CN212528734U - Weld ear band device and wear-type gauze mask production facility - Google Patents
Weld ear band device and wear-type gauze mask production facility Download PDFInfo
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- CN212528734U CN212528734U CN202021709707.7U CN202021709707U CN212528734U CN 212528734 U CN212528734 U CN 212528734U CN 202021709707 U CN202021709707 U CN 202021709707U CN 212528734 U CN212528734 U CN 212528734U
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Abstract
The utility model discloses a weld ear belt device and wear-type gauze mask production facility, wherein, weld the ear belt device and include: the ear guiding belt mechanism is arranged on one side of a conveying line of the head-mounted mask production equipment; the ear belt pulling mechanism is used for pulling the ear belt guided by the ear belt guiding mechanism from one side of the conveying line to the other side along the bottom end of the cloth on the conveying line; the ear belt cutting mechanism is used for cutting the ear belt guided by the ear belt guiding mechanism; the ear belt clamping mechanism comprises a left clamping structure and a right clamping structure which are respectively arranged on two sides of the conveying line and are respectively used for clamping two ends of the cut ear belt and moving to ear belt welding points on two sides of the upper mask body of the cloth; the ear belt welding mechanism comprises a left ear belt welding structure and a right ear belt welding structure which are respectively arranged on two sides of the conveying line, and the left ear belt welding structure and the right ear belt welding structure are respectively used for correspondingly welding and fixing two ends of an ear belt on the ear belt welding points. The utility model discloses technical scheme weld the welding that the ear strap device can be used for wear-type gauze mask ear strap, has improved the suitability of welding the ear strap device.
Description
Technical Field
The utility model relates to a gauze mask production facility field, in particular to weld ear-band device and wear-type gauze mask production facility.
Background
Common masks in the market are classified into ear-wearing masks and head-wearing masks; when welding the ear belt of the head-wearing mask in the process, the mask body of the head-wearing mask needs to be folded in half firstly, and when producing the head-wearing mask, the ear belt welding device firstly tiles the mask body on the cloth, and then welds the ear belt on the mask body on the cloth, so that the ear belt welding device for producing the head-wearing mask is not suitable for production of the head-wearing mask, and based on the above, the technical personnel in the field need to improve the ear belt welding device urgently so as to be suitable for production of the head-wearing mask.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a weld ear belt device aims at making and welds ear belt device and can be used for the welding of wear-type gauze mask ear belt to improve the suitability of welding ear belt device.
In order to achieve the above object, the utility model provides a weld ear belt device, include:
the ear guiding belt mechanism is arranged on one side of a conveying line of the head-mounted mask production equipment;
the ear belt pulling mechanism is used for pulling the ear belt guided by the ear belt guiding mechanism from one side of the conveying line to the other side along the bottom end of the cloth on the conveying line;
the ear band cutting mechanism is used for cutting the ear band guided by the ear band guiding mechanism;
the ear belt clamping mechanism comprises a left clamping structure and a right clamping structure which are respectively arranged on two sides of the conveying line and are respectively used for clamping two ends of the cut ear belt and moving to the ear belt welding points on two sides of the upper mask body of the cloth;
ear area welding mechanism locates including dividing left ear area welded structure and the right ear area welded structure of transfer chain both sides are used for respectively with the both ends of ear area correspond welded fastening in the ear area welding point.
Optionally, the ear belt clamping mechanism comprises a transmission structure crossing two sides of the conveying line, and the left clamping structure and the right clamping structure are movably arranged on the transmission structure so as to movably adjust the distance between the left clamping structure and the right clamping structure and the upper mask body of the cloth.
Optionally, the left clamping structure and the right clamping structure respectively comprise a clamping part and a connecting part, the clamping part is used for clamping the ear belt, one end of the connecting part is connected with the transmission structure, and the other end of the connecting part is rotatably connected with the clamping part.
Optionally, the connecting portion includes a first connecting rod and a second connecting rod, one of the first connecting rod and the second connecting rod is connected to the transmission structure, the other one of the first connecting rod and the second connecting rod is connected to the clamping portion, and the first connecting rod is rotatably connected to the second connecting rod.
Optionally, the ear belt pulling mechanism includes a conveying belt crossing two sides of the conveying line and a wire clamping structure arranged on the conveying belt, the wire clamping structure is used for clamping the ear belt, and the conveying belt can move back and forth on two sides of the conveying line to drive the wire clamping structure to pull the ear belt.
Optionally, the thread clamping structure includes the dead lever and locates the thread clamping of dead lever is detained, the dead lever with conveyer belt fixed connection, the thread clamping is detained and is formed with the centre gripping the thread clamping mouth of ear area, the thread clamping mouth with the conveying surface parallel and level setting of conveyer belt.
Optionally, the ear-band cutting mechanism comprises a supporting structure, a sliding structure and a cutting structure, the supporting structure is vertically arranged on the bottom box of the head-wearing mask production equipment, the sliding structure is arranged on the supporting structure and along the vertical extension of the supporting structure, and the cutting structure is connected with the supporting structure through the sliding structure.
Optionally, the ear belt guiding mechanism comprises a plurality of rollers arranged along the conveying line of the ear belt to enable the ear belt to move smoothly.
The utility model also provides a wear-type gauze mask production facility includes cloth feeding device, wears nose roof beam strip device, annular knurl device, folding device in proper order along direction of delivery, rolls in advance and cuts the device, welds the ear belt device, banding device, last roll and cuts device and discharging device, should weld the ear belt device and include:
the ear guiding belt mechanism is arranged on one side of a conveying line of the head-mounted mask production equipment;
the ear belt pulling mechanism is used for pulling the ear belt guided by the ear belt guiding mechanism from one side of the conveying line to the other side along the bottom end of the cloth on the conveying line;
the ear band cutting mechanism is used for cutting the ear band guided by the ear band guiding mechanism;
the ear belt clamping mechanism comprises a left clamping structure and a right clamping structure which are respectively arranged on two sides of the conveying line and are respectively used for clamping two ends of the cut ear belt and moving to ear belt welding points on two sides of the mask body;
ear area welding mechanism locates including dividing left ear area welded structure and the right ear area welded structure of transfer chain both sides are used for respectively with the both ends of ear area correspond welded fastening in the ear area welding point.
Optionally, the head-mounted mask production equipment is provided with at least two ear welding belt devices between the pre-rolling cutting device and the edge sealing device.
The utility model discloses technical scheme is through on welding the ear belt device, the processing circuit along the ear area sets gradually and leads ear area mechanism, draw ear area mechanism, cut ear area mechanism, ear area clamp is got mechanism and ear area welding mechanism, with realize leading-in ear area respectively, tensile ear area, cut the ear area, press from both sides and get ear area both ends and remove respectively to gauze mask face body both sides on the cloth, and weld ear area both ends on the ear area welding point of gauze mask face body on the cloth, through making up the arrangement to the mechanism of difference, realized welding the ear area process to the gauze mask of folding state, the suitability of welding the ear belt device has been improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural view of an embodiment of the welding lug belt device of the present invention;
FIG. 2 is a schematic structural view of the weld-lug device of FIG. 1 from another perspective;
FIG. 3 is a schematic structural view of the ear strap pulling mechanism and the ear strap cutting mechanism shown in FIG. 1;
FIG. 4 is an enlarged view of a portion of FIG. 3 at A;
FIG. 5 is a schematic structural view of the earband clamping mechanism of FIG. 1;
FIG. 6 is a partial enlarged view of FIG. 5 at B;
fig. 7 is a schematic structural view of an embodiment of the head-mounted mask production apparatus of the present invention.
The reference numbers illustrate:
the objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The utility model provides a weld ear strap device, mainly used wear-type gauze mask production facility, this wear-type gauze mask production facility can be for full-automatic gauze mask production facility, semi-automatic gauze mask production facility etc. this design does not do the restriction to this.
Considering the convenience of industrial production of the head-mounted mask comprehensively, in this embodiment, the head-mounted mask production equipment is full-automatic mask production equipment, referring to fig. 7, and the head-mounted mask production equipment sequentially comprises a cloth supply device 2000, a nose beam strip penetrating device 3000, a knurling device 4000, a folding device 5000, a pre-rolling cutting device 6000, an ear belt welding device 1000, an edge sealing device 7000, a final rolling cutting device 8000 and a discharging device 9000 along a conveying direction; the general working flow is as follows: after the multi-layer cloth is discharged from the cloth supply device 2000, the processed mask is removed by the discharge device 9000 after sequentially performing procedures of nose bridge threading, knurling, folding, pre-hobbing, ear band welding, edge sealing, re-hobbing and the like.
It is easy to understand that, after the mask surface body on the cloth is folded by the folding device 5000, the mask surface body is spread in the vertical direction and then conveyed on the conveying line, after the ear straps are welded on the mask surface body on the cloth, the ear straps are accommodated and drooped to the lower side area of the mask surface body on the cloth under the influence of gravity, based on the above, in this embodiment, a pre-rolling cutting device 6000 is added between the folding device 5000 and the ear strap welding device 1000 to pre-cut the lower side area of the mask surface body on the cloth, and on the subsequent process flow line, the upper side area of the mask surface body on the cloth is cut by the last rolling cutting device 8000, so that the situation that the ear straps are cut under the influence of the cutting process is avoided, it should be noted that in this embodiment, the lower side area of the mask surface body on the cloth is only a description word, which means that the ear straps are welded on the mask surface body, in other embodiments, the pre-rolling device 6000 may pre-cut the middle region of the upper mask body without limitation.
Specifically, in order to collect the waste materials generated after the pre-rolling cutting device 6000 is pre-cut, in this embodiment, the head-mounted mask production equipment further includes a waste material collecting device disposed between the pre-rolling cutting device 6000 and the ear belt welding device 1000, so that the waste materials can be effectively prevented from being accumulated between the pre-rolling cutting device 6000 and the ear belt welding device 1000, and the normal operation of each device is affected and the environment of a production workshop is polluted.
Without loss of generality, the head-mounted mask production equipment further comprises a deviation correcting device arranged between the cloth supply device 2000 and the nose penetrating beam strip device 3000, the deviation correcting device is used for conveying mask surface bodies located on cloth between the cloth supply device 2000 and the nose penetrating beam strip device 3000, and therefore the situation that the mask surface bodies on the cloth deviate in the long-distance conveying process and the processing of the mask surface bodies on the cloth by a follow-up device is influenced is avoided.
In this embodiment, in order to effectively improve the efficiency of the ear welding band process and then improve the output of the head-mounted mask production equipment per unit time, the head-mounted mask production equipment is at least provided with two ear welding band devices 1000 between the pre-rolling cutting device 6000 and the edge banding device 7000. It should be noted that the design is not limited thereto, and in other embodiments, the head-mounted mask production equipment may also be specifically provided with other numbers of lug welding devices, which is not limited thereto.
A specific structure of an embodiment of the weld lug apparatus 1000 will be described below, and referring to fig. 1 to 6, the weld lug apparatus 1000 includes:
the ear guiding belt mechanism 1 is arranged on one side of a conveying line of the head-mounted mask production equipment;
the ear belt pulling mechanism 2 is used for pulling the ear belt guided in by the ear belt guiding mechanism 1 from one side of the conveying line to the other side along the bottom end of the cloth on the conveying line;
the ear band cutting mechanism 3 is used for cutting the ear band guided in by the ear band guiding mechanism 1;
the ear band clamping mechanism 4 comprises a left clamping structure 41 and a right clamping structure 42 which are respectively arranged at two sides of the conveying line and are respectively used for clamping two ends of the cut ear band and moving to the ear band welding points at two sides of the cloth upper mask body;
the ear belt welding mechanism 5 comprises a left ear belt welding structure 51 and a right ear belt welding structure 52 which are respectively arranged at two sides of the conveying line and are respectively used for correspondingly welding and fixing two ends of an ear belt on the ear belt welding points.
It can be understood that, referring to fig. 1 and fig. 2, the support plate of the head-wearing mask production equipment is arranged above the bottom box of the head-wearing mask production equipment and extends along the direction of the conveying line, the support plate is used for placing the mask surface body on the cloth, the ear guiding mechanism 1 and the ear shearing mechanism 3 are arranged on the same side of the support plate, the ear pulling mechanism 2 is arranged at the bottom end of the support plate and can reciprocate on the left side and the right side of the support plate, the left clamping structure 41 and the right clamping structure 42 are respectively arranged on the left side and the right side of the support plate, and similarly, the left ear band welding structure 51 and the right ear band welding structure 52 are also respectively arranged on the left side and the right side of the support plate; specifically, taking the ear guiding belt and the ear shearing belt both arranged on the right side of the supporting plate as an example, the welding flow of the ear belt is approximately as follows: the ear strap is from the right side of backup pad in the process flow of leading-in ear strap mechanism 1 by the leading-in ear strap, draw ear strap mechanism 2 to move to backup pad right side and press from both sides the one end of getting the ear strap and return the left side, treat to draw ear strap mechanism 2 to move the back that resets, the ear strap forms the ear strap section under cutting out of cutting out ear strap mechanism 3, later, the both ends of ear strap section are got structure 41 and the right side respectively and are got the ear strap welding point that moves to the gauze mask face body left and right sides on the cloth under the centre gripping of structure 42 is got to the left side, again through left ear strap welded structure 51 and right ear strap welded structure 52 the welding action be fixed in on the gauze mask face body on the cloth, so, end ear.
The utility model discloses technical scheme is through on welding ear belt device 1000, the processing circuit along the ear area sets gradually and leads ear belt mechanism 1, draw ear belt mechanism 2, cut ear belt mechanism 3, the ear belt clamp is got mechanism 4 and ear belt welding mechanism 5, in order to realize leading-in ear area respectively, tensile ear belt, cut the ear belt, press from both sides and get ear belt both ends and remove respectively to gauze mask face body both sides on the cloth, and weld ear belt both ends on the ear belt welding point of gauze mask face body on the cloth, arrange through making up the mechanism to the difference, realized welding the ear belt process to the gauze mask of folded form, the suitability of welding ear belt device 1000 has been improved.
Optionally, the ear belt clamping mechanism 4 comprises a transmission structure 43 crossing two sides of the conveying line, and the left clamping structure 41 and the right clamping structure 42 are movably arranged on the transmission structure 43 to movably adjust the distance between the ear belt clamping mechanism and the upper mask body of the cloth. It can be understood that, with such an arrangement, the distance between the left clamping structure 41 and the support plate and the distance between the right clamping structure 42 and the support plate are convenient to adjust and control, in other words, the transmission structure 43 is used for a user to adjust and control the distance between the left clamping structure 41 and the right clamping structure 42 so as to clamp the earbelt sections with different lengths, thereby meeting the production requirements of different specifications of head-worn masks; without loss of generality, in the present embodiment, the transmission structure 43 is a conveyor belt that is widely used and cheap in the prior art, and it should be noted that the design is not limited thereto, and in other embodiments, the transmission structure 43 may also be embodied in other structural forms, which is not limited thereto.
Alternatively, the left gripping structure 41 and the right gripping structure 42 each include a gripping part 411 and a connecting part 412, the gripping part 411 is used for gripping the ear belt, and the connecting part 412 is connected to the transmission structure 43 at one end and is rotatably connected to the gripping part 411 at the other end. Referring to fig. 5 and 6, it can be understood that the clamping structure clamps the ear band and moves to the ear band welding position of the mask surface body on the cloth, and the ear band is regulated and controlled to the position of the ear band welding point by rotating the connection angle between the regulation and control part 412, so that the accuracy of the ear band welding process is guaranteed, and the mask production yield is improved. It should be noted that the design is not limited thereto, and in other embodiments, the clamping unit 411 may be connected to the connecting unit 412 in a swinging manner, which is not limited thereto.
Alternatively, the connecting portion 412 includes a first connecting rod 412a and a second connecting rod 412b, one of the first connecting rod 412a and the second connecting rod 412b is connected to the transmission structure 43, the other one is connected to the clamping portion 411, and the first connecting rod 412a is rotatably connected to the second connecting rod 412 b. It is understood that the connection angle between the first connection rod 412a and the second connection rod 412b is adjusted to facilitate the clamping portion 411 to move back and forth between the ear strap clamping point and the ear strap welding point more flexibly, although the design is not limited thereto, and in other embodiments, the first connection rod 412a may be connected to the second connection rod 412b in a swinging manner, which is not limited thereto.
Optionally, the ear band pulling mechanism 2 includes a conveying belt 21 crossing two sides of the conveying line, and a wire clamping structure 22 disposed on the conveying belt 21, the wire clamping structure 22 is used for clamping the ear band, and the conveying belt 21 can move back and forth on two sides of the conveying line to drive the wire clamping structure 22 to pull the ear band. It can be understood that the conveying belt 21 is a transmission device widely used in the prior art, and has low price and convenient installation; the wire clamping structure 22 repeatedly clamps and stretches wires by reciprocating the conveying belts 21 on the left side and the right side of the supporting plate; it should be noted that the design is not limited thereto, and in other embodiments, the conveyor belt 21 may also be embodied in other structures for the wire clamping structure 22 to reciprocate on the left and right sides of the supporting plate.
Optionally, the thread clamping structure 22 includes a fixing rod 221 and a thread clamping buckle 222 disposed on the fixing rod 221, the fixing rod 221 is fixedly connected with the conveying belt 21, the thread clamping buckle 222 is formed with a thread clamping opening for clamping the ear belt, and the thread clamping opening is disposed flush with the conveying surface of the conveying belt 21. It can be understood that the conveying surface of the conveying belt 21 plays a role of supporting the ear belt in the process of stretching the ear belt, and the ear belt is prevented from sagging due to the weight effect, so that the stretched ear belt length is not in accordance with the process specification. It should be noted that the present design is not limited thereto, and in other embodiments, the wire clamping opening may be disposed higher than the conveying surface of the conveying belt 21, which is not limited thereto.
Optionally, the ear-band cutting mechanism 3 includes a supporting structure 31, a sliding structure (not shown in the figure), and a cutting structure 32, the supporting structure 31 is vertically disposed on the bottom box of the head-mounted mask production equipment, the sliding structure is disposed on the supporting structure 31 and extends along the vertical direction of the supporting structure 31, and the cutting structure 32 is connected to the supporting structure 31 through the sliding structure. It can be understood that, with the sliding structure, the ear band cutting mechanism 3 can flexibly adjust the height of the cutting structure 32, so as to adjust the height when cutting the ear band, and thus flexibly adapt to the requirements of different ear band welding processes. Specifically, in this embodiment, the sliding structure includes a sliding rail laid on the supporting structure 31 along the vertical direction, and a sliding block fixed to one end of the shearing structure 32 close to the supporting structure 31, and the sliding block is assembled with the sliding rail in a sliding manner; it should be noted that the design is not limited thereto, and in other embodiments, the sliding structure may be configured in other forms.
Optionally, the ear belt guiding mechanism 1 comprises a plurality of rollers 11 arranged along the conveying path of the ear belt to make the ear belt move smoothly. Referring to fig. 1 and 2, without loss of generality, the ear belt guiding mechanism 1 includes a plurality of rollers 11 arranged along the transverse direction and a plurality of rollers 11 arranged along the vertical direction, and it can be understood that the rollers 11 can provide supporting points for the ear belts in the process of guiding the ear belts, and meanwhile, the ear belts can be favorably and smoothly moved through the sliding contact between the ear belts and the rollers 11.
The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.
Claims (10)
1. The utility model provides a weld ear belt device for wear-type gauze mask production facility which characterized in that includes:
the ear guiding belt mechanism is arranged on one side of a conveying line of the head-mounted mask production equipment;
the ear belt pulling mechanism is used for pulling the ear belt guided by the ear belt guiding mechanism from one side of the conveying line to the other side along the bottom end of the cloth on the conveying line;
the ear band cutting mechanism is used for cutting the ear band guided by the ear band guiding mechanism;
the ear belt clamping mechanism comprises a left clamping structure and a right clamping structure which are respectively arranged on two sides of the conveying line and are respectively used for clamping two ends of the cut ear belt and moving to the ear belt welding points on two sides of the upper mask body of the cloth;
ear area welding mechanism locates including dividing left ear area welded structure and the right ear area welded structure of transfer chain both sides are used for respectively with the both ends of ear area correspond welded fastening in the ear area welding point.
2. The device for welding the ear belt according to claim 1, characterized in that the ear belt clamping mechanism comprises a transmission structure crossing two sides of the conveying line, and the left clamping structure and the right clamping structure are movably arranged on the transmission structure so as to movably adjust the distance between the left clamping structure and the cloth upper mask.
3. The weld ear band device of claim 2, wherein the left and right gripping structures each comprise a gripping portion for gripping the ear band and a connecting portion pivotally connected at one end to the transmission structure and at the other end to the gripping portion.
4. The weld ear band device of claim 3, wherein the connecting portion includes a first connecting rod and a second connecting rod, one of the first connecting rod and the second connecting rod being connected to the transmission structure and the other being connected to the clamping portion, the first connecting rod being rotatably connected to the second connecting rod.
5. The weld ear band device according to claim 1, wherein the ear band pulling mechanism comprises a conveyor belt crossing both sides of the conveyor line and a wire clamping structure disposed on the conveyor belt, the wire clamping structure is used for clamping the ear band, and the conveyor belt can move back and forth on both sides of the conveyor line to drive the wire clamping structure to stretch the ear band.
6. The weld ear band device according to claim 5, characterized in that the wire clamping structure comprises a fixing rod and a wire clamping buckle arranged on the fixing rod, the fixing rod is fixedly connected with the conveying belt, the wire clamping buckle is provided with a wire clamping opening for clamping the ear band, and the wire clamping opening is flush with the conveying surface of the conveying belt.
7. The ear welding belt device according to claim 1, wherein the ear shearing belt mechanism comprises a supporting structure, a sliding structure and a shearing structure, the supporting structure is vertically arranged on a bottom box of the head-wearing mask production equipment, the sliding structure is arranged on the supporting structure and extends along the vertical direction of the supporting structure, and the shearing structure is connected with the supporting structure through the sliding structure.
8. The weld ear band device of claim 1, wherein the ear band guide mechanism includes a plurality of rollers disposed along the feed path of the ear band to provide a smooth movement of the ear band.
9. A head-mounted mask production device is characterized by comprising a cloth supply device, a nose beam penetrating device, a knurling device, a folding device, a pre-rolling cutting device, an ear welding belt device according to any one of claims 1 to 8, a sealing device, a final rolling cutting device and a discharging device in sequence along a conveying direction.
10. The apparatus for manufacturing a mask according to claim 9, wherein at least two of the ear welding belt devices are provided between the pre-hobbing device and the edge banding device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021709707.7U CN212528734U (en) | 2020-08-17 | 2020-08-17 | Weld ear band device and wear-type gauze mask production facility |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021709707.7U CN212528734U (en) | 2020-08-17 | 2020-08-17 | Weld ear band device and wear-type gauze mask production facility |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212528734U true CN212528734U (en) | 2021-02-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021709707.7U Active CN212528734U (en) | 2020-08-17 | 2020-08-17 | Weld ear band device and wear-type gauze mask production facility |
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| Country | Link |
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| CN (1) | CN212528734U (en) |
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2020
- 2020-08-17 CN CN202021709707.7U patent/CN212528734U/en active Active
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