阅读说明：本技术 口罩生产设备的控制方法 (Control method of mask production equipment ) 是由 李治蒙 郝玉亮 万义兵 黄贤 李宁 于 2020-06-04 设计创作，主要内容包括：本发明公开一种口罩生产设备的控制方法,包括如下步骤：步骤S1、控制前缓存机构预拉伸定量尺寸的口罩布料；步骤S2、基于所述定量尺寸的口罩布料到达焊耳带机构处,控制所述焊耳带机构对所述定量尺寸的口罩布料静止焊耳带,所述前缓存机构暂存后续来料；步骤S3、控制所述焊耳带机构出料,将所述定量尺寸的口罩布料暂存于所述后缓存机构。本发明技术方案能提高焊耳带工序的精度,继而提高口罩加工的良品率。(The invention discloses a control method of mask production equipment, which comprises the following steps: step S1, controlling a front cache mechanism to pre-stretch mask cloth with a certain size; step S2, controlling the ear welding belt mechanism to weld an ear belt for the mask cloth with the quantitative size in a static manner based on the fact that the mask cloth with the quantitative size arrives at the ear welding belt mechanism, and temporarily storing subsequent incoming materials by the front cache mechanism; and S3, controlling the ear strip welding mechanism to discharge, and temporarily storing the mask cloth with the quantitative size in the rear cache mechanism. The technical scheme of the invention can improve the precision of the ear strip welding process, and then improve the yield of mask processing.)

1. A control method of mask production equipment is characterized by comprising the following steps:

step S1, controlling a front cache mechanism to pre-stretch mask cloth with a certain size;

step S2, controlling the ear welding belt mechanism to weld an ear belt for the mask cloth with the quantitative size in a static manner based on the fact that the mask cloth with the quantitative size arrives at the ear welding belt mechanism, and temporarily storing subsequent incoming materials by the front cache mechanism;

and S3, controlling the ear strip welding mechanism to discharge, and temporarily storing the mask cloth with the quantitative size in the rear cache mechanism.

2. The method for controlling mask producing equipment according to claim 1, wherein the quantitative size of mask cloth prestretching is s, the time of mask cloth prestretching is t, and the speed of the mask conveyor is v, and s is v/t.

3. The method for controlling mask producing equipment according to claim 1, wherein the step S2 specifically includes:

step S21, controlling a left earphone to weld a static ear welding belt on the mask cloth with the quantitative size based on the fact that the mask cloth with the quantitative size reaches the left earphone, and temporarily storing subsequent incoming materials by the front cache mechanism;

and S22, controlling the right earphone to weld the static ear welding belt of the mask cloth with the quantitative size based on the fact that the mask cloth with the quantitative size reaches the right earphone, and temporarily storing subsequent incoming materials by the front cache mechanism.

4. The method for controlling mask producing equipment according to claim 3, wherein the step S21 specifically includes: and controlling an ear belt discharging mechanism to discharge materials and an angle adjusting mechanism to rotate and align the mask cloth with the quantitative size and a lower pressing mechanism of the welding ear belt to press down when the mask cloth with the quantitative size reaches the position of a left earphone.

5. The method for controlling mask producing equipment according to claim 1, further comprising, before step S1: the cloth feeding mechanism is controlled to discharge, the nose bridge strip penetrating mechanism is controlled to cut the nose bridge strips and push the nose bridge strips into the multi-layer cloth, and the knurling welding forming mechanism is controlled to print the cloth.

6. The method for controlling mask producing equipment according to claim 1, further comprising, after the step S3: the control folding mechanism folds the mask cloth with the quantitative size, the edge sealing mechanism seals edges of the mask cloth with the quantitative size, and the roll cutting mechanism rolls and cuts the mask cloth with the quantitative size.

7. The method for controlling mask producing apparatus according to any one of claims 1 to 6, further comprising, after the step S3: and controlling a detection feedback device to detect the position of a preset mark on the mask cloth with the quantitative size so as to judge whether the cloth is accurately positioned.

Technical Field

The invention relates to the field of mask production equipment, in particular to a control method of mask production equipment.

Background

At present, mask production facility mainly includes cloth feed mechanism, wear nose roof beam strip mechanism, annular knurl welding forming mechanism, welds ear area mechanism, hobbing mechanism, unloading mechanism etc. the speed of conveyer belt is general at 40-60Pcs/Min, wherein, welds the ear and drives the in-process that often removes and adopt the mode of chasing after the shearing mode to accomplish, however, along with the promotion of cloth conveying speed, often can't guarantee the precision of welding the ear area under the mode of chasing after the shearing, has influenced the yields of equipment then.

Disclosure of Invention

The invention mainly aims to provide a control method of mask production equipment, and aims to improve the precision of an ear strip welding process and further improve the yield of the equipment.

In order to achieve the purpose, the control method of the mask production equipment provided by the invention comprises the following steps:

step S1, controlling a front cache mechanism to pre-stretch mask cloth with a certain size;

step S2, controlling the ear welding belt mechanism to weld an ear belt for the mask cloth with the quantitative size in a static manner based on the fact that the mask cloth with the quantitative size arrives at the ear welding belt mechanism, and temporarily storing subsequent incoming materials by the front cache mechanism;

and S3, controlling the ear strip welding mechanism to discharge, and temporarily storing the mask cloth with the quantitative size in the rear cache mechanism.

Optionally, the quantitative size of the mask cloth pre-stretching is s, the time of the mask cloth pre-stretching is t, the speed of the mask conveyer belt is v, and then s is v/t.

Optionally, the step S2 specifically includes:

step S21, controlling a left earphone to weld a static ear welding belt on the mask cloth with the quantitative size based on the fact that the mask cloth with the quantitative size reaches the left earphone, and temporarily storing subsequent incoming materials by the front cache mechanism;

and S22, controlling the right earphone to weld the static ear welding belt of the mask cloth with the quantitative size based on the fact that the mask cloth with the quantitative size reaches the right earphone, and temporarily storing subsequent incoming materials by the front cache mechanism.

Optionally, the step S21 specifically includes: and controlling an ear belt discharging mechanism to discharge materials and an angle adjusting mechanism to rotate and align the mask cloth with the quantitative size and a lower pressing mechanism of the welding ear belt to press down when the mask cloth with the quantitative size reaches the position of a left earphone.

Optionally, the step S1 is preceded by sequentially: the cloth feeding mechanism is controlled to discharge, the nose bridge strip penetrating mechanism is controlled to cut the nose bridge strips and push the nose bridge strips into the multi-layer cloth, and the knurling welding forming mechanism is controlled to print the cloth.

Optionally, after the step S3, the method further includes: the control folding mechanism folds the mask cloth with the quantitative size, the edge sealing mechanism seals edges of the mask cloth with the quantitative size, and the roll cutting mechanism rolls and cuts the mask cloth with the quantitative size.

Optionally, after the step S3, the method further includes: and controlling a detection feedback device to detect the position of a preset mark on the mask cloth with the quantitative size so as to judge whether the cloth is accurately positioned.

According to the technical scheme, in the production process of the mask production equipment, the mask cloth is pre-stretched by the aid of the cache mechanism, and punching is delayed by the ear belt welding mechanism, so that ear belts are welded in a static state of the mask cloth, and the situations of deviation of the ear belts and the like are effectively avoided; specifically, when the ear belt is statically welded, the subsequent incoming materials are temporarily stored in the front caching mechanism, and after the incoming materials are punched out, the incoming materials are quickly discharged and temporarily stored in the rear caching mechanism, so that the interference of a static ear belt welding process on the normal conveying of the cloth of the mask is eliminated.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings 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 flow chart of a control method of a mask production apparatus according to the present invention;

fig. 2 is a schematic structural view of mask manufacturing equipment according to an embodiment of the present invention;

FIG. 3 is a schematic structural view of the cloth feeding mechanism in FIG. 2;

FIG. 4 is a schematic structural view of the nose bar penetrating mechanism and the knurl welding and forming mechanism in FIG. 2;

FIG. 5 is a schematic structural diagram of the front buffer mechanism in FIG. 2;

FIG. 6 is a schematic structural view of the ear strap welding mechanism of FIG. 2;

FIG. 7 is a schematic structural diagram of the left lug welding machine in FIG. 6;

FIG. 8 is a schematic structural diagram of the half-folding mechanism and the rear buffer mechanism in FIG. 2;

FIG. 9 is a schematic structural diagram of the edge sealing mechanism, the hobbing mechanism and the blanking mechanism in FIG. 2;

FIG. 10 is a schematic structural view of the edge sealing mechanism of FIG. 9;

fig. 11 is a schematic view of the cloth structure of the mask of fig. 2.

The reference numbers illustrate:

1. a cloth supply mechanism; 11. a cloth holding device; 12. an active discharging device; 13. a tension buffer control device; 2. a nose bar penetrating mechanism; 21. a nose bridge strip discharging device; 22. a nose bridge strip pushing device; 23. nose bridge strip cutting means; 3. a knurling and welding forming mechanism; 31. an ultrasonic welding device; 32. a printing device; 4. an ear band welding mechanism; 41. a front caching mechanism; 411. a first roller; 412. a second roller; 413. a third roller; 414. a support frame; 414a, a vertical rod; 414b, horizontal bar; 415. a sliding structure; 416. a connecting rod; 42. a back buffer mechanism; 43. a left lug welding machine; 431. an ear belt material placing structure; 432 welding a lower pressing structure of the ear band; 433. an angle adjustment structure; 44. right welding a lug machine; 45. a welding lug belt feeding device; 46. a lug welding belt pulling device; 5. a folding mechanism; 6. a sealing mechanism; 61. an edge sealing following device; 62. a sealing device; 7. a hobbing mechanism; 8. a blanking mechanism; 81. a waste collection device; 9. distributing a mask; 91. preset identification

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment 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, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The invention provides a control method of mask production equipment.

The mask production equipment of the invention is not limited to full-automatic mask production equipment, semi-automatic mask production equipment and the like, but can be full-automatic folding mask production equipment or full-automatic plane mask production equipment in the full-automatic mask production equipment. The invention takes full-automatic folding mask production equipment as an example, and the patent technical scheme is explained in detail as follows:

referring to fig. 2, the full-automatic foldable mask production equipment of this embodiment sequentially includes a cloth feeding mechanism 1, a nose beam strip penetrating mechanism, a knurl welding and forming mechanism 3, an ear strip welding mechanism 4, a folding mechanism 5, a banding mechanism 6, a hobbing mechanism 7 and a blanking mechanism 8 along a conveying direction, and its general working flow is as follows: after the multilayer cloth is discharged from the cloth supply mechanism 1, the procedures of nose bridge penetration, knurling, ear welding, folding, edge sealing, hobbing and the like are sequentially carried out, and finally the machined mask is detached at the blanking mechanism 8.

Without loss of generality, referring to fig. 3, the cloth feeding mechanism 1 includes a cloth clamping device 11, an active discharging device 12 and a tension buffer control device 13, and the tension buffer control device 13 includes an inductor, and the inductor controls the active discharging device 12 to start or stop discharging according to the tension of the cloth. Referring to fig. 4, in this embodiment, the nose bridge strip penetrating machine 2 includes a nose bridge strip feeding device 21, a nose bridge strip cutting device 23, and a nose bridge strip pushing device 22, and the nose bridge strip feeding and cutting are mechanically synchronized, so that the lengths of the nose bridge strips cut at each section are the same; the nose bridge strip pushing device 22 pushes the cut nose bridge strip into the multi-layer cloth through a cam mechanism or other driving structures. In addition, in this embodiment, the knurl welding forming mechanism 3 includes an ultrasonic welding device 31 and a printing device 32, the printing device 32 is added with an identification mark, and the position is automatically corrected by software, so as to improve the precision of the equipment. Referring to fig. 8, in addition, the folding mechanism 5 can control the position of the folded material to be discharged by adjusting the handle, so as to ensure the position requirement of the subsequent process; referring to fig. 9 and 10, the edge sealing mechanism 6 includes an edge sealing following device 61 and an edge sealing device 62, the edge sealing device 62 enables the cloth to be conveyed without stopping in the edge sealing process through the edge sealing following device 61, so as to improve the efficiency of the device, for example, but not limited to, the edge sealing mechanism 6 is provided with at least two groups to improve the edge sealing efficiency; a weighing sensor is arranged on the hobbing mechanism 7 to accurately control hobbing force; the waste collecting device 81 of the blanking mechanism 8 can effectively separate finished products and waste.

It should be noted that, in this embodiment, in order to solve the problem of poor accuracy of the ear welding band of the conventional device, the fully automatic folding mask production device is specially modified in the following technical ways:

in the embodiment of the present invention, referring to fig. 4 to 8, the mask producing apparatus further includes a front buffer mechanism 41 and a rear buffer mechanism 42 respectively disposed on the front side and the rear side of the ear-welding belt mechanism 4, each of the front buffer mechanism 41 and the rear buffer mechanism 42 includes a roller structure and a servo motor for driving the roller structure, the roller structure sequentially includes a first roller 411, a second roller 412 and a third roller 413 along the conveying direction, and the second roller 412 is disposed on the upper side or the lower side of the first roller 411 and the third roller 413.

In the embodiment of the present invention, referring to fig. 1, the control method of the mask production apparatus includes the steps of:

step S1, controlling the front buffer mechanism 41 to pre-stretch the mask cloth 9 with a certain size;

it is easily understood that step S1 is preceded by the following steps: the cloth feeding mechanism 1 is controlled to discharge, the nose bridge penetrating machine 2 is controlled to cut the nose bridge and push the nose bridge into the multi-layer cloth, and the knurling welding forming mechanism 3 is controlled to print the cloth. Namely, the processes of discharging, nose penetrating beam strips and printing of multilayer cloth.

Step S2, controlling the ear welding belt mechanism 4 to weld the ear belt on the mask cloth 9 with the fixed size in a static manner based on the fact that the mask cloth 9 with the fixed size arrives at the ear welding belt mechanism 4, and temporarily storing the subsequent incoming materials by the front cache mechanism 41;

and step S3, controlling the ear welding belt mechanism 4 to discharge, and temporarily storing the mask cloth 9 with a fixed size in the rear buffer mechanism 42.

In this embodiment, step S3 is followed by: the folding mechanism 5 is controlled to fold the mask cloth 9 with a certain size in half, the edge sealing mechanism 6 is controlled to seal the mask cloth 9 with a certain size, and the hobbing mechanism 7 is controlled to perform hobbing on the mask cloth 9 with a certain size. Namely folding, edge sealing and rolling cutting processes of the mask cloth 9.

It can be understood that, with such an arrangement, in the working process of the mask production equipment, the caching mechanism makes the mask cloth 9 pre-stretch a certain size by the driving of the roller and the servo motor, and then the servo motor drives the mask cloth to the corresponding position of the ear welding mechanism 4 to perform the ear welding procedure which is static, in other words, the method of reserving firstly and then delaying is adopted to realize the stillness of the mask cloth in the ear welding procedure, at this moment, the subsequent supplied materials are temporarily stored in the front caching mechanism 41, and after the ear welding action is completed, the discharged materials are rapidly and temporarily stored in the rear caching mechanism 42. It will be readily appreciated that the front buffer mechanism 41 and the rear buffer mechanism 42 each comprise rollers which undulate up and down relative to each other to facilitate the temporary storage of the cloth. In this embodiment, the quantitative size of the mask cloth 9 prestretching is s, the time of prestretching the mask cloth 9 is t, and the speed of the mask conveyor is v, so that s is v/t.

In this embodiment, referring to fig. 5, each of the front buffer mechanism 41 and the rear buffer mechanism 42 further includes a support frame 414, and the support frame 414 includes a vertical rod 414a erected on the bottom box of the mask production equipment, and a horizontal rod 414b crossing the upper end of the vertical rod 414 a; the second roller 412 is installed on the vertical rod 414a, and the first roller 411 and the third roller 413 are installed on both ends of the horizontal rod 414b and maintained at the same height. It is easy to understand that the first roller 411 and the third roller 413 are disposed at the same height as the plane of the conveyor belt, so as to effectively ensure the smoothness of the cloth conveying. It should be noted that the design is not limited thereto, and in other embodiments, the first roller 411 and the third roller 413 may be disposed at different heights.

In this embodiment, the second roller 412 is connected to the vertical rod 414a by a sliding structure 415 extending in a vertical direction. It can be understood that the lug belt pulling device using the sliding structure 415 can flexibly adjust the height of the second roller 412, so as to adjust the tightness of the cloth passing through the roller structures and finely adjust the conveying speed of the cloth. Specifically, in this embodiment, the lug strip pulling device of the sliding structure 415 includes a sliding rail laid on the vertical rod 414a along the vertical direction, and a sliding block fixed at one end of the second roller 412 close to the vertical rod 414a, and the sliding block is slidably assembled with the sliding rail; it should be noted that the design is not limited to this, and in other embodiments, the sliding structure 415 may be configured in other forms. Without loss of generality, the front buffer mechanism 41 and the rear buffer mechanism 42 each further include a connecting rod 416 folding mechanism disposed opposite to the horizontal rod 414b, and both ends of the connecting rod 416 folding mechanism are connected to the ends of the first roller 411 and the third roller 413 away from the horizontal rod 414 b. It can be understood that, by such an arrangement, the reliability of the assembly of the first roller 411 and the third roller 413 is advantageously ensured, so as to ensure the stable operation of the mask production equipment.

According to the technical scheme, in the production process of the mask production equipment, the mask cloth 9 is pre-stretched by the aid of the cache mechanism, and punching is delayed by the ear belt welding mechanism 4, so that ear belts are welded in a static state of the mask cloth 9, and the situations of ear belt welding deviation and the like are effectively avoided; specifically, when the ear belt is statically welded, the subsequent incoming material is temporarily stored in the front buffer mechanism 41, and after the incoming material is punched out, the incoming material is rapidly discharged and temporarily stored in the rear buffer mechanism 42, so that the interference of the static ear belt welding process on the normal conveying of the mask cloth 9 is eliminated, in other words, the technical scheme of the invention effectively improves the processing precision of the equipment on the premise of not influencing the production efficiency of the mask production equipment.

Alternatively, referring to fig. 6, in the present embodiment, the ear welding belt mechanism 4 includes two left ear welding belt machines 43 and two right ear welding belt machines arranged in sequence along the conveying direction. Step S2 specifically includes:

step S21, controlling the left earphone 43 to weld an ear belt to the mask cloth 9 with the quantitative size in a static manner based on the fact that the mask cloth 9 with the quantitative size arrives at the left earphone 43, and temporarily storing subsequent incoming materials by the front cache mechanism 41;

step S22, controlling the right headphone to weld the ear strap on the mask cloth 9 of the fixed size in a stationary manner based on the fact that the mask cloth 9 of the fixed size arrives at the right headphone, and temporarily storing the subsequent incoming material by the front buffer mechanism 41.

It can be understood that so set up, can effectively improve the efficiency of welding the ear strip process, improve the output of gauze mask production facility unit interval then. In other embodiments, the process of punching the right ear band may be performed first, and then the process of punching the left ear band may be performed.

Optionally, referring to fig. 7, in the present embodiment, the left ear belt welding machine 43 and the right ear belt welding machine respectively include, from top to bottom, an ear belt emptying structure 431, an ear belt welding pressing structure 432, an angle adjusting structure 433, and a rotary encoder structure. Step S21 specifically includes: the mask cloth 9 based on the quantitative size reaches the left earphone 43, the ear band discharging mechanism 431 is controlled to discharge, the angle adjusting mechanism 434 is controlled to rotate to align the mask cloth 9 of the quantitative size, and the welding ear band pressing mechanism 432 is controlled to press down.

It can be understood that the above is the common welding lug belt machine configuration of prior art, simple structure, job stabilization, are favorable to reducing equipment cost when guaranteeing equipment stability. It should be noted that, the present design is not limited to this, and in other embodiments, the strap welding machine may also be specifically configured to other configurations and take corresponding processing steps.

Optionally, referring to fig. 11, the mask production equipment further includes a detection feedback device, and the detection feedback device is configured to detect position information corresponding to the preset mark 91 on the cloth. Step S3 is followed by: the position of the preset mark 91 on the mask cloth 9 with the quantitative size is detected by controlling the detection feedback device so as to judge whether the cloth is positioned accurately.

It can be understood that so set up, be favorable to detecting often to whether off normal of gauze mask cloth 9 to in time discover and adjust when equipment processing dislocation, guarantee the normal production of equipment as far as possible. For example, but not limited to, the preset marks 91 are a plurality of mark holes penetrating through the mask cloth 9, and the detection feedback device is preferably provided at the hobbing mechanism 7. Of course, in other embodiments, the preset mark may also specifically adopt other design forms, and the detection feedback device may also be specifically disposed at other structures of the mask production equipment, and the design is not limited thereto.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.