WO2024011668A1

WO2024011668A1 - Shoe last assembly

Info

Publication number: WO2024011668A1
Application number: PCT/CN2022/108818
Authority: WO
Inventors: 郑国宏; 尹奕雯; 庄静雅; 郑颖博; 郑铸杰
Original assignee: 郑国宏
Priority date: 2022-07-11
Filing date: 2022-07-29
Publication date: 2024-01-18
Also published as: CN115024560A

Abstract

Disclosed in the present invention is a shoe last assembly, comprising a shoe last and a support base matingly fixed to the shoe last. The shoe last comprises a sole part and a heel part; the sole part is slidably connected to the heel part; the support base comprises a first support base fixed onto the lower end of the sole part and a second support base fixed onto the lower end of the heel part; the heel part is in transverse insertion positioning fit with the second support base, wherein the transverse insertion positioning fit indicates that in the two components which are matingly connected to each other, one of the components is provided with a sliding mounting slot comprising a transverse insertion opening, and the other one is correspondingly provided with a sliding mounting block which can be transversely inserted and mounted in the sliding mounting slot along the insertion opening, and when being inserted into the sliding mounting slot, the sliding mounting block is in longitudinal limiting fit with the sliding mounting slot. The present invention provides a shoe last assembly which has a stable and reliable structure and higher shoe making precision.

Description

Shoe last components

Technical field

The invention relates to a shoe last assembly.

Background technique

Shoe last is a traditional shoemaking tool. The shoe last component in the current prior art (taking the shoe last component developed by Fagus Company as an example, refer to the German patent document DE202020103643U1), as shown in Figure 1: includes a shoe last, and the shoe last includes a sole part A1 and a heel part A2 , a sliding connection is formed between the heel part A2 and the sole part A1, and the heel part A2 can move upward relative to the sole part A1, so that after the shoe upper is made, it can be easily removed from the shoe last. The lower end of the sole part A1 is usually fixed with a support seat A3, and the heel part A2 is connected to a drive rod A4. The support seat A3 is used to fix the shoe last on the shoemaking station, and the drive rod A4 is used to connect with the shoemaking equipment. The driving mechanism cooperates with the transmission to drive the heel to move up and down.

At present, the shoe lasts in the above-mentioned prior art have the following defects:

(1) The support base A3 and the sole A1 and the drive rod A4 and the heel A2 are fixed by multiple vertical screws. Since the sole A1 and heel A2 of the shoe last often need to be relatively up and down, Movement, the screws are prone to loosening after long-term stress, resulting in shaking and shifting between the support base A3 and the sole of the foot A1 and between the drive rod A4 and the heel A2, resulting in a decrease in the accuracy of shoemaking, and different batches of production shoes appear to be of different sizes; currently, in order to ensure the accuracy of shoemaking, it is often necessary to manually lock and adjust the screws before and during the shoemaking process to keep multiple sets of shoe lasts in a consistent and stable state. , and the manual debugging method is difficult to ensure that multiple screws are evenly stressed, and it is easy to cause the position of the shoe last to deviate, which will also lead to a decrease in shoemaking accuracy;

(2) In order to keep the sole part A1 and the heel part A2 in a stable combined state to prevent shaking during the shoemaking process, the support seat A3 of the existing shoe last is usually provided with a limiting groove A5. One end of the drive rod A4 is fixedly connected to the heel part A2, and the other end is provided with a limiter block A6 that is inserted and fitted transversely with the limiter slot A5. When the limiter block A6 is located in the limiter slot A5, it can limit the drive rod. A4 and the heel part A2 move up and down. When it is necessary to drive the heel part A2 to move upward, first the limit block A6 needs to be laterally removed from the limit groove A5 and rearward, and then the drive rod A4 is used to drive the heel part A2 to move upward. After the shoe body comes out of the shoe last, the driving rod A4 drives the heel part A2 to move downward and reset. Finally, the limit block A6 at the other end of the driving rod A4 is pushed forward laterally and inserted into the limit groove A5 for positioning. , the steps are more cumbersome and less efficient, and it is necessary to ensure that the driving mechanism can at least generate driving force in both vertical and horizontal directions, and it is also necessary to ensure that the limit block A6 can be accurately inserted into the limit slot A5. This There are high requirements for machining accuracy, which makes the driving mechanism have high manufacturing costs;

(3) There is no anti-falling structure between the sole part A1 and the heel part A2, which makes the heel part A2 easy to slide off the sole part A1. Since the sizes of the sole part A1 and the heel part A2 have a matching relationship, when a large number of the sole part A1 and the heel part A2 of various sizes are stored together, these parts are easily confused and it is inconvenient to organize, and these shoes When the last parts are placed together, it is easy to bruise each other, which affects the service life of the shoe last.

Contents of the invention

In view of the shortcomings of the existing technology, the present invention provides a shoe last assembly with a stable and reliable structure and higher shoemaking accuracy.

In order to achieve the above objects, the present invention provides the following technical solutions: a shoe last assembly,

It includes a shoe last and a support seat that is fixed with the shoe last. The shoe last includes a sole part and a heel part. The sole part and the heel part form a sliding connection. The support seat includes a first support seat fixed at the lower end of the sole part. The second support seat is fixed at the lower end of the heel part. The heel part and the second support seat form a transverse plug-in positioning fit. The transverse plug-in positioning fit refers to one of the two parts that are connected together. It has a sliding installation groove including a transverse insertion opening, and the other component is correspondingly provided with a sliding installation block that can be laterally inserted and installed into the sliding installation groove along the insertion opening, and the sliding installation block is connected with the sliding installation groove when inserted into the sliding installation groove. It forms a longitudinal limited fit.

The beneficial effects of the present invention are: adopting the connection method of transverse plug-in positioning and matching, it can provide relatively reliable connection performance in the longitudinal direction, especially when the heel part moves up and down frequently, it can ensure that there is no gap between the heel part and the second support seat. It will produce longitudinal shaking, providing a more reliable connection effect, and does not require repeated manual debugging of the connection, which improves the accuracy and efficiency of shoemaking; the horizontal insertion port can easily insert the sliding installation block into the sliding installation groove. It forms a longitudinal limit match with it, which not only has a simple structure, but also is more convenient to install.

Furthermore, a transverse plug-in positioning fit is formed between the sole part and the first support base.

Using the above solution, similarly, the connection between the sole of the foot and the first support base adopts a horizontal plug-in and positioning fit, which not only has a simple structure and is easy to install, but also can provide a more reliable connection performance in the longitudinal direction, especially for the heel. When moving up and down frequently, it can also ensure that the sole of the foot and the first support base will not be driven by the second support base and the heel to produce longitudinal shaking and displacement, providing a more reliable connection effect and eliminating the need for manual alignment of the connection. Repeated debugging was carried out to improve shoemaking accuracy and efficiency.

Further, the sliding installation groove includes two spaced guide side walls, a space for inserting the sliding installation block is formed between the two guide side walls, and the upper ends of the two guide side walls each have a direction facing Guide ribs/guide grooves are provided in the middle direction between the two, and guide grooves/guide ribs are provided on both sides of the sliding mounting block to cooperate with the guide ribs/guide grooves for transverse guide insertion and at the same time form longitudinal limiting fits.

Using the above solution, the cooperation of the guide groove/guide rib can improve the transverse guide insertion effect on the one hand, and can also provide the longitudinal limiting effect on the other hand. The structure is simple, convenient for production and processing, and can improve the reliability of the connection. .

Further, a limiting member for limiting the lateral relative movement between the sliding installation block and the sliding installation groove is passed between the two components of the transverse plug-in positioning fit.

Using the above solution, by inserting the limiter between the sliding installation block and the sliding installation groove, the lateral relative positions of the two can be restricted, and lateral shaking and displacement between the sliding installation block and the sliding installation groove can be prevented. , ensuring the reliability of the plug-in connection and preventing the sliding installation block from coming out of the sliding installation groove.

Furthermore, a self-locking mechanism is provided on the corresponding mating surfaces of the first support seat and the second support seat/foot sole and heel portion, and the self-locking mechanism can automatically lock itself when the heel portion moves to a state of being combined with the sole portion. The relative position of the two is locked, and the combined state means that the heel part and the sole part are combined into a complete shoe last shape.

Using the above solution, the setting of the self-locking mechanism can automatically lock the relative positions of the heel and the sole of the foot when the heel moves to the state of joining, thereby avoiding relative displacement of the two and ensuring the accuracy of shoemaking. In the existing technology, the locking structure is mainly realized by the cooperation of the limit block and the limit groove. It also requires a driving mechanism to apply driving force laterally to insert the limit block into the limit groove to achieve locking. The driving mechanism itself It requires energy and a certain amount of time to produce the locking action. The solution of this application can reduce the requirements on the driving mechanism, lower the cost, and can also improve the efficiency of shoemaking.

Further, the self-locking mechanism includes a pin shaft, an elastic member and a pin hole. The pin shaft cooperates with the pin hole to be inserted and limited, and the elastic member is used to drive the pin shaft to be inserted into the pin hole. The pin hole is arranged on the third A first mounting hole is provided on the mating surface of a support seat, and a first mounting hole is provided on the mating surface of the second support seat. The pin and the elastic member are both arranged in the first mounting hole. The lower end of the first support seat or The side portion has an unlocking hole communicated with the first mounting hole.

Using the above solution, the setting of the unlocking hole can facilitate the insertion of external components to push the pin to withdraw from the pin hole; the elastic force of the elastic member is used to drive the pin to be inserted into the pin hole, so that the lock can be automatically realized without Additional driving force is required; since the second support base needs to follow the up and down movement of the heel, the first support base remains relatively stationary. Setting the pin hole on the mating surface of the first support base is more conducive to realizing the mechanically automated unlocking function.

Further, the mating surface of the first support seat and the mating surface of the sole part are smoothly and excessively connected, and the pin can be driven to slide along the mating surface of the first support seat and the mating surface of the sole part.

Using the above solution, this allows the pin to slide along the mating surface of the first support seat and the mating surface of the sole of the foot, thereby increasing the up and down movement range of the heel; in addition, it is also beneficial to reduce the volume of the support seat, making The structure of the support base is more compact.

Further, the first mounting hole penetrates the second support base, and the front end of the first mounting hole is limitedly matched with the pin to prevent the pin from protruding forward from the front end of the first mounting hole. The rear end is screwed with a plug, and the elastic member is a spring disposed between the pin and the plug.

The above solution has a simple structure and facilitates the installation of pins, springs, plugs and other components; in addition, the positioning position of the plug can be adjusted by using the screwed matching structure of the plug and the first installation hole, thereby enabling the elastic member to be adjusted Adjust the preload force exerted on the pin.

Further, a limiting mechanism is provided on the corresponding mating surfaces of the first support seat and the second support seat/foot sole part and the heel part, and the limit mechanism can limit the first support base and the second support base/foot sole part and the heel part. The relative range of movement of the heel is restricted.

Using the above solution, the setting of the limiting mechanism can prevent the separation between the first support seat and the second support seat/the heel part and the sole part, especially to prevent the loss of the heel part, when there are many models of different sizes in the shoemaking factory. When using shoe last components, it can also prevent size matching errors between the heel and sole of the foot and the problem of mutual collision when a large number of shoe last components are stored together.

Further, the limiting mechanism includes a limiting guide groove and a slider that is slidably matched with the limiting guide groove. The limiting guide groove is provided on the mating surface of one of the sole part and the heel part. The sole part and the heel part are A second mounting hole is provided on the mating surface of another component in the heel portion. The slider is movably arranged in the second mounting hole. The second mounting hole at least has a depth that allows the slider to be fully inserted into it. The second mounting hole The hole is provided with an elastic component that drives the slider to move outward.

Using the above solution, the slide block can be pushed to be completely inserted into the second installation hole during installation. When the slide block moves to a position corresponding to the limit guide groove, it is driven by the elastic member and inserted into the limit guide groove, and connects with the limit guide groove. The position guide groove forms a movable fit, and the limit guide groove can limit the range of movement of the slider.

Further, the sole part and the heel part are provided with positioning protrusions/positioning grooves for positioning in cooperation with the sole mold.

Using the above solution, the positioning protrusions/positioning grooves are used for positioning cooperation between the shoe last and the sole mold (such as a half insert), which can ensure the accurate combination between the shoe last and the sole mold and prevent the shaking of the sole mold. This can improve the accuracy of shoemaking.

Description of drawings

Figure 1 is a schematic diagram of the prior art;

Figure 2 is a structural diagram of an embodiment of the present invention;

Figure 3 is an exploded view 1 of the embodiment of the present invention;

Figure 4 is an exploded view 2 of the embodiment of the present invention;

Figure 5 is a schematic assembly diagram of the sole of the foot and the first support base according to the embodiment of the present invention;

Figure 6 is a schematic assembly diagram of the heel part and the second support seat according to the embodiment of the present invention;

Figure 7 is a schematic diagram of the embodiment of the present invention when the shoe upper is pushed out;

Figure 8 is a schematic cross-sectional view of the self-locking mechanism according to the embodiment of the present invention;

Figure 9 is a schematic cross-sectional view of the limiting mechanism according to the embodiment of the present invention.

Detailed ways

The embodiment of the shoe last assembly of the present invention is shown in Figures 2-9: it includes a shoe last and a support seat that is matched with the shoe last. The shoe last includes a sole part 11 and a heel part 12. The sole part 11 and the heel part 12 correspond to each other. Each side includes a wear-resistant part (110, 120) made of wear-resistant material. The wear-resistant part (110, 120) is fastened with screws on the main body of the sole part 11 and the heel part 12, wherein the sole part 11 The wear-resistant part 110 includes a T-shaped guide rail 111, and the wear-resistant part 120 of the heel part 12 includes a guide groove 121. The cooperation between the guide rail 111 and the guide groove 121 forms an overall longitudinal gap between the sole part 11 and the heel part 12. The sliding connection allows the heel part 12 to move up and down relative to the sole part 11. The provision of the wear-resistant parts (110, 120) can reduce the wear when the two slide relative to each other and improve the service life of the shoe last. The support base includes The first support seat 21 fixed at the lower end of the sole of the foot 11 and the second support seat 22 fixed at the lower end of the heel portion 12 are spaced between the sole of the foot 21 and the first support seat 21 and between the heel portion 12 and the second support seat 22 Constitute a transverse plug-in positioning fit. The transverse plug-in positioning fit refers to: among the two parts that are matched and connected, one of the parts has a sliding installation groove 24 including a transverse insertion opening 23, and the other part is correspondingly provided with a sliding installation groove 24 that can be connected along the The insertion opening 23 is transversely inserted into the sliding installation block 13 installed in the sliding installation groove 24. When the sliding installation block 13 is inserted into the sliding installation groove 24, it forms a longitudinal limiting fit with it.

In this embodiment, the sliding installation groove 24 is provided on the first support base 21 and the second support base 22 , and the sliding installation block 13 is provided on the sole part 11 and the heel part 12 . In other embodiments, the positions of the sliding mounting groove 24 and the sliding mounting block 13 can also be exchanged.

The connection method of transverse plug-in and positioning fit can provide relatively reliable connection performance in the longitudinal direction. Especially when the heel portion 12 frequently moves up and down, it can ensure that the space between the heel portion 12 and the second support seat 22, the sole of the foot 11 and There will be no longitudinal shaking between the first support bases 21, providing a more reliable connection effect, and there is no need to manually debug the connection repeatedly, which improves the accuracy and efficiency of shoemaking.

Since the problem of shaking and displacement is more likely to occur between the heel part 12 and the second support base 22 than between the sole part 11 and the first support base 21 , in other embodiments, only the heel part 12 and the first support base 22 may be disposed. The second support bases 22 form a transverse plug-in positioning fit.

In this embodiment, the sliding installation groove 24 includes two spaced apart guide side walls 241. A space for inserting the sliding installation block 13 is formed between the two guide side walls 241. The two guide side walls 241 are spaced apart. The upper ends of the side walls 241 each have guide ribs 242 that are integrally arranged toward the middle direction of the two sides. The sliding mounting block 13 is provided with guides on both sides that cooperate with the guide ribs 242 for transverse guide insertion and at the same time form longitudinal limiting fits. slot 131.

The cooperation between the guide groove 131 and the guide rib 242 can improve the transverse guide insertion effect on the one hand, and provide the longitudinal limiting effect on the other hand. The structure is simple, convenient for production and processing, and the reliability of the connection can be improved.

In other embodiments, the positions of the guide ribs 242 and the guide grooves 131 can also be exchanged.

Between the two components of the above-mentioned lateral plug-in positioning cooperation, that is, between the sliding installation block 13 and the sliding installation groove 24, an interference plugging method can be used to limit the lateral relative movement between the two, improve the reliability of the connection, and prevent The sliding installation block 13 and the sliding installation groove 24 are displaced from each other or even separated, thereby improving the accuracy of shoemaking.

In this embodiment, in order to more effectively improve the reliability of positioning between the sliding mounting block 13 and the sliding mounting groove 24 , a space for restricting the sliding mounting block 13 is passed between the sliding mounting block 13 and the sliding mounting groove 24 . and the sliding mounting groove 24. The limiting member includes a first limiting member 41 and a second limiting member 42. The first limiting member 41 is disposed between the heel portion 12 and the second limiting member 42. Between the two support seats 22, specifically, the first limiting member 41 is laterally inserted into the corresponding hole of the sliding mounting block 13 of the heel portion 12 along the hole of one of the guide side walls 241 of the second support seat 22, which can prevent Lateral relative movement occurs between the heel portion 12 and the second support seat 22, thereby reducing shaking and preventing the sliding installation block 13 from protruding from the sliding installation groove 24. The second limiting member 42 is inserted through the sole of the foot 11 and the first support seat 21. Specifically, the second limiting member 42 is inserted upward along the hole at the bottom of the first support seat 21 into the corresponding hole of the sliding installation block 13 of the sole of the foot 11, which can also prevent the sole of the foot from being Lateral relative movement occurs between 11 and the first support base 21, which reduces shaking and prevents the sliding installation block 13 from protruding from the sliding installation groove 24. The second limiting member 42 preferably adopts a tubular structure, and the inner hole 211 located at the lower part of the first support base 21 can be used to position and install the first support base 21 in conjunction with a shoemaking workbench, such as the tooling of a shoemaking workbench. When the clamp cooperates with the positioning grooves 25 on both sides of the first support base 21 for clamping and positioning, the positioning pin inserted into the inner hole of the second limiting member 42 can limit its lateral movement, thereby further improving the first support. The clamping and positioning effect of the seat 21. In addition, positioning grooves 25 are also provided on both sides of the second support base 21, which can cooperate with the driving mechanism to achieve connection, so that the driving mechanism can drive the second support base 21 to move up and down. In order to facilitate the shoe last assembly to be grasped by the robotic arm and transferred between different shoemaking stations, positioning recessed holes 212 are also provided on both sides of the first support base 21, and the positioning recessed hole 212 is used for connecting with the robotic arm. The fixture fits the positioning.

In this embodiment, the first limiting member 41 and the second limiting member 42 can be installed by interference insertion or threaded insertion.

A self-locking mechanism is provided on the corresponding mating surfaces of the first support seat 21 and the second support seat 22/the sole part 11 and the heel part 12, and the self-locking mechanism can move the heel part 12 until it merges with the sole part 11 In this state, the relative positions of the two are automatically locked. The combined state means that the heel and sole of the foot are combined into a complete shoe last shape.

The setting of the self-locking mechanism can automatically lock the relative positions of the heel portion 12 and the sole portion 11 when the heel portion 12 moves to the state of joining with the sole portion 11, thereby avoiding relative displacement of the two and ensuring the accuracy of shoemaking. In the prior art, the locking structure is mainly implemented by the cooperation of the limit block A6 and the limit slot A5 (as shown in Figure 1). When the limit block A6 and the heel 12 move downward to the bottom, the driving mechanism also needs to apply transverse force. The driving force is to insert the limit block A6 into the limit groove A5 laterally to achieve locking. However, the driving mechanism itself requires energy consumption. In addition to providing vertical driving force, it also needs to provide lateral driving force. Driving force, which has high requirements on the driving mechanism, and it also takes a certain amount of time to produce the locking action. The solution of this application can reduce the requirements on the driving mechanism, lower the cost, and can also improve the efficiency of shoemaking. .

In this embodiment, the self-locking mechanism includes a pin shaft 32, an elastic member 322 and a pin hole 31. The pin shaft 32 and the pin hole 31 cooperate with each other for insertion and limiting. The elastic member 322 is used to drive the pin shaft 32 to be inserted into the pin hole. In the hole 31, the pin hole 31 is provided on the mating surface of the first support seat 21, and the first mounting hole 221 is provided on the mating surface of the second support seat 22. The pin shaft 32 and the elastic member 322 are both It is provided in the first mounting hole 221. The first support base 21 is provided with an unlocking hole 33 connected with the first mounting hole 221. The unlocking hole 33 is preferably provided at the lower end of the first support base 21. It is not easy to It interferes with the installation and positioning between the first support base 21 and the shoemaking workbench. Of course, in other embodiments, the unlocking hole 33 can also be provided on the side of the first support base 21 .

When the second support seat 22 moves up and down relative to the first support seat 21 , the pin 32 is elastically pressed against the mating surface of the first support seat 21 under the action of the elastic member 322 , and moves along the surface of the first support seat 21 . When the mating surface moves to a position corresponding to the pin hole 31, the elastic force of the elastic member 322 is used to drive the pin 32 to be inserted into the pin hole 31, thereby automatically locking and limiting the second support seat 22 and the first Due to the relative movement of the support base 21, the locking process does not require additional driving force. When it is necessary to unlock, the unlocking pin provided on the shoemaking workbench is inserted upward into the unlocking hole 33, and the lateral component force when the unlocking pin contacts the end of the pin 32 can be used to push the pin 32 from the pin. out of the hole 31, thereby enabling unlocking. In addition, since the second support seat 22 needs to follow the heel portion 12 to move up and down, the first support seat 21 remains relatively stationary. The pin hole 31 is provided on the mating surface of the first support seat 21, which is more conducive to realizing mechanical automatic unlocking. Function.

In other embodiments, the self-locking mechanism may also be provided on the mating surface of the sole part 11 and the heel part 12 .

In order to increase the movement stroke of the second support base 22 relative to the first support base 21, that is, to increase the up and down movement range of the heel portion 12, and to make the structure of the support base more compact, the mating surface a of the first support base 21 and the sole of the foot are The mating surface b of the portion 11 is smoothly over-connected, preferably on the same plane, and the pin 32 can be driven to slide along the mating surface of the first support base 21 and the mating surface of the sole portion 11 .

The first mounting hole 221 penetrates the second support seat 22, and a step portion is used to form a limiting fit between the front end of the first mounting hole 221 and the pin 32 to prevent the pin 32 from moving forward from the front end of the first mounting hole 221. come out, the rear end of the first mounting hole 221 is screwed with a plug 323, and the plug 323 is provided with a hexagonal hole to facilitate the use of a hexagonal wrench tool to rotate it. The elastic member 322 is set against The spring between pin 32 and plug 323.

The above structural design not only has a simple structure, but also facilitates the installation of pins, springs, plugs and other components; in addition, the positioning position of the plug 323 can be adjusted by using the screwed matching structure of the plug 323 and the first mounting hole 221. It is possible to adjust the preload force exerted by the elastic member on the pin 32 .

A limiting mechanism is provided on the corresponding mating surfaces of the first support seat 21 and the second support seat 22 / the sole part 11 and the heel part 12. The limit mechanism can limit the first support seat 21 and the second support seat 22 / The relative movement ranges of the sole part 11 and the heel part 12 are restricted.

The setting of the limiting mechanism can prevent the separation between the first support base 21 and the second support base 22/the heel portion 12 and the sole portion 11, especially to prevent the heel portion 12 from being lost when there are many different sizes in the shoe factory. It can also prevent size matching errors between the heel part and the sole part of the shoe last part (ie, the heel part 12 or the sole part 11) and the problem of mutual collision when a large number of shoe last parts are stored together.

Specifically, as shown in Figure 9, the limiting mechanism includes a limiting guide groove 51 and a slider 52 that slides with the limiting guide groove 51. The limiting guide groove 51 is provided on the mating surface of the heel portion 12. , a second mounting hole 112 is provided on the mating surface of the sole of the foot 11, and the slider 52 is movable and retractable in the second mounting hole 112. The second mounting hole 112 at least has a depth that allows the slider 52 to be fully inserted into it. The second mounting hole 112 is provided with an elastic member that drives the slider 52 to move outward, and the elastic member is a spring 53 . Since the mating surface of the sole part 11 has a T-shaped guide rail 111, arranging the second mounting hole 112, the slider 52 and the spring 53 on the mating surface of the sole part 11 can make the overall structure of the shoe last more compact. In other embodiments, the positions of the limiting guide groove 51 and the sliding block 52 can also be exchanged.

Using the above solution, the slider 52 can be pushed to be completely inserted into the second installation hole 112 during installation. When the slider 52 moves to a position corresponding to the limiter guide groove 51, it is driven by the elastic member and inserted into the limiter guide groove 51. , and forms a movable cooperation with the limiting guide groove 51 , and the limiting guide groove 51 can limit the movable range of the slider 52 . This can achieve the effect of preventing separation between the first support base 21 and the second support base 22/the heel portion 12 and the sole portion 11.

In addition, in this embodiment, the lower end of the sole part 11 is provided with a positioning groove 113, and the lower end of the heel part 12 is provided with a positioning protrusion 122. The structure of the positioning groove 113 and the positioning protrusion 122 is designed to be used with the sole. The matching positioning of the mold (such as half insert) can ensure the accurate combination between the shoe last and the sole mold, prevent the sole mold from shaking, and thus improve the accuracy of shoemaking. In other embodiments, the sole part 11 and the heel part 12 may both use positioning protrusions 122 or both use positioning grooves 113, and the same effect can be achieved.

The above embodiment is only one of the preferred specific embodiments of the present invention. Common changes and exchanges made by those skilled in the art within the scope of the technical solution of the present invention are included in the protection scope of the present invention.

Claims

A shoe last assembly includes a shoe last and a support seat that is fixed to the shoe last. The shoe last includes a sole part and a heel part. The sole part and the heel part form a sliding connection. The support seat includes a support seat fixed under the sole part. The first support seat at the end and the second support seat fixed at the lower end of the heel part are characterized in that: the heel part and the second support seat form a transverse plug-in positioning fit. The transverse plug-in positioning fit refers to: fit Among the two connected components, one component has a sliding installation groove including a transverse insertion opening, and the other component is correspondingly provided with a sliding installation block that can be laterally inserted and installed into the sliding installation groove along the insertion opening, and the sliding installation When the block is inserted into the sliding installation groove, it forms a longitudinal limited fit with it.
The shoe last assembly according to claim 1, wherein the sole of the foot and the first support base form a transverse insertion and positioning fit.
The shoe last assembly according to claim 1, characterized in that: the sliding installation groove includes two guide side walls arranged at intervals, and a space for inserting the sliding installation block is formed at intervals between the two guide side walls. space, the upper ends of the two guide side walls are provided with guide ribs/guide grooves arranged toward the middle direction of the two guide side walls, and both sides of the sliding installation block are provided with guide ribs/guide grooves that cooperate with the guide ribs/guide grooves and form a transverse guide plug-in connection at the same time. Longitudinal limit matching guide groove/guide rib.
The shoe last assembly according to claim 1, 2 or 3, characterized in that: a limiter for limiting the lateral relative movement between the sliding installation block and the sliding installation groove is passed between the two components that are laterally inserted and positioned. pieces.
The shoe last assembly according to claim 1, characterized in that: a self-locking mechanism is provided on the corresponding mating surfaces of the first support seat and the second support seat/foot part and heel part, and the self-locking mechanism can When the heel moves to the state of joining with the sole of the foot, it automatically locks the relative positions of the two.
The shoe last assembly according to claim 5, characterized in that: the self-locking mechanism includes a pin shaft, an elastic member and a pin hole, the pin shaft and the pin hole cooperate to insert and limit, and the elastic member is used to drive the pin shaft to insert into the pin hole. The pin hole is provided on the mating surface of the first support seat. The mating surface of the second support seat is provided with a first mounting hole. The pin shaft and the elastic member are both provided on the first mounting hole. In the hole, the lower end or side of the first support seat has an unlocking hole connected with the first installation hole.
The shoe last assembly according to claim 6, characterized in that: the mating surface of the first support seat and the mating surface of the sole are smoothly and excessively connected, and the pin can be driven along the mating surface of the first support seat and the mating surface of the sole of the foot. The mating surface of the sole of the foot slides.
The shoe last assembly according to claim 6, characterized in that: the first mounting hole penetrates the second support seat, and the front end of the first mounting hole is limitedly matched with the pin to prevent the pin from coming out of the first mounting hole. The front end protrudes forward, and the rear end of the first mounting hole is screwed with a plug. The elastic member is a spring between the pin and the plug.
The shoe last assembly according to claim 1, characterized in that: a limiting mechanism is provided on the corresponding mating surfaces of the first and second supporting seats/foot sole and heel portion, and the limiting mechanism can adjust the first and second supporting seats. The relative movement range of the first support base and the second support base/foot sole part and heel part is limited.
The shoe last assembly according to claim 9, characterized in that: the limiting mechanism includes a limiting guide groove and a slider slidingly matched with the limiting guide groove, and the limiting guide groove is provided at the sole of the foot and the heel. The mating surface of one of the components, the mating surface of the other component of the sole part and the heel part is provided with a second mounting hole, the slider is movably arranged in the second mounting hole, and the second mounting hole at least has the ability to The second mounting hole is provided with an elastic member that drives the slider to move outward.
The shoe last assembly according to claim 1, characterized in that: the sole part and the heel part are provided with positioning protrusions/positioning grooves for positioning in cooperation with the sole mold.