Efficient sewing device for uppers and soles of safety shoes

Abstract

The invention relates to the technical field of safety shoe sewing, in particular to a safety shoe upper and sole efficient sewing device which comprises an operation table, a fixing frame, a brushing frame and a glue cylinder, the brushing frame and the glue cylinder are installed on the two sides of the fixing frame, and the fixing frame is fixedly installed at the center of one side of the top of the operation table through bolts; a brushing frame is fixedly installed at the positions, at the centers of the two sides of the fixing frame, of the top of the operation table through bolts, shoe sole bases of square structures are arranged at the two ends of the other side of the top of the operation table and used for containing shoe soles, and shoe trees matched with the shoe sole bases in a matched mode are movably arranged on one side of the brushing frame. A fixed block is driven to descend through a movable screw rod, a telescopic spring is reset in the descending process to drive a piston plate to descend in a glue barrel, and glue in a storage barrel is pumped into the glue barrel again through a discharging pipe at the moment for next gluing, so that the glue is quantitatively discharged to the bottoms of shoe uppers, the shoe uppers are uniformly brushed, and the glue outlet amount is controlled; and the phenomenon of excessive or insufficient glue is prevented.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of safety shoe sewing, in particular to a high-efficiency sewing device for shoe uppers and soles of safety shoes. BACKGROUND

[0002] Safety shoes are collectively referred to as safety shoes and protective shoes, and generally refer to shoes worn in different working environments to protect feet and legs from foreseeable injuries. Safety protective shoes are high-tech and high-value shoe products, and the production process of safety protective shoes has high requirements for raw materials, auxiliary materials, chemical materials, and mechanical equipment.

[0003] At present, in the sewing of soles and uppers, the upper is first adhered to the top of the sole by using a manual clamping method with an adhesive. Specifically, the sole is positioned and clamped on a sole mold, adhesive is brushed on the top of the sole, the upper is sleeved onto a last, and then the adhesive is adhered. After the adhesive is adhered, the shoe is manually taken off from the sole mold and the last. The efficiency is low, the labor intensity is large, the quality cannot be well guaranteed, and too much adhesive brushing during the adhesive process will cause the adhesive to be squeezed out or unevenly brushed during the adhesive process, and too little adhesive brushing will cause the adhesive between the sole and the upper to be not firm and cause the phenomenon of adhesive separation. In addition, the sole and the upper need to be manually turned back and forth multiple times during the adhesive process, and the operation labor is large. SUMMARY

[0004] In order to overcome the deficiencies of the prior art, the present application provides a high-efficiency sewing device for shoe uppers and soles of safety shoes.

[0005] To solve the above technical problems, the present application provides the following technical scheme: an operation table, a fixing frame arranged at the center of the top of the operation table, a brushing frame and an adhesive cylinder mounted on both sides of the fixing frame, a fixing frame is fixedly installed on one side of the center of the top of the operation table through bolts, a brushing frame is fixedly installed on both sides of the center of the top of the operation table through bolts, a square shoe sole seat for placing soles is arranged at both ends of the other side of the top of the operation table, a last matched with the shoe sole seat is movably arranged on one side of the brushing frame, an adhesive cylinder is fixedly installed on the top of one side of the fixing frame on the operation table through bolts, a sewing body for sewing the side edges of the upper and the sole is fixedly installed on both sides of the operation table through bolts, a turnover assembly is arranged in the brushing frame, and the turnover assembly comprises: The turnover plate turns over the last, the inside of the brush frame is fixedly installed with a limiting seat on both sides through bolts, a movable block is movably connected between the top of the limiting seat, a rotating disc is fixedly installed on the top center of the movable block through bolts, a rotating rod is connected with the center of the rotating disc through a bearing, the top end of the rotating rod movably penetrates the outside of the brush frame, a rotating plate is connected with the other end of the rotating rod, a T-shaped limiting ring is connected with the other side of the rotating plate, a turnover groove is formed in the brush frame between the limiting seats and matches the size of the T-shaped limiting ring, and the T-shaped limiting ring movably penetrates in the turnover groove. The shoe type glue coating seat coats glue on the top of the last, a connecting plate is fixedly installed on the top side of the brush frame through bolts, the shoe type glue coating seat matching the size and position of the last is fixedly installed on the top end of the connecting plate through bolts, the top of the shoe type glue coating seat is connected with the top side of the glue cylinder through a feeding pipe, a telescopic cylinder is fixedly installed on the bottom outer periphery of the glue cylinder, a piston plate is movably arranged in the glue cylinder, a piston rod is fixedly installed on the bottom center of the piston plate through bolts, the bottom of the piston rod extends to the bottom outer periphery of the telescopic cylinder, and a T-shaped push ring is fixedly installed on the bottom end of the piston rod through bolts. The fixing block drives the movable block, the fixing block is movably arranged in the center of the fixing frame, one side of the fixing block is connected with the center of one side of the movable block through a fixing rod, and a movable buckle matching the size and position of the T-shaped push ring is fixedly installed on the center of the other side of the movable block through bolts.

[0006] As a preferred technical scheme of the present application, the center of the top of the operation table is fixedly installed with a limiting block through bolts, the shoe sole seat is placed on one side of the limiting block on the operation table, quick push-pull clamps are fixedly installed on both ends of the other side of the shoe sole seat on the operation table through bolts, the other side of the shoe sole seat is clamped and positioned by the quick push-pull clamps, a placing groove for placing the shoe sole is formed in the top of the shoe sole seat, and a storage rack is fixedly installed on the top side of the sewing body on the operation table through bolts.

[0007] As a preferred technical scheme of the present application, a servo motor is fixedly installed on the center of the top side of the fixing frame on the operation table, lifting screws are movably connected with the centers of the upper and lower ends of the fixing frame through bearings, the fixing block movably penetrates the outer periphery of the lifting screw, and the top end of the lifting screw extends to the output end of the servo motor through the fixing frame. Fixing grooves matching the size of the fixing rods are formed in the centers of the two sides of the fixing frame, and the fixing rods movably penetrate in the fixing grooves.

[0008] As a preferred technical scheme of the present application, a limiting sliding groove is formed at the top center of the limiting seat, a limiting sliding block is slidably connected in the limiting sliding groove on the limiting seat, and one side of the movable block is fixedly installed on the top of the limiting sliding block through bolts at both ends; A rotating slot is formed at the center of one side of the painting frame, the rotating rod is movably penetrated in the rotating slot, the rotating plate is fixedly installed on the top end of the rotating rod outside the painting frame through bolts, the shoe tree is fixedly installed on the top end of the rotating plate through bolts, and active slots are formed at the centers of both sides of the painting frame, and the active buckles are movably penetrated in the active slots.

[0009] As a preferred technical scheme of the present application, a limiting sliding groove is formed at the top center of the limiting seat, a limiting sliding block is slidably connected in the limiting sliding groove on the limiting seat, and one side of the movable block is fixedly installed on the top of the limiting sliding block through bolts at both ends;

[0010] The top of the operating table is fixedly installed with a storage cylinder for storing glue through bolts on both sides, and the top of the storage cylinder is fixedly installed with a discharge pipe through bolts. The other side of the discharge pipe is penetrated and connected to the other side of the top of the glue cylinder, and one-way valves are arranged on the discharge pipe and the feeding pipe. The bottom of the shoe-shaped glue coating seat is fixedly connected with a plurality of glue heads through bolts.

[0011] Compared with the prior art, the present application has the following advantages: When the T-shaped push ring under the piston rod is entered through the active buckle, the positioning disc in the telescopic cylinder is raised to compress the telescopic spring and store power. The glue in the glue cylinder is uniformly dropped onto the bottom of the upper through the glue head on the feeding pipe, the brushing is uniform, and the labor intensity of the operator is reduced.

[0012] The fixed block drives the movable block on the limiting seat to move upward through the fixed slot and the fixed rod. The shoe tree on the rotating plate is raised by the rotating rod through the rotating slot, so that the bottom of the upper on the shoe tree is attached to the bottom of the shoe-shaped glue coating seat, and automatic glue coating is realized.

[0013] The fixed block is driven to descend by the active screw rod. During the descending process, the piston plate is driven to descend in the glue cylinder by the reset of the telescopic spring. At this time, the glue in the storage cylinder is extracted into the glue cylinder through the discharge pipe for the next glue coating, so that the glue is quantitatively discharged to the bottom of the upper, the brushing is uniform, the amount of glue is controlled, and the phenomenon of too much or too little glue is prevented.

[0014] The rotating rod in the rotating plate flips during descent, bonding the upper on the shoe last to the sole inside the shoe base. After a certain period of bonding, the glue solidifies, and the fixing block rises again and flips to turn the sole upward, making it easier for the operator to remove the shoe body from the shoe last. This achieves multiple automated flips during the sewing process, reducing the amount of labor required.

[0015] The device allows for easy installation and replacement of shoe bases via a limit block and quick-release clip on the operating table. It is adaptable to different shoe sizes for sewing, is simple to operate, has a stable structure, and strong adaptability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ; Figure 3 For the present invention Figure 2 Schematic diagram of the central control panel structure; Figure 4 For the present invention Figure 3 Schematic diagram of the connection structure between the central fixing frame and the paint rack; Figure 5 For the present invention Figure 4 Schematic diagram of the internal front structure of the coating rack; Figure 6 For the present invention Figure 4 Schematic diagram of the internal reverse structure of the coating brush holder; Figure 7 For the present invention Figure 5 Schematic diagram of the middle limit seat structure; Figure 8 For the present invention Figure 5 Schematic diagram of the internal structure of the glue cylinder; Figure 9 For the present invention Figure 8 Schematic diagram of the bottom connection structure of the piston plate.

[0017] The components are as follows: 10. Operating table; 11. Shoe base; 12. Sewing body; 13. Limiting block; 14. Quick push-pull clamp; 15. Placement groove; 16. Storage rack; 17. Storage cylinder; 20. Fixing frame; 21. Fixing block; 22. Fixing rod; 23. Servo motor; 24. Lifting screw; 25. Fixing slot; 30. Painting rack; 31. Flipping plate; 32. Limiting seat; 33. Movable block; 34. Rotary disk; 35. Rotating rod; 36. Rotating plate; 37. T-shaped limiting ring; 38. Flipping groove; 39. Rotating groove; 40. Glue cylinder; 41. Shoe-shaped glue applicator; 42. Piston plate; 43. Piston rod; 44. Discharge pipe; 45. Feed pipe; 46. Glue head; 47. Piston plate; 50. Telescopic cylinder; 51. T-shaped push ring; 52. Movable buckle; 53. Movable groove; 54. Positioning plate; 55. Telescopic spring; 56. Movable hole; 60. Limiting slide groove; 61. Limiting slider; 62. Shoe last. Detailed Implementation

[0018] To make the technical means, creative features, and achieved objectives and effects of this invention easier to understand, the invention is further described below with reference to specific embodiments. However, the following embodiments are merely preferred embodiments of this invention and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described herein without creative effort are all within the protection scope of this invention. Unless otherwise specified, the experimental methods in the following embodiments are conventional methods, and the materials and reagents used in the following embodiments are commercially available unless otherwise specified.

[0019] Example: Figure 1 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 As shown, the device includes a worktable 10, a fixed frame 20 located at the center of the top of the worktable 10, brush holders 30 and glue tanks 40 installed on both sides of the fixed frame 20. The fixed frame 20 is bolted to the center of one side of the top of the worktable 10. The brush holders 30 are bolted to the center of both sides of the fixed frame 20 on the top of the worktable 10. Square shoe bases 11 for placing shoe soles are provided at both ends of the other side of the top of the worktable 10 to facilitate fitting with the shoe upper. A shoe last 62 that matches the shoe base 11 is movably provided on one side of the brush holders 30. Glue tanks 40 are bolted to the top of one side of the fixed frame 20 on the worktable 10 to store glue. Sewing bodies 12 for sewing the sides of the shoe upper and sole are bolted to both sides of the worktable 10. The brush holders 30 are provided with a flipping component, which includes: The flipping plate 31 flips the shoe last 62. The inner sides of the brush holder 30 are fixed with limit seats 32 by bolts. The top of the limit seats 32 is movably connected to the top of the limit seats 32. The top center of the movable block 33 is fixed with bolts to the rotating disk 34. The rotating disk 34 is used to flip the flipping plate 31. The center of the rotating disk 34 is connected to the rotating rod 35 by bearing. The top of the rotating rod 35 moves through the outer side of the brush holder 30. The other end of the rotating rod 35 is connected to the rotating plate 36. The other side of the rotating plate 36 is connected to the T-shaped limit ring 37. The brush holder 30 has a flipping groove 38 between the limit seats 32 that matches the size of the T-shaped limit ring 37. The T-shaped limit ring 37 moves through the flipping groove 38 to achieve the flipping effect during the lifting process. The shoe-shaped glue-applying seat 41 applies glue to the top of the shoe last 62, achieving a uniform glue application effect on the bottom periphery of the shoe upper. A connecting plate 42 is bolted to one side of the top of the brush holder 30. The top of the connecting plate 42 is bolted to the shoe-shaped glue-applying seat 41, which matches the size and position of the shoe last 62. The top of the shoe-shaped glue-applying seat 41 is connected to the top side of the glue cylinder 40 via a feed pipe 45. A telescopic cylinder 50 is fixedly installed on the outer periphery of the bottom of the glue cylinder 40. A piston plate 47 is movably installed inside the glue cylinder 40 to achieve the effect of drawing and squeezing glue from the glue cylinder 40. A piston rod 43 is bolted to the center of the bottom of the piston plate 47. The bottom of the piston rod 43 extends through to the outer periphery of the bottom of the telescopic cylinder 50, and a T-shaped push ring 51 is bolted to the bottom end of the piston rod 43 to facilitate the control of the glue in the glue cylinder 40. The fixed block 21 drives the movable block 33. The fixed block 21 is movably set at the center of the fixed frame 20. One side of the fixed block 21 is connected to the center of one side of the movable block 33 through the fixed rod 22. The structure is simple and stable. The other side of the movable block 33 is fixed with a movable buckle 52 that matches the size and position of the T-shaped push ring 51 by bolts to achieve a stable pushing effect.

[0020] See Figure 2 and Figure 3 A limiting block 13 is fixedly installed at the top center of the operating table 10 by bolts. A shoe base 11 is placed on one side of the limiting block 13 on the operating table 10, which facilitates the installation and replacement of the shoe base 11 and adapts to different sizes of shoes for sewing. Quick push-pull clips 14 are fixedly installed on the other two ends of the shoe base 11 on the operating table 10 by bolts. The quick push-pull clips 14 clamp and position the other two ends of the shoe base 11. The operation is simple and the structure is stable. The top of the shoe base 11 has a placement groove 15 for placing the shoe sole. A storage rack 16 is fixedly installed on one side of the top of the sewing body 12 on the operating table 10 by bolts to realize the storage function.

[0021] See Figure 5 , Figure 6 and Figure 7 A servo motor 23 is fixedly installed on the top side of the fixed frame 20 on the operating table 10 by bolts. The upper and lower ends of the fixed frame 20 are movably connected to the center by bearings. The fixed block 21 is movably inserted through the outer periphery of the lifting screw 24, driving the fixed block 21 to achieve stable lifting and lowering movement on the screw. The top end of the lifting screw 24 extends through the fixed frame 20 to the output end of the servo motor 23, forming a through connection. The structure is simple and stable. The fixing bracket 20 has fixing grooves 25 at the center of both sides that match the size of the fixing rod 22, and the fixing rod 22 moves through the fixing grooves 25.

[0022] See Figure 3 , Figure 6 and Figure 7 A limiting groove 60 is provided at the top center of the limiting seat 32. A limiting slider 61 is slidably connected to the limiting seat 32 in the limiting groove 60. One end of the movable block 33 is fixedly installed on the top of the limiting slider 61 by bolts, limiting the movement and making the movable block 33 stable and firm during the lifting process. A rotating groove 39, matching the size of the rotating rod 35, is provided at the center of one side of the paint rack 30. The rotating rod 35 moves through the rotating groove 39. A flip plate 31 is fixedly installed on the outside of the paint rack 30 by bolts at the top of the rotating rod 35. A shoe last 62 is fixedly installed on the top end of the flip plate 31 by bolts. Movable grooves 53, matching the size of the movable buckles 52, are provided at the center of both sides of the paint rack 30. The movable buckles 52 move through the movable grooves 53, forming a through connection and a stable structure.

[0023] See Figure 7 , Figure 8 and Figure 9 A positioning plate 54 is fixedly installed on the piston rod 43 at the outer periphery inside the telescopic cylinder 50. A telescopic spring 55 is fixedly installed on the top of the positioning plate 54 around the piston rod 43 by bolts. The top of the telescopic spring 55 is fixedly installed around the bottom of the glue cylinder 40. A movable hole 56 is opened at the bottom of the telescopic cylinder 50. The positioning plate 54 is movably inserted through the movable hole 56. The telescopic spring 55, in conjunction with the lifting movable block 33, enables the glue cylinder 40 to enter and squeeze out glue.

[0024] Storage cylinders 17 for storing glue are fixedly installed on both sides of the top of the operating table 10 by bolts, and a discharge pipe 44 is fixedly installed on the top of the storage cylinder 17 by bolts. The other side of the discharge pipe 44 is connected to the other side of the top of the glue cylinder 40. One-way valves are provided on both the discharge pipe 44 and the inlet pipe 45. Several glue heads 46 are fixedly connected around the bottom of the shoe-shaped glue application base 41 by bolts, so as to achieve the effect of uniform glue application.

[0025] Working principle: Before use, insert the shoe upper into the shoe last 62. The fixed block 21 on the movable screw is driven by the servo motor 23 to move upward in the fixed frame 20. The fixed block 21 drives the movable block 33 on the limit seat 32 to move upward through the fixed groove 25 and the fixed rod 22. The rotating rod 35 on the movable block 33 drives the shoe last 62 on the rotating plate 36 to rise through the rotating groove 39, so that the bottom of the shoe upper on the shoe last 62 fits against the top side of the shoe shape glue base 41. During the upward movement, the movable block 33 simultaneously drives the movable buckle 52 to rise through the movable groove 53. When the movable buckle 52 rises to a certain height, it enters the T-shaped push ring 51 under the piston rod 43. The continuous upward movement causes the piston plate 47 in the glue cylinder 40 to rise through the T-shaped push ring 51. At the same time, the positioning plate 54 in the telescopic cylinder 50 rises to compress the telescopic spring 55, causing the glue in the glue cylinder 40 to enter the glue head 46 at the bottom of the shoe sole through the feed pipe 45. The glue head 46 evenly drips the glue onto the bottom of the shoe upper around the perimeter. After the glue drips down, the servo motor 23 drives the fixed block 21 to descend via the movable screw. During the descent, the telescopic spring 55 resets and drives the piston plate 47 to descend in the glue cylinder 40. At this time, the glue in the storage cylinder 17 is drawn back into the glue cylinder 40 through the discharge pipe 44 for the next application. As the fixed block 21 continues to descend, the T-shaped limiting ring 37 drives the rotating plate 36 to rotate in the flipping groove 38, causing the rotating rod 35 in the rotating disk 34 to flip, so that the bottom of the shoe upper on the shoe last 62 is facing down and matches the sole. When the fixed block 21 descends again, the shoe upper on the shoe last 62 is bonded to the sole inside the shoe base 11. After a certain period of bonding, the glue solidifies. Then the fixed block 21 rises again, turning the sole upward, making it easy for the operator to remove the shoe body from the shoe last 62. The removed shoe body can then be manually sewn on the side by the sewing body 12 on the side of the operating table 10. The whole process is simple and convenient.

[0026] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A high-efficiency sewing device for the upper and sole of a safety shoe, comprising an operating table (10), a fixing frame (20) disposed at the top center of the operating table (10), a brush holder (30) and a glue tube (40) installed on both sides of the fixing frame (20), characterized in that, The fixing frame (20) is bolted to the center of one side of the top of the operating table (10). The brush holder (30) is bolted to the center of both sides of the fixing frame (20) on the top of the operating table (10). Square shoe bases (11) for placing shoe soles are provided at both ends of the other side of the top of the operating table (10). A shoe last (62) matching the shoe base (11) is movably provided on one side of the brush holder (30). Glue tubes (40) are bolted to the top of one side of the fixing frame (20) on the operating table (10). Sewing bodies (12) for sewing the upper and sole sides are bolted to both sides of the operating table (10). The brush holder (30) is provided with a flipping component, which includes: A flipping plate (31) for flipping the shoe last (62) is provided. Limiting seats (32) are fixedly installed on both sides of the inside of the brush holder (30) by bolts. A movable block (33) is movably connected between the tops of the limiting seats (32). A rotating disk (34) is fixedly installed at the center of the top of the movable block (33) by bolts. A rotating rod (35) is connected to the center of the rotating disk (34) by a bearing. The top end of the rotating rod (35) movably passes through the outside of the brush holder (30). The other end of the rotating rod (35) is connected to a rotating plate (36). A T-shaped limiting ring (37) is connected to the other side of the rotating plate (36). A flipping groove (38) matching the size of the T-shaped limiting ring (37) is opened between the limiting seats (32) on the brush holder (30). The T-shaped limiting ring (37) movably passes through the flipping groove (38). A shoe-shaped glue-applying seat (41) for applying glue to the top of the shoe last (62) is provided. A connecting plate (42) is fixedly installed on one side of the top of the brush frame (30) by bolts. The top of the connecting plate (42) is fixedly installed with the shoe-shaped glue-applying seat (41) that matches the size and position of the shoe last (62) by bolts. The top of the shoe-shaped glue-applying seat (41) is connected to the top side of the glue cylinder (40) through a feed pipe (45). A telescopic cylinder (50) is fixedly installed on the outer periphery of the bottom of the glue cylinder (40). A piston plate (47) is movably arranged inside the glue cylinder (40). A piston rod (43) is fixedly installed at the bottom center of the piston plate (47) by bolts. The bottom of the piston rod (43) extends through to the outer periphery of the bottom of the telescopic cylinder (50). A T-shaped push ring (51) is fixedly installed at the bottom end of the piston rod (43) by bolts. A fixed block (21) that drives the movable block (33) is movably disposed at the center of the interior of the fixed frame (20). One side of the fixed block (21) is connected to the center of one side of the movable block (33) by a fixed rod (22). A movable buckle (52) that matches the size and position of the T-shaped push ring (51) is fixedly installed at the center of the other side of the movable block (33) by bolts.

2. The high-efficiency sewing device for the upper and sole of a safety shoe according to claim 1, characterized in that, A limiting block (13) is fixedly installed at the top center of the operating table (10) by bolts. The shoe base (11) is placed on one side of the limiting block (13) on the operating table (10). Quick push-pull clips (14) are fixedly installed on the other two ends of the shoe base (11) on the operating table (10) by bolts. The quick push-pull clips (14) clamp and position the other two ends of the shoe base (11). The top of the shoe base (11) is provided with a placement groove (15) for placing the shoe sole. A storage rack (16) is fixedly installed on one side of the top of the sewing body (12) on the operating table (10) by bolts.

3. The high-efficiency sewing device for the upper and sole of a safety shoe according to claim 1, characterized in that, A servo motor (23) is fixedly mounted on the operating table (10) at the center of the top side of the fixed frame (20) by bolts. A lifting screw (24) is movably connected to the center of the upper and lower ends of the fixed frame (20) by bearings. The fixing block (21) movably passes through the outer periphery of the lifting screw (24). The top end of the lifting screw (24) passes through the fixed frame (20) and extends to the output end of the servo motor (23). The fixing frame (20) has fixing grooves (25) at the center of both sides that match the size of the fixing rod (22), and the fixing rod (22) moves through the fixing grooves (25).

4. The high-efficiency sewing device for the upper and sole of a safety shoe according to claim 1, characterized in that, A limiting groove (60) is provided at the top center of the limiting seat (32), and a limiting slider (61) is slidably connected on the limiting seat (32) in the limiting groove (60). One end of the movable block (33) is fixedly installed on the top of the limiting slider (61) by bolts.

5. The high-efficiency sewing device for the upper and sole of a safety shoe according to claim 4, characterized in that, A rotating groove (39) matching the size of the rotating rod (35) is provided at the center of one side of the brush holder (30), and the rotating rod (35) moves through the rotating groove (39). The top of the rotating rod (35) is fixedly mounted to the flip plate (31) on the outside of the brush holder (30) by bolts. The top end of the flip plate (31) is fixedly mounted to the shoe last (62) by bolts. Movable grooves (53) matching the size of the movable buckle (52) are provided at the center of both sides of the brush holder (30), and the movable buckles (52) move through the movable grooves (53).

6. The high-efficiency sewing device for the upper and sole of a safety shoe according to claim 1, characterized in that, A positioning plate (54) is fixedly installed on the piston rod (43) at the outer periphery inside the telescopic cylinder (50). A telescopic spring (55) is fixedly installed on the top of the positioning plate (54) around the piston rod (43) by bolts. The top of the telescopic spring (55) is fixedly installed around the bottom of the glue cylinder (40). A movable hole (56) is opened at the bottom of the telescopic cylinder (50), and the positioning plate (54) moves through the movable hole (56).

7. The high-efficiency sewing device for the upper and sole of a safety shoe according to claim 6, characterized in that, The top two sides of the operating table (10) are fixed with storage cylinders (17) for storing glue by bolts, and the top of the storage cylinder (17) is fixed with a discharge pipe (44) by bolts. The other side of the discharge pipe (44) is connected to the other side of the top of the glue cylinder (40). Both the discharge pipe (44) and the feed pipe (45) are equipped with one-way valves. The bottom of the shoe-shaped glue applicator (41) is connected with several glue heads (46) by bolts.

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