Pneumatic heel lasting machine

Abstract

The utility model relates to the technical field of shoemaking equipment, in particular to a pneumatic heel lasting machine which comprises a machine frame, a machine box, a control screen, a foot switch, a supporting table mechanism and a sweeping knife tightening mechanism, a machine frame platen is arranged on the machine frame, universal wheels are arranged on the lower portion of the machine frame, the machine box is arranged on the upper portion of the machine frame, the control screen is arranged on the upper portion of the machine box, and a supporting table seat plate is arranged on the machine frame platen. A supporting table seat plate is arranged on the machine box, sweeping knife tightening supports are arranged on the portions, on the two sides of the supporting table seat plate, of the machine frame table plate, the supporting table mechanism is arranged on the supporting table seat plate, sweeping knife tightening mechanisms are arranged on the upper portions of the sweeping knife tightening supports, and a positioning height detection device is arranged in the portion, on the upper portions of the sweeping knife tightening mechanisms, of the machine box. The pneumatic structures act uniformly and softly in cooperation with an air storage tank, the upper pulling and pressing effects are stable, the whole machine is easy to operate and maintain, electric energy consumption is reduced, heat emission is reduced, and the low-temperature investment cost of a plant is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of shoemaking equipment, in particular to a pneumatic heel-lasting machine. Background Art

[0002] Shoes are indispensable to human life. With the improvement of human life quality, people also begin to pursue high-end shoes. In the shoemaking process, the shoe lasting machine is a commonly used production machine in the automatic production of shoes. After the shoe last is put into the machine, it is placed on the last support column set in the machine together with the shoe last and the midsole. The tightener presses against the upper to make the upper and the midsole adhere to each other, so as to achieve the effect of the upper and the upper forming.

[0003] The heel-lasting machines commonly used in the industry now all adopt hydraulic drive. Although they can complete the process of forming the upper and vamp, hydraulic drive increases the equipment cost and the cost of use. In addition, the hydraulic system will inevitably have oil spills and is difficult to maintain. In addition, high temperature is easily generated when the hydraulic drive is working. The high temperature emitted by the equipment increases the room temperature of the factory and affects the working environment of the operators. Utility Model Content

[0004] The purpose of the utility model is to provide a pneumatic heel lasting machine in view of the deficiencies in the prior art. The structure of the pneumatic heel lasting machine is scientific and ingenious. The whole machine is driven by a pneumatic structure without the need for additional hydraulic oil. The pneumatic structures can move evenly and softly in conjunction with an air storage tank. The heel lasting and pressing effect is stable. The whole machine is simple to operate and easy to maintain, and can save electricity consumption, reduce heat emissions, and reduce the low-temperature investment cost of the factory.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A pneumatic backing machine comprises a frame, a chassis, a control screen, a foot switch, a support platform mechanism, and a sweeping knife tightening mechanism. The frame is provided with a frame table, and a universal wheel is provided at the lower part of the frame. The chassis is arranged at the upper part of the frame, and the control screen is arranged at the upper part of the chassis. A support platform seat plate is provided on the frame table, and sweeping knife tightening supports are provided on the frame tables on both sides of the support platform seat plate. The support platform mechanism is arranged on the support platform seat plate, and the sweeping knife tightening mechanism is arranged at the upper part of the sweeping knife tightening support. A positioning height detection device is provided inside the chassis at the upper part of the sweeping knife tightening mechanism, and an air storage tank is provided on the frame at the lower part of the frame table, and the support platform mechanism and the sweeping knife tightening mechanism are arranged correspondingly up and down;

[0007] The bottom surface of the support base plate is provided with a support cylinder seat, the bottom of the support cylinder seat is provided with a support cylinder rotating shaft, the inside of the support cylinder seat is movably connected with a support cylinder through the support cylinder rotating shaft, the upper part of the cylinder body of the support cylinder is provided with a support rod sleeve, the inside of the support rod sleeve is provided with a support rod, the support rod is fixedly connected to the piston rod of the support cylinder, and the bottom surface of the support cylinder seat is also provided with a pulling cylinder, the piston rod of the pulling cylinder is connected to the support rod sleeve The lower side of the support rod is movably connected, the support rod sleeve extends to the top of the support rod seat plate, and the top of the support rod sleeve is provided with a last seat, the upper side of the support rod sleeve is provided with an opening, the upper part of the support rod is connected with an L-shaped support rod, the L-shaped support rod is fixedly connected to the support rod through the opening on the upper side of the support rod sleeve, a support bridge is provided on the L-shaped support rod, a support movable seat is provided on the support bridge, and a support is provided on the support movable seat;

[0008] The sweeping knife tightening mechanism includes a sweeping knife tightening top plate, which is fixed on the top of the sweeping knife tightening support. The sweeping knife tightening top plate is provided with a positioning mechanism, a sweeping knife mechanism, and a tightening mechanism. The sweeping knife tightening mechanism is also provided with a sweeping knife upper cover plate and a sweeping knife lower cover plate. The sweeping knife upper cover plate is fixed under the sweeping knife tightening top plate, and a cover plate pad is provided between the sweeping knife upper cover plate and the sweeping knife lower cover plate.

[0009] Furthermore, the positioning mechanism includes a positioning rotating seat and a positioning rotating plate, the positioning rotating seat is fixedly arranged in the middle position above the sweeping knife tightening top plate, one end of the positioning rotating plate is movably connected to the positioning rotating seat through a positioning rotating shaft, a positioning rotating cylinder is provided on the positioning rotating plate, a piston rod of the positioning rotating cylinder extends to the lower part of the positioning rotating plate, and a rotating support wheel is provided at the end, a positioning rod sliding seat is provided at the other end of the positioning rotating plate, a positioning adjustment rod and a positioning rod are provided on the positioning rod sliding seat, a sliding connection is set between the positioning rod and the positioning rod sliding seat, a threaded connection is set between the positioning rod and the positioning adjustment rod, positioning reset tension springs are provided on both sides of the positioning rod sliding seat, the other end of the positioning reset tension spring is connected to the sweeping knife tightening top plate, and the positioning rod and the height detection device are correspondingly arranged up and down;

[0010] The sweeping knife mechanism includes a sweeping knife cylinder, which is fixed to the side of the sweeping knife tightening top plate, a sweeping knife transmission rod is provided on the piston rod of the sweeping knife cylinder, two symmetrically arranged sweeping knife seats are provided between the sweeping knife upper cover plate and the sweeping knife lower cover plate, a sweeping knife connecting rod is connected between the sweeping knife seat and the sweeping knife transmission rod, and a sweeping knife is provided on the sweeping knife seat;

[0011] The tightening mechanism includes a tightening rotating seat and a tightening cylinder. The tightening rotating seat is fixed under the lower cover plate of the sweeper. A tightening device positioning pin is provided on the tightening rotating seat. Two symmetrically arranged tightening rotating rods are provided on both sides of the tightening rotating seat. The middle part of the tightening rotating rod is movably connected to the tightening rotating seat. The ends of the two tightening rotating rods are respectively connected to the cylinder body and the piston rod of the tightening cylinder. A tightening device and a tightening chain are movably connected between the other ends of the two tightening rotating rods. The tightening chain is arranged on the outer side of the tightening device. The tail of the tightening device is movably connected to the tightening rotating seat and is positioned by the tightening device positioning pin.

[0012] Furthermore, the platform supporting mechanism rotates around the rotating shaft of the platform supporting cylinder by the power of the pulling cylinder.

[0013] Furthermore, the L-shaped support seat and the support rod are synchronized and reciprocate up and down through the power of the support cylinder; the support platform and the L-shaped support seat are synchronized to reciprocate up and down.

[0014] Furthermore, the positioning mechanism performs angular rotation displacement around the positioning rotation axis through the power of the positioning rotation cylinder; the positioning mechanism is reset through the tension of the positioning reset spring; and the positioning mechanism detects the rotation height through the height detection device.

[0015] Furthermore, the sweeper is synchronized with the sweeper seat, and performs opening and closing reciprocating motion through the power of the sweeper cylinder; the tightening chain is synchronized with the tightening rotating rod, and performs opening and closing motion through the power of the tightening cylinder, and the tightener moves synchronously with the tightening chain.

[0016] The utility model has the following beneficial effects compared with the prior art through the above technical solution:

[0017] 1. The utility model provides a pneumatic back-lasting machine, which completely replaces the previous hydraulic drive structure by driving the rotation of the support platform lift and the positioning process of the sweeper and tightener. It not only has high working efficiency, but also cooperates with the air storage tank to make the movements of each pneumatic structure uniform and soft, and the lasting and pressing effect is stable. The whole machine is simple to operate and easy to maintain, saves electricity consumption, reduces heat emission, and reduces the low-temperature investment cost of the factory.

[0018] 2. The utility model provides a pneumatic heel lasting machine, which can push the support cylinder to rotate at an angle by setting a pulling cylinder, and the support cylinder can push the support rod to move up and down. Due to this structure, the shoe last and the support on the last seat can be rotated, and the support can move up and down, and the action is continuous, which is convenient for quick removal and placement of the last, thereby improving the cycle work efficiency.

[0019] 3. The utility model provides a pneumatic heel lasting machine, which rotates the positioning mechanism by an angle through a rotating cylinder, and detects the rotation height through a height detection device, thereby ensuring the accuracy and consistency of the final heel position of the shoe last; the sweeping knife mechanism drives the sweeping knife to open and close through the sweeping knife cylinder, has a wide range of applicability, and the sweeping knife opening and closing force is also softer; the tightening mechanism adopts a lever structure, which opens and closes through the power of the tightening cylinder, and adopts pneumatic pulling force, which is more flexible and the pulling effect is more uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the utility model;

[0021] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0022] Figure 3 It is a schematic diagram of the support platform mechanism of the utility model;

[0023] Figure 4 It is a schematic diagram of the sweeper tightening mechanism of the utility model;

[0024] Figure 5 It is a schematic diagram of the positioning mechanism of the utility model;

[0025] Figure 6 It is a schematic diagram of the sweeping knife mechanism of the utility model;

[0026] Figure 7 It is a schematic diagram of the tightening mechanism of the utility model. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See Figure 1 to Figure 2As shown: the utility model is a pneumatic back-end machine, including a frame 1, a chassis 2, a control screen 3, a foot switch 4, a support platform mechanism 5, and a sweeping knife tightening mechanism 6. The frame 1 is provided with a frame table 10, and the lower part of the frame 1 is provided with a universal wheel 7. The chassis 2 is arranged on the upper part of the frame 1, and the control screen 3 is arranged on the upper part of the chassis 2. A support platform seat plate 50 is arranged on the frame table 10, and sweeping knife tightening supports 8 are arranged on the frame table 10 on both sides of the support platform seat plate 50. The support platform mechanism 5 is arranged on the support platform seat plate 50, and the sweeping knife tightening mechanism 6 is arranged on the upper part of the sweeping knife tightening support 8. A positioning height detection device 9 is provided inside the chassis 2 above the sweeping knife tightening mechanism 6, and an air storage tank 11 is provided on the frame 1 below the frame table 10. The support platform mechanism 5 and the sweeping knife tightening mechanism 6 are arranged correspondingly up and down;

[0029] like Figure 3 As shown, a support cylinder seat 51 is provided on the bottom surface of the support seat plate 50, and a support cylinder rotating shaft 510 is provided at the bottom of the support cylinder seat 51. A support cylinder 52 is movably connected to the support cylinder rotating shaft 510 inside the support cylinder seat 51, and a support rod sleeve 54 is provided on the upper part of the cylinder body of the support cylinder 52. A support rod is provided inside the support rod sleeve 54, and the support rod is fixedly connected to the piston rod of the support cylinder 52. A pulling cylinder 53 is also provided on the bottom surface of the support cylinder seat 51, and the piston rod of the pulling cylinder 53 is connected to the support rod sleeve. The lower side of 54 is movably connected, the support rod sleeve 54 extends to the top of the support base plate 50, and the top of the support rod sleeve 54 is provided with a last seat 55, the upper side of the support rod sleeve 54 is provided with an opening, the upper part of the support rod is connected with an L-shaped support support 56, the L-shaped support support 56 is fixedly connected to the support rod through the opening on the upper side of the support rod sleeve 54, a support bridge 57 is provided on the L-shaped support support 56, a support movable seat 58 is provided on the support bridge 57, and a support 59 is provided on the support movable seat 58;

[0030] like Figure 4 As shown, the sweeping blade tightening mechanism 6 includes a sweeping blade tightening top plate 60, which is fixed on the top of the sweeping blade tightening support 8. The sweeping blade tightening top plate 60 is provided with a positioning mechanism 61, a sweeping blade mechanism 62, and a tightening mechanism 63. The sweeping blade tightening mechanism 6 is also provided with a sweeping blade upper cover plate 620 and a sweeping blade lower cover plate 630. The sweeping blade upper cover plate 620 is fixed under the sweeping blade tightening top plate 60, and a cover plate pad 640 is provided between the sweeping blade upper cover plate 620 and the sweeping blade lower cover plate 630.

[0031] like Figure 5As shown, the positioning mechanism 61 includes a positioning rotating seat 610 and a positioning rotating plate 611. The positioning rotating seat 610 is fixedly arranged at the middle position above the sweeping knife tightening top plate 60. One end of the positioning rotating plate 611 is movably connected to the positioning rotating seat 610 through a positioning rotating shaft 612. A positioning rotating cylinder 613 is provided on the positioning rotating plate 611. The piston rod of the positioning rotating cylinder 613 extends to the lower part of the positioning rotating plate 611, and a rotating support wheel 614 is provided at the end. The positioning rotating plate 611 The other end of the positioning rod sliding seat 615 is provided with a positioning rod sliding seat 615, and a positioning adjustment rod 616 and a positioning rod 618 are provided on the positioning rod sliding seat 615. The positioning rod 618 and the positioning rod sliding seat 615 are slidably connected, and the positioning rod 618 and the positioning adjustment rod 616 are threadedly connected. Both sides of the positioning rod sliding seat 615 are provided with positioning reset springs 617, and the other end of the positioning reset spring 617 is connected to the sweeping knife tightening top plate 60, and the positioning rod 618 and the height detection device 9 are arranged correspondingly up and down;

[0032] like Figure 6 As shown, the sweeping knife mechanism 62 includes a sweeping knife cylinder 621, which is fixed to the side of the sweeping knife tightening top plate 60, and a sweeping knife transmission rod 622 is provided on the piston rod of the sweeping knife cylinder 621. Two symmetrically arranged sweeping knife seats 624 are provided between the sweeping knife upper cover plate 620 and the sweeping knife lower cover plate 630. A sweeping knife connecting rod 623 is connected between the sweeping knife seat 624 and the sweeping knife transmission rod 622, and a sweeping knife 625 is provided on the sweeping knife seat 624.

[0033] like Figure 7 As shown, the tightening mechanism 63 includes a tightening rotating seat 631 and a tightening cylinder 633. The tightening rotating seat 631 is fixed under the lower cover plate 630 of the sweeper. A tightening device positioning pin 636 is provided on the tightening rotating seat 631. Two symmetrically arranged tightening rotating rods 632 are provided on both sides of the tightening rotating seat 631. The middle part of the tightening rotating rod 632 is movably connected to the tightening rotating seat 631. The ends of the two tightening rotating rods 632 are respectively connected to the cylinder body and the piston rod of the tightening cylinder 633. A tightening device 634 and a tightening chain 635 are movably connected between the other ends of the two tightening rotating rods 632. The tightening chain 635 is arranged on the outer side of the tightening device 634. The tail of the tightening device 634 is movably connected to the tightening rotating seat 631 and is positioned by the tightening device positioning pin 636.

[0034] The utility model provides a pneumatic heel lasting machine through improvement, and its working principle is as follows:

[0035] After the pneumatic heel lasting machine is powered on and ventilated and started, the control panel 3 can perform program control on the machine, and the foot switch 4 can control the start of the work.

[0036] The pulling cylinder 53 on the support mechanism 5 can push the support cylinder 52 to rotate around the support cylinder shaft 510, and the support rod sleeve 54 and the internal support rod follow the support cylinder 52 to rotate, and the support cylinder 52 can push the support rod to move up and down, and the L-shaped support seat 56 and the support rod move up and down synchronously, and the support platform 59 and the L-shaped support seat 56 perform up and down reciprocating motion synchronously. Due to this structure, the shoe last on the last seat 55 and the support platform 59 can rotate, and the support platform 59 can move up and down, and the movement is continuous, which is convenient for quick removal and placement of the last, thereby improving the circulation work efficiency.

[0037] The positioning mechanism 61 on the sweeper tightening mechanism 6 performs angular rotation displacement with the positioning rotation axis 612 as the center through the power of the positioning rotation cylinder 613; the positioning mechanism 61 is reset by the tension of the positioning reset spring 617; the positioning rod 618 can fine-tune the height through the positioning adjustment rod 616, and the rotation height is detected by the height detection device 9, thereby ensuring that the heel molding position is consistent.

[0038] The sweeping knife cylinder 621 on the sweeping knife mechanism 62 pushes the sweeping knife transmission rod 622 to link the sweeping knife connecting rod 623, and the sweeping knife connecting rod 623 pushes the sweeping knife seat 624, so that the sweeping knife 625 can open and close reciprocating motion through the power of the sweeping knife cylinder 621. The sweeping knife cylinder 621 adopts an adjustable stroke structure, which can better control the opening and closing size of the sweeping knife 625 according to the size of the shoe. It has a wide range of applicability and the opening and closing force of the sweeping knife is also softer.

[0039] The tightening mechanism 63 forms a lever structure by combining a tightening rotating seat 631 and a tightening cylinder 633, so that the tightening chain 635 is opened and closed by the power of the tightening cylinder 633, and the tightener 634 is opened and closed by the guidance of the tightener positioning pin 636. The use of pneumatic pulling force is more flexible and the pulling effect is more uniform.

[0040] In summary, the utility model is a pneumatic heel lasting machine, which adopts a pneumatic structure to drive the whole machine, without the need for additional hydraulic oil, and cooperates with an air storage tank to make the movements of each pneumatic structure uniform and soft, the lasting and pressing effect is stable, the whole machine is simple to operate and easy to maintain, saves electricity consumption, reduces heat emission, and reduces the low-temperature investment cost of the factory.

[0041] The above description is only a preferred embodiment of the present utility model, so all equivalent changes or modifications made according to the structure, features and principles described in the scope of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A pneumatic hem-lasting machine, comprising a frame (1), a chassis (2), a control screen (3), a foot switch (4), a support mechanism (5), and a sweeper tightening mechanism (6), characterized in that: The frame (1) is provided with a frame plate (10), the lower part of the frame (1) is provided with a universal wheel (7), the chassis (2) is arranged on the upper part of the frame (1), the control screen (3) is arranged on the upper part of the chassis (2), a support base plate (50) is provided on the frame plate (10), and sweeping knife tightening supports (8) are provided on the frame plate (10) on both sides of the support base plate (50), the support mechanism (5) is arranged on the support base plate (50), the sweeping knife tightening mechanism (6) is arranged on the upper part of the sweeping knife tightening support (8), a positioning height detection device (9) is provided inside the frame (2) above the sweeping knife tightening mechanism (6), and a gas storage tank (11) is provided on the frame (1) below the frame plate (10), and the support mechanism (5) and the sweeping knife tightening mechanism (6) are arranged correspondingly up and down; The bottom surface of the support platform seat plate (50) is provided with a support platform cylinder seat (51), the bottom of the support platform cylinder seat (51) is provided with a support platform cylinder rotating shaft (510), the inside of the support platform cylinder seat (51) is movably connected with a support platform cylinder (52) via the support platform cylinder rotating shaft (510), the upper part of the cylinder body of the support platform cylinder (52) is provided with a support platform support rod sleeve (54), the inside of the support platform support rod sleeve (54) is provided with a support platform support rod, the support platform support rod is fixedly connected to the piston rod of the support platform cylinder (52), and the bottom surface of the support platform cylinder seat (51) is also provided with a pulling cylinder (53), the piston rod of the pulling cylinder (53) is connected to the support platform support rod sleeve ( 54), the support rod sleeve (54) is movably connected to the lower side of the support platform, the support rod sleeve (54) extends to the upper side of the support platform seat plate (50), and the top of the support rod sleeve (54) is provided with a last seat (55), the upper side of the support rod sleeve (54) is provided with an opening, the upper part of the support rod is connected with an L-shaped support support seat (56), the L-shaped support support seat (56) is fixedly connected to the support rod through the opening on the upper side of the support rod sleeve (54), a support bridge (57) is provided on the L-shaped support support seat (56), a support movable seat (58) is provided on the support bridge (57), and a support platform (59) is provided on the support movable seat (58); The sweeping blade tightening mechanism (6) comprises a sweeping blade tightening top plate (60), the sweeping blade tightening top plate (60) being fixed to the top of a sweeping blade tightening support (8), the sweeping blade tightening top plate (60) being provided with a positioning mechanism (61), a sweeping blade mechanism (62), and a tightening mechanism (63), the sweeping blade tightening mechanism (6) being further provided with a sweeping blade upper cover plate (620) and a sweeping blade lower cover plate (630), the sweeping blade upper cover plate (620) being fixed to the bottom of the sweeping blade tightening top plate (60), and a cover plate pad (640) being provided between the sweeping blade upper cover plate (620) and the sweeping blade lower cover plate (630).

2. A pneumatic heel lasting machine according to claim 1, characterized in that: The positioning mechanism (61) comprises a positioning rotating seat (610) and a positioning rotating plate (611). The positioning rotating seat (610) is fixedly arranged at a middle position above the sweeping knife tightening top plate (60). One end of the positioning rotating plate (611) is movably connected to the positioning rotating seat (610) via a positioning rotating shaft (612). A positioning rotating cylinder (613) is provided on the positioning rotating plate (611). The piston rod of the positioning rotating cylinder (613) extends to the lower part of the positioning rotating plate (611) and a rotating support wheel (614) is provided at the end thereof. The positioning rotating plate (611) The other end of the positioning rod sliding seat (615) is provided with a positioning rod sliding seat (615), and a positioning rod (618) is provided on the positioning rod sliding seat (615). The positioning rod (618) and the positioning rod sliding seat (615) are slidably connected, and the positioning rod (618) and the positioning rod (616) are threadedly connected. Both sides of the positioning rod sliding seat (615) are provided with positioning reset springs (617), and the other end of the positioning reset spring (617) is connected to the sweeping knife tightening top plate (60). The positioning rod (618) and the height detection device (9) are arranged correspondingly up and down; The sweeping blade mechanism (62) comprises a sweeping blade cylinder (621), the sweeping blade cylinder (621) is fixed to the side of the sweeping blade tightening top plate (60), a sweeping blade transmission rod (622) is provided on the piston rod of the sweeping blade cylinder (621), two symmetrically arranged sweeping blade seats (624) are provided between the sweeping blade upper cover plate (620) and the sweeping blade lower cover plate (630), a sweeping blade connecting rod (623) is connected between the sweeping blade seat (624) and the sweeping blade transmission rod (622), and a sweeping blade (625) is provided on the sweeping blade seat (624); The tightening mechanism (63) comprises a tightening rotating seat (631) and a tightening cylinder (633). The tightening rotating seat (631) is fixed below the lower cover plate (630) of the sweeping knife. A tightener positioning pin (636) is provided on the tightening rotating seat (631). Two symmetrically arranged tightening rotating rods (632) are provided on both sides of the tightening rotating seat (631). The middle part of the tightening rotating rod (632) is movably connected to the tightening rotating seat (631). The ends of the two tightening rotating rods (632) are respectively connected to the cylinder body and the piston rod of the tightening cylinder (633); a tightener (634) and a tightening chain (635) are movably connected between the other ends of the two tightening rotating rods (632); the tightening chain (635) is arranged on the outer side of the tightener (634); the tail of the tightener (634) is movably connected to the tightening rotating seat (631) and is positioned by a tightener positioning pin (636).

3. The pneumatic heel lasting machine according to claim 1, characterized in that: The platform support mechanism (5) is angularly rotated around the platform support cylinder rotating shaft (510) through the power of the pulling cylinder (53).

4. The pneumatic heel lasting machine according to claim 1, characterized in that: The L-shaped support platform support (56) is synchronized with the support platform support rod and performs up and down reciprocating motion through the power of the support platform cylinder (52); the support platform (59) is synchronized with the L-shaped support platform support (56) and performs up and down reciprocating motion.

5. The pneumatic heel lasting machine according to claim 2, characterized in that: The positioning mechanism (61) performs angular rotation displacement with the positioning rotation axis (612) as the center through the power of the positioning rotation cylinder (613); the positioning mechanism (61) is reset through the tension of the positioning reset tension spring (617); and the positioning mechanism (61) detects the rotation height through the height detection device (9).

6. The pneumatic heel lasting machine according to claim 2, characterized in that: The sweeping knife (625) is synchronized with the sweeping knife seat (624) and performs an opening and closing reciprocating motion by the power of the sweeping knife cylinder (621); the tightening chain (635) is synchronized with the tightening rotating rod (632) and performs an opening and closing motion by the power of the tightening cylinder (633); the tightener (634) and the tightening chain (635) move synchronously.

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