Automatic shoe tree positioning mechanism

Abstract

The utility model discloses an automatic shoe tree positioning mechanism, which comprises a base, a guide frame and a bidirectional clamping device, the guide frame is arranged on the base, the guide frame is provided with two clamping jaws which are oppositely arranged, the clamping jaws can slide along the length direction of the guide frame, the bidirectional clamping device is connected with the clamping jaws, and the bidirectional clamping device is connected with the guide frame. The two-way clamping device is used for driving the two clamping jaws to move between the position where the two clamping jaws are close to each other and the position where the two clamping jaws are away from each other. The clamping jaw comprises a positioning strip matched with the length of a shoe tree, and a convex part extending upwards and / or downwards is arranged in the middle of the positioning strip; and a positioning pin is arranged below the positioning strip. When the clamping jaws get close to each other, the positioning strips and the convex parts of the clamping jaws fix a shoe tree, the positioning pins and the tray stand column are fixed, stable clamping of the tray stand column and the shoe tree is achieved, relative clamping force in the height direction further exists between the positioning strips and the positioning pins, and therefore the shoe tree can be conveniently placed on the tray stand column of the tray. Meanwhile, the positioning is more accurate.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of shoes machine, especially a kind of automatic shoe tree positioning mechanism. BACKGROUND

[0002] With the development of automation, the requirement for shoes machine is also higher and higher, in the process of upper processing, generally adopt shoe tree ((in which shoe tree will be set fixed installation heightening seat, it can be understood as the structure of shoe tree generally also includes tray column) to its fixed, further realize its processing (such as gluing, pressing surface or finishing etc.), then in actual work, if predetermined force is exerted to upper, then it is easy to cause the displacement of shoe tree (mainly X axis and Y axis direction), existing clamping fixture when clamping tray fixture on chain plate line, because last head is too high, arm is too long, center of gravity is unstable etc., cannot accurately position shoe tree, cause gluing, glue spraying, polishing upper effect is not ideal. Exceeded the standard of upper line, affect appearance, below the standard of upper line, glue is not firm.

[0003] For example, Chinese patent CN202020899245.3 adopts the structure of multiple positioning pins, thereby ensuring the fixation of the shoe tree. The positioning pins are in arc shape, and there is a slight deviation in their positions. For an automated robot, this will also cause a travel error, affecting the production qualification rate. UTILITARY MODEL CONTENT

[0004] The main purpose of the present utility model is to provide an automatic shoe tree positioning mechanism, which aims to improve the existing shoe tree positioning structure, ensure the stable positioning of the shoe tree, and has a simple and stable structure.

[0005] To achieve the above-mentioned purpose, the utility model provides an automatic shoe tree positioning mechanism, which comprises:

[0006] a base;

[0007] a guide frame, the guide frame is arranged on the base, the guide frame is provided with two oppositely arranged clamping jaws, the clamping jaws can slide along the length direction of the guide frame,

[0008] a bidirectional clamping device, the bidirectional clamping device is connected with the clamping jaws, and the bidirectional clamping device is used to drive the two clamping jaws to move between the position of approaching each other and the position of moving away from each other;

[0009] the clamping jaw comprises a positioning strip with a length suitable for the shoe tree, the middle part of the positioning strip is provided with a convex part extending upward and / or downward, and the positioning strip and the convex part both extend out of the side wall of the clamping jaw;

[0010] a positioning pin is arranged below the positioning strip.

[0011] In actual design, the relative movement of the clamping jaws is driven by the bidirectional clamping device, the positioning strips and the protrusions are used to cooperate with the parts of the shoe tree, and the positioning pins are used to cooperate with the tray columns, so that when the clamping jaws are close to each other, the positioning strips and the protrusions of the clamping jaws fix the shoe tree, and the positioning pins fix the tray columns, thereby realizing stable clamping of the tray columns and the shoe tree (wherein the positioning strips and the positioning pins also have a relative clamping force in the height direction, so that the shoe tree is conveniently placed on the tray columns of the tray), and the positioning is more accurate, which can be understood as at least three-point positioning, i.e., the positioning strips, the protrusions and the positioning pins, so that even if the overall height of the shoe tree is high, stable clamping can be ensured, and shaking can be avoided. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 is a half-section view of the utility model Figure One .

[0013] Figure 2 is a half-section view of the utility model

[0014] Figure 3 is a perspective view of the clamping jaw

[0015] Figure 4 is a side view of the utility model

[0016] Figure 5 is a perspective view of the utility model Figure Two .

[0017] In the drawings,

[0018] 1 is a base,

[0019] 2 is a guide frame, 21 is a clamping guide rail, and 22 is a clamping sliding block,

[0020] 3 is a clamping jaw, 3a is a positioning strip, and 3b is a protrusion,

[0021] 4 is a bidirectional clamping device, 41 is a connecting rod,

[0022] 5 is a positioning pin,

[0023] 6 is an extension frame,

[0024] 71 is a first arc surface, 72 is a second arc surface, and 73 is a third arc surface,

[0025] 8 is a horizontal moving frame, 81 is a horizontal guide rail, 82 is a horizontal sliding block, and 83 is a driving device.

[0026] 100 is a shoe tree, 101 is a notch, and 102 is a strip-shaped groove. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the present application.

[0028] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, top, bottom, inner, outer, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial, etc.), the directional indications are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications also change accordingly.

[0029] In addition, if the embodiments of the present application involve descriptions such as "first" or "second", the descriptions of "first" or "second" are only for description purposes, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but must be based on the realization of ordinary skilled persons in the art, and when the combination of technical solutions contradicts each other or cannot be realized, it should be considered that the combination of technical solutions does not exist and is not within the protection scope required by the present application.

[0030] As shown in FIG. Figures 1 to 5 An automatic shoe last positioning mechanism comprises:

[0031] a base 1;

[0032] a guide frame 2 provided on the base 1, the guide frame 2 being provided with two oppositely arranged clamping jaws 3, the clamping jaws 3 being slidable along the length direction of the guide frame 2,

[0033] a bidirectional clamping device 4 connected with the clamping jaws 3, the bidirectional clamping device 4 being used to drive the two clamping jaws 3 to move between the position of approaching each other and the position of moving away from each other;

[0034] the clamping jaw 3 comprises a positioning strip 3a with a length suitable for a shoe last, the middle part of the positioning strip 3a being provided with a protrusion 3b extending upward and / or downward, and the positioning strip and the protrusion both extending out of the side wall of the clamping jaw;

[0035] a positioning pin 5 is arranged below the positioning strip 3a.

[0036] In actual design, the relative movement of the clamping jaws 3 is driven by the bidirectional clamping device 4, wherein the positioning strips 3a and the protrusions 3b are used for cooperating with parts of the shoe tree, and the positioning pins 5 are used for cooperating with the tray columns, so that when the clamping jaws 3 are close to each other, the positioning strips 3a and the protrusions 3b of the clamping jaws 3 are fixed with the shoe tree, and the positioning pins 5 are fixed with the tray columns, thereby realizing stable clamping of the tray columns and the shoe tree (wherein the positioning strips 3a and the positioning pins 5 also have a relative clamping force in the height direction, thereby facilitating the shoe tree to be placed on the tray columns of the tray), and meanwhile, the positioning is more accurate, and it can be understood that at least three points are positioned, namely the positioning strips 3a, the protrusions 3b and the positioning pins 5, so that even if the overall height of the shoe tree is high, stable clamping can be ensured, and shaking can be avoided.

[0037] Specifically, the bidirectional clamping device 4 is a bidirectional clamping cylinder or a bidirectional clamping motor; the guide frame 2 comprises a clamping guide rail 21 and a clamping sliding block 22 slidingly installed on the guide rail, and the clamping jaws 3 are arranged at the front wall position of the clamping sliding block 22.

[0038] In the embodiment of the utility model, the clamping jaws 3 and the bidirectional clamping device 4 are connected through a connecting rod 41, and two ends of the connecting rod 41 are pivotally arranged respectively.

[0039] One end of the connecting rod 41 is pivotally connected with the rear end of the clamping sliding block 22 or the clamping jaw 3, and the other end is pivotally connected with the driving end of the bidirectional clamping device 4, so that greater torque can be ensured, and the stability of sliding can be ensured.

[0040] Specifically, an extension frame 6 is arranged between the clamping jaws 3 and the clamping sliding block 22, so that the shoe tree and the clamping jaws 3 are in the same horizontal position, the stability of clamping is ensured, and of course, the design can be made according to actual requirements.

[0041] In the embodiment of the utility model, the bidirectional clamping device 4 is arranged at the upper position of the guide frame 2, so that the mechanism layout is more compact, and the overall mechanism size is reduced.

[0042] Specifically, the front end surface of the positioning strip 3a is provided with a first arc surface 71, and the protrusion 3b is provided with a second arc surface 72, wherein the positioning strip 3a and the protrusion 3b respectively realize preliminary positioning with the shoe tree, and the arc surfaces avoid position correction during preliminary clamping, and play a guiding role.

[0043] In the embodiment of the utility model, the front end of the positioning pin 5 is provided with a third arc surface 73, the positioning pin 5 is provided with two, and the cross section of the positioning pin 5 is in a circular shape, thereby playing a guiding role.

[0044] Specifically, the protrusion 3b extends along the height direction.

[0045] In the embodiment of the utility model, the base 1 is arranged on the horizontal moving frame 8, the horizontal moving frame comprises horizontal guide rails 81, horizontal sliding blocks 82 slidingly arranged on the horizontal guide rails and driving devices 83 for driving the horizontal sliding blocks to move, and the base 1 is arranged on the horizontal sliding blocks.

[0046] Specifically, the driving device is a telescopic air cylinder or a telescopic motor.

[0047] Specifically, a blocking air cylinder is arranged at the front position of the horizontal frame, when the tray is moved to the vamp working station (i.e. the device of the application), under the action of the blocking air cylinder, the tray is stopped at the designated position, the last positioning mechanism is started, the tray column of the tray and the last are clamped (and the X-axis and Y-axis of the last are accurately positioned).

[0048] Specifically, the length direction of the positioning strip 3a is Y-axis, the transverse direction is X-axis and the height direction is Z-axis, therefore, it can be understood that the positioning strip 3a realizes the positioning of the X-axis and Z-axis, the convex block realizes the positioning of the Y-axis and the positioning pin 5 realizes the positioning of the X-axis, Y-axis and Z-axis.

[0049] The last is provided with a notch 101 matched with the convex part (the notch can be integrally arranged on the last, or arranged on the heightening seat, for example, the heightening seat and the last are detachably fixed, thereby meeting the existing use of the last), a strip-shaped groove 102 matched with the positioning strip and a pin hole of the tray matched with the positioning pin.

[0050] The above only describes the preferred embodiments of the utility model, and does not limit the patent range of the utility model, and any equivalent structural transformation or direct / indirect application in other related technical fields under the utility model concept of the utility model is included in the patent protection range of the utility model.

Claims

1. An automated shoe last positioning mechanism, characterized in that, include: Base; A guide frame, mounted on a base, is provided with two opposing grippers that can slide along the length of the guide frame. A bidirectional clamping device, which is connected to grippers, is used to drive the two grippers to move between positions close to each other and positions far apart from each other; The gripper includes a positioning strip adapted to the length of the shoe last, and the positioning strip has a protrusion extending upward and / or downward in the middle, and both the positioning strip and the protrusion extend out of the sidewall of the gripper. A positioning pin is provided below the positioning strip.

2. The automated shoe last positioning mechanism as described in claim 1, characterized in that: The bidirectional clamping device is a bidirectional clamping cylinder or a bidirectional clamping motor; The guide frame includes a clamping guide rail and a clamping slider slidably mounted on the guide rail, with the gripper located on the front wall of the clamping slider.

3. The automated shoe last positioning mechanism as described in claim 2, characterized in that: The gripper and the bidirectional clamping device are connected by a connecting rod, with each end of the connecting rod pivotally mounted. One end of the connecting rod is pivotally connected to the rear end of the clamping slider or gripper, and the other end is pivotally connected to the drive end of the bidirectional clamping device.

4. The automated shoe last positioning mechanism as described in claim 2, characterized in that: An extension frame is provided between the gripper and the gripping slider.

5. The automated shoe last positioning mechanism as described in claim 2, characterized in that: The bidirectional clamping device is located above the guide frame.

6. The automated shoe last positioning mechanism as described in claim 1, characterized in that: The front end face of the positioning strip is provided with a first arc-shaped surface, and the protrusion is provided with a second arc-shaped surface.

7. The automated shoe last positioning mechanism as described in claim 1, characterized in that: The front end of the positioning pin is provided with a third arc-shaped surface, there are two positioning pins, and the cross-section of the positioning pin is circular.

8. The automated shoe last positioning mechanism as described in claim 1, characterized in that: The protrusion extends along the height direction.

9. The automated shoe last positioning mechanism as described in claim 1, characterized in that: The base is mounted on a horizontal moving frame, which includes a horizontal guide rail, a horizontal slider slidably mounted on the horizontal guide rail, and a driving device for driving the horizontal slider to move. The base is mounted on the horizontal slider.

10. The automated shoe last positioning mechanism as described in claim 9, characterized in that: The driving device is a telescopic cylinder or a telescopic motor.

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