CN213568831U - Unloader and gauze mask machine - Google Patents

Abstract

The utility model provides a blanking device and a mask machine, wherein the blanking device comprises a balancing weight and a detection component, the balancing weight is provided with a first wire groove for winding ear wires, and the first wire groove is arranged along the periphery of the balancing weight; the detection part has the transmitting part that is used for transmitting the photoelectricity signal and receives the receiving part of photoelectricity signal, transmitting part and receiving part all set up towards the balancing weight that is located preset position, whether to confirm whether the balancing weight is skew preset position according to whether receiving part can receive the photoelectricity signal through the balancing weight reflection, and then confirm to twine the tensile degree of establishing the ear belt line on the balancing weight, so that the length of a plurality of ear belt sections of final definite equals, the error between a plurality of ear belt sections of final definite has greatly been reduced, thereby solve the problem that the ear belt line fixed length mode of the gauze mask machine among the prior art produces great error easily.

Description

Unloader and gauze mask machine

Technical Field

The utility model relates to a gauze mask production technical field particularly, relates to an unloader and gauze mask machine.

Background

At present, the automatic blanking of ear belt lines has been realized to current gauze mask machine.

However, the traditional mask machine adopts the mode that the motion was dragged to carry out the fixed length to the ear strap line, because the ear strap line is elastic, when the tensile degree of ear strap line is different, causes the error of fixed length easily, and then leads to ear strap length deviation, influences the gauze mask and uses.

SUMMERY OF THE UTILITY MODEL

A primary object of the utility model is to provide an unloader and gauze mask machine to the problem of the great error of easy production of the ear belt line fixed length mode of the gauze mask machine among the solution prior art.

In order to achieve the above object, according to an aspect of the present invention, there is provided a discharging device, including: the counterweight block is provided with a first wire groove for winding an ear wire, and the first wire groove is arranged along the periphery of the counterweight block; the detection part, the detection part have the portion of launching that is used for launching the photoelectricity signal and receive the receiving part of photoelectricity signal, and the portion of launching and the receiving part all set up towards the balancing weight that is located preset position to whether can receive the photoelectricity signal through the balancing weight reflection according to the receiving part and determine whether the balancing weight is skew preset position, and then confirm to twine the tensile degree of establishing the ear belt line on the balancing weight.

Furthermore, the blanking device also comprises two sliding rods, and the two sliding rods are arranged oppositely; the balancing weight is provided with a sliding chute which is arranged along the periphery of the balancing weight; the balancing weight is located between two slide bars, and at least part of each slide bar all sets up in the spout to make the balancing weight slidable along two slide bars.

Further, unloader still includes: the wire drawing wheel is rotatably arranged; the pressing wheel is provided with a second wire groove which is arranged along the periphery of the pressing wheel; the pressing wheel is contacted with the wire drawing wheel so that the wire drawing wheel drives the pressing wheel to rotate and further enables the ear ribbon wire to move; wherein, the balancing weight is located the below of pinch roller to the ear area line that makes to pass through the second wire casing twines and establishes in first wire casing.

Furthermore, the blanking device also comprises a first wire passing wheel which is rotatably arranged, the first wire passing wheel is provided with a third wire groove, and the third wire groove is arranged along the periphery of the first wire passing wheel; wherein, the first wire wheel is arranged above the balancing weight so as to wind the ear belt wire passing through the first wire groove in the third wire groove.

Further, unloader still includes: the first clamp is positioned at the downstream of the balancing weight and is used for clamping the earring line; a second gripper having a gripping position and a fixed-length position relative to the first gripper, the second gripper being reciprocally movable between the gripping position and the fixed-length position; wherein the second gripper is adapted to grip an end of the ear band wire protruding from the first gripper when the second gripper is in the gripping position; when the second clamp moves from the clamping position to the fixed-length position, the first clamp releases the ear belt line so that the second clamp drives the ear belt line to move; after the second clamp moves to the fixed-length position, the first clamp clamps the ear belt line.

Further, unloader still includes shearing part, and shearing part is located one side that is close to the second anchor clamps of first anchor clamps to after the second anchor clamps drive the tip of earring line and remove to fixed length position, shearing part is used for cutting out the earring section of invariable length.

Further, unloader still includes: the first clamping part is movably arranged on one side of the first clamp and is used for clamping one end of the ear belt section clamped by the first clamp; and the second clamping part is movably arranged on one side of the second clamp and is used for clamping the other end of the ear belt section so as to respectively feed the two ends of the ear belt section to two welding positions on the corresponding mask sheets through the first clamping part and the second clamping part.

Furthermore, the blanking device further comprises a stop block, the stop block is sleeved on one of the two slide bars, and the stop block is located above the balancing weight to limit the balancing weight.

According to another aspect of the utility model, a gauze mask machine is provided, it includes foretell unloader.

Furthermore, the number of the blanking devices is two, and the two blanking devices are respectively positioned on two sides of a conveying path of the conveying mask sheet.

By applying the technical scheme of the utility model, the blanking device comprises a balancing weight and a detection part, the balancing weight is provided with a first wire groove for winding the ear belt wire, and the first wire groove is arranged along the periphery of the balancing weight; by arranging the detection component, the transmitting part and the receiving part of the detection component are both arranged towards the balancing weight positioned at the preset position, namely when the balancing weight is positioned at the preset position, the transmitting part and the receiving part are both arranged opposite to the balancing weight, and the photoelectric signal transmitted by the transmitting part is reflected to the receiving part through the balancing weight so that the receiving part receives the photoelectric signal; because the balancing weight has certain pressure to the ear belt line wound in the first wire groove, the stretching degree of the ear belt line can be influenced, and meanwhile, the ear belt lines with different stretching degrees can also influence whether the balancing weight is positioned at the preset position, so that whether the ear belt line is stretched properly can be determined by determining whether the balancing weight deviates from the preset position; when the balancing weight is at the preset position, the lengths of the plurality of ear belt segments determined by the ear belt lines under the corresponding stretching degrees are the same; when the balancing weight deviates, errors can be generated on the lengths of the plurality of determined ear belt sections, and if the errors are too large, the quality of the finally formed mask can be affected. Therefore, the blanking device can greatly reduce errors among a plurality of finally determined ear belt sections, and further solve the problem that a great error is easily generated in the ear belt line fixed length mode of the mask machine in the prior art.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 shows a schematic structural view of an embodiment of a blanking device according to the present invention;

fig. 2 is a schematic view showing the structural arrangement of a stay wire wheel, a pressing wheel, a first wire passing wheel and a balancing weight of the blanking device in fig. 1;

FIG. 3 is an enlarged view of the blanking device shown in FIG. 1 at B;

fig. 4 is a schematic structural arrangement diagram of a second wire passing wheel and a fourth wire arranging part of the blanking device in fig. 1;

fig. 5 shows a schematic structural arrangement diagram of two blanking devices according to the present invention.

Wherein the figures include the following reference numerals:

100. a blanking device;

11. a balancing weight; 111. a first wire slot; 112. a chute;

13. a wire pulling wheel; 14. a pinch roller; 141. a second wire slot; 15. a first wire passing wheel; 151. a third wire slot; 16. a wire-passing rod; 17. a first wire arranging part; 171. a first wire arranging hole; 18. a drive motor; 19. a second wire arranging part; 191. a second wire arranging hole;

20. a slide bar; 21. a stopper;

31. a first clamp; 32. a second clamp; 321. a drive member; 33. a shearing member;

51. a third wire arranging part; 511. a third wire arranging hole; 52. a fourth wire arranging part; 521. a fourth wire arranging hole;

53. a second wire passing wheel; 531. a fourth wire slot;

60. a fixed mount; 61. and (7) installing holes.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The utility model provides a blanking device 100, please refer to fig. 1 to 5, the blanking device 100 comprises a balancing weight 11 and a detection component, the balancing weight 11 is provided with a first wire groove 111 for winding an ear wire, the first wire groove 111 is arranged along the periphery of the balancing weight 11; the detection part has the portion of launching that is used for launching the photoelectricity signal and the receiving part of receiving the photoelectricity signal, and the portion of launching and the receiving part all set up towards the balancing weight 11 that is located preset position to whether can receive the photoelectricity signal through balancing weight 11 reflection according to the receiving part and determine whether balancing weight 11 deviates from preset position, and then confirm the tensile degree of twining the ear belt line of establishing on balancing weight 11.

In the blanking device 100 of the present invention, by arranging the detecting component, and making the emitting part and the receiving part of the detecting component both set toward the counterweight 11 located at the preset position, i.e. when the counterweight 11 is located at the preset position, the emitting part and the receiving part both set opposite to the counterweight 11, the photoelectric signal emitted by the emitting part is reflected to the receiving part through the counterweight 11, so that the receiving part receives the photoelectric signal; because the balancing weight 11 has a certain pressure on the ear belt line wound in the first line groove 111, the stretching degree of the ear belt line is influenced, and meanwhile, the ear belt lines with different stretching degrees also influence whether the balancing weight 11 is in the preset position, so that whether the stretching of the ear belt line is proper or not can be determined by determining whether the balancing weight 11 deviates from the preset position; when the counterweight block 11 is at the preset position, the lengths of the plurality of ear belt segments determined by the ear belt lines under the corresponding stretching degrees are the same; when the weight block 11 deviates, errors are generated in the lengths of the plurality of determined ear band sections, and if the errors are too large, the quality of the finally formed mask is affected. Therefore, by using the blanking device 100, errors among a plurality of finally determined ear belt segments can be greatly reduced, and the problem that a great error is easily generated in the ear belt line length fixing mode of the mask machine in the prior art is solved.

Optionally, the detection component is a reflective photosensor.

Alternatively, the weight of the weight block 11 may be increased or decreased according to the elasticity difference of the ear band lines and the actual condition.

Specifically, as shown in fig. 1 and fig. 2, the blanking device 100 further includes two sliding rods 20, and the two sliding rods 20 are disposed oppositely; the counterweight block 11 is provided with a sliding chute 112, and the sliding chute 112 is arranged along the periphery of the counterweight block 11; the counterweight block 11 is positioned between the two sliding rods 20, and at least part of each sliding rod 20 is arranged in the sliding groove 112, so that the counterweight block 11 can slide along the two sliding rods 20; namely, the counterweight block 11 can slide up and down along the two sliding rods 20, so that the counterweight block 11 is maintained at a preset position under the action of the gravity and the inertia force of the counterweight block and the action force of the ear belt line on the counterweight block; when the elasticity and the stretching degree of the ear belt line are different, the acting force of the ear belt line on the counterweight block 11 is also different. Because the ear belt lines of different batches can have elastic difference, when the ear belt lines with different elastic degrees are wound in the first line groove 111, the movement inertia of the balancing weight 11 can be adjusted by selecting the balancing weight 11 with proper weight and adjusting the highest height of the balancing weight 11 capable of moving along the sliding rod 20, so that the adjustment and control of the stretching length of the ear belt lines wound in the first line groove 111 are realized, and the length difference between the finally formed ear belt sections caused by the elastic difference is eliminated.

Specifically, the first wire groove 111 and the slide groove 112 are both annular grooves.

Alternatively, the first wire groove 111 and the sliding groove 112 are arranged at intervals in a direction perpendicular to the sliding direction of the weight block 11.

Specifically, as shown in fig. 1 and 2, the blanking device 100 further includes a stay wire wheel 13 and a pinch roller 14, wherein the stay wire wheel 13 is rotatably arranged; puck 14 has a second linear groove 141, second linear groove 141 being disposed along a periphery of puck 14; the pinch roller 14 is in contact with the wire drawing wheel 13, so that the wire drawing wheel 13 drives the pinch roller 14 to rotate, and the ear belt line moves, and the ear belt line is prevented from being excessively pulled to influence the stretching of the ear belt line; wherein, the counterweight block 11 is positioned below the pressing wheel 14, so that the ear belt line passing through the second line groove 141 is wound in the first line groove 111.

Optionally, the center of the wire pulling wheel 13 and the center of the pressing wheel 14 are located on the same horizontal plane, i.e. the weight 11 is also located below the wire pulling wheel 13.

Specifically, as shown in fig. 1 and 2, the blanking device 100 further includes a first thread passing wheel 15, the first thread passing wheel 15 is rotatably disposed, the first thread passing wheel 15 has a third thread groove 151, and the third thread groove 151 is arranged along an outer periphery of the first thread passing wheel 15; the first thread guiding wheel 15 is located above the weight block 11, so that the ear thread passing through the first thread groove 111 is wound in the third thread groove 151.

Optionally, the first wire roller 15 is located on the side of the wire roller 13 away from the pressing wheel 14.

In the specific implementation process, the ear belt line passes through a part of the groove section of the second wire groove 141, which is located between the body of the wire pulling wheel 13 and the pressing wheel 14, from top to bottom, then is wound in the first wire groove 111 from the lower direction of the counterweight block 11 downwards, then is wound in the third wire groove 151 from the side, close to the wire pulling wheel 13, of the first wire passing wheel 15 upwards, and passes through the ear belt line in the third wire groove 151 and is arranged downwards.

Preferably, the counterweight 11 is located directly below the stay wire wheel 13.

Specifically, the blanking device 100 further comprises a fixed frame 60, a first rotating shaft, a second rotating shaft and a third rotating shaft, wherein the first rotating shaft is rotatably arranged on the fixed frame 60 in a penetrating manner, and the wire pulling wheel 13 is sleeved on the first rotating shaft so that the first rotating shaft drives the wire pulling wheel 13 to rotate; the second rotating shaft and the third rotating shaft are both arranged on the fixing frame 60 in a penetrating way, the pinch roller 14 is rotatably sleeved on the second rotating shaft, and the first line passing wheel 15 is rotatably sleeved on the third rotating shaft. Alternatively, the fixing frame 60 is plate-shaped.

Specifically, the blanking device 100 further comprises a driving motor 18, and an output shaft of the driving motor 18 is connected with the first rotating shaft to drive the wire drawing wheel 13 to rotate. Alternatively, the drive motor 18 is a stepper motor.

Specifically, the blanking device 100 further includes an upper fixing seat and a lower fixing seat which are arranged at an upper and lower interval, the upper fixing seat and the lower fixing seat are both fixedly arranged on the fixing frame 60, and two ends of each sliding rod 20 are respectively fixedly connected with the upper fixing seat and the lower fixing seat.

In this embodiment, as shown in fig. 1 and fig. 2, the blanking device 100 further includes a stopper 21, the stopper 21 is sleeved on one of the two sliding rods 20, the stopper 21 is located above the counterweight block 11, and the counterweight block 11 is limited by contacting the stopper 21 with the counterweight block 11; i.e. the maximum height of the counterweight 11 along the sliding rod 20 that can be moved, by adjusting the position of the stop 21 on the sliding rod 20. When the elasticity of the ear belt line is poor, namely the elastic force of the ear belt line is small, the length of the finally formed ear belt section needs to be increased, at the moment, the stop block 21 can be adjusted to a higher position along the sliding rod 20 so as to increase the highest height of the counterweight block 11 capable of moving along the sliding rod 20 and further increase the movement inertia of the counterweight block 11; when the elasticity of the ear belt line is better, that is, the elastic force of the ear belt line is larger, the length of the finally formed ear belt section needs to be reduced, at this time, the stop block 21 can be adjusted to a lower position along the sliding rod 20 to reduce the highest height of the counterweight block 11 capable of moving along the sliding rod 20, and further reduce the movement inertia of the counterweight block 11.

Alternatively, the stopper 21 is cylindrical.

In the present embodiment, as shown in fig. 1 and 3, the blanking device 100 further includes a first clamp 31 and a second clamp 32, the first clamp 31 is located downstream of the counterweight 11, and the first clamp 31 is used for clamping the ear belt line; the second gripper 32 has a gripping position and a fixed-length position with respect to the first gripper 31, and the second gripper 32 is reciprocally movable between the gripping position and the fixed-length position.

In this embodiment, the blanking device 100 further includes a cutting member 33, the cutting member 33 is located on a side of the first clamp 31 close to the second clamp 32, so that after the second clamp 32 drives the end of the ear strap wire to move to the fixed length position, the cutting member 33 is used for cutting out an ear strap segment with a constant length.

In a specific implementation process, firstly, when the second clamp 32 is located at a fixed-length position, the first clamp 31 clamps the end part of the ear strap wire passing through the third wire slot 151; when the second gripper 32 moves from its fixed-length position to the gripping position, the second gripper 32 grips the end of the ear band wire protruding from the first gripper 31; when the second clamp 32 moves from the clamping position to the fixed-length position, the first clamp 31 releases the ear strap wire, so that the second clamp 32 drives the ear strap wire to move; when the second clamp 32 is moved to the fixed length position, the first clamp 31 clamps the ear strap wire, and the cutting member 33 cuts the ear strap wire so that the first clamp 31 clamps the end portion of the ear strap wire again.

Optionally, the cutting member 33 includes a first cutting portion and a second cutting portion, the first cutting portion and the second cutting portion are respectively located above and below a path along which the second fixture 32 drives the ear strap line to move, and the first cutting portion is movably disposed to enable the cutting member 33 to perform a cutting action.

Optionally, the blanking device 100 further comprises a driving part 321, and an output shaft of the driving part 321 is connected with the second clamp 32 to drive the second clamp 32 to move between the clamping position and the fixed-length position thereof. Preferably, the driving part 321 is a cylinder.

Alternatively, the first clamp 31 includes a first clamp cylinder and two clamp plates, and the first clamp cylinder is connected to one of the clamp plates to drive the clamp plate to move relative to the other clamp plate to perform a clamping or releasing action on the two clamp plates.

Optionally, the second clamp 32 includes a second clamp cylinder and two clamping jaws, and the second clamp cylinder drives the two clamping jaws to move so as to clamp or release the two clamping jaws.

In this embodiment, the blanking device 100 further includes a first clamping member movably disposed at one side of the first clamp 31 for clamping one end of the ear band segment clamped by the first clamp 31, and a second clamping member movably disposed at one side of the second clamp 32 for clamping the other end of the ear band segment clamped by the second clamp 32, so as to respectively blank the two ends of the ear band segment to two welding positions on the corresponding mask piece by the first clamping member and the second clamping member, thereby improving the production efficiency of the mask.

Specifically, as shown in fig. 1 and 2, the blanking device 100 further includes a first wire arranging portion 17, and the first wire arranging portion 17 has a first wire arranging hole 171 through which the ear belt wire passes. Optionally, the first wire management part 17 is a stripe.

Specifically, the blanking device 100 further includes a wire rod 16, and the first wire arranging portion 17 is located upstream of the wire rod 16.

Specifically, the blanking device 100 further comprises a second wire arranging part 19, wherein the second wire arranging part 19 is provided with a second wire arranging hole 191 for the ear belt wire to penetrate through; the wire rod 16 is located at the upstream of the second wire arranging part 19, the second wire arranging part 19 is located at the upstream of the pressing wheel 14, namely, the ear ribbon wire passes through the first wire arranging hole 171, is erected above the wire rod 16, passes out of the second wire arranging hole 191, and passes through a part of groove section, located between the body of the wire pulling wheel 13 and the pressing wheel 14, of the second wire groove 141 from top to bottom. Optionally, the second wire management part 19 is plate-shaped.

Optionally, the second wire arranging part 19 is fixedly arranged on the fixed frame 60, and the second wire arranging part 19 is positioned above the space between the wire pulling wheel 13 and the pressing wheel 14; the wire rod 16 is fixedly arranged above the second wire arranging part 19.

Specifically, the blanking device 100 further includes a third wire arranging portion 51, the third wire arranging portion 51 has a third wire arranging hole 511 for the ear ribbon wire to pass through, and the third wire arranging portion 51 is located downstream of the first wire passing wheel 15. Optionally, the third wire arranging part 51 is plate-shaped.

Specifically, as shown in fig. 1 and 4, the blanking device 100 further includes a fourth wire arranging portion 52, the fourth wire arranging portion 52 has a fourth wire arranging hole 521 through which the ear belt wire passes, and the fourth wire arranging portion 52 is located downstream of the third wire arranging portion 51. Optionally, the fourth wire arranging part 52 is plate-shaped.

Specifically, the blanking device 100 further includes a second wire passing wheel 53, the second wire passing wheel 53 is rotatably disposed, the second wire passing wheel 53 has a fourth wire groove 531, and the fourth wire groove 531 is arranged along the outer periphery of the second wire passing wheel 53; the second wire passing wheel 53 is located downstream of the fourth wire arranging part 52 and upstream of the first clamp 31.

In a specific implementation process, the ear belt line passing through the third wire casing 151 passes through the third wire arranging hole 511, then passes through the fourth wire arranging hole 521, and then is wound in the fourth wire casing 531, and the first clamp 31 clamps the ear belt line passing through the fourth wire casing 531.

The utility model also provides a gauze mask machine, this gauze mask machine includes foretell unloader 100.

Specifically, as shown in fig. 1 and 5, there are two blanking devices 100, the two blanking devices 100 are respectively located at two sides of a conveying path for conveying a mask sheet, and the two blanking devices 100 are used for simultaneously cutting and clamping two ear band sections of a mask. Fig. 5 is a schematic structural arrangement diagram of two blanking devices 100 in fig. 1 from another view angle.

Specifically, the fixing frames 60 of the two blanking devices 100 are provided with mounting holes 61, and at least part of the detection part of one blanking device 100 is fixedly mounted in the mounting hole 61 of the fixing frame 60 of the other blanking device 100.

From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects:

in the blanking device 100 of the present invention, the blanking device 100 includes a weight block 11 and a detection component, the weight block 11 has a first wire groove 111 for winding the ear wire, and the first wire groove 111 is arranged along the periphery of the weight block 11; by arranging the detection component, the transmitting part and the receiving part of the detection component are both arranged towards the balancing weight 11 positioned at the preset position, namely when the balancing weight 11 is positioned at the preset position, the transmitting part and the receiving part are both arranged opposite to the balancing weight 11, and the photoelectric signal transmitted by the transmitting part is reflected to the receiving part through the balancing weight 11 so that the receiving part receives the photoelectric signal; because the balancing weight 11 has a certain pressure on the ear belt line wound in the first line groove 111, the stretching degree of the ear belt line is influenced, and meanwhile, the ear belt lines with different stretching degrees also influence whether the balancing weight 11 is in the preset position, so that whether the stretching of the ear belt line is proper or not can be determined by determining whether the balancing weight 11 deviates from the preset position; when the counterweight block 11 is at the preset position, the lengths of the plurality of ear belt segments determined by the ear belt lines under the corresponding stretching degrees are the same; when the weight block 11 deviates, errors are generated in the lengths of the plurality of determined ear band sections, and if the errors are too large, the quality of the finally formed mask is affected. Therefore, by using the blanking device 100, errors among a plurality of finally determined ear belt segments can be greatly reduced, and the problem that a great error is easily generated in the ear belt line length fixing mode of the mask machine in the prior art is solved.

The utility model discloses a gauze mask machine includes foretell unloader 100, and this gauze mask machine has the same technological effect with unloader 100 at least.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A blanking device is characterized by comprising:

the counterweight block (11) is provided with a first wire groove (111) for winding an ear strap wire, and the first wire groove (111) is arranged along the periphery of the counterweight block (11);

the detection component is provided with a transmitting part for transmitting an optical signal and a receiving part for receiving the optical signal, wherein the transmitting part and the receiving part are both arranged towards the balancing weight (11) positioned at a preset position, so that whether the balancing weight (11) deviates from the preset position or not is determined according to whether the receiving part can receive the optical signal reflected by the balancing weight (11), and then the stretching degree of the ear belt line wound on the balancing weight (11) is determined.

2. The blanking device of claim 1, further comprising:

two sliding rods (20), wherein the two sliding rods (20) are arranged oppositely; the balancing weight (11) is provided with a sliding groove (112), and the sliding groove (112) is arranged along the periphery of the balancing weight (11); the balancing weight (11) is located between the two sliding rods (20), and at least part of each sliding rod (20) is arranged in the sliding groove (112) so that the balancing weight (11) can slide along the two sliding rods (20).

3. The blanking device of claim 1, further comprising:

the wire drawing wheel (13), the wire drawing wheel (13) is rotatably arranged;

a puck (14), the puck (14) having a second linear groove (141), the second linear groove (141) being disposed along a periphery of the puck (14); the pinch roller (14) is in contact with the wire drawing wheel (13) so that the wire drawing wheel (13) drives the pinch roller (14) to rotate and further the ear belt line moves;

the balancing weight (11) is located below the pressing wheel (14) so that an ear belt line passing through the second line groove (141) is wound in the first line groove (111).

4. The blanking device of claim 1, further comprising:

the first wire passing wheel (15) is rotatably arranged, the first wire passing wheel (15) is provided with a third wire groove (151), and the third wire groove (151) is arranged along the periphery of the first wire passing wheel (15);

the first wire passing wheel (15) is positioned above the balancing weight (11) so that an ear strap wire passing through the first wire groove (111) is wound in the third wire groove (151).

5. The blanking device of claim 1, further comprising:

a first clamp (31), said first clamp (31) being located downstream of said weight block (11), said first clamp (31) being for clamping said ear band wire;

a second gripper (32), the second gripper (32) having a gripping position and a fixed-length position relative to the first gripper (31), the second gripper (32) being reciprocally movable between the gripping position and the fixed-length position;

wherein the second gripper (32) is adapted to grip an end of the ear strap wire protruding from the first gripper (31) when the second gripper (32) is in the gripping position; when the second clamp (32) moves from the clamping position to the fixed-length position, the first clamp (31) releases the ear belt line, so that the second clamp (32) drives the ear belt line to move; when the second clamp (32) moves to the fixed-length position, the first clamp (31) clamps the ear belt line.

6. The blanking device of claim 5, further comprising:

the cutting component (33), the cutting component (33) is located on one side of the first clamp (31) close to the second clamp (32), so that after the second clamp (32) drives the end part of the ear belt line to move to the fixed-length position, the cutting component (33) is used for cutting out an ear belt section with a constant length.

7. The blanking device of claim 6, further comprising:

a first gripping member movably provided at one side of the first gripper (31) for gripping one end of the ear band segment gripped by the first gripper (31);

and the second clamping part is movably arranged at one side of the second clamp (32) and is used for clamping the other end of the ear belt section so as to respectively feed the two ends of the ear belt section to two welding positions on the corresponding mask sheets through the first clamping part and the second clamping part.

8. The blanking device of claim 2, further comprising:

the stop block (21) is sleeved on one of the two sliding rods (20), and the stop block (21) is located above the balancing weight (11) to limit the balancing weight (11).

9. A mask machine comprising a blanking device (100), characterized in that the blanking device (100) is a mask machine according to any one of claims 1 to 8.

10. Mask machine according to claim 9, characterized in that said blanking devices (100) are two, said two blanking devices (100) being located respectively on the two sides of the conveying path of the mask sheet.

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