Automatic box cover opening mechanism and control method

Abstract

The application discloses a kind of box automatic uncovering mechanism and control method, including uncovering device, uncovering device includes uncovering subassembly and lid subassembly, the uncovering device is set on height measuring component;The uncovering subassembly includes open upper lid station and open lower lid station, and suction lid subassembly is set on open upper lid station and open lower lid station;The lid subassembly includes lid element, horizontal uncovering drive device and vertical lid drive device, horizontal uncovering drive device drives lid element to move along horizontal direction, and vertical lid drive device drives lid element to move along vertical direction;The height measuring component drives uncovering subassembly and lid subassembly to do vertical lifting motion.The application integrates uncovering and taking cover function in a station, equipment uses two-stage uncovering structure, and horizontal uncovering device immediately vertically flips open lid to target position after horizontally pulling open lid to set position by vertical lid mechanism, realizes the rapid automation of box uncovering, and uncovering process is efficient, fast, stable and reliable.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automatic logistics, further belongs to the technical field of automatic material sorting, and in particular to a box automatic uncovering mechanism and control method. BACKGROUND

[0002] The current mainstream automatic uncovering method of the tobacco sorting industry has problems such as high failure rate, large floor space, and complex mechanism. 1. After uncovering, a separate flip station is set up, such as the Chinese invention patent (application number CN202123012585.3) discloses a box marking machine uncovering mechanism and uncovering device. This method has the problem of sticking after opening the box cover, which leads to subsequent box opening failure. 2. After uncovering, a guardrail guide is used to gradually open the box cover during conveying. This method requires a buffer station between stations, resulting in a large system floor space. 3. The height measuring mechanism is complex and heavy, such as the Chinese invention patent (application number CN202123012585.3) discloses a box marking machine uncovering mechanism and uncovering device. This method has a complex height measuring structure and a heavy mechanism. At the same time, this structure has the problem of inaccurate height measurement due to uneven speed variation. SUMMARY

[0003] The purpose of the present application is to integrate the uncovering function and the flip function in one station, to immediately flip the box cover to the target position after prying open the box cover of different specifications, to effectively reduce the process, to eliminate the sticking of the box cover, to improve the box opening success rate, to immediately flip the box cover to the target position after uncovering, to one-time uncovering to the target position, to eliminate the need for a buffer station between units to guide the box cover to the target position, to make the equipment structure more compact, and to effectively reduce the space occupation area.

[0004] The technical solution of the present application is as follows:

[0005] The present application discloses a box automatic uncovering mechanism, which comprises an uncovering device, the uncovering device comprises an uncovering assembly and a flip assembly, the uncovering device is arranged on a height measuring assembly, the uncovering assembly, the flip assembly and the height measuring assembly are installed on the same station and arranged on both sides of a conveying device; the uncovering assembly comprises an uncovering upper cover station and an uncovering lower cover station, and a cover suction assembly is arranged on each of the uncovering upper cover station and the uncovering lower cover station; the flip assembly comprises a flip element, a horizontal uncovering driving device and a vertical flip driving device, the horizontal uncovering driving device drives the flip element to move in the horizontal direction, and the vertical flip driving device drives the flip element to move in the vertical direction; the height measuring assembly drives the uncovering assembly and the flip assembly to move vertically.

[0006] Due to the above technical scheme, after the sealing glue at the opening of the box cover is damaged, the cover suction assembly adsorbs the box cover, the cover turning assembly is inserted along the gap generated at the box cover and the box body, with the cover suction assembly resetting, the cover turning assembly is opened with the cover suction device, so that the box cover is in a pried open state, then the horizontal cover opening device in the cover turning assembly horizontally pulls to further horizontally pry open the box cover to a set position, and finally the vertical cover turning device in the cover turning assembly vertically moves to turn open the box cover to a target position in the vertical direction, so as to realize the automation of unboxing the goods. The unboxing function and the cover turning function are integrated, the box cover of different specifications is immediately turned to the target position after being pried open, the subsequent whole process is guided by the guide device, the process is effectively reduced, the box cover is effectively prevented from being adhered again, and the unboxing success rate is improved.

[0007] Further, the cover suction assembly comprises a suction disc, a suction disc first telescopic device, a suction disc second telescopic device and a vacuum pumping device. The suction disc first telescopic device and the suction disc second telescopic device drive the suction disc to move in the horizontal direction. The vacuum pumping device is connected with the suction disc and generates a vacuum between the suction disc and the box cover, so that the suction disc adsorbs the box cover. After the suction disc adsorbs the box cover, the suction disc first telescopic device is retracted to the initial state, and the box cover moves outward under the action of the suction disc, so that the box cover is separated from the box body and a gap is generated.

[0008] By the above technical scheme, the box cover is connected with the suction disc by vacuum pumping, which is simple in structure, low in energy consumption and will not damage the box cover.

[0009] Further, the cover turning element comprises a horizontal cover opening device, a first cover turning device, a second cover turning device and a blade. The blade is installed at the lower end of the vertical telescopic rod of the second cover turning device, and the blade opening on the upper cover opening station is upward, and the blade opening on the lower cover opening station is downward. The second cover turning device is installed at the lower end of the vertical telescopic rod of the first cover turning device. The first cover turning device drives the second cover turning device and the blade to vertically move together under the drive of the vertical cover turning driving device. The second cover turning device can independently drive the blade to vertically move under the drive of the vertical cover turning driving device. The fixed side of the first cover turning device is installed on one side of the horizontal telescopic rod of the horizontal cover opening device. The horizontal cover opening device drives the first cover turning device, the second cover turning device and the blade to move in the horizontal direction as a whole under the drive of the horizontal cover opening driving device.

[0010] By the above technical scheme, it is ensured that the cover turning element is inserted after the box cover is pried open to a safe position, so that the box cover is prevented from being folded due to collision between the cover turning element and the box cover during insertion. The equipment adopts a second cover opening structure. After the horizontal cover opening device horizontally pulls open the box cover to a set position, the vertical cover turning mechanism immediately vertically turns open the box cover to a target position.

[0011] Further, the height measuring assembly comprises a height measuring pressure plate, a swing rod assembly and a height measuring power device; the swing rod assembly drives the height measuring pressure plate and the cover opening device to move in the vertical direction under the action of the height measuring power device until the height measuring pressure plate presses the upper skin of the tobacco box, and the displacement change amount of the height measuring pressure plate and the cover opening device in the height direction is a fixed ratio.

[0012] By using the above technical scheme, the vertical movement of the height measuring power device drives the swing rod assembly to act, and the swing rod assembly drives the height measuring assembly and the cover turning assembly to act, so that the height measuring assembly and the cover turning assembly move vertically along the linear guide rails, and the ratio of the distance between the height measuring surface of the height measuring assembly and the conveying surface to the distance between the lower surface of the blade of the cover turning assembly and the conveying surface is fixedly kept as 2:1 during the action, so that the cover turning assembly can automatically find the gap in the box.

[0013] Further, the frame, the inner frame and the centering assembly are further included, the inner frame is installed on the frame, and the conveying device and the centering assembly are installed on the inner frame; the inner frame is provided with linear guide rails, the cover opening assembly, the cover turning assembly and the height measuring assembly are installed on the linear guide rails of the inner frame through the mounting seats and are connected with the centering assembly, and the centering assembly drives the two cover opening assemblies, the cover turning assemblies and the height measuring assemblies to synchronously and reversely move linearly in the form of synchronous clamping to the box cover.

[0014] Further, the centering assembly comprises a centering element, a centering guide device, a centering driving device and a reversing device, the centering guide device is connected with the inner frame, one centering element is arranged below each of the two mounting seats, the two centering elements are connected with the centering guide device through the reversing device, the reversing device can drive the two centering elements to synchronously and reversely move linearly under the action of the centering driving device, and the two centering elements cooperatively limit and center the box.

[0015] By using the above technical scheme, the box is limited by the centering assembly, the positions of the cover opening assembly and the cover turning assembly are ensured to be found to the box cover, the centering driving device serves as the power, and the synchronous and reverse linear movement of the centering elements is realized under the action of the reversing device, so that the centering of the box is realized in the form of synchronous clamping.

[0016] Further, the conveying device is provided with a baffle assembly, the baffle assembly is arranged in front of the cover opening device, the baffle assembly comprises a baffle and a baffle driving device, the baffle is in the extended state in the default state, and the baffle is higher than the conveying surface; when the tobacco box is output from the upstream station, the tobacco box stops moving after colliding with the baffle under the conveying of the conveying device; the tobacco box is stopped at the set position of the conveying device, and waits for the detection element to be triggered when the cover opening device is empty, the baffle driving device drives the baffle to be retracted, and a tobacco box is released to enter the cover opening device to open the cover.

[0017] The application also discloses a box automatic uncovering control method, which comprises the following steps.

[0018] The centering positioning step: after the tobacco box is stopped by the baffle assembly, the horizontal uncovering device drives the flap assembly to move under the drive of the horizontal uncovering drive device, so that the first flap device, the second flap device and the blade plate extend to the maximum position, then the centering assembly drives the height measuring assembly, the flap assembly and the uncovering assembly to perform synchronous reverse linear motion, so that the box is positioned in a synchronous clamping manner, and then the position is locked under the control of the center seal type electromagnetic valve.

[0019] The uncovering position positioning step: the swing rod assembly is driven to move by the vertical motion of the height measuring power device through pneumatic drive and the parallelogram principle, the swing rod assembly drives the height measuring assembly and the flap assembly to move, so that the height measuring assembly and the flap assembly perform vertical motion along the linear guide rail until the height measuring plate presses the upper skin of the tobacco box, and the ratio of the distance between the height measuring surface of the height measuring assembly and the conveying surface to the distance between the lower edge surface of the blade plate and the conveying surface is a fixed ratio, so that the flap assembly automatically finds the middle gap of the box.

[0020] The box uncovering step: the vacuum is generated between the suction cover assembly and the box cover, and the box cover is sucked, so that a gap is generated between the box cover and the box, the flap assembly controls the vertical motion of the blade plate to insert into the gap, the horizontal uncovering device drives the flap assembly to perform horizontal motion, so that the box cover is further horizontally pried open to a set position, the second flap device continues to drive the vertical motion of the blade plate, so that the box cover is moved, and after the box cover is horizontally pried open to the set position, the box cover is further vertically pried open to a target position.

[0021] The resetting step: the centering assembly and the height measuring assembly are reset, the baffle releases the restriction on the box, the box moves to the next station with the conveying device, and the baffle is reset.

[0022] By adopting the technical scheme, the centering and height measuring functions are automatically realized, the uncovering can be realized for the box with different heights and widths, the horizontal uncovering and vertical uncovering are combined, that is, the uncovering is immediately followed by the uncovering, the guiding device is additionally provided for guiding, the box cover is prevented from sticking, the new technical scheme can effectively reduce the failure rate and improve the reliability. Meanwhile, because the uncovering is once realized to the position, the buffer station is not required between the units for slowly guiding the box cover to the target position, the equipment structure is more compact, and the space occupation area is effectively reduced.

[0023] Further, the box uncovering step comprises an uncovering lower cover step and an uncovering upper cover step, the uncovering lower cover step is that the suction cover assembly of the uncovering lower cover station acts on the lower box cover, the flap assembly is inserted into the gap between the lower box cover and the box, and the lower box cover is pried open downward, and the uncovering upper cover step is that the suction cover assembly of the uncovering upper cover station acts on the upper box cover, the flap assembly is inserted into the gap between the upper box cover and the box, and the upper box cover is pried open upward.

[0024] By adopting the technical scheme, the upper cover opening station and the lower cover opening station are arranged, so that the corresponding case opening mechanisms of the case marking machines are prevented from interfering with each other; after the case passes through the upper cover opening station and the lower cover opening station, the upper case cover and the lower case cover are respectively opened, and the opening of the case cover is convenient and efficient.

[0025] Further, the control method of the horizontal cover opening device in the centering positioning step is that the horizontal cover opening device drives the cover opening assembly to move to the maximum position under the driving of the horizontal cover opening driving device; after the centering positioning is completed, the horizontal cover opening device is retracted to the starting position; the control method of the horizontal cover opening device in the cover opening position positioning step is that the cover opening assembly moves to the position where the blade plate contacts the two side tobacco cases under the driving of the horizontal cover opening device; and the control method of the horizontal cover opening device in the case cover opening step is that the horizontal cover opening device continues to drive the cover opening assembly to move horizontally on the basis of the position in the cover opening position positioning step, so that the case cover is further opened horizontally to the set position.

[0026] By adopting the technical scheme, the same device is used to realize multi-stage control, so that the overall structure is simpler, the action is more reliable, and installation and debugging are facilitated.

[0027] Compared with the prior art, the present application has the following advantages:

[0028] 1. The present application adopts the combination of horizontal cover opening and vertical cover opening, that is, the idea of opening the cover immediately and then opening the cover, and is assisted by a guide device to reduce the sticking of the case cover, so that the failure rate is effectively reduced and the reliability is improved. At the same time, because the cover is opened to the position at one time, there is no need for a buffer station between units to slowly guide the case cover to the target position, so that the device structure is more compact and the space occupation area is effectively reduced.

[0029] 2. The upper and lower case covers on both sides are opened, so that the required pushing force for pushing the tobacco is smaller than that of the single-side cover opening scheme, the convex block does not need to be installed on the pushing head, the tobacco stack shape is more neat, and the failure rate of the downstream device is also correspondingly reduced.

[0030] 3. The present application integrates the cover opening function and the cover opening function in one station, opens the case cover of different specifications immediately to the target position, and then guides the case cover by the guide device throughout the process, so that the process is effectively reduced, the sticking of the case cover is eliminated, and the success rate of opening the case is improved. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 is a schematic view of a case structure of the present application;

[0032] Figure 2 is a schematic view of a lower cover opening station of the present application;

[0033] Figure 3 is a front view of a lower cover opening mechanism of the present application;

[0034] Figure 4 is the left view of the lower cover opening and closing mechanism of the present application;

[0035] Figure 5 is the top view of the lower cover opening and closing mechanism of the present application;

[0036] Figure 6 is the left view of the lower cover opening and closing mechanism of the present application;

[0037] Figure 7 is the rear view of the lower cover opening and closing mechanism of the present application;

[0038] Figure 8 is the structural schematic diagram of the upper cover opening station of the present application;

[0039] Figure 9 is the front view of the upper cover opening and closing mechanism of the present application;

[0040] Figure 10 is the top view of the upper cover opening and closing mechanism of the present application;

[0041] Figure 11 is the side view of the upper cover opening and closing mechanism of the present application;

[0042] Figure 12 is the control flow chart of the upper (lower) cover opening station of the present application;

[0043] Figure 13 is the pneumatic control principle diagram of the upper (lower) cover opening station of the present application.

[0044] Reference signs:

[0045] 1-frame, 2-inner frame, 3-conveying device, 4-centering assembly, 401-centering driving device, 5-tobacco box, 6-height measuring assembly, 7-flap assembly, 8-cover suction assembly, 9-baffle assembly, 901-baffle driving device, 51-upper cover of tobacco box, 52-lower cover of tobacco box, 53-sealing tape, 601-height measuring pressing plate, 602-rocker assembly, 603-height measuring power device, 701-horizontal cover opening device, 702-first stage flap device, 703-second stage flap device, 704-knife plate, 801-suction disc, 802-first stage suction disc telescopic device, 803-second stage suction disc telescopic device, 804-vacuum device. DETAILED DESCRIPTION

[0046] It should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0047] The technical solution of the present invention will be further described in detail below with reference to the embodiments.

[0048] like Figure 1 As shown, the box 5 used in this invention is a cuboid or cube-shaped box 5, with a suitable length, width, and height range of 270-350mm (L) x 430-560mm (W) x 230-350mm (H). The box 5 is open at both ends. When opening the box 5, it is placed on its side on the conveyor device 3, with the two sealed ends of the box 5 facing the sides of the conveyor device 3. At this time, the opening directions of the lids at both ends of the box 5 are upward and downward, respectively. The upward-opening lid is called the upper lid 51, and the downward-opening lid is called the lower lid 52. The two lids of the box 5 are sealed with adhesive tape 53, and the two ends of the adhesive tape 53 are then pasted to the corresponding two sides of the box body. The upper and lower lids of the box 5 are glued together with the left and right lids inside by adhesive dots. The center seam and side seam between the two flaps of box 5, which were sealed with tape 53, were damaged by the box-cutting station in the previous process.

[0049] Example 1

[0050] like Figures 2-13 As shown, this invention discloses an automatic lid opening mechanism for a box, including a lid opening device, which includes a lid opening component and a lid flipping component 7. The lid opening device is mounted on a height measuring component 6. The lid opening component, lid flipping component 7, and height measuring component 6 are installed at the same station and are located on both sides of a conveying device 3. The lid opening component includes an upper lid opening station and a lower lid opening station, and both the upper lid opening station and the lower lid opening station are equipped with lid suction components 8. The lid flipping component includes a lid flipping element, a horizontal lid opening drive device, and a vertical lid flipping drive device. The horizontal lid opening drive device drives the lid flipping element to move horizontally, and the vertical lid flipping drive device drives the lid flipping element to move vertically. The height measuring component 6 drives the lid opening component and the lid flipping component 7 to perform vertical lifting and lowering movements.

[0051] likeFigure 4 、 5 , 10 and 11, the suction cover assembly 8 includes a suction disc 801, a first suction disc telescopic device 802, a second suction disc telescopic device 803 and a vacuum device 804; the first suction disc telescopic device 802 and the second suction disc telescopic device 803 drive the suction disc 801 to move in the horizontal direction; the vacuum device 804 is connected with the suction disc 801 and generates a vacuum between the suction disc 801 and the box cover, so that the suction disc 801 sucks the box cover; after the suction disc 801 sucks the box cover, the first suction disc telescopic device 802 is retracted to the initial state, and the box cover moves outward under the action of the suction disc 801 and the first suction disc telescopic device 802, so that the box cover is separated from the box body and a gap is generated.

[0052] As shown in Figure 6 , the flip cover element includes a horizontal cover opening device 701, a first flip cover device 702, a second flip cover device 703 and a knife plate 704, the knife plate 704 is installed at the lower end of the vertical telescopic rod of the second flip cover device, and the opening of the knife plate 704 on the upper cover opening station is upward, and the opening of the knife plate 704 on the lower cover opening station is downward; the second flip cover device 703 is installed at the lower end of the vertical telescopic rod of the first flip cover device 702, the first flip cover device 702 drives the second flip cover device 703 and the knife plate 704 to move vertically together under the drive of the vertical flip cover driving device, the second flip cover device 703 can independently drive the knife plate 704 to move vertically under the drive of the vertical flip cover driving device; the fixed side of the first flip cover device 702 is installed on one side of the horizontal telescopic rod of the horizontal cover opening device 701, and the horizontal cover opening device 701 drives the first flip cover device 702, the second flip cover device 703 and the knife plate 704 to move in the horizontal direction as a whole under the drive of the horizontal cover opening driving device.

[0053] As shown in Figure 4 , 7 and 10, the height measuring assembly 6 includes a height measuring pressure plate 601, a swing rod assembly 602 and a height measuring power device 603; the swing rod assembly 602 drives the height measuring pressure plate 601 and the cover opening device to move in the vertical direction under the action of the height measuring power device 603 until the height measuring pressure plate 601 presses the upper skin of the tobacco box, and the displacement change amount of the height measuring pressure plate 601 and the cover opening device in the height direction is a fixed ratio.

[0054] As shown in Figure 2As shown, it also includes a frame 1, an inner frame 2, and a centering component 4. The inner frame 2 is mounted on the frame 1, and the conveying device 3 and the centering component 4 are mounted on the inner frame 2. The inner frame 2 is provided with a linear guide rail. The opening component, the flipping component 7, and the height measuring component 6 are mounted on the linear guide rail of the inner frame 2 through mounting bases and are connected to the centering component 4. The centering component 4 simultaneously drives the opening components, flipping components 7, and height measuring components 6 on both sides to move in a synchronous reverse linear motion, moving to the box cover in a synchronous clamping manner. The conveying device is equipped with a baffle assembly 9, which is located in front of the lid opening device. The baffle assembly 9 includes a baffle and a baffle driving device 901. In the default state, the baffle is in the extended state, and the baffle is higher than the conveying surface. When the upstream station outputs the cigarette box, the cigarette box stops moving after hitting the baffle under the conveying device. This causes the cigarette box to stop at the set position on the conveying device. When the lid opening device is empty, the detection element is triggered, and the baffle driving device 901 drives the baffle to retract, releasing a cigarette box into the lid opening device for lid opening.

[0055] The centering assembly 4 includes a centering element, a centering guide device, a centering drive device 401, and a reversing device. The centering drive device 401 is connected to the inner frame 2. A centering element is provided under each of the two mounting seats. The two centering elements are connected to the centering guide device through the reversing device. The reversing device can drive the two centering elements to make synchronous reverse linear movements under the action of the centering drive device 401. The two centering elements cooperate with each other to restrict the box and center and position it.

[0056] Example 2

[0057] like Figure 12 As shown, the present invention discloses an automatic lid opening control method for a box, comprising the following steps:

[0058] Centering and positioning steps: After the cigarette box is stopped by the baffle assembly 9, the horizontal opening device 701 drives the flip-top assembly 7 to move under the drive of the horizontal opening drive device, so that the first-stage flip-top device 702, the second-stage flip-top device 703 and the blade 704 extend to the maximum position. Then, the centering assembly 4 drives the height measuring assembly 6, the flip-top assembly 7 and the opening assembly to move in a synchronous reverse linear motion, so as to realize the centering and positioning of the box in a synchronous clamping manner. Then, under the control of the center-sealed solenoid valve, the position is locked.

[0059] The cover opening position positioning step: adopting pneumatic driving and parallelogram principle, the vertical movement of the height measuring power device 603 drives the swing lever assembly 602 to act, the swing lever assembly 602 drives the height measuring assembly 6 and the cover opening assembly 7 to act, so that the height measuring assembly 6 and the cover opening assembly 7 make vertical movement along the linear guide rail until the height measuring pressing plate 601 presses the upper skin of the cigarette case, and the ratio of the distance between the height measuring surface of the height measuring assembly 6 and the conveying surface to the distance between the lower surface of the cutter plate 704 and the conveying surface is a fixed ratio, so that the cover opening assembly automatically finds the gap in the case body;

[0060] The cover opening step: the cover suction assembly 8 and the case cover generate vacuum and suck the case cover, so that a gap is generated between the case cover and the case body, the cover opening assembly 7 controls the vertical movement of the cutter plate 704 to insert into the gap, the horizontal cover opening device 701 drives the cover opening assembly 7 to move horizontally, so that the case cover is further opened horizontally to a set position; the secondary cover opening device 703 continues to drive the vertical movement of the cutter plate 704, so as to drive the movement of the case cover; after the case cover is opened horizontally to the set position, the case cover is further opened vertically to the target position;

[0061] The reset step: the centering assembly 4 is reset and the height measuring assembly 6 is reset, the baffle releases the restriction on the case body, and the case body moves to the next station with the conveying device, and the baffle is reset.

[0062] After the case cover of the case body of different specifications is opened, the case cover is immediately opened to the target position, and the subsequent whole process is guided by the guiding device, so that the case cover is prevented from sticking back.

[0063] The cover opening step includes a lower cover opening step and an upper cover opening step, the lower cover opening step is that the cover suction assembly 8 of the lower cover opening station acts on the lower case cover, the cover opening assembly 7 is inserted into the gap between the lower case cover and the case body and the lower case cover is opened downward, and the upper cover opening step is that the cover suction assembly 8 of the upper cover opening station acts on the upper case cover, the cover opening assembly 7 is inserted into the gap between the upper case cover and the case body and the upper case cover is opened upward.

[0064] The control method of the horizontal cover opening device 701 in the centering positioning step: the horizontal cover opening device 701 drives the cover opening assembly 7 to move to the maximum position under the driving of the horizontal cover opening driving device, and after the centering positioning is completed, the horizontal cover opening device 701 is retracted to the starting position; the control method of the horizontal cover opening device 701 in the cover opening position positioning step: the cover opening assembly 7 moves to the cutter plate 704 contacting the two side cigarette cases under the driving of the horizontal cover opening device 701; the control method of the horizontal cover opening device 701 in the cover opening step: on the basis of the position in the cover opening position positioning step, the horizontal cover opening device 701 continues to drive the horizontal movement of the cover opening assembly 7, so that the case cover is further opened horizontally to a set position.

[0065] The specific working control flow is as follows:

[0066] Step 1, when starting to open the box cover work, the baffle extends, triggers the detection element, starts the feeding interlock, and the cigarette box enters the opening box cover work area. After the feeding is started, the cigarette box stops moving after colliding with the baffle under the conveying device.

[0067] Step 2, after the cigarette box is stopped by the baffle assembly, the horizontal cover opening device 701 drives the cover assembly 7 to move under the power of the power device, extends to the maximum position, and then the centering assembly 4 is powered by the power device. The height measuring assembly 6, the cover assembly 7 and the cover suction assembly 8 are driven by the synchronous reverse device to move in a straight line in a synchronous reverse direction, so as to realize the centering positioning of the box body in a synchronous clamping form, and then the position is locked under the control of the center sealing electromagnetic valve. Finally, the horizontal cover opening device 701 is retracted to the starting position; wherein the horizontal cover opening device 701 is a primary clamping device, and the height measuring assembly 6 and the cover suction assembly 8 form a secondary clamping device;

[0068] Step 3, the height measuring assembly 6 is driven by the swing lever assembly 602 to move until the height measuring pressure plate 601 presses the upper skin of the cigarette box. The displacement change amount of the height measuring pressure plate 601 and the cover opening device in the height direction is a fixed ratio. Specifically, since the displacement change amount of the height measuring pressure plate and the cover opening device in the height direction is a fixed ratio of 2:1, the cover suction assembly 8 and the cover assembly 7 can find the gap in the box body 5 regardless of the height of the box body 5. Then, the cover assembly 7 is driven by the horizontal cover opening device 701 to move until the knife plate contacts the adhesive tape on both sides of the cigarette box.

[0069] Step 4, after the cover assembly 7 is in place, the suction cup primary telescopic device 802 and the suction cup secondary telescopic device 803 drive the suction cup 801 to move in the horizontal direction. The vacuum device 804 is connected with the suction cup 801, and a vacuum is generated between the suction cup 801 and the box cover, so that the suction cup 801 sucks the box cover;

[0070] Step 5, after the vacuum is established, the suction cup primary telescopic device 802 is retracted to the starting state, and the box cover moves outward under the action of the suction cup primary telescopic device, so that the box cover is separated from the box body and a gap is generated.

[0071] Step 6, the primary cover device 702 drives 703 and 704 to move together under the drive of the power device, so that the knife plate 704 is inserted into the gap, and then the suction cup secondary telescopic device 803 moves, and the vacuum state is cancelled, so that the suction cup does not suck the box cover. At this time, the knife plate has been inserted into the gap, and the horizontal cover opening device 701 drives the cover assembly 7 to move horizontally, so that the box cover is further opened horizontally to the set position;

[0072] Step 7, when the box cover is horizontally opened to the set position, the second flip cover device 703 drives the knife plate 704 to move vertically under the action of the power device, thereby driving the box cover to move. The box cover is further vertically flipped to the target position after being horizontally opened to the set position. Then, under the action of the guide cover device, the box cover is constrained in position during the conveying process.

[0073] Step 8, the centering assembly 4 is reset and the height measuring assembly 6 is reset. The baffle releases the restriction on the box body, and the box body moves to the next station with the conveying device. The baffle is reset.

[0074] Step 9, the tobacco box is discharged and enters the next link for processing.

[0075] Step 10, the next tobacco box continues to enter the box cover opening work area, and the steps of Step 1-Step 9 are repeated to perform the opening cover task.

[0076] The specific embodiments of the present application are described in detail and in a more specific and detailed manner, but should not be construed as limiting the scope of protection of the present application. It should be noted that, for those skilled in the art, without departing from the technical concept of the present application, a number of modifications and improvements can be made, which are all within the scope of protection of the present application.

Claims

1. A box automatic uncovering mechanism comprising an uncovering device, characterized by, The cover opening device comprises a cover opening assembly and a cover turning assembly (7), which are arranged on a height measuring assembly (6), and are installed on the same work station and arranged on both sides of a conveying device (3); the cover opening assembly is provided with a cover opening work station and a cover closing work station, and a cover suction assembly (8) is arranged on each of the cover opening work station and the cover closing work station; the cover turning assembly comprises a cover turning element, a horizontal cover opening driving device and a vertical cover turning driving device, the horizontal cover opening driving device drives the cover turning element to move in the horizontal direction, and the vertical cover turning driving device drives the cover turning element to move in the vertical direction; the height measuring assembly (6) drives the cover opening assembly and the cover turning assembly (7) to move vertically; The cover suction assembly (8) comprises a suction disc (801), a first suction disc telescopic device (802), a second suction disc telescopic device (803) and a vacuum pumping device (804); the first suction disc telescopic device (802) and the second suction disc telescopic device (803) drive the suction disc (801) to move in the horizontal direction; the vacuum pumping device (804) is connected with the suction disc (801) and generates a vacuum between the suction disc (801) and the box cover, so that the suction disc (801) sucks the box cover; after the suction disc (801) sucks the box cover, the first suction disc telescopic device (802) is retracted to the initial state, and the box cover moves outward under the action of the suction disc (801) and follows the first suction disc telescopic device (802), so that the box cover is separated from the box body and a gap is generated; The cover turning element comprises a horizontal cover opening device (701), a first cover turning device (702), a second cover turning device (703) and a blade plate (704), the blade plate (704) is installed at the lower end of a vertical telescopic rod of the second cover turning device, and the blade plate (704) on the cover opening work station has an upward opening, and the blade plate (704) on the cover closing work station has a downward opening; the second cover turning device (703) is installed at the lower end of a vertical telescopic rod of the first cover turning device (702), the first cover turning device (702) drives the second cover turning device (703) and the blade plate (704) to move vertically under the drive of the vertical cover turning driving device, and the second cover turning device (703) can independently drive the blade plate (704) to move vertically under the drive of the vertical cover turning driving device; the fixed side of the first cover turning device (702) is installed on one side of a horizontal telescopic rod of the horizontal cover opening device (701), and the horizontal cover opening device (701) drives the first cover turning device (702), the second cover turning device (703) and the blade plate (704) to move in the horizontal direction under the drive of the horizontal cover opening driving device; Also include frame (1), inner frame (2) and centering assembly (4), inner frame (2) is installed on frame (1), conveying device (3) and centering assembly (4) are installed on inner frame (2); The linear guide is provided on the inner frame (2), the uncovering assembly, the cover turning assembly (7) and the height measuring assembly (6) are installed on the linear guide of the inner frame (2) through the mounting seat, and are connected with the centering assembly (4), the centering assembly (4) simultaneously drives both sides uncovering assembly, cover turning assembly (7) and height measuring assembly (6) to carry out synchronous reverse linear motion, to synchronous clamping form moves to the box cover, and the centering assembly (4) is simultaneously driven both sides uncovering assembly, cover turning assembly (7) and height measuring assembly (6) to carry out synchronous reverse linear motion, to synchronous clamping form moves to the box cover; The conveying device is provided with a baffle assembly (9), the baffle assembly (9) is arranged in front of the uncovering device, the baffle assembly (9) includes a baffle and a baffle driving device (901), the baffle is in the extended state in the default state, and the baffle is higher than the conveying surface;When the upstream station outputs the tobacco box, the tobacco box stops moving after colliding with the baffle under the conveying of the conveying device;Make the tobacco box stop at the set position on the conveying device, wait for the detection element to trigger when the uncovering device is empty, the baffle driving device (901) drives the baffle to retract, and a tobacco box is released into the uncovering device to carry out uncovering work.

2. An automatic case uncoiling mechanism according to claim 1, characterized in that, The height measuring assembly (6) includes a height measuring pressure plate (601), a swing rod assembly (602) and a height measuring power device (603);The swing rod assembly (602) drives the height measuring pressure plate (601) and the uncovering device to move along the vertical direction under the action of the height measuring power device (603), until the height measuring pressure plate (601) presses the upper skin of the tobacco box, and the displacement change amount of the height measuring pressure plate (601) and the uncovering device in the height direction is a fixed ratio.

3. The automatic lid opening mechanism for a box according to claim 2, characterized in that, The centering assembly (4) includes a centering element, a centering guide device, a centering driving device (401) and a reverse device, the centering guide device (401) is connected with the inner frame (2), one centering element is arranged below each of the two mounting seats, the two centering elements are connected with the centering guide device through the reverse device, the reverse device can drive the two centering elements to carry out synchronous reverse linear motion under the action of the centering driving device (401), and the two centering elements cooperate with each other to limit the box body and centering positioning.

4. A box automatic uncovering control method characterized by comprising: The box automatic uncovering mechanism of claim 3 comprises the following steps: Centering positioning step: after the tobacco box is stopped by the baffle assembly (9), the horizontal uncovering device (701) drives the cover turning assembly (7) to move under the drive of the horizontal uncovering driving device, so that the primary cover turning device (702), the secondary cover turning device (703) and the knife plate (704) are extended to the maximum position, then the centering assembly (4) drives the height measuring assembly (6), the cover turning assembly (7) and the uncovering assembly to carry out synchronous reverse linear motion, to realize the centering positioning of the box body in the form of synchronous clamping, and then under the control of the center seal type electromagnetic valve, the position is locked; The cover opening position positioning step: adopting pneumatic drive and parallelogram principle, through vertical movement of the height measuring power device (603), the swing lever assembly (602) is driven to act, the swing lever assembly (602) drives the height measuring assembly (6) and the cover opening assembly (7) to act, so that the height measuring assembly (6) and the cover opening assembly (7) make vertical movement along the linear guide rail until the height measuring pressing plate (601) presses the upper skin of the cigarette box, and the ratio of the distance between the height measuring surface of the height measuring assembly (6) and the conveying surface to the distance between the lower edge surface of the cutter plate (704) and the conveying surface is a fixed ratio, and the cover opening assembly automatically finds the middle gap of the box body; The cover opening step: the cover suction assembly (8) and the box cover generate vacuum and suck the box cover, so that a gap is generated between the box cover and the box body, the cover opening assembly (7) controls the vertical movement of the cutter plate (704) to insert into the gap, the horizontal cover opening device (701) drives the cover opening assembly (7) to move horizontally, so that the box cover is further opened horizontally to a set position; the secondary cover opening device (703) continues to drive the cutter plate (704) to move vertically, so as to drive the box cover to move; after the box cover is horizontally pulled open to the set position, the box cover is further vertically opened to the target position; The reset step: the centering assembly (4) is reset and the height measuring assembly (6) is reset, the baffle releases the restriction on the box body, and the box body moves to the next station with the conveying device, and the baffle is reset; The cover opening step includes a lower cover opening step and an upper cover opening step, the lower cover opening step is that the cover suction assembly (8) of the lower cover opening station acts on the lower box cover, the cover opening assembly (7) is inserted into the gap between the lower box cover and the box body and the lower box cover is opened downward; the upper cover opening step is that the cover suction assembly (8) of the upper cover opening station acts on the upper box cover, the cover opening assembly (7) is inserted into the gap between the upper box cover and the box body and the upper box cover is opened upward; The control method of the horizontal cover opening device (701) in the centering positioning step: the horizontal cover opening device (701) drives the entire cover opening assembly (7) to move under the drive of the horizontal cover opening driving device, and extends to the maximum position, and after the centering positioning is completed, the horizontal cover opening device (701) is retracted to the starting position; the control method of the horizontal cover opening device (701) in the cover opening position positioning step: the cover opening assembly (7) moves to the cutter plate (704) under the drive of the horizontal cover opening device (701), and the cutter plate (704) contacts the adhesive tape on both sides of the cigarette box; the control method of the horizontal cover opening device (701) in the cover opening step: on the basis of the position in the cover opening position positioning step, the horizontal cover opening device (701) drives the cover opening assembly (7) to move horizontally, so that the box cover is further opened horizontally to a set position.

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