), a sealing port connected to the sliding rod (3423) is arranged in the middle of the suction cup (3482), a sealing block (3483) matched with the sealing port is installed on the other end of the connecting rod (3481), and a push groove is symmetrically opened on the sliding rod (3423), a sliding block three (3484) is slidably arranged in the push groove, the sliding block three (3484) is fixedly installed on the connecting rod (3481), and a spring two (3485) is installed between the sliding block three (3484) and the push groove.

9. The processing and transportation equipment for plastic packaging containers for food according to claim 1, characterized in that: The cleaning assembly (4) comprises a connecting plate (41), a cleaning frame (42) and a cleaning roller (43); the connecting plate (41) is fixedly mounted on the two side walls of the protective cover (11); the cleaning frame (42) is evenly fixedly mounted on the left side of the connecting plate (41); the cleaning frame (42) corresponds to the working unit (34) in a one-to-one manner; the cleaning rollers (43) are mounted on the front and rear side walls of the cleaning frame (42); and the cleaning rollers (43) are evenly mounted on the right side wall of the cleaning frame (42).

10. The processing and transportation equipment for plastic packaging containers for food according to claim 1, characterized in that: The driving assembly (5) comprises a driving cover (51), a driving motor (52), a rotating gear (53) and a driving gear (54); the driving cover (51) is fixedly mounted on the rear end of the protective cover (11); the driving motor (52) is fixedly mounted on the inner side wall of the driving cover (51); the driving gear (54) is mounted on the output end of the driving motor (52); the rotating gear (53) is fixedly mounted on the mounting frame (32); and the rotating gear (53) is meshed with the driving gear (54).

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