Precise automatic sealing equipment and method thereof

Abstract

The invention discloses precise automatic sealing equipment and a method thereof, the precise automatic sealing equipment is used for conducting sealing operation on packaging bags in a box body, the sealing equipment is provided with a conveying line, a stopping device, a bag lifting device, an air exhaust device and a sealing device, the conveying line is at least provided with a first station, and through the stopping device provided with a measuring mechanism in a matched mode, the sealing device is provided with a second station; the specification and the size of the box can be effectively obtained, meanwhile, the corresponding adjusting mechanisms are arranged on the bag lifting device and the air exhaust device in a matched mode, the devices can be adaptively adjusted to the matched positions according to different box specifications before machining operation, the requirement for adapting to different specifications is met, and the economic benefits of automatic equipment are greatly improved. In addition, all the devices are reasonably arranged on the conveying line, and the production efficiency can be improved.

Description

Technical Field

[0001] The present application generally relates to the technical field of packaging automation equipment, and in particular, to a precise automatic sealing device and method thereof. Background Art

[0002] With the booming development of global trade and the continuous upgrading of the manufacturing industry, packaging automation equipment is increasingly being used in various industrial fields. It has shown significant advantages in improving packaging efficiency, reducing labor costs, and ensuring the stability of packaging quality, and has become an indispensable key component in modern logistics and production.

[0003] The packaging requirements in the display product production process often include boxes and packaging bags of various specifications. Therefore, whether the equipment can be compatible with boxes and packaging bags of various specifications has a great impact on the investment cost of automation equipment. In addition, how to avoid damage to packaging bags during the packaging process and how to improve packaging efficiency are issues that need to be focused on in the design of automation equipment. Summary of the invention

[0004] A main purpose of the present application is to provide a precise automatic sealing device and method thereof, by configuring a measuring mechanism and setting up adjustment mechanisms in conjunction with other processing devices, so as to achieve different processing operations that can flexibly adapt to boxes and packaging bags of different specifications, thereby at least to a certain extent overcoming one or more problems caused by the limitations and defects of related technologies.

[0005] In order to achieve the above application purpose, this application adopts the following technical solutions: According to one aspect of the present application, a precise automatic sealing device is provided for sealing packaging bags in a box, comprising: a conveyor line, wherein at least a first station is arranged on the conveyor line; a docking device, which is arranged correspondingly on the first station, wherein the docking device at least comprises a measuring mechanism, and wherein the docking device can dock the box at the first station in the center according to the measurement result of the measuring mechanism; a bag lifting device, which is arranged correspondingly on the first station, wherein the bag lifting device comprises a plurality of lifting components which can push the inverted packaging bags upward along the vertical edges and corners of the box, and a lifting device which can A first adjusting mechanism capable of driving the plurality of lifting assemblies to adjust along the length and width directions of the box body; an exhaust device, correspondingly arranged on the first workstation, the exhaust device comprising an exhaust mechanism, a bag-stretching mechanism and a second adjusting mechanism, the second adjusting mechanism being capable of adjusting the height of the exhaust mechanism and the bag-stretching mechanism to adapt to the height of the box body, and being capable of adjusting the expanded length of the bag-stretching mechanism to adapt to the length of the box body; a sealing device, correspondingly arranged on both sides of the exhaust device, the sealing device cooperates with the exhaust device, and seals the packaging bag after the exhaust device finishes exhausting.

[0006] According to one embodiment of the present application, the docking device further includes a first positioning mechanism capable of centrally positioning the box along a conveying direction, and a second positioning mechanism capable of centrally positioning the box along a transverse direction, wherein the transverse direction is perpendicular to the conveying direction.

[0007] According to one embodiment of the present application, the first positioning mechanism includes a first double-slider screw arranged along the conveying direction, and a clamping claw that can be lifted and lowered, the first double-slider screw includes two sliders that can move toward or away from each other, each of the sliders is provided with the clamping claw, the first double-slider screw drives the clamping claw to clamp the box in the center; the clamping claw includes a lifting drive member and a clamping block, the lifting drive member is fixed on the slider, and the clamping block is fixed on the top of the lifting drive member.

[0008] According to one embodiment of the present application, the second positioning mechanism includes a second double slider screw arranged in the transverse direction, and a clamping bracket arranged on both sides of the conveying line, the clamping bracket passes through the roller layer of the conveying line and is connected to the sliding seat of the second double slider screw; the clamping bracket is provided with a roller assembly that can roll along the conveying direction.

[0009] According to one embodiment of the present application, the bag lifting device also includes a synchronous lifting mechanism arranged on both sides of the conveying line, and the synchronous lifting mechanisms on both sides are equipped with at least one first adjusting mechanism, and each first adjusting mechanism is configured with at least one pair of pushing-up components; the first adjusting mechanism includes a third double slider screw arranged along the conveying direction, and a transverse driving component arranged on the synchronous lifting mechanism, the third double slider screw is arranged on the transverse driving component, and a pair of pushing-up components are respectively arranged on the sliding table of the third double slider screw.

[0010] According to one embodiment of the present application, the transverse drive assembly includes a transverse drive member, a belt assembly and a mounting seat. The belt assembly is connected to the mounting seat and can drive the mounting seat to reciprocate in the transverse direction. The transverse drive member is installed on the mounting seat. The output end of the transverse drive member can drive the third double slider screw to reciprocate in the transverse direction.

[0011] According to one embodiment of the present application, the push-up assembly includes a pair of push-up members, which are respectively used to cooperate with two adjacent side surfaces corresponding to a vertical edge of the box body, and the top of the push-up member is provided with a supporting portion bent away from the side surface of the box body.

[0012] According to one embodiment of the present application, the measuring mechanism includes a length measuring piece and a width measuring piece. The length measuring piece is arranged at the input end of the first workstation and uses a coding wheel. The width measuring piece is arranged on both sides of the conveyor line and uses a laser displacement sensor.

[0013] According to one embodiment of the present application, the automatic sealing equipment is configured with a second station downstream of the first station, and a third positioning mechanism and a bag pressing device are configured on the second station. The third positioning mechanism can center the box body in the lateral direction, and the bag pressing device has a pressing plate that can reciprocate in the height direction and in the conveying direction, and the pressing plate can extend into the box body and squeeze the packaging bag.

[0014] According to another aspect of the present application, a precise automatic sealing method is provided, using the precise automatic sealing device described above, wherein the precise automatic sealing device comprises a control system, and the control system controls the automatic sealing device to perform the following steps: Starting the conveyor line to carry the box to be sealed to the first station, wherein the box is provided with a packaging bag with an opening turned outward; Controlling the measuring mechanism to measure the specifications of the box, and the docking device to dock the box in the center of the first station according to the specifications of the box; Controlling the first adjusting mechanism to adjust the plurality of the pushing components to positions adapted to the length and width of the box, and then driving the pushing components to lift the packaging bag upwards, and resetting the bag lifting device after the lifting is completed; Controlling the second adjusting mechanism to adjust the air pumping mechanism and the bag-holding mechanism to positions adapted to the length and height of the box, and then driving the bag-holding mechanism and the air pumping mechanism to perform bag-holding and air-pumping actions respectively; The sealing device is controlled to cooperate with the air extraction device to move to a position ready for sealing, and after the air extraction device finishes extracting air, the sealing device is controlled to seal the packaging bag.

[0015] In this application, the docking device equipped with a measuring mechanism can effectively obtain the specifications and dimensions of the box, and at the same time, the corresponding adjustment mechanism is adapted to the bag-lifting device and the air extraction device, so that the respective devices can be adaptively adjusted to the adaptation position before the processing operation according to the different box specifications, meeting the needs of adapting to different specifications and greatly improving the economic benefits of the automatic sealing equipment. In addition, the equipment reasonably configures various devices on the conveyor line, which is conducive to improving production efficiency.

[0016] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and other features and advantages of the present application will become more apparent by describing in detail example embodiments thereof with reference to the attached drawings.

[0018] Figure 1 is a schematic structural diagram of an automatic sealing device according to an exemplary embodiment; Figure 2 yes Figure 1 Schematic diagram of the structure of the automatic sealing device behind the hidden shell; Figure 3 is a schematic structural diagram of a conveying line and a docking device according to an exemplary embodiment; Figure 4 is a schematic structural diagram of a first positioning mechanism according to an exemplary embodiment; Figure 5 is a schematic structural diagram of a second positioning mechanism according to an exemplary embodiment; Figure 6 is a schematic structural diagram of a third positioning mechanism according to an exemplary embodiment; Figure 7 is a schematic structural diagram of a bag carrying device according to an exemplary embodiment; Figure 8 is a schematic structural diagram of a first adjustment mechanism according to an exemplary embodiment; Fig. 9 is a schematic structural diagram of an air extraction device according to an exemplary embodiment; Fig.10 is a schematic structural diagram of a sealing device according to an exemplary embodiment; Fig.11 yes Fig.10 Schematic diagram of the structure of the heat sealing component and the opening and closing component; Fig.12 is a schematic structural diagram of a bag pressing device according to an exemplary embodiment.

[0019] The reference numerals are described as follows: 100, automatic sealing device; 101, housing; 102, equipment support; 10, conveyor line; 20, docking device; 30, bag lifting device; 40, air extraction device; 50, sealing device; 60, bag pressing device; 21, measuring mechanism; 211, length measuring piece; 212, width measuring piece; 22, first positioning mechanism; 23, second positioning mechanism; 24, third positioning mechanism; 25, blocking mechanism; 221, first double slider screw rod; 222, clamping claw; 2211, sliding block; 2221, lifting drive member; 2222, clamping block; 231, second double slider screw; 232, clamping bracket; 2321, clamping rod; 2322, connecting rod; 2323; connecting support; 31, push-up assembly; 32, first adjustment mechanism; 33, synchronous lifting mechanism; 331, lifting drive assembly; 332, synchronous belt assembly; 333, connecting rod; 321, connecting bracket; 323, third double slider screw; 322, lateral drive assembly; 3221, lateral drive Component; 3222, belt assembly; 3223, mounting seat; 3224, mounting bracket; 41, bag support bracket; 42, vacuum assembly; 43, bag support assembly; 44, bag support drive assembly; 45, lifting assembly; 411, support plate; 412, support rod; 421, connecting end; 422, insertion end; 451, slide rail support; 431, support rod; 442, horizontal belt group; 441, bag support drive; 51, heat sealing assembly; 52, opening and closing mechanism; 53, lifting mechanism ; 511, heating element; 512, pressure roller; 521, opening and closing drive assembly; 522, opening and closing bracket; 5221, first mounting plate; 5222, second mounting plate; 5223, opening and closing guide rod; 531, lifting motor; 532, belt assembly; 61, pressure plate; 62, multi-directional drive assembly; 611, pushing part; 612, bending part; 621, vertical drive; 622, conveying direction drive; 6211, first motor; 6212, cylinder; 6213, sliding seat. DETAILED DESCRIPTION

[0020] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this application will be comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their detailed description will be omitted.

[0021] The application scenario of this technical solution is to place a packaging bag inside a box, which contains products or parts, and the opening of the packaging bag is turned outward to the outer surface of the box. The packaging bag needs to be lifted from the box and sealed. There are some automatic sealing machines on the market, but their structures are relatively simple or rough, with problems such as poor compatibility, insufficient efficiency and accuracy, and are difficult to apply to some products with high packaging requirements. This technical solution solves several problems existing in the prior art through supporting adjustment mechanisms, reasonable configuration between devices, and structural optimization.

[0022] Referring to FIGS. 1 to 12 , in one embodiment, the automatic sealing device 100 includes a conveyor line 10, a docking device 20, a bag lifting device 30, an air extraction device 40, a sealing device 50 and a bag pressing device 60. The conveyor line 10 is provided with a first station and a second station. The first station can be provided with a docking device 20, an air extraction device 40 and a sealing device 50, and the second station can be provided with a bag pressing device 60. The docking device 20 is embedded in the conveyor line 10, the bag lifting device 30 is provided on both sides of the conveyor line 10, and the air extraction device 40 and the sealing device 50 are provided above the conveyor line 10. The bag pressing device 60 is provided above the conveyor line 10. When the box body is stopped at the first station by the docking device 20, the packaging bag can be lifted, vacuumized, and heat-sealed in sequence, and then flow into the second station to be pressed by the bag pressing device 60. The operation is smooth and the rhythm is reasonable, which improves the work efficiency. Of course, it can be understood that the automatic sealing device 100 can also include an equipment bracket 102 for carrying various devices, and the conveyor line 10 and various devices can be arranged in a housing 101.

[0023] See also Figure 2 and Figure 3 In one embodiment, the conveyor line 10 can be powered by a roller for conveying, and the conveyor line 10 is provided with a first station and a second station in sequence along the conveying direction.

[0024] See also Figures 2 to 6 In one embodiment, the docking device 20 at least includes a measuring mechanism 21, a first positioning mechanism 22, a second positioning mechanism 23 and a third positioning mechanism 24. The measuring mechanism 21 is used to obtain the size specifications of the box, and the first positioning mechanism 22 and the second positioning mechanism 23 are used to position the box on the first station and center the box in the conveying direction and in the transverse direction, that is, to center the box front and back and left and right. The third positioning mechanism 24 is used to position the box on the second station and center the box left and right.

[0025] In a specific embodiment, the measuring mechanism 21 includes a length measuring member 211 and a width measuring member 212. The length measuring member 211 is arranged at the input end of the first station and can be a coding wheel. The width measuring member 212 is arranged on both sides of the conveyor line 10 and can be a laser displacement sensor.

[0026] In a specific implementation, the first positioning mechanism 22 is arranged in the middle of the assembly line, and the first positioning mechanism 22 includes a first double-slider screw 221 and a clamping jaw 222. The first double-slider screw 221 includes two sliders 2211 that can move toward or away from each other, and each slider 2211 is provided with a clamping jaw 222. The first double-slider screw 221 drives the clamping jaw 222 to clamp or release the box in the middle. The clamping jaw 222 includes a lifting drive 2221 and a clamping block 2222. The lifting drive 2221 is fixed on the slider 2211, and the clamping block 2222 is fixed on the top of the lifting drive 2221. The lifting drive 2221 drives the clamping block to rise and fall in the vertical direction, rising when the box needs to be clamped, and falling when the box needs to be released.

[0027] In a specific embodiment, the second positioning mechanism 23 includes a second double slider screw 231 and a clamping bracket 232. The second double slider screw 231 is arranged in the transverse direction, and the clamping bracket 232 is arranged on both sides of the conveyor line 10. The clamping bracket 232 includes a clamping rod 2321, a connecting rod 2322 and a connecting support 2323. The connecting support 2323 is connected to the sliding seat of the second double slider screw 231. The second double slider screw 231 can drive the clamping brackets 232 on both sides to move toward each other or move in opposite directions. The connecting rod 2322 extends upward from the roller layer of the conveyor line 10. The clamping rod 2321 is arranged at the upper end of the connecting rod 2322. The clamping rod 2321 is provided with a roller assembly that can roll along the conveying direction. The rolling assembly can reduce the friction between the clamping rod 2321 and the box body to avoid damage to the box body.

[0028] In a specific implementation, the third positioning mechanism 24 is arranged near the second positioning mechanism 23, at which the box is positioned in the center of the left and right sides. Positioning mechanisms are respectively arranged on two workstations, which is conducive to independent positioning and processing operations of each workstation, and avoids the use of a common positioning structure to affect the beat. The structure of the third positioning mechanism 24 is similar to that of the second positioning mechanism 23. The third positioning mechanism 24 also includes a second double slider screw 231 and a clamping bracket 232. The second double slider screw 231 can drive the clamping brackets 232 on both sides to move toward each other or move away from each other. Of course, it can be understood that the third positioning mechanism 24 can be provided without a roller assembly. When the box flows from the first workstation to the second workstation, the speed is slow, and the friction between the box and the mechanism is small and not easy to be damaged.

[0029] In a specific implementation, the docking device 20 may further include a blocking mechanism 25, which is disposed on the second station and located at the output end of the second station for stopping the box on the second station.

[0030] See also Figure 2 , Figure 7 and Figure 8 In one embodiment, the bag lifting device 30 includes a plurality of push-up components 31, a first adjustment mechanism 32 and a synchronous lifting mechanism 33. The plurality of push-up components 31 can push the packaging bag upward along the vertical edges and corners of the box. The first adjustment mechanism 32 carries the push-up components 31 and can drive the plurality of push-up components 31 to adjust to the length and width of the box. The synchronous lifting mechanism 33 is respectively arranged on both sides of the conveyor line 10, and each side is respectively correspondingly arranged with a first adjustment mechanism 32. The synchronous lifting mechanism 33 can synchronously drive the first adjustment mechanisms 32 on both sides to reciprocate in the vertical direction.

[0031] In a specific embodiment, the synchronous lifting mechanism 33 includes a lifting drive assembly 331 and a synchronous belt assembly 332, and the synchronous belts are respectively arranged on both sides of the conveyor line 10. The synchronous belt assembly 332 is arranged in the vertical direction, the lifting drive assembly 331 is connected to the synchronous belt assembly 332 on one side, and the synchronous belt assemblies 332 on both sides are connected by a connecting rod 333. The synchronous belt assembly 332 includes a belt and pulleys respectively arranged at the upper and lower ends, the belt cooperates with the pulley, and a fixing clip is arranged on the belt, and the fixing clip is fixed on the first adjustment mechanism 32.

[0032] In a specific embodiment, the first adjustment mechanism 32 includes a connecting bracket 321, a third double-slider screw rod 323 and a transverse driving assembly 322. The connecting bracket 321 is installed with a fixing clamp, and the connecting bracket 321 is connected to the synchronous lifting mechanism 33. The third double-slider screw rod 323 carries the push-up assembly 31, and can adjust the distance between the two push-up assemblies 31 on the same side to adapt to the length of the box along the conveying direction. The output end of the transverse driving assembly 322 is connected to the third double-slider screw rod 323, and can drive the third double-slider screw rod 323 to linearly reciprocate in the transverse direction.

[0033] In a specific implementation, the transverse drive assembly 322 includes a transverse drive member 3221, a belt assembly 3222, and a mounting seat 3223. The belt assembly 3222 is mounted on the connecting bracket 321, the belt assembly 3222 is connected to the mounting seat 3223 and can drive the mounting seat 3223 to reciprocate in the transverse direction, the transverse drive member 3221 is mounted on the mounting seat 3223, and the output end of the transverse drive member 3221 can directly drive the third double slider screw 323 to reciprocate in the transverse direction. By setting the belt assembly 3222 and the transverse drive member 3221 to perform two-stage adjustment in the transverse direction, on the one hand, it can adapt to a wider range of box specifications, and on the other hand, it improves the accuracy of adjustment.

[0034] Preferably, the belt assembly 3222 includes a mounting bracket 3224, a slide rail is provided on the top of the mounting bracket 3224, the mounting seat 3223 is connected to the belt assembly 3222 through a belt fixing clip, and the mounting seat 3223 cooperates with the slide rail. The use of the belt assembly 3222 and the slide rail can make the lateral adjustment operation more stable and avoid damage to the box.

[0035] In a specific embodiment, the structure of the third double slider screw rod 323 is similar to that of the first double slider screw rod 221, and can be understood with reference to the structure of the first double slider screw rod 221. A push-up assembly 31 is respectively provided on the two slide seats of the third double slider screw rod 323, and the push-up assemblies 31 on both sides of the conveyor line 10 can respectively correspond to the four vertical corners of the box body. Preferably, the push-up assembly 31 includes a pair of push-up members, and the pair of push-up members are respectively used to cooperate with the adjacent two side surfaces corresponding to a vertical corner of the box body, and the top of the push-up member is provided with a supporting portion bent away from the side surface of the box body.

[0036] In another embodiment, the pushing component 31 includes a bent straw, which can suck the packaging bag and lift the packaging bag up as the pushing component 31 rises.

[0037] See also Fig. 9 In one embodiment, the vacuum device 40 includes a bag support 41, a vacuum assembly 42, a bag support assembly 43, a bag support driving assembly 44 and a lifting assembly 45. The bag support 41 and the lifting assembly 45 are arranged on the equipment support 102. The lifting assembly 45 is connected to the bag support 41 and drives the bag support 41 to reciprocate in the vertical direction. The vacuum assembly 42 and the bag support driving assembly 44 are arranged on the bag support 41, and the bag support driving assembly 44 is used to drive the bag support assembly 43 to open and close.

[0038] In a specific embodiment, the lifting assembly 45 includes a slide rail support 451 and a slide rail motor (specific numbers are not mentioned and can be supplemented as needed), the slide rail motor is arranged on the equipment bracket 102, the slide rail support 451 cooperates with the slide table of the slide rail motor, and the slide rail support 451 is connected to the bag support bracket 41. The bag support bracket 41 includes a support plate 411 and a support rod 412, and may include a plurality of guide columns, the mounting plate is fixed to one end of the guide column, and the guide column is connected to the equipment bracket 102 in a manner that it can shuttle up and down.

[0039] In a specific embodiment, the bag support assembly 43 includes at least two support rods 431 extending into the packaging bag in a vertical direction, and the two support rods 431 can be driven to move closer or away from each other in the conveying direction to support the packaging bag; the bag support driving assembly 44 is connected to the support rods 431, and the bag support driving assembly 44 drives the two support rods 431 to move toward each other or away from each other in the conveying direction. Preferably, the bag support driving assembly 44 includes a horizontal belt group 442 and a bag support driving member 441, the horizontal belt group 442 includes a belt and pulleys matching the two ends of the belt, the bag support driving member 441 is connected to one end of the pulley, and the two support rods 431 are respectively connected to the two sides of the belt. Preferably, the support rod 431 adopts a long strip plate, which can support the packaging bag to be flat, and has the advantages of not being easy to damage the packaging bag and being easy to seal.

[0040] Preferably, the bag support bracket 41 includes a support plate 411 and a support rod 412, the support rod 412 is connected to the equipment bracket 102 in a manner that it can pass up and down, the bottom of the support rod 412 is connected to the support plate 411, and the bag support assembly 43 and the air extraction assembly 42 are arranged on the support plate 411. A slide rail can also be arranged on the bag support bracket 41, and slide rails are respectively arranged on both sides of the bag support drive assembly 44. The belt is connected to the support rod 431 through a support rod fixing clamp, and the support rod fixing clamp is installed on the slide rail, and the support rod fixing clamp can reciprocate on the slide rail.

[0041] In a specific embodiment, the vacuum assembly 42 includes a long vacuum nozzle for extending into the packaging bag, and the number of the long vacuum nozzles can be one or more. Preferably, the long vacuum nozzle is made in one piece, and the long vacuum nozzle includes a connecting end 421 and an inserting end 422. The connecting end 421 is connected to the air pump through an air pipe, the connecting end is cylindrical, and the inserting end 422 is flat, and the connecting end 421 and the inserting end 42 are smoothly transitioned. The method of smoothly transitioning from a cylindrical shape to a flat shape takes into account the need for smoother airflow and also avoids the problem that the long vacuum nozzle stretches the packaging bag and is not conducive to sealing.

[0042] See also Fig.10 and Fig.11 In one embodiment, the sealing device 50 includes a heat sealing assembly 51, an opening and closing mechanism 52 and a lifting mechanism 53. The heat sealing assembly 51 is installed on the opening and closing mechanism 52. The opening and closing mechanism 52 can drive the heat sealing assembly 51 to open and close to achieve the heat sealing operation. The lifting mechanism 53 is connected to the opening and closing mechanism 52, and the lifting mechanism 53 drives the opening and closing mechanism 52 to reciprocate in the vertical direction as a whole.

[0043] In a specific embodiment, the heat sealing assembly 51 at least includes a heating element 511 and a pressure roller 512 that open and close in the transverse direction. The opening and closing mechanism 52 includes opening and closing drive assemblies 521 respectively arranged on both sides, and the opening and closing drive assemblies 521 on both sides cooperate with the heating element 511 and the pressure roller 512 respectively to drive the heating element 511 and the pressure roller 512 to merge toward each other or open in opposite directions.

[0044] Preferably, the opening and closing mechanism 52 further includes an opening and closing bracket 522, the opening and closing bracket 522 includes a first mounting plate 5221 and a second mounting plate 5222, the heating element 511 and the pressure roller 512 are respectively mounted on the first mounting plates 5221 arranged on both sides, and the second mounting plates 5222 are respectively arranged on both sides to cooperate with the lifting mechanism 53. The opening and closing drive components 521 on both sides are respectively mounted on the second mounting plates 5222, and the output ends of the opening and closing drive components 521 on both sides are respectively connected to the first mounting plates 5221 on both sides, so that the opening and closing drive components 521 can drive the first mounting plates 5221 to reciprocate in the lateral direction. The opening and closing drive components 521 can include multiple opening and closing motors, for example, four opening and closing motors, and an opening and closing motor is respectively arranged at both ends of each second mounting plate 5222, which can smoothly drive the movement of the first mounting plate 5221. The opening and closing mechanism 52 further includes an opening and closing guide rod 5223 , both ends of which are fixed to the second mounting plates 5222 on both sides, and the first mounting plates 5221 on both sides are respectively penetrated through the opening and closing guide rod 5223 .

[0045] In a specific embodiment, the lifting mechanism 53 includes a lifting motor 531 and belt assemblies 532 respectively arranged on both sides of the conveyor line 10, the belt assemblies 532 on both sides are connected by a connecting rod, and the lifting motor 531 is connected to one side of the belt assembly 532. The lifting mechanism 53 can be similar to the synchronous lifting mechanism 33 in the bag lifting device 30, and the two are arranged side by side along the conveying direction, so that each mechanism can be reasonably arranged at the first station.

[0046] See also Fig.12 In one embodiment, the bag pressing device 60 includes a pressing plate 61 and a multi-directional driving assembly 62. The pressing plate 61 can be driven to move downward and press the packaging bag, and the multi-directional driving assembly 62 is connected to the pressing plate 61 to drive the pressing plate 61 to move in at least two directions. Preferably, the multi-directional driving assembly 62 at least includes a vertical driving 621 and a conveying driving 622, the vertical driving 621 can drive the pressing plate 61 to reciprocate in the vertical direction, and the conveying driving 622 can drive the pressing plate 61 to reciprocate in the conveying direction.

[0047] In a specific embodiment, the pressing plate 61 includes a pushing portion 611 and a bending portion 612. The pushing portion 611 is provided with bending portions 612 at both ends along the conveying direction. The bending portions 612 are bent downward relative to the pushing portion 611. Preferably, the pushing portion 611 is provided with a plurality of vents.

[0048] In a specific embodiment, the vertical drive 621 includes a first motor 6211, a cylinder 6212 and a sliding seat 6213. The first motor 6211 is arranged on the conveying direction drive 622. The sliding seat 6213 is installed on the slide of the first motor 6211. The cylinder 6212 is installed on the sliding seat 6213, and the output end of the cylinder 6212 is connected to the pressing plate 61. The sliding seat 6213 is provided with a plurality of guide members connected to the pressing plate 61. The conveying direction drive 622 includes a linear motor and a mounting block. The first motor 6211 is installed on the mounting block. The mounting block is installed on the linear motor and reciprocates along the conveying direction.

[0049] In one embodiment, a precise automatic sealing method is provided, using the precise automatic sealing device described above, wherein the precise automatic sealing device includes a control system, and the control system controls the automatic sealing device to perform the following steps: Step 101: Start the conveyor line to carry the box to be sealed to the first station; Step 102: Control the measuring mechanism to measure the specifications of the box, and the docking device docks the box at the first station in the center according to the specifications of the box. Specifically, the measuring mechanism obtains the length of the box through the encoder wheel and measures the width of the box through the laser displacement sensor.

[0050] Step 103: Control the first adjusting mechanism to adjust the plurality of the pushing components to positions that match the length and width of the box, and then drive the pushing components to lift the packaging bag upwards, and reset the bag lifting device after the lifting is completed.

[0051] Step 104: Control the second adjusting mechanism to adjust the air pumping mechanism and the bag-holding mechanism to positions adapted to the length and height of the box, and then drive the bag-holding mechanism and the air pumping mechanism to perform bag-holding and air-holding actions, respectively.

[0052] Step 105: Control the sealing device to cooperate with the vacuum device to move to a position ready for sealing, and control the sealing device to seal the packaging bag after the vacuum device finishes vacuuming.

[0053] Preferably, the automatic sealing method may further include step 106: controlling the conveyor line to carry the box to the second station, and controlling the bag pressing device to move to an adaptable position according to the length of the box, and then driving the pressing plate to press down, and resetting after the operation is completed.

[0054] In the application examples, the terms "matching", "connection" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection. For ordinary technicians in this field, the specific meanings of the above terms in the application examples can be understood according to specific circumstances.

[0055] The above are only preferred embodiments of the application embodiments and are not intended to limit the application embodiments. For those skilled in the art, the application embodiments may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the application embodiments shall be included in the protection scope of the application embodiments.

Claims

1. A precise automatic sealing device for sealing packaging bags in a box, characterized in that: include: A conveyor line, wherein at least a first workstation is configured on the conveyor line; A docking device, correspondingly configured on the first station, the docking device at least comprises a measuring mechanism, and the docking device can dock the box body at the first station in a centered manner according to the measurement result of the measuring mechanism; A bag lifting device, correspondingly arranged at the first station, comprising a plurality of lifting components capable of pushing the everted packaging bags upward along the vertical edges and corners of the box body, and a first adjusting mechanism capable of driving the plurality of lifting components to adjust along the length direction and the width direction of the box body; An air extraction device is correspondingly arranged on the first workstation, the air extraction device comprises an air extraction mechanism, a bag-holding mechanism and a second adjustment mechanism, the second adjustment mechanism can adjust the height of the air extraction mechanism and the bag-holding mechanism according to the height of the box, and can adjust the opening length of the bag-holding mechanism according to the length of the box; The sealing device is correspondingly arranged on both sides of the exhaust device, cooperates with the exhaust device, and seals the packaging bag after the exhaust device finishes exhausting.

2. The precise automatic sealing device according to claim 1, characterized in that: The docking device further comprises a first positioning mechanism capable of centrally positioning the box along a conveying direction, and a second positioning mechanism capable of centrally positioning the box along a transverse direction, wherein the transverse direction is perpendicular to the conveying direction.

3. The precise automatic sealing device according to claim 2, characterized in that: The first positioning mechanism includes a first double-slider screw arranged along the conveying direction, and a clamping claw that can be lifted and lowered, the first double-slider screw includes two sliders that can move toward or away from each other, each of the sliders is provided with the clamping claw, and the first double-slider screw drives the clamping claw to clamp the box in the center; The clamping claw comprises a lifting driving member and a clamping block, wherein the lifting driving member is fixed on the sliding block, and the clamping block is fixed on the top of the lifting driving member.

4. The precise automatic sealing device according to claim 3, characterized in that: The second positioning mechanism includes a second double-slider screw rod arranged in the transverse direction, and a clamping bracket arranged on both sides of the conveying line, and the clamping bracket passes through the roller layer of the conveying line and is connected to the sliding seat of the second double-slider screw rod; The clamping bracket is provided with a roller assembly capable of rolling along the conveying direction.

5. The precise automatic sealing device according to claim 1, characterized in that: The bag lifting device further comprises synchronous lifting mechanisms disposed on both sides of the conveying line, the synchronous lifting mechanisms on both sides are equipped with at least one of the first adjusting mechanisms, and each of the first adjusting mechanisms is equipped with at least one pair of the pushing components; The first adjustment mechanism includes a third double-slider screw arranged along the conveying direction, and a transverse driving assembly arranged on the synchronous lifting mechanism, the third double-slider screw is arranged on the transverse driving assembly, and a pair of pushing assemblies are respectively arranged on the sliding table of the third double-slider screw.

6. The precise automatic sealing device according to claim 5, characterized in that: The transverse drive assembly includes a transverse drive member, a belt assembly and a mounting seat. The belt assembly is connected to the mounting seat and can drive the mounting seat to reciprocate in the transverse direction. The transverse drive member is installed on the mounting seat. The output end of the transverse drive member can drive the third double slider screw to reciprocate in the transverse direction.

7. The precise automatic sealing device according to claim 1, characterized in that: The push-up assembly includes a pair of push-up members, which are respectively used to cooperate with two adjacent side surfaces corresponding to a vertical corner of the box body, and the top of the push-up member is provided with a supporting portion bent away from the side surface of the box body.

8. The precise automatic sealing device according to claim 1, characterized in that: The measuring mechanism includes a length measuring piece and a width measuring piece. The length measuring piece is arranged at the input end of the first station and uses a coding wheel. The width measuring piece is arranged on both sides of the conveying line and uses a laser displacement sensor.

9. The precise automatic sealing device according to claim 1, characterized in that: The automatic sealing equipment is provided with a second station downstream of the first station, and a third positioning mechanism and a bag pressing device are provided on the second station. The third positioning mechanism can center the box body in the transverse direction, and the bag pressing device has a pressing plate that can reciprocate in the height direction and in the conveying direction, and the pressing plate can extend into the box body and squeeze the packaging bag.

10. A precise automatic sealing method, characterized in that: The precise automatic sealing device according to any one of claims 1 to 9 is applied, wherein the precise automatic sealing device comprises a control system, and the control system controls the automatic sealing device to perform the following steps: Starting the conveyor line to carry the box to be sealed to the first station, wherein the box is provided with a packaging bag with an opening turned outward; Controlling the measuring mechanism to measure the specifications of the box, and the docking device to dock the box in the center of the first station according to the specifications of the box; Controlling the first adjusting mechanism to adjust the plurality of the pushing components to positions adapted to the length and width of the box, and then driving the pushing components to lift the packaging bag upwards, and resetting the bag lifting device after the lifting is completed; Controlling the second adjusting mechanism to adjust the air pumping mechanism and the bag-holding mechanism to positions adapted to the length and height of the box, and then driving the bag-holding mechanism and the air pumping mechanism to perform bag-holding and air-pumping actions respectively; The sealing device is controlled to cooperate with the air extraction device to move to a position ready for sealing, and after the air extraction device finishes extracting air, the sealing device is controlled to seal the packaging bag.

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