A pressing mechanism and sole pressing machine for shoemaking

Abstract

The invention relates to a pressing mechanism and a sole pressing machine for shoemaking, the pressing mechanism is provided with a supporting seat, a telescopic cavity is arranged on the supporting seat, and a following material is arranged in the telescopic cavity; when the telescopic cavity is contracted, the following material outputs power to drive a profiling block, the profiling block extends to the pressed object and presses the pressed object; the profiling block is arranged on the corresponding side of the telescopic cavity and can extend according to the curvature of the pressed object, so that the front end of the profiling block can be arranged according to the curvature of the pressed object and give appropriate pressing force to the curvature of each region. The profiling block is synchronously stressed, and the pressure is balanced, so that the pressing effect is improved, the pressing is compact, flat and smooth, and the manufacturing and use performance of the sole pressing machine is optimized. The steel ball is pushed by the machine, the profiling block is pushed by the steel ball, the profiling block forms the curvature that matches the shoe when the profiling block meets the concave-convex part of the shoe, the shoe edge can be closely and flatly attached to the shoe edge according to the curvature, seamless pressing is realized, and the manufacturing efficiency and quality are improved.

Description

Technical Field

[0001] This invention relates to the field of shoemaking equipment technology, and in particular to the structure of a sole pressing machine for shoemaking. Background Technology

[0002] During shoe manufacturing, the upper and sole must be bonded together. This involves applying adhesive to the bottom surface of the upper and the top surface of the sole before bonding. To ensure a tighter bond, a machine commonly known as a sole presser is used to apply downward pressure to the upper and lateral pressure to the sides of both the upper and sole, thereby creating a strong bond between them.

[0003] Current shoe sole pressing machines use hydraulic systems to drive molding dies to press the sole and surrounding areas of the shoe. Traditionally, hydraulic cylinders directly push the pressing blocks, but these cylinders cannot be too small; insufficient pressure leads to poor adhesion and affects the fit between the pressing blocks and the shoe's edge shape. Furthermore, the pressure on different pressing blocks is uneven, resulting in inconsistent pressing during the pressing process, affecting the quality of the bonding. This is especially true when molding soles with significant variations in shape (such as mid-heel shoes), where the pressing blocks often fail to press areas with large curvature changes, leading to a lower yield rate. The reason for this is that the pressing blocks pushed by the hydraulic cylinder cannot move synchronously with the bottom blocks. When pressing areas with large curvature changes in the sole, the side blocks cannot adapt to the changes in the sole's height, resulting in some areas not being properly pressed. Summary of the Invention

[0004] The purpose of this invention is to provide a pressing mechanism that can closely conform to the curvature of the object being pressed, and a shoe-making sole pressing machine using the pressing mechanism for shoe production.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A pressing mechanism has a support base with a scaling cavity, into which a follower material is placed. When the scaling cavity contracts, the follower material outputs power to drive a contour block, causing the contour block to extend toward and press against the object being pressed. The contour block is arranged on the corresponding side of the scaling cavity and can extend adaptively according to the curvature of the object being pressed, so that the forward end of the contour block can conform to the curvature of the object being pressed and provide appropriate pressing force for each corresponding area.

[0007] The above scheme is further described in that the accompanying material is a number of granular elements, and a power pusher is provided in the scaling cavity; when the scaling cavity is in the contracted state, the power pusher pushes the accompanying material, causing the accompanying material to move in the direction of the contour block and support the contour block.

[0008] The above scheme is further described in that the power push block and the contour block are respectively set at the two opposite ports of the scaling cavity, and the power push block is connected to the oil cylinder; the contour block is a flat block and is arranged sideways, with adjacent contour blocks abutting each other, and the contour block also forms a reset linkage relationship with the power push block.

[0009] A further improvement in the above scheme is that the hydraulic cylinder is mounted on the support base and located behind the power push block, and the extension and retraction direction of the hydraulic cylinder is the same as the movement direction of the power push block.

[0010] The above solution is further described as follows: the support base is a hollow frame structure formed by combining a base plate, two side plates and a top cover; there are two or more hydraulic cylinders fixed side by side on the base plate; the two or more hydraulic cylinders arranged side by side move synchronously; the telescopic end of the hydraulic cylinder is provided with an annular groove, and the rear end of the power push block is provided with a U-shaped claw; the axial connection between the telescopic end of the hydraulic cylinder and the power push block is achieved by the engagement of the annular groove and the U-shaped claw.

[0011] The above scheme is further described as follows: the contour block is provided with an elongated through hole, the length direction of which is the same as the extension direction of the contour block; a reset crossbar is inserted into the elongated through hole, the axis of which is perpendicular to the extension direction of the contour block, and the end of the reset crossbar extends out of the scaling cavity and is connected to the power push block through a pull rod. When the power push block is reset, the pull rod and the reset crossbar drive the contour block to reset. The length of the elongated through hole and the installation position of the reset crossbar meet the requirements of the contour block's extension, pressing and reset operation.

[0012] The above solution is further described in that the two ends of the reset crossbar extend from both sides of the scaling cavity and are connected to one end of the pull rod, and the other end of the pull rod is connected to a pre-set protrusion on the power push block, and the protrusion extends from the pre-set clearance part of the support seat.

[0013] A further aspect of the above solution is that the top pressing side of the contour block is provided with a shaping substrate, which is in close contact with the object being pressed under the pressure of the contour block, and the shaping substrate is bent to form an arc that matches the object being pressed.

[0014] A further improvement in the above scheme is that the thickness of the side-mounted contour block is greater than the diameter of the accompanying material.

[0015] A sole pressing machine for shoemaking, which has the aforementioned pressing mechanism.

[0016] This invention features a scientifically sound and rationally designed structure with low investment costs. It utilizes contour blocks arranged along the corresponding sides of the scaling cavity, which can adaptively adjust to the curvature of the object being pressed. This allows the contour blocks to conform to the curvature of the object and apply appropriate pressing force to each corresponding area. The contour blocks are simultaneously stressed, resulting in balanced pressure and improved pressing tightness, flatness, and smoothness. Power from the material output drives the contour blocks, causing them to extend towards and press against the object, ensuring balanced power and good pressing synchronization. When used in a sole pressing machine, it optimizes the machine's manufacturing and performance. The mechanically driven steel ball propels the contour blocks, which in turn push the contour blocks. Upon contact with the shoe's uneven surfaces, the contour blocks form a curvature that matches the shoe's shape, achieving a tight and flat fit along the shoe edge, resulting in seamless pressing and improved production efficiency and quality. Attached Figure Description

[0017] Appendix Figure 1 This is a schematic diagram of a preferred embodiment of the present invention;

[0018] Appendix Figure 2 for Figure 1 Schematic diagram of the internal structure of the embodiment;

[0019] Appendix Figure 3 for Figure 1 Schematic diagram of partial structural decomposition in the embodiment;

[0020] Appendix Figure 4 for Figure 1 A schematic diagram of the contour block structure in the embodiment;

[0021] Appendix Figure 5 for Figure 1 A schematic diagram illustrating the application of the embodiment to a bottom pressing machine;

[0022] Appendix Figure 6 for Figure 5 A top view of an embodiment. Detailed Implementation

[0023] The following will further explain the concept, specific structure, and technical effects of the present invention in conjunction with the accompanying drawings, so as to fully understand the purpose, features, and effects of the present invention.

[0024] It should be noted that in the description of this invention, the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., which indicate the direction or positional relationship, are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and is not intended to indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this invention.

[0025] See Figure 1 , 2Figures 3, 4, 5, and 6 are schematic diagrams of a preferred embodiment of the present invention. The present invention relates to a pressing mechanism, which has a support base 1. A scaling cavity 11 is constructed on the support base 1, and a follower material 2 is placed in the scaling cavity 11. More preferably, the support base 1 is a hollow frame structure formed by a base plate 12, two side plates 13, and a top cover 14. The scaling cavity 11 is the hollow part of the support base 1, resulting in a simple structure that is easy to manufacture and assemble. When the scaling cavity 11 contracts, the follower material 2 outputs power to drive the contour block 3, causing the contour block 3 to extend towards and press against the object being pressed. The contour blocks 3 are arranged on the corresponding sides of the scaling cavity 11 and can extend adaptively according to the curvature of the object being pressed, so that the forward end of the contour block 3 can conform to the curvature of the object being pressed and provide appropriate pressing force to the curvature of each corresponding area. This invention utilizes the contraction of the expansion cavity 11 to act on the follower material 2, so that the follower material 2 can synchronously act on multiple arranged contour blocks 3. Then, the contour blocks 3 are extended by adaptively matching the curvature of the object being pressed, so that the contour blocks 3 can fit with the curvature of the object being pressed and provide appropriate pressing force to the curvature of each area, ensuring balanced pressing and achieving the effect of tight and flat fit with the curvature, reducing the possibility of incomplete pressing.

[0026] Figure 1 , 2 As shown in Figures 3, 4, 5, and 6, in this embodiment, the accompanying material 2 consists of several granular elements, and a power pusher 4 is provided in the scaling cavity 11. Preferably, the accompanying material 2 is a steel ball with sufficient hardness; however, other hard particles, such as sand, are also possible. When the scaling cavity 11 is contracted, the power pusher 4 pushes the accompanying material 2, causing it to move towards the contour block 3 and support it. The power pusher 4 also pushes the accompanying material 2 horizontally, causing it to move and press against each other. The accompanying material 2 supports the contour block 3, and according to the extension of different contour blocks 3, the accompanying material 2 moves adaptively, allowing the contour block 3 to extend according to the curvature of the object being pressed and to provide appropriate pressing force to each corresponding area within the same scaling cavity. The contour blocks 3 are simultaneously subjected to force, resulting in balanced pressure and improved pressing effect.

[0027] In this embodiment, the power push block 4 and the contour block 3 are respectively located at the two ends of the scaling cavity 11. Preferably, the power push block 4 and the contour block 3 form a linear relative relationship, ensuring smooth and balanced transmission. The power push block 4 is connected to the hydraulic cylinder 5. The extension and retraction of the hydraulic cylinder 5 drives the power push block 4 to move, realizing mechanical pushing of the follower material 2. The follower material 2 then pushes the contour block. The structure is simple, the investment cost is low, and the working environment is easy to control and maintain. The contour block 3 is a flat block arranged sideways. Adjacent contour blocks 3 are close together to form a row. During operation, when the contour block 3 encounters the concave or convex part of the object being pressed, it extends automatically, forming an arc that matches the object being pressed and pressing against it to achieve the pressing operation. In this embodiment, the contour block 3 also forms a reset linkage relationship with the power push block 4. When the power push block 4 resets, it drives the contour block 3 to reset for the next pressing operation. In this embodiment, the thickness of the side-mounted contour block 3 is greater than the diameter of the accompanying material 2. This ensures that the accompanying material 2 effectively supports the corresponding end of the contour block 3, allowing the contour block 3 to extend accurately and effectively for pressing work.

[0028] The hydraulic cylinder 5 is mounted on the support base 1 and located behind the power push block 4. The extension and retraction direction of the hydraulic cylinder 5 is the same as the movement direction of the power push block 4, achieving linear push and pull. Furthermore, in this embodiment, there are two or more hydraulic cylinders 5 fixed side-by-side on the base plate 12. The two or more hydraulic cylinders 5 arranged side-by-side move synchronously to obtain sufficient pushing force, satisfying the pressing force and improving pressure balance. In this embodiment, the hydraulic cylinder 5 is clamped and fixed by the base plate 12 and the upper cover 14, achieving upper and lower fixation and internal concealment, which also helps protect the hydraulic cylinder. For ease of assembly and maintenance, the upper cover 14 in this embodiment is divided into front and rear sections. The front section covers and constructs the expansion and contraction cavity 11, and the rear section covers and fixes the hydraulic cylinder. In this embodiment, oil guide holes 15 are also opened on the base plate 12 and the upper cover 14 respectively, facilitating communication between the hydraulic cylinder 5 and external pressure oil. The telescopic end of the hydraulic cylinder 5 is provided with an annular groove 51, and the rear end of the power push block 4 is provided with a U-shaped claw 41. The axial connection between the telescopic end of the hydraulic cylinder 5 and the power push block 4 is achieved by the engagement of the annular groove 51 and the U-shaped claw 41. The structure is simple and convenient for disassembly and maintenance.

[0029] In this embodiment, the reset linkage between the contour block 3 and the power push block 4 is achieved through the following structure: A long through hole 31 is provided on the contour block 3, the length direction of which is the same as the extension direction of the contour block 3; a reset crossbar 6 is inserted into the long through hole 31, the axis of which is perpendicular to the extension direction of the contour block 3, and the end of the reset crossbar 6 extends out of the scaling cavity 11 and is connected to the power push block 4 via a pull rod 7. When the power push block 4 resets, the pull rod 7 and the reset crossbar 6 drive the contour block 3 to reset. The length of the long through hole 31 and the installation position of the reset crossbar 6 meet the requirements for the extension, pressing, and reset of the contour block 3. During reset, the reset crossbar 6 acts on one end of the long through hole 31 and pulls the contour block 3 to reset. The structure is simple, easy to control, and the mechanical movement is stable and reliable. When the expansion and contraction cavity 11 contracts, the hydraulic cylinder 5 drives the power push block 4 to move, and the pull rod 7 drives the reset crossbar 6 to follow the movement. Utilizing the characteristics of the long through hole 31, the reset crossbar 6 releases the contour block 3. At this time, the contour block 3 can extend and press under the push of the material 2, realizing the extension and pressing work of the contour block 3.

[0030] In this embodiment, the two ends of the reset crossbar 6 extend from the scaling cavity 11 and connect to one end of the pull rod 7. The other end of the pull rod 7 connects to a pre-set protruding pin 42 on the power push block. The protruding pin 42 extends from a pre-set clearance portion of the support base 1. In this embodiment, clearance holes are provided on the side plate 13 corresponding to the protruding portions of the reset crossbar 6 and the protruding pin 42 to satisfy the movement of the reset crossbar 6 and the protruding pin 42. The structure is simple and reasonable, satisfies the drive connection, and optimizes the distribution connection between components. This facilitates the modularization of the pressing mechanism and makes subsequent installation and implementation easier.

[0031] Figure 1 As shown, in this embodiment, the top pressing side of the contour block 3 is provided with a shaping substrate 8. Under the pressure of the contour block 3, the shaping substrate 8 is tightly attached to the object being pressed, and the shaping substrate 8 is bent to form an arc that matches the object being pressed. Preferably, the shaping substrate 8 is a rubber sheet or a silicone sheet, which serves as a support and increases the continuity of the pressed surface, while also protecting the object being pressed. The shaping substrate 8 can be fixed to the support base 1 or the machine carrier.

[0032] Figure 5 , 6 As shown, the present invention also provides a sole pressing machine for shoe manufacturing. The sole pressing machine has the above-mentioned pressing mechanism. It uses mechanical force to push steel balls, which in turn push the shaping block. When the shaping block touches the concave and convex parts of the shoe, it forms an arc that matches the shoe. This achieves the effect of the shoe edge being able to fit tightly and flat by following the arc, thus realizing seamless pressing and improving production efficiency and quality.

[0033] In this embodiment, the pressing mechanism is located on the left and right sides of the shoe outsole placed on the pressing machine, and the pressing mechanisms on the left and right sides are symmetrical, which facilitates manufacturing and assembly, realizes left and right pressing, and further enables synchronous control of the pressing operation. Of course, in practical applications, a corresponding pressing mechanism can also be arranged on the lower side of the outsole to realize three-way pressing of the shoe outsole, so that the upper and the shoe outsole can form a tight bond. The contour block forms an arc that matches the shoe when it encounters the concave and convex parts of the shoe, so that the shoe edge can fit tightly and flatly according to the arc, achieving seamless pressing.

[0034] While preferred embodiments of the present invention have been described above in conjunction with the accompanying drawings, the present invention should not be limited to structures and operations that are exactly the same as those described above and shown in the drawings. Those skilled in the art can make many equivalent improvements and variations to the above embodiments through logical analysis, reasoning, or limited experiments without departing from the concept and scope of the present invention, but all such improvements and variations should fall within the scope of protection claimed by the present invention.

Claims

1. A pressing mechanism, characterized in that, It has a support base (1) with a scaling cavity (11) and a follower material (2) placed in the scaling cavity (11); when the scaling cavity (11) contracts, the follower material (2) outputs power to drive the contour block (3), so that the contour block (3) extends towards the object being pressed and presses against the object being pressed; the contour block (3) is arranged on the corresponding side of the scaling cavity (11) and can extend adaptively according to the curvature of the object being pressed, so that the front end of the contour block (3) can be arranged in a contour shape according to the curvature of the object being pressed and give appropriate pressing force to the curvature of each area; The accompanying material (2) consists of several granular elements, and a power pusher (4) is provided in the scaling cavity (11); when the scaling cavity (11) is in a contracted state, the power pusher (4) pushes the accompanying material (2), causing the accompanying material (2) to move toward the contour block (3) and support the contour block; the power pusher (4) and the contour block (3) are respectively provided at the two opposite ends of the scaling cavity (11), and the power pusher (4) is connected to the oil cylinder (5); the contour block (3) is a flat block arranged sideways, with adjacent contour blocks (3) close together, and the contour block (3) also forms a reset linkage relationship with the power pusher (4); the contour block (3) The long through hole (31) is provided on the shape block (3), and the length direction of the long through hole (31) is the same as the extension direction of the shape block (3). A reset crossbar (6) is inserted into the long through hole (31). The axial direction of the reset crossbar (6) is perpendicular to the extension direction of the shape block (3), and the end of the reset crossbar (6) extends out of the scaling cavity (11) and is connected to the power push block (4) through the pull rod (7). When the power push block (4) is reset, the pull rod (7) and the reset crossbar (6) drive the shape block (3) to reset. The length of the long through hole (31) and the installation position of the reset crossbar (6) meet the requirements of the extension, pressing and reset of the shape block (3).

2. The pressing mechanism according to claim 1, characterized in that, The hydraulic cylinder (5) is mounted on the support base (1) and located on the rear side of the power push block (4). The extension and retraction direction of the hydraulic cylinder (5) is the same as the movement direction of the power push block (4).

3. The pressing mechanism according to claim 2, characterized in that, The support base (1) is a hollow frame structure formed by the combination of a base plate (12), two side plates (13) and a top cover (14). There are two or more oil cylinders (5) and they are fixed side by side on the base plate (12). The two or more oil cylinders (5) arranged side by side move synchronously. The telescopic end of the oil cylinder (5) is provided with an annular groove (51), and the rear end of the power push block (4) is provided with a U-shaped claw (41). The telescopic end of the oil cylinder (5) is connected to the power push block (4) through the engagement of the annular groove (51) and the U-shaped claw (41).

4. The pressing mechanism according to claim 1, characterized in that, The two ends of the reset crossbar (6) extend from both sides of the scaling cavity (11) and are connected to one end of the pull rod (7). The other end of the pull rod (7) is connected to the pre-set protrusion (42) on the power push block. The protrusion (42) extends from the pre-set clearance part of the support seat (1).

5. A pressing mechanism according to claim 1, characterized in that, The top pressing side of the contour block (3) is provided with a shaping substrate (8), which is pressed tightly against the object under the pressure of the contour block (3), and the shaping substrate (8) is bent to form an arc that matches the object being pressed.

6. The pressing mechanism according to claim 1, characterized in that, The thickness of the shaped block (3) is greater than the diameter of the accompanying material (2).

7. A sole pressing machine for shoe making, characterized in that, The pressing machine has a pressing mechanism according to any one of claims 1 to 6.

Images