Shoe last fixing and clamping device

Abstract

The utility model relates to the technical field of footwear processing, in particular to a shoe last fixing and clamping device which is characterized in that a base is used as a supporting component, a shoe last is inversely placed at a station, at the moment, a clamping mechanism is used for clamping the shoe last, clamping jaws surround the two sides of a shoe last extending part, and the clamping jaws are used for clamping the shoe last. Due to the fact that the abutting edges on the two sides can elastically wrap the shoe lasts on the stations, the contact area change of the shoe lasts of different sizes and the clamping jaws can tend to a stable numerical value, and the shoe lasts of different sizes can be clamped and fixed in a matched mode.

Description

Technical Field

[0001] The utility model relates to the technical field of shoe processing, and more specifically, to a shoe last fixing and clamping device. Background Art

[0002] The main function of the last is to provide the desired shape and structure for the shoe. By placing the shoe on the last and applying the appropriate force, the shoe can be kept in a specific shape, such as the toe part, the toe cap and the heel. This helps to ensure that the shoe maintains a consistent shape during the manufacturing process and makes it more suitable for people's feet. For this reason, the last is one of the essential and important auxiliary tools to support the shoe when processing the footwear.

[0003] However, since shoes of different sizes use lasts of different shapes and sizes, the upper must be kept stable when processing the upper. Fixing lasts of different sizes has become a problem that has troubled people for many years. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the purpose of the utility model is to provide a shoe last fixing clamping device, which has the advantage of being able to match and clamp lasts of different sizes.

[0005] The above technical objectives of the utility model are achieved through the following technical solutions: a shoe last fixing and clamping device, comprising a base, a workstation arranged on the base, and a clamping mechanism installed on the base, the shoe last is placed on the workstation, and the shoe last is clamped or released by the clamping mechanism;

[0006] The clamping mechanism includes a plurality of jaws surrounding the workstation and a first driving member driving the jaws to move closer to or away from each other. The jaws are provided with a plurality of abutment edges on the side where they approach each other. The abutment edges of adjacent jaws can elastically wrap the last of the workstation, thereby clamping and fixing lasts of different sizes.

[0007] Preferably, an inner cavity is provided in the clamping jaw, and the abutting edge sleeved on the clamping jaw is telescopically moved by connecting the clamping jaw with an external hydraulic cylinder.

[0008] Preferably, a support seat is provided on the base, the clamping jaws are hinged on the support seat, adjacent clamping jaws are connected to the first driving member through connecting rods, and the linear push of the first driving member is transformed into a circular motion of the clamping jaws around the hinge point.

[0009] Preferably, an abutment piece abutting against the top of the last is provided on the base at the work station.

[0010] Preferably, a lifting component for supporting the toe of the last is provided on one side of the base.

[0011] Preferably, the lifting assembly is a supporting cylinder.

[0012] To sum up, the utility model has the beneficial effects: with the base as the supporting component, the last is placed upside down at the work station, and the clamping mechanism is used to clamp the last, and the clamping claws surround the two sides of the last extension part. Since the abutment edges on both sides can elastically wrap the last at the work station, the contact area change between lasts of different sizes and the clamping claws can tend to a stable value, so the clamping and fixation of lasts of different sizes can be matched. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the first embodiment of the utility model;

[0014] Figure 2 It is a three-dimensional structural schematic diagram of the second embodiment of the utility model.

[0015] Figure numerals: 1. base; 11. work station; 12. clamping claw; 13. first driving member; 14. abutting edge; 15. supporting seat; 16. abutting member; 2. supporting cylinder. DETAILED DESCRIPTION

[0016] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0017] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it can be directly on the other component or indirectly on the other component. When a component is referred to as being "connected to" another component, it can be directly or indirectly connected to the other component.

[0018] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0019] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0020] Embodiment 1: A fixing and clamping device for a shoe last, see Figure 1 , comprising a base 1, a workstation 11 disposed on the base 1, and a clamping mechanism installed on the base 1, the last is placed on the workstation 11, and the last is clamped or released by the clamping mechanism;

[0021] The clamping mechanism includes a plurality of jaws 12 surrounding the workstation 11 and a first driving member 13 for driving the jaws 12 to move closer to or away from each other. The jaws 12 are provided with a plurality of abutment edges 14 on the side where they approach each other. The abutment edges 14 of adjacent jaws 12 can elastically wrap the last of the workstation 11, thereby clamping and fixing lasts of different sizes.

[0022] In this embodiment, the base 1 is used as a supporting member, and the last is placed upside down at the work station 11. At this time, the last is clamped by a clamping mechanism, and the clamping claws 12 surround the two sides of the last extension portion. Since the abutting edges 14 on both sides can elastically wrap the last at the work station 11, the contact area changes between lasts of different sizes and the clamping claws 12 can tend to a stable value, so that the clamping and fixation of lasts of different sizes can be matched.

[0023] Specifically, an inner cavity is provided in the clamping jaw 12 , and the clamping jaw 12 is connected to an external hydraulic cylinder so that the abutting edge 14 sleeved on the clamping jaw 12 can be telescopically moved.

[0024] The inner cavity is depressurized and pressurized by using an external hydraulic cylinder, so as to realize the extension and retraction of the abutment edge 14 . When the clamping jaws 12 are in the open and closed state, the abutment edge 14 is used to hydraulically clamp the last.

[0025] Specifically, a support seat 15 is provided on the base 1, and the clamping jaws 12 are hinged on the support seat 15. The adjacent clamping jaws 12 are connected to the first driving member 13 through the connecting rod, and the linear push of the first driving member 13 is transformed into a circular motion of the clamping jaws 12 around the hinge point.

[0026] In this embodiment, the clamping jaws 12 for symmetrically clamping the last are respectively hinged to the support seat 15 , and the linear motion of the first driving member 13 is converted into a circular motion of the clamping jaw 12 around the hinge point through a connecting rod, so as to realize the opening and closing of the clamping jaw 12 .

[0027] Specifically, the base 1 is provided with an abutment 16 abutting against the top of the last at the work station 11. The abutment 16 is used to abut against the top of the last, and the last is clamped by the clamping claw 12 to be more stable.

[0028] Embodiment 2: A last fixing and clamping device, see Figure 2 The difference between this embodiment and the first embodiment is that a lifting assembly for supporting the toe of the shoe last is provided on one side of the base 1. The key points of shoe lasts of different sizes and specifications are different. Therefore, the lifting assembly is used to push and support the toe of the shoe last, so that the clamping claw 12 can be fixed.

[0029] The lifting component is a supporting cylinder 2.

[0030] The rest of this embodiment is the same as the first embodiment. The features not explained in this embodiment are all based on the explanations in the first embodiment and will not be described in detail here.

[0031] The above embodiments are merely explanations of the present invention and are not limitations of the present invention. After reading this specification, those skilled in the art may make modifications to the embodiments without any creative contribution as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A shoe last fixing and clamping device, characterized in that: It comprises a base, a workstation arranged on the base, and a clamping mechanism installed on the base, the last is placed on the workstation, and the last is clamped or released by the clamping mechanism; The clamping mechanism includes a plurality of jaws surrounding the workstation and a first driving member driving the jaws to move closer to or away from each other. The jaws are provided with a plurality of abutment edges on the side where they approach each other. The abutment edges of adjacent jaws can elastically wrap the last of the workstation, thereby clamping and fixing lasts of different sizes.

2. The shoe last fixing and clamping device according to claim 1, characterized in that: An inner cavity is provided in the clamping jaw, and the clamping jaw is connected with an external hydraulic cylinder so that the abutting edge sleeved on the clamping jaw can be telescopically moved.

3. The shoe last fixing and clamping device according to claim 1, characterized in that: A support seat is arranged on the base, and the clamping jaws are hinged on the support seat. The adjacent clamping jaws are connected to the first driving member through connecting rods, and the linear push of the first driving member is transformed into a circular motion of the clamping jaws around the hinge point.

4. The shoe last fixing and clamping device according to claim 1, characterized in that: A contact piece abutting against the top of the last is arranged on the base at the work station.

5. The shoe last fixing and clamping device according to claim 1, characterized in that: A lifting component for supporting the toe of the shoe last is arranged on one side of the base.

6. The shoe last fixing and clamping device according to claim 5, characterized in that: The lifting assembly is a supporting cylinder.

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