Rain-proof shoe cover heat sealing device

Abstract

This invention relates to the field of rainproof shoe cover manufacturing, and more particularly to a heat-sealing device for rainproof shoe covers. The invention provides a heat-sealing device for rainproof shoe covers that prevents seams from forming. A rainproof shoe cover heat-sealing device includes a support frame, a placement frame, a pressure plate, a connecting frame, an electric push rod, and a heater. The placement frame is connected to the upper side of the support frame, and the connecting frame is connected to the upper rear part of the support frame. The electric push rod is connected to the middle part of the connecting frame, and the pressure plate is connected to the telescopic rod of the electric push rod. The heater is connected to the outer wall of the pressure plate. The device also includes an edge-sealing mechanism and a pressing mechanism. The edge-sealing mechanism is provided on the outer shell of the electric push rod, and the pressing mechanism is provided on the connecting frame. This invention uses rollers to roll and heat-seal the edges of the rainproof shoe cover, preventing seams from forming after heat sealing, thus improving the waterproofness of the rainproof shoe cover. Simultaneously, the expansion of an air bladder allows for further pressing of the edges of the rainproof shoe cover, thereby improving the heat-sealing effect.

Description

Technical Field

[0001] This invention relates to the field of rainproof shoe cover manufacturing, and more particularly to a heat-sealing device for rainproof shoe covers. Background Technology

[0002] During the manufacturing process of rainproof shoe covers, a heat-sealing device is usually used to heat-seal the sole and upper of the shoe.

[0003] Patent publication number CN203969451U discloses: a heat-sealing device for rainproof shoe covers, comprising: a high-frequency machine, a bottom mold, and a mold placement groove in the middle; an inner mold, the lower part of which is placed in the mold placement groove, and the upper part of which is a protrusion; at least one outer mold, the front end of which is engaged with the lower periphery of the inner mold.

[0004] In the aforementioned patent, the sole and upper of the rainproof shoe cover are clamped together by combining an inner mold and an outer mold. Then, the outer mold, in conjunction with a high-frequency machine, presses the sole of the rainproof shoe cover together. Afterward, a cylinder drives the inner mold to move inward, squeezing the upper. This completes the heat sealing of the rainproof shoe cover. During the heat sealing process, due to the gaps between the outer molds, there may be seams in the pressed upper, resulting in poor sealing effect and poor waterproof performance of the rainproof shoe cover. Therefore, a heat sealing device for rainproof shoe covers that can prevent seams from occurring is now being developed. Summary of the Invention

[0005] In order to overcome the shortcomings of existing technologies that result in seams on rainproof shoe covers after heat sealing, leading to poor waterproof performance, this invention provides a heat sealing device for rainproof shoe covers that can prevent seams from occurring.

[0006] A heat-sealing device for rainproof shoe covers includes a support frame, a placement frame, a pressure plate, a connecting frame, an electric push rod, and a heater. The placement frame is connected to the upper side of the support frame, and the connecting frame is connected to the upper rear side of the support frame. The electric push rod is connected to the middle of the connecting frame, and the pressure plate is connected to the telescopic rod of the electric push rod. The heater is connected to the outer wall of the pressure plate. The device also includes an edge-sealing mechanism and an extrusion mechanism. The edge-sealing mechanism is provided on the outer shell of the electric push rod, and the extrusion mechanism is provided on the connecting frame.

[0007] Preferably, the edge sealing mechanism includes an electric slide rail, a sliding component, a pulling component, a tension spring, a limiting component, a swing component, and a roller. The electric slide rail is connected to the lower side of the outer shell of the electric push rod. The sliding component is slidably connected to the electric slide rail. The pulling component is slidably connected to the lower right side of the sliding component. A tension spring is connected between the pulling component and the lower right side of the sliding component. The tension spring is wound around the pulling component. The swing component is rotatably connected to the left side of the pulling component through a damping sleeve. A roller is rotatably connected to the swing component. The outer wall of the roller is covered with a rubber sleeve. The limiting component is slidably connected to the lower right side of the sliding component through a damping sleeve.

[0008] Preferably, the extrusion mechanism includes a connector, an air bladder, an air cylinder, a piston rod, and a compression spring. The connector is connected to both the left and right sides of the lower middle part of the connecting frame. An air bladder is connected between the lower inner sides of the connector. An air cylinder is connected to the lower left part of the right connector. The air cylinder and the air bladder are connected. A piston rod is slidably connected to the air cylinder. The swinging part and the front side of the piston rod are squeezed together. A compression spring is connected between the piston rod and the front side of the air cylinder. The compression spring is wound around the piston rod.

[0009] Preferably, the device also includes a swing mechanism, which includes a lower concave-convex bracket, a pressing rod, a first torsion spring, and an upper concave-convex bracket. The first torsion spring is connected between the swing member and the pulling member. The first torsion spring is wound around the right side of the swing member. The pressing rod is connected to the upper right side of the swing member. The upper concave-convex bracket is connected to the lower side of the electric slide rail. The lower concave-convex bracket is connected to the outer wall of the electric slide rail. The lower part of the lower concave-convex bracket is located below the upper concave-convex bracket. Both the upper and lower concave-convex brackets are pressed together with the pressing rod.

[0010] Preferably, a striking mechanism is also included, comprising a swing frame, a connecting rod, a striking element, and a second torsion spring. The swing frame is connected to both the left and right sides of the upper side of the electric slide rail. The connecting rod is connected to both the front and rear sides of the upper right part of the sliding element. The striking element is rotatably connected between the right sides of the connecting rod. The second torsion spring is connected between the front and rear parts of the striking element and the outer side of the connecting rod. The second torsion spring is wound around the striking element. A pressing block is connected to the upper side of the striking element. The rear side of the pressing block is inclined, and the rear side of the pressing block is pressed and engaged with the swing frame.

[0011] Preferably, a clamping mechanism is also included, which includes clamping elements, pressure springs and adapting components. Two clamping elements are slidably connected to the upper part of the support frame. The two clamping elements are symmetrically arranged on the left and right sides. Pressure springs are connected between the front and rear parts of the lower outer side of the clamping elements and the support frame. The pressure springs are all wound around the support frame. An adapting component is provided on the upper part of the clamping elements.

[0012] Preferably, the adaptation component includes an adaptation element, a clamping block, a third torsion spring, and a buffer spring. The adaptation element is slidably connected to both the front and rear sides of the upper part of the clamping element. A buffer spring is connected between the adaptation element and the outer side of the upper part of the clamping element. The buffer springs are all wound around the adaptation element. The clamping block is rotatably connected to the inner side of the adaptation element. A third torsion spring is connected between the clamping block and the adaptation element. The third torsion springs are all wound around the clamping block.

[0013] Preferably, it also includes a pressing mechanism, which includes a support block, a threaded rod, and a pressing frame. The support block is connected to the upper front side of the pressing plate, the threaded rod is threadedly connected to the middle of the support block, and the pressing frame is rotatably connected to the lower side of the threaded rod. The lower side of the pressing frame is an arc surface, and the pressing frame and the support block are slidably connected.

[0014] The present invention has the following advantages: 1. The present invention uses rollers to roll and heat seal the edges of the rainproof shoe cover, and there will be no seam after heat sealing, thereby improving the waterproofness of the rainproof shoe cover. At the same time, the air bladder expands and can press the edges of the rainproof shoe cover again, thereby improving the heat sealing effect.

[0015] 2. The present invention, through the cooperation between the lower concave-convex frame, the first torsion spring and the upper concave-convex frame, enables the roller to repeatedly swing up and down when heat sealing the edge of the rainproof shoe cover, so that the edge of the rainproof shoe cover can also be heat sealed, thereby enhancing the heat sealing effect.

[0016] 3. The present invention uses a striking component to strike the pulling component, which can apply an inward force to the pulling component, the swinging component and the roller, thereby enhancing the force during roller heat sealing and further improving the heat sealing effect.

[0017] 4. The present invention can clamp and fix the rainproof shoe cover by moving the clamping part, the adapting part and the clamping block inward, thereby improving the stability of the rainproof shoe cover during heat sealing and making it easier for people to carry out heat sealing work.

[0018] 5. By moving the pressure frame downwards, the present invention can heat-seal the toe of the sole of the rainproof shoe cover, thereby further enhancing the heat-sealing effect. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0020] Figure 2 This is a schematic diagram of the first partial three-dimensional structure of the present invention.

[0021] Figure 3 This is a schematic diagram of the second partial three-dimensional structure of the present invention.

[0022] Figure 4 This is a schematic diagram of the first three-dimensional structure of the edge sealing mechanism of the present invention.

[0023] Figure 5 This is a schematic diagram of a second three-dimensional structure of the edge-sealing mechanism of the present invention.

[0024] Figure 6 This is a partial three-dimensional structural diagram of the edge-sealing mechanism of the present invention.

[0025] Figure 7 This is a schematic diagram of the first three-dimensional structure of the extrusion mechanism of the present invention.

[0026] Figure 8 This is a schematic diagram of a second three-dimensional structure of the extrusion mechanism of the present invention.

[0027] Figure 9 This is a partial three-dimensional structural schematic diagram of the extrusion mechanism of the present invention.

[0028] Figure 10 This is a three-dimensional structural diagram of the swing mechanism of the present invention.

[0029] Figure 11 This is a partial three-dimensional structural schematic diagram of the swing mechanism of the present invention.

[0030] Figure 12 This is a three-dimensional structural diagram of the lower and upper concave-convex brackets of the present invention.

[0031] Figure 13 This is a three-dimensional structural diagram of the striking mechanism of the present invention.

[0032] Figure 14 This is a schematic diagram of the first partial three-dimensional structure of the striking mechanism of the present invention.

[0033] Figure 15 This is a schematic diagram of the second part of the striking mechanism of the present invention.

[0034] Figure 16 This is a three-dimensional structural diagram of the clamping mechanism of the present invention.

[0035] Figure 17 This is a partial three-dimensional structural diagram of the clamping mechanism of the present invention.

[0036] Figure 18 This is a three-dimensional structural diagram of the lifting mechanism of the present invention.

[0037] Explanation of reference numerals in the attached drawings: 1: Support frame, 2: Placement frame, 21: Pressure plate, 22: Connecting frame, 23: Electric push rod, 24: Heater, 3: Sealing mechanism, 31: Electric slide rail, 32: Sliding component, 33: Pulling component, 34: Tension spring, 35: Limiting component, 36: Swinging component, 37: Roller, 4: Extrusion mechanism, 41: Connecting component, 42: Airbag, 43: Air cylinder, 44: Piston rod, 45: Compression spring, 5: Swinging mechanism, 5 1: Lower concave-convex bracket; 52: Extrusion rod; 53: First torsion spring; 54: Upper concave-convex bracket; 6: Striking mechanism; 61: Swinging frame; 62: Connecting rod; 63: Striking element; 64: Second torsion spring; 65: Extrusion block; 7: Clamping mechanism; 71: Clamping element; 72: Adaptive element; 73: Clamping block; 74: Third torsion spring; 75: Buffer spring; 76: Pressure spring; 8: Lower pressing mechanism; 81: Support block; 82: Threaded rod; 83: Lower pressing frame. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings. It is hereby declared that the directional terms such as up, down, left, right, front, back, inside, and outside used in this text are based solely on the accompanying drawings and are not intended to specifically limit the invention.

[0039] Example 1

[0040] A heat-sealing device for rainproof shoe covers, such as Figure 1 , Figure 2 and Figure 3 As shown, it includes a support frame 1, a placement frame 2, a pressure plate 21, a connecting frame 22, an electric push rod 23, a heater 24, an edge sealing mechanism 3, and an extrusion mechanism 4. The placement frame 2 is connected to the upper side of the support frame 1. The connecting frame 22 is fixed to the upper rear part of the support frame 1. The electric push rod 23 is installed in the middle of the connecting frame 22. The pressure plate 21 is connected to the telescopic rod of the electric push rod 23. The heater 24 is connected to the outer wall of the pressure plate 21. The edge sealing mechanism 3 is provided on the outer shell of the electric push rod 23. The edge sealing mechanism 3 can automatically press the shoe edge. The extrusion mechanism 4 is provided on the connecting frame 22.

[0041] like Figure 2 , Figure 4 , Figure 5 and Figure 6 As shown, the edge sealing mechanism 3 includes an electric slide rail 31, a sliding member 32, a pulling member 33, a tension spring 34, a limiting member 35, a swing member 36, and a roller 37. The electric slide rail 31 is connected to the lower side of the housing of the electric push rod 23. The sliding member 32 is slidably connected to the electric slide rail 31. The pulling member 33 is slidably connected to the lower right part of the sliding member 32. The tension spring 34 is connected between the pulling member 33 and the lower right side of the sliding member 32. The tension spring 34 is wound around the pulling member 33. The left side of the pulling member 33 is rotatably connected to the swing member 36 through a damping sleeve. The roller 37 is rotatably connected to the swing member 36. The outer wall of the roller 37 is covered with a rubber sleeve. The limiting member 35 is slidably connected to the lower right side of the sliding member 32 through a damping sleeve.

[0042] like Figure 2 , Figure 7 , Figure 8 and Figure 9As shown, the extrusion mechanism 4 includes a connector 41, an air bladder 42, an air cylinder 43, a piston rod 44, and a compression spring 45. There are two connectors 41, which are fixed to the left and right sides of the lower middle part of the connecting frame 22, respectively. The air bladder 42 is installed between the lower inner sides of the connector 41. The lower left part of the right connector 41 is connected to the air cylinder 43, and the air cylinder 43 and the air bladder 42 are connected. The piston rod 44 is slidably connected to the air cylinder 43. The swing member 36 and the front side of the piston rod 44 are squeezed together. The compression spring 45 is connected between the piston rod 44 and the front side of the air cylinder 43, and the compression spring 45 is wound around the piston rod 44.

[0043] When using this rainproof shoe cover heat sealing device, first pull the pull member 33 to the right, which will then drive the swing member 36 and roller 37 to move to the right. Simultaneously, the tension spring 34 is stretched. Then, manually place the rainproof shoe cover with the sole facing upwards on the placement rack 2. At this time, the sole of the rainproof shoe cover is located in the air bladder 42, but a gap remains between the sole of the rainproof shoe cover and the pressure plate 21. Next, release the pull member 33. Under the action of the tension spring 34, the pull member 33, swing member 36, and roller 37 move to the left. At this time, the roller 37 contacts the edge of the rainproof shoe cover. Then, turn on the heater 24 to heat the sole of the rainproof shoe cover, but the heating temperature will not be very high. Finally, turn on the electric push rod 23 to extend its telescopic rod. The movement causes the pressure plate 21 to move downwards, pressing it against the sole of the rainproof shoe cover. This heat-seales the sole. Once the sole is heat-sealed, the electric push rod 23 retracts, causing the pressure plate 21 to move upwards. Then, the electric slide rail 31 is activated, and the sliding member 32 slides one revolution on it. The sliding member 32 also drives the pulling member 33, the swinging member 36, and the roller 37 to slide on the electric slide rail 31. This allows the roller 37 to press against the edge of the rainproof shoe cover, achieving heat-sealing. Since the edge heat-sealing is done by a single roller 37, the rainproof shoe cover... The edges of the shoe cover will not have seams, which improves the heat-sealing effect. After the heat sealing of the shoe edge of the rainproof shoe cover is completed, the sliding member 32 is driven by the electric slide rail 31 to slide in the opposite direction once, so that the sliding member 32 returns to its original position. At this time, the sliding member 32 will also drive the pulling member 33, the swinging member 36 and the roller 37 to slide in the opposite direction on the electric slide rail 31 to return to their original position. This can roll the shoe edge of the rainproof shoe cover again. Then, the heater 24 is turned off, and then the pulling member 33, the swinging member 36 and the roller 37 are manually pulled to the right, so that the swinging member 36 is directly in front of the piston rod 44. Then, the limiting member 35 is manually pressed down, so that the limiting member 35 is inserted into the pulling member 33, thus limiting the rightward movement of the pulling member 33. Then, the swinging component 36 is driven to move backward, causing it to press the piston rod 44 backward. This compresses the compression spring 45, and the piston rod 44 inflates the air bladder 42 via the air pump 43. The inflated air bladder 42 then presses against the edge of the rainproof shoe cover, further enhancing the heat-sealing effect. When the air bladder 42 is no longer needed to press against the edge of the rainproof shoe cover, the swinging component 36 is moved forward, ceasing to press against the piston rod 44. Under the action of the compression spring 45, the piston rod 44 moves forward, and at this time, it also deflates the air bladder 42 via the air pump 43. This completes the entire heat-sealing process.The heat-sealed rainproof shoe covers can then be manually removed. In summary, the rainproof shoe covers can be heat-sealed without any seams, thus improving their waterproofness.

[0044] Example 2

[0045] Based on Example 1, such as Figure 2 , Figure 10 , Figure 11 and Figure 12 As shown, it also includes a swing mechanism 5, which includes a lower concave-convex bracket 51, a pressing rod 52, a first torsion spring 53, and an upper concave-convex bracket 54. The first torsion spring 53 is connected between the swing member 36 and the pulling member 33 and is wound around the right side of the swing member 36. The pressing rod 52 is connected to the upper right side of the swing member 36. The lower side of the electric slide rail 31 is connected to the upper concave-convex bracket 54, and the lower concave-convex bracket 51 is connected to the outer wall of the electric slide rail 31. The lower part of the lower concave-convex bracket 51 is located below the upper concave-convex bracket 54. Both the upper concave-convex bracket 54 and the lower concave-convex bracket 51 are pressed together with the pressing rod 52.

[0046] When the swinging member 36 moves along the electric slide rail 31, it also drives the pressing rod 52 to move along the electric slide rail 31. When the pressing rod 52 moves between the lower concave and convex brackets 51 and the upper concave and convex brackets 54 and continues to move, under the pressure of the lower concave and convex brackets 51 and the upper concave and convex brackets 54, the swinging member 36 drives the roller 37 to swing up and down. As a result, the first torsion spring 53 undergoes adaptive deformation, which can improve the heat sealing effect of the edge of the rainproof shoe cover. Subsequently, when the swinging member 36 moves back to its original position along the electric slide rail 31, it also drives the pressing rod 52 to move back to its original position along the electric slide rail 31. In summary, the roller 37 can swing up and down, so that the edge of the rainproof shoe cover can also be heat sealed, thereby strengthening the heat sealing effect.

[0047] like Figure 2 , Figure 13 , Figure 14 and Figure 15 As shown, it also includes a striking mechanism 6, which includes a swing frame 61, a connecting rod 62, a striking element 63, and a second torsion spring 64. There are two swing frames 61, which are fixed to the left and right sides of the upper side of the sliding member 32, respectively. There are two connecting rods 62, which are connected to the front and rear sides of the upper right side of the sliding member 32, respectively. The striking element 63 is rotatably connected between the right sides of the connecting rods 62. There are two second torsion springs 64, which are connected to the front and rear sides of the striking element 63 and the outer side of the connecting rods 62, respectively. The second torsion springs 64 are all wound around the striking element 63. A pressing block 65 is connected to the upper side of the striking element 63. The rear side of the pressing block 65 is a slope, and the rear side of the pressing block 65 is pressed and engaged with the swing frame 61.

[0048] When the sliding member 32 slides on the electric slide rail 31, the sliding member 32 also drives the striking member 63 and the pressing block 65 to move along the electric slide rail 31 through the connecting rod 62. When the pressing block 65 moves to contact the swing frame 61, under the pressure of the swing frame 61, the pressing block 65 will drive the striking member 63 to rotate, and the second torsion spring 64 will be twisted. Then, when the pressing block 65 moves away from the swing frame 61, under the action of the second torsion spring 64, the striking member 63 drives the pressing block 65 to rotate in the opposite direction. At this time, the striking member 63 will strike the pulling member 33 and apply an inward force to the pulling member 33. This can improve the heat sealing force of the roller 37 on the edge of the rainproof shoe cover. Then, when the sliding member 32 slides back to its original position on the electric slide rail 31, the sliding member 32 will also drive the striking member 63 and the pressing block 65 to move back to their original position along the electric slide rail 31 through the connecting rod 62. In summary, this can improve the effect of the roller 37 when performing heat sealing work.

[0049] like Figure 1 , Figure 16 and Figure 17 As shown, it also includes a clamping mechanism 7, which includes clamping members 71, pressure springs 76, and an adaptation component. There are two clamping members 71, which are slidably connected to the upper part of the support frame 1. The two clamping members 71 are symmetrically arranged on the left and right sides. There are four pressure springs 76, which are respectively connected to the front and rear parts of the lower outer side of the clamping member 71 and the support frame 1. The pressure springs 76 are all wound around the support frame 1. The adaptation component is located on the upper part of the clamping member 71.

[0050] like Figure 16 and Figure 17 As shown, the adaptation assembly includes an adaptation element 72, a clamping block 73, a third torsion spring 74, and a buffer spring 75. There are four adaptation elements 72, which are slidably connected to the front and rear sides of the upper part of the clamping element 71. There are four buffer springs 75, which are connected between the adaptation element 72 and the outer side of the upper part of the clamping element 71. The buffer springs 75 are all wound around the adaptation element 72. There are four clamping blocks 73, which are rotatably connected to the inner side of the adaptation element 72. A third torsion spring 74 is connected between the clamping block 73 and the adaptation element 72. The third torsion spring 74 is wound around the clamping block 73.

[0051] When heat-sealing rainproof shoe covers, the clamping mechanism 7 can be used to fix them in place. First, the clamping member 71 is moved outward, compressing the pressure spring 76. Then, the clamping member 71 moves the adapting member 72 and the clamping block 73 outward. The rainproof shoe covers can then be placed on the placement rack 2. After placement, the clamping member 71 is released. Under the action of the pressure spring 76, the clamping member 71 moves the adapting member 72 and the clamping block 73 inward. At this time, the clamping member 71 clamps the lower part of the rainproof shoe cover. When the adapting member 72 moves inward and contacts the upper part of the rainproof shoe cover, under the pressure of the rainproof shoe cover, the adapting member 72 and the clamping block 73 will... The clamping member 71 slides outward, thereby stretching the buffer spring 75 and causing the adapting member 72 to rotate according to the shape of the upper part of the rainproof shoe cover. The third torsion spring 74 is twisted, thus clamping and fixing the rainproof shoe cover and improving the stability of the rainproof shoe cover during heat sealing. After the rainproof shoe cover is heat sealed, the clamping member 71, the adapting member 72, and the clamping block 73 are moved outward again. When the adapting member 72 moves away from the rainproof shoe cover, under the action of the buffer spring 75, the adapting member 72 and the clamping block 73 will move inward on the upper part of the clamping member 71, and under the action of the third torsion spring 74, the clamping block 73 will also rotate in the opposite direction. In summary, the rainproof shoe cover can be stabilized during the heat sealing process.

[0052] like Figure 1 , Figure 2 and Figure 18 As shown, it also includes a pressing mechanism 8, which includes a support block 81, a threaded rod 82, and a pressing frame 83. The support block 81 is fixed to the upper front side of the pressure plate 21. The threaded rod 82 is threadedly connected to the middle of the support block 81. The pressing frame 83 is rotatably connected to the lower side of the threaded rod 82. The lower side of the pressing frame 83 is an arc surface. The pressing frame 83 and the support block 81 are slidably connected.

[0053] When heat-sealing the soles of rainproof shoe covers, the toe of the sole is curved, making it difficult for the pressure plate 21 to press down on it. In this case, the pressing mechanism 8 can be used. First, manually rotate the threaded rod 82, causing it to move the pressing frame 83 downwards, which then presses down on the toe of the sole, thus heat-sealing the toe. After pressing, manually rotate the threaded rod 82 in the opposite direction, causing it to move the pressing frame 83 upwards to reset. In summary, this allows the toe of the sole to be heat-sealed as well.

[0054] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that variations may be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A heat-sealing device for rainproof shoe covers, comprising a support frame (1), a placement frame (2), a pressure plate (21), a connecting frame (22), an electric push rod (23), and a heater (24), wherein the placement frame (2) is connected to the upper side of the support frame (1), the connecting frame (22) is connected to the upper rear part of the support frame (1), the electric push rod (23) is connected to the middle part of the connecting frame (22), the pressure plate (21) is connected to the telescopic rod of the electric push rod (23), and the heater (24) is connected to the outer wall of the pressure plate (21), characterized in that, It also includes an edge sealing mechanism (3) and an extrusion mechanism (4). The edge sealing mechanism (3) is provided on the outer shell of the electric push rod (23), and the extrusion mechanism (4) is provided on the connecting frame (22). The edge sealing mechanism (3) includes an electric slide rail (31), a sliding member (32), a pulling member (33), a tension spring (34), a limiting member (35), a swing member (36), and a roller (37). The electric slide rail (31) is connected to the lower side of the outer shell of the electric push rod (23). The sliding member (32) is slidably connected to the electric slide rail (31). The pulling member (33) is slidably connected to the lower right side of the sliding member (32). The tension spring (34) is connected between the lower right side of the pulling member (33) and the sliding member (32). The tension spring (34) is wound around the pulling member (33). The swing member (36) is rotatably connected to the left side of the pulling member (33) through a damping sleeve. The roller (37) is rotatably connected to the swing member (36). The outer wall of the roller (37) is covered with a rubber sleeve. The limiting member (35) is slidably connected to the lower right side of the sliding member (32) through a damping sleeve. The extrusion mechanism (4) includes a connector (41), an air bladder (42), an air cylinder (43), a piston rod (44), and a compression spring (45). The connector (41) is connected to both the left and right sides of the lower middle part of the connecting frame (22). The air bladder (42) is connected between the lower inner sides of the connector (41). The air cylinder (43) is connected to the lower left side of the right connector (41). The air cylinder (43) and the air bladder (42) are connected. The piston rod (44) is slidably connected to the air cylinder (43). The swinging part (36) and the piston rod (44) are squeezed together at the front. The compression spring (45) is connected between the piston rod (44) and the front of the air cylinder (43). The compression spring (45) is wound around the piston rod (44). It also includes a swing mechanism (5), which includes a lower concave-convex bracket (51), a pressing rod (52), a first torsion spring (53) and an upper concave-convex bracket (54). The first torsion spring (53) is connected between the swing member (36) and the pulling member (33). The first torsion spring (53) is wound around the right side of the swing member (36). The pressing rod (52) is connected to the upper right side of the swing member (36). The upper concave-convex bracket (54) is connected to the lower side of the electric slide rail (31). The lower concave-convex bracket (51) is connected to the outer wall of the electric slide rail (31). The lower part of the lower concave-convex bracket (51) is located below the upper concave-convex bracket (54). The upper concave-convex bracket (54) and the lower concave-convex bracket (51) are both pressed together with the pressing rod (52).

2. The heat-sealing device for rainproof shoe covers according to claim 1, characterized in that, It also includes a striking mechanism (6), which includes a swing frame (61), a connecting rod (62), a striking piece (63), and a second torsion spring (64). The swing frame (61) is connected to the upper left and right sides of the electric slide rail (31). The connecting rod (62) is connected to the upper right front and rear sides of the sliding piece (32). The striking piece (63) is rotatably connected between the right sides of the connecting rod (62). The second torsion spring (64) is connected between the front and rear sides of the striking piece (63) and the outer side of the connecting rod (62). The second torsion spring (64) is wound around the striking piece (63). The pressing block (65) is connected to the upper side of the striking piece (63). The rear side of the pressing block (65) is an inclined surface. The rear side of the pressing block (65) and the swing frame (61) are pressed together.

3. The heat-sealing device for rainproof shoe covers according to claim 2, characterized in that, It also includes a clamping mechanism (7), which includes a clamping member (71), a pressure spring (76) and an adaptation component. The upper part of the support frame (1) is slidably connected to two clamping members (71). The two clamping members (71) are symmetrically arranged on the left and right sides. The front and rear parts of the lower outer side of the clamping member (71) and the support frame (1) are connected to pressure springs (76). The pressure springs (76) are all wound around the support frame (1). The upper part of the clamping member (71) is provided with an adaptation component.

4. The heat-sealing device for rainproof shoe covers according to claim 3, characterized in that, The adaptation assembly includes an adaptation element (72), a clamping block (73), a third torsion spring (74), and a buffer spring (75). The clamping element (71) is slidably connected to the front and rear sides of its upper part. A buffer spring (75) is connected between the upper outer sides of the adaptation element (72) and the clamping element (71). The buffer springs (75) are all wound around the adaptation element (72). The clamping block (73) is rotatably connected to the inner side of the adaptation element (72). A third torsion spring (74) is connected between the clamping block (73) and the adaptation element (72). The third torsion spring (74) is all wound around the clamping block (73).

5. The heat-sealing device for rainproof shoe covers according to claim 4, characterized in that, It also includes a pressing mechanism (8), which includes a support block (81), a threaded rod (82) and a pressing frame (83). The support block (81) is connected to the upper front side of the pressure plate (21), the threaded rod (82) is threadedly connected to the middle of the support block (81), and the pressing frame (83) is rotatably connected to the lower side of the threaded rod (82). The lower side of the pressing frame (83) is arc-shaped, and the pressing frame (83) and the support block (81) are slidably connected.

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