CN220545886U

CN220545886U - Boot sleeve machine

Info

Publication number: CN220545886U
Application number: CN202120933337.3U
Authority: CN
Inventors: 高义; 徐建军
Original assignee: Zhejiang Deheng Machinery Co ltd
Current assignee: Zhejiang Deheng Machinery Co ltd
Priority date: 2021-05-01
Filing date: 2021-05-01
Publication date: 2024-03-01
Anticipated expiration: 2031-05-01

Abstract

The utility model discloses a boot sleeve machine, wherein an unreeling device comprises a first unreeling device for unreeling a first film and a second unreeling device for unreeling a second film, which are arranged in parallel; the rubber band unwinding device comprises a first rubber band unwinding device and a second rubber band unwinding device which are respectively correspondingly connected behind the first unwinding device and the second unwinding device; the laminating roller is used for overlapping the first film and the second film of the first rubber band and the second rubber band together to form a double-layer film structure; the welding guard edge part is used for welding upper guard edge strips at intervals of the double-layer film structure; the first traction roller set is used for traction of the double-layer film structure; the hot-press forming device is used for forming a conjoined boot sleeve blank by welding a double-layer film structure according to the shape of the boot sleeve and the specified width; the second traction roller set is used for traction of the conjoined boot sleeve blank; the cutting device is used for cutting the boot sleeve from the conjoined boot sleeve blank, automatically completes boot sleeve production, and has the advantages of high automation degree, high production efficiency and good boot sleeve quality.

Description

Boot sleeve machine

Technical Field

The utility model relates to the technical field of manufacturing equipment of disposable protective articles, in particular to a boot sleeve machine.

Background

The boot sleeve is a disposable protective article worn on feet, is usually made of CPE/PE plastic films, is produced by hot-welding a manually operated die at present and is matched with the shape of the feet, and has low production efficiency and high labor cost.

Disclosure of Invention

The utility model aims to provide a boot sleeve machine which can automatically produce a boot sleeve with good shape profiling property with human feet, has the advantages of stable performance, high production efficiency and low labor cost, and solves the problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the boot sleeve machine comprises a machine frame 1, wherein the machine frame 1 is sequentially provided with:

the unreeling device comprises a first unreeling device 2 for unreeling a first film 16 and a second unreeling device 3 for unreeling a second film 17, which are arranged in parallel;

the first rubber band unwinding device 4 and the second rubber band unwinding device 5 are respectively connected behind the first unwinding device 2 and the second unwinding device 3, and the first rubber band unwinding device 4 and the second rubber band unwinding device 5 are used for respectively wrapping the first rubber band 18 and the second rubber band 21 into the same side edge parts of the corresponding first film 16 and the corresponding second film 17;

the laminating roller 14 is arranged behind the first rubber band placing device 4 and the second rubber band placing device 5, and is used for overlapping the first film 16 and the second film 17 which are respectively wrapped with the first rubber band 18 and the second rubber band 21 and output by the first rubber band placing device 4 and the second rubber band placing device 5 together to form a double-layer film structure;

the welding edge protection part device 6 is arranged at the output end of the laminating roller 14 and is used for welding an upper edge protection strip 19 on one side of the double-layer film structure which is output by the laminating roller 14 and is wrapped with a first rubber band 18 and a second rubber band 21 at intervals;

the first traction roller group 7 is arranged behind the welding edge protection part device 6 and is used for traction of the double-layer film structure;

the hot press forming device 9 comprises a lower die plate 902 fixedly arranged on the frame 1 and a male die 901 which can be movably arranged above the lower die plate 902 up and down, wherein the lower end of the male die 901 is provided with a working part which is matched with the appearance of the boot 20, the male die 901 is provided with an electric heating device 904, and the working part of the male die 901 is matched with the lower die plate 902 and is used for welding the double-layer film structure output by the first traction roller set 7 into a connected boot blank with a specified width according to the appearance of the boot 20;

the second traction roller set 11 is arranged behind the hot press forming device 9 and is used for traction of the conjoined boot sleeve blank;

and the cutting device 12 is arranged behind the second traction roller group 11 and is used for cutting the boot sleeve 20 from the conjoined boot sleeve blank.

Further, the first rubber band releasing device 4 includes:

a wallboard 405 connected to the frame 1, for pivotally supporting the pressure roller 402;

a welding wheel 403, which is arranged above the pressure-bearing roller 402, wherein an electric heating structure is arranged in the welding wheel 403;

a folding plate 401, which is arranged at the feeding end of the welding wheel 403 and the pressure-bearing roller 402, and is used for inwards folding the 16-edge part of the film to a prescribed width to form a folding layer;

the rubber band guiding wheel 404 is arranged at the feeding end of the folding plate 401 and is used for guiding the first rubber band 18 into the folded layer at the 16-edge part of the film;

the welding wheel 403 is matched with the pressure-bearing roller 402 to heat-press weld the folding layer so that the first rubber band 18 is wrapped in the folding layer;

the second rubber band placing device 5 and the first rubber band placing device 4 have the same structure and are used for wrapping the second rubber band 21 in the folding layer of the second film 17.

Further, the welding edge protection device 6 is provided with two welding edge protection devices according to the direction spacing of the double-layer film structure, and each welding edge protection device comprises:

a support 601 connected to the frame 1;

a guide wheel 602 mounted on the support 601 for guiding the advancing of the edge protector material;

the small conveying belt 603 is arranged on the discharging side of the guide wheel 602;

a small pressing wheel 604, which is adapted to the small conveying belt 603;

the anvil block 605 is mounted on the support 601 and is positioned at the discharge end of the small conveyer belt 603, and the small pressing wheel 604 is matched with the small conveyer belt 603 to convey the edge protection material to the anvil block 605;

a cutter shaft 606, which is mounted on the support 601 and is located at one side of the anvil block 605, a cutter 607 is mounted on the cutter shaft 606, and the cutter 607 cooperates with the anvil block 605 to cut the edge protection material into a specified length;

the rotary table 614 is arranged on the support 601 and positioned at the discharging side of the anvil block 605, and the upper end and the lower end of the rotary table 614 are symmetrically provided with the transfer blocks 609;

a pulley 615 installed on the holder 601 and located at an end of the edge protector material in a proceeding direction;

a belt 618 wound around the turntable 614 and the pulley 615;

the transmission plate 608 is arranged on the support 601 and is connected with the discharging side of the anvil block 605, the transmission plate 608 is provided with a circular arc-shaped working surface, and the radius of the circular arc-shaped working surface is matched with the rotation radius of the transmission block 609;

the material folding plate 610 is connected to the discharge end of the transfer plate 608 and is in contact fit with the flat section of the belt 618, and the thickness of the material folding plate 610 is smaller than the width of the belt 618;

a material guide seat 613, which is mounted on the support 601 and located at the tail of the material folding plate 610, wherein a through groove for the belt 618 to pass through is arranged on the material guide seat 613;

an upper guide plate 611 and a lower guide plate 612, which are installed on the guide seat 613 and located at the outlet of the through groove, wherein the upper guide plate 611 and the lower guide plate 612 are symmetrical to the upper and lower sides of the belt 618;

an ultrasonic welding head 616 mounted on the frame 1 and located at the discharge ends of the upper guide plate 611 and the lower guide plate 612;

a rotating shaft 617 rotatably disposed above the ultrasonic welding head 616, the rotating shaft 617 having a welding compact 619 mounted thereon.

Further, a first buffer device 8 is arranged between the first traction roller set 7 and the hot press forming device 9, the first buffer device 8 comprises two fixed guide rollers 801 which are rotatably arranged, and a floating guide roller 802 which can move up and down is arranged below the fixed guide rollers 801.

Further, the floating guide roller 802 is mounted on a sliding seat 804, the sliding seat 804 is mounted on a vertically arranged wire rail 803, the sliding seat 804 is connected with a synchronous belt 805, and the synchronous belt 805 is driven to reciprocate by a servo motor 806.

Further, a second buffer device 10 is further disposed between the hot press forming device 9 and the second traction roller set 11, and the second buffer device 10 has the same structure as the first buffer device 8.

Further, the discharge end of the cutting device 12 is connected with a large conveyer belt 13.

Further, a guide roller 15 is provided between the laminating roller 14 and the first welding bead portion device 6.

Further, the hot press forming device further comprises a pull rod 903, wherein the upper end of the pull rod 903 is connected with the male die 901, the lower end of the pull rod 903 slides through the edge of the lower die plate 902 to extend into the frame 1, the lower end of the pull rod 903 is connected with a power source, and the power source is used for driving the pull rod 903 to move up and down so as to link the male die 901 to move up and down.

The utility model has the beneficial effects that: the utility model provides a boot sleeve machine, which is provided with a first unreeling device for unreeling a film I and a second unreeling device for unreeling a film II, wherein the first unreeling device and the second unreeling device respectively wrap the first rubber band and the second rubber band into the same side edge parts of the corresponding film I and the film II to be output to a folding roller to be overlapped together to form a double-layer film structure, the welding and edge protecting part device outputs the double-layer film structure output by the folding roller to the folding roller at a spacing of one side, which is wrapped with the first rubber band and the second rubber band, the first traction roller group pulls and conveys the double-layer film structure which is welded with the upper edge protecting strip, the working part of a male die is matched with a lower die plate at the hot press forming device to weld the double-layer film structure output by the first traction roller group according to the boot sleeve shape to a specified width to form a connected boot sleeve blank, the second traction roller group carries the boot sleeve blank, and then the cutting device cuts the boot sleeve from the connected boot sleeve, the cut boot sleeve and the edge are output by a large conveying belt, the boot sleeve and the finished boot sleeve is separated from the waste boot sleeve, and the waste boot sleeve is produced automatically in a high-quality, and the automatic production efficiency.

Drawings

Fig. 1 is a perspective view of the present utility model.

Fig. 2 is a partial enlarged view of fig. 1 at a.

Fig. 3 is a schematic view of a partial structure of a cutter shaft and a cutter according to the present utility model.

Fig. 4 is a schematic view in longitudinal section of the present utility model.

Fig. 5 is a schematic structural view of the elastic band releasing device of the present utility model.

FIG. 6 is a schematic view of a weld bead unit according to the present utility model.

FIG. 7 is a schematic view of the process steps of the present utility model for producing a boot strap.

FIG. 8 is a schematic view of the finished boot strap produced by the present utility model.

Fig. 9 is a schematic diagram of a molding step of the edge strip according to the present utility model.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 9, a boot sleeving machine includes a frame 1, and the frame 1 is provided with: unreeling device, rubber band unreeling device, laminating roller 14, welding safe edge part device 6, first traction roller group 7, hot press forming device 9, second traction roller group 11, cutting device 12, specifically:

the rubber band unwinding device comprises a first rubber band unwinding device 4 and a second rubber band unwinding device 5 which are respectively connected behind the first unwinding device 2 and the second unwinding device 3, and the first rubber band unwinding device 4 and the second rubber band unwinding device 5 are used for respectively wrapping the first rubber band 18 and the second rubber band 21 into the same side edge part of the corresponding first film 16 and the corresponding second film 17;

the edge-protecting welding part device 6 is arranged at the output end of the laminating roller 14 and is used for welding an upper edge-protecting strip 19 on one side of the double-layer film structure which is output by the laminating roller 14 and is wrapped with a first rubber band 18 and a second rubber band 21 at intervals;

the first traction roller set 7 is arranged behind the welding and edge protecting part device 6 and is used for traction of the double-layer film structure;

the hot press forming device 9 comprises a lower template 902 fixedly arranged on the frame 1 and a male die 901 which can be movably arranged above the lower template 902 up and down, wherein the lower end of the male die 901 is provided with a working part which is matched with the shape of the boot 20, the male die 901 is provided with an electric heating device 904, and the working part of the male die 901 is matched with the lower template 902 to weld a double-layer film structure output by the first traction roller group 7 according to the shape of the boot 20 to form a conjoined boot sleeve blank with a specified width;

the cutting device 12 is disposed behind the second traction roller set 11, and is used for cutting the boot 20 from the conjoined boot sleeve blank, wherein the cutting device 12 is generally in a circular pressing and circular die cutting structure.

As a preferred embodiment, the first elastic band device 4 comprises: the wall plate 405, the welding wheel 403, the edge folding plate 401 and the rubber band leading-in wheel 404 are connected with the frame 1, and the wall plate 405 is used for rotatably supporting the pressure-bearing roller 402; the welding wheel 403 is arranged above the pressure bearing roller 402, and an electric heating structure is arranged in the welding wheel 403; the edge folding plate 401 is arranged at the feeding end of the welding wheel 403 and the pressure-bearing roller 402 and is used for inwards folding the 16 edge part of the film to a specified width to form a folding layer; the rubber band guiding wheel 404 is arranged at the feeding end of the folding plate 401 and is used for guiding the first rubber band 18 into the folded layer at the 16-edge part of the film; the welding wheel 403 is matched with the pressure-bearing roller 402 to heat-press weld the folding layer so that the first rubber band 18 is wrapped in the folding layer; here, the second rubber band placing device 5 and the first rubber band placing device 4 have the same structure for wrapping the second rubber band 21 in the folded layer of the second film 17, where the second rubber band placing device 5 and the first rubber band placing device 4 are mounted on the frame 1 in a back-to-back manner, and the first rubber band placing device 4 is disposed below the second rubber band placing device 5 in order to reduce the length of the whole machine.

As a preferred embodiment, the welding bead portion device 6 is provided with two welding bead portions at a distance from each other in the two-layer film structure, each of which includes: the support 601, the guide wheel 602, the small conveyer belt 603, the small pressing wheel 604, the anvil 605, the cutter shaft 606, the turntable 614, the belt wheel 615, the belt 618, the transfer plate 608, the folding plate 610, the material guide seat 613, the upper material guide plate 611, the lower material guide plate 612, the ultrasonic welding head 616 and the rotating shaft 617, and the support 601 is connected with the frame 1; the guide wheel 602 is mounted on the support 601 for guiding the advancing of the edge protecting material; the small conveying belt 603 is arranged on the discharging side of the guide wheel 602; the small pressing wheel 604 is arranged in a matching way with the small conveying belt 603; the anvil block 605 is arranged on the support 601 and positioned at the discharge end of the small conveying belt 603, and the small pressing wheel 604 is matched with the small conveying belt 603 to convey the edge protection material to the anvil block 605; a cutter shaft 606 is arranged on the support 601 and positioned on one side of the anvil block 605, a cutter 607 is arranged on the cutter shaft 606, and the cutter 607 is matched with the anvil block 605 to cut off the edge-protecting material into a specified length; the rotary table 614 is arranged on the support 601 and positioned on the discharging side of the anvil block 605, and the upper and lower ends of the rotary table 614 are symmetrically provided with the transfer blocks 609, wherein the transfer blocks 609 are made of elastic materials, such as rubber blocks or polyurethane blocks;

the belt wheel 615 is installed on the support 601 and is positioned at the tail end of the edge protection material in the proceeding direction; belt 618 is wound around turntable 614 and pulley 615; the transfer plate 608 is arranged on the support 601 and is connected with the discharging side of the anvil block 605, the transfer plate 608 is provided with a circular arc-shaped working surface, and the radius of the circular arc-shaped working surface is matched with the rotation radius of the transfer block 609; the material folding plate 610 is connected to the discharging end of the transfer plate 608 and is in contact fit with the flat section of the belt 618, and the thickness of the material folding plate 610 is smaller than the width of the belt 618;

the material guide seat 613 is arranged on the support 601 and positioned at the tail part of the material folding plate 610, and a through groove for the belt 618 to pass through is arranged on the material guide seat 613; the upper guide plate 611 and the lower guide plate 612 are arranged on the guide seat 613 at the outlet of the through groove, wherein the upper guide plate 611 and the lower guide plate 612 are symmetrical to the upper side and the lower side of the belt 618;

the ultrasonic welding head 616 is arranged on the frame 1 and positioned at the discharge ends of the upper guide plate 611 and the lower guide plate 612; the rotating shaft 617 is rotatably arranged above the ultrasonic welding head 616, and a welding press block 619 is arranged on the rotating shaft 617;

through the arrangement, the small pressing wheel 604, the small conveying belt 603, the cutter shaft 606 and the rotary table 614 are driven by power sources, wherein the power sources are usually motors and an adaptive transmission system, the cutter shaft 606 cuts off the edge protection material entering the anvil 605 once every rotation of the cutter shaft 606, the edge protection material can be cut in different lengths by matching the running speeds of the small conveying belt 603 and the cutter shaft 606, the cut edge protection material is pulled into the conveying plate 608 by friction force to advance at the same speed with the belt 618 by the outer wall of the conveying block 609, the edge protection material is separated from the circular arc-shaped working surface of the conveying plate 608 when being driven by the conveying block 609 and the belt 618 to reach the edge protection plate 610, the edge protection material is bent towards the edge protection plate 610 along with the upper half width of the edge protection material under the elastic recovery action of the conveying block 609 as shown in fig. 9, the bent edge protection material is pressed on the side of the edge protection plate 610 along with the belt 618, the lower half width of the edge protection material is also cut into the material plate 610 when entering the through groove of the guide block 613, and then the second welding piece 19 is formed by welding the two layers of thin film holding pieces of the upper edge protection plate 611 and the lower edge protection plate 612 and the second rubber band 19, and the second rubber band 19 are firmly welded together; through the speed matching of the welding bead part device 6 and the first traction roller set 7, the bead strips 19 can be welded on one side of the first rubber band 18 and the second rubber band 21 with double-layer film structures according to set intervals, and the welding of the two bead strips 19 can be completed at one time, so that the production efficiency is high, and the bead materials are usually the same material or non-woven fabric material as the boot sleeve 20.

As a preferred embodiment, a first buffer device 8 is arranged between the first traction roller set 7 and the hot press forming device 9, the first buffer device 8 comprises two fixed guide rollers 801 which are rotatably arranged, and a floating guide roller 802 which can move up and down is arranged below the fixed guide rollers 801.

As a preferred embodiment, the floating guide roller 802 is mounted on a slide 804, the slide 804 is mounted on a vertically arranged wire track 803, the slide 804 is connected with a synchronous belt 805, and the synchronous belt 805 is driven to reciprocate by a servo motor 806.

Through the arrangement, when the male die 901 of the hot press forming device 9 is pressed with the lower die plate 902 to form a boot sleeve blank, the servo motor 806 drives the synchronous belt 805 to drive the sliding seat 804 to move downwards to drive the floating guide roller 802 to move downwards for buffering, the tension of the double-layer film structure is kept stable, and the servo motor 806 controls the rotating direction and the rotating number of turns by the tension sensor and the electric control system of the double-layer film structure to control the ascending or descending of the floating guide roller 802 and the ascending or descending distance of the floating guide roller 802 under the normal condition.

As a preferred embodiment, a second buffer device 10 is further disposed between the hot press forming device 9 and the second traction roller set 11, the second buffer device 10 and the first buffer device 8 have the same structure, through the above arrangement, when the male die 901 is separated from the lower die plate 902 after the forming of the boot blank is completed, the servo motor 806 drives the synchronous belt 805 to drive the sliding seat 804 to move downwards so as to drive the floating guide roller 802 to move downwards and the traction speed of the second traction roller set 11 to synthesize and rapidly pull the formed integral boot blank in the hot press forming device 9 out of the hot press forming device 9, at this time, under the control of the complete machine electric control system, the floating guide roller 802 of the first buffer device 8 moves upwards to release the double-layer film structure into the hot press forming device 9, and when the hot press forming device 9 performs forming work, the floating guide roller 802 of the second buffer device 10 moves upwards to release the buffered integral boot blank, such as guiding circulation.

As a preferred embodiment, the discharging end of the cutting device 12 is connected with a large conveying belt 13 for outputting the cut boot sleeve 20 and the slitter edges, and the finished boot sleeve 20 and the slitter edges are separated by a subsequent process, so that the finished boot sleeve 20 is conveniently collected.

As a preferred embodiment, a guide roller 15 is provided between the laminating roller 14 and the first weld bead portion device 6 to stably guide the advance of the double film structure.

As a preferred embodiment, the hot press forming device further comprises a pull rod 903, wherein the upper end of the pull rod 903 is connected with the male die 901, the lower end of the pull rod 903 slides through the edge of the lower die plate 902 to extend into the frame 1, the lower end of the pull rod 903 is connected with a power source, and the power source is used for driving the pull rod 903 to move up and down so as to link the male die 901 to move up and down, wherein the power source can be a cylinder or a crank-link mechanism driven by a motor.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "top", "bottom", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The boot sleeve machine comprises a frame (1), and is characterized in that the frame (1) is sequentially provided with:

the unreeling device comprises a first unreeling device (2) for unreeling a first film (16) and a second unreeling device (3) for unreeling a second film (17), which are arranged in parallel;

the first rubber band unwinding device (4) and the second rubber band unwinding device (5) are respectively connected behind the first unwinding device (2) and the second unwinding device (3), and the first rubber band unwinding device (4) and the second rubber band unwinding device (5) are used for respectively wrapping the first rubber band (18) and the second rubber band (21) into the same side edge part of the corresponding first film (16) and the corresponding second film (17);

the laminating roller (14) is arranged behind the first rubber band placing device (4) and the second rubber band placing device (5) and is used for laminating the first film (16) and the second film (17) which are respectively wrapped with the first rubber band (18) and the second rubber band (21) and output by the first rubber band placing device (4) and the second rubber band placing device (5) together to form a double-layer film structure;

the welding edge protection part device (6) is arranged at the output end of the laminating roller (14) and is used for welding upper edge protection strips (19) at intervals on one side of the double-layer film structure which is output by the laminating roller (14) and is wrapped with a first rubber band (18) and a second rubber band (21);

the first traction roller set (7) is arranged behind the welding edge protection part device (6) and is used for traction of the double-layer film structure;

the hot press forming device (9) comprises a lower die plate (902) fixedly arranged on the frame (1) and a male die (901) capable of being movably arranged above the lower die plate (902) up and down, wherein the lower end of the male die (901) is provided with a working part matched with the appearance of a boot sleeve (20), the male die (901) is provided with an electric heating device (904), and the working part of the male die (901) is matched with the lower die plate (902) to weld the double-layer film structure output by the first traction roller set (7) to a specified width according to the appearance of the boot sleeve (20) to form a connected boot sleeve blank;

the second traction roller set (11) is arranged behind the hot press forming device (9) and is used for traction of the conjoined boot sleeve blank;

and the cutting device (12) is arranged behind the second traction roller set (11) and is used for cutting the boot sleeve (20) from the conjoined boot sleeve blank.

2. A boot machine according to claim 1, characterized in that the first rubber band-laying device (4) comprises:

the wallboard (405) is connected with the frame (1) and is used for rotatably supporting the pressure-bearing roller (402);

the welding wheel (403) is arranged above the pressure-bearing roller (402), and an electric heating structure is arranged in the welding wheel (403);

a folding plate (401) arranged at the feeding end of the welding wheel (403) and the pressure-bearing roller (402) and used for inwards folding the edge of the first film (16) by a specified width to form a folding layer;

a rubber band guiding wheel (404) arranged at the feeding end of the folding plate (401) and used for guiding the first rubber band (18) into the folding layer at the edge part of the first film (16);

the welding wheel (403) is matched with the pressure-bearing roller (402) and used for carrying out thermocompression bonding on the folding layer so as to enable the first rubber band (18) to be wrapped in the folding layer;

the second rubber band placing device (5) and the first rubber band placing device (4) have the same structure and are used for wrapping the second rubber band (21) in the folding layer of the second film (17).

3. A boot machine according to claim 1, characterized in that the welding bead arrangement (6) is arranged with two in the direction of the double-layer film structure, both comprising:

the support (601) is connected with the frame (1);

a guide wheel (602) mounted on the support (601) for guiding the advancing of the edge protection material;

the small conveying belt (603) is arranged on the discharging side of the guide wheel (602);

a small pressing wheel (604) which is matched with the small conveying belt (603);

the anvil block (605) is arranged on the support (601) and positioned at the discharge end of the small conveying belt (603), and the small pressing wheel (604) is matched with the small conveying belt (603) to convey the edge protection material to the anvil block (605);

a cutter shaft (606) which is arranged on the support (601) and positioned at one side of the anvil block (605), a cutter (607) is arranged on the cutter shaft (606), and the cutter (607) is matched with the anvil block (605) to cut off the edge protection material into a specified length;

the rotary table (614) is arranged on the support (601) and positioned on the discharging side of the anvil block (605), and the upper end and the lower end of the rotary table (614) are symmetrically provided with the transfer blocks (609);

a pulley (615) mounted on the support (601) and located at the end of the edge-protecting material in the proceeding direction;

a belt (618) wound around the turntable (614) and the pulley (615);

the transmission plate (608) is arranged on the support (601) and is connected with the discharging side of the anvil block (605), the transmission plate (608) is provided with a circular arc-shaped working surface, and the radius of the circular arc-shaped working surface is matched with the rotation radius of the transmission block (609);

the material folding plate (610) is connected to the discharge end of the transfer plate (608) and is in contact fit with the straight section of the belt (618), and the thickness of the material folding plate (610) is smaller than the width of the belt (618);

the material guide seat (613) is arranged on the support (601) and positioned at the tail part of the material folding plate (610), and a through groove for the belt (618) to pass through is formed in the material guide seat (613);

an upper material guide plate (611) and a lower material guide plate (612) are arranged on the material guide seat (613) and positioned at the outlet of the through groove, and the upper material guide plate (611) and the lower material guide plate (612) are symmetrical to the upper side and the lower side of the belt (618);

the ultrasonic welding head (616) is arranged on the frame (1) and is positioned at the discharge ends of the upper guide plate (611) and the lower guide plate (612);

the rotating shaft (617) is rotatably arranged above the ultrasonic welding head (616), and the welding press block (619) is arranged on the rotating shaft (617).

4. The boot sleeve machine according to claim 1, wherein a first buffer device (8) is arranged between the first traction roller set (7) and the hot press forming device (9), the first buffer device (8) comprises two fixed guide rollers (801) which are rotatably arranged, and a floating guide roller (802) which can move up and down is arranged below the fixed guide rollers (801).

5. The shoe machine according to claim 4, wherein the floating guide roller (802) is mounted on a slide (804), the slide (804) is mounted on a vertically arranged wire rail (803), the slide (804) is connected with a synchronous belt (805), and the synchronous belt (805) is driven to reciprocate by a servo motor (806).

6. Boot machine according to claim 4, characterized in that a second buffer device (10) is further arranged between the hot press forming device (9) and the second traction roller set (11), the second buffer device (10) having the same structure as the first buffer device (8).

7. A boot machine according to claim 1, characterized in that the discharge end of the cutting device (12) is provided with a large conveyor belt (13).

8. A boot machine according to claim 3, characterized in that a guide roller (15) is provided between the laminating roller (14) and the first of the weld bead means (6).

9. The boot strap machine according to claim 1, wherein the hot press forming device further comprises a pull rod (903), the upper end of the pull rod (903) is connected with the male die (901), the lower end of the pull rod (903) slides through the edge of the lower die plate (902) to extend into the frame (1), the lower end of the pull rod (903) is connected with a power source, and the power source is used for driving the pull rod (903) to move up and down so as to link the male die (901) to move up and down.