Shoe tree assembly

Abstract

The utility model discloses a shoe tree component which comprises a shoe tree and a supporting seat, the shoe tree comprises a sole part and a heel part, the sole part and the heel part are connected in a sliding fit mode, the shoe tree component is characterized in that the supporting seat is fixedly connected with the shoe tree, a positioning groove is formed in the supporting seat, a locking part is arranged in the positioning groove, the heel part (4) is connected with a delasting rod in a rotating mode, and the delasting rod is connected with the shoe tree. The top of the delasting rod is provided with a positioning block which is locked with the locking part in a matched mode and enables the heel part (4) and the foot sole part to be in a combined state. After the locking state of the positioning block and the positioning groove is released, the delasting rod pushes the heel part (4) to be separated from the combination state of the sole part. The automatic shoemaking machine has the advantages of stable structure and high shoemaking precision.

Description

Technical Field

[0001] The utility model relates to the field of shoe product processing and manufacturing, and more specifically, to a shoe last assembly. Background Art

[0002] The shoe last is the molding mold of the shoe. The shoe last not only determines the shape and style of the shoe, but also has a crucial impact on whether the shoe size fits the foot. Nowadays, the shoe last also plays a vital role in the automated production process of shoes. The upper injection molding shoemaking process is a common shoemaking process at present. Its process steps are to first make the upper on the shoe last, and then put the shoe last with the upper into the sole injection molding machine as a whole, fix the shoe last with the clamp of the sole injection molding machine, and connect the shoe last and the mold of the sole injection molding machine. By injecting the molten plastic into the mold for solidification, the molded sole and the upper are bonded together. The upper injection molding process is used in the production of leather shoes, cloth shoes, sports shoes, plastic shoes and other footwear.

[0003] In the upper-joint injection molding process, most of the process steps are completed automatically by machines, such as cyclically transporting the carrier carrying the shoe last between various processing stations, and using automated equipment to transfer the shoe last assembly from the carrier to the pneumatic clamp of the sole injection molding machine and cooperate with the mold to complete the injection molding of the sole, realize the combination of the sole and the upper, and then put the shoe last back on the carrier, and finally remove the last, etc. At present, most of the shoe last assemblies on the market cannot accurately position the sole and heel of the shoe last to the initial position after the automated equipment clamps the removed last and reassembles it for the next pair of injection molding, resulting in reduced shoemaking accuracy. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a shoe last assembly, which has the advantages of stable structure and high shoemaking precision.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a shoe last assembly, comprising a shoe last and a support seat, the shoe last comprising a sole portion and a heel portion, the sole portion and the heel portion being slidably matched and connected, the support seat being fixedly connected to the shoe last, the support seat being provided with a positioning groove, a locking portion being provided in the positioning groove, the heel portion (4) being rotatably connected to a last stripping rod, the top of the last stripping rod being provided with a positioning block which is matched and locked with the locking portion so that the heel portion (4) and the sole portion form a combined state; after the positioning block is released from the locked state with the positioning groove, the last stripping rod pushes the heel portion (4) and the sole portion out of the combined state.

[0006] By adopting the above technical solution, when the stripping rod pushes the heel part (4) and the sole part to be separated from the combined state, the automated equipment clamps the shoe last assembly and then reassembles the next pair of injection molding. The stripping rod and the locking part on the support seat are re-coordinated to form a combined state, and the sole part and the heel part of the shoe last can be accurately positioned to the initial position, and the position of the sole part and the heel part will not be affected by shaking and vibration and cause deviation, which can improve the shoemaking accuracy.

[0007] The utility model is further configured as follows: the locking portion is an elastic clip, and the positioning block is provided with a first clip groove which is snap-fitted with the elastic clip to lock the position of the last stripping rod.

[0008] By adopting the above technical solution, the elastic clip can make the last stripping rod and the positioning groove of the support seat disengagement and locking more convenient and quick.

[0009] The utility model is further configured as follows: the elastic clips are symmetrically arranged on both sides of the positioning groove, and the elastic clips are fixed to the support seat by a plurality of screws.

[0010] By adopting the above technical solution, the symmetrically arranged elastic clips make the structure more stable, and the fixing method of screws allows the elastic clips to be more convenient to install and disassemble.

[0011] The utility model is further configured as follows: a positioning channel is connected to the bottom of the positioning groove, and the last stripping rod further includes a rod body which is engaged with the positioning channel in a locked state.

[0012] By adopting the above technical solution, the position of the last stripping rod will not be offset when in the assembled state, making the shoe last assembly more accurate and stable when in the assembled state.

[0013] The utility model is further configured as follows: a positioning portion is provided on the sole portion, the positioning portion is used to abut against one end of the heel portion connected to the last stripping rod, a through groove is provided on the positioning portion, one end of the last stripping rod is rotatably connected to the heel portion, and the other end passes through the through groove of the sole portion and extends to the positioning groove of the support seat.

[0014] By adopting the above technical solution, the positions of the sole and the heel are more accurate when the sole and the heel are in a combined state.

[0015] The utility model is further configured as follows: the support seat is provided with a second clamping groove for clamping by automated equipment, and the positioning block on the last stripping rod is provided with a clamping groove for clamping by automated equipment.

[0016] By adopting the above technical solution, the automated equipment can clamp the shoe last assembly more stably, and the provision of the clamping groove prevents the automated equipment from sliding and detaching when clamping the last removal rod, making the clamping of the last removal rod more stable.

[0017] The utility model is further configured as follows: a weight reduction groove for reducing weight is provided on the support seat.

[0018] By adopting the above technical solution, the weight of the support seat is reduced, and the stability of the automated equipment in clamping the shoe last assembly is further increased.

[0019] The utility model is further configured as follows: a screw sleeve is provided at one end of the shoe last, and threads are provided on the inner and outer circumferences of the screw sleeve. The screw sleeve is screwed onto the shoe last, and a screw is provided in the weight-reducing groove of the support seat. The screw passes through the support seat and the screw sleeve and is screwed to connect the support seat and the shoe last.

[0020] By adopting the above technical solution, the connection between the support seat and the shoe last is more stable and the positioning is more precise.

[0021] The utility model is further configured as follows: a through hole for a screw to pass through is provided at the top of the support seat, and the through hole is communicated with the weight-reducing groove.

[0022] By adopting the above technical solution, the screw is installed through the through hole and the threaded sleeve, making installation more convenient.

[0023] The utility model is further configured as follows: a first mounting groove is provided in the sole portion, a second mounting groove is provided in the heel portion, the first mounting groove and the second mounting groove are communicated, a movable connection component is provided in the sole portion and the heel portion, the movable connection component includes a first positioning shaft, a second positioning shaft and a third positioning shaft, a rotating block and a hooking member, the first positioning shaft and the second positioning shaft are transversely fixedly arranged in the first mounting groove, the third positioning shaft is transversely fixedly arranged in the second mounting groove, the rotating block is installed on the second positioning shaft and the third positioning shaft, one end of the hooking member is in contact with the outer periphery of the first positioning shaft, and the other end is in contact with one end of the rotating block.

[0024] By adopting the above technical solution, when the last stripping rod pushes the heel and the sole to separate from the combined state, the heel rotates along the fitting surface with the sole, and the rotating block rotates in the rotation direction of the heel until the hook locks the rotating block and the heel stops rotating, thereby limiting the rotation of the heel and preventing the heel from being completely separated from the sole. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of a vertical section of the utility model in a combined state;

[0026] Figure 2 It is a structural schematic diagram of a vertical section of the utility model in a disassembled state;

[0027] Figure 3 It is a schematic diagram of the structure of the utility model.

[0028] In the accompanying drawings, 1, shoe last; 2, support seat; 3, sole part; 4, heel part; 5, positioning groove; 6, locking part; 7, last removal rod; 8, positioning block; 9, elastic clip; 10, first clamping groove; 11, positioning channel; 12, rod body; 13, through groove; 14, second clamping groove; 15, clamping groove; 16, weight reduction groove; 17, first installation groove; 18, second installation groove; 19, first positioning axis; 20, second positioning axis; 21, third positioning axis; 22, rotating block; 23, hook and link; 24, positioning part; 25, screw sleeve; 26, screw; 27, through hole; 28, movable connection component; 29, chip. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] As attached Figures 1 to 3 A shoe last assembly shown includes a shoe last 1 and a support seat 2, the shoe last 1 includes a sole portion 3 and a heel portion 4, the sole portion 3 and the heel portion 4 are slidably connected, the support seat 2 is fixedly connected to the shoe last 1, a positioning groove 5 is provided on the support seat 2, a locking portion 6 is provided in the positioning groove 5, the heel portion (4) is rotatably connected to a last stripping rod 7, the top of the last stripping rod 7 is provided with a positioning block 8 that cooperates with the locking portion 6 to lock so that the heel portion (4) and the sole portion 3 form a combined state; after the positioning block 8 is released from the locked state with the positioning groove 5, the last stripping rod 7 pushes the heel portion (4) and the sole portion 3 out of the combined state. The shoe last 1 assembly is clamped by the automated equipment, and then reassembled for the next pair of injection moldings. The last stripping rod 7 and the locking portion 6 on the support seat 2 cooperate to lock and re-form a combined state, and the sole portion 3 and the heel portion 4 of the shoe last 1 are accurately positioned to the initial position, and the position of the sole portion 3 and the heel portion 4 will not be affected by shaking and vibration to cause deviation, which can improve the shoemaking accuracy.

[0031] As attached Figure 1 As shown, the locking portion 6 is an elastic clip 9, and the positioning block 8 is provided with a first clip groove 10 which is snap-fitted with the elastic clip 9 to lock the position of the stripper rod 7. The elastic clips 9 are symmetrically arranged on both sides of the positioning groove 5. The elastic clips 9 are fixed to the support seat 2 by a number of screws. In this embodiment, the elastic clip 9 on one side is fixed to the support seat 2 by two screws. The elastic clip 9 can make the stripper rod 7 and the positioning groove 5 of the support seat 2 more convenient and quick to disengage and lock. The symmetrically arranged elastic clips 9 make the structure more stable, and the screw fixing method can make the elastic clips 9 more convenient to install and disassemble.

[0032] As attached Figure 3 As shown, the bottom of the positioning groove 5 is connected to a positioning channel 11, and the last stripping rod 7 also includes a rod body 12 that is engaged with the positioning channel 11 in a locked state. This ensures that the position of the last stripping rod 7 will not be offset when in the assembled state, making the shoe last 1 assembly more accurate and stable when in the assembled state.

[0033] As attached Figure 3 As shown, a positioning portion 24 is provided on the sole portion 3, and the positioning portion 24 is used to abut against one end of the heel portion 4 connected to the last stripping rod 7. A through groove 13 is provided on the positioning portion 24. One end of the last stripping rod 7 is rotatably connected to the heel portion 4, and the other end passes through the through groove 13 of the sole portion 3 and extends to the positioning groove 5 of the support seat 2, so that when the shoe last 1 assembly is in the assembled state, the positions of the sole portion 3 and the heel portion 4 are more accurate.

[0034] As attached Figure 3 As shown, the support seat 2 is provided with a second clamping groove 14 for clamping by the automated equipment, and the positioning block 8 on the last stripping rod 7 is provided with a clamping groove 15 for clamping by the automated equipment. The second clamping groove 14 allows the automated equipment to clamp the shoe last 1 assembly more stably, and the clamping groove 15 prevents the automated equipment from sliding and disengaging when clamping the last stripping rod 7, and the clamping of the last stripping rod 7 is more stable.

[0035] As attached Figure 1 As shown, the support seat 2 is provided with a weight-reducing groove 16 for reducing weight, which reduces the weight of the support seat 2 and further increases the stability of the shoe last 1 assembly clamped by the automated equipment. A screw sleeve 25 is provided at one end of the shoe last 1, and the inner and outer peripheries of the screw sleeve 25 are provided with threads. The screw sleeve 25 is screwed on the shoe last 1, and a screw 26 is provided in the weight-reducing groove 16 of the support seat 2. The screw 26 passes through the support seat 2 and the screw sleeve 25 and is screwed to connect the support seat 2 and the shoe last 1. In this embodiment, since the shoe last is made of plastic, a screw sleeve 25 is directly provided. The thread will wear out and fail. In this embodiment, the screw sleeve 25 is directly tightened into the shoe last 1, and the screw 26 is installed in the screw sleeve 25, so that the connection between the shoe last 1 and the support seat 2 is more stable and reliable. The top of the support seat 2 is provided with a through hole 27 for the screw 26 to pass through. The through hole 27 is connected to the weight reduction groove 16. The number of through holes in this embodiment is two, which makes it easier to disassemble and assemble the screw 26. The through hole can also be used as a positioning hole when the mechanical automation equipment is running, so that the shoe last assembly has a more precise positioning when in use.

[0036] As attached Figure 1 and 2As shown, the sole portion 3 is provided with a first mounting groove 17, the heel portion 4 is provided with a second mounting groove 18, the first mounting groove 17 and the second mounting groove 18 are communicated, the sole portion 3 and the heel portion 4 are provided with a movable connection component 28, the movable connection component 28 includes a first positioning shaft 19, a second positioning shaft 20 and a third positioning shaft 21, a rotating block 22 and a hooking member 23, the first positioning shaft 19 and the second positioning shaft 20 are transversely fixedly arranged in the first mounting groove 17, the third positioning shaft 21 is transversely fixedly arranged in the second mounting groove 18, the rotating block 22 is installed on the second positioning shaft 20 and the third positioning shaft 21, one end of the hooking member 23 is in contact with the outer periphery of the first positioning shaft, and the other end is in contact with the outer periphery of the first positioning shaft. When one end of the rotating block 22 is fitted together and the last stripping rod 7 pushes the heel 4 and the sole 3 to separate from the combined state, in this embodiment, the fitting surface of the heel 4 and the sole 3 is an arc surface, and the heel 4 rotates along the fitting surface with the sole 3, and the rotating block 22 rotates in the rotation direction of the heel 4 until the hook 23 locks the rotating block 22, and the heel 4 stops rotating, thereby limiting the rotation of the heel 4 and preventing the heel 4 from being completely separated from the sole 3. In this embodiment, the hook 23 is made of elastic material. When the sole 3 and the heel 4 are in a shape combination state, the pre-tightening force of the hook 23 acts on the first positioning shaft 19 and the rotating block 22 respectively. With this arrangement, the hook 23 can always fit the sole 3 and the heel 4 tightly.

[0037] As attached Figure 1 and attached Figure 2 As shown, in this embodiment, a chip 29 is provided at the front end of the support seat, which is used for mechanical automation equipment to identify the classification of the shoe last 1 to prevent errors in the use of the shoe last 1.

Claims

1. A shoe last assembly, comprising a shoe last (1) and a support seat (2), wherein the shoe last (1) comprises a sole portion (3) and a heel portion (4), wherein the sole portion (3) and the heel portion (4) are connected in a sliding manner. Its characteristics are: The support seat (2) is mounted on the shoe last (1); a positioning groove (5) is provided on the support seat (2); a locking portion (6) is provided in the positioning groove (5); the heel portion (4) is rotatably connected to a last stripping rod (7); a positioning block (8) is provided at the top of the last stripping rod (7) and is locked with the locking portion (6) so that the heel portion (4) and the sole portion (3) are in a combined state; after the positioning block (8) is released from the locked state with the positioning groove (5), the last stripping rod (7) pushes the heel portion (4) and the sole portion (3) out of the combined state.

2. A shoe last assembly according to claim 1, Its characteristics are: The locking portion (6) is an elastic clip (9), and the positioning block (8) is provided with a first clip groove (10) which is snap-fitted with the elastic clip (9) to lock the position of the last stripping rod (7).

3. A shoe last assembly according to claim 2, Its characteristics are: The elastic clips (9) are symmetrically arranged on both sides of the positioning groove (5), and the elastic clips (9) are fixed to the support seat (2) by a plurality of screws.

4. A shoe last assembly according to claim 1, Its characteristics are: The bottom of the positioning groove (5) is connected to a positioning channel (11), and the last stripping rod (7) further comprises a rod body (12) which is engaged with the positioning channel (11) in a locked state.

5. The shoe last assembly according to claim 1, Its characteristics are The sole portion (3) is provided with a positioning portion (24) for tightening one end of the heel portion (4) connected to the last stripping rod (7); the positioning portion (24) is provided with a through slot (13); one end of the last stripping rod (7) is rotatably connected to the heel portion (4), and the other end passes through the through slot (13) of the sole portion (3) and extends to the positioning slot (5) of the support seat (2).

6. The shoe last assembly according to claim 1, Its characteristics are: The support seat (2) is provided with a second clamping groove (14) for clamping by automated equipment, and the positioning block (8) on the last stripping rod (7) is provided with a clamping groove (15) for clamping by automated equipment.

7. The shoe last assembly according to claim 1, Its characteristics are: The support seat is provided with a weight-reducing groove (16) for reducing weight.

8. A shoe last assembly according to claim 7, Its characteristics are: A screw sleeve (25) is provided at one end of the shoe last (1), and threads are provided on the inner and outer circumferences of the screw sleeve (25). The screw sleeve (25) is screwed onto the shoe last (1), and a screw (26) is provided in the weight-reducing groove of the support seat (2). The screw (26) passes through the support seat (2) and the screw sleeve (25) and is screwed to connect the support seat (2) and the shoe last (1).

9. The shoe last assembly according to claim 7, Its characteristics are: A through hole (27) for a screw (26) to pass through is provided at the top end of the support seat, and the through hole (27) is communicated with the weight-reducing groove (16).

10. The shoe last assembly according to claim 1, Its characteristics are: The sole part (3) is provided with a first mounting groove (17), the heel part (4) is provided with a second mounting groove (18), the first mounting groove (17) and the second mounting groove (18) are communicated, the sole part (3) and the heel part (4) are provided with a movable connection component (28), the movable connection component (28) comprises a first positioning shaft (19), a second positioning shaft (20) and a third positioning shaft (21), a rotating block (22) and a hooking member (23), the first positioning shaft (19) and the second positioning shaft (20) are transversely fixedly arranged in the first mounting groove (17), the third positioning shaft (21) is transversely fixedly arranged in the second mounting groove (18), the rotating block (22) is installed on the second positioning shaft (20) and the third positioning shaft (21), one end of the hooking member (23) is in contact with the outer periphery of the first positioning shaft, and the other end is in contact with one end of the rotating block (22).

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