Turnover type shoe tree positioning mechanism

Abstract

The utility model provides a turnover type shoe tree positioning mechanism. The turnover type shoe tree positioning mechanism comprises a clamping body, a supporting frame, a turnover hydraulic motor and the like. The supporting frame is composed of a main mounting plate, side mounting blocks, a supporting base and the like, and a stable frame is formed. The clamping body is hinged to the supporting frame through a rotating shaft and is driven by the overturning hydraulic motor to overturn through a chain, and the shoe tree is positioned or released on the plane. And a rotating groove is formed in the supporting seat, so that the overturning stability of the clamping body is improved. The shoe last limiting block positions the front end of the shoe last. The shoe tree guide plate is located on the lower portion and provided with a longitudinal center positioning groove, and the shoe tree is guided to move to the correct position through a reciprocating driving mechanism (an air cylinder, a transmission block and the like). The side mounting plates and the reinforcing plates improve the structural strength. The other end of the clamping body is provided with a U-shaped groove and a V-shaped welt to adapt to the shape of a shoe tree, and the open end is provided with an arc-shaped chamfer to protect operators. The mechanism saves space, is high in response speed, can adapt to shoe trees of different specifications, and improves the positioning stability and accuracy.

Description

TECHNICAL FIELD

[0001] The utility model relates to a turnover shoe tree positioning mechanism. BACKGROUND

[0002] A shoe tree is a model used for making shoes, and through the shoe tree, the shape and structure of the shoes can be maintained during the making process, ensuring that the shoes maintain the correct shape during the production process and provide comfortable fit in the final form.

[0003] The Chinese utility model patent file with the publication number "CN201743060U" discloses a shoe tree positioning device, which comprises a top die seat, a top die, a shoe tree and a positioning mechanism. The positioning mechanism mainly comprises a long shaft, a clamping body and a fluid pressure cylinder. A through hole is provided on the top die seat for the long shaft to pass through. When the long shaft moves downward until it is connected with the shoe tree, the fluid pressure cylinder drives the clamping body to move forward until it clamps the upper end of the long shaft, thereby positioning the shoe tree.

[0004] The positioning mechanism uses a fluid pressure cylinder to drive the clamping body directly, and the reciprocating movement of the long shaft is needed to position the shoe tree. The forward and backward movement of the clamping body requires a certain position space in the horizontal direction, otherwise the clamping body and the long shaft cannot be separated and linked. Similarly, the length of the long shaft determines that it needs more axial space, and its reciprocating movement also needs axial position space. In summary, the positioning mechanism not only has a complex structure, but also has a large overall structure size, occupies space, and cannot be widely used. UTILITY MODEL CONTENTS

[0005] The technical problem to be solved by the utility model is to provide a turnover shoe tree positioning mechanism, which directly acts on the shoe tree to position or release it, greatly saving space, and uses a turnover hydraulic motor, which not only has a high response speed, but also can change the turnover angle of the clamping body according to actual needs to adapt to shoe trees of different specifications and types.

[0006] To achieve the above purpose, the utility model provides the following technical scheme:

[0007] The turnover shoe tree positioning mechanism comprises a clamping body, characterized in that it further comprises a support frame, one end of the clamping body is linked with a rotating shaft, both ends of the rotating shaft are hinged to the support frame through bearings, the end of the rotating shaft is linked with a driven sprocket, the driven sprocket is linked with a driving sprocket through a chain, the driving sprocket is linked with a turnover hydraulic motor, and the turnover hydraulic motor is installed on the support frame.

[0008] When the shoe last needs to be positioned, the overturning hydraulic motor is started. The overturning hydraulic motor drives the driving sprocket to rotate, the chain drives the driven sprocket to rotate synchronously, thereby driving the rotating shaft to rotate, one end of the clamping body will rotate accordingly, until the other end of the clamping body overturns to the shoe last, limiting both sides of the shoe last, achieving the positioning of the shoe last. Compared with the prior art, the clamping body directly acts on the shoe last to achieve positioning or release, which greatly saves space compared with the traditional linear movement. Further, the overturning hydraulic motor not only has a high response speed, but also can change the overturning angle of the clamping body according to actual needs to adapt to different specifications and types of shoe lasts.

[0009] The overturning shoe last positioning mechanism described above can be further provided with: the support frame includes a transversely placed main mounting plate, side mounting blocks oppositely distributed at both ends of the main mounting plate, a support seat is detachably connected to the middle part of the main mounting plate by screws, a rotating groove penetrating the support seat is arranged in the middle part of the support seat, rotating holes for hinging the rotating shaft are arranged on both sides of the rotating groove, and one end of the clamping body is inserted into the rotating groove and fixedly connected with the rotating shaft.

[0010] The support frame is composed of a main mounting plate, side mounting blocks, a support seat and the like to form a stable frame. The support seat is detachably connected to the middle part of the main mounting plate by screws, which facilitates installation and adjustment. The support seat is used to support the middle part of the rotating shaft to ensure that the rotating shaft can be smoothly overturned and deformation of the rotating shaft is avoided. The rotating groove is arranged on the support seat to improve the overturning stability of the clamping body and prevent it from shaking or falling off.

[0011] The overturning shoe last positioning mechanism described above can be further provided with: the support seat is provided with a last head limiting block on the side away from the main mounting plate, the last head limiting block is detachably connected to both sides of the support seat by screws, and the last head limiting block is distributed below the clamping body.

[0012] The last head limiting block positions the front end of the shoe last in the horizontal plane, thereby preliminarily positioning the shoe last in the correct position. While the clamping body clamps the shoe last, the last head limiting block continues to support and limit the shoe last, ensuring that the shoe last does not shake or deviate during positioning, greatly improving the stability and accuracy of the shoe last positioning. Further, the last head limiting block is detachably connected to both sides of the support seat by screws, which facilitates replacement of the last head limiting block to adapt to the positioning needs of different shoe lasts.

[0013] The above-mentioned flip shoe last positioning mechanism can be further provided with: the support frame further comprises a shoe last guide plate distributed below the main mounting plate and fixedly connected with the main mounting plate, the shoe last guide plate is below the last head limiting block and is provided with a longitudinal center positioning groove, the longitudinal center positioning groove extends towards the side edge of the shoe last guide plate, and the end of the longitudinal center positioning groove is in an open shape, and the shoe last guide plate is linked with a reciprocating driving mechanism capable of driving the shoe last guide plate to reciprocate towards the shoe last.

[0014] The shoe last is provided below with a guide positioning block capable of adapting to the longitudinal center positioning groove, when the shoe last is placed on the positioning mechanism, the guide positioning block is inserted into the longitudinal center positioning groove of the shoe last guide plate. On the one hand, the shoe last guide plate can align the shoe last, further realizing the guidance and positioning of the shoe last; on the other hand, the guide positioning block is provided with a positioning reference plane on both sides, and the clamping body is used to press down the shoe last until the positioning reference plane is in contact with the plane of the shoe last guide plate, realizing horizontal positioning and ensuring that the two holes on the upper end of the shoe last can be accurately processed. The shoe last guide plate reciprocates towards the shoe last through the action of the reciprocating driving mechanism, guiding the shoe last to move along the direction of the longitudinal center positioning groove until the front end of the shoe last is in contact with the last head limiting block, further positioning the front end of the shoe last.

[0015] The above-mentioned flip shoe last positioning mechanism can be further provided with: the reciprocating driving mechanism comprises a lifting block fixed below the shoe last guide plate through a screw, the lifting block is linked with a sliding block, the sliding block is slidingly matched with a sliding rail, a transmission block is fixed below the shoe last guide plate, the transmission block is linked with a gas cylinder, and the gas cylinder can drive the shoe last guide plate to reciprocate along the axial direction of the sliding rail through the transmission block.

[0016] When the shoe last needs to be positioned, the gas cylinder starts to work. The piston rod of the gas cylinder extends or retracts, is connected with the lifting block below the shoe last guide plate through the transmission block, and thus drives the movement of the shoe last guide plate. The lifting block is provided to facilitate the installation of the sliding rail, the sliding block and the gas cylinder. The sliding block slides on the sliding rail, ensuring the stability and accuracy of the movement of the shoe last guide plate.

[0017] The above-mentioned flip shoe last positioning mechanism can be further provided with: the shoe last guide plate is detachably connected with a side mounting plate through a screw, the side mounting plate is parallel to the main mounting plate, the main mounting plate is detachably connected with the side mounting plate through a screw, the side mounting plate is connected with a reinforcing plate on the side away from the main mounting plate, and the lower end of the reinforcing plate is connected with the shoe last guide plate.

[0018] The side mounting plate is used to install the main mounting plate, and the reinforcing plate is used to improve the structural strength of the side mounting plate and the shoe last guide plate. The screw connection form is convenient for disassembly and assembly between the side mounting plate and the shoe last guide plate.

[0019] The turnover shoe tree positioning mechanism can be further provided with a U-shaped groove at the other end of the clamping body, the U-shaped groove is open at the end away from the rotating shaft, and the other end of the U-shaped groove is provided with symmetrically distributed V-shaped edges, and the clamping body at the open end of the U-shaped groove is provided with an arc-shaped chamfer.

[0020] The U-shaped groove is used for accommodating and positioning the shoe tree, the end of the U-shaped groove is provided with an opening, the clamping body can conveniently enter or exit the shoe tree, the V-shaped edges are convenient for adapting to the arc shape of the front side of the shoe tree, and the arc-shaped chamfer avoids scratching the hand of an operator and protects the operator.

[0021] The utility model will be further described in detail in combination with the drawings and embodiments. DRAWINGS

[0022] Figure 1 It is a structural schematic view of the utility model embodiment one.

[0023] Figures 2 It is a structural schematic view of the utility model embodiment two.

[0024] Figures 3 It is an explosion schematic view of the utility model embodiment two.

[0025] Figures 4 It is a front view schematic view of the utility model embodiment two.

[0026] Figures 5 It is a shoe tree schematic view mentioned in the utility model embodiment one and two.

[0027] Label annotation: shoe tree a, guiding positioning block a1, positioning reference plane a2, clamping body 1, rotating shaft 2, driven sprocket 3, driving sprocket 4, turnover hydraulic motor 5, U-shaped groove 6, V-shaped edge 7, arc-shaped chamfer 8, main mounting plate 9, side mounting block 10, support seat 11, rotating hole 12, last head limiting block 13, shoe tree guiding plate 14, longitudinal center positioning groove 15, lifting block 16, sliding block 17, sliding rail 18, transmission block 19, air cylinder 20, side mounting plate 21, reinforcing plate 22. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described in combination with the drawings of the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0029] Embodiment one: as Figure 1The shown turnover shoe tree a positioning mechanism, including the clamping body 1, support frame, one end of the clamping body 1 is linked with the rotating shaft 2, the two ends of the rotating shaft 2 are hinged to the support frame through the bearing, the end of the rotating shaft 2 is linked with the driven sprocket 3, the driven sprocket 3 is linked with the driving sprocket 4 through the chain (not shown in the figure), the driving sprocket 4 is linked with the turnover hydraulic motor 5, the turnover hydraulic motor 5 is installed on the support frame.

[0030] The other end of the clamping body 1 is provided with a U-shaped groove 6, the U-shaped groove 6 is open at the end away from the rotating shaft 2, the other end of the U-shaped groove 6 is provided with symmetrically distributed V-shaped edges 7, the clamping body 1 at the open end of the U-shaped groove 6 is provided with an arc chamfer 8. The U-shaped groove 6 is used for accommodating and positioning the shoe tree a, the end of the U-shaped groove 6 is provided with an opening, which facilitates the shoe tree a to conveniently enter or exit the clamping body 1. The V-shaped edge 7 is convenient for adapting to the arc shape of the front side of the shoe tree a. The arc chamfer 8 avoids scratching the hand by the clamping body 1, which protects the operator.

[0031] When the shoe tree a needs to be positioned, the turnover hydraulic motor 5 is started. The turnover hydraulic motor 5 drives the driving sprocket 4 to rotate through the output shaft, the driving sprocket 4 is linked with the driven sprocket 3 through the chain, when the driving sprocket 4 rotates, the chain drives the driven sprocket 3 to rotate synchronously, the driven sprocket 3 is linked with the rotating shaft 2, thereby driving the rotating shaft 2 to rotate, one end of the clamping body 1 will rotate accordingly, until the other end of the clamping body 1 is turned to the shoe tree a, limiting the two sides of the shoe tree a, realizing the positioning or releasing of the shoe tree a. Compared with the prior art, the clamping body 1 directly acts on the shoe tree a, realizing the positioning or releasing of the shoe tree a, compared with the traditional straight line moving mode, the space is greatly saved. Further, the turnover hydraulic motor 5 is adopted, not only the response speed is large, but also the turning angle of the clamping body 1 can be changed according to the actual demand, to adapt to different specifications and types of shoe trees a.

[0032] The support frame includes a transversely placed main mounting plate 9, side mounting blocks 10 oppositely distributed at both ends of the main mounting plate 9, a support seat 11 is detachably connected in the middle of the main mounting plate 9 through screws, a rotating groove penetrating the support seat 11 is arranged in the middle of the support seat 11, rotating holes 12 hinged with the rotating shaft 2 are arranged on both sides of the rotating groove, one end of the clamping body 1 is inserted into the rotating groove and is fixedly connected with the rotating shaft 2. The support frame is composed of the main mounting plate 9, the side mounting block 10 and the support seat 11, forming a stable frame. The support seat 11 is detachably connected in the middle of the main mounting plate 9 through screws, which is convenient for installation and adjustment. Among them, the support seat 11 is used to support the middle of the rotating shaft 2, to ensure that the rotating shaft 2 can be smoothly turned, avoiding deformation of the rotating shaft 2. The rotating groove is arranged on the support seat 11, which improves the turning stability of the clamping body 1 and is not easy to shake or fall off.

[0033] A last limiting block 13 is provided on the side of the support base 11 away from the main mounting plate 9. The last limiting block 13 is detachably connected to both sides of the support base 11 via screws. The last limiting block 13 is located below the locking body 1. The last limiting block 13 positions the front end of the shoe last a on the horizontal plane, thus initially positioning the shoe last a in the correct position. While the locking body 1 clamps the shoe last a, the last limiting block 13 continues to provide support and limitation, ensuring that the shoe last a does not wobble or shift during positioning, greatly improving the stability and accuracy of the shoe last a's positioning. Furthermore, the last limiting block 13 is detachably connected to both sides of the support base 11 via screws, facilitating the replacement of the last limiting block 13 to adapt to the positioning requirements of different shoe lasts a.

[0034] Example 1 is used for simple shoe last a positioning. The flipping hydraulic motor 5 drives the rotating shaft 2 to rotate via the driving sprocket 4, driven sprocket 3, and chain, thereby causing the locking body 1 to flip and achieve positioning of the shoe last a. By adjusting the relevant parameters of the flipping hydraulic motor 5, the flipping angle of the locking body 1 can be adjusted to adapt to different sizes and types of shoe lasts a.

[0035] Example 2: Figures 2 to 4 The flip-type shoe last a positioning mechanism shown includes all the technical features of Embodiment 1, and also includes the following: the support frame also includes a shoe last guide plate 14 distributed below the main mounting plate 9 and fixedly connected to the main mounting plate 9. The shoe last guide plate 14 is provided with a longitudinal center positioning groove 15 below the last limit block 13. The longitudinal center positioning groove 15 extends toward the side of the shoe last guide plate 14 and the end of the longitudinal center positioning groove 15 is open. The shoe last guide plate 14 is linked to a reciprocating drive mechanism that can drive the shoe last guide plate 14 to reciprocate toward the shoe last a.

[0036] like Figure 5 As shown, a guide positioning block a1 is provided below the shoe last a, which can be adapted to the longitudinal center positioning groove 15. When the shoe last a is placed on the positioning mechanism, the guide positioning block a1 will be inserted into the longitudinal center positioning groove 15 of the shoe last guide plate 14. On the one hand, the shoe last guide plate 14 can straighten the shoe last a, further realizing the guidance and positioning of the shoe last a; on the other hand, the guide positioning block a1 has positioning reference planes a2 on both sides. The locking body 1 is used to press the shoe last a down until the positioning reference plane a2 contacts the plane of the shoe last guide plate 14, realizing horizontal positioning and ensuring that the upper end of the shoe last a can be accurately machined with two holes. The shoe last guide plate 14 reciprocates towards the shoe last a through the action of the reciprocating drive mechanism, guiding the shoe last a to move along the direction of the longitudinal center positioning groove 15 until the front end of the shoe last a contacts the last limit block 13, further positioning the front end of the shoe last a.

[0037] The reciprocating driving mechanism comprises a lifting block 16 fixed below the last guiding plate 14 by a screw, the lifting block 16 is linked with a sliding block 17, the sliding block 17 is slidingly fitted with a sliding rail 18, a transmission block 19 is fixed below the last guiding plate 14, the transmission block 19 is linked with a gas cylinder 20, the gas cylinder 20 can drive the last guiding plate 14 to reciprocate along the axis of the sliding rail 18 through the transmission block 19. When the last a needs to be positioned, the gas cylinder 20 starts to work. The piston rod of the gas cylinder 20 extends or retracts, and is connected with the lifting block 16 below the last guiding plate 14 through the transmission block 19, thereby driving the movement of the last guiding plate 14. The lifting block 16 is arranged to facilitate the installation of the sliding rail 18, the sliding block 17 and the gas cylinder 20. The sliding block 17 slides on the sliding rail 18, ensuring the stability and accuracy of the movement of the last guiding plate 14.

[0038] The last guiding plate 14 is detachably connected with a side mounting plate 21 through a screw, the side mounting plate 21 is parallel to the main mounting plate 9, the main mounting plate 9 is detachably connected with the side mounting plate 21 through a screw, the side mounting plate 21 is connected with a reinforcing plate 22 on the side away from the main mounting plate 9, and the lower end of the reinforcing plate 22 is connected with the last guiding plate 14. The side mounting plate 21 is used for mounting the main mounting plate 9, and the reinforcing plate 22 is used for improving the structural strength of the side mounting plate 21 and the last guiding plate 14. The screw connection form facilitates the disassembly and assembly between the side mounting plate 21 and the last guiding plate 14.

[0039] The working principle of the second embodiment is as follows: first, the reciprocating driving mechanism drives the last guiding plate 14 to move as a whole towards the last a, until the guiding positioning block a1 at the bottom of the last a is inserted into the longitudinal center positioning groove 15 of the last guiding plate 14, at this time, the longitudinal center positioning groove 15 corrects the last a. Continue to move forward until the last head limiting block 13 contacts the front end of the last a, so as to position the front end of the last a. Then the reversing hydraulic motor 5 rotates the rotating shaft 2 through the driving sprocket 4, the driven sprocket 3 and the chain, thereby driving the clamping body 1 to reverse, and positioning the last a from top to bottom, until the positioning reference planes a2 on both sides of the guiding positioning block a1 on the last a contact with the last guiding plate 14, so as to position the last a. By adjusting the relevant parameters of the reversing hydraulic motor 5, the reversing angle of the clamping body 1 can be adjusted, so as to adapt to different specifications and types of lasts a.

[0040] As can be seen from the above, compared with the first embodiment, the second embodiment can guide and position the last a in multiple directions.

Claims

1. A flip-type shoe last positioning mechanism, including a locking body, characterized in that: It also includes a support frame, one end of the locking body is linked to a rotating shaft, both ends of the rotating shaft are hinged to the support frame through bearings, the end of the rotating shaft is linked to a driven sprocket, the driven sprocket is linked to a driving sprocket through a chain, the driving sprocket is linked to a tilting hydraulic motor, and the tilting hydraulic motor is mounted on the support frame.

2. The flip-type shoe last positioning mechanism according to claim 1, characterized in that: The support frame includes a horizontally placed main mounting plate and side mounting blocks distributed at both ends of the main mounting plate. A support base is detachably connected to the middle of the main mounting plate by screws. A rotating groove penetrating the support base is provided in the middle of the support base. Rotating holes that are hinged to the rotating shaft are provided on both sides of the rotating groove. One end of the locking body is inserted into the rotating groove and fixedly connected to the rotating shaft.

3. The flip-type shoe last positioning mechanism according to claim 2, characterized in that: The support base is provided with a last limiting block on the side away from the main mounting plate. The last limiting block is detachably connected to the two sides of the support base by screws on both sides. The last limiting block is distributed below the locking body.

4. The flip-type shoe last positioning mechanism according to claim 3, characterized in that: The support frame also includes a shoe last guide plate distributed below the main mounting plate and fixedly connected to the main mounting plate. The shoe last guide plate is provided with a longitudinal center positioning groove below the last limiting block. The longitudinal center positioning groove extends toward the side of the shoe last guide plate and the end of the longitudinal center positioning groove is open. The shoe last guide plate is linked to a reciprocating drive mechanism that can drive the shoe last guide plate to reciprocate toward the shoe last.

5. The flip-type shoe last positioning mechanism according to claim 4, characterized in that: The reciprocating drive mechanism includes a lifting block fixed to the bottom of the shoe last guide plate by screws, the lifting block is linked to a slider, the slider is slidably engaged with a slide rail, a transmission block is fixed below the shoe last guide plate, the transmission block is linked to a cylinder, and the cylinder can drive the shoe last guide plate to reciprocate along the axial direction of the slide rail through the transmission block.

6. The flip-type shoe last positioning mechanism according to claim 5, characterized in that: The shoe last guide plate is detachably connected to a side mounting plate by screws. The side mounting plate is parallel to the main mounting plate. The main mounting plate is detachably connected to the side mounting plate by screws. A reinforcing plate is connected to the side of the side mounting plate away from the main mounting plate. The lower end of the reinforcing plate is connected to the shoe last guide plate.

7. The flip-type shoe last positioning mechanism according to any one of claims 1 to 6, characterized in that: The other end of the locking body is provided with a U-shaped groove, the U-shaped groove is open at the end away from the rotating shaft, the other end of the U-shaped groove is provided with symmetrically distributed V-shaped edges, and the locking body is provided with an arc-shaped chamfer at the open end of the U-shaped groove.

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