Headgear adjustment conveyor for long short headgear folded mask

Abstract

The application relates to the technical field of mask machines, in particular to a headband adjusting and conveying device for long-short-headband type head-hanging folded masks, which comprises a short-headband pushing mechanism, a long-headband sucking mechanism, a long-headband clamping mechanism, a long-headband moving driving mechanism and two groups of annular conveying belts, the two groups of annular conveying belts are oppositely arranged and form a conveying belt gap, the long-headband sucking mechanism and the long-headband clamping mechanism are both located in front of the feeding end of the conveying belt gap, the long-headband sucking mechanism and the long-headband clamping mechanism are correspondingly arranged, the moving end of the long-headband moving driving mechanism is connected with the long-headband clamping mechanism, the short-headband pushing mechanism is located on the front side or the rear side of the long-headband clamping mechanism, and the long-headband clamping mechanism is located below the conveying belt gap. The long-headband and the short-headband can be adjusted in position after the headband is welded and before the edge fusion forming, the long-headband and the short-headband are prevented from swinging at will and affecting the subsequent edge fusion forming process, the qualified rate of the long-short-headband type head-hanging folded masks is improved, and the production cost is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mask machines, in particular to a headband adjusting and conveying device for long and short headband type head-hung folded masks. BACKGROUND

[0002] In the production of head-hung folded masks, the headband welding mechanism welds two headbands at the preset position of the mask cloth body, and the mask cloth body with the welded headbands is conveyed to the next process (fusion edge forming process). Due to the U-shaped downward hanging of the headbands under the action of gravity, the downward and randomly swinging headbands will affect the subsequent processing process. In order to prevent the headbands from affecting the subsequent processing process, the headbands generally need to be adjusted before entering the next process.

[0003] In the existing patent, the Chinese patent document with the application number 202023205026.X discloses a mask headband welding device and a head-mounted mask machine. The machine frame of the forming fusion device is provided with a forming fusion mechanism, a headband adjusting assembly and a headband conveying assembly. The headband adjusting assembly is used to adjust the position of the headband, the headband conveying assembly is used to separately convey the headband adjusted by the headband adjusting assembly, and the fusion mechanism is used to form and fuse the mask cloth with the adjusted headband position. The headband adjusting assembly includes a cylinder, a swing arm, a fixed plate, a finger cylinder and two right-angle plates fixedly installed on the output end of the finger cylinder. One end of the fixed plate is fixedly installed on the bottom plate of the forming fusion mechanism, one end of the cylinder is fixedly installed on the fixed plate, the moving end of the cylinder is rotatably connected with one end of the swing arm, and the other end of the swing arm is fixedly connected with the finger cylinder through the mounting hole on the fixed plate. The cylinder pulls the swing arm to rotate around the mounting hole, thereby driving the finger cylinder to swing. In the initial state, the right-angle plate on the finger cylinder is inclined forward at an angle of 60° to the horizontal plane. When the mask cloth reaches the position of the right-angle plate, the headband is sleeved on the top end of the right-angle plate. The cylinder pulls back the right-angle plate to gradually become perpendicular to the horizontal plane, and the headband is vertically lifted. Finally, the suction pipe sucks the headband into the headband conveying assembly. A hair dryer is arranged on both sides of the finger cylinder to blow air on the headband together with the suction pipe to avoid the headband from not entering the headband conveying assembly due to insufficient suction. Although the patent document can adjust and convey the headbands, it can only adjust the headbands with the same length, and cannot adjust the two headbands with different lengths separately, thereby failing to realize the production and processing of long and short headband type head-hung folded masks.

[0004] Therefore, the defect is very obvious, and a solution needs to be provided. SUMMARY

[0005] In order to solve the above technical problems, the purpose of the present application is to provide a headband adjusting and conveying device for long and short headband type head-hung folded masks.

[0006] In order to achieve the above object, the present application adopts the following technical solutions:

[0007] A headband adjustment conveying device of a long-short headband type head-hung folding mask, comprising a short headband pushing mechanism, a long headband sucking mechanism, a long headband clamping mechanism, a long headband moving driving mechanism and two sets of ring-shaped conveying belts, the two sets of ring-shaped conveying belts are oppositely arranged and form a conveying belt gap, the moving direction of the long headband moving driving mechanism is the same as the conveying direction of the ring-shaped conveying belts, the long headband sucking mechanism and the long headband clamping mechanism are both located in front of the feeding end of the conveying belt gap, the long headband sucking mechanism and the long headband clamping mechanism are correspondingly arranged, the moving end of the long headband moving driving mechanism is connected with the long headband clamping mechanism, the short headband pushing mechanism is located on the front side or the rear side of the long headband clamping mechanism, and the long headband clamping mechanism is located below the conveying belt gap.

[0008] Further, when the short headband pushing mechanism is located on the rear side of the long headband clamping mechanism, the two short headband pushing ends of the short headband pushing mechanism can be movably arranged above the conveying belt gap.

[0009] Further, the short headband pushing mechanism comprises a short headband moving driving mechanism, a first opening and closing driver connected to the moving end of the short headband moving driving mechanism, and two pushing belt plates respectively arranged on the two output ends of the first opening and closing driver, the first opening and closing driver is used for driving the two pushing belt plates to move close to or away from each other, and the moving direction of the short headband moving driving mechanism is the same as the moving direction of the long headband moving driving mechanism.

[0010] Further, the first opening and closing driver comprises a first moving plate arranged on the moving end of the short headband moving driving mechanism and a first finger air cylinder arranged on the first moving plate, the two pushing belt plates are respectively arranged on the two output ends of the first finger air cylinder, the first moving plate is located below the conveying belt gap, the inner side belt segments of the two sets of ring-shaped conveying belts are located between the two pushing belt plates, and the two pushing belt plates respectively pass through the hollow cavities of the two sets of ring-shaped conveying belts from bottom to top.

[0011] Further, the side of the two pushing belt plates close to each other is recessed with a avoiding groove, and the avoiding groove is used for accommodating the inner side belt segments of the ring-shaped conveying belts.

[0012] Further, the long headband clamping mechanism comprises a second moving plate connected with the moving end of the long headband moving driving mechanism, a telescopic driver arranged on the second moving plate, and a clamping assembly arranged on the telescopic end of the telescopic driver, and the clamping assembly is located in front of the feeding end of the conveying belt gap.

[0013] Further, the clamping assembly comprises a second finger air cylinder arranged on the telescopic end of the telescopic driver and two clamping belt plates respectively arranged on the two output ends of the second finger air cylinder.

[0014] Further, the long headband sucking mechanism comprises a vacuum suction head, and the vacuum suction head sucks air from bottom to top and is used for sucking the long headband.

[0015] Further, the headband adjusting and conveying device of the long and short headband type head-hung folded mask further comprises a feeding mechanism for conveying the mask cloth body to which the long headband and the short headband are welded, and the feeding mechanism is located above the belt conveying gap.

[0016] Further, the headband adjusting and conveying device of the long and short headband type head-hung folded mask further comprises a conveying driver for driving the two groups of ring-shaped conveying belts to rotate in opposite directions.

[0017] The present application has the following beneficial effects: the present application can adjust and position the positions of the long headband and the short headband after the headband is welded and before the edge fusion molding is performed, avoid the long headband and the short headband to swing randomly and affect the normal performance of the subsequent edge fusion molding, so as to be able to normally produce the long and short headband type head-hung folded mask, greatly improve the qualified rate of producing the long and short headband type head-hung folded mask, and reduce the production cost. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the first embodiment of the present application.

[0019] Figure 2 It is a schematic diagram of the three-dimensional structure of the second embodiment of the present application.

[0020] Figure 3 It is a schematic diagram of the three-dimensional structure of the long headband and short headband pushing mechanism of the present application.

[0021] Figure 4 It is a schematic diagram of the three-dimensional structure of the long headband and short headband pushing mechanism of the present application.

[0022] Figure 5 It is a schematic diagram of the structure of the long headband and short headband from the downward hanging state to the adjusted state (inclined state) in the present embodiment.

[0023] BRIEF DESCRIPTION OF DRAWINGS:

[0024] 1, long headband and short headband pushing mechanism; 11, short headband moving driving mechanism; 12, first opening and closing driver; 13, belt pushing plate; 14, first moving plate; 15, first finger air cylinder; 16, avoiding groove; 2, long headband suction mechanism; 3, long headband clamping mechanism; 31, second moving plate; 32, telescopic driver; 33, clamping assembly; 34, second finger air cylinder; 35, clamping plate; 4, long headband moving driving mechanism; 5, ring-shaped conveying belt; 6, feeding mechanism; 61, mask cloth body; 62, long headband; 63, short headband. DETAILED DESCRIPTION

[0025] In order to facilitate the understanding of those skilled in the art, the present application will be further described below in conjunction with the embodiments and the drawings, and the contents mentioned in the embodiments are not limitations of the present application.

[0026] Embodiment one.

[0027] As shown in Figure 1 , 3 , 4 and 5, the headband adjustment conveying device of the long-short headband type head-hung folded mask provided by the application comprises a long headband pushing mechanism 1, a long headband sucking mechanism 2, a long headband clamping mechanism 3, a long headband moving driving mechanism 4 and two sets of ring-shaped conveying belts 5, the two sets of ring-shaped conveying belts 5 are oppositely arranged and form a conveying gap, the moving direction of the long headband moving driving mechanism 4 is the same as the conveying direction of the ring-shaped conveying belts 5, the long headband sucking mechanism 2 and the long headband clamping mechanism 3 are both located in front of the feeding end of the conveying gap, the long headband sucking mechanism 2 is correspondingly arranged with the long headband clamping mechanism 3, the moving end of the long headband moving driving mechanism 4 is connected with the long headband clamping mechanism 3, the long headband pushing mechanism 1 is located in front of the long headband clamping mechanism 3, and the long headband clamping mechanism 3 is located below the conveying gap; specifically, the headband adjustment conveying device of the long-short headband type head-hung folded mask further comprises a feeding mechanism 6 for conveying a mask cloth body 61 welded with a long headband 62 and a short headband 63 and a conveying driver for driving the two sets of ring-shaped conveying belts 5 to rotate in opposite directions, and the feeding mechanism 6 is located above the conveying gap; preferably, the feeding mechanism 6 adopts a roller pressing type feeding structure, which will not be described here again. The application is applied in a mask machine, and the long-short headband adjustment process of the application is located after the welding of the headband and before the edge sealing and forming of the mask body.

[0028] In actual application, in the previous process, the welding head belt mechanism respectively welds the long head belt 62 and the short head belt 63 on the preset position of the mask cloth body 61, and the mask cloth body 61 welded with the long head belt 62 and the short head belt 63 is in a vertical state and is conveyed to the feeding mechanism 6, and the feeding mechanism 6 conveys the mask cloth body 61 in the vertical state to the next process (the fusion edge forming process), and since the mask cloth body 61 is in the vertical state, the long head belt 62 and the short head belt 63 will be hung down and present a U shape under the action of gravity, in order to avoid that the long head belt 62 and the short head belt 63 affect the normal performance of the fusion edge forming process, the short head belt 63 welded on the mask cloth body 61 is pushed back by the short head belt pushing mechanism 1 first, so that the short head belt 63 is inclined, until the inner wall of the U-shaped short head belt 63 is in contact with the bottom edge of the mask cloth body 61 in the vertical state, since the short head belt 63 has a certain elasticity, the short head belt 63 can be inclined and positioned (hung) on the bottom edge of the mask cloth body 61, so as to adjust and position the short head belt 63, when the mask cloth body 61 after adjusting the short head belt 63 moves to the suction long head belt mechanism 2 and the clamping long head belt mechanism 3, the mask cloth body 61 stops moving, the suction long head belt mechanism 2 first sucks the long head belt 62, and then the clamping long head belt mechanism 3 clamps the sucked long head belt 62, then the long head belt moving drive mechanism 4 drives the clamping long head belt mechanism 3 and the long head belt 62 to move back, so that the long head belt 62 is set to be inclined back, so as to complete the position adjustment of the long head belt 62, with the feeding of the feeding mechanism 6 to the mask cloth body 61, the clamping long head belt mechanism 3 moves the long head belt 62 set to be inclined back to the belt conveying gap of the two groups of ring-shaped conveying belts 5, the two groups of ring-shaped conveying belts 5 clamp the position-adjusted long head belt 62 and convey it, so that the long head belt 62 keeps the state of being inclined back and moves synchronously with the moving mask cloth body 61 to the fusion edge forming mechanism, and the fusion edge forming mechanism performs fusion edge forming processing on the mask cloth body 61 welded with the long and short head belts. The present application can adjust and position the long head belt 62 and the short head belt 63 after welding the head belt and before fusion edge forming, avoid that the long head belt 62 and the short head belt 63 swing randomly and affect the normal performance of the subsequent fusion edge forming, so as to normally produce the long and short head belt type head hanging folded mask (the head hanging folded mask with the long head belt 62 and the short head belt 63), greatly improve the qualified rate of producing the long and short head belt type head hanging folded mask, and reduce the production cost.

[0029] In the embodiment, the short head belt pushing mechanism 1 comprises a short head belt moving drive mechanism 11, a first opening and closing driver 12 connected to the moving end of the short head belt moving drive mechanism 11, and two push belt plates 13 respectively arranged on the two output ends of the first opening and closing driver 12, the first opening and closing driver 12 is used to drive the two push belt plates 13 to move close to or away from each other, and the moving direction of the short head belt moving drive mechanism 11 is the same as that of the long head belt moving drive mechanism 4.

[0030] In actual application, when the mask cloth body 61 to be adjusted the position of the short head band 63 moves to the push short head band mechanism 1, the mask cloth body 61 in vertical state is located between and passes through the two push band plates 13, the first opening and closing driver 12 drives the two push band plates 13 to move close to each other, until the two push band plates 13 respectively abut against the two band segments of the short head band 63, then the short head band moving driving mechanism 11 drives the first opening and closing driver 12 and the two push band plates 13 to move backward, the two push band plates 13 move backward and push the short head band 63 to swing backward, until the short head band 63 is hung on and positioned on the bottom edge of the mask cloth body 61, so as to complete the position adjustment of the short head band 63.

[0031] In the embodiment, the first opening and closing driver 12 includes a first moving plate 14 arranged on the moving end of the short head band moving driving mechanism 11 and a first finger air cylinder 15 arranged on the first moving plate 14, and the two push band plates 13 are respectively arranged on the two output ends of the first finger air cylinder 15. In actual application, the first finger air cylinder 15 is vertically upward arranged, and the first finger air cylinder 15 is used to drive the two push band plates 13 to move close to or away from each other. The structure is simple, the action is sensitive, and it is high efficient.

[0032] In the embodiment, the clamp long head band mechanism 3 includes a second moving plate 31 connected with the moving end of the long head band moving driving mechanism 4, a telescopic driver 32 arranged on the second moving plate 31, and a clamp band assembly 33 arranged on the telescopic end of the telescopic driver 32, the clamp band assembly 33 is located in front of the feeding end of the belt gap, the telescopic driver 32 is a horizontally arranged air cylinder, and the clamp band assembly 33 is horizontally arranged.

[0033] In actual application, after the suction long head band mechanism 2 sucks the long head band 62 to the preset position, the telescopic driver 32 drives the clamp band assembly 33 to extend, so that the long head band 62 is located in the clamping end of the clamp band assembly 33, then the clamping end of the clamp band assembly 33 clamps the long head band 62, and then the long head band moving driving mechanism 4 drives the second moving plate 31, the telescopic driver 32, the clamp band assembly 33 and the long head band 62 to move backward, so that the long head band 62 is inclined, so as to adjust the position of the long head band 62, and then the adjusted long head band 62 is fed into the belt gap of the two groups of ring-shaped conveying belts 5, the two groups of ring-shaped conveying belts 5 not only convey the long head band 62, but also can keep the adjusted position of the long head band 62.

[0034] In the embodiment, the clamp band assembly 33 includes a second finger air cylinder 34 arranged on the telescopic end of the telescopic driver 32 and two clamp band plates 35 respectively arranged on the two output ends of the second finger air cylinder 34, and the second finger air cylinder 34 is horizontally arranged. In actual application, the second finger air cylinder 34 drives the two clamp band plates 35 to move close to or away from each other, so as to clamp or release the long head band 62.

[0035] In this embodiment, the long headband suction mechanism 2 includes a vacuum suction head, which is connected to a vacuum pumping mechanism. The vacuum suction head draws air from bottom to top and is used to pick up the long headband 62. The vacuum suction head generates negative pressure to pick up the long headband 62, so that the long headband 62 is initially positioned in a preset position, which is beneficial for the clamping assembly 33 to accurately and stably clamp the long headband 62.

[0036] Example 2.

[0037] like Figures 2-5 As shown, the difference between this embodiment and Embodiment 1 is that: a headband adjustment and conveying device for a long / short headband type folding mask includes a headband pushing mechanism 1, a headband suction mechanism 2, a headband clamping mechanism 3, a headband moving drive mechanism 4, and two sets of annular conveyor belts 5. The two sets of annular conveyor belts 5 are arranged opposite each other to form a feeding gap. The moving direction of the headband moving drive mechanism 4 is the same as the conveying direction of the annular conveyor belts 5. The headband suction mechanism 2 and the headband clamping mechanism 3 are both located in front of the feeding end of the feeding gap. The headband suction mechanism 2 and the headband clamping mechanism 3 are arranged correspondingly. The moving end of the headband moving drive mechanism 4 is connected to the headband clamping mechanism 3. The headband pushing mechanism 1 is located behind the headband clamping mechanism 3, and the headband clamping mechanism 3 is located below the feeding gap. In this embodiment, when the headband pushing mechanism 1 is located behind the headband clamping mechanism 3, the two headband pushing ends of the headband pushing mechanism 1 can be movably arranged above the feeding gap.

[0038] In actual application, in the previous process, the welding head belt mechanism respectively welds the long head belt 62 and the short head belt 63 on the preset position of the mask cloth body 61, and the mask cloth body 61 welded with the long head belt 62 and the short head belt 63 is in a vertical state and is conveyed to the feeding mechanism 6, and the feeding mechanism 6 conveys the mask cloth body 61 in the vertical state to the next process (the fusion edge forming process), and since the mask cloth body 61 is in the vertical state, the long head belt 62 and the short head belt 63 will be hung down and present a U shape under the action of gravity, in order to avoid that the long head belt 62 and the short head belt 63 affect the normal progress of the fusion edge forming process, when the mask cloth body 61 moves to the position where the long head belt suction mechanism 2 and the long head belt clamping mechanism 3 are located, the mask cloth body 61 stops moving, the long head belt suction mechanism 2 first sucks the long head belt 62, and then the long head belt clamping mechanism 3 clamps the sucked long head belt 62, then the long head belt moving drive mechanism 4 drives the long head belt clamping mechanism 3 and the long head belt 62 to move backward, so that the long head belt 62 is arranged to be inclined backward, so as to complete the position adjustment of the long head belt 62, along with the conveying of the mask cloth body 61 by the feeding mechanism 6, the long head belt clamping mechanism 3 moves the long head belt 62 arranged to be inclined backward to the belt conveying gap of the two groups of ring-shaped conveying belts 5, the two groups of ring-shaped conveying belts 5 clamp the position-adjusted long head belt 62 and convey it, so that the long head belt 62 keeps the state of being inclined backward and moves synchronously with the moving mask cloth body 61, when the mask cloth body 61 whose position is adjusted by the long head belt 62 moves to the position of the short head belt pushing mechanism 1, the short head belt pushing mechanism 1 pushes the short head belt 63 welded on the mask cloth body 61 backward, so that the short head belt 63 is inclined, until the inner wall of the U-shaped short head belt 63 abuts against the bottom edge of the mask cloth body 61 in the vertical state, since the short head belt 63 has a certain elasticity, the short head belt 63 can be limited to be inclined on the bottom edge of the mask cloth body 61, so as to adjust and position the short head belt 63, when the position of the short head belt 63 is adjusted, the mask cloth body 61 stops moving or the pushing speed of the short head belt 63 by the short head belt pushing mechanism 1 is greater than the moving speed of the mask cloth body 61, so as to ensure that the position adjustment of the short head belt 63 can be normally realized, then the feeding mechanism 6 conveys the mask cloth body 61 whose position is adjusted by the long head belt 62 and the short head belt 63 to the fusion edge forming mechanism, and the fusion edge forming mechanism performs the fusion edge forming treatment on the mask cloth body 61 welded with the long head belt and the short head belt. The present application can adjust and position the positions of the long head belt 62 and the short head belt 63 after welding the head belt and before the fusion edge forming, avoid that the long head belt 62 and the short head belt 63 swing randomly and affect the normal progress of the subsequent fusion edge forming, so as to normally produce the long head belt and short head belt type head hanging foldable mask (the head hanging foldable mask with the long head belt 62 and the short head belt 63), greatly improve the qualified rate of producing the long head belt and short head belt type head hanging foldable mask, and reduce the production cost.

[0039] In the embodiment, the first opening and closing driver 12 comprises a first moving plate 14 arranged at the moving end of the short head belt moving driving mechanism 11 and a first finger air cylinder 15 arranged at the first moving plate 14, two belt pushing plates 13 are respectively arranged at the two output ends of the first finger air cylinder 15, the first moving plate 14 is located below the belt feeding gap, the inner side belt sections of the two sets of annular conveying belts 5 are located between the two belt pushing plates 13, and the two belt pushing plates 13 respectively penetrate the hollow cavities of the two sets of annular conveying belts 5 from bottom to top; specifically, the first finger air cylinder 15 is vertically arranged upwards, and the first finger air cylinder 15 is used for driving the two belt pushing plates 13 to move close to or away from each other; the two belt pushing plates 13 respectively penetrate the hollow cavities of the two sets of annular conveying belts 5 from bottom to top, so that the structure between the first opening and closing driver 12, the two belt pushing plates 13 and the two sets of annular conveying belts 5 is compact and the layout is reasonable.

[0040] In the embodiment, the side, at which the two belt pushing plates 13 are close to each other, is concavely arranged with an avoiding groove 16, and the avoiding groove 16 is used for accommodating the inner side belt sections of the annular conveying belts 5. In the process that the two belt pushing plates 13 are close to each other and push the short head belt 63 backwards, the inner side belt sections of the annular conveying belts 5 are accommodated in the avoiding grooves 16, so as to avoid the interference between the belt pushing plates 13 and the annular conveying belts 5.

[0041] The remaining structures of the embodiment are the same as those of the first embodiment, and the same structures are analyzed in the first embodiment, which will not be described here.

[0042] All the technical features in the embodiment can be freely combined according to actual needs.

[0043] The above embodiments are the preferred implementation of the present application, in addition to this, the present application can be implemented in other ways, without departing from the technical scheme concept, any obvious replacement within the protection scope of the present application.

Claims

1. A headband adjustment and conveying device for a long / short headband type folding mask, characterized in that: The device includes a short head belt mechanism (1), a long head belt suction mechanism (2), a long head belt clamping mechanism (3), a long head belt moving drive mechanism (4), and two sets of annular conveyor belts (5). The two sets of annular conveyor belts (5) are arranged opposite each other to form a belt feeding gap. The moving direction of the long head belt moving drive mechanism (4) is the same as the conveying direction of the annular conveyor belts (5). The long head belt suction mechanism (2) and the long head belt clamping mechanism (3) are both located in front of the feed end of the belt feeding gap. The long head belt suction mechanism (2) and the long head belt clamping mechanism (3) are arranged correspondingly. The moving end of the long head belt moving drive mechanism (4) is connected to the long head belt clamping mechanism (3). The short head belt mechanism (1) is located in front of or behind the long head belt clamping mechanism (3). The long head belt clamping mechanism (3) is located below the belt feeding gap. The long head belt suction mechanism (2) includes a vacuum suction head, which is connected to a vacuum pumping mechanism.

2. The headband adjustment and conveying device for a long / short headband type folding mask according to claim 1, characterized in that: When the headband pushing mechanism (1) is located behind the headband clamping mechanism (3), the two headband pushing ends of the headband pushing mechanism (1) can be movably positioned above the belt feeding gap.

3. The headband adjustment and conveying device for a long / short headband type folding mask according to claim 1, characterized in that: The short headband push mechanism (1) includes a short headband moving drive mechanism (11), a first opening and closing driver (12) connected to the moving end of the short headband moving drive mechanism (11), and two pusher plates (13) respectively installed at the two output ends of the first opening and closing driver (12). The first opening and closing driver (12) is used to drive the two pusher plates (13) to move closer or further away from each other. The moving direction of the short headband moving drive mechanism (11) is the same as the moving direction of the long headband moving drive mechanism (4).

4. The headband adjustment and conveying device for a long / short headband type folding mask according to claim 3, characterized in that: The first opening and closing driver (12) includes a first moving plate (14) installed at the moving end of the short head belt moving drive mechanism (11) and a first finger cylinder (15) installed on the first moving plate (14). Two push plates (13) are respectively installed at the two output ends of the first finger cylinder (15).

5. The headband adjustment and conveying device for a long / short headband type folding mask according to claim 4, characterized in that: The first moving plate (14) is located below the belt feeding gap. The inner belt sections of the two sets of annular conveyor belts (5) are located between the two pusher plates (13). The two pusher plates (13) pass through the hollow cavities of the two sets of annular conveyor belts (5) from bottom to top.

6. The headband adjustment and conveying device for a long / short headband type folding mask according to claim 5, characterized in that: Two pusher plates (13) are recessed on the side close to each other, and the recess (16) is used to accommodate the inner belt segment of the annular conveyor belt (5).

7. The headband adjustment and conveying device for a long / short headband type folding mask according to claim 1, characterized in that: The long head belt clamping mechanism (3) includes a second moving plate (31) connected to the moving end of the long head belt moving drive mechanism (4), a telescopic driver (32) mounted on the second moving plate (31), and a clamping assembly (33) mounted on the telescopic end of the telescopic driver (32). The clamping assembly (33) is located in front of the feed end of the belt feeding gap.

8. The headband adjustment and conveying device for a long / short headband type folding mask according to claim 7, characterized in that: The clamping assembly (33) includes a second finger cylinder (34) mounted on the telescopic end of the telescopic actuator (32) and two clamping plates (35) respectively mounted on the two output ends of the second finger cylinder (34).

9. The headband adjustment and conveying device for a long / short headband type folding mask according to claim 1, characterized in that: The headband adjustment conveying device for the long and short headband type folding mask also includes a feeding mechanism (6) for conveying the mask fabric body (61) welded with a long headband (62) and a short headband (63), the feeding mechanism (6) being located above the feeding belt gap.

10. The headband adjustment and conveying device for a long / short headband type folding mask according to claim 1, characterized in that: The headband adjustment conveyor for the long and short headband type folding mask also includes a conveyor driver for driving two sets of annular conveyor belts (5) to rotate in opposite directions.

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