CN212373808U - External ear mask ear folding feeding system and mask packaging line based on same - Google Patents
External ear mask ear folding feeding system and mask packaging line based on same Download PDFInfo
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- CN212373808U CN212373808U CN202021380988.6U CN202021380988U CN212373808U CN 212373808 U CN212373808 U CN 212373808U CN 202021380988 U CN202021380988 U CN 202021380988U CN 212373808 U CN212373808 U CN 212373808U
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Abstract
The utility model discloses an ear folding feed system of an external ear mask and a mask packaging line based on the same, the ear belt of the external ear mask is conveyed to an ear belt folding device in a standing mode, the ear belt is folded and pressed on the surface of a mask sheet by the ear belt folding device, meanwhile, a guide belt component acts and presses on the ear belt and the mask sheet to push the external ear mask to a belt conveying component, the ear belt is shaped on the mask sheet by hot pressing by a hot pressing shaping device, and then the external ear mask with shaped folded ears is continuously conveyed by the belt conveying component, so that the ear belt can be automatically folded on the surface of the mask sheet in the feed conveying process of the external ear mask, and the automatic ear folding function is realized; adopt the utility model discloses ear feed system's gauze mask baling line is rolled over to external ear gauze mask has and rolls over ear packing fast, efficient, can not kick-back and skew after the ear area is folded, pack the finished product rate high, and carry out corresponding adjustment and can be applicable to the ear packing of rolling over of the external ear gauze mask of different ear area length and different soft or hard degree gauze mask pieces.
Description
Technical Field
The utility model belongs to the technical field of gauze mask production packing, concretely relates to external ear gauze mask charge-in system that possesses automatic ear function and based on the gauze mask baling line that this system of group built.
Background
At present, the packaging of the external ear mask is that the ear bands of the external ear mask are manually folded into the plane range of the mask piece and then put on a feeding conveying frame, and the feeding conveying frame conveys the external ear mask to a pillow type packaging machine for packaging, so that the problems that the packaged mask is irregular and the ear bands are easily sealed and cut by the end of the packaging machine in the packaging process to become waste products are avoided; when packing production through above-mentioned ear mode, because the ear area of external ear gauze mask is elastic, the manual work is rolled over the ear and is put into the feeding carriage after, the ear area is kick-backed easily or is controlled askew, gets into the easy bullet of back in the packaging film and opens, easily leads to the quality problems that the packing appears, still has simultaneously to put the gauze mask more difficult, working strength is big, speed is slow, influences gauze mask packing efficiency, the unsuitable problem of mass packaging production.
Disclosure of Invention
The utility model aims at providing a can fold the ear area in the external ear gauze mask charge-in system and a gauze mask baling line based on this system is built in possessing automatic ear folding function on gauze mask piece surface automatically in external ear gauze mask charge-in transportation process.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an ear folding feeding system for an external ear mask comprises a feeding conveying frame for conveying the external ear mask along the direction perpendicular to the length direction of the external ear mask, wherein the feeding conveying frame conveys the external ear mask in a mode that ear belts stand at two ends of a mask piece; a belt conveying component is arranged behind the ear band folding device along the conveying direction of the external ear mask; be provided with guide belt subassembly between the ear area folding device, guide belt subassembly pushes down ear area and gauze mask piece and will roll over the auricle gauze mask propelling movement income belt conveyor assembly of ear when ear area folding device is with the ear area folding in the surface of gauze mask piece, ear area folding device and guide belt subassembly can reset after the auricle gauze mask is sent into belt conveyor assembly outside, belt conveyor assembly corresponds and is provided with hot pressing setting device, hot pressing setting device is stereotyped the ear area hot pressing and is continued to be transferred by belt conveyor assembly behind the gauze mask piece.
The ear belt of external ear gauze mask carries to ear belt folding device with the form of standing, fold the ear belt by ear belt folding device and press in the surface of gauze mask piece, meanwhile, guide belt subassembly action is pressed and is pressed on ear belt and gauze mask piece with external ear gauze mask propelling movement to belt conveyor assembly, stereotype in the gauze mask piece with ear belt hot pressing by hot pressing setting device, the external ear gauze mask who will stereotype the ear again by belt conveyor assembly continues to carry, realize folding the ear belt in gauze mask piece surface in external ear gauze mask feeding transportation process automatically, possess the automatic ear function of rolling over.
Preferably, side support plates are installed on both sides of the feeding frame to support the ear band from the outside so that the ear band stands when the external ear mask is conveyed.
Preferably, the ear strap folding device includes ear strap folding cylinder and ear strap folded sheet, the cylinder body of ear strap folding cylinder is installed in feeding carriage, the ear strap folded sheet is installed in the piston rod of ear strap folding cylinder and is located the outside of ear strap correspondingly, the piston rod of ear strap folding cylinder extends the action downwards to the surface of gauze mask piece to promote the ear strap folded sheet with the ear strap on the surface of gauze mask piece to can send into belt conveyor assembly back pulling ear strap folded sheet at outer earmuff and reset in order to carry out the action of the ear of folding next turn.
Furthermore, the two sides of the feeding conveying frame are located in front of the ear belt folding device and are provided with ear belt guide plates, and the ear belts are preliminarily bent towards the inner side by the ear belt guide plates.
Preferably, the belt conveying assembly comprises an upper belt conveying assembly and a lower belt conveying assembly, the upper belt conveying assembly and the lower belt conveying assembly are driven by a belt with a circular section, the upper belt conveying assembly and the lower belt conveying assembly are synchronously driven by a gear set, the material guiding belt assembly is driven by the belt with the circular section and is in transmission connection with a front end roller shaft of the upper belt conveying assembly through the belt with the circular section, the material guiding belt assembly is provided with an installation support, the installation support is installed on a front end roller shaft of the upper belt conveying assembly and is connected with the swing cylinder, and the swing cylinder acts to overturn and swing around the front end roller shaft of the upper belt conveying assembly; the circular cross section belt of last belt conveyor components and lower belt conveyor components corresponds from top to bottom, hot pressing setting device includes cushion down, the heating piece, heating piece mounting panel and ear area design cylinder, the cushion sets up in the both sides of lower belt conveyor components and the both ends ear of gauze mask piece correspond and with lower belt conveyor components's circular cross section belt top surface parallel and level down, the heating piece corresponds to set up under the cushion and installs in the heating piece mounting panel directly over, the heating piece mounting panel spanes and sets up in the top of last belt conveyor components, ear area design cylinder is connected drive heating piece mounting panel with the heating piece mounting panel and is driven the heating piece and go up and down. Folding the ear area in gauze mask piece surface at ear area folding device, swing cylinder action presses guide belt subassembly in the ear area of external ear gauze mask and the circular cross section belt of gauze mask piece surface through guide belt subassembly with between the circular cross section belt of external ear gauze mask propelling movement supreme belt conveyor subassembly and lower belt conveyor subassembly, then guide belt subassembly resets by swing cylinder pulling in order to carry out next circulation action, the external ear gauze mask that sends to between the circular cross section belt of supreme belt conveyor subassembly and lower belt conveyor subassembly then pushes down through ear area design cylinder drive heating block, stereotype the ear of ear area hot pressing in the gauze mask piece, in order to avoid the ear area to appear kick-backing or skew, the ear gauze mask that has rolled over after the hot pressing design continues to transfer by belt conveyor subassembly.
Further, the both ends ear that belt conveyor assembly's rear portion both sides correspond external ear gauze mask is provided with the bearing board, the external ear gauze mask of the ear of folding has already been stereotyped is transferred to the bearing board by belt conveyor assembly, it is provided with the unloader who drops from between the bearing board to press the external ear gauze mask of the ear of folding has already been stereotyped to lie in its top between the bearing board, this unloader prefers including unloading push pedal and unloading cylinder, the unloading push pedal sets up the top between the bearing board, the unloading cylinder sets up in the top of unloading push pedal and is connected the drive unloading push pedal with the unloading push pedal and goes up and down, can build the gauze mask baling line based on this external ear gauze mask ear folding ear feeding system on this basis, this gauze mask baling line includes pillow type packagine machine and the vertical feeding carriage that carries external ear gauze mask along external ear gauze mask length direction, this vertical feeding carriage's discharge end links up with this pillow type packagine machine, external ear gauze mask folding ear feeding carriage of feeding system sets up perpendicular to vertical feeding and carries and the feed end of carriage, ear area folding device sets up in the discharge end of feeding carriage, the unloader corresponds to set up in the feed end top of vertical feeding carriage and pushes down the outer ear gauze mask of having stereotyped ear of book by unloader and drop in the feed end of vertical feeding carriage from crowded propelling movement between the bearing board, outer ear gauze mask is folding ear feed system design through outer ear gauze mask and is folding ear back automatic crowded propelling movement of accessible unloader and drop in vertical feeding carriage, pack by vertical feeding carriage conveying to pillow type packagine machine, and outer ear gauze mask can accomplish the switching-over in the gauze mask packaging process when sending into vertical feeding carriage by outer ear gauze mask ear feed system.
The utility model discloses following beneficial effect has:
the utility model relates to an ear feed system is rolled over to external ear gauze mask, the ear area of external ear gauze mask carries to ear area folding device with the form of standing, fold the ear area by ear area folding device and press on the surface of gauze mask piece, meanwhile the action of guide belt subassembly is pressed on ear area and gauze mask piece and is pushed external ear gauze mask to belt conveyor assembly, the hot pressing setting device is with the ear area hot pressing setting on the gauze mask piece, and then the belt conveyor assembly continues to carry the external ear gauze mask of the ear of rolling over already fixed, realize that can fold the ear area on the surface of gauze mask piece automatically in the process of external ear gauze mask feeding transport, possess the automatic ear function of rolling over; adopt this external ear gauze mask to roll over ear charge-in system's gauze mask baling line, it is fast, efficient to roll over ear packing speed to have, can not kick-back and skew after the ear area is folded, pack the finished product rate high, and carry out corresponding adjustment and can be applicable to the ear packing of rolling over of the external ear gauze mask of different ear area length and different soft or hard degree gauze mask pieces.
Drawings
Fig. 1 is a schematic structural view of an ear-folding feeding system of an external ear mask of the present invention;
FIG. 2 is a view of the installation structure of the ear band folding device of the ear-folding feeding system of the external ear mask of the present invention;
fig. 3 is a schematic structural view of a belt conveying assembly, a material guiding belt assembly, a hot-pressing shaping device and a blanking device of the ear-folding mask feeding system of the utility model;
fig. 4 is a schematic structural view of a belt conveying assembly, a material guiding belt assembly, a hot-pressing shaping device and a blanking device of the ear-folding mask feeding system of the utility model;
fig. 5 is a schematic structural view of a belt conveying assembly, a material guiding belt assembly, a hot-press shaping device and a blanking device of the ear-folding mask feeding system of the utility model;
fig. 6 is based on the utility model discloses external ear gauze mask rolls over the structure schematic diagram of the gauze mask baling line that ear charge-in system constitutes.
Detailed Description
The invention will be further described with reference to the accompanying drawings and specific embodiments so as to more clearly understand the technical idea claimed in the invention.
As shown in fig. 1-5, the ear folding feed system for external ear mask of the present invention comprises a feed conveyor 1 for conveying external ear mask perpendicular to the length direction of external ear mask, wherein the feed conveyor 1 conveys external ear mask in a manner that ear belt 100 stands at both ends of mask sheet 101, preferably, side supporting plates 11 for supporting ear belt 100 from the outside when conveying external ear mask are installed at both sides of feed conveyor 1, so that ear belt 100 stands, ear belt folding devices 2 are installed at the outside of ear belt 100 on feed conveyor 1, and ear belt folding devices 2 fold ear belt 100 on the surface of mask sheet 101; a belt conveying component 3 is arranged behind the ear band folding device 2 along the conveying direction of the external ear mask; be provided with guide belt subassembly 4 between ear belt folding device 2, guide belt subassembly 4 pushes down ear belt 100 and gauze mask piece 101 and with the external ear gauze mask propelling movement belt conveyor component 3 who has rolled over the ear when ear belt folding device 2 folds ear belt 100 on the surface of gauze mask piece 101, ear belt folding device 2 and guide belt subassembly 4 can reset after external ear gauze mask sends into belt conveyor component 3, belt conveyor component 3 corresponds and is provided with hot pressing setting device 5, hot pressing setting device 5 is stereotyped ear belt 100 hot pressing and is continued to be transferred by belt conveyor component 3 behind gauze mask piece 101.
Ear belt folding device 2 specifically includes ear belt folding cylinder 21 and ear belt folded sheet 22, the cylinder body of ear belt folding cylinder 21 is installed in feeding carriage 1, ear belt folded sheet 22 is installed in the piston rod of ear belt folding cylinder 21 and is located the outside of ear belt 100 correspondingly, the piston rod of ear belt folding cylinder 21 extends the action downwards to the surface of gauze mask piece 101 to promote ear belt folded sheet 22 to fold ear belt 100 in the surface of gauze mask piece 101 to can send into belt conveyor component 3 at outer ear gauze mask and pull ear belt folded sheet 22 and reset and move in order to carry out the ear action of folding next. Ear belt guide plates 12 can be further arranged in front of the ear belt folding devices 2 on two sides of the feeding conveying frame 1, and the ear belt guide plates 12 are used for primarily bending the ear belts 100 towards the inner side so as to be more beneficial to ear bending action of the ear belt folding devices 2 on the rear side.
The belt conveying assembly 3 specifically comprises an upper belt conveying assembly 31 and a lower belt conveying assembly 32, the upper belt conveying assembly 31 and the lower belt conveying assembly 32 are driven by a belt 30 with a circular section, the upper belt conveying assembly 31 and the lower belt conveying assembly 32 are synchronously driven by a gear set 33, the material guiding belt assembly 4 is driven by the belt 30 with the circular section and the material guiding belt assembly 4 is in transmission connection with a front end roller shaft of the upper belt conveying assembly 31 through the belt 30 with the circular section, the material guiding belt assembly 4 is provided with a mounting bracket 40, the mounting bracket 40 is mounted on the front end roller shaft of the upper belt conveying assembly 31 and is connected with a swing cylinder 41, and the swing cylinder 41 acts to overturn and swing around the front end roller shaft of the upper belt conveying assembly 31; the circular cross section belt 30 of upper belt conveyor component 31 and lower belt conveyor component 32 corresponds from top to bottom, hot pressing setting device 5 includes cushion 51 down, heating block 52, heating block mounting panel 53 and ear area design cylinder 54, lower cushion 51 sets up and corresponds and the circular cross section belt 30 top surface parallel and level with lower belt conveyor component 32 in the both ends ear of lower belt conveyor component 32's both sides and gauze mask piece 101, heating block 52 corresponds to set up directly over cushion 51 down and installs in heating block mounting panel 53, heating block mounting panel 53 spans and sets up in the top of upper belt conveyor component 31, ear area design cylinder 54 is connected drive heating block mounting panel 53 with heating block mounting panel 53 and is driven heating block 52 and go up and down. When the ear belt 100 is folded on the surface of the mask piece 101 by the ear belt folding device 2, the swing cylinder 41 acts to press the material guiding belt assembly 4 on the surfaces of the ear belt 100 and the mask piece 101 of the external ear mask, the external ear mask is pushed to the position between the circular section belts 30 of the upper belt conveying assembly 31 and the lower belt conveying assembly 32 through the circular section belt 30 of the material guiding belt assembly 4, then the material guiding belt assembly 4 is pulled by the swing cylinder 41 to reset for the next cycle action, the external ear mask sent to the position between the circular section belts 30 of the upper belt conveying assembly 31 and the lower belt conveying assembly 32 is pushed downwards through the ear belt shaping cylinder 54 to drive the heating block 52, the ear belt 100 is hot-pressed and shaped on the ear part of the mask piece 101, so as to avoid the ear belt 100 from rebounding or deviating, and the ear belt 100 is continuously transferred through the ear bending mask after hot-pressing and shaping by the belt conveying assembly 3.
Meanwhile, the two sides of the rear part of the belt conveying assembly 3 are provided with supporting plates 6 corresponding to the ear parts at the two ends of the external ear mask, the external ear mask with shaped folded ears is transferred to the supporting plates 6 by the belt conveying assembly 3, a blanking device 7 which is used for pressing down the external ear mask with shaped folded ears and drops from the space between the supporting plates 6 is arranged between the supporting plates 6 and positioned above the supporting plates 6, the blanking device 7 comprises a blanking push plate 71 and a blanking cylinder 72, the blanking push plate 71 is arranged above the supporting plates 6, and the blanking cylinder 72 is arranged above the blanking push plate 71 and connected with the blanking push plate 71 to drive the blanking push plate 71 to lift; on the basis, as shown in fig. 6, a mask packaging line based on the external ear mask ear folding feeding system can be constructed, the mask packaging line comprises a pillow type packaging machine 8 and a longitudinal feeding conveying frame 9 for conveying the external ear mask along the length direction of the external ear mask, the discharge end of the longitudinal feeding conveying frame 9 is connected with the pillow type packaging machine 8, the feeding conveying frame 1 of the external ear mask ear folding feeding system is arranged at the feed end of the longitudinal feeding conveying frame 9 perpendicular to the longitudinal feeding conveying frame 9, an ear belt folding device 2 is arranged at the discharge end of the feeding conveying frame 1, a blanking device 7 is correspondingly arranged above the feed end of the longitudinal feeding conveying frame 9, the external ear mask with shaped ear folding is downwards pressed by the blanking device 7 and is extruded and dropped from between supporting plates 6 to the feed end of the longitudinal feeding conveying frame 9, so that the external ear mask can be automatically extruded and dropped on the longitudinal feeding conveying frame 9 by the blanking device 7 after the external ear mask ear folding feeding system is shaped and ear folding, pack to pillow formula packagine machine 8 by vertical feeding carriage 9 to the switching-over in the gauze mask packaging process can be accomplished to outer ear gauze mask when sending into vertical feeding carriage 9 by outer ear gauze mask book ear charge-in system, adopts the utility model discloses outer ear gauze mask book ear charge-in system's gauze mask baling line has book ear packing fast, efficient, can not kick-back and skew after ear area 100 is folding, pack the finished product rate high, and carry out corresponding adjustment and can be applicable to the book ear packing of the outer ear gauze mask of different ear area 100 area length and different soft or hard degree gauze mask piece 101.
Various other changes and modifications may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such changes and modifications should fall within the scope of the present invention.
Claims (8)
1. The utility model provides an external ear gauze mask book ear feed system, includes along perpendicular to external ear gauze mask length direction to carry out feeding carriage (1) that transport, its characterized in that to external ear gauze mask: the feeding conveying frame (1) conveys the external ear mask in a mode that ear belts (100) stand at two ends of a mask piece (101), ear belt folding devices (2) are installed on the feeding conveying frame (1) and located on the outer sides of the ear belts (100), and the ear belts (100) are folded on the surface of the mask piece (101) through the ear belt folding devices (2); a belt conveying component (3) is arranged behind the ear band folding device (2) along the conveying direction of the external ear mask;
be provided with guide belt subassembly (4) between ear area folding device (2), guide belt subassembly (4) are in ear area folding device (2) will ear area (100) fold in keep down during the surface of gauze mask piece (101) ear area (100) with gauze mask piece (101) and the external ear gauze mask propelling movement that will roll over the ear go into belt conveyor component (3), ear area folding device (2) reach guide belt subassembly (4) send into at the external ear gauze mask can reset behind belt conveyor component (3), belt conveyor component (3) correspond and are provided with hot pressing setting device (5), hot pressing setting device (5) will ear area (100) hot pressing be stereotyped in behind gauze mask piece (101) by belt conveyor component (3) continue to be transferred.
2. The outer ear mask ear-folding feed system of claim 1, wherein: the both ends ear that the rear portion both sides of belt conveyor subassembly (3) correspond external ear gauze mask is provided with supporting plate (6), the external ear gauze mask of book ear of having stereotyped by belt conveyor subassembly (3) transfer extremely supporting plate (6), it is provided with the external ear gauze mask who rolls over the ear of having stereotyped and pushes down the follow to lie in between supporting plate (6) it is provided with unloader (7) that drop between supporting plate (6).
3. The outer ear mask ear-folding feed system of claim 1, wherein: the two sides of the feeding conveying frame (1) are provided with side supporting plates (11) which are used for supporting the ear belt (100) from the outer side when the external ear mask is conveyed so that the ear belt (100) can stand.
4. The outer ear mask ear-folding feed system of claim 1, wherein: ear area folding device (2) include ear area folding cylinder (21) and ear area folded sheet (22), the cylinder body of ear area folding cylinder (21) install in feed conveyor (1), ear area folded sheet (22) install in the piston rod of ear area folding cylinder (21) and corresponding being located the outside of ear area (100), the piston rod of ear area folding cylinder (21) is the downward orientation of slope the surperficial extension action of gauze mask piece (101).
5. The outer ear mask ear-folding feed system according to claim 1 or 4, wherein: the both sides of feeding carriage (1) are located the place ahead of ear area folding device (2) is provided with ear area deflector (12), ear area deflector (12) are right ear area (100) are tentatively carried out and are bent towards the inboard direction.
6. The outer ear mask ear-folding feed system of claim 1, wherein: the belt conveying component (3) comprises an upper belt conveying component (31) and a lower belt conveying component (32), the upper belt conveying component (31) and the lower belt conveying component (32) are both driven by a belt (30) with a circular section, and the upper belt conveying assembly (31) and the lower belt conveying assembly (32) are synchronously driven by a gear set (33), the material guide belt component (4) is driven by a circular section belt (30), the material guide belt component (4) is in transmission connection with a roller shaft at the front end of the upper belt conveying component (31) through the circular section belt (30), the material guide belt component (4) is provided with a mounting bracket (40), the mounting bracket (40) is mounted on a front end roll shaft of the upper belt conveying assembly (31) and connected with a swing cylinder (41), and the swing cylinder (41) acts to overturn and swing around the front end roll shaft of the upper belt conveying assembly (31);
the circular section belts (30) of the upper belt conveying component (31) and the lower belt conveying component (32) are vertically corresponding, the hot-pressing shaping device (5) comprises a lower cushion block (51), a heating block (52), a heating block mounting plate (53) and an ear belt shaping cylinder (54), the lower cushion blocks (51) are arranged on two sides of the lower belt conveying component (32) and correspond to the ear parts at two ends of the mask sheet (101) and are flush with the top surface of the circular-section belt (30) of the lower belt conveying component (32), the heating block (52) is correspondingly arranged right above the lower cushion block (51) and is arranged on the heating block mounting plate (53), the heating block mounting plate (53) is arranged above the upper belt conveying assembly (31) in a crossing way, ear area design cylinder (54) with heating block mounting panel (53) are connected the drive heating block mounting panel (53) drive heating block (52) go up and down.
7. The outer ear mask ear-folding feed system of claim 2, wherein: the blanking device (7) comprises a blanking push plate (71) and a blanking cylinder (72), the blanking push plate (71) is arranged above the supporting plates (6), and the blanking cylinder (72) is arranged above the blanking push plate (71) and connected with the blanking push plate (71) to drive the blanking push plate (71) to lift.
8. The utility model provides a mask baling line, includes pillow package machine (8) and vertical feeding carriage (9) that carry out the transport along external ear gauze mask length direction to external ear gauze mask, the discharge end of this vertical feeding carriage (9) links up its characterized in that with this pillow package machine (8): the external ear mask ear folding feeding system comprises an external ear mask ear folding feeding system according to claim 2, wherein a feeding conveying frame (1) is perpendicular to the longitudinal feeding conveying frame (9) and is arranged at a feeding end of the longitudinal feeding conveying frame (9), an ear band folding device (2) is arranged at a discharging end of the feeding conveying frame (1), and a blanking device (7) is correspondingly arranged above the feeding end of the longitudinal feeding conveying frame (9) and is used for pressing down the external ear mask with shaped ear folding by the blanking device (7) and extruding and pushing the external ear mask with the shaped ear folding from the position between the supporting plates (6) and dropping at the feeding end of the longitudinal feeding conveying frame (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021380988.6U CN212373808U (en) | 2020-07-14 | 2020-07-14 | External ear mask ear folding feeding system and mask packaging line based on same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021380988.6U CN212373808U (en) | 2020-07-14 | 2020-07-14 | External ear mask ear folding feeding system and mask packaging line based on same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212373808U true CN212373808U (en) | 2021-01-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021380988.6U Active CN212373808U (en) | 2020-07-14 | 2020-07-14 | External ear mask ear folding feeding system and mask packaging line based on same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212373808U (en) |
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2020
- 2020-07-14 CN CN202021380988.6U patent/CN212373808U/en active Active
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