CN109094903A - Cut tearable mouth equipment - Google Patents
Cut tearable mouth equipment Download PDFInfo
- Publication number
- CN109094903A CN109094903A CN201810984328.XA CN201810984328A CN109094903A CN 109094903 A CN109094903 A CN 109094903A CN 201810984328 A CN201810984328 A CN 201810984328A CN 109094903 A CN109094903 A CN 109094903A
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- CN
- China
- Prior art keywords
- cutter
- cutting
- tearable mouth
- floating arm
- sliding block
- Prior art date
- 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.)
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Classifications
-
- 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
- B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
- B65B61/18—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for making package-opening or unpacking elements
- B65B61/184—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for making package-opening or unpacking elements by applying tabs over discharge openings, e.g. over discharge openings defined by tear or score lines
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control And Other Processes For Unpacking Of Materials (AREA)
- Auxiliary Devices For And Details Of Packaging Control (AREA)
Abstract
One kind cutting tearable mouth equipment, including mounting rack, rotation axis, cutter floating arm and cutter.One end of the cutter floating arm is arranged in the cutter, the cutter floating arm is set in the rotation axis, the rotation axis is rotationally connected on the mounting rack, the cutter drives the cutter floating arm to swing centered on the rotation axis while sliding along cut surface, and the cutter is made to cut out the tearable mouth of uniform depth on cut surface.
Description
Technical field
The present invention relates to packaging fields more particularly to one kind to cut tearable mouth equipment.
Background technique
As the circulation of commodity economy is flourishing, product after the assembly of completion group, generally require to carry out long-distance transportation with into
Row circulation.Correspondingly, this product is typically encased in packing box, to avoid being damaged in long-distance transportation and being convenient for stream
Turn.In general, in order to promote the sealing performance of packing box, for example waterproof, anti-gas-leak, in the prior art often in packing box
Attached one layer of heat shrinkage film is wrapped on outer surface.User is when using this product, it is necessary first to the heat shrinkage film of packaging box outer surfac is dismantled,
And packaged heat shrinkage film is more difficult manually tears.Correspondingly, how to realize that tearable mouth is formed in heat shrinkage film then becomes needs
Consider the problems of.The position of the existing cutter for cutting tearable mouth equipment is fixed greatly, when cut surface is uneven, easily
The quality of tearing notch is difficult to ensure.
Summary of the invention
In view of the above situation, the present invention provides one kind and cuts tearable mouth equipment.
One kind cutting tearable mouth equipment, including mounting rack, rotation axis, cutter floating arm and cutter, and the cutter is arranged in institute
One end of cutter floating arm is stated, the cutter floating arm is set in the rotation axis, and the rotation axis is rotationally connected to institute
It states on mounting rack, the cutter drives the cutter floating arm to be with the rotation axis while cutting out tearable mouth along cut surface
Pivot.
Further, the other end of the cutter floating arm is provided with clump weight, and the clump weight is for adjusting described cut
The cutting force of knife.
Further, the tearable mouth equipment of cutting includes cutter rotating velocity adjustment device, and the cutter rotating velocity adjusts device packet
Driving motor and governor are included, one end of the governor is connect with the cutter, the other end of the governor and the drive
Dynamic motor drive connection, the driving motor drive the governor rotation, and the governor is for driving the cutter and adjusting
The revolving speed of whole cutter.
Further, the tearable mouth equipment of cutting includes tool retracting device, and the tool retracting device setting is floated in the cutter
Armband has one end of the clump weight, and after the completion of tearable mouth cutting, the tool retracting device, which pushes the cutter floating arm, makes institute
Cutter is stated to lift.
Further, the tool retracting device includes fixed plate and the withdrawing cylinder that is mounted in the fixed plate, described solid
Fixed board is fixedly connected with the mounting rack, and the withdrawing cylinder makes the cutter and packing box for depressing the cutter floating arm
Separation.
Preferably, the tearable mouth equipment of cutting includes rotary components, and the rotary components include rotating electric machine and drive shaft,
The both ends of the drive shaft are separately connected the rotating electric machine and the mounting rack, and the rotating electric machine passes through the drive shaft band
The mounting rack rotation is moved, the cutter is made to cut out tearable mouth of different shapes.
Further, the rotary components include gantry support, and the gantry support bottom is provided with packaging to be cut
Box, the rotating electric machine are mounted on the gantry support, and the mounting rack is outstanding by the drive shaft and the rotating electric machine
It is hung on the gantry support.
Preferably, the tearable mouth equipment of cutting includes press mold component, and the press mold component is arranged in the rotation axis simultaneously
And contacted with the cut surface, it compresses by the packaging film of cut place.
Preferably, the press mold component includes sliding block, sliding block floating arm；The sliding block floating arm is set in the rotation axis
On；The sliding block is rotatably connected on the sliding block floating arm close to one end of the cutter, and the sliding block is along the cut surface
Press-through pack film when sliding；The sliding block floating arm is swung with the movement of the sliding block around the rotation axis.
The cutter provided by the invention for cutting tearable mouth equipment is slided along the profile of cut surface, band while cutting tearable mouth
Dynamic cutter floating arm swing, so as to cut out the tearable mouth of uniform depth, uniform quality using cut surface as machining benchmark.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for cutting tearable mouth equipment automatically of embodiment one.
Fig. 2 is the structural schematic diagram for cutting tearable mouth equipment other direction shown in Fig. 1 automatically.
Fig. 3 is to cut the rotary components of tearable mouth equipment and the structural schematic diagram of cutting assembly automatically shown in Fig. 1.
Fig. 4 is the structural schematic diagram of rotary components shown in Fig. 3 and cutting assembly other direction.
Fig. 5 is the structural schematic diagram for cutting tearable mouth equipment automatically of embodiment two.
Fig. 6 is the structural schematic diagram for cutting tearable mouth equipment other direction shown in Fig. 5 automatically.
Fig. 7 is the structural representation for cutting the rotary components, cutting assembly and press mold component of tearable mouth equipment shown in Fig. 5 automatically
Figure.
Fig. 8 is the structural schematic diagram of rotary components shown in Fig. 7, cutting assembly and press mold component other direction.
Main element symbol description:
Specific embodiment:
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that the described embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.Based on this
Embodiment in invention, every other reality obtained by those of ordinary skill in the art without making creative efforts
Example is applied, shall fall within the protection scope of the present invention.
Embodiment one
Fig. 1 and Fig. 2 are please referred to, the present invention provides one kind and cuts tearable mouth equipment automatically, can be in the packet on 50 surface of packing box
The tearable mouth of various shapes is cut out on dress film.It is described to cut tearable mouth equipment automatically and include cutting assembly 10, rotary components 20, send box
Component 30 and gantry support 40.Rotary components 20 include rotating electric machine 21, drive shaft 22 and mounting rack 23.Rotating electric machine 21 is pacified
Mounted in the top plate upper end of gantry support 40, drive shaft 22 connects rotating electric machine 21 and passes through the top plate of gantry support 40, mounting rack
23 are fixed at the lower end of drive shaft 22.Rotating electric machine 21 drives mounting rack 23 centered on drive shaft 22 by drive shaft 22
It is rotated in the horizontal plane.Cutting assembly 10 is mounted on mounting rack 23, with 23 common rotation of mounting rack.40 bottom of gantry support
Portion is fixedly connected with one piece of bottom plate 41, and case assembly 30 is sent to be arranged on bottom plate 41.Cutting assembly 10 is separately set with case assembly 30 is sent
It sets, packing box 50 to be cut, which is placed on, to be sent on case assembly 30, when case assembly 30 being sent to transport packing box 50 according to preset path, is cut
Cut the tearable mouth that component 10 cuts out preset shape on the cut surface of packing box 50.
Fig. 3 and Fig. 4 are please referred to, mounting rack 23 includes connecting plate 231 and the mounting plate 232 being fixedly connected with connecting plate 231,
Connecting plate 231 is fixed on the lower end of drive shaft 22, and cutting assembly 10 is mounted on mounting plate 232.Rotating electric machine 21 drives driving
Axis 22 rotates, so that mounting rack 23 and cutting assembly 10 be driven to rotate.Cutting assembly 10 includes rotation axis 11, cutter floating arm
12, clump weight 13, cutter 16 and cutter rotating velocity adjustment device (being not marked in figure), it includes driving electricity that cutter rotating velocity, which adjusts device,
Machine 14 and governor 15.In the present embodiment, the substantially wafer type cutter of cutter 16.The both ends of rotation axis 11 are rotatably mounted
In bearing block 17, bearing block 17 is fixed on position of the inside close to lower end of mounting plate 232.The fixation of cutter floating arm 12 is arranged
In rotation axis 11, clump weight 13 is fixedly mounted on the tail end of cutter floating arm 12, and cutter 16 and governor 15 are mounted on cutter
The front end of floating arm 12, driving motor 14 are fixedly mounted on the position in cutter floating arm close to rotation axis 11.Governor 15
Middle part is connect with cutter floating arm 12, and one end installs cutter 16, and the other end and driving motor 14 are sequentially connected.In governor 15
Transmission shaft (not shown) and the Multi-stage transmission gear (not shown) revolving speed that inputs driving motor 14 increase, then export to cutting
Knife 16.16 revolving speed of cutter is higher, and notch is more smooth.
Clump weight 13 adjusts the cutting force and depth of cut of cutter 16 by lever principle.When depth of cut needs to increase
When, the quantity or weight of clump weight 13 are reduced, the cutting force of cutter 16 increases, and the depth for the tearable mouth being cut into also accordingly increases
Add.When depth of cut needs to reduce, increase the quantity or weight of clump weight 13, the cutting force of cutter 16 is reduced, is cut into
The depth of tearable mouth accordingly reduce.The quantity or weight of clump weight 13 adjust before cutting tearable mouth process, cut tearable mouth mistake
Clump weight 13 remains unchanged in journey, and therefore, the cutting force for cutting cutter 16 during tearable mouth is kept constant.Packing box 50 is opposite to be cut
When knife 16 moves, cutter 16 is slided along cut surface, to cut out tearable mouth on the packaging film on 50 surface of packing box.If by cutting
Face is uneven, drives cutter floating arm 12 to swing up and down in 16 sliding process of cutter, and the tearable mouth for cutting out cutter 16 is deep
The case where degree is uniform, is cut bad or non-cutter there is no packaging film.
12 tail end of cutter floating arm is additionally provided with a tool retracting device (being not marked in figure), after the completion of tearable mouth cutting,
Tool retracting device pushes 12 tail end of cutter floating arm, lifts cutter 16 and separates with cut surface.Tool retracting device includes fixed plate 18
With withdrawing cylinder 19, fixed plate 18 is fixedly connected with mounting plate 232, and withdrawing cylinder 19 is fixedly mounted in fixed plate 18 and position
In the top of 12 tail end of cutter floating arm.After cutter 16 cuts tearable mouth, the piston rod of withdrawing cylinder 19 stretches out, and cutter is floated
The tail end of swing arm 12 pushes, so that cutter 16 be made to be lifted, separates with cut surface, realizes withdrawing process.
Sending case assembly 30 referring to FIG. 1 to FIG. 4, includes sending kit platform 31, the first track 32, the second track 33 and sending box
Motor 34.Packing box 50, which is placed on, to be sent on kit platform 31.First track 32 and the orthogonal setting of the second track 33, collectively constitute
Send box orbit (being not marked in figure).Kit platform 31 is sent to be movably disposed on the second track 33, the second track 33 is movably
It is arranged on the first track 32, send box motor 34 for driving the second track 33 to move and send kit platform on the first track 32
31 sliding on the second track 33.It send and is also equipped with box body fixing device (being not marked in figure) on kit platform 31, for fixing
Packing box 50 to be cut.Box body fixing device includes fixed cylinder 35, compressing member 36 and box body locating piece 37, compressing member 36
The side of box body locating piece 37 is set and is connect with the piston rod of fixed cylinder 35.Packing box 50 is put into box body locating piece 37
Groove after, fixed cylinder 35 pushes compressing member 36, packing box 50 is fixed in box body locating piece 37, when tearable mouth has been cut
Cheng Hou, the piston rod retraction of fixed cylinder 35, drives compressing member 36 to unclamp packing box 50, makes the packing box 50 with tearable mouth can
To be taken out from box body locating piece 37.
Below by taking U-typed tearable mouth as an example, the course of work for cutting tearable mouth automatically of the invention is illustrated.Cutting group
After the regulating of part 10, first packing box 50 is fixed on and is sent on kit platform 31, send kit platform 31 along sending box orbit to move, will pack
Box 50 is sent to 10 lower section of cutting assembly, and then the piston rod retraction of withdrawing cylinder 19, makes cutter 16 fall to the quilt of packing box 50
Cut surface.It send kit platform 31 first to move one end distance along the second track 33, cutter 16 is made to cut out one on packing box 50 vertically
Tearable mouth, then rotary components 20 drive cutting assembly 10 rotate clockwise 90 degree, the second track 33 drives again send kit platform
31 move a distance along the first track 32, and the tearable mouth that cutter 16 is cut out at this time is " L " type with fillet, then rotation group
Part 20 drives cutting assembly 10 to rotate clockwise 90 degree again, and kit platform 31 is sent inversely to move same distance along the second track 33,
So far, cutter 16 cuts out U-typed tearable mouth on 50 surface of packing box.Finally, withdrawing cylinder 19 pushes the tail of cutter floating arm 12
End, is lifted cutter 16, and the packing box 50 for completing cutting is sent case assembly 30 to remove.If desired easily tearing for other shapes is cut out
Mouthful, it need to only adjust the motion path for sending case assembly 30 and rotary components 20.
Embodiment two
Fig. 5 to Fig. 8 is please referred to, the tearable mouth equipment of cutting automatically of embodiment two cuts tearable mouth with the automatic of embodiment one substantially
Equipment is roughly the same, and difference is, the tearable mouth equipment of cutting automatically of embodiment two includes a press mold component 60.Press mold component 60
Including sliding block floating arm 61 and sliding block 62.Sliding block floating arm 61 is rotatably sleeved in rotation axis 11, and is floated with cutter
Arm 12 is separately arranged.Sliding block 62 is rotatably arranged in sliding block floating arm 61 close to one end of cutter 16.Cutting tearable mouth mistake
Cheng Zhong, sliding block 62 are bonded cut surface movement, will be pushed down by the packaging film of cut place, and packaging film in cutting process is avoided to tilt,
To influence tearable mouth quality.Sliding block floating arm 61 is moved and is swung up and down with sliding block 62, makes the perfect fitting quilt of sliding block 62
The outer profile of cut surface can will be pushed down by the packaging film of cut place and imitate the excessive cutting for influencing cutter 16 of pressure
Fruit.
The sliding block 62 of the present embodiment can be spherical, idler wheel shape or side has the dissymmetrical structure of smooth arc-shaped surface.
Embodiment three
The automatic tearable mouth equipment of cutting of embodiment three is substantially roughly the same with the automatic tearable mouth equipment of cutting of embodiment one, area
It is not, the tearable mouth equipment of cutting automatically of embodiment three includes a detection device (not shown).The detection device is for examining
Surveying packing box 50 to be cut whether there is, when detection device detects packing box 50, the driving motor 14 of cutting assembly 10
Starting, otherwise driving motor 14 stops.
Example IV
The automatic tearable mouth equipment of cutting of example IV is substantially roughly the same with the automatic tearable mouth equipment of cutting of embodiment one, area
Be not, cutting automatically for example IV is provided with a sliding block (not shown) on the cutter 16 of tearable mouth equipment, slider bottom with
The difference in height of 16 bottom of cutter is adjustable.During cutting tearable mouth, sliding block is bonded cut surface sliding, by the packaging of cut place
Membrane pressure is lived, and guarantees that the depth of cut of tearable mouth is consistent.
Embodiment five
The automatic tearable mouth equipment of cutting of embodiment five is substantially roughly the same with the automatic tearable mouth equipment of cutting of embodiment one, area
It is not, the substantially disk zigzag of cutter 16 for cutting tearable mouth equipment automatically of embodiment five, the cutter rotating velocity of embodiment one
It adjusts device to cancel, in the motion process of packing box 50, cutter 16 is rolled along cut surface, cuts out void in such a way that hard crush-cutting is cut
The tearable mouth of line style.In the present embodiment, it is provided with gasket between packing box 50 and packaging film, prevents packing box 50 from being cut bad.
Embodiment six
Embodiment six cuts that tearable mouth equipment is roughly the same with embodiment one, and difference is, the cutter 16 of embodiment six is big
It causes to be aciculiform or the flat shape of the mouth as one speaks, the cutter rotating velocity adjustment device of embodiment one is replaced by a cutter controller (not shown).It cuts
Knife controller pumps for controlling cutter 16, and the tearable mouth of dotted line type is cut out on cut surface.
Profile sliding and cutting force of the cutter 16 provided by the invention for cutting tearable mouth equipment along cut surface can lead to
13 flexible modulation of clump weight is crossed, so as to using cut surface as machining benchmark, cut out uniform depth, the easy of uniform quality is torn
Mouthful.The setting of press mold component 60 can compress the coating materials of incision simultaneously, and coating materials when cutting is avoided to tilt.
Embodiment of above is only used to illustrate the technical scheme of the present invention and not to limit it, although referring to the above preferable embodiment party
Formula describes the invention in detail, those skilled in the art should understand that, it can be to technical solution of the present invention
It modifies or equivalent replacement should not all be detached from the spirit and scope of technical solution of the present invention.
Claims (9)
1. one kind cuts tearable mouth equipment, including mounting rack, rotation axis, cutter floating arm and cutter, it is characterised in that: described to cut
One end of the cutter floating arm is arranged in knife, and the cutter floating arm is set in the rotation axis, the rotation axis rotation
Ground is connected on the mounting rack, and the cutter drives the cutter floating arm with institute while cutting out tearable mouth along cut surface
It states and swings centered on rotation axis.
2. cutting tearable mouth equipment as described in claim 1, it is characterised in that: the other end of the cutter floating arm, which is provided with, matches
Pouring weight, the clump weight are used to adjust the cutting force of the cutter.
3. cutting tearable mouth equipment as claimed in claim 2, it is characterised in that: the tearable mouth equipment of cutting includes cutter rotating velocity tune
Engagement positions, the cutter rotating velocity adjustment device include driving motor and governor, and one end of the governor and the cutter connect
It connects, the other end of the governor and the driving motor are sequentially connected, and the driving motor drives the governor rotation, institute
Governor is stated to be used to drive the cutter and adjust the revolving speed of cutter.
4. cutting tearable mouth equipment as claimed in claim 3, it is characterised in that: the tearable mouth equipment of cutting includes tool retracting device,
One end that the cutter floating arm has the clump weight is arranged in the tool retracting device, described after the completion of tearable mouth cutting
Tool retracting device, which pushes the cutter floating arm, lifts the cutter.
5. cutting tearable mouth equipment as claimed in claim 4, it is characterised in that: the tool retracting device includes fixed plate and is mounted on
Withdrawing cylinder in the fixed plate, the fixed plate are fixedly connected with the mounting rack, and the withdrawing cylinder is for depressing institute
Stating cutter floating arm separates the cutter with packing box.
6. cutting tearable mouth equipment as described in claim 1, it is characterised in that: the tearable mouth equipment of cutting includes rotary components,
The rotary components include rotating electric machine and drive shaft, and the both ends of the drive shaft are separately connected the rotating electric machine and the peace
It shelves, the rotating electric machine drives the mounting rack to rotate by the drive shaft, cuts out the cutter of different shapes easy
Tearing notch.
7. cutting tearable mouth equipment as claimed in claim 6, it is characterised in that: the rotary components include gantry support, described
Gantry support bottom is provided with packing box to be cut, and the rotating electric machine is mounted on the gantry support, the mounting rack
It is hung on the gantry support by the drive shaft and the rotating electric machine.
8. cutting tearable mouth equipment as described in claim 1, it is characterised in that: the tearable mouth equipment of cutting includes press mold component,
The press mold component is arranged in the rotation axis and contacts with the cut surface, compresses by the packaging film of cut place.
9. cutting tearable mouth equipment as claimed in claim 8, it is characterised in that: the press mold component includes sliding block, sliding block floating
Arm；The sliding block floating arm is set in the rotation axis；The sliding block is rotatably connected on the sliding block floating arm close to described
One end of cutter, press-through pack film when the sliding block is slided along the cut surface；The sliding block floating arm is with the sliding block
It is mobile to be swung around the rotation axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810984328.XA CN109094903B (en) | 2018-08-28 | 2018-08-28 | Cut easy tear mouth equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810984328.XA CN109094903B (en) | 2018-08-28 | 2018-08-28 | Cut easy tear mouth equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109094903A true CN109094903A (en) | 2018-12-28 |
| CN109094903B CN109094903B (en) | 2020-08-25 |
Family
ID=64851502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810984328.XA Active CN109094903B (en) | 2018-08-28 | 2018-08-28 | Cut easy tear mouth equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109094903B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109733695A (en) * | 2019-01-30 | 2019-05-10 | 彭文丽 | A kind of tearable mouth process equipment and technique |
| CN112278458A (en) * | 2020-11-13 | 2021-01-29 | 佛山市研合智能机械有限公司 | Easy-to-tear opening cutting device for packaging bag and packaging equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1132201A (en) * | 1964-11-10 | 1968-10-30 | Derek Henry Youngman | Improvements in mechanism for producing tear-strips |
| JP2003054504A (en) * | 2001-08-15 | 2003-02-26 | Hoxy Co Ltd | Manufacturing method of toilet roll package |
| CN201770036U (en) * | 2010-08-16 | 2011-03-23 | 浏阳市慧丰印刷科技有限公司 | Easy-to-tear mouth automatic cutting device for medicament packaging bag |
| CN202716482U (en) * | 2012-02-24 | 2013-02-06 | 珠海瑞创科技发展有限公司 | Connected bag package rolling-cut device of packaging machine |
| CN207404057U (en) * | 2017-11-07 | 2018-05-25 | 佛山市锦田包装机械有限公司 | Novel package machine tearable mouth notch component |
-
2018
- 2018-08-28 CN CN201810984328.XA patent/CN109094903B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1132201A (en) * | 1964-11-10 | 1968-10-30 | Derek Henry Youngman | Improvements in mechanism for producing tear-strips |
| JP2003054504A (en) * | 2001-08-15 | 2003-02-26 | Hoxy Co Ltd | Manufacturing method of toilet roll package |
| CN201770036U (en) * | 2010-08-16 | 2011-03-23 | 浏阳市慧丰印刷科技有限公司 | Easy-to-tear mouth automatic cutting device for medicament packaging bag |
| CN202716482U (en) * | 2012-02-24 | 2013-02-06 | 珠海瑞创科技发展有限公司 | Connected bag package rolling-cut device of packaging machine |
| CN207404057U (en) * | 2017-11-07 | 2018-05-25 | 佛山市锦田包装机械有限公司 | Novel package machine tearable mouth notch component |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109733695A (en) * | 2019-01-30 | 2019-05-10 | 彭文丽 | A kind of tearable mouth process equipment and technique |
| CN112278458A (en) * | 2020-11-13 | 2021-01-29 | 佛山市研合智能机械有限公司 | Easy-to-tear opening cutting device for packaging bag and packaging equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109094903B (en) | 2020-08-25 |
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