Novel air cylinder for toe cap shaping mechanism

Abstract

The utility model discloses a novel air cylinder for a toe cap shaping mechanism, which is characterized in that a connecting block which is pivotally connected with a swinging piece is fixedly arranged at the free end of a piston rod of the air cylinder, and a pressing piece which is in contact with a mold is locked on one side, far away from a cylinder body, of the swinging piece through a bolt; in the working process, the piston rod stretches out to enable the pressing piece to be close to and push the die, and in the process that the pressing piece makes contact with the die and pushes the die, the swing piece is stressed to make horizontal swing motion, and therefore automatic angle adjustment is achieved. Therefore, the pressing piece is always in full contact with the outer wall of the mold in the process, the mold is prevented from arching, the mold is in full contact with the toe cap, the shaping effect of the toe cap is improved, the production efficiency is effectively improved, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of shoemaking equipment, and particularly relates to a novel air cylinder for a shoe head shaping mechanism. Background Art

[0002] A shoe head shaping machine is a device used to shape the shoe head during the production and processing of shoes. During the shaping process, the shoe head is sleeved on a shoe last, and a mold supported by an elastic material cooperates with the shoe last to perform two-way extrusion and maintain for a period of time to achieve shaping.

[0003] As Figure 3 shown in the mold, when the existing shoe head shaping machine is in use, it mainly uses air cylinders. The execution end of the air cylinder pushes the mold from the outside, forcing the mold to be in contact with the shoe head. The overall shape of the mold is arc-shaped, and the number of air cylinders is usually multiple, which are distributed at intervals along the outer wall of the mold. Although multiple air cylinders are used to push multiple positions of the mold respectively, the traveling trajectory of the execution end of the air cylinder is a straight line and cannot be changed. It is difficult to make an adaptive angle adjustment during the process of pushing the mold. The execution end continuously pushes a local position of the mold in a fixed direction, which easily causes the position between the corresponding adjacent two execution ends of the mold to arch. The arched part does not maintain sufficient contact with the shoe head, resulting in poor shoe head shaping effect, requiring re-shaping, reducing production efficiency, and increasing production cost. Summary of the Utility Model

[0004] The main purpose of the utility model is to propose a novel air cylinder for a shoe head shaping mechanism, aiming to enable the execution end of the air cylinder to make an adaptive angle adjustment during the process of pushing the mold, so as to ensure that each position of the mold can maintain sufficient contact with the shoe head.

[0005] To achieve the above purpose, the utility model proposes a novel air cylinder for a shoe head shaping mechanism, which includes a cylinder body and a piston rod. A connecting block is provided at the free end of the piston rod. The connecting block can move away from the cylinder body as the piston rod extends and move closer to the cylinder body as the piston rod retracts. The connecting block is pivotally connected with a swinging member, and the swinging member can make a reciprocating swing in the horizontal direction relative to the connecting block. A pressing member for contacting the mold is locked on the side of the swinging member away from the cylinder body through bolts.

[0006] Preferably, a tension spring is further provided, and the tension spring is used to apply an elastic force to the piston rod in the direction of moving closer to the cylinder body towards the connecting block.

[0007] Preferably, a first screw rod is screwed on the bottom wall of the cylinder body, and a second screw rod is screwed on the bottom wall of the connecting block. One end of the tension spring is connected to the first screw rod, and the other end is connected to the second screw rod.

[0008] Preferably, the connecting block is provided with a slot, and a pin with a cap portion is inserted into the connecting block from bottom to top. A part of the pin is exposed in the slot, and the end of the pin away from the cap portion passes through the top wall of the connecting block and is exposed outside. A snap spring is fixedly sleeved on the exposed end of the pin to fixedly connect the pin to the connecting block. The swinging member is L-shaped, and the lower end of the swinging member extends into the slot in the horizontal direction and is sleeved on the part of the pin exposed in the slot, realizing the pivotal connection between the swinging member and the connecting block.

[0009] Preferably, two limiting portions are formed at intervals on one side of the cylinder block. The connecting block is provided with a limiting rod for passing between the two limiting portions. An extension portion for abutting against the limiting portion is formed at the end of the limiting rod away from the connecting block. The extension portion can move between a position abutting against the limiting portion and a position away from the limiting portion along with the extension and retraction movements of the piston rod.

[0010] Preferably, the limiting rod and the connecting block are of an integrally formed structure or a detachable connection structure. When it is a detachable connection structure, the limiting rod is locked by screws or fixed to the connecting block through a snap structure.

[0011] Preferably, a vertically extending strip-shaped groove is formed on the surface of the swinging member away from the cylinder block. The two ends of the strip-shaped groove respectively extend to penetrate the top wall and the bottom wall of the swinging member. An insertion portion adapted to the strip-shaped groove is formed on one side of the pressing member. The pressing member is inserted into the swinging member through the insertion and matching of the insertion portion and the strip-shaped groove and then locked by the bolt.

[0012] Preferably, the surface of the pressing member close to the mold is a plane or a curved surface.

[0013] In the technical solution of the present utility model, the connecting block pivotally connected with the swinging member is fixedly installed on the free end of the piston rod of the air cylinder, and the pressing member for contacting the mold is locked on the side of the swinging member away from the cylinder block through bolts, so that the pressing member can approach the mold as the piston rod extends and move away from the mold as the piston rod retracts. During work, when the piston rod extends, the pressing member approaches and pushes the mold. During the process of the pressing member contacting and pushing the mold, the swinging member is stressed to make a horizontal swinging movement, thereby realizing automatic angle adjustment to ensure that the pressing member always keeps full contact with the outer wall of the mold during this process, avoiding the mold from arching, so that the mold keeps full contact with the shoe head, thereby improving the shaping effect of the shoe head, effectively improving the production efficiency and reducing the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a three-dimensional view of the present utility model;

[0015] Figure 2 is an exploded view of the present utility model;

[0016] Figure 3 is a schematic view of the mold. Detailed implementation mode

[0017] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the scope of protection of the present invention.

[0018] It should be noted that if there are directional indications (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial...) involved in the embodiments of the present invention, then the directional indications are only used to explain the relative positional relationship and movement conditions between components in a certain specific posture (as shown in the accompanying drawings). If this specific posture changes, then the directional indications will also change accordingly.

[0019] In addition, if there are descriptions such as "first" or "second" involved in the embodiments of the present invention, then the descriptions of "first" or "second" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0020] The present invention provides a new type of air cylinder for a shoe toe shaping mechanism.

[0021] In the embodiment of the present invention, as Figures 1 to 3 shown, the new type of air cylinder for the shoe toe shaping mechanism includes a cylinder body 1 and a piston rod. A connecting block 2 is provided at the free end of the piston rod. The connecting block 2 can move away from the cylinder body 1 as the piston rod extends and move closer to the cylinder body 1 as the piston rod retracts. The connecting block 2 is pivotally connected with a swinging member 3. The swinging member 3 can reciprocally swing in the horizontal direction relative to the connecting block 2. A pressing member 4 for contacting the mold is locked on the side of the swinging member 3 away from the cylinder body 1 by bolts.

[0022] Specifically, a tension spring 5 is further provided. The tension spring 5 is used to apply an elastic force to the piston rod in the direction of moving closer to the cylinder body 1 towards the connecting block 2.

[0023] Specifically, a first screw rod 100 is rotatably connected to the bottom wall of the cylinder block 1, a second screw rod 200 is rotatably connected to the bottom wall of the connecting block 2, one end of the tension spring 5 is connected to the first screw rod 100, and the other end is connected to the second screw rod 200.

[0024] Specifically, the connecting block 2 is provided with a slot 21, a pin 6 with a cap portion 61 is inserted into the connecting block 2 from bottom to top, a part of the pin 6 is exposed in the slot 21, one end of the pin 6 away from the cap portion 61 passes through the top wall of the connecting block 2 and is exposed outside, and a snap spring 22 is fixedly sleeved on the exposed end of the pin 6 to fixedly connect the pin 6 to the connecting block 2. The swinging member 3 is L-shaped, and the lower end of the swinging member 3 extends into the slot 21 from the horizontal direction and is sleeved on the part of the pin 6 exposed in the slot 21, realizing the pivotal connection between the swinging member 3 and the connecting block 2.

[0025] Specifically, two limiting portions 11 are formed at intervals on one side of the cylinder block 1. The connecting block 2 is provided with a limiting rod 7 for passing between the two limiting portions 11. An extension portion 71 for abutting against the limiting portion 11 is formed at one end of the limiting rod 7 away from the connecting block 2. The extension portion 71 can move between a position abutting against the limiting portion 11 and a position away from it with the extension and retraction movements of the piston rod.

[0026] Specifically, the limiting rod 7 and the connecting block 2 are of an integrally formed structure or a detachable connection structure. When it is a detachable connection structure, the limiting rod 7 is locked by screws or fixed to the connecting block 2 through a snap structure.

[0027] Specifically, a vertically extending strip-shaped groove 31 is formed on one side of the swinging member 3 away from the cylinder block 1. Both ends of the strip-shaped groove 31 extend to penetrate the top wall and the bottom wall of the swinging member 3 respectively. An insertion portion 41 adapted to the strip-shaped groove 31 is formed on one side of the pressing member 4. The pressing member 4 is inserted into the swinging member 3 through the insertion and cooperation of the insertion portion 41 and the strip-shaped groove 31 and then locked by the bolt.

[0028] Specifically, the surface of the pressing member 4 close to the mold is a flat surface or an arc surface 42.

[0029] In the technical solution of the present utility model, a connecting block pivotally connected with a swinging member is fixedly installed on the free end of the piston rod of the air cylinder, and a pressing member for contacting the mold is locked on the side of the swinging member away from the cylinder block by bolts, so that the pressing member can approach the mold with the extension of the piston rod and move away from the mold with the retraction of the piston rod. During work, when the piston rod extends, the pressing member approaches and pushes the mold. During the process of the pressing member contacting and pushing the mold, the swinging member is forced to make a horizontal swinging movement to realize automatic angle adjustment, so as to ensure that the pressing member always keeps full contact with the outer wall of the mold during this process, avoid the mold from arching, so that the mold keeps full contact with the shoe head, thereby improving the shaping effect of the shoe head, effectively improving the production efficiency and reducing the production cost.

[0030] The above are only the preferred embodiments of the present utility model, and do not thus limit the patent scope of the present utility model. Any equivalent structural transformation made under the inventive concept of the present utility model by using the content of the specification and drawings of the present utility model, or any direct / indirect application in other related technical fields shall be included within the patent protection scope of the present utility model.

Claims

1. A new type of cylinder for a toe shaping mechanism, comprising a cylinder body (1) and a piston rod, characterized in that: The free end of the piston rod is provided with a connecting block (2), which can move away from the cylinder body (1) as the piston rod is extended, and move closer to the cylinder body (1) as the piston rod is retracted. The connecting block (2) can be pivotally connected to a swinging member (3), and the swinging member (3) can swing back and forth in a horizontal direction relative to the connecting block (2). The side of the swinging member (3) away from the cylinder body (1) is locked by a bolt with a pressing member (4) for contacting the mold.

2. The novel cylinder for the toe shaping mechanism according to claim 1 is characterized in that: A tension spring (5) is also provided, and the tension spring (5) is used to apply an elastic force to the piston rod to move in a direction toward the connecting block (2) and close to the cylinder body (1).

3. The novel cylinder for the toe shaping mechanism according to claim 2 is characterized in that: A first screw rod (100) is screwed to the bottom wall of the cylinder body (1), a second screw rod (200) is screwed to the bottom wall of the connecting block (2), one end of the tension spring (5) is connected to the first screw rod (100), and the other end is connected to the second screw rod (200).

4. The novel cylinder for the toe shaping mechanism according to claim 1, characterized in that: The connecting block (2) is provided with a slot (21), a plug (6) having a cap (61) is inserted into the connecting block (2) from bottom to top, the plug (6) is partially exposed in the slot (21), one end of the plug (6) away from the cap (61) passes through the top wall of the connecting block (2) and is exposed outside, a retaining spring (22) is fixedly sleeved on the exposed end of the plug (6) to fix the plug (6) to the connecting block (2), the swinging member (3) is L-shaped, the lower end of the swinging member (3) extends into the slot (21) from a horizontal direction and is sleeved on the part of the plug (6) exposed in the slot (21), so as to realize the pivotal connection between the swinging member (3) and the connecting block (2).

5. The novel cylinder for the toe shaping mechanism according to claim 1 is characterized in that: Two limiting parts (11) are formed at intervals on one side of the cylinder body (1); the connecting block (2) is provided with a limiting rod (7) for passing through the two limiting parts (11); an extension part (71) for abutting against the limiting part (11) is formed at one end of the limiting rod (7) away from the connecting block (2); the extension part (71) can move between abutting against and away from the limiting part (11) as the piston rod extends and retracts.

6. The novel cylinder for the toe shaping mechanism according to claim 5, characterized in that: The limiting rod (7) and the connecting block (2) are an integrally formed structure or a detachable connecting structure. When the connecting structure is a detachable connecting structure, the limiting rod (7) is locked by a screw or fixed to the connecting block (2) by a buckle structure.

7. The novel cylinder for the toe shaping mechanism according to claim 1, characterized in that: A strip groove (31) extending vertically is formed on one side of the swing member (3) away from the cylinder body (1), and two ends of the strip groove (31) extend to penetrate the top wall and the bottom wall of the swing member (3) respectively. An inserting portion (41) adapted to the strip groove (31) is formed on one side of the pressing member (4), and the pressing member (4) is inserted into the swing member (3) through the inserting portion (41) and the strip groove (31) and then locked by the bolt.

8. The novel air cylinder for the toe shaping mechanism according to claim 1, characterized in that: The surface of the pressing piece (4) close to the mold is a flat surface or a curved surface (42).

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