CN114604474A - Automatic case sealer - Google Patents
Automatic case sealer Download PDFInfo
- Publication number
- CN114604474A CN114604474A CN202110946741.9A CN202110946741A CN114604474A CN 114604474 A CN114604474 A CN 114604474A CN 202110946741 A CN202110946741 A CN 202110946741A CN 114604474 A CN114604474 A CN 114604474A
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- CN
- China
- Prior art keywords
- sets
- rod
- case sealer
- crane
- automatic case
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
- B65B51/04—Applying separate sealing or securing members, e.g. clips
- B65B51/06—Applying adhesive tape
- B65B51/067—Applying adhesive tape to the closure flaps of boxes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B59/00—Arrangements to enable machines to handle articles of different sizes, to produce packages of different sizes, to vary the contents of packages, to handle different types of packaging material, or to give access for cleaning or maintenance purposes
- B65B59/003—Arrangements to enable adjustments related to the packaging material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
- B65H35/0006—Article or web delivery apparatus incorporating cutting or line-perforating devices
- B65H35/002—Hand-held or table apparatus
- B65H35/0026—Hand-held or table apparatus for delivering pressure-sensitive adhesive tape
- B65H35/0033—Hand-held or table apparatus for delivering pressure-sensitive adhesive tape and affixing it to a surface
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Closing Of Containers (AREA)
Abstract
The invention discloses an automatic carton sealing machine which comprises four support columns, a driving mechanism, a lifting frame, a machine core, an induction assembly and a lower limit sensor, wherein the support columns are distributed in a rectangular shape, the driving mechanism is arranged at the top of the middle of the four support columns, the lifting frame is movably sleeved on the four support columns and is positioned below the driving mechanism, the driving mechanism drives the lifting frame to lift along the support columns, the machine core and the induction assembly are respectively arranged on the lifting frame, the induction assembly is positioned in front of the machine core, a control box is arranged at the top of each support column, the lower limit sensor is respectively arranged on two sides of the lifting frame, and the control box is respectively and electrically connected with the driving mechanism, the induction assembly and the lower limit sensor. The invention can save space and has strong applicability.
Description
Technical Field
The invention relates to the technical field of adhesive tape carton sealing machines, in particular to an automatic carton sealing machine.
Background
The case sealer is the equipment that seals the packing box with the tape-stripping promptly, because the transportation packing has had very big promotion to the quality of sealing of packing box and the requirement of joint sealing efficiency, for the convenience of sealing of packing box, uses automatic or semi-automatic case sealer to seal the processing to the packing box now to reduce the cost of labor and improve production efficiency. The existing carton sealing machine is not integrated with the existing assembly line, a random height bulge carton cannot be passed through, and the machine core is short in length of the sealing tapes on two sides.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide an automatic carton sealing machine which can save space and has strong applicability.
The invention is realized by the following technical scheme: automatic case sealer, including four support columns, actuating mechanism, crane, core, response subassembly, lower spacing sensor that are the rectangle and distribute, four the top in the middle of the support column is provided with actuating mechanism, crane activity suit is four on the support column, just the crane is located actuating mechanism's below, the actuating mechanism drive the crane is followed the support column goes up and down, the core with response subassembly sets up respectively on the crane, just response subassembly is located the place ahead of core, the top of support column is provided with the control box, the crane both sides are provided with respectively spacing sensor down, the control box respectively with actuating mechanism, response subassembly, lower spacing sensor electricity are connected.
Further: actuating mechanism includes mounting bracket, motor, turbine lead screw riser, screw lead screw, nut, the mounting bracket sets up four the top of support column, the motor sets up on the mounting bracket, the motor with the turbine lead screw riser is connected, the turbine lead screw riser with the nut suit respectively is in on the screw lead screw, just the turbine lead screw riser with mounting bracket fixed connection, the nut sets up on the crane.
Further: the crane includes two connecting rods of mutual symmetry, two be connected with two mobilizable side bearers between the connecting rod, every be provided with on the side bearer and press from both sides the wheel, every the tip of connecting rod is provided with the slider respectively, slider activity suit is in on the support column, wherein be connected with the mounting panel between two sliders, response subassembly and nut setting are in on the mounting panel.
Further: the connecting rod is connected with the side frames through adjusting components, each adjusting component comprises a connecting arm and a moving block, two ends of each connecting arm are respectively connected with the side frames and the moving blocks, and the moving blocks are movably sleeved on the connecting rod.
Further: the response subassembly includes tablet, spliced pole, response spring, sleeve, limit switch, trigger piece, the sleeve with the mounting panel is connected, the cover is equipped with the response spring on the spliced pole, the one end activity of spliced pole sets up in the sleeve, the other end of spliced pole with the tablet is connected, trigger piece sets up on the tablet, limit switch sets up on the mounting panel, just limit switch is located trigger piece's movement track is last.
Further: still include the buffering frame, the buffering frame includes roof-rack, chassis, buffering post, buffer spring, buffer cylinder, the roof-rack with the connecting rod is connected, the buffer cylinder sets up on the roof-rack, the buffering post activity sets up in the buffer cylinder, just the bottom of buffering post with the chassis is connected, the buffer spring suit is in on the buffering post, just buffer spring is located between roof-rack and the chassis, the core sets up on the chassis.
Further: the core includes two curb plates that set up relatively, two the curb plate respectively with the chassis is connected, two seal the gluey pole before rotationally being provided with between the curb plate and seal the gluey pole after with, rotationally be provided with preceding pinch roller on the preceding gluey pole, rotationally be provided with back pinch roller on the back gluey pole, preceding glue sealing pole and back are sealed and are connected with between the gluey pole before making and seal the synchronous pivoted connecting rod of gluey pole after with, two be connected with the bracing piece between the curb plate, the bracing piece with it is connected with reset spring to seal after between the gluey pole, one of them be provided with cutting assembly on the curb plate, another one be provided with the sticky tape dish on the curb plate.
Further: the heights h of the front glue sealing rod and the rear glue sealing rod are respectively 15.5 cm.
Further: the cutting assembly comprises a connecting plate, a driving spring, a box pressing rod and a cutter, the connecting plate is rotatably arranged on the side plates, the driving spring is arranged between the connecting plate and the side plates, the box pressing rod and the cutter are respectively arranged on the connecting plate, the box pressing rod is located below the cutter, and a guide plate is arranged at the outer end of the cutter.
Further: the box pressing rod is made of thickened metal plates.
The invention has the beneficial effects that:
compared with the prior art, the driving mechanism and the lifting frame are arranged on the four support columns, the lifting frame is positioned below the driving mechanism, the driving mechanism is used for driving the lifting frame to lift along the support columns, the machine core and the induction assembly are respectively arranged on the lifting frame, and the induction assembly is positioned in front of the machine core, the lower limit sensors are arranged on the two sides of the lifting frame, when in work, the invention is erected on a production line through four support columns, which is beneficial to saving space, the invention can be integrated with the prior production line, so that the space utilization is reasonable, the height of the machine core can be adjusted according to the height of the carton through the sensing assembly, the invention is suitable for the cartons with various height sizes, the lengths of the front sealing adhesive rod and the rear sealing adhesive rod are lengthened, can seal long glue to the side of carton, press the upper surface at the carton through pressure case pole in addition, can press the bulge of carton low.
Drawings
FIG. 1 is a first schematic structural diagram of the present invention;
FIG. 2 is an enlarged view of FIG. 1A;
FIG. 3 is a second schematic structural view of the present invention;
FIG. 4 is a first schematic view of a connection structure of a buffer frame and a movement according to the present invention;
FIG. 5 is a second schematic view of the connection structure of the buffer frame and the movement of the present invention;
fig. 6 is a schematic structural diagram of the movement of the present invention.
Description of reference numerals: 1-supporting column, 2-lifting frame, 21-connecting rod, 22-side frame, 23-clamping wheel, 24-sliding block, 25-mounting plate, 26-connecting arm, 27-moving block, 3-movement, 31-side plate, 32-front glue sealing rod, 33-rear glue sealing rod, 34-front pressing wheel, 35-rear pressing wheel, 36-connecting rod, 37-supporting rod, 38-reset spring, 39-adhesive tape disk, 4-sensing component, 41-sensing plate, 42-connecting column, 43-sensing spring, 44-sleeve, 45-limit switch, 46-trigger piece, 5-lower limit sensor, 6-control box, 71-mounting frame, 72-motor, 73-turbine screw lifter, 74-screw, 75-nuts, 81-top frames, 82-bottom frames, 83-buffer columns, 84-buffer springs, 85-buffer cylinders, 91-connecting plates, 92-driving springs, 93-box pressing rods, 94-cutters, 95-guide plates, 96-rubber guide rollers and 10-production line.
Detailed Description
Fig. 1 to 6 are schematic structural diagrams of an embodiment of an automatic carton sealing machine provided by the invention, and the structural diagrams include four support columns 1 which are distributed in a rectangular shape, a driving mechanism, a lifting frame 2, a machine core 3, an induction component 4 and a lower limit sensor 5, wherein the top of the middle of the four support columns 1 is provided with the driving mechanism, the lifting frame 2 is movably sleeved on the four support columns 1, the lifting frame 2 is positioned below the driving mechanism, the driving mechanism drives the lifting frame 2 to lift along the support columns 1, the machine core 3 and the induction component 4 are respectively arranged on the lifting frame 2, the induction component 4 is positioned in front of the machine core 3, the top of the support column 1 is provided with a control box 6, the two sides of the lifting frame 2 are respectively provided with the lower limit sensor 5, and the control box 6 is respectively electrically connected with the driving mechanism, the induction component 4 and the lower limit sensor 5.
When the carton sealing machine works, the carton sealing machine is erected on a production line 10 through four support columns 1, so that the carton sealing machine is beneficial to saving space, the carton sealing machine can be integrated with the existing production line 10, a driving mechanism drives a lifting frame 2 to lift along the support columns 1, the lifting frame 2 drives a machine core 3, an induction component 4 and a lower limit sensor 5 to lift, when the lower limit sensor 5 reaches the initial working height, the driving mechanism stops working, the production line 10 is started to carry out carton conveying, when the carton passes through the carton sealing machine, firstly, the carton pushes up the induction component 4, the induction component 4 sends a signal to a control box 6 after receiving upward pushing force, the control box 6 controls the driving mechanism to drive the lifting frame 2 to drive the machine core 3 and the induction component 4 to lift, when the induction component 4 rises to a certain height and is not subjected to the upward pushing force of the carton, the control box 6 controls the driving mechanism to close, the carton continues to be carried forward to core 3 department through response subassembly 4 and seals the glue, can press the height of case according to the high automatic control of carton through response subassembly 4, is applicable to the bulging carton of multiple height dimension.
The driving mechanism comprises a mounting frame 71, a motor 72, a turbine screw rod lifter 73, a threaded screw rod 74 and nuts 75, the mounting frame 71 is arranged at the tops of the four support columns 1, the motor 72 is arranged on the mounting frame 71, the motor 72 is connected with the turbine screw rod lifter 73, the turbine screw rod lifter 73 and the nuts 75 are respectively sleeved on the threaded screw rod 74, the turbine screw rod lifter 73 is fixedly connected with the mounting frame 71, and the nuts 75 are arranged on the lifting frame 2.
When the driving mechanism drives the lifting frame 2 to lift, the motor 72 drives the threaded screw rod 74 to rotate through the turbine screw rod lifter 73, the threaded screw rod 74 rotates to drive the nut 75 to lift along the threaded screw rod 74, and the nut 75 drives the lifting frame 2 to lift.
The lifting frame 2 comprises two connecting rods 21 which are symmetrical to each other, two movable side frames 22 are connected between the two connecting rods 21, a clamping wheel 23 is arranged on each side frame 22, a sliding block 24 is arranged at the end of each connecting rod 21 respectively, the sliding blocks 24 are movably sleeved on the supporting columns 1, a mounting plate 25 is connected between the two sliding blocks 24, and the induction component 4 and the nuts 75 are arranged on the mounting plate 25.
When the lifting frame 2 is lifted and descended along the supporting column 1 through the sliding block 24, when the assembly line 10 conveys cartons, the cartons can be guided and oriented through the two side frames 22, so that the cartons accurately enter the lower part of the machine core 3, and the cartons can be conveyed more smoothly through the clamping wheels 23 on the side frames 22.
The connecting rod 21 is connected with the side frames 22 through an adjusting component, the adjusting component comprises connecting arms 26 and moving blocks 27, two ends of each connecting arm 26 are respectively connected with the side frames 22 and the moving blocks 27, and the moving blocks 27 are movably sleeved on the connecting rod 21.
When the distance between the two side frames 22 is adjusted, the moving block 27 can be pushed to the position of the connecting rod 21, so that the distance between the two side frames 22 can be adjusted, and the distance between the two side frames 22 is adapted to the size of the carton.
The sensing component 4 comprises a sensing plate 41, a connecting column 42, a sensing spring 43, a sleeve 44, a limit switch 45, a trigger piece 46, the sleeve 44 is connected with the mounting plate 25, the sensing spring 43 is sleeved on the connecting column 42, one end of the connecting column 42 is movably arranged in the sleeve 44, the other end of the connecting column 42 is connected with the sensing plate 41, the trigger piece 46 is arranged on the sensing plate 41, the limit switch 45 is arranged on the mounting plate 25, and the limit switch 45 is located on a movement track of the trigger piece 46.
When the carton is conveyed through the sensing assembly 4, if the height of the carton is too high, the carton pushes up the sensing plate 41, after the sensing plate 41 is acted by the upward acting force, the sensing plate 41 drives the connecting column 42 to ascend along the sleeve 44 and compress the sensing spring 43, the triggering sheet 46 ascends along with the sensing plate 41, when the triggering sheet 46 touches the limit switch 45, the limit switch 45 triggers and sends a signal to the control box 6, the control box 6 controls the motor 72 to start to drive the lifting frame 2 to ascend, when the lifting frame 2 ascends to a certain height, after the carton does not apply the upward acting force to the sensing plate 41 any more, the sensing spring 43 resets, the triggering sheet 46 is separated from the limit switch 45, and the control box 6 controls the motor 72 to close.
Still include the buffering frame, the buffering frame includes roof-rack 81, chassis 82, buffering post 83, buffer spring 84, buffer cylinder 85, roof-rack 81 and connecting rod 21 are connected, buffer cylinder 85 sets up on roof-rack 81, the activity of buffering post 83 sets up in buffer cylinder 85, and the bottom and the chassis 82 of buffer post 83 connect, buffer spring 84 suit is on buffering post 83, and buffer spring 84 is located between roof-rack 81 and the chassis 82, core 3 sets up on chassis 82.
When the carton arrives in the core 3 below, core 3 carries out the case pressing to the carton and seals the glue, and chassis 82 receives ascending effort, and chassis 82 drives cushion post 83 and rises and compress buffer spring 84 along buffer cylinder 85 to play the buffering, reduce the effect of impact force.
The movement 3 comprises two oppositely arranged side plates 31, the two side plates 31 are respectively connected with the bottom frame 82, a front glue sealing rod 32 and a rear glue sealing rod 33 are rotatably arranged between the two side plates 31, a front pressing wheel 34 is rotatably arranged on the front glue sealing rod 32, a rear pressing wheel 35 is rotatably arranged on the rear glue sealing rod 33, a connecting rod 36 which enables the front glue sealing rod 32 and the rear glue sealing rod 33 to synchronously rotate is connected between the front glue sealing rod 32 and the rear glue sealing rod 33, a supporting rod 37 is connected between the two side plates 31, a return spring 38 is connected between the supporting rod 37 and the rear glue sealing rod 33, a cutting assembly is arranged on one side plate 31, and an adhesive tape disc 39 is arranged on the other side plate 31.
The heights h of the front glue sealing rod 32 and the rear glue sealing rod 33 are respectively 15.5 cm.
The cutting assembly comprises a connecting plate 91, a driving spring 92, a box pressing rod 93 and a cutter 94, the connecting plate 91 is rotatably arranged on the side plate 31, the driving spring 92 is arranged between the connecting plate 91 and the side plate 31, the box pressing rod 93 and the cutter 94 are respectively arranged on the connecting plate 91, the box pressing rod 93 is located below the cutter 94, and a guide plate 95 is arranged at the outer end of the cutter 94.
The box pressing rod 93 is a thickened metal plate.
The adhesive tape is placed on the adhesive tape disc 39 and opened, the head of the adhesive tape passes through the adhesive tape guiding roller 96 and then contacts with the front pressing wheel 34, the adhesive tape guiding roller 96 and the adhesive tape disc 39 are arranged on the same side plate 31, the assembly line 10 drives the carton to move forwards, when the carton contacts with the front pressing wheel 34, the head of the adhesive tape is pressed on the side surface of the carton, the front adhesive sealing rod 32 rotates, the front adhesive sealing rod 32 drives the rear adhesive sealing rod 33 to rotate through the connecting rod 36, at the moment, the front adhesive sealing rod 32 and the rear adhesive sealing rod 33 synchronously rotate inwards, meanwhile, when the carton enters the carton pressing rod 93, the carton pressing rod 93 presses on the upper surface of the carton, so that the bulge on the upper surface of the carton is flattened by the carton pressing rod 93, meanwhile, the carton pressing rod 93 drives the connecting plate 91 to lift up, the driving spring 92 is in a tensioned state, the carton continues to move forwards, when the carton leaves the carton pressing rod 93, the driving spring 92 rebounds and relaxes to drive the connecting plate 91 to drive the connecting plate 93 and the cutter 94 to reset and cut off the adhesive tape, when the rear pressing wheel 35 leaves the upper surface of the carton, the rear glue sealing rod 33 is reset under the action of the reset spring 38, and the rear glue sealing rod 33 rotates to press the tail of the adhesive tape on the side surface of the carton, so that the carton sealing action is completed.
Through seal before with glue the height h that glues pole 32 and back glue the pole 33 and set up respectively at 15.5cm, can realize increasing the length that the carton side was sealed glue, realize that the large-span passes through, does not interfere the carton.
The carton pressing rod 93 is a thickened metal plate and can press down the height of a bulge on the upper surface of a flat carton, a guide plate 95 is arranged at the end part of the cutter 94, and when the carton passes through the carton pressing rod 93, the cutter 94 can be prevented from contacting with the carton by using the guide plate 95.
The above detailed description is specific to possible embodiments of the present invention, and the embodiments are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the scope of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. Automatic case sealer, its characterized in that: including four support columns, actuating mechanism, crane, core, response subassembly, lower spacing sensor that are the rectangle and distribute, four the top in the middle of the support column is provided with actuating mechanism, crane activity suit is four on the support column, just the crane is located actuating mechanism's below, the actuating mechanism drive the crane is followed the support column goes up and down, the core with the response subassembly setting sets up respectively on the crane, just the response subassembly is located the place ahead of core, the top of support column is provided with the control box, the crane both sides are provided with respectively spacing sensor down, the control box respectively with actuating mechanism, response subassembly, lower spacing sensor electricity are connected.
2. The automatic case sealer according to claim 1, wherein: actuating mechanism includes mounting bracket, motor, turbine lead screw riser, screw lead screw, nut, the mounting bracket sets up four the top of support column, the motor sets up on the mounting bracket, the motor with the turbine lead screw riser is connected, the turbine lead screw riser with the nut suit respectively is in on the screw lead screw, just the turbine lead screw riser with mounting bracket fixed connection, the nut sets up on the crane.
3. The automatic case sealer according to claim 2, wherein: the crane includes two connecting rods of mutual symmetry, two be connected with two mobilizable side bearers between the connecting rod, every be provided with on the side bearer and press from both sides the wheel, every the tip of connecting rod is provided with the slider respectively, slider activity suit is in on the support column, wherein be connected with the mounting panel between two sliders, response subassembly and nut setting are in on the mounting panel.
4. The automatic case sealer according to claim 3, wherein: the connecting rod is connected with the side frames through adjusting components, each adjusting component comprises a connecting arm and a moving block, two ends of each connecting arm are respectively connected with the side frames and the moving blocks, and the moving blocks are movably sleeved on the connecting rod.
5. The automatic case sealer according to claim 4, wherein: the response subassembly includes tablet, spliced pole, response spring, sleeve, limit switch, trigger piece, the sleeve with the mounting panel is connected, the cover is equipped with the response spring on the spliced pole, the one end activity of spliced pole sets up in the sleeve, the other end of spliced pole with the tablet is connected, trigger piece sets up on the tablet, limit switch sets up on the mounting panel, just limit switch is located trigger piece's movement track is last.
6. The automatic case sealer according to claim 5, wherein: still include the buffering frame, the buffering frame includes roof-rack, chassis, buffering post, buffer spring, buffer cylinder, the roof-rack with the connecting rod is connected, the buffer cylinder sets up on the roof-rack, the buffering post activity sets up in the buffer cylinder, just the bottom of buffering post with the chassis is connected, the buffer spring suit is in on the buffering post, just buffer spring is located between roof-rack and the chassis, the core sets up on the chassis.
7. The automatic case sealer according to claim 6, wherein: the core includes the curb plate of two relative settings, two the curb plate respectively with the chassis is connected, two seal the gluey pole and seal the gluey pole after with before rotationally being provided with between the curb plate, rotationally be provided with preceding pinch roller on the preceding gluey pole, rotationally be provided with back pinch roller on the back gluey pole, preceding glue seal the gluey pole and seal after with and be connected with between the gluey pole before making and seal the synchronous pivoted connecting rod of gluey pole after with, two be connected with the bracing piece between the curb plate, the bracing piece with it is connected with reset spring, one wherein to seal between the gluey pole after with be provided with cutting assembly on the curb plate, another one be provided with the sticky tape dish on the curb plate.
8. The automatic case sealer according to claim 7, wherein: the heights h of the front glue sealing rod and the rear glue sealing rod are respectively 15.5 cm.
9. The automatic case sealer according to claim 7, wherein: the cutting assembly comprises a connecting plate, a driving spring, a box pressing rod and a cutter, the connecting plate is rotatably arranged on the side plates, the driving spring is arranged between the connecting plate and the side plates, the box pressing rod and the cutter are respectively arranged on the connecting plate, the box pressing rod is located below the cutter, and a guide plate is arranged at the outer end of the cutter.
10. The automatic case sealer according to claim 9, wherein: the box pressing rod is made of thickened metal plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110946741.9A CN114604474A (en) | 2021-08-17 | 2021-08-17 | Automatic case sealer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110946741.9A CN114604474A (en) | 2021-08-17 | 2021-08-17 | Automatic case sealer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114604474A true CN114604474A (en) | 2022-06-10 |
Family
ID=81857696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110946741.9A Pending CN114604474A (en) | 2021-08-17 | 2021-08-17 | Automatic case sealer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114604474A (en) |
-
2021
- 2021-08-17 CN CN202110946741.9A patent/CN114604474A/en active Pending
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