Wafer box automatic bagging and packaging device and packaging method

Abstract

The invention belongs to the technical field of wafer box packaging, and particularly relates to an automatic bagging and packaging device for wafer boxes and a packaging method of the automatic bagging and packaging device for the wafer boxes. Comprising a packaging table, a bagging position arranged on the packaging table, a packaging bag storage frame arranged on the packaging table, a bag taking device for clamping packaging bags on the packaging bag storage frame to the bagging position, a bag opening device for opening the packaging bags at the bagging position, a pushing device for pushing wafer boxes into the opened packaging bags and a heat sealing device for conducting heat sealing on the packaging bags. Through cooperation of the bag taking device, the bag opening device, the material pushing device and the heat sealing device, the wafer box subjected to labeling work can be pushed into a packaging bag opened by the bag opening device through the material pushing device, then bag folding, vacuumizing and heat sealing treatment are conducted through the heat sealing device, packaging of the wafer box is completed, the whole process is high in automation degree, and the packaging efficiency is improved. Manual participation is greatly reduced, and the packaging efficiency of the wafer box is effectively improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of wafer box packaging, and in particular relates to an automatic wafer box bagging and packaging device and a packaging method. Background Art

[0002] Before photolithography, wafers need to undergo processes such as chamfering, polishing, and cleaning. After completing the above processes, the wafers are placed in clean wafer packaging boxes and vacuum-packed in double-layer aluminum foil bags for storage and transportation. The vacuum packaging process of the aluminum foil bags in the wafer packaging boxes is very important. It can effectively protect the wafer packaging boxes from damage and isolate particulate contamination, ensuring the yield rate of the subsequent photolithography process of the wafers. The vacuum packaging of the aluminum foil bags in the wafer packaging boxes is currently still done manually, including bagging, vacuuming, folding, sealing with tape, and affixing information labels. This packaging method is inefficient, requires a lot of manpower, has high labor costs, and is difficult to ensure cleanliness. Chinese patent CN111619899A discloses an automatic packaging device for wafer boxes, including a bag-entering module, a bag-retrieving device, a packaging platform and a sealing module. After the wafer box is sent into the expanded packaging bag by the bag-entering module, it will be transferred to the sealing module for heat sealing. However, due to its own material problems, the packaging bag is relatively soft and thin, and is easily damaged during transportation. In addition, the bag opening of the packaging bag is soft and collapsed. When transferring from the bag-entering module to the sealing module, relative care is required to ensure that the bag opening can enter the sealing module for heat sealing. The transportation requirements are high and the packaging efficiency is low, and improvement is urgently needed. Summary of the Invention

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a wafer box automatic bagging and packaging device and packaging method.

[0004] The present invention adopts the following technical solutions: An automatic wafer box bagging and packaging device performs bagging and heat-sealing on labeled wafer boxes, comprising a packaging table, a bagging position provided on the packaging table, a packaging bag storage rack provided on the packaging table, a bag-taking device for clamping packaging bags on the packaging bag storage rack to the bagging position, a bag-opening device for opening the packaging bags at the bagging position, a material-pushing device for pushing the wafer box into the opened packaging bag, and a heat-sealing device for heat-sealing the packaging bag; The heat sealing device comprises two folding bag seats which can be moved toward each other and are arranged on the packaging table, two folding bag knives respectively arranged on the two folding bag seats, a negative pressure tube arranged on the inner side of one of the folding bag knives, an upper heat sealing assembly and a lower heat sealing assembly arranged opposite to each other in the upper and lower directions, a first moving mechanism which is arranged on the packaging table to drive the folding bag seat to move, a second moving mechanism which drives the two folding bag seats to move toward each other, an upper positioning plate which is arranged on the upper heat sealing assembly and extends downward, and a lower positioning plate which is arranged on the lower heat sealing assembly and extends upward and is opposite to the upper positioning plate, the two folding bag knives are respectively opposite to the two side surfaces of the packaging bag, the upper positioning plate and the lower positioning plate are relatively located on the side opposite to the wafer box and the negative pressure tube, the first moving mechanism drives the folding bag seat to move close to the bagging position so that the negative pressure tube extends into the packaging bag, and the folding bag knife on the same side is located on the outside of the packaging bag; the second moving mechanism drives the two folding bag knives to move toward each other so that the folding bag knives drive the side surface of the packaging bag in contact with them to move inward to complete the bag folding processing of the bag opening of the packaging bag; The negative pressure tube includes a main section connected to an external negative pressure source and a flat section that can be inserted into the packaging bag; The lower heat sealing assembly includes a lower heat sealing seat arranged on the packaging table, a lower heat sealing head arranged on the lower heat sealing seat and movable up and down, a first heat sealing cylinder connected to and driving the lower heat sealing head to move, a mounting plate for installing the first heat sealing cylinder, and a second heat sealing cylinder connected to the mounting plate and arranged on the lower heat sealing seat; the lower positioning plate is arranged on the mounting plate and extends upward; when the negative pressure tube is working, the second heat sealing cylinder drives the mounting plate to move upward and drives the lower heat sealing head to contact the bottom surface of the packaging bag; after the negative pressure tube completes its work, the first moving mechanism drives the bag folding seat to move and drives the negative pressure tube to be pulled out of the packaging bag; at this time, the first heat sealing cylinder drives the lower heat sealing head to move upward and cooperates with the upper heat sealing assembly to clamp the folding part of the packaging bag for heat sealing.

[0005] Preferably, the bag taking device includes a first bag taking rack arranged on the packaging table and extending in a direction close to the bag filling position, a second bag taking rack arranged vertically on the first bag taking rack and extending in a direction close to the packaging bag storage rack, a support plate movably arranged on the first bag taking rack for placing packaging bags, a correction mechanism located below the second bag taking rack for correcting the position of the packaging bags, a bag taking assembly movably arranged on the second bag taking rack for clamping the packaging bags, a first driving assembly arranged on the first bag taking rack to drive the support plate to move, and a second driving assembly arranged on the second bag taking rack to drive the bag taking assembly to move, the bag taking assembly sucks the packaging bags from the packaging bag storage rack onto the support plate, and the first driving assembly drives the support plate with the packaging bags placed thereon to move to the bag filling position.

[0006] Preferably, the correcting mechanism comprises a correcting frame movably arranged below the second bag taking frame, two first correcting assemblies oppositely arranged on two sides of the correcting frame, two second correcting assemblies oppositely arranged on two sides of the correcting frame, and a jacking cylinder connected to and driving the correcting frame to move up and down, the two first correcting assemblies and the two second correcting assemblies are alternately arranged on four outer sides of the correcting frame, the first correcting assembly comprises a correcting plate movably arranged on the correcting frame to approach the opposite outer side, and a first correcting cylinder arranged on the correcting frame to drive the correcting plate to move, the second correcting assembly comprises a correcting column movably arranged on the correcting frame to approach the opposite outer side, and a second correcting cylinder arranged on the correcting frame to drive the correcting column to move, and a strip-shaped moving hole is arranged on the supporting plate for the opposite correcting column to pass through.

[0007] Preferably, the bag taking assembly comprises a moving seat movably arranged on the second bag taking frame, a bag taking plate arranged at a lower end of the moving seat to extend into the packaging bag storage frame, and a plurality of bag taking nozzles arranged at a lower end of the bag taking plate.

[0008] Preferably, the packaging bag comprises two upper edges oppositely arranged on a top surface thereof, and two lower edges oppositely arranged on a bottom surface thereof, the bag supporting device comprises a suction bag supporting assembly arranged above the bagging position, and two clamping bag supporting assemblies oppositely arranged on the packaging table and respectively located on two sides of the packaging bag, the two clamping bag supporting assemblies are respectively opposite to the two upper edges, the clamping bag supporting assembly comprises a clamping bag supporting seat, an upper clamping member movably arranged on the clamping bag supporting seat to clamp the opposite upper edge, a lower clamping member movably arranged on the clamping bag supporting seat to clamp the opposite lower edge, a first lifting member arranged on the clamping bag supporting seat to drive the upper clamping member to move, and a second lifting member arranged on the clamping bag supporting seat to drive the lower clamping member to move.

[0009] Preferably, the suction bag supporting assembly comprises a suction bag supporting frame, a lifting plate movably arranged on the suction bag supporting frame to move up and down, a fixed nozzle arranged on the lifting plate, an adjusting plate movably arranged on the lifting plate to move relative to the fixed nozzle, a moving nozzle arranged on the adjusting plate and opposite to the fixed nozzle, a first lifting cylinder connected to and driving the lifting plate to move, and a second lifting cylinder arranged on the suction bag supporting frame and connected to and driving the first lifting cylinder to move up and down, and the moving nozzle and the fixed nozzle can be adsorbed and fixed on the top surface of the packaging bag.

[0010] Preferably, the pushing device comprises a moving frame movably arranged on the packaging table to approach the bagging position, a pushing plate arranged on the moving frame to place the wafer box, a first pushing cylinder arranged on the moving frame to drive the pushing plate to approach the bagging position, and a second pushing cylinder arranged on the pushing plate to push the wafer box into the packaging bag.

[0011] A wafer box packaging method based on any one of the above bagging and packaging devices, specifically comprising the following steps: Step one, the wafer box with the attached information label is sent into the pushing device, the bag taking device takes the packaging bag from the packaging bag storage rack and moves to the bagging position, the bag supporting device supports the packaging bag on the bagging position, and the pushing device pushes the wafer box into the supported packaging bag; Step two, the bag folding seat moves close to the bagging position, drives the two bag folding knives and the negative pressure pipe to move close to the packaging bag, so that the two bag folding knives are respectively located outside the opposite two side surfaces of the packaging bag, and the negative pressure pipe extends into the packaging bag, then the second moving mechanism drives the two bag folding knives to move towards each other, drives the side surface of the packaging bag in contact with it to move inward to the position, and completes the bag folding processing of the bag opening of the packaging bag; Step three, the upper heat sealing assembly moves downward to contact the upper surface of the packaging bag folding position, the lower heat sealing assembly first moves upward to contact the lower surface of the packaging bag folding position, the negative pressure pipe works to perform vacuumizing processing on the inside of the packaging bag, and the wafer box is limited by the upper positioning plate and the lower positioning plate opposite to each other, and cannot move; when the negative pressure pipe completes the vacuumizing processing, the first moving mechanism drives the bag folding seat to move away from the bagging position, and then drives the negative pressure pipe to separate from the packaging bag, at this time, the lower heat sealing assembly further moves upward to cooperate with the upper heat sealing assembly to clamp the packaging bag folding position for heat sealing processing, so as to complete the vacuumizing and heat sealing processing of the packaging bag after the bag folding processing.

[0012] From the above description of the application, compared with the prior art, the beneficial effects of the application are: by limiting the structure of the bagging and heat sealing device, by cooperating the bag taking device, the bag supporting device, the pushing device and the heat sealing device, the packaging bag can complete the pushing of the wafer box, the bag folding processing and the heat sealing processing in the fixed position of the bagging position, to complete the packaging of the wafer box, without transferring in multiple devices to complete the above operation, to solve the problem that the packaging bag is soft and thin and is easy to be damaged in the transfer process, the overall structure is compact, the whole process is highly automated, greatly reduces the participation of manual work, effectively improves the packaging efficiency of the wafer box, and also can improve the yield of the wafer box packaging; wherein, the negative pressure pipe and the bag folding knife are specifically limited, and cooperate with the upper heat sealing assembly and the lower heat sealing assembly to work, so that the negative pressure pipe can work with the bag folding knife, when the packaging bag folding processing is completed, the negative pressure pipe is already located in the packaging bag, and the vacuumizing processing can be started; when the negative pressure pipe completes the vacuumizing and withdraws outward, the lower heat sealing assembly can further move upward to cooperate with the upper heat sealing assembly to clamp the bag folding position of the packaging bag for heat sealing processing, the overall operation is good in continuity, and the efficiency and yield of the vacuum packaging of the wafer box can be ensured. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a structure schematic view of the bagging and packaging device; Figure 2 It is a part of the structure schematic of the bagging and packaging device Figure 1 ; Figure 3 Partial structure of bagging and packaging device Figure 2 Figure 4 Partial structure of bagging and packaging device Figure 3 ; Figure 5 Structure of bag taking device Figure 1 ; Figure 6 Structure of bag taking device Figure 2 ; Figure 7 Structure of bag supporting device Figure 8 Structure of bag supporting device Figure 9 Structure of first bag supporting device Figure 10 Structure of second bag supporting device Figure 11 Structure of pushing device and bag folding knife Figure 12 Structure of upper heat sealing device and lower heat sealing device Figure 13 Structure of bag from bag supporting to bag folding ​In the figure, 1, packaging table; 2, packaging bag storage rack; 3, bag taking device; 4, bag supporting device; 5, pushing device; 6, heat sealing device; 7, packaging bag; 11, bagging position; 21, storage rack body; 22, bag pressing frame; 23, bag pressing roller; 24, Z-direction moving module; 31, first bag taking frame; 32, second bag taking frame; 33, support plate; 331, negative pressure suction nozzle; 332, strip-shaped moving hole; 34, correction mechanism; 341, correction frame; 342, first correction assembly; 343, second correction assembly; 344, jacking air cylinder; 345, correction plate; 346, first correction air cylinder; 347, correction column; 348, second correction air cylinder; 35, bag taking assembly; 351, moving seat; 352, bag taking plate; 353, bag taking suction nozzle; 36, first driving assembly; 37, second driving assembly; 41, suction bag supporting assembly; 411, suction bag supporting frame; 412, lifting plate; 413, fixed suction nozzle; 414, adjusting plate; 415, moving suction nozzle; 416, first lifting air cylinder; 417, second lifting air cylinder; 42, first clamping bag supporting assembly; 421, clamping bag supporting seat; 422, upper clamping piece; 423, lower clamping piece; 424, first lifting piece; 425, second lifting piece; 426, upper clamping frame; 427, upper clamping pneumatic clamping jaw; 43, second clamping bag supporting assembly; 51, moving frame; 52, pushing plate; 53, first pushing air cylinder; 54, second pushing air cylinder; 55, limiting air cylinder; 56, pushing linear moving module; 61, bag folding seat; 62, bag folding knife; 63, negative pressure pipe; 631, main body section; 632, flat section; 64, upper heat sealing assembly; 641, upper heat sealing seat; 642, upper heat sealing head; 643, upper heat sealing air cylinder; 65, lower heat sealing assembly; 651, lower heat sealing seat; 652, lower heat sealing head; 653, first heat sealing air cylinder; 654, mounting plate; 655, second heat sealing air cylinder; 66, first moving mechanism; 67, second moving mechanism; 68, upper positioning plate; 69, lower positioning plate; 71, upper edge; 72, lower edge; 73, bag opening; 74, top surface; 75, side surface; 76, bag folding position. DETAILED DESCRIPTION

[0014] The application is further described below through a specific embodiment.

[0015] REFERENCE Figures 1 to 13As shown, an automatic bagging and packaging device for wafer boxes is used to bag and heat-seal the wafer boxes after labeling, including a packaging table 1, a bagging position 11 arranged on the packaging table 1, a packaging bag storage rack 2 arranged on the packaging table 1, a bag taking device 3 for clamping the packaging bag 7 on the packaging bag storage rack 2 to the bagging position 11, a bag-opening device 4 for opening the packaging bag 7 at the bagging position 11, a pushing device 5 for pushing the wafer box into the opened packaging bag 7, and a heat-sealing device 6 for heat-sealing the packaging bag 7; specifically, the packaging bag 7 includes a top surface 74, two upper edges 71 arranged opposite to the top surface 74, two lower edges 72 arranged opposite to the bottom surface, two side surfaces 75 arranged opposite to both sides of the top surface 74, and a bag opening 73 for the wafer box to enter.

[0016] The packaging bag storage rack 2 includes a storage rack body 21 for placing packaging bags 7, two bag pressing racks 22 relatively arranged on both sides of the storage rack body 21, a bag pressing roller 23 that can move up and down and is arranged between the two bag pressing racks 22, and a Z-direction moving module 24 that drives the storage rack body 21 to move up and down. Multiple un-stuffed packaging bags 7 are stacked in sequence in the storage rack body 21, and the bag pressing roller 23 is pressed on the packaging bags 7. Through the setting of the bag pressing roller 23, one side of the packaging bag 7 in the storage rack body 21 is prevented from warping and bending, and bag pressing rollers 23 of different weights can be selected according to the softness and hardness of the packaging bag 7 to ensure that the bag taking device 3 can only take out one packaging bag 7 at a time.

[0017] The bag taking device 3 includes a first bag taking rack 31 arranged on the packaging table 1 and extending in the direction close to the bag filling position 11, a second bag taking rack 32 arranged vertically on the first bag taking rack 31 and extending in the direction close to the packaging bag storage rack 2, a support plate 33 movably arranged on the first bag taking rack 31 for placing the packaging bag 7, a correction mechanism 34 located below the second bag taking rack 32 to correct the position of the packaging bag 7, a bag taking assembly 35 movably arranged on the second bag taking rack 32 for clamping the packaging bag 7, a first driving assembly 36 arranged on the first bag taking rack 31 to drive the support plate 33 to move, and a second driving assembly 37 arranged on the second bag taking rack 32 to drive the bag taking assembly 35 to move. When taking a bag, the bag taking assembly 35 cooperates with the second driving assembly 37 to drive the bag taking assembly 35 to move. Component 37 sucks the packaging bag 7 from the packaging bag storage rack 2 to the support plate 33, and the first drive component 36 drives the support plate 33 on which the packaging bag 7 is placed to move to the bagging position 11; specifically, a plurality of negative pressure suction nozzles 331 are provided on the support plate 33, and when the correction mechanism 34 completes the correction of the position of the packaging bag 7, the plurality of negative pressure suction nozzles 331 work to adsorb and fix the packaging bag 7 on the support plate 33, to prevent the packaging bag 7 from shifting during the process of the support plate 33 moving to the bagging position 11, thereby affecting the subsequent bag-holding process; further, the first drive component 36 and the second drive component 37 both adopt a linear moving module, which is a prior art, and its specific structure and working principle will not be further described here.

[0018] The correction mechanism 34 includes a correction frame 341 that can move up and down and is arranged below the second bag-taking frame 32, two first correction components 342 that are relatively arranged on both sides of the correction frame 341, two second correction components 343 that are relatively arranged on both sides of the correction frame 341, and a lifting cylinder 344 that connects and drives the correction frame 341 to move up and down. The two first correction components 342 and the two second correction components 343 are alternately arranged on the four outer sides of the correction frame 341. Specifically, the first correction component 342 includes a correction plate 345 that can move along the relative outer side surface and a first correction cylinder 346 that is arranged on the correction frame 341 to drive the correction plate 345 to move. The second correction component 343 includes a correction column 347 that can move along the relative outer side surface and a second correction cylinder 348 that is arranged on the correction frame 341 to drive the correction column 347 to move. The support plate 33 is provided with a strip-shaped movable hole 332 for the relative correction column 347 to pass through.

[0019] The bag taking component 35 includes a movable seat 351 movably arranged on the second bag taking rack 32, a bag taking plate 352 arranged at the lower end of the movable seat 351 and capable of extending into the packaging bag storage rack 2, and a plurality of bag taking suction nozzles 353 spaced apart at the lower end of the bag taking plate 352 close to the packaging bag storage rack 2. When taking a bag, the second driving component 37 controls the movable seat 351 to move close to the packaging bag storage rack 2 so that the plurality of bag taking suction nozzles 353 are opposite to the front end of the packaging bag 7 in the packaging bag storage rack 2. At this time, the plurality of bag taking suction nozzles 353 are controlled to work so as to adsorb the front end of the packaging bag 7, and then cooperate with the second driving component 37 to move in the opposite direction to take the packaging bag 7 out of the packaging bag storage rack 2 and onto the support plate 33.

[0020] The bag-stretching device 4 includes an adsorption bag-stretching component 41 arranged above the bag-filling position 11 and two clamping bag-stretching components arranged relatively on the packaging table 1 and located on both sides of the packaging bag 7, wherein the two clamping bag-stretching components are respectively arranged on both sides of the packaging bag 7, so that the area between the two clamping bag-stretching components constitutes the bag-filling position 11 defined in this application; when stretching the bag, the adsorption bag-stretching component 41 adsorbs the surface of the packaging bag 7, and the clamping bag-stretching component clamps the upper edge 71 and the lower edge 72 arranged on the same side to stretch open the packaging bag 7; specifically, the clamping bag-stretching component includes a first clamping bag-stretching component 42 and a second clamping bag-stretching component 43 arranged at intervals.

[0021] The suction bag-holding assembly 41 includes a suction bag-holding frame 411, a lifting plate 412 that can be moved up and down and is arranged on the suction bag-holding frame 411, a fixed suction nozzle 413 arranged on the lifting plate 412, an adjustment plate 414 that is arranged on the lifting plate 412 and can move relative to the fixed suction nozzle 413, a movable suction nozzle 415 arranged on the adjustment plate 414 and opposite to the fixed suction nozzle 413, a first lifting cylinder 416 that is connected to and drives the lifting plate 412 to move, and a second lifting cylinder 417 that is connected to and drives the first lifting cylinder 416 to move up and down and is arranged on the suction bag-holding frame 411, wherein the movable suction nozzle 415 and the fixed suction nozzle 413 can be sucked and fixed on the top surface 74 of the packaging bag. Through the arrangement of the movable suction nozzle 415, the suction bag-holding assembly 41 can adapt to packaging bags 7 of different sizes.

[0022] The first bag clamping assembly 42 includes a bag clamping seat 421, an upper clamping member 422 that can be moved up and down on the bag clamping seat 421 for clamping the relative upper edge 71, a lower clamping member 423 that can be moved up and down on the bag clamping seat 421 for clamping the relative lower edge 72, a first lifting member 424 that is provided on the bag clamping seat 421 to drive the upper clamping member 422 to move, and a second lifting member 425 that is provided on the bag clamping seat 421 to drive the lower clamping member 423 to move; wherein, the upper clamping member 422 includes an upper clamping frame 426 connected to the first lifting member 424 and two upper clamping pneumatic clamps 427 that are relatively provided on the upper clamping frame 426, and the two upper clamping pneumatic clamps 427 can respectively clamp the relative upper edge 71, and cooperate with the adsorption bag-stretching component 41 to move upward to open the packaging bag 7; specifically, the structure of the lower clamping member 423 is the same as that of the upper clamping member 422, and no further description is given here. When the lower clamping member 423 clamps the lower edge 72 on the same side, it cooperates with the negative pressure suction nozzle 331 on the support plate 33, so that the packaging bag 7 will not move upward with the upper clamping member 422, ensuring that the packaging bag 7 can be stably opened to the required degree; further, the first lifting member 424 and the second lifting member 425 both adopt a linear moving module that can realize vertical movement. The linear moving module is an existing technology, and no further description is given here on its specific structure and working principle.

[0023] The second bag-holding assembly 43 has a structure substantially identical to that of the first bag-holding assembly 42 , with the difference being that the bag-holding seat 421 is not included, the first lifting member 424 and the second lifting member 425 are vertically opposed to each other, and a linear moving module is further provided that can drive the first lifting member 424 or the second lifting member 425 to move in the pushing direction, so that the second bag-holding assembly 43 can adjust its clamping position according to packaging bags 7 of different sizes.

[0024] The pushing device 5 is opposite to the bag opening 73 of the packaging bag 7, and comprises a moving frame 51 arranged on the packaging table 1 and movable towards the bagging position 11, a pushing plate 52 arranged on the moving frame 51 and used for placing a wafer box, a first pushing cylinder 53 arranged on the moving frame 51 and used for moving the pushing plate 52 towards the bagging position 11, a second pushing cylinder 54 arranged on the pushing plate 52 and used for pushing the wafer box into the packaging bag 7, two limiting cylinders 55 arranged on the pushing plate 52 and used for correcting the position of the wafer box, and a pushing linear moving module 56 arranged on the packaging table 1 and used for driving the moving frame 51 to move towards the bagging position 11. The two limiting cylinders 55 are arranged to correct the position of the wafer box, so that the wafer box can smoothly enter the packaging bag 7. When the packaging bag 7 is opened, the first pushing cylinder 53 cooperates with the pushing linear moving module 56 to move the wafer box to the bag opening 73 of the packaging bag, and the second pushing cylinder 54 pushes the wafer box into the packaging bag 7 so that the wafer box is supported on the supporting plate 33. At this time, the negative pressure suction nozzle 331 on the supporting plate 33 stops working.

[0025] The heat sealing device 6 comprises two bag folding seats 61 arranged on the packaging table 1 and movable towards each other, two bag folding knives 62 arranged on the two bag folding seats 61 respectively, a negative pressure pipe 63 arranged in the inner side of one of the bag folding knives 62, an upper heat sealing assembly 64 and a lower heat sealing assembly 65 arranged opposite to each other, a first moving mechanism 66 arranged on the packaging table 1 and used for driving the bag folding seat 61 to move, a second moving mechanism 67 arranged on the packaging table 1 and used for driving the two bag folding seats 61 to move towards each other, an upper positioning plate 68 extending downwards and arranged on the upper heat sealing assembly 64, and a lower positioning plate 69 extending upwards and arranged on the lower heat sealing assembly 65 and opposite to the upper positioning plate 68. The two bag folding knives 62 are opposite to the two side surfaces 75 of the packaging bag respectively. The first moving mechanism 66 drives the bag folding seat 61 to move towards the bagging position 11, so that the negative pressure pipe 63 extends into the packaging bag 7, and the bag folding knife 62 on the same side is located outside the packaging bag. The second moving mechanism 67 drives the two bag folding seats 61 to move towards each other, so that the bag folding knife 62 drives the side surface 75 of the packaging bag in contact with the bag folding knife 62 to move inwards to complete the bag folding process of the bag opening 73 of the packaging bag to form a bag folding part 76. The upper positioning plate 68 and the lower positioning plate 69 are opposite to each other and located on the side opposite to the wafer box and the negative pressure pipe 63. The wafer box can be limited when the negative pressure pipe 63 is vacuumized, so that the wafer box is prevented from being displaced when the packaging bag 7 is vacuumized. Specifically, the negative pressure pipe 63 comprises a main body segment 631 connected with an external negative pressure source and a flat segment 632 extending into the packaging bag 7. Further, the first moving mechanism 66 and the second moving mechanism 67 both adopt linear moving modules. The linear moving module is prior art, and the specific structure and working principle thereof will not be described further.

[0026] The upper heat sealing assembly 64 comprises an upper heat sealing seat 641 arranged on the packaging table 1, an upper heat sealing head 642 arranged on the upper heat sealing seat 641 and movable upwards and downwards, and an upper heat sealing cylinder 643 connected with and driving the upper heat sealing head 642 to move.

[0027] The lower heat sealing assembly 65 includes a lower heat sealing seat 651 provided on the packaging table 1, a lower heat sealing head 652 which can be moved up and down on the lower heat sealing seat 651, a first heat sealing cylinder 653 which is connected to and drives the lower heat sealing head 652 to move, a mounting plate 654 for mounting the first heat sealing cylinder 653, and a second heat sealing cylinder 655 which is connected to the mounting plate 654 and is provided on the lower heat sealing seat 651, wherein the lower positioning plate 69 is provided on the mounting plate 654 and extends upward; after the packaging bag 7 is folded, the upper heat sealing cylinder 643 drives the upper heat sealing head 642 to move downward and contact the upper surface of the folding part 76 of the packaging bag, and the second heat sealing cylinder 655 drives the mounting plate 654 to move upward. 4 moves upward, driving the lower heat sealing head 652 to contact the bottom surface of the packaging bag 7, and the negative pressure tube 63 can start to vacuum the packaging bag 7; when the negative pressure tube 63 completes the vacuuming, the vacuum is closed and the nitrogen control valve is opened to fill a small amount of nitrogen. After completion, the first moving mechanism 66 drives the bag folding seat 61 to move, driving the negative pressure tube 63 to be withdrawn from the packaging bag 7. At this time, the first heat sealing cylinder 653 drives the lower heat sealing head 652 to move upward, and cooperates with the upper heat sealing head 642 to clamp the folding part 76 of the packaging bag for heat sealing. After the heat sealing heating is completed, the pressure is maintained. After the pressure maintenance is completed, the upper heat sealing assembly 64 and the lower heat sealing assembly 65 move in opposite directions to the standby state.

[0028] The method for packaging a wafer box based on the above device specifically includes the following steps: Step 1: The wafer box with the information label attached is fed into the pushing device 5. The bag taking device 3 takes the packaging bag 7 from the packaging bag storage rack 2 and moves it to the bagging position 11. The bag opening device 4 opens the packaging bag 7 on the bagging position 11. The pushing device 5 then pushes the wafer box into the opened packaging bag 7. In step 2, the bag folding seat 61 moves toward the bag filling position 11, driving the two bag folding knives 62 and the negative pressure tube 63 to move toward the packaging bag 7 so that the two bag folding knives 62 are respectively located outside the two opposite side surfaces 75 of the packaging bag 7, and the negative pressure tube 63 extends into the packaging bag 7. Then, the second moving mechanism 67 drives the two bag folding knives 62 to move toward each other, driving the packaging bag side surfaces 75 in contact with them to move inwardly into position, completing the bag folding process of the bag opening 73 to form a bag folding portion 76. Step three, the upper heat sealing assembly 64 moves downward to contact the upper surface of the bag folding part 76, the lower heat sealing assembly 65 moves upward to contact the lower surface of the bag folding part 76 first, the negative pressure pipe 63 works to perform vacuumizing treatment on the inside of the packaging bag 7, the wafer box is limited by the upper positioning plate 68 and the lower positioning plate 69, and movement does not occur; when the negative pressure pipe 63 completes the vacuumizing treatment, the first moving mechanism 66 drives the bag folding seat 61 to move away from the bagging position 11, thereby driving the negative pressure pipe 63 to separate from the packaging bag 7, at this time, the first heat sealing cylinder 653 drives the lower heat sealing head 652 to move upward and cooperate with the upper heat sealing head 642 to clamp and heat seal the bag folding part 76 of the packaging bag 7 to complete the vacuumizing and heat sealing treatment of the packaging bag 7 after the bag folding treatment.

[0029] The application defines the structure of the bagging heat sealing device, and through the cooperation of the bag taking device 3, the bag supporting device 4, the material pushing device 5 and the heat sealing device 6, the packaging bag 7 can complete the wafer box pushing, bag folding treatment and heat sealing treatment at the fixed position of the bagging position 11 to complete the wafer box packaging, without transferring in multiple devices to complete the above operation, so as to solve the problem that the packaging bag is easily damaged in the transfer process due to its softness and thinness, the overall structure is compact, the whole process is highly automated, the participation of manual work is greatly reduced, the wafer box packaging efficiency is effectively improved, and the wafer box packaging yield is also improved; wherein, the negative pressure pipe 63 and the bag folding knife 62 are specifically limited, and the upper heat sealing assembly 64 and the lower heat sealing assembly 65 are cooperated to work, so that the negative pressure pipe 63 can work with the bag folding knife 62, when the bag folding treatment of the packaging bag 7 is completed, the negative pressure pipe 63 is already located in the packaging bag 7, and the vacuumizing treatment can be started; when the negative pressure pipe 63 completes the vacuumizing and withdraws outward, the lower heat sealing assembly 65 can further cooperate with the upper heat sealing assembly 64 to clamp and heat seal the bag folding part 76 of the packaging bag 7 to perform heat sealing treatment, the overall operation has good continuity, and the efficiency and yield of the wafer box vacuum packaging can be ensured.

[0030] The above is only a preferred embodiment of the application, and therefore cannot limit the scope of the application, that is, equivalent changes and modifications made according to the patent application scope and content of the specification should still be within the scope of the application.

Claims

1. An automatic wafer box bagging and packaging device, which performs bagging and heat-sealing on labeled wafer boxes, is characterized by: It includes a packaging table, a bagging position arranged on the packaging table, a packaging bag storage rack arranged on the packaging table, a bag taking device for clamping the packaging bag on the packaging bag storage rack to the bagging position, a bag holding device for opening the packaging bag at the bagging position, a pushing device for pushing the wafer box into the opened packaging bag, and a heat sealing device for heat sealing the packaging bag; The heat sealing device comprises two folding bag seats which can be moved toward each other and are arranged on the packaging table, two folding bag knives respectively arranged on the two folding bag seats, a negative pressure tube arranged on the inner side of one of the folding bag knives, an upper heat sealing assembly and a lower heat sealing assembly arranged opposite to each other in the upper and lower directions, a first moving mechanism which is arranged on the packaging table to drive the folding bag seat to move, a second moving mechanism which drives the two folding bag seats to move toward each other, an upper positioning plate which is arranged on the upper heat sealing assembly and extends downward, and a lower positioning plate which is arranged on the lower heat sealing assembly and extends upward and is opposite to the upper positioning plate, the two folding bag knives are respectively opposite to the two side surfaces of the packaging bag, the upper positioning plate and the lower positioning plate are relatively located on the side opposite to the wafer box and the negative pressure tube, the first moving mechanism drives the folding bag seat to move close to the bagging position so that the negative pressure tube extends into the packaging bag, and the folding bag knife on the same side is located on the outside of the packaging bag; the second moving mechanism drives the two folding bag knives to move toward each other so that the folding bag knives drive the side surface of the packaging bag in contact with them to move inward to complete the bag folding processing of the bag opening of the packaging bag; The negative pressure tube includes a main section connected to an external negative pressure source and a flat section that can be inserted into the packaging bag; The lower heat sealing assembly includes a lower heat sealing seat arranged on the packaging table, a lower heat sealing head arranged on the lower heat sealing seat and movable up and down, a first heat sealing cylinder connected to and driving the lower heat sealing head to move, a mounting plate for installing the first heat sealing cylinder, and a second heat sealing cylinder connected to the mounting plate and arranged on the lower heat sealing seat; the lower positioning plate is arranged on the mounting plate and extends upward; when the negative pressure tube is working, the second heat sealing cylinder drives the mounting plate to move upward and drives the lower heat sealing head to contact the bottom surface of the packaging bag; after the negative pressure tube completes its work, the first moving mechanism drives the bag folding seat to move and drives the negative pressure tube to be pulled out of the packaging bag; at this time, the first heat sealing cylinder drives the lower heat sealing head to move upward and cooperates with the upper heat sealing assembly to clamp the folding part of the packaging bag for heat sealing.

2. The wafer box automatic bagging and packaging device according to claim 1, characterized in that: The bag taking device includes a first bag taking rack arranged on the packaging table and extending in a direction close to the bag filling position, a second bag taking rack arranged vertically on the first bag taking rack and extending in a direction close to the packaging bag storage rack, a support plate movably arranged on the first bag taking rack for placing packaging bags, a correction mechanism for correcting the position of the packaging bags located below the second bag taking rack, a bag taking assembly movably arranged on the second bag taking rack for clamping the packaging bags, a first driving assembly arranged on the first bag taking rack to drive the support plate to move, and a second driving assembly arranged on the second bag taking rack to drive the bag taking assembly to move, the bag taking assembly sucks the packaging bags from the packaging bag storage rack onto the support plate, and the first driving assembly drives the support plate with the packaging bags placed thereon to move to the bag filling position.

3. The automatic wafer box bagging and packaging device according to claim 2, characterized in that: The correction mechanism includes a correction frame that can be moved up and down and is arranged below the second bag-taking frame, two first correction components that are relatively arranged on both sides of the correction frame, two second correction components that are relatively arranged on both sides of the correction frame, and a lifting cylinder that connects and drives the correction frame to move up and down. The two first correction components and the two second correction components are alternately arranged on the four outer sides of the correction frame. The first correction component includes a correction plate that can be moved along the relative outer side surface and a first correction cylinder that is arranged on the correction frame to drive the correction plate to move. The second correction component includes a correction column that can be moved along the relative outer side surface and a second correction cylinder that is arranged on the correction frame to drive the correction column to move. The support plate is provided with a strip-shaped movable hole for the relative correction column to pass through.

4. The automatic wafer box bagging and packaging device according to claim 3, characterized in that: The bag taking assembly includes a movable seat movably arranged on the second bag taking rack, a bag taking plate arranged at the lower end of the movable seat and capable of extending into the packaging bag storage rack, and a plurality of bag taking nozzles spaced apart at the lower end of the bag taking plate.

5. The wafer box automatic bagging and packaging device according to claim 1, characterized in that: The packaging bag includes two upper edges arranged relatively to each other on its top surface and two lower edges arranged relatively to each other on its bottom surface. The bag-holding device includes an adsorption bag-holding assembly arranged above the bag filling position and two clamping bag-holding assemblies arranged relatively to each other on the packaging table and located on both sides of the packaging bag. The two clamping bag-holding assemblies are respectively opposite to the two upper edges. The clamping bag-holding assembly includes a clamping bag-holding seat, an upper clamping piece movably arranged on the clamping bag-holding seat for clamping the relative upper edges, a lower clamping piece movably arranged on the clamping bag-holding seat for clamping the relative lower edges, a first lifting piece arranged on the clamping bag-holding seat for driving the upper clamping piece to move, and a second lifting piece arranged on the clamping bag-holding seat for driving the lower clamping piece to move.

6. The wafer box automatic bagging and packaging device according to claim 5, characterized in that: The suction bag-holding assembly includes a suction bag-holding frame, a lifting plate that can move up and down and is arranged on the suction bag-holding frame, a fixed suction nozzle arranged on the lifting plate, an adjustment plate that can move relative to the fixed suction nozzle and is arranged on the lifting plate, a movable suction nozzle arranged on the adjustment plate opposite to the fixed suction nozzle, a first lifting cylinder connected to and driving the lifting plate to move, and a second lifting cylinder that is arranged on the suction bag-holding frame and connected to and drives the first lifting cylinder to move up and down. The movable suction nozzle and the fixed suction nozzle can be fixed by suction on the top surface of the packaging bag.

7. The wafer box automatic bagging and packaging device according to claim 1, characterized in that: The pushing device includes a movable frame arranged on the packaging table and movable in the direction close to the bagging position, a pushing plate arranged on the movable frame for placing the wafer box, a first pushing cylinder arranged on the movable frame to drive the pushing plate to move close to the bagging position, and a second pushing cylinder arranged on the pushing plate to push the wafer box into the packaging bag.

8. A wafer box packaging method, characterized in that: The bagging and packaging device according to any one of claims 1 to 7 is specifically carried out, comprising the following steps: Step 1: The wafer box with the information label is sent to the pushing device. The bag taking device takes the bag from the bag storage rack and moves it to the bag filling position. The bag opening device opens the bag on the bag filling position. The pushing device then pushes the wafer box into the opened bag. In step 2, the bag folding seat moves close to the bag filling position, driving the two bag folding knives and the negative pressure tube to move close to the packaging bag so that the two bag folding knives are respectively located on the outside of the two opposite sides of the packaging bag, and the negative pressure tube extends into the packaging bag. Then, the second moving mechanism drives the two bag folding knives to move toward each other, driving the sides of the packaging bag in contact with them to move inward and into position, completing the bag folding process of the bag mouth; In step three, the upper heat-sealing assembly moves downward until it contacts the upper surface of the folding part of the packaging bag, and the lower heat-sealing assembly first moves upward until it contacts the lower surface of the folding part of the packaging bag. The negative pressure tube works to vacuum the inside of the packaging bag, and the wafer box is limited by the upper and lower positioning plates relative to each other and will not move. When the negative pressure tube completes the vacuum treatment, the first moving mechanism drives the folding seat to move away from the bagging position, thereby driving the negative pressure tube to be pulled out of the packaging bag. At this time, the lower heat-sealing assembly further moves upward to cooperate with the upper heat-sealing assembly to clamp the folding part of the packaging bag for heat-sealing treatment, so as to complete the vacuum and heat-sealing treatment of the packaging bag after the folding treatment.

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