CN112192848B

CN112192848B - Full-electric flat mask ear wire welding equipment

Info

Publication number: CN112192848B
Application number: CN202010944367.4A
Authority: CN
Inventors: 廖菲; 胡军连; 丁茂林; 庾森浪
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-10
Filing date: 2020-09-10
Publication date: 2022-07-22
Anticipated expiration: 2040-09-10
Also published as: CN112192848A

Abstract

The invention discloses a full-electric plane mask ear wire welding device which comprises a rack, an ear wire welding module, an ear wire folding module and an ear wire pressing module, wherein the ear wire folding module is connected with the rack; the ear wire welding module comprises a mask conveying device, an ear wire clamping and conveying device and an ear wire welding device; the ear wire folding modules are arranged in two groups, and the two groups of ear wire folding modules are respectively used for folding the ear wires hung on the two sides of the mask body onto the mask body; each group of ear line folding modules comprises a baffle and a guide piece; the ear wire pressing module is arranged at a downstream station of the ear wire turnover module and comprises a pressing block and a pressing driving mechanism. The all-electric flat mask ear line welding equipment can turn over the ear lines hung on two sides of the mask body which completes the ear line welding process onto the mask body without the aid of corresponding turning power mechanisms, so that the manufacturing cost is saved, and the production efficiency of the mask is improved.

Description

Full-electric flat mask ear wire welding equipment

Technical Field

The invention relates to mask production equipment, in particular to full-electric plane mask ear line welding equipment.

Background

The mask is a sanitary article, is generally worn at the mouth and nose part and used for filtering air entering the mouth and nose so as to achieve the purpose of preventing harmful gas, smell, virus and spray from entering and exiting the mouth and nose of a wearer, is mainly made of non-woven fabrics and gauze, has a certain filtering effect on the air entering the lung, and has a very good effect when being worn in respiratory infectious diseases and working in environments polluted by dust and the like.

The existing mask generally adopts mask production equipment to carry out automatic production, the mask production equipment manufactures various masks with certain filtering performance through processes of hot pressing, folding forming, ultrasonic welding, waste material cutting, ear line, nose bridge strip welding and the like on multiple layers of non-woven fabrics, the mask equipment is not a single machine, and the mask equipment needs the matching of multiple machines to complete various different processes. For example, the utility model with the publication number of CN209121339U discloses a "mask production line", and for example, the invention patent with the publication number of CN108433215A discloses a "full-automatic mask production line".

In gauze mask production technology, the welding process of gauze mask body and ear wire is the primary link of restriction gauze mask production speed, specifically, in the present gauze mask production facility, carry the gauze mask body to ear wire welding station in proper order through gauze mask conveyor, utilize ear wire conveyor to carry the ear wire simultaneously, and tailor the ear wire, hold conveyor by the line and shift to ear wire welding station with the ear wire that cuts to ear wire welding station after that, weld the ear wire to the gauze mask body by ear wire welding set at last. The wire clamping and conveying device is in charge of transferring the to-be-welded lug wires and is a key action in the lug wire welding process, the conventional wire clamping and conveying device usually adopts a reciprocating type conveying action, and the return stroke of the wire clamping and conveying device is an idle stroke, so that the improvement of the production efficiency is restricted.

In addition, when ear wire welding set welded the ear wire to the gauze mask body, the ear wire hung in the both sides of gauze mask, consequently need set up in addition that the mechanism turns over the ear wire of hanging of gauze mask body both sides to the gauze mask body on, the rethread press device presses the ear wire afterwards for the ear wire of gauze mask body both sides is kept flat on the gauze mask body. However, this kind of mode needs to set up two sets of mechanisms again in ear wire welding set's low reaches station department, and a set of ear wire that is used for hanging gauze mask body both sides turns over the gauze mask body on, and another group is then to being located the ear wire on the gauze mask body and pressing, so not only consuming time and wasting power, but also increased the manufacturing cost of gauze mask production facility. In addition, because set up two sets of mechanisms more on the gauze mask transfer chain, consequently can lead to the transfer chain extension of gauze mask, can reduce the production efficiency of gauze mask like this.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides the full-electric plane mask ear line welding equipment which can turn over the ear lines hung on two sides of the mask body onto the mask body in the process of conveying the mask body after the ear line welding process, and does not need to be additionally provided with corresponding turning power mechanisms, so that the manufacturing cost is saved, and the production efficiency of the mask is improved.

The technical scheme for solving the technical problems is as follows:

an all-electric flat mask ear wire welding device comprises a frame, an ear wire welding module arranged on the frame, an ear wire turning module for turning over the ear wires hung on two sides of a mask body after the ear wire welding process to the mask body, and an ear wire pressing module for pressing the mask body after the ear wire turning module is turned over, wherein,

the ear wire welding module comprises a mask conveying device for conveying the mask body, an ear wire conveying device for conveying ear wires, an ear wire clamping and conveying device for clamping and conveying the ear wires in the ear wire conveying device to an ear wire welding station and an ear wire welding device for welding the ear wires at the ear wire welding station to the mask body;

the ear wire folding modules are arranged in two groups, and the two groups of ear wire folding modules are respectively used for folding the ear wires hung on the two sides of the mask body onto the mask body; each group of ear line turnover modules comprises a baffle plate and a guide piece connected with the baffle plate, wherein,

the baffle is arranged on the rack and is positioned opposite to the lug welding station; the baffle is provided with a wire blocking part and a guide part connected with the wire blocking part; the ear wire conveying device drives the ear wire to penetrate through the lower part of the baffle; when the ear wire clamping and conveying device conveys two ends of an ear wire to an ear wire welding station, a part of the ear wire in the middle of the ear wire is blocked by the wire blocking part of the baffle; after the ear wire is welded on the mask body by the ear wire welding device, the guide part on the baffle plate is used for guiding part of the ear wire blocked by the wire blocking part to be separated from the wire blocking part along with the movement of the mask body driven by the mask conveying device;

one end of the guide piece is connected with the line blocking part, and the other end of the guide piece extends to the upper part of the mask body towards the conveying direction of the mask body; in the process of extending to the upper part of the mask body, the guide pieces in the ear line folding modules positioned at two sides of the mask body are bent and transited along the inner side of the mask body;

the ear wire pressing module is arranged at a downstream station of the ear wire turnover module and comprises a support arranged on the frame, a pressing block arranged on the support and a pressing driving mechanism used for driving the pressing block to move vertically.

Preferably, the guide member is a guide rod, one end of the guide rod is connected with the stop line part of the baffle, and after the other end of the guide rod horizontally extends along the conveying direction of the mask conveying device, the guide rod extends upwards and towards the inner side of the mask body at the same time; when the guide is located above the mask body, the guide rod horizontally extends along the conveying direction of the mask body.

Preferably, the baffle comprises a horizontal section and a vertical section, wherein one end of the horizontal section is connected with the rack, and the other end of the horizontal section is connected with the vertical section; the vertical section forms the wire blocking part, and arc surfaces are arranged at two ends of the vertical section and form the guide part.

Preferably, a guide portion is further disposed at an end portion of the vertical section, which is in contact with the guide rod, the guide portion horizontally extends along a conveying direction of the mask body, and the guide rod is connected to the guide portion.

Preferably, the ear wire folding module further comprises an arc-shaped guide plate, the arc-shaped guide plate is located below a part of the guide rod extending upwards in the guide rod, one end of the arc-shaped guide plate is connected with the support, and the other end of the arc-shaped guide plate extends upwards towards the conveying direction of the mask body.

Preferably, the pressing driving mechanism includes a pressing motor and a first eccentric wheel mechanism, wherein the first eccentric wheel mechanism includes a first eccentric wheel seat arranged on a bracket and a first eccentric wheel arranged on the first eccentric wheel seat, the first eccentric wheel is mounted on the first eccentric wheel seat, the pressing motor is mounted on the bracket, and a main shaft of the pressing motor is connected with the first eccentric wheel; the first eccentric wheel is connected with the pressing block through a first connecting piece; the first connecting piece comprises a first connecting shaft and a first connecting seat, wherein the lower end of the first connecting seat is connected with the pressing block, and the upper end of the first connecting seat is provided with a first connecting hole matched with the first connecting shaft; one end of the first connecting shaft is matched with the first connecting hole, and the other end of the first connecting shaft is connected with the first eccentric wheel.

Preferably, press actuating mechanism still including pressing guiding mechanism, press guiding mechanism and be two sets of, two sets of guiding mechanism that press are located respectively the both sides of support, every group presses guiding mechanism including setting up uide bushing on the support and setting up and be in on the uide bushing with uide bushing complex guiding axle, wherein, the vertical setting of guiding axle, this guiding axle lower extreme with press the cooperation of briquetting.

Preferably, the ear wire clamping and conveying device comprises a clamping module, a first vertical driving mechanism for driving the clamping module to do vertical motion, and a rotary driving mechanism for driving the clamping module to do rotary motion; the clamping modules are divided into two groups, and the two groups of clamping modules are respectively driven by two groups of first vertical driving mechanisms; each group of first vertical driving mechanisms comprises a second eccentric wheel mechanism arranged on the rack and a first eccentric driving mechanism used for driving the second eccentric wheel mechanism to act, wherein the second eccentric wheel mechanism comprises a second eccentric wheel seat and a second eccentric wheel arranged on the second eccentric wheel seat, and the second eccentric wheel is connected with the clamping module through a second connecting piece; the second connecting piece comprises a second connecting shaft and a second connecting seat, wherein the lower end of the second connecting seat is connected with the clamping module, and the upper end of the second connecting seat is provided with a second connecting hole matched with the second connecting shaft; one end of the second connecting shaft is matched with the second connecting hole, and the other end of the second connecting shaft is connected with the second eccentric wheel.

Preferably, the lug wire welding device comprises an ultrasonic welding head arranged on the frame, a welding head and a second vertical driving mechanism for driving the pressing head to move vertically; the welding device comprises a plurality of welding heads, a welding head and a welding head frame, wherein the plurality of welding heads are connected through a connecting frame; the second vertical driving mechanism comprises a third eccentric wheel mechanism arranged on the rack and a second eccentric driving mechanism used for driving the third eccentric wheel mechanism to act, wherein the third eccentric wheel mechanism comprises a third eccentric wheel seat and a third eccentric wheel arranged on the third eccentric wheel seat, and the third eccentric wheel is connected with the connecting rack through a third connecting piece; the third connecting piece comprises a third connecting shaft and a third connecting seat, wherein the lower end of the third connecting seat is connected with the connecting frame, and the upper end of the third connecting seat is provided with a third connecting hole matched with the third connecting shaft; one end of the third connecting shaft is matched with the third connecting hole, and the other end of the third connecting shaft is connected with the third eccentric wheel.

Preferably, the first eccentric driving mechanism and the second eccentric driving mechanism are in the same group and comprise eccentric motors and eccentric transmission mechanisms, wherein each eccentric transmission mechanism comprises a first gear and a third gear which are coaxially arranged with a first eccentric wheel in each of the two groups of first vertical driving mechanisms, and a second gear which is coaxially arranged with a second eccentric wheel in each of the second vertical driving mechanisms, wherein the first gear and the third gear have the same specification, and the diameter of the second gear is smaller than that of the first gear and that of the third gear; the first gear and the third gear are respectively positioned at two sides of the second gear and are respectively meshed with the second gear; the eccentric motor is arranged on the rack, and a main shaft of the eccentric motor is connected with a rotating shaft of the second gear through a gear transmission mechanism; the gear transmission mechanism comprises a pinion arranged on a main shaft of the eccentric motor and a pinion arranged on the rotating shaft, and the bull gear is meshed with the pinion.

Compared with the prior art, the invention has the following beneficial effects:

1. according to the fully-electric plane mask ear line welding equipment, an additional folding power mechanism is not arranged, ear lines hung on two sides of a mask body synchronously move along with the mask body through the baffle and the guide piece, the ear lines sleeved on the guide piece are automatically folded towards the upper part of the mask body under the guide of the guide piece, and when the ear lines are separated from the guide piece, the ear lines fall onto the mask body under the self gravity of the ear lines, so that the ear lines on the two sides of the mask body are folded onto the mask body. Therefore, a turnover device with power drive is not needed to be arranged between the ear wire welding module and the ear wire pressing module, and the manufacturing cost is reduced.

2. According to the all-electric flat mask ear wire welding equipment, the ear wires hung on two sides of the mask body after the ear wire welding are completed are turned over on the mask body through the guide piece, and a turning device with power drive is not required to be arranged between the ear wire welding module and the ear wire pressing module, so that the debugging difficulty of the all-electric flat mask ear wire welding equipment can be reduced.

3. According to the fully-electric plane mask ear line welding equipment, the ear lines hung on two sides of the mask body after the ear line welding is completed are turned over to the mask body through the guide piece, and a turning device with power driving is not required to be arranged between the ear line welding module and the ear line pressing module, so that the time for the mask body to complete the ear line turning over action in the turning device can be saved, and the production efficiency of the mask is improved.

Drawings

Fig. 1 is a schematic perspective view of an ear line welding device for a fully-electric flat mask according to the present invention.

Fig. 2-5 are schematic structural views of the ear line pressing module, wherein fig. 2 and 3 are schematic perspective structural views from two different viewing angles; fig. 4 and 5 are schematic perspective views of two different viewing angles.

Fig. 6 is a schematic diagram of the body structure of the ear wire welding module.

Fig. 7 to 10 are schematic structural views of the first vertical driving mechanism and the second vertical driving mechanism, wherein fig. 7 is a schematic perspective structural view, and fig. 8 to 10 are exploded views from three different viewing angles.

Fig. 11-13 are schematic structural views of the ear wire folding module, where fig. 11 is a schematic perspective structural view, fig. 12 is a top view, and fig. 13 is a side view.

Fig. 14 and 15 are perspective views of the baffle and the guide rod from two different perspectives.

Detailed Description

The present invention will be described in further detail with reference to examples and drawings, but the present invention is not limited thereto.

Referring to fig. 1 to 15, the fully-electric flat mask ear line welding device of the present invention includes a frame, an ear line welding module 1 disposed on the frame, an ear line folding module 2 for folding over the ear lines hung on both sides of the mask body after the ear line welding process is completed onto the mask body, and an ear line pressing module 3 for pressing the mask body after the ear line folding module 2 is folded.

Referring to fig. 1 to 15, the ear wire welding module 1 includes a mask conveying device for conveying a mask body, an ear wire conveying device for conveying an ear wire, an ear wire clamping and conveying device for clamping and conveying the ear wire in the ear wire conveying device to an ear wire welding station, and an ear wire welding device for welding the ear wire at the ear wire welding station to the mask body.

Referring to fig. 1 to 15, the ear wire folding modules 2 are divided into two groups, and the two groups of ear wire folding modules 2 are respectively used for folding the ear wires hung on the two sides of the mask body onto the mask body; each group of ear line folding modules 2 comprises a baffle 2-1 and a guide part 2-2 connected with the baffle 2-1.

Referring to fig. 1-15, the baffle 2-1 is mounted on the frame and is disposed opposite to the ear welding station; the baffle 2-1 is provided with a wire blocking part and a guide part connected with the wire blocking part; the ear wire conveying device drives the ear wire to penetrate through the lower part of the baffle 2-1; when the ear wire clamping and conveying device conveys two ends of an ear wire to an ear wire welding station, a part of the ear wire in the middle of the ear wire is blocked by the wire blocking part of the baffle 2-1; after the ear wires are welded on the mask body by the ear wire welding device, the guide parts on the baffle plates 2-1 are used for guiding part of the ear wires blocked by the wire blocking parts to be separated from the wire blocking parts along with the movement of the mask body driven by the mask conveying device;

the baffle 2-1 in the embodiment comprises a horizontal section 2-11 and a vertical section 2-12, wherein one end of the horizontal section 2-11 is connected with the rack, and the other end of the horizontal section 2-11 is connected with the vertical section 2-12; the vertical section 2-12 forms the line blocking part, two ends of the vertical section 2-12 are provided with arc surfaces 2-14, the arc surfaces 2-14 form the guide part, in addition, the end part of the vertical section 2-12, which is contacted with the guide part 2-2, is also provided with a guide part 2-13, the guide part 2-13 extends horizontally, and the guide rod is connected with the guide part 2-13.

Referring to fig. 1 to 15, one end of the guide 2-2 is connected to the thread blocking portion, and the other end extends toward the conveying direction of the mask body and extends above the mask body; in the process of extending to the upper part of the mask body, the guide pieces 2-2 in the ear line turnover modules 2 positioned at two sides of the mask body are bent inwards along the vertical bisector of the mask body in the width direction for transition;

in this embodiment, the guide member 2-2 is a guide rod, one end of the guide rod is connected to the line blocking portion of the baffle 2-1, and after the other end of the guide rod horizontally extends along the conveying direction of the mask conveying device, the guide rod extends upward and simultaneously to the perpendicular bisector of the width direction of the mask body; when the guide 2-2 is positioned above the mask body, the guide rod horizontally extends along the conveying direction of the mask body.

Referring to fig. 1 to 15, the ear wire pressing module 3 is disposed at a downstream station of the ear wire folding module 2, and includes a support, a pressing block 3-1 disposed on the support, and a pressing driving mechanism for driving the pressing block to move vertically, wherein the pressing driving mechanism includes a pressing motor 3-2 and a first eccentric wheel mechanism 3-3, the first eccentric wheel mechanism 3-3 includes a first eccentric wheel seat disposed on the support, and a first eccentric wheel disposed on the first eccentric wheel seat, the first eccentric wheel is mounted on the first eccentric wheel seat, the pressing motor 3-2 is mounted on the support, and a main shaft of the pressing motor 3-2 is connected to the first eccentric wheel; the first eccentric wheel is connected with the pressing block 3-1 through a first connecting piece 3-6; the first connecting piece 3-6 comprises a first connecting shaft and a first connecting seat, wherein the lower end of the first connecting seat is connected with the pressing block 3-1, and the upper end of the first connecting seat is provided with a first connecting hole matched with the first connecting shaft; one end of the first connecting shaft is matched with the first connecting hole, and the other end of the first connecting shaft is connected with the first eccentric wheel. The first eccentric wheel is driven to rotate through the pressing motor 3-2, so that the first connecting seat and the pressing block 3-1 connected with the first connecting seat are driven to vertically move through the first connecting shaft, the mask body which completes the ear line folding action is pressed, and the ear line on the mask body is kept in a state of being attached to the mask body.

In addition, the pressing block 3-1 is provided with two pressing parts 3-11, and the two pressing parts 3-11 are respectively positioned above welding points at two sides of the mask body. The ear line pressing station is further provided with two supporting tables 3-4, and the two supporting tables 3-4 correspond to the two pressing portions 3-11 of the pressing block 3-1 one by one. After the mask body which finishes the ear line folding action moves to the ear line pressing station, the mask body is supported on the supporting table 3-4, and the pressing block 3-1 is driven by the pressing driving mechanism to vertically move and be matched with the supporting table 3-4, so that the ear line is attached to the mask body.

Referring to fig. 1-15, the pressing driving mechanism further includes two groups of pressing guide mechanisms 3-5, the two groups of pressing guide mechanisms 3-5 are respectively located at two sides of the support, each group of pressing guide mechanisms 3-5 includes a guide sleeve disposed on the support and a guide shaft disposed on the guide sleeve and engaged with the guide sleeve, wherein the guide shaft is vertically disposed, and a lower end of the guide shaft is engaged with the pressing block 3-1. The vertical movement of the pressing block 3-1 is guided by arranging the pressing guide mechanism 3-5, so that the pressing precision is improved.

Referring to fig. 1-15, the ear wire folding module 2 further includes an arc-shaped guide plate 2-3, the arc-shaped guide plate 2-3 is located below a part of the guide rod extending upward in the guide rod, one end of the arc-shaped guide plate 2-3 is connected to the frame, and the other end extends upward toward the conveying direction of the mask body. Through setting up arc deflector 2-3 can the ear wire along with gauze mask body simultaneous movement's in-process supports the ear wire to this prevents that the ear wire from because of its self gravity landing downwards when upward movement, thereby guarantees gauze mask body and ear wire simultaneous movement.

Referring to fig. 1-15, the ear wire clamping and conveying device comprises a clamping module, a first vertical driving mechanism 4 for driving the clamping module to do vertical motion, and a rotary driving mechanism for driving the clamping module to do rotary motion; the clamping modules are divided into two groups, and the two groups of clamping modules are driven by two groups of first vertical driving mechanisms 4 respectively; each group of first vertical driving mechanisms 4 comprises a second eccentric wheel mechanism 4-1 arranged on the rack and a first eccentric driving mechanism for driving the second eccentric wheel mechanism 4-1 to act, wherein the second eccentric wheel mechanism 4-1 comprises a second eccentric wheel seat and a second eccentric wheel arranged on the second eccentric wheel seat, and the second eccentric wheel is connected with the clamping module through a second connecting piece 4-2; the second connecting piece 4-2 comprises a second connecting shaft and a second connecting seat, wherein the lower end of the second connecting seat is connected with the clamping module, and the upper end of the second connecting seat is provided with a second connecting hole matched with the second connecting shaft; one end of the second connecting shaft is matched with the second connecting hole, and the other end of the second connecting shaft is connected with the second eccentric wheel. The first eccentric driving mechanism drives the second eccentric wheel to rotate, so that the second connecting seat and the clamping module connected with the second connecting seat are driven to vertically move.

Referring to fig. 1-15, the ear wire welding device comprises an ultrasonic welding head arranged on a frame, a welding head and a second vertical driving mechanism 5 for driving the pressing head to move vertically; the welding device comprises a plurality of welding heads, a welding head and a welding head, wherein the plurality of welding heads are connected through a connecting frame; the second vertical driving mechanism 5 comprises a third eccentric wheel mechanism 5-1 arranged on the machine frame and a second eccentric driving mechanism used for driving the third eccentric wheel mechanism 5-1 to act, wherein the third eccentric wheel mechanism 5-1 comprises a third eccentric wheel seat and a third eccentric wheel arranged on the third eccentric wheel seat, and the third eccentric wheel is connected with the connecting frame through a third connecting piece 5-2; the third connecting piece 5-2 comprises a third connecting shaft and a third connecting seat, wherein the lower end of the third connecting seat is connected with the connecting frame, and the upper end of the third connecting seat is provided with a third connecting hole matched with the third connecting shaft; one end of the third connecting shaft is matched with the third connecting hole, and the other end of the third connecting shaft is connected with the third eccentric wheel. And the third eccentric wheel is driven to rotate by the second eccentric driving mechanism, so that the second connecting seat, and the connecting frame and the welding head which are connected with the second connecting seat are driven to vertically move, and the welding work of the lug wire is completed.

Referring to fig. 1-15, the first eccentric driving mechanism and the second eccentric driving mechanism are in the same group, and include an eccentric motor 6 and an eccentric transmission mechanism 7, where the eccentric transmission mechanism 7 includes a first gear 7-1 and a third gear 7-3 coaxially disposed with a first eccentric wheel in two groups of first vertical driving mechanisms 4, respectively, and a second gear 7-2 coaxially disposed with a second eccentric wheel in a second vertical driving mechanism 5, where the first gear 7-1 and the third gear 7-3 have the same size, and the diameter of the second gear 7-2 is smaller than the diameter of the first gear 7-1 and the third gear 7-3; the first gear 7-1 and the third gear 7-3 are respectively positioned at two sides of the second gear 7-2 and are respectively meshed with the second gear 7-2; the eccentric motor 6 is arranged on the rack, and a main shaft of the eccentric motor 6 is connected with a rotating shaft of the second gear 7-2 through a gear transmission mechanism 7-4; the gear transmission mechanism 7-4 includes a pinion gear provided on the main shaft of the eccentric motor 6 and a pinion gear provided on the rotating shaft, and the large gear and the pinion gear are engaged.

Through the arrangement, when the eccentric motor 6 drives the pinion to rotate, the gearwheel, the second gear 7-2 and the second eccentric wheel which are coaxially connected with the gearwheel synchronously rotate, and the second gear 7-2 drives the first gear 7-1 and the third gear 7-3 to synchronously rotate, so that the second eccentric wheels of the two groups of first vertical driving mechanisms 4 are driven to rotate. In the process, the first gear 7-1 and the third gear 7-3 rotate in the same direction, and the direction of rotation of the first gear 7-1 is opposite to that of the second gear 7-2; the third eccentric wheel and the second eccentric wheels of the two first vertical driving mechanisms 4 have opposite rotating directions; namely, when the first vertical driving mechanism 4 drives the clamping module to move upwards, the second vertical driving mechanism 5 drives the welding head to move downwards, and vice versa. Thus, one group of power driving mechanisms can be shared between the two groups of first vertical driving mechanisms 4 and the one group of second vertical driving mechanisms 5, and cost is saved.

The first vertical driving mechanism 4 and the second vertical driving mechanism 5 also comprise vertical guide mechanisms for guiding the vertical movement of the clamping modules and the welding heads, the vertical guide mechanisms can be in multiple groups, each group of vertical guide mechanisms adopts a mode of combining a guide sleeve and a guide rod, the guide sleeve is installed on the rack, and the guide rods are vertically arranged and are respectively connected with the clamping modules and the connecting frame. In addition, the first vertical driving mechanism 4 and the second vertical driving mechanism 5 further comprise sliding mechanisms for guiding the vertical movement of the second connecting seat and the third connecting seat, and the sliding mechanisms are sliding block and sliding rail mechanisms or sliding groove and sliding block mechanisms. This embodiment adopts spout slider mechanism promptly set up in the frame with second connecting seat and third connecting seat complex vertical spout, second connecting seat and third connecting seat act as slider in the spout slider mechanism. In addition, a detection device 8 for detecting the vertical stroke of the second connecting seat and the third connecting seat, for example, a detection sheet arranged on the second connecting seat and the third connecting seat and a photoelectric sensor arranged on the rack, may also be provided.

Finally, the specific structure of the ear wire welding module 1 of the present invention can be implemented with reference to "a mask-producing intermittent ear wire welding apparatus" of application No. 202010211029. X.

Referring to fig. 1 to 15, the operating principle of the all-electric flat mask ear line welding device of the present invention is as follows:

when the ear wire clamping and conveying device is used, the ear wire conveying device drives the ear wires to penetrate through the lower portion of the baffle 2-1, when the ear wire clamping and conveying device drives the two ends of the ear wires to move towards the ear wire welding station, the part of the ear wires in the middle of the ear wires are blocked by the wire blocking portion of the baffle 2-1, and therefore only the end portion clamped by the ear wire clamping and conveying device in the ear wires reaches the ear wire welding station. Subsequently, the ear wire welding device welds the ear wire to the mask body. The mask conveying device continues to drive the mask body which completes the ear line welding to move, at the moment, the mask body also drives the ear lines wound on the line blocking parts of the baffle plates 2-1 to move, and the baffle plates 2-1 are provided with the guide parts, so that the ear lines wound on the line blocking parts can synchronously move forwards along with the mask body under the guide of the guide parts. And in the process, as the guide part 2-2 is connected with the wire blocking part of the baffle plate 2-1, the ear wire is sleeved on the guide part 2-2 after leaving the baffle plate 2-1 and moves along the extending direction of the guide part 2-2. In the process that the ear wire moves along the extending direction of the guide piece 2-2, one end of the guide piece 2-2 is connected with the wire blocking part, and the other end of the guide piece extends to the upper part of the mask body towards the conveying direction of the mask body; in the process that the guide piece 2-2 extends to the upper part of the mask body, the guide pieces 2-2 in the ear line folding modules 2 positioned at the two sides of the mask body are respectively bent inwards along the vertical bisector of the width direction of the mask body for transition; therefore, when the ear wire sleeved on the guide 2-2 contacts the inward curved transition part of the guide 2-2, the inward curved transition part of the guide 2-2 causes the ear wire to be gradually folded inwards, and when the ear wire moves to be separated from the guide 2-2, the ear wire drops on the mask body under the self gravity thereof due to lack of the support of the guide 2-2, thereby completing the folding of the ear wire. When the mask body after the ear line folding action is completed moves to the ear line pressing station, the pressing driving mechanism drives the pressing block 3-1 to move vertically, so that the mask body is pressed (mainly the ear line at the welding point on the mask body is pressed), and the ear line folded on the mask body is pressed on the mask body.

In the process, the fully-electric flat mask ear line welding equipment is not provided with an additional turnover power mechanism, the baffle 2-1 and the guide 2-2 are arranged, so that ear lines hung on two sides of the mask body synchronously move along with the mask body, the ear lines sleeved on the guide 2-2 are automatically turned over to the upper part of the mask body under the guide of the guide 2-2, and when the ear lines are separated from the guide 2-2, the ear lines fall onto the mask body under the self gravity of the ear lines, so that the ear lines on two sides of the mask body are turned over onto the mask body. Thus, a folding device with power drive is not needed to be arranged between the ear wire welding module 1 and the ear wire pressing module 3, thereby reducing the manufacturing cost.

The present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents and equivalents thereof, which are intended to be included in the scope of the present invention.

Claims

1. An all-electric flat mask ear wire welding device comprises a frame, an ear wire welding module arranged on the frame, an ear wire folding module used for folding over the ear wires hung on two sides of a mask body after the ear wire welding process is finished onto the mask body, and an ear wire pressing module used for pressing the mask body after the ear wire folding module is folded,

the two groups of ear wire folding modules are respectively used for folding the ear wires hung on the two sides of the mask body onto the mask body; each group of ear line folding modules comprises a baffle plate and a guide piece connected with the baffle plate, wherein,

the baffle is arranged on the rack and is positioned opposite to the lug wire welding station; the baffle is provided with a line blocking part and a guide part connected with the line blocking part; the ear wire conveying device drives the ear wire to penetrate through the lower part of the baffle; when the ear wire clamping and conveying device conveys two ends of an ear wire to an ear wire welding station, a part of the ear wire in the middle of the ear wire is blocked by the wire blocking part of the baffle; after the ear wires are welded on the mask body by the ear wire welding device, the guide part on the baffle plate is used for guiding part of the ear wires blocked by the wire blocking part to be separated from the wire blocking part along with the movement of the mask body driven by the mask conveying device;

one end of the guide piece is connected with the line blocking part, and the other end of the guide piece extends to the upper part of the mask body towards the conveying direction of the mask body; in the process of extending to the upper part of the mask body, the guide pieces in the ear line folding modules positioned at two sides of the mask body are bent and transited along the inner side of the mask body; the mask conveying device comprises a baffle, a guide piece, a guide rod and a mask conveying device, wherein the guide piece is a guide rod, one end of the guide rod is connected with a line blocking part of the baffle, and after the other end of the guide rod horizontally extends along the conveying direction of the mask conveying device, the guide rod upwards extends towards the inner side of the mask body; when the guide piece is positioned above the mask body, the guide rod horizontally extends along the conveying direction of the mask body;

the ear wire pressing module is arranged at a downstream station of the ear wire turnover module and comprises a support arranged on a rack, a pressing block arranged on the support and a pressing driving mechanism used for driving the pressing block to move vertically, wherein the pressing driving mechanism comprises a pressing motor and a first eccentric wheel mechanism, the first eccentric wheel mechanism comprises a first eccentric wheel seat arranged on the support and a first eccentric wheel arranged on the first eccentric wheel seat, the first eccentric wheel is arranged on the first eccentric wheel seat, the pressing motor is arranged on the support, and a main shaft of the pressing motor is connected with the first eccentric wheel; the first eccentric wheel is connected with the pressing block through a first connecting piece; the first connecting piece comprises a first connecting shaft and a first connecting seat, wherein the lower end of the first connecting seat is connected with the pressing block, and the upper end of the first connecting seat is provided with a first connecting hole matched with the first connecting shaft; one end of the first connecting shaft is matched with the first connecting hole, and the other end of the first connecting shaft is connected with the first eccentric wheel;

the baffle comprises a horizontal section and a vertical section, wherein one end of the horizontal section is connected with the rack, and the other end of the horizontal section is connected with the vertical section; the vertical section forms the line blocking part, two ends of the vertical section are provided with arc surfaces, and the arc surfaces form the guide part;

the end part of the vertical section, which is in contact with the guide rod, is also provided with a guide part, the guide part horizontally extends along the conveying direction of the mask body, and the guide rod is connected with the guide part;

the ear wire turnover module further comprises an arc-shaped guide plate, the arc-shaped guide plate is positioned below a part of guide rods extending upwards in the guide rods, one end of the arc-shaped guide plate is connected with the support, and the other end of the arc-shaped guide plate extends upwards towards the conveying direction of the mask body;

the pressing driving mechanism further comprises two groups of pressing guide mechanisms, the two groups of pressing guide mechanisms are respectively located on two sides of the support, each group of pressing guide mechanisms comprises a guide sleeve arranged on the support and a guide shaft arranged on the guide sleeve and matched with the guide sleeve, wherein the guide shaft is vertically arranged, and the lower end of the guide shaft is matched with the pressing block.

2. The all-electric flat mask ear wire welding device according to claim 1, wherein the ear wire clamping and conveying device comprises a clamping module, a first vertical driving mechanism for driving the clamping module to make vertical motion, and a rotary driving mechanism for driving the clamping module to make rotary motion; the clamping modules are divided into two groups, and the two groups of clamping modules are respectively driven by two groups of first vertical driving mechanisms; each group of first vertical driving mechanisms comprises a second eccentric wheel mechanism arranged on the rack and a first eccentric driving mechanism used for driving the second eccentric wheel mechanism to act, wherein the second eccentric wheel mechanism comprises a second eccentric wheel seat and a second eccentric wheel arranged on the second eccentric wheel seat, and the second eccentric wheel is connected with the clamping module through a second connecting piece; the second connecting piece comprises a second connecting shaft and a second connecting seat, wherein the lower end of the second connecting seat is connected with the clamping module, and the upper end of the second connecting seat is provided with a second connecting hole matched with the second connecting shaft; one end of the second connecting shaft is matched with the second connecting hole, and the other end of the second connecting shaft is connected with the second eccentric wheel.

3. The all-electric flat mask ear wire welding device according to claim 2, wherein the ear wire welding device comprises an ultrasonic welding head disposed on the frame, a welding head and a second vertical driving mechanism for driving the welding head to move vertically; the welding device comprises a plurality of welding heads, a welding head and a welding head, wherein the plurality of welding heads are connected through a connecting frame; the second vertical driving mechanism comprises a third eccentric wheel mechanism arranged on the rack and a second eccentric driving mechanism used for driving the third eccentric wheel mechanism to act, wherein the third eccentric wheel mechanism comprises a third eccentric wheel seat and a third eccentric wheel arranged on the third eccentric wheel seat, and the third eccentric wheel is connected with the connecting rack through a third connecting piece; the third connecting piece comprises a third connecting shaft and a third connecting seat, wherein the lower end of the third connecting seat is connected with the connecting frame, and the upper end of the third connecting seat is provided with a third connecting hole matched with the third connecting shaft; one end of the third connecting shaft is matched with the third connecting hole, and the other end of the third connecting shaft is connected with the third eccentric wheel.

4. The all-electric flat mask ear wire welding device according to claim 3, wherein the first and second eccentric driving mechanisms are in the same group and comprise eccentric motors and eccentric transmission mechanisms, wherein the eccentric transmission mechanisms comprise first and third gears coaxially arranged with first eccentric wheels of two groups of first vertical driving mechanisms, respectively, and second gears coaxially arranged with second eccentric wheels of second vertical driving mechanisms, wherein the first and third gears have the same size, and the diameter of the second gear is smaller than that of the first and third gears; the first gear and the third gear are respectively positioned at two sides of the second gear and are respectively meshed with the second gear; the eccentric motor is arranged on the rack, and a main shaft of the eccentric motor is connected with a rotating shaft of the second gear through a gear transmission mechanism; the gear transmission mechanism comprises a pinion arranged on a main shaft of the eccentric motor and a pinion arranged on the rotating shaft, and the bull gear is meshed with the pinion.