A shoe last removal device

Abstract

A shoe last removal device includes a worktable, a shoe last, and a motor. A positioning cavity is formed in the upper center of the worktable, and a movable horizontal positioning column passes horizontally through the positioning cavity. A vertically extending moving cavity is formed in the center left of the positioning cavity on the worktable, and a movable vertical positioning column passes vertically through the moving cavity. A shifting push block is inclinedly arranged on the horizontal positioning column. A positioning column head is connected to the left end of the horizontal positioning column, and a threaded groove is formed on the right end of the horizontal positioning column. A screw is connected to the output end of the motor, and the screw is threaded into the threaded groove of the horizontal positioning column. A shifting push groove is formed on the vertical positioning column, which cooperates with the shifting push block, and the shifting push block is embedded in the shifting push groove. This invention automatically converts horizontal movement into the lifting and lowering action of the vertical positioning column by the inclined surface cooperation between the shifting push block and the shifting push groove, realizing the mechanical linkage of horizontal and vertical movements.

Description

Technical Field

[0001] This utility model relates to the field of shoe last removal technology, and in particular to a leather shoe last removal device. Background Technology

[0002] In the shoe manufacturing process, the shoe last, as a shaping mold, needs to be removed promptly after the upper and sole are bonded. Traditional last removal methods mostly rely on manual tapping or prying, which is inefficient and easily damages the shoe upper. While existing mechanical last removal devices can reduce manpower, they still have some problems: the horizontal movement of the shoe last positioning and the longitudinal movement of the last removal action rely on multiple independent drive mechanisms, resulting in complex device structures, high costs, and difficulty in ensuring synchronization. During last removal, the top block directly and rigidly pushes out with a large impact force, which can easily damage the shoe last or shoe upper, especially on soft leather shoes. In addition, the stroke and angle of the last removal top block in general last removal devices are fixed, making them unable to adapt to shoe lasts of different sizes or shapes, resulting in poor versatility. Summary of the Invention

[0003] This utility model aims to address the shortcomings of existing technologies by providing a shoe last removal device.

[0004] To achieve the above objectives, this utility model adopts the following technical solution:

[0005] A shoe last removal device includes a worktable, a shoe last, and a motor. A positioning cavity is formed in the upper center of the worktable, and a movable horizontal positioning post is horizontally inserted into the positioning cavity. A vertically extending moving cavity is formed on the worktable at the left-hand side of the positioning cavity, and a movable vertical positioning post is vertically inserted into the moving cavity. A displacement pushing block is inclinedly arranged on the horizontal positioning post. A positioning post head is connected to the left end of the horizontal positioning post, and a threaded groove is formed on the right end of the horizontal positioning post. The motor is located on the right side of the worktable, and a screw is connected to the output end of the motor. The screw is threaded into the threaded groove of the horizontal positioning post. A [missing information - likely a design feature] is formed on the vertical positioning post. The positioning cavity has a sliding groove that works in conjunction with the shifting push block. The shifting push block is embedded in the shifting push groove. A sliding groove is provided on the bottom right side of the positioning cavity along the axis of the horizontal moving positioning column. A slider is fixed at the bottom of the horizontal moving positioning column and is slidably connected in the sliding groove. A shoe last connecting rod is longitudinally and movably inserted on the left side of the positioning cavity. The top of the shoe last connecting rod is connected to the shoe last. A positioning hole is provided on the shoe last connecting rod. The head of the positioning column is telescopically inserted into the positioning hole. A connecting block is fixed at the top of the longitudinal moving positioning column. A threaded groove is provided on the left side of the connecting block. An outer sleeve is threadedly connected in the threaded groove. An inner connecting rod is slidably inserted in the outer sleeve. The protruding end of the inner connecting rod is connected to a last removal top block.

[0006] The front and rear sides of the positioning cavity are connected.

[0007] A limiting plane is cut on the horizontal moving positioning column, and the shifting push block is fixed on the limiting plane.

[0008] The lower half of the longitudinally moving positioning column is cut with a moving plane, and the displacement pushing groove is opened in the middle of the moving plane.

[0009] The displacement pushing groove is opened at an angle, and the angle of the displacement pushing groove matches the angle of the displacement pushing block.

[0010] The outer tube is equipped with a spring, and the two ends of the spring are respectively connected to the end of the inner connecting rod and the inner wall of the outer tube.

[0011] A protective bracket is provided on the left side of the positioning cavity, and the horizontally movable positioning column slides through the protective bracket.

[0012] The beneficial effects of this utility model are: by cooperating with the inclined surface of the shifting push block and the shifting push groove, the horizontal movement is automatically converted into the lifting action of the longitudinal movement positioning column, realizing the mechanical linkage of horizontal and longitudinal movements. The spring forms an elastic buffer structure between the inner connecting rod and the outer tube, which can absorb the impact force when the last-removing top block contacts the shoe last, and prevent the deformation of the shoe last or shoe upper caused by hard pushing out. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the horizontal moving positioning column structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the longitudinal moving positioning column structure of this utility model;

[0016] Figure 4 This is a schematic diagram of the connection structure of the top block for removing the last from the casing according to this utility model;

[0017] In the diagram: 1-Workbench; 2-Motor; 3-Screw; 4-Horizontal moving positioning column; 41-Limiting plane; 42-Shifting push block; 43-Positioning column head; 44-Threaded groove; 5-Slider; 6-Slide groove; 7-Moving cavity; 8-Longitudinal moving positioning column; 81-Moving plane; 82-Shifting push groove; 9-Reinforcing bracket; 10-Positioning cavity; 11-Shoe last connecting rod; 12-Shoe last; 13-Lasting top block; 14-Inner connecting rod; 141-Spring; 15-Outer sleeve; 16-Connecting block; 17-Positioning hole;

[0018] The following will describe in detail the embodiments of this utility model with reference to the accompanying drawings. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0020] A shoe last removal device includes a workbench 1, a shoe last 12, and a motor 2. A positioning cavity 10 is formed in the upper center of the workbench 1. A movable horizontal positioning post 4 is horizontally inserted into the positioning cavity 10. A vertically extending moving cavity 7 is formed on the workbench 1 at the left center of the positioning cavity 10. A movable vertical positioning post 8 is vertically inserted into the moving cavity 7. A shifting push block 42 is inclinedly arranged on the horizontal moving positioning post 4. A positioning post head 43 is connected to the left end of the horizontal moving positioning post 4, and a threaded groove 44 is formed on the right end of the horizontal moving positioning post 4. The motor 2 is located on the right side of the workbench 1. A screw 3 is connected to the output end of the motor 2. The screw 3 is threaded into the threaded groove 44 of the horizontal moving positioning post 4. A shifting push groove 82 is formed on the vertical moving positioning post 8, which cooperates with the shifting push block 42. The shifting push block 42 is embedded in the shifting push groove 82. A groove 6 is provided on the bottom right side of the positioning cavity 10 along the axis of the horizontally moving positioning column 4. A slider 5 is fixed at the bottom of the horizontally moving positioning column 4 and is slidably connected in the groove 6. A shoe last connecting rod 11 is longitudinally and movably inserted on the left side of the positioning cavity 10. The top of the shoe last connecting rod 11 is connected to the shoe last 12. A positioning hole 17 is provided on the shoe last connecting rod 11. The positioning column head 43 is telescopically inserted into the positioning hole 17. A connecting block 16 is fixed on the top of the longitudinally moving positioning column 8. A threaded groove is provided on the left side of the connecting block 16. An outer sleeve 15 is threadedly connected in the threaded groove. An inner connecting rod 14 is slidably inserted in the outer sleeve 15. The protruding end of the inner connecting rod 14 is connected to the last removal top block 13. The threaded connection design between the outer sleeve 15 and the connecting block 16 allows manual rotation to adjust the horizontal extension length of the last removal top block 13, adapting to the last removal stroke requirements of different sized shoe lasts 12.

[0021] The front and rear sides of the positioning cavity 10 are connected.

[0022] A limiting plane 41 is cut on the horizontal moving positioning column 4, and the shifting push block 42 is fixed on the limiting plane 41.

[0023] The lower half of the longitudinally moving positioning column 8 is cut with a moving plane 81, and a displacement pushing groove 82 is formed in the middle of the moving plane 81. The displacement pushing groove 82 is inclined, and the inclination of the displacement pushing groove 82 matches the inclination of the displacement pushing block 42. The limiting plane 41 and the moving plane 81 prevent interference between the displacement pushing block 42 and the longitudinally moving positioning column 8 during movement, thereby improving the smoothness of the mechanism's operation.

[0024] The outer tube 15 is equipped with a spring 141. The two ends of the spring 141 are respectively connected to the end of the inner connecting rod 14 and the inner wall of the outer tube 15. The spring 141 can absorb the impact force when the top of the last comes into contact with the shoe last 12, and prevent the shoe last or shoe surface from being deformed due to hard pushing out. It is especially suitable for soft leather or delicate shoe shapes.

[0025] A protective bracket 9 is provided on the left side of the positioning cavity 10. The horizontally moving positioning column 4 is slidably connected to the protective bracket 9. The protective bracket 9 provides sliding support for the horizontally moving positioning column 4, further reducing radial sway during horizontal movement and extending the service life of the device.

[0026] When this invention is in operation, the motor 2 starts and drives the screw 3 to rotate. The screw 3 is threadedly connected to the horizontal moving positioning post 4. The rotation of the screw 3 drives the horizontal moving positioning post 4 to move horizontally. The slider 5 at the bottom of the horizontal moving positioning post 4 slides in the groove 6. The horizontal moving positioning post 4 moves to the left, which pushes the vertical moving positioning post 8 upward through the displacement pushing block 42, causing the last-removing top block 13 to move upward. The top surface of the last-removing top block 13 pushes the outer surface of the shoe upward. When the shoe is thin, the outer layer... The tube 15 is threadedly connected to the connecting block 16. Rotating the outer tube 15 adjusts the horizontal extension length of the last-removing top block 13, so that the last-removing top block 13 presses against the outer surface of the shoe. At this time, the motor 2 drives the horizontally moving positioning column 4 to move horizontally to the left, so that the positioning column head 43 is inserted into the positioning hole 17 on the shoe last connecting rod 11 to position the shoe last 12. At the same time, the longitudinally moving positioning column 8 drives the last-removing top block 13 to move upward. The pressing force of the side of the last-removing top block 13 against the outer surface of the shoe drives the shoe to complete the last-removing action.

[0027] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any improvements made using the inventive concept and technical solution of the present invention, or direct application to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A last removing device for a leather shoe, characterized in that, The system includes a workbench (1), a shoe last (12), and a motor (2). A positioning cavity (10) is located in the upper middle of the workbench (1). A movable horizontal positioning column (4) is horizontally inserted into the positioning cavity (10). A vertically penetrating moving cavity (7) is located on the workbench (1) at the left side of the center of the positioning cavity (10). A movable longitudinal positioning column (8) is vertically inserted into the moving cavity (7). A shifting push block (42) is inclinedly arranged on the horizontal moving positioning column (4). A positioning column head (43) is connected to the left end of the horizontal moving positioning column (4). A threaded groove (44) is provided on the right end of the horizontal moving positioning column (4). The motor (2) is located on the right side of the workbench (1). A screw (3) is connected to the output end of the motor (2). The screw (3) is threaded into the threaded groove (44) of the horizontal moving positioning column (4). A part is provided on the longitudinal moving positioning column (8) to cooperate with the shifting push block (42). The displacement pushing groove (82) is provided, and the displacement pushing block (42) is embedded in the displacement pushing groove (82). A sliding groove (6) is provided on the bottom right side of the positioning cavity (10) along the axis of the horizontal moving positioning column (4). A slider (5) is fixed at the bottom of the horizontal moving positioning column (4). The slider (5) is slidably connected in the sliding groove (6). A shoe last connecting rod (11) is longitudinally and movably inserted into the left side of the positioning cavity (10). The top of the shoe last connecting rod (11) is connected to the shoe last (12). The shoe last connecting rod (11) is provided with a positioning hole (17). The positioning pin (43) is telescopically inserted into the positioning hole (17). The top of the longitudinally moving positioning pin (8) is fixed with a connecting block (16). The left side of the connecting block (16) is provided with a threaded groove. The outer sleeve (15) is threadedly connected in the threaded groove. The inner connecting rod (14) is slidably inserted in the outer sleeve (15). The end of the inner connecting rod (14) is connected to the last removal top block (13).

2. A last removing device for a leather shoe according to claim 1, characterized in that The front and rear sides of the positioning cavity (10) are connected.

3. The shoe de-lasting device according to claim 1, wherein, A limiting plane (41) is cut on the horizontal moving positioning column (4), and the shifting push block (42) is fixed on the limiting plane (41).

4. A shoe de-lasting device according to claim 3, wherein The lower half of the longitudinal moving positioning column (8) is cut with a moving plane (81), and the displacement pushing groove (82) is opened in the middle of the moving plane (81).

5. A shoe de-lasting device according to claim 4, wherein The displacement push groove (82) is opened at an angle, and the angle of the displacement push groove (82) matches the angle of the displacement push block (42).

6. The shoe de-lasting device of claim 1, wherein The outer tube (15) is provided with a spring (141), and the two ends of the spring (141) are respectively connected to the end of the inner connecting rod (14) and the inner wall of the outer tube (15).

7. The shoe de-lasting device of claim 2, wherein A protective bracket (9) is provided on the left side of the positioning cavity (10), and the horizontally movable positioning column (4) slides through the protective bracket (9).

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