A positioning tool and method for intelligent transformation and application of traditional shoe lasts
By designing a positioning tool for intelligent transformation of traditional shoe lasts, the error problem of positioning and processing of traditional shoe lasts during the transformation process is solved, precise positioning and processing is achieved, and the product quality of intelligent production is improved.
Patent Information
- Application Number
- CN202211264379.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-10-17
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2042-10-17
AI Technical Summary
During the intelligent transformation of traditional shoe lasts, it is difficult to achieve accurate positioning and processing, resulting in large errors in positioning holes, affecting the assembly accuracy of the robotic arm and subsequent production quality.
A positioning tool including a bottom plate, a shoe last fixing position, a front compression assembly, a lateral positioning mechanism, a side compression mechanism and a detection mechanism are designed. The precise fixing and positioning of the shoe last is achieved through an elastic push rod and a locking mechanism to ensure that each shoe last is processed in the same position.
It realizes the precise positioning and processing of traditional shoe lasts, reduces processing errors, improves the assembly accuracy of shoe lasts and robotic arms, and promotes the product quality of intelligent production.
Smart Images

Figure CN115670078B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of shoe last processing equipment, and in particular to a positioning tool and method for intelligent transformation application of a traditional shoe last. Background Art
[0002] The shoe last is a common shoemaking tool. The shape of the shoe last imitates the shape of the human foot. It plays the role of filling and fixing the shape of the upper during shoemaking.
[0003] With the rise of intelligent production lines in the shoemaking industry and the application of industrial robots in automated shoemaking production lines, a large number of automated shoe lasts adapted to intelligent production are needed. The difference between automated shoe lasts and traditional shoe lasts is that the automated shoe last has a positioning block on its top surface, and the automated shoe last is connected to equipment such as a robotic arm through the positioning block. In order to ensure the reliable operation of the program, it is necessary to ensure that the appearance and positioning block of each shoe last of the same model are consistent. Usually, automated shoe lasts are produced by machining, and the shoe last body and the positioning block are produced in the same processing step.
[0004] In the intelligent upgrading and renovation projects of traditional shoemaking enterprises, there are a large number of ordinary traditional shoe lasts on the traditional production lines. The traditional shoe lasts do not have positioning blocks, so they cannot be directly used on the intelligent production lines. They need to be transformed, and the transformation method is usually to add positioning blocks to the upper end of the traditional shoe lasts.
[0005] The following difficulties exist in the transformation process: installing the positioning block requires processing the reference plane and positioning holes on the shoe last, but the shoe last is of irregular shape and most of the positions are irregular curved surfaces, and it is difficult to position the shoe last using a CNC machining center. For the transformation of a batch of traditional shoe lasts of the same shape and size, it is necessary to keep the processing position of each shoe last consistent. However, the existing clamping equipment and methods make it difficult to clamp the shoe last in the same position every time, which results in large errors in the reference plane and positioning holes of each shoe last processed, affecting the assembly accuracy of the shoe last and the robotic arm, and ultimately affecting the quality of subsequent intelligent production products. Summary of the invention
[0006] In order to overcome the deficiencies in the prior art, the present invention provides a positioning tool and method for intelligently transforming and applying a traditional shoe last to ensure the processing accuracy of the shoe last.
[0007] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is as follows: a positioning tool for intelligent transformation and application of a traditional shoe last, used for positioning the shoe last, characterized in that: it comprises a bottom plate, a shoe last fixing position is formed on the bottom plate, a front clamping assembly and a rear fixing baffle are respectively provided on the front and rear sides of the shoe last fixing position, and a lateral positioning mechanism and a lateral clamping mechanism are respectively provided on the left and right sides of the shoe last fixing position;
[0008] The front pressing assembly comprises a first elastic push rod and a front baffle, wherein the front baffle is mounted on the first elastic push rod, and the first elastic push rod has an elastic force to push the front baffle toward the rear fixing plate;
[0009] The lateral positioning mechanism includes a fixed transverse baffle and a plurality of transverse positioning components. The fixed transverse baffle extends in the front-rear direction toward the shoe last fixed position. The transverse positioning component is arranged below the fixed transverse baffle. One end of the transverse positioning component facing the shoe last fixed position is provided with a tightening end head. The transverse positioning component is used to adjust and position the left and right positions of the tightening end head arranged thereon.
[0010] The lateral clamping mechanism comprises a movable transverse block, a locking mechanism, and a lateral clamping assembly, wherein the movable transverse block faces and corresponds to the fixed transverse block, the movable transverse block extends in the front-rear direction, the movable transverse block is installed on the locking mechanism, the locking mechanism is used to adjust and position the left and right positions of the movable transverse block, the lateral clamping assembly is arranged below the movable transverse block, and the lateral clamping assembly comprises a second elastic push rod, a tightening end head is arranged at the end of the second elastic push rod, and the second elastic push rod has an elastic force to push the tightening end head arranged thereon toward the fixed position direction of the shoe last;
[0011] The tightening end has an edge which is directed toward the fixing position of the shoe last and extends vertically.
[0012] Furthermore, it also includes a bottom positioning mechanism, which is arranged below the shoe last fixing position. The bottom positioning mechanism includes a longitudinal positioning component and a support bar. The support bar is arranged above the longitudinal positioning component and is adjusted and positioned in height by the longitudinal adjustment component. The support bar extends laterally in the left and right directions and has a laterally extending edge at its upper end.
[0013] Furthermore, two groups of shoe last fixing positions are provided on the bottom plate, and the locking mechanism includes a sliding seat, a slider, an eccentric wheel, and a reset spring. The sliding seat is provided between the two groups of shoe last fixing positions, and the sliders are provided in two groups and are respectively installed at both ends of the sliding seat. A movable transverse baffle is respectively provided at the outward end of the two groups of sliders. The eccentric wheel is rotatably installed on the sliding seat and is located between the two groups of sliders. The two groups of sliders are synchronously pushed to move toward both sides through the rotation of the eccentric wheel. The reset spring connects the two groups of sliders, and the reset spring has an elastic force to pull the two groups of sliders closer to each other.
[0014] Furthermore, the lateral positioning components are provided with two groups, and the two groups of lateral positioning components are arranged at intervals in the front-to-back direction. The side clamping components are provided with one group, and the side clamping components and the two groups of lateral positioning components are staggered in the front-to-back direction.
[0015] Furthermore, the lateral positioning assembly includes a guide block, a guide rod, and a locking bolt. The guide rod is laterally movable in the guide block, and the locking bolt is disposed on the guide block and faces the guide rod. The relative position of the guide block and the guide rod is positioned by the locking bolt.
[0016] Furthermore, it also includes a detection mechanism, which includes a control circuit board, a first electrode wire, and a plurality of second electrode wires. One end of the first electrode wire is connected to the control circuit board, and the other end is used to connect to the shoe last. One end of the second electrode is connected to the control circuit board, and the other end of each second electrode wire is respectively connected to each tightening end. The shoe last is made of conductive material, and the tightening end is made of conductive material.
[0017] Furthermore, a magnetic block is provided at the other end of the first electrode wire, the shoe last is made of magnetic conductive material, and the first electrode wire is adsorbed on the shoe last through the magnetic block.
[0018] Furthermore, an insulating connection is provided between the lateral positioning assembly and the tightening end head, and an insulating connection is provided between the second elastic push rod and the tightening end head.
[0019] A method for intelligent transformation and application of a traditional shoe last, characterized in that: based on any one of the above-mentioned positioning tooling for intelligent transformation and application of a traditional shoe last, the method comprises the following steps:
[0020] S1. The traditional shoe last to be processed is placed in the shoe last fixed position, the rear end of the shoe last is against the rear fixed baffle, the front baffle is located at the front end of the shoe last, and the shoe last is pressed back under the action of the first elastic push rod;
[0021] S2. The ankle side of the upper part of the shoe last is placed against the fixed transverse bar, and each transverse positioning assembly is adjusted so that the tightening end on each transverse positioning assembly moves to contact one side of the shoe last, and then the transverse positioning assembly is locked, and the second elastic push rod drives the tightening end to press against the other side of the shoe last;
[0022] S3. The locking mechanism pushes the movable transverse baffle toward one side of the fixed transverse baffle, and the ankle portion of the shoe last is clamped between the fixed transverse baffle and the movable transverse baffle. At this time, the shoe last is in contact with the rear fixing plate, the front baffle, and each tightening end;
[0023] S5. Install the positioning fixture with the shoe last to the CNC machining equipment to machine a reference plane on the top surface of the shoe last, and machine positioning holes on the reference plane;
[0024] S6. The locking mechanism drives the movable transverse blocking bar to move in the reverse direction to unlock the shoe last. The shoe last is removed. During this process, the position of the transverse positioning assembly is kept unchanged. The positioning blocks are installed on the corresponding positioning holes on the reference plane of the processed shoe last.
[0025] S7. Place the next conventional shoe last to be processed of the same shape and size into the shoe last fixed position, with the rear end of the shoe last against the rear fixed baffle, and the ankle side of the upper part of the shoe last against the fixed transverse baffle, and adjust the position of the shoe last so that one side of the shoe last contacts the tightening end on each transverse positioning assembly, the front baffle against the front end of the shoe last, and the second elastic push rod drives the tightening end to press against the other side of the shoe last;
[0026] S8. The locking mechanism pushes the movable transverse baffle toward one side of the fixed transverse baffle, and the ankle portion of the shoe last is clamped between the fixed transverse baffle and the movable transverse baffle;
[0027] S9. Return to S5 and repeat the processing step.
[0028] It can be seen from the above description of the present invention that, compared with the prior art, the positioning tool and method for intelligent transformation and application of a traditional shoe last provided by the present invention has the following advantages:
[0029] 1. The positioning tooling realizes the precise fixation of the shoe last, ensuring that the traditional shoe lasts of the same shape and size are installed at the same position of the positioning tooling, ensuring the subsequent processing accuracy of the shoe last and the assembly accuracy of the positioning block, realizing the secondary processing of the traditional shoe last to complete the intelligent application transformation, and reducing the cost of the enterprise's intelligent upgrading and transformation.
[0030] 2. After adjusting the first shoe last, the lateral positioning mechanism and the bottom positioning mechanism will maintain a fixed position to achieve positioning for subsequent shoe lasts; the front clamping assembly and the side clamping assembly use elastic push rods to facilitate the disassembly and assembly of the shoe last; the locking mechanism drives the movable transverse baffle and the fixed transverse baffle to clamp the shoe last, ensuring that the shoe last can be machined normally afterwards.
[0031] 3. A detection mechanism is provided to judge whether the shoe last is installed in place through the conduction state of the first electrode line and the second electrode line, thereby reducing the occurrence of errors during manual installation and further ensuring the installation accuracy of the shoe last in the positioning tooling. BRIEF DESCRIPTION OF THE DRAWINGS
[0032] Figure 1 The figure is a schematic diagram of the positioning tooling structure for intelligent transformation of a traditional shoe last according to the present invention.
[0033] Figure 2 The first is a top view of the present invention in use.
[0034] Figure 3 FIG2 is a top view of the present invention in use.
[0035] Figure 4 It is a schematic diagram of the principle structure of the detection mechanism of the present invention.
[0036] Figure 5It is a schematic diagram of a traditional shoe last of the present invention.
[0037] Figure 6 The figure is a schematic diagram of the shoe last intelligently modified according to the present invention.
[0038] The symbols in the figure correspond to the following: 1. bottom plate, 11. shoe last fixing position, 2. front clamping assembly, 21. first elastic push rod, 22. front baffle, 3. rear fixed baffle, 4. lateral positioning mechanism, 41. fixed transverse baffle, 42. transverse positioning assembly, 421. guide block, 422. guide rod, 423. locking bolt, 5. lateral clamping mechanism, 51. movable transverse baffle, 52. locking mechanism, 521. slide seat, 522. slider, 523. eccentric wheel, 524. reset spring, 53. lateral clamping assembly, 531. second elastic push rod, 6. bottom positioning mechanism, 61. longitudinal positioning assembly, 62. support bar, 7. tightening end, 8. detection mechanism, 81. control circuit board, 82. first electrode line, 821. magnetic suction block, 83. second electrode line. DETAILED DESCRIPTION
[0039] The present invention is further described below through specific implementation modes.
[0040] Reference Figures 1 to 4 As shown, a positioning tool for intelligent transformation and application of a traditional shoe last is used to position the shoe last, comprising a bottom plate 1, on which a shoe last fixing position 11 is formed, a front pressing component 2 and a rear fixing baffle 3 are respectively provided on the front and rear sides of the shoe last fixing position 11, a lateral positioning mechanism 4 and a lateral pressing mechanism 5 are respectively provided on the left and right sides of the shoe last fixing position 11, and a bottom positioning mechanism 6 is provided below the shoe last fixing position 11;
[0041] The front pressing assembly 2 includes a first elastic push rod 21 and a front baffle 22. The front baffle 22 is mounted on the first elastic push rod 21, and the first elastic push rod 21 has an elastic force to push the front baffle 22 toward the rear fixing plate 3.
[0042] The lateral positioning mechanism 4 includes a fixed transverse baffle 41 and a plurality of transverse positioning components 42. The fixed transverse baffle 41 extends toward the shoe last fixing position 11 and in the front-to-back direction. The transverse positioning component 42 is arranged below the fixed transverse baffle 41. The end of the transverse positioning component 42 facing the shoe last fixing position 11 is provided with a tightening end 7. The transverse positioning component 42 is used to adjust and position the left and right positions of the tightening end 7 arranged thereon; the transverse positioning component 42 is provided with two groups, and the two groups of transverse positioning components 42 are arranged at intervals in the front-to-back direction. The transverse positioning component 42 includes a guide block 421, a guide rod 422, and a locking bolt 423. The guide rod 422 is laterally movable and arranged in the guide block 421. The locking bolt 423 is arranged on the guide block and toward the guide rod 422. The relative position of the guide block 422 and the guide rod 421 is positioned by the locking bolt 423.
[0043] The lateral clamping mechanism 5 includes a movable transverse baffle 51, a locking mechanism 52, and a side clamping assembly 53. The movable transverse baffle 51 faces and corresponds to the fixed transverse baffle 41. The movable transverse baffle 51 extends in the front-to-back direction. The movable transverse baffle 51 is installed on the locking mechanism 52. The locking mechanism 52 is used to adjust and position the left and right positions of the movable transverse baffle 51. The side clamping assembly 53 is arranged below the movable transverse baffle 51. The side clamping assembly 53 includes a second elastic push rod 531. A tightening end 7 is provided at the end of the second elastic push rod 531. The second elastic push rod 531 has an elastic force that pushes the tightening end 7 provided thereon toward the shoe last fixing position 11. The side clamping assembly 53 is provided with a group, and the side clamping assembly 53 and the two groups of transverse positioning assemblies 42 are staggered in the front-to-back direction.
[0044] The tightening end 7 has an edge which is directed toward the fixing position of the shoe last and extends vertically.
[0045] The bottom positioning mechanism 6 is arranged below the shoe last fixing position 11, and the bottom positioning mechanism 6 includes a longitudinal positioning component 61 and a support bar 62. The support bar 62 is arranged above the longitudinal positioning component 61 and is adjusted and positioned in height by the longitudinal adjustment component 61. The support bar 62 extends laterally in the left-right direction and has a laterally extending edge at its upper end.
[0046] Two groups of shoe last fixing positions 11 are provided on the base plate 1, and the locking mechanism 52 includes a slide seat 521, a slider 522, an eccentric wheel 523, and a reset spring 524. The slide seat 521 is provided between the two groups of shoe last fixing positions 11, and the slider 522 is provided with two groups and is respectively installed at both ends of the slide seat 521. A movable transverse baffle 51 is respectively provided at the outward end of the two groups of sliders 522. The eccentric wheel 523 is rotatably installed on the slide seat 521 and is located between the two groups of sliders 522. The two groups of sliders 522 are synchronously pushed to move toward both sides by the rotation of the eccentric wheel 523. The reset spring 524 connects the two groups of sliders 522, and the reset spring 524 has an elastic force to pull the two groups of sliders 522 closer to each other.
[0047] It also includes a detection mechanism 8, which includes a control circuit board 81, a first electrode line 82, and a plurality of second electrode lines 83. One end of the first electrode line 82 is connected to the control circuit board 81, and the other end is used to connect the shoe last. One end of the second electrode line 83 is connected to the control circuit board 81, and the other end of each second electrode line 83 is connected to each top tightening terminal 7 and the support bar 62 respectively. The shoe last is made of conductive material, and the top tightening terminal 7 is made of conductive material. The other end of the first electrode line 82 is provided with a magnetic suction block 821, and the shoe last is made of magnetic conductive material. The first electrode line 82 is adsorbed on the shoe last through the magnetic suction block 821. The lateral positioning component 42 is insulated from the top tightening terminal 7, the second elastic push rod 531 is insulated from the top tightening terminal 7, the support bar 62 is made of conductive material, and the longitudinal positioning component 61 is insulated from the support bar 62.
[0048] A method for intelligent transformation and application of a traditional shoe last comprises the following steps:
[0049] S1. A base plate is provided with two shoe last fixing positions 11, which correspond to the left shoe last and the right shoe last respectively, and a pair of shoe lasts can be installed at one time for simultaneous processing; a traditional shoe last to be processed is placed in the shoe last fixing position 11, the front part of the bottom of the shoe last is placed on the base plate 1, and the rear part is placed on the support bar 62 of the bottom positioning mechanism 6, the rear end of the shoe last is against the rear fixed baffle 3, the front baffle 22 is located at the front end of the shoe last, and the shoe last is pressed backwards under the action of the first elastic push rod 21, the longitudinal positioning component 61 is adjusted to make the upper end surface of the shoe last close to the horizontal plane, and then the longitudinal positioning component 61 is locked.
[0050] S2. The ankle side of the upper part of the shoe last is placed against the fixed transverse baffle 41, and each transverse positioning component 42 is adjusted to move the tightening end 7 on each transverse positioning component 42 to contact one side of the shoe last, and then lock the transverse positioning component 7, and the second elastic push rod 531 drives the tightening end 7 to press against the other side of the shoe last; take the magnetic block 821 of the first electrode line 82 and adsorb it on the shoe last. If the detection mechanism 8 recognizes that the first electrode line 82 and each second electrode line 83 are in a conductive state at this time, it means that the adjustment of step S2 is accurate. If there is a second electrode line 83 that is not conductive, re-perform step S2 adjustment.
[0051] S3. The eccentric wheel 523 of the locking mechanism 52 is rotated, and the eccentric wheel 523 pushes the sliders 522 on both sides to move outwards, that is, the two movable transverse baffles 51 are pushed out toward the fixed transverse baffles 41 of the two sets of shoe last fixing positions 11, and the two shoe lasts are fixed in one action. The ankle of the shoe last is clamped between the fixed transverse baffles 41 and the movable transverse baffles 51. The clamping purpose is to provide a larger clamping force to ensure that the position of the shoe last is fixed during subsequent processing. At this time, it is necessary to ensure that the detection mechanism 8 recognizes that the first electrode line 82 and each second electrode line 83 are in a conductive state, that is, the shoe last is in contact with each tightening end 7 and the support bar 62. If the detection mechanism 8 recognizes that there is a second electrode line 83 that is not conductive, it means that the position of the shoe last has shifted, and it is necessary to re-perform S3 action or return to S2 for readjustment.
[0052] S5. Place the positioning fixture with the shoe last installed on a CNC machining device to machine a reference plane on the top surface of the shoe last, and machine positioning holes on the reference plane.
[0053] S6. The eccentric wheel 523 of the locking mechanism 52 is rotated in the opposite direction, and the reset spring 524 pulls the two sliders 522 to move closer to each other to drive the movable transverse baffle 51 to move in the opposite direction to unlock, remove the shoe last, and remove the magnetic block 821 of the first electrode line 82. During this process, the position of the transverse positioning component 42 and the position of the longitudinal positioning component 61 are kept unchanged, and the positioning blocks are installed on the corresponding positioning holes on the reference plane of the processed shoe last, thus completing the intelligent transformation of a set of traditional shoe lasts.
[0054] S7. Place the next traditional shoe last to be processed of the same shape and size into the shoe last fixing position 11, the magnetic block 821 of the first electrode line 82 is adsorbed on the shoe last, the front part of the bottom of the shoe last is placed on the bottom plate 1, and the rear part is placed on the support bar 62 of the bottom positioning mechanism 6, the rear end of the shoe last is against the rear fixed baffle 3, and the ankle side of the upper part of the shoe last is against the fixed transverse baffle 71, the first elastic push rod 21 drives the front baffle 22 to press against the front end of the shoe last, and the second elastic push rod 531 drives the tightening end 7 to press against one side of the shoe last, and the position of the shoe last is adjusted so that the other side of the shoe last contacts the tightening end 7 on each transverse positioning component 42, so that the detection mechanism 8 recognizes that the first electrode line 82 and each second electrode line 83 are in a conductive state.
[0055] S8. The eccentric wheel 523 of the locking mechanism 52 is rotated, and the eccentric wheel 523 pushes the sliders 522 on both sides to move outwards respectively, so that the movable transverse baffle 51 is pushed toward the fixed transverse baffle 41, and the ankle of the shoe last is clamped between the fixed transverse baffle 41 and the movable transverse baffle 51. At this time, it is necessary to ensure that the detection mechanism 8 recognizes that the first electrode line 82 and each second electrode line 83 are in a conductive state, that is, the shoe last is in contact with each tightening terminal 7 and the support bar 62. If the detection mechanism 8 recognizes that there is a non-conductive second electrode line 83, it means that the position of the shoe last has shifted, and it is necessary to perform S8 again;
[0056] S9. Return to S5 and repeat the processing step.
[0057] The above is only a specific implementation of the present invention, but the design concept of the present invention is not limited to this. Any non-substantial changes to the present invention using this concept shall be deemed as an infringement of the protection scope of the present invention.
Claims
1. A positioning tool for intelligent transformation of traditional shoe lasts, used for positioning shoe lasts, characterized by: The shoe last fixing part comprises a bottom plate, a shoe last fixing part is formed on the bottom plate, a front pressing assembly and a rear fixing baffle are respectively arranged on the front and rear sides of the shoe last fixing part, and a lateral positioning mechanism and a lateral pressing mechanism are respectively arranged on the left and right sides of the shoe last fixing part; The front pressing assembly comprises a first elastic push rod and a front baffle, wherein the front baffle is mounted on the first elastic push rod, and the first elastic push rod has an elastic force to push the front baffle toward the rear fixing plate; The lateral positioning mechanism includes a fixed transverse baffle and a plurality of transverse positioning components. The fixed transverse baffle extends in the front-rear direction toward the shoe last fixed position. The transverse positioning component is arranged below the fixed transverse baffle. One end of the transverse positioning component facing the shoe last fixed position is provided with a tightening end head. The transverse positioning component is used to adjust and position the left and right positions of the tightening end head arranged thereon. The lateral clamping mechanism comprises a movable transverse block, a locking mechanism, and a lateral clamping assembly, wherein the movable transverse block faces and corresponds to the fixed transverse block, the movable transverse block extends in the front-rear direction, the movable transverse block is installed on the locking mechanism, the locking mechanism is used to adjust and position the left and right positions of the movable transverse block, the lateral clamping assembly is arranged below the movable transverse block, and the lateral clamping assembly comprises a second elastic push rod, a tightening end head is arranged at the end of the second elastic push rod, and the second elastic push rod has an elastic force to push the tightening end head arranged thereon toward the fixed position direction of the shoe last; The tightening end has an edge which is directed toward the shoe last fixing position and extends vertically; The lateral positioning components are provided with two groups, and the two groups of lateral positioning components are arranged at intervals in the front-to-back direction. The side clamping components are provided with one group, and the side clamping components and the two groups of lateral positioning components are arranged in a staggered manner in the front-to-back direction.
2. According to claim 1, a positioning tool for intelligent transformation and application of traditional shoe lasts, characterized in that: It also includes a bottom positioning mechanism, which is arranged below the shoe last fixing position. The bottom positioning mechanism includes a longitudinal positioning component and a support bar. The support bar is arranged above the longitudinal positioning component and is adjusted and positioned in height by the longitudinal adjustment component. The support bar extends laterally in the left-right direction and has a laterally extending edge at its upper end.
3. According to claim 1, a positioning tool for intelligent transformation and application of traditional shoe lasts, characterized in that: Two groups of shoe last fixing positions are provided on the bottom plate, and the locking mechanism includes a sliding seat, a slider, an eccentric wheel, and a reset spring. The sliding seat is provided between the two groups of shoe last fixing positions, and the slider is provided in two groups and is respectively installed at both ends of the sliding seat. A movable transverse baffle is respectively provided at the outward end of the two groups of sliders. The eccentric wheel is rotatably installed on the sliding seat and is located between the two groups of sliders. The two groups of sliders are synchronously pushed to move toward both sides through the rotation of the eccentric wheel. The reset spring connects the two groups of sliders, and the reset spring has an elastic force to pull the two groups of sliders closer to each other.
4. According to claim 1, a positioning tool for intelligent transformation and application of traditional shoe lasts, characterized in that: The lateral positioning assembly includes a guide block, a guide rod, and a locking bolt. The guide rod is arranged in the guide block so as to be laterally movable. The locking bolt is arranged on the guide block and faces the direction of the guide rod. The relative position of the guide block and the guide rod is positioned by the locking bolt.
5. The positioning tool for intelligent transformation of traditional shoe lasts according to claim 1 is characterized by: It also includes a detection mechanism, which includes a control circuit board, a first electrode line, and a plurality of second electrode lines. One end of the first electrode line is connected to the control circuit board, and the other end is used to connect to the shoe last. One end of the second electrode is connected to the control circuit board, and the other end of each second electrode line is respectively connected to each tightening end. The shoe last is made of conductive material, and the tightening end is made of conductive material.
6. The positioning tool for intelligent transformation of traditional shoe lasts according to claim 5 is characterized by: A magnetic block is provided at the other end of the first electrode wire, the shoe last is made of magnetic conductive material, and the first electrode wire is adsorbed on the shoe last through the magnetic block.
7. The positioning tool for intelligent transformation of traditional shoe lasts according to claim 5 is characterized by: An insulating connection is provided between the lateral positioning assembly and the tightening end head, and an insulating connection is provided between the second elastic push rod and the tightening end head.
8. A method for intelligent transformation and application of traditional shoe lasts, characterized in that: A positioning tool for intelligent transformation and application of a traditional shoe last according to any one of claims 1 to 7 comprises the following steps: S1. The traditional shoe last to be processed is placed in the shoe last fixed position, the rear end of the shoe last is against the rear fixed baffle, the front baffle is located at the front end of the shoe last, and the shoe last is pressed back under the action of the first elastic push rod; S2. The ankle side of the upper part of the shoe last is placed against the fixed transverse blocking bar, and each transverse positioning component is adjusted so that the tightening end on each transverse positioning component moves to contact one side of the shoe last, and then the transverse positioning component is locked, and the second elastic push rod drives the tightening end to press against the other side of the shoe last; S3. The locking mechanism pushes the movable transverse baffle toward one side of the fixed transverse baffle, and the ankle portion of the shoe last is clamped between the fixed transverse baffle and the movable transverse baffle. At this time, the shoe last is in contact with the rear fixing plate, the front baffle, and each tightening end; S5. Install the positioning fixture with the shoe last to the CNC machining equipment to machine a reference plane on the top surface of the shoe last, and machine positioning holes on the reference plane; S6. The locking mechanism drives the movable transverse blocking bar to move in the reverse direction to unlock the shoe last. The shoe last is removed. During this process, the position of the transverse positioning assembly is kept unchanged. The positioning blocks are installed on the corresponding positioning holes on the reference plane of the processed shoe last. S7. Place the next conventional shoe last to be processed of the same shape and size into the shoe last fixed position, with the rear end of the shoe last against the rear fixed baffle, and the ankle side of the upper part of the shoe last against the fixed transverse baffle, and adjust the position of the shoe last so that one side of the shoe last contacts the tightening end on each transverse positioning assembly, the front baffle against the front end of the shoe last, and the second elastic push rod drives the tightening end to press against the other side of the shoe last; S8. The locking mechanism pushes the movable transverse baffle toward one side of the fixed transverse baffle, and the ankle portion of the shoe last is clamped between the fixed transverse baffle and the movable transverse baffle; S9. Return to S5 and repeat the processing step.
Citation Information
Patent Citations
Shoe tree positioning device
CN106073035A
Upper and sole press-fitting equipment
CN110025083A
Midsole position correcting and nailing system
CN114224029A