Automatic shoe mold last clamp

Abstract

The utility model provides an automatic shoe mold last clamp which comprises a bottom plate and at least two clamping pieces fixed below the bottom plate, and the clamping pieces are symmetrically arranged. The clamping hand air cylinder is used for pushing the clamping pieces to move linearly so as to control the symmetrical clamping pieces to clamp or release the mold last. Each clamping piece is provided with an inclined groove, the front portion and the rear portion of each inclined groove are each provided with a guide groove, a limiting screw is arranged in each guide groove, and the clamping pieces are fixed to the lower face of the bottom plate through the limiting screws. The clamping hand air cylinder comprises an air cylinder body, the end, away from the air cylinder body, of an air cylinder shaft of the air cylinder body is connected with a push arm, the push arm comprises a left push arm body and a right push arm body, the left push arm body and the right push arm body are each provided with a push rod, and the other end of each push rod is arranged in the corresponding inclined groove. The air cylinder is horizontally arranged on the side face of the bottom plate, and the telescopic movement direction of the air cylinder shaft is horizontal to the bottom plate. The clamp is simple in structure, reliable in clamping, easy to operate and suitable for various shoe trees.

Description

Technical Field

[0001] The utility model relates to the technical field of mold last fixing, in particular to an automatic shoe mold last clamp. Background Art

[0002] In traditional shoemaking technology, the forming part of the upper shoes in the production process is completed through eight processes such as last insertion, line pressing, roughening, heating, injection, cooling, sorting, and last pulling. Traditional shoe molds are composed of a mounting base and a last. This shoe mold fixes the mounting base and the last together. When making shoes, the upper is first shaped with a plastic shoe mold, and then the shaped upper is put on the aluminum shoe mold and the sole is cast on it. Whether the mold and the last structure are reasonable is the key factor in the quality of the finished shoe. Whether the fixation of the shoe mold last is convenient and quick is one of the important factors affecting the production efficiency of shoes. The mold last on the assembly line is not easy to fix and is easy to tilt during production, resulting in product defects.

[0003] In the prior art, patent number CN203492906U with a publication date of 2014.03.26 discloses a shoe last positioning and clamping device, including a positioning mechanism and a clamping mechanism; the positioning mechanism includes a positioning protrusion, two shoe last mounting shafts and a shoe last, the two shoe last mounting shafts pass through the positioning protrusion and are fixed on the shoe last, and the positioning protrusion is provided with a positioning hole; the clamping mechanism includes a positioning pin, a cylinder seat, a cylinder, two first pins, two clamping claws, a cylinder connector, two connecting rods, two second pins and a third pin; the two clamping claws are positioned relative to each other and are used to clamp or release the positioning protrusion. The shoe last positioning and clamping device described in the utility model has a compact structure, reliable clamping, simple operation, labor saving, is applicable to various shoe lasts, and has low production cost. In automated shoemaking, especially when a six-axis robot is grinding or spraying glue on the shoe upper, it plays a good positioning and clamping role to ensure processing accuracy.

[0004] In the above solution, the cylinder of the clamping mechanism is installed vertically with the positioning mechanism, which occupies a relatively large vertical space and is not applicable to some high molds. Utility Model Content

[0005] The technical problem to be solved by the utility model is whether the fixation of a shoe last is convenient and quick. In order to solve the above problem, an automatic shoe last clamp is provided.

[0006] The purpose of the utility model is achieved in the following ways:

[0007] An automatic shoe last clamp comprises a base plate and clamping pieces fixed under the base plate, wherein the clamping pieces are at least two and symmetrically arranged; and a clamping cylinder, wherein the clamping cylinder is used to push the clamping pieces to move in a straight line to control the symmetrical clamping pieces to clamp or release the last.

[0008] Each of the clips is provided with an oblique groove, and a guide groove is respectively provided in front and behind the oblique groove. A limiting screw is provided in each of the guide grooves, and the limiting screw fixes the clip under the bottom plate.

[0009] The gripper cylinder comprises a cylinder, and a push arm is connected to one end of the cylinder axis away from the cylinder. The push arm comprises a left push arm and a right push arm. The left push arm and the right push arm are respectively provided with a push rod, and the other end of the push rod is arranged in the inclined groove 3.

[0010] The cylinder is horizontally arranged on the side of the bottom plate, and the telescopic movement direction of the cylinder shaft is arranged horizontally with the bottom plate.

[0011] The beneficial effects of the utility model are as follows: the clamp of the utility model has a simple structure, reliable clamping, simple operation, and is suitable for various shoe lasts. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is the front view of the utility model.

[0013] Figure 2 It is a bottom view of the utility model (excluding the mold last).

[0014] Figure 3 It is a structural schematic diagram of the mold last in the utility model.

[0015] Figure 4 It is a structural schematic diagram of the top of the mold last in the utility model.

[0016] Among them, 1-base plate, 2-clamp, 3-oblique groove, 4-guide groove, 5-limit screw, 6-mold last, 7-cylinder, 8-cylinder shaft, 9-push arm, 10-push rod. DETAILED DESCRIPTION

[0017] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0018] It should be noted that the following detailed descriptions are exemplary and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same technical meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0019] like Figure 1 and Figure 2 As shown, an automatic shoe last clamp comprises a base plate 1 and clips 2 fixed under the base plate 1, wherein the clips 2 are at least two and symmetrically arranged; and further comprises a clamping cylinder, wherein the clamping cylinder is used to push the clips 2 to move in a straight line to control the symmetrical clips 2 to clamp or release the last 6.

[0020] like Figure 3As shown, the position indicated by the arrow is the position clamped by the clip 2.

[0021] Each of the clips 2 is provided with an oblique groove 3 , and a guide groove 4 is respectively provided in front and behind the oblique groove 3 . A limiting screw 5 is provided in each of the guide grooves 4 , and the limiting screw 5 fixes the clip 2 under the base plate 1 .

[0022] The gripping cylinder includes a cylinder 7, and a cylinder shaft 8 of the cylinder 7 is connected to a push arm 9 at one end away from the cylinder 7. The push arm 9 includes a left push arm and a right push arm. The left push arm and the right push arm are respectively provided with a push rod 10, and the other end of the push rod 10 is arranged in the inclined groove 3.

[0023] The cylinder 7 is horizontally arranged on the side of the bottom plate 1, and the telescopic movement direction of the cylinder shaft 8 is arranged horizontally with the bottom plate. After the cylinder 7 is installed on the side of the bottom plate 1, the vertical space occupied is reduced, so that the vertical space for installing the mold last 6 becomes larger, and a higher shoe last mold can be accommodated, so that the high and low molds have good versatility. The structure is simple and maintenance is convenient.

[0024] The bottom plate 1, the clip 2 and the push arm 9 in the present invention have a stacked position relationship from top to bottom.

[0025] The working process of the utility model is as follows: the cylinder shaft 8 of the cylinder 7 moves forward and backward, so that the push rod 10 installed on the push arm 9 moves in the inclined groove 3, thereby pushing the clip 2 to move left and right (such as Figure 2 As shown in the left and right arrows in the figure, the movement of the guide groove can be limited due to the presence of the limit screw 5 in the guide groove 4, so that the clamping piece 2 can control the left and right clamping pieces 2 to clamp and release the mold last 6 on the bottom plate 1 according to the linear motion.

[0026] The above is only a preferred embodiment of the present invention. It should be pointed out that, for those skilled in the art, several changes and improvements can be made without departing from the overall concept of the present invention, and these should also be regarded as the protection scope of the present invention.

Claims

1. An automatic shoe last fixture, characterized in that: The clamp comprises a base plate (1) and clamping pieces (2) fixed below the base plate (1), wherein the clamping pieces (2) are at least two and are symmetrically arranged; and further comprises a clamping cylinder, wherein the clamping cylinder is used to push the clamping pieces (2) to move in a straight line so as to control the symmetrical clamping pieces (2) to clamp or release the mold last.

2. The automatic shoe last fixture according to claim 1, characterized in that: Each of the clips (2) is provided with an oblique groove (3), a guide groove (4) is provided at the front and rear of the oblique groove (3), and a limit screw (5) is provided in each of the guide grooves (4), and the limit screw (5) fixes the clip (2) below the bottom plate (1).

3. The automatic shoe last fixture according to claim 1, characterized in that: The gripper cylinder comprises a cylinder (7), one end of a cylinder shaft (8) of the cylinder (7) away from the cylinder (7) is connected to a push arm (9), the push arm (9) comprises a left push arm and a right push arm, the left push arm and the right push arm are respectively provided with a push rod (10), and the other end of the push rod (10) is arranged in the inclined groove (3).

4. The automatic shoe last fixture according to claim 3, characterized in that: The cylinder (7) is horizontally arranged on the side of the base plate (1), and the telescopic movement direction of the cylinder shaft (8) is arranged horizontally with the base plate.

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