WO2023010627A1 - Two-section composite shoe last and preparation method therefor - Google Patents
Two-section composite shoe last and preparation method therefor Download PDFInfo
- Publication number
- WO2023010627A1 WO2023010627A1 PCT/CN2021/114910 CN2021114910W WO2023010627A1 WO 2023010627 A1 WO2023010627 A1 WO 2023010627A1 CN 2021114910 W CN2021114910 W CN 2021114910W WO 2023010627 A1 WO2023010627 A1 WO 2023010627A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- last
- core
- aluminum
- last core
- separator
- Prior art date
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 44
- 238000002360 preparation method Methods 0.000 title abstract description 7
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 63
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 63
- 239000004033 plastic Substances 0.000 claims abstract description 39
- 238000001746 injection moulding Methods 0.000 claims abstract description 20
- 238000001816 cooling Methods 0.000 claims abstract description 10
- 238000007493 shaping process Methods 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 10
- 239000004809 Teflon Substances 0.000 claims description 6
- 229920006362 Teflon® Polymers 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 125000006850 spacer group Chemical group 0.000 claims description 6
- 229910000838 Al alloy Inorganic materials 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 238000004512 die casting Methods 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000005192 partition Methods 0.000 abstract description 3
- 238000005520 cutting process Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 6
- 238000000926 separation method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 210000002683 foot Anatomy 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 210000004744 fore-foot Anatomy 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 210000001161 mammalian embryo Anatomy 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43D—MACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
- A43D3/00—Lasts
- A43D3/02—Lasts for making or repairing shoes
- A43D3/027—Lasts with exchangeable parts, e.g. for changing the form or for remodelling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
- B29C69/001—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore a shaping technique combined with cutting, e.g. in parts or slices combined with rearranging and joining the cut parts
Definitions
- the invention relates to the technical field of shoemaking, in particular to a two-section composite shoe last and a preparation method thereof.
- Shoe last is the matrix of shoes and the forming mold of shoes.
- the shoe last not only determines the shape and style of the shoe, but also determines whether the shoe fits and protects the foot.
- the production of shoe lasts is made by mechanical processing, and the strength is stable and can be reused.
- a specific shoe last is specified for a shoe size and shoe shape. The higher the accuracy and shape requirements of the last, the higher the processing accuracy and difficulty, the higher the cost, but the trend of people's aesthetics changes rapidly, and the replacement of shoe lasts is also very fast, which has resulted in the replacement of a large number of shoe lasts, cost Increase.
- shoe lasts is generally divided into forefoot and heel by cutting. During the division, the cutting surface will be uneven and the size will change, and only shoes with fixed styles and sizes can be produced. Once the shoe last is cut After that, secondary processing can no longer be performed to change the size and style.
- a two-section composite shoe last is provided, which can effectively save the processing cost of the shoe last blank and improve the integrity of the shape and size of the shoe last.
- a two-part composite shoe last comprising an aluminum last core, a plastic last shell and a connecting assembly
- the aluminum last core includes a first last core and a second last core, the first last core and the second last core Connected through the connection assembly;
- the plastic last core wraps the first last core and the second last core, and a separator is provided at the connection between the first last core and the second last core;
- a separator protrudes from the junction and divides the plastic last shell into two parts.
- the outer surface of the separator is coated with a non-stick layer.
- the two-section composite shoe last further includes a clamping piece and a fastener; the clamping piece is provided with a first shaft hole, and the aluminum last core is provided with a first screw hole; the The fastener passes through the first shaft hole and the first screw hole in sequence; the fastener installs the clamping member on the upper end surface of the aluminum last core.
- the clamping member is provided with a second shaft hole.
- the clamping member is provided with a dovetail groove.
- the aluminum last core is an open-cap last
- the connecting assembly includes a pin
- the first core last is arranged at the instep of the second core through the pin.
- the second core has the first screw hole, and the fastener connects the clamping piece with the second core.
- the aluminum last core is a spring last
- the connection assembly includes an elastic member, the elastic member is bent into a hook shape, one end of the elastic member is connected to the first last core, and the The other end of the elastic member is connected with the second last core.
- connection between the first core and the second core is provided with a V-shaped groove, and the clamping part is provided with a snap-in block matching the V-shaped groove; the first core has the the first screw hole.
- the fastener connects the clamping piece with the first core.
- the spacer includes a first spacer and a second spacer, the upper part of the first spacer is arranged between the first core and the clamping piece, the The lower part of the first separator is arranged between the first core and the second core; the second separator is arranged between the second core and the clamping piece.
- the aluminum last core is a spring last
- the connecting assembly includes an elastic member, a connecting piece and a pin, and the two ends of the connecting piece are connected to the first core and the second through the pin.
- the last core is connected; the elastic piece is bent into a hook shape, one end of the elastic piece hooks the connecting piece, and the other end of the elastic piece is connected to the second last core through a pin.
- the second last core is provided with a second screw hole
- the first last core is provided with a third screw hole; the fastener passes through the first shaft hole, the second screw hole and the third screw hole in turn, so that The fastener locks the clip, the first last core and the second last core.
- a method for preparing the above-mentioned two-section composite shoe last is also provided, which is simple to operate and lower in cost.
- a method for preparing a two-section composite shoe last comprising the following steps: preparing a last core: heating aluminum or an aluminum alloy to form molten aluminum, pouring the molten aluminum into the inner core mold of a die-casting machine, and cooling the molten aluminum After the mold is solidified, the mold is released to obtain the first core and the second core; assembly: the separator is sandwiched between the first core and the second core, and the first core and the second core are connected through the connecting component Assemble the aluminum last core; injection molding: add the plastic material to the injection molding machine for heating and dissolving, put the aluminum last core into the mold of the injection molding machine for injection molding; cooling and setting: cool the injection molded mold so that the plastic in the mold Shaping, the shaped shoe last is demolded and then cooled twice to obtain the rough shoe last; finishing: Assemble the clamping part and the rough shoe last, and install the rough shoe last on the engraved last through the clamping part On the machine, the plastic on the outer surface of the rough shoe last is cut
- the separator before assembly, the separator is treated with non-adhesive glue, and the outer surface of the separator is coated with Teflon.
- the two-section composite shoe last of this application is designed as a composite structure with two layers of inner and outer layers.
- the aluminum last core is not easy to damage and can be used repeatedly; and the plastic last shell can be processed into shoes of different sizes.
- the aluminum last core can also be detached by hot melting, which has low utilization cost and simple steps, effectively saving the processing cost of the shoe last blank; in addition, there are separators on the first last core and the second last core, which are convenient for subsequent processing.
- the plastic last shell is separated, and its cross-section can be separated by a separator. The cut surface is complete, which improves the integrity of the shape and size of the shoe last, and makes the manufactured shoes more comfortable and fit the shape of the foot.
- the preparation method of the two-part composite shoe last of the present application has uncomplicated procedures, simple operation and low cost.
- Fig. 1 is a three-dimensional schematic diagram of a two-section composite shoe last of the first embodiment.
- Fig. 2 is an exploded schematic diagram of the two-section composite shoe last in Fig. 1 .
- Fig. 3 is an exploded schematic view from another angle of the two-section composite shoe last in Fig. 2 .
- Fig. 4 is a schematic cross-sectional view of the two-section composite shoe last in Fig. 1 cut along the movable assembly.
- Fig. 5 is a schematic cross-sectional view of the two-section composite shoe last in Fig. 1 cut along the center of the second shaft hole.
- Fig. 6 is a schematic cross-sectional view of the two-section composite shoe last cut along the center of the second shaft hole of the second embodiment.
- Fig. 7 is an exploded schematic view of the two-section composite shoe last of the second embodiment.
- Fig. 8 is a three-dimensional schematic diagram of a two-section composite shoe last of the third embodiment.
- FIG. 1 to FIG. 5 are the two-section composite shoe last according to the first embodiment of the present invention, which is a conventional two-section spring last.
- the shoe last is designed as a composite structure with two layers of inner and outer layers.
- the aluminum last core is not easy to damage and can be used repeatedly; while the plastic last shell can be processed into shoe lasts of different sizes, and can also be processed by heating
- the aluminum last core is detached by melting, which has low cost and simple steps, which effectively saves the processing cost of the shoe last blank; in addition, there are separators on the first last core and the second last core, which are convenient for the plastic in the subsequent cutting process.
- the last shell is separated, and its cross-section can be separated by a separator.
- the cut surface is complete, which improves the integrity of the shape and size of the shoe last, and makes the manufactured shoes more comfortable and fit the shape of the foot.
- the two-section composite shoe last 100 of the first embodiment of the present invention includes an aluminum last core 10, a plastic last shell 20, a connecting assembly 50, a clamping member 30 and a fastening 40;
- the aluminum last core 10 includes a first last core 11 and a second last core 12; the first last core 11 and the second last core 12 are connected by a connecting assembly 50;
- the aluminum last core 10 has an upper end surface, and the plastic last core 20 passes through
- the injection molding method wraps the area of the aluminum last core 10 except the upper end surface.
- the aluminum last core 10 is put into the injection molding machine and fixed with the injection mold, and the plastic last shell 20 wraps the aluminum last core 10 through injection molding;
- a separator 60 is provided at the joint of the first last core 11 and the second last core 12 , and the separator 60 protrudes from the joint and divides the plastic last shell 20 into two parts.
- the outer surface of the separator 60 is coated with a non-stick layer (not shown in the figure), which facilitates the separation of the plastic last shell 20 and the separator. Separation between 60 sheets.
- the non-stick layer is a Teflon layer.
- the number of separators 60 is one, of course, multiple separators 60 can be overlapped and clamped between the first core 11 and the second core 12 .
- the two separator sheets 60 closest to the first core 11 and the second core 12 may be coated with a non-stick layer. More than two separators 60, the two separators 60 closest to the first core 11 and the second core 12 may not be coated with a non-stick layer, and the first core 11 and the second core 12 are directly glued. Next, the rest of the separators 60 are all coated with a non-stick layer.
- the rear part of the first last core 11 and the front part of the second last core 12 have cross-sections that coincide with each other, and the cross-sections are stepped; Between the cross-sections of the core 12, the separator 60 matches the cross-sections, forming a stepped structure. The position is limited by the step-shaped section.
- the separator 60 can be better clamped between the first core 11 and the second core 12, and both the first core 11 and the second core 12 It forms a snap-fit clamping relationship, which is not easy to fall off or shift; on the other hand, it can effectively prevent the first last core 11 and the second last core 12 from being misaligned up and down, and can match the first last core 11 and the second last core 12 for quick assembly Positioning improves the efficiency of shoemaking.
- the first last core 11 is provided with a first positioning hole 110
- the second last core 12 is also provided with a second positioning hole 120 .
- the number of the first positioning hole 110 and the second positioning hole 120 is at least one, the first last core 11 has one first positioning hole 110 , and the second last core 12 has one second positioning hole 120 .
- the shape and distribution of the first positioning holes 110 and the second positioning holes 120 are random.
- connection assembly 50 includes an elastic member 51, a connecting piece 52 and a pin 53; a first groove 111 is provided inside the first core 11, and a second groove is also provided inside the second core 12. 121; the separator 60 is provided with a perforation 61 matching the elastic piece 51 and the connecting piece 52; the two ends of the elastic piece 51 and the connecting piece 52 respectively pass through the perforation 61 and extend into the first groove 111 and the second groove 121, Both ends of the elastic member 51 and the connecting piece 52 are respectively connected with the first last core 11 and the second last core 12 through bolts 53 .
- the first groove 111 and the second groove 121 form a chamber (not marked), and the elastic member 51 and the connecting piece 52 move in the chamber; the elastic member 51 is bent into a hook shape, and one end of the elastic member 51 hooks the connecting piece 52 One end of the elastic member 51 is connected to the second last core 12 through a pin 53; the connecting piece 52 supports the relative sliding and closing of the first last core 11 and the second last core 12, and the elastic member 51 provides damping for sliding and closing.
- the section of the first last core 11 is provided with a first installation groove 112
- the section of the second last core 12 is also provided with a second installation groove 122
- the two sides of the separator 60 are respectively installed in the first installation groove. 112 and the second installation groove 122
- the separator 60 is connected with the first last core 11 and the second last core 12 by bolts.
- the cross section of the second last core 12 is provided with engaging grooves 13 that match the bolts.
- the first mounting groove 112 can also be provided only on the first core 11, or the second mounting groove 122 can only be provided on the second core 12; Both the first last core 11 and the second last core 12 are provided.
- the clamping member 30 is provided with a first shaft hole 32, and the first shaft hole 32 is inclined; the clamping member 30 is provided with a second shaft hole 33 on both sides of the first shaft hole 32, and the two second The shaft holes 33 are arranged vertically and parallelly; the second last core 12 is provided with a second screw hole 14 matching the first shaft hole 32 , and the first last core 11 is provided with a third screw hole 15 matching the second screw hole 14
- the fastener 40 passes through the first shaft hole 32, the second screw hole 14 and the third screw hole 15 in turn; the fastener 40 locks the clamping part 30, the first last core 11 and the second last core 12 tight.
- the clamping part 30 does not need to be divided into two parts because the shoe last is a two-section structure. It only needs to be provided with the second screw hole 14 and the third screw hole 15 connected to the first last core 11 and the second last core 12.
- the fastener 40 sequentially passes through the first shaft hole 32 , the second screw hole 14 and the third screw hole 15 to lock the clip 30 , the first last core 11 and the second last core 12 .
- This connection mode not only saves the manufacturing cost of the clamping member 30, but also facilitates the installation.
- the machine equipment is connected with the clamping member 30 through the second shaft hole 33; thereby realizing the fixation of the shoe last, this indirect clamping method can reduce the damage to the shoe last during the moving or clamping process.
- the fastener 40 is a bolt, and the fastener 40 is screwed to the aluminum last core 10 after passing through the clamping member 30 .
- the preparation method of the two-section composite shoe last in this embodiment includes six steps of preparing the last core, non-sticking treatment, assembly, injection molding, cooling and shaping, and finishing.
- the steps of preparing the last core are as follows: heating aluminum or aluminum alloy to 650-700 degrees to melt the aluminum liquid, then pouring the aluminum liquid into the inner core mold of the die-casting machine, and cooling the aluminum liquid After the mold is solidified for 60 seconds, the mold is released to obtain the first last core and the second last core.
- the step of non-adhesive treatment is: coating the outer surface of the separator with Teflon.
- the assembling step is as follows: clamp the separator between the first last core and the second last core, and assemble the first last core and the second last core through a connecting component to obtain an aluminum last core.
- the steps of injection molding are as follows: first, start the injection molding machine to preheat, add the plastic material PE into the injection molding machine and heat and dissolve for 2 hours; put the aluminum last core into the mold of the injection molding machine, when the temperature of the die head Reach 180-200 degrees, then carry out injection molding wrapping.
- the step of cooling and shaping is as follows: cooling the injection-molded mold with cold water for 2 minutes, so that the plastic in the mold is shaped, and after the shaped shoe last is demoulded, put it into cold water or warm water for secondary cooling. Obtain the shoe last rough embryo.
- the steps of finishing are: assembling the clamping piece with the rough shoe last, installing the rough shoe last on the last engraving machine through the clamping piece, and finishing the plastic on the outer surface of the rough shoe last. After cutting and finishing, the rough shoe last after cutting is exposed to the separator, and a two-section composite shoe last can be obtained.
- FIG. 6 and FIG. 7 is a two-section composite shoe last 100a according to the second embodiment of the present invention.
- the shoe last 100a is a V-shaped two-section spring last.
- the shoe last 100a includes an aluminum last core (not marked), a plastic last shell 20a, a connecting component (not marked), a clamping piece 30a and a fastener 40a;
- the aluminum last core includes a first last core 11a and a second last core 12a, The first last core 11a and the second last core 12a are connected by connecting components;
- the aluminum last core has an upper end surface, and the plastic last shell 20a wraps the area of the aluminum last core except the upper end surface by injection molding; the clamping part 30a is passed through a fastener 40a is detachably installed on the upper end surface of the aluminum last core.
- a separator 60a is provided at the connection between the first last core 11a and the second last core 12a, and the separator 60a protrudes from the connection and divides the plastic last shell 20a into two parts.
- the separator 60 a includes a first separator 62 and a first separator 63 .
- the upper part of the first separator 62 is arranged between the first last core 11a and the clamping member 30a, and the lower part of the first separator 62 is arranged between the first last core 11a and the second last core 12a; the first partition The sheet 63 is arranged between the second core 12a and the clamp 30a.
- the outer surfaces of the first separator 62 and the first separator 63 are coated with a non-stick layer (not shown).
- the first last core 11a is provided with a first positioning hole 110a
- the second last core 12a is also provided with a second positioning hole 120a.
- the number of the first positioning hole 110a and the second positioning hole 120a is at least one, the first last core 11a has one first positioning hole 110a, and the second last core 12a has one second positioning hole 120a.
- the shape and distribution of the first positioning holes 110a and the second positioning holes 120a are random.
- connection assembly includes an elastic member 51a; a first groove 111a is provided inside the first last core 11a, and a second groove (not shown) is also provided inside the second last core 12a; the first The separator 62 is provided with a perforation 61a matching the elastic member 51a; two ends of the elastic member 51a pass through the perforation 61a and extend into the first groove 111a and the second groove respectively.
- the clip 30a is provided with a first shaft hole 32a, and the first shaft hole 32a is arranged obliquely; the clip 30a is provided with a second shaft hole 33a on both sides of the first shaft hole 32a, and the two second shaft holes
- the shaft holes 33a are arranged vertically and parallelly;
- the first last core 11a is provided with a first screw hole 16 matching the second shaft hole 32a;
- the fastener 40a passes through the first shaft hole 32a and the first screw hole 16 in sequence, The piece 40a locks the clamping piece 30a and the first last core 11a.
- connection between the first last core 11a and the second last core 12a is provided with a V-shaped groove
- the clip 30a is provided with a clamping block 34 matching the V-shaped groove
- the clamping block 34 is inserted into the V-shaped groove
- the second A shaft hole 32a extends obliquely from the top of the clamping member 30a toward the front of the engaging block 34 .
- the scheme for preparing the two-section composite shoe last of this embodiment is basically the same as that of the first embodiment, and will not be repeated here.
- FIG. 8 is a two-section composite shoe last 100b according to the third embodiment of the present invention, and the shoe last 100b is a spring last.
- the shoe last 100b includes an aluminum last core 10b, a plastic last shell 20b, a connecting assembly (not shown), a clamping part 30b and a fastener (not shown);
- the aluminum last core 10b includes a first last core 11b and a second last
- the core 12b, the first last core 11b and the second last core 12b are connected by connecting components; the connection between the first last core 11b and the second last core 12b is provided with a separator (not shown in the figure), and the separator protrudes from the connection
- the last shell 20b is divided into two parts.
- the clamping member 30b is provided with a first shaft hole 32b, and the first shaft hole 32b is arranged obliquely;
- the second last core 12b is provided with a first screw hole matching the first shaft hole 32b (not shown in the figure).
- the first last core 11b is provided with a second screw hole (not shown) that matches the first screw hole;
- the fastener passes through the first shaft hole 32b, the first screw hole and the second screw hole in sequence, and tightens
- the firmware locks the clip 30b, the first last core 11b and the second last core 12b.
- the two sides of the top of the clamping piece 30b are provided with dovetail grooves 31, and the machine equipment clamps and fixes the clamping piece 30b through the dovetail grooves 31, thereby realizing the fixing of the shoe last.
- This indirect clamping The method can reduce the damage to the shoe last during the moving or clamping process.
- the outer surface of the separator is coated with a non-stick layer.
- the non-stick layer is a Teflon layer.
- the structure of the connecting component may refer to the first embodiment or the second embodiment, and details are not repeated here.
- the scheme for preparing the two-section composite shoe last of this embodiment is basically the same as that of the first embodiment, and will not be repeated here.
- the shoe last is an open-lid last.
- the shoe last includes an aluminum last core, a plastic last shell, a connecting component, a clamp and a fastener;
- the aluminum last core includes a first last core and a second last core, and the first last core and the second last core are connected through a connecting component;
- the second last core has an upper end surface, and the plastic last core wraps the area of the first last core and the second last core except the upper end surface by injection molding;
- the clamping part is installed on the upper end surface of the second last core by fasteners;
- the second last core A separator is provided at the connection between the first last core and the second last core, and the separator protrudes from the connection and divides the last shell into two parts.
- connection assembly includes a pin, and the first core is arranged at the instep of the second core through the pin.
- the first last core is provided with a first positioning hole
- the second last core is also provided with a second positioning hole.
- the number of the first positioning hole and the second positioning hole is at least one, and the shape and distribution of the first positioning hole and the second positioning hole are random.
- the outer surface of the separator is coated with a non-stick layer.
- the non-stick layer is a Teflon layer.
- the number of separators is one, and of course a plurality of separators can be overlapped, and the plurality of separators are overlapped and clamped between the first core and the second core.
- the two separator sheets closest to the first core and the second core can be coated with a non-stick layer.
- the two separators closest to the first core and the second core may not be coated with a non-stick layer, and the first core and the second core may be directly bonded, and the rest of the separators shall be Apply a non-stick layer.
- the scheme for preparing the two-section composite shoe last of this embodiment is basically the same as that of the first embodiment, and will not be repeated here.
- the aluminum last core can be made of aluminum, aluminum alloy or other light-weight metals; and the fasteners used for connection and fastening can be bolts, and the bolts pass through the clamping parts Finally, it is screwed with the aluminum last core.
- the fasteners can also be replaced by screws or rivets.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
A two-section composite shoe last, comprising an aluminum last core, a plastic last housing, and a connection assembly. The aluminum last core comprises a first last core and a second last core, the first last core and the second last core being connected by means of the connection assembly; the plastic last housing wraps the aluminum last core, a partition piece is provided at the connection of the first last core and the second last core, and the partition piece extends out of the connection and divides the plastic last housing into two portions. Also provided is a preparation method for the two-section composite shoe last, comprising five steps of last core preparation, assembling, injection molding, cooling and shaping, and finishing.
Description
相关申请的交叉引用。Cross-references to related applications.
本申请要求于2021 年8月4日提交中国专利局、申请号为“202110891706.1”、发明名称为“两截式复合鞋楦及其制备方法”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。This application claims the priority of the Chinese patent application with the application number "202110891706.1" and the title of the invention "two-section composite shoe last and its preparation method" submitted to the China Patent Office on August 4, 2021, the entire contents of which are incorporated by reference incorporated in this application.
本发明涉及制鞋技术领域,特别是涉及两截式复合鞋楦及其制备方法。The invention relates to the technical field of shoemaking, in particular to a two-section composite shoe last and a preparation method thereof.
鞋楦是鞋的母体,是鞋的成型模具。鞋楦不仅决定鞋造型和式样,更决定着鞋是否合脚,能否起到保护脚的作用。目前鞋楦的制作通过机械加工而成,强度稳定可重复使用,但是目前针对一个鞋码和鞋型指定特定的鞋楦,鞋楦的精度要求高,对鞋型要求越高的产品,对鞋楦的精度和外形要求越高,加工的精度和难道越高,成本越高,但是人们审美的趋势变化很块,鞋楦更新换代也很快,这就造成了大量鞋楦的更新换代,成本增加。Shoe last is the matrix of shoes and the forming mold of shoes. The shoe last not only determines the shape and style of the shoe, but also determines whether the shoe fits and protects the foot. At present, the production of shoe lasts is made by mechanical processing, and the strength is stable and can be reused. However, at present, a specific shoe last is specified for a shoe size and shoe shape. The higher the accuracy and shape requirements of the last, the higher the processing accuracy and difficulty, the higher the cost, but the trend of people's aesthetics changes rapidly, and the replacement of shoe lasts is also very fast, which has resulted in the replacement of a large number of shoe lasts, cost Increase.
现在鞋楦的制作一般是通过切割方式将整只鞋楦分割成前掌和后跟,在分割时会出现切割面不平整和尺寸有变化及只能制作固定款式和尺寸的鞋,鞋楦一旦切割后不能再进行二次加工更改尺寸和样式。Nowadays, the production of shoe lasts is generally divided into forefoot and heel by cutting. During the division, the cutting surface will be uneven and the size will change, and only shoes with fixed styles and sizes can be produced. Once the shoe last is cut After that, secondary processing can no longer be performed to change the size and style.
根据本申请的各种实施例,提供一种两截式复合鞋楦,有效节约鞋楦毛坯的加工成本,提高鞋楦外形及尺寸的完整性。According to various embodiments of the present application, a two-section composite shoe last is provided, which can effectively save the processing cost of the shoe last blank and improve the integrity of the shape and size of the shoe last.
一种两截式复合鞋楦,包括铝楦芯、塑料楦壳及连接组件,所述铝楦芯包括第一楦芯和第二楦芯,所述第一楦芯和所述第二楦芯通过所述连接组件连接;所述塑料楦壳包裹住所述第一楦芯及所述第二楦芯,所述第一楦芯和所述第二楦芯的连接处设有分隔片;所述分隔片从连接处伸出并将所述塑料楦壳分割成两部分。A two-part composite shoe last, comprising an aluminum last core, a plastic last shell and a connecting assembly, the aluminum last core includes a first last core and a second last core, the first last core and the second last core Connected through the connection assembly; the plastic last core wraps the first last core and the second last core, and a separator is provided at the connection between the first last core and the second last core; A separator protrudes from the junction and divides the plastic last shell into two parts.
在其中一个实施例中,所述分隔片的外表面涂覆有不沾层。In one embodiment, the outer surface of the separator is coated with a non-stick layer.
在其中一个实施例中,所述两截式复合鞋楦还包括夹持件和紧固件;所述夹持件设有第一轴孔,所述铝楦芯设有第一螺丝孔;所述紧固件依次穿过所述第一轴孔和所述第一螺丝孔;所述紧固件将所述夹持件安装在所述铝楦芯的上端面。In one of the embodiments, the two-section composite shoe last further includes a clamping piece and a fastener; the clamping piece is provided with a first shaft hole, and the aluminum last core is provided with a first screw hole; the The fastener passes through the first shaft hole and the first screw hole in sequence; the fastener installs the clamping member on the upper end surface of the aluminum last core.
在其中一个实施例中,所述夹持件设有第二轴孔。In one of the embodiments, the clamping member is provided with a second shaft hole.
或者,所述夹持件设有燕尾槽。Alternatively, the clamping member is provided with a dovetail groove.
在其中一个实施例中,所述铝楦芯为开盖楦,所述连接组件包括插销,所述第一楦芯通过插销设置在所述第二楦芯的脚背位置。In one embodiment, the aluminum last core is an open-cap last, the connecting assembly includes a pin, and the first core last is arranged at the instep of the second core through the pin.
所述第二楦芯具有所述第一螺丝孔,所述紧固件将所述夹持件与所述第二楦芯连接。The second core has the first screw hole, and the fastener connects the clamping piece with the second core.
在其中一个实施例中,所述铝楦芯为弹簧楦,所述连接组件包括弹性件,所述弹性件弯曲成钩状,所述弹性件的一端与所述第一楦芯连接,所述弹性件的另一端与所述第二楦芯连接。In one of the embodiments, the aluminum last core is a spring last, and the connection assembly includes an elastic member, the elastic member is bent into a hook shape, one end of the elastic member is connected to the first last core, and the The other end of the elastic member is connected with the second last core.
所述第一楦芯和所述第二楦芯的连接处设有V型槽,所述夹持件设有与所述V型槽相匹配的卡接块;所述第一楦芯具有所述第一螺丝孔。The connection between the first core and the second core is provided with a V-shaped groove, and the clamping part is provided with a snap-in block matching the V-shaped groove; the first core has the the first screw hole.
当所述卡接块插接于所述V型槽时,所述紧固件将所述夹持件和所述第一楦芯连接。When the clamping block is inserted into the V-shaped groove, the fastener connects the clamping piece with the first core.
在其中一个实施例中,所述分隔片包括第一分隔片和第二分隔片,所述第一分隔片的上部分设置在所述第一楦芯与所述夹持件之间,所述第一分隔片的下部分设置在所述第一楦芯与所述第二楦芯之间;所述第二分隔片设置在所述第二楦芯与所述夹持件之间。In one of the embodiments, the spacer includes a first spacer and a second spacer, the upper part of the first spacer is arranged between the first core and the clamping piece, the The lower part of the first separator is arranged between the first core and the second core; the second separator is arranged between the second core and the clamping piece.
在其中一个实施例中,所述铝楦芯为弹簧楦,所述连接组件包括弹性件、连接片糊插销,所述连接片的两端通过插销与所述第一楦芯及所述第二楦芯连接;所述弹性件弯曲成钩状,所述弹性件的一端勾住所述连接片,所述弹性件的另一端通过插销与所述第二楦芯连接。In one of the embodiments, the aluminum last core is a spring last, the connecting assembly includes an elastic member, a connecting piece and a pin, and the two ends of the connecting piece are connected to the first core and the second through the pin. The last core is connected; the elastic piece is bent into a hook shape, one end of the elastic piece hooks the connecting piece, and the other end of the elastic piece is connected to the second last core through a pin.
所述第二楦芯设有第二螺丝孔,所述第一楦芯设有第三螺丝孔;所述紧固件依次穿过第一轴孔、第二螺丝孔及第三螺丝孔,所述紧固件将所述夹持件、所述第一楦芯及所述第二楦芯三者锁紧。The second last core is provided with a second screw hole, and the first last core is provided with a third screw hole; the fastener passes through the first shaft hole, the second screw hole and the third screw hole in turn, so that The fastener locks the clip, the first last core and the second last core.
根据本申请的各种实施例,还提供上述两截式复合鞋楦的制备方法,该制备方法操作简单,成本更低。According to various embodiments of the present application, a method for preparing the above-mentioned two-section composite shoe last is also provided, which is simple to operate and lower in cost.
一种两截式复合鞋楦的制备方法,包括以下步骤:制备楦芯:将铝或铝合金加热融成铝液,再将铝液倒入压铸机的内芯模具,通过水冷模式将铝液在模具凝固后出模,得到第一楦芯和第二楦芯;装配:将分隔片夹在第一楦芯和第二楦芯之间,通过连接组件将第一楦芯和第二楦芯组装得到铝楦芯;注塑:将塑胶材料加入注塑机进行加热溶解,将铝楦芯放入到注塑机的模具中进行注塑包裹;冷却定型:对注塑完成的模具进行冷却,使得模具内的塑料定型,定型后的鞋楦脱模后进行二次冷却,得到鞋楦粗胚;精加工:将夹持件与鞋楦粗胚进行组装,通过夹持件将鞋楦粗胚装设在刻楦机上,对鞋楦粗胚外表面的塑胶进行切削精加工,切削后的鞋楦粗胚露出分隔片,即可得到两截式复合鞋楦。A method for preparing a two-section composite shoe last, comprising the following steps: preparing a last core: heating aluminum or an aluminum alloy to form molten aluminum, pouring the molten aluminum into the inner core mold of a die-casting machine, and cooling the molten aluminum After the mold is solidified, the mold is released to obtain the first core and the second core; assembly: the separator is sandwiched between the first core and the second core, and the first core and the second core are connected through the connecting component Assemble the aluminum last core; injection molding: add the plastic material to the injection molding machine for heating and dissolving, put the aluminum last core into the mold of the injection molding machine for injection molding; cooling and setting: cool the injection molded mold so that the plastic in the mold Shaping, the shaped shoe last is demolded and then cooled twice to obtain the rough shoe last; finishing: Assemble the clamping part and the rough shoe last, and install the rough shoe last on the engraved last through the clamping part On the machine, the plastic on the outer surface of the rough shoe last is cut and finished, and the cut shoe last rough exposes the separator, and a two-section composite shoe last can be obtained.
在其中一个实施例中,在装配之前,对分隔片进行不粘胶处理,在分隔片的外表面涂覆特氟龙。In one of the embodiments, before assembly, the separator is treated with non-adhesive glue, and the outer surface of the separator is coated with Teflon.
本申请的两截式复合鞋楦设计为内外两层的复合式结构,通过在铝楦芯外包塑料楦壳,铝楦芯不易损坏,可以反复利用;而塑料楦壳可加工成不同尺寸的鞋楦,也可以通过热熔方式拆离铝楦芯,其利用成本低,步骤简单,有效节约鞋楦毛坯的加工成本;另外在第一楦芯和第二楦芯设有分隔片,方便在后续切削加工过程中对塑料楦壳进行分离,其断面可通过分隔片进行分离,切面完整,提高鞋楦外形及尺寸的完整性,使制作出来的鞋更舒适、更贴合脚型。The two-section composite shoe last of this application is designed as a composite structure with two layers of inner and outer layers. By wrapping the aluminum last core with a plastic last shell, the aluminum last core is not easy to damage and can be used repeatedly; and the plastic last shell can be processed into shoes of different sizes. Last, the aluminum last core can also be detached by hot melting, which has low utilization cost and simple steps, effectively saving the processing cost of the shoe last blank; in addition, there are separators on the first last core and the second last core, which are convenient for subsequent processing. During the cutting process, the plastic last shell is separated, and its cross-section can be separated by a separator. The cut surface is complete, which improves the integrity of the shape and size of the shoe last, and makes the manufactured shoes more comfortable and fit the shape of the foot.
本申请的两截式复合鞋楦的制备方法工序不复杂,操作简单,且成本较低。The preparation method of the two-part composite shoe last of the present application has uncomplicated procedures, simple operation and low cost.
为了更好地描述和说明这里公开的那些发明的实施例和/或示例,可以参考一幅或多幅附图。用于描述附图的附加细节或示例不应当被认为是对所公开的发明、目前描述的实施例和/或示例以及目前理解的这些发明的最佳模式中的任何一者的范围的限制。In order to better describe and illustrate embodiments and/or examples of the inventions disclosed herein, reference may be made to one or more of the accompanying drawings. Additional details or examples used to describe the drawings should not be considered limitations on the scope of any of the disclosed inventions, the presently described embodiments and/or examples, and the best mode of these inventions currently understood.
图1为第一实施例的两截式复合鞋楦的立体示意图。Fig. 1 is a three-dimensional schematic diagram of a two-section composite shoe last of the first embodiment.
图2为图1中的两截式复合鞋楦的***示意图。Fig. 2 is an exploded schematic diagram of the two-section composite shoe last in Fig. 1 .
图3为图2中的两截式复合鞋楦的另一角度的***示意图。Fig. 3 is an exploded schematic view from another angle of the two-section composite shoe last in Fig. 2 .
图4为图1中的两截式复合鞋楦沿活动组件剖开的剖面示意图。Fig. 4 is a schematic cross-sectional view of the two-section composite shoe last in Fig. 1 cut along the movable assembly.
图5为图1中的两截式复合鞋楦沿第二轴孔中心剖开的剖面示意图。Fig. 5 is a schematic cross-sectional view of the two-section composite shoe last in Fig. 1 cut along the center of the second shaft hole.
图6为第二实施例的两截式复合鞋楦沿第二轴孔中心剖开的剖面示意图。Fig. 6 is a schematic cross-sectional view of the two-section composite shoe last cut along the center of the second shaft hole of the second embodiment.
图7为第二实施例的两截式复合鞋楦的***示意图。Fig. 7 is an exploded schematic view of the two-section composite shoe last of the second embodiment.
图8为第三实施例的两截式复合鞋楦的立体示意图。Fig. 8 is a three-dimensional schematic diagram of a two-section composite shoe last of the third embodiment.
为了便于理解本发明,下面将对本发明进行更全面的描述。但是,本发明可以以许多不同的形式来实现,并不限于本文所描述的实施例。相反地,提供这些实施例的目的是使对本发明的公开内容的理解更加透彻全面。In order to facilitate the understanding of the present invention, the following will describe the present invention more fully. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the understanding of the disclosure of the present invention more thorough and comprehensive.
除非另有定义,本文所使用的所有的技术和科学术语与属于本发明的技术领域的技术人员通常理解的含义相同。本文中在本发明的说明书中所使用的术语只是为了描述具体的实施例的目的,不是旨在于限制本发明。Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention.
请参考图1至图5,为本发明的第一实施例的两截式复合鞋楦,为常规两截式弹簧楦。将鞋楦设计成内外两层的复合式结构,通过在铝楦芯外包塑料楦壳,铝楦芯不易损坏,可以反复利用;而塑料楦壳可加工成不同尺寸的鞋楦,也可以通过热熔方式拆离铝楦芯,其利用成本低,步骤简单,有效节约鞋楦毛坯的加工成本;另外在第一楦芯和第二楦芯设有分隔片,方便在后续切削加工过程中对塑料楦壳进行分离,其断面可通过分隔片进行分离,切面完整,提高鞋楦外形及尺寸的完整性,使制作出来的鞋更舒适、更贴合脚型。Please refer to FIG. 1 to FIG. 5 , which are the two-section composite shoe last according to the first embodiment of the present invention, which is a conventional two-section spring last. The shoe last is designed as a composite structure with two layers of inner and outer layers. By wrapping the aluminum last core with a plastic last shell, the aluminum last core is not easy to damage and can be used repeatedly; while the plastic last shell can be processed into shoe lasts of different sizes, and can also be processed by heating The aluminum last core is detached by melting, which has low cost and simple steps, which effectively saves the processing cost of the shoe last blank; in addition, there are separators on the first last core and the second last core, which are convenient for the plastic in the subsequent cutting process. The last shell is separated, and its cross-section can be separated by a separator. The cut surface is complete, which improves the integrity of the shape and size of the shoe last, and makes the manufactured shoes more comfortable and fit the shape of the foot.
具体地,如图1至图5所示,本发明的第一实施例的两截式复合鞋楦100,包括铝楦芯10、塑料楦壳20、连接组件50、夹持件30及紧固件40;铝楦芯10包括第一楦芯11和第二楦芯12;第一楦芯11和第二楦芯12通过连接组件50连接;铝楦芯10具有上端面,塑料楦壳20通过注塑方式包裹住铝楦芯10除上端面以外的区域。Specifically, as shown in Figures 1 to 5, the two-section composite shoe last 100 of the first embodiment of the present invention includes an aluminum last core 10, a plastic last shell 20, a connecting assembly 50, a clamping member 30 and a fastening 40; the aluminum last core 10 includes a first last core 11 and a second last core 12; the first last core 11 and the second last core 12 are connected by a connecting assembly 50; the aluminum last core 10 has an upper end surface, and the plastic last core 20 passes through The injection molding method wraps the area of the aluminum last core 10 except the upper end surface.
铝楦芯10放入注塑机与注塑模具固定,通过注塑方式从而实现塑料楦壳20包裹住铝楦芯10;夹持件30通过紧固件40可拆卸安装在铝楦芯10的上端面。The aluminum last core 10 is put into the injection molding machine and fixed with the injection mold, and the plastic last shell 20 wraps the aluminum last core 10 through injection molding;
第一楦芯11和第二楦芯12的连接处设有分隔片60,分隔片60从连接处伸出并将塑料楦壳20分割成两部分。A separator 60 is provided at the joint of the first last core 11 and the second last core 12 , and the separator 60 protrudes from the joint and divides the plastic last shell 20 into two parts.
为了防止分隔片60与塑料楦壳20粘接而影响塑料楦壳20的分离断面的整齐,分隔片60的外表面涂覆有不沾层(图未示),这样方便塑料楦壳20与分隔片60之间的分离。在本实施例中,该不沾层为特氟龙层。In order to prevent the separator 60 from being bonded to the plastic last shell 20 and affect the neatness of the separation section of the plastic last shell 20, the outer surface of the separator 60 is coated with a non-stick layer (not shown in the figure), which facilitates the separation of the plastic last shell 20 and the separator. Separation between 60 sheets. In this embodiment, the non-stick layer is a Teflon layer.
分隔片60的数量为一块,当然也可以重叠设置多块,多块分隔片60重叠夹持在第一楦芯11和第二楦芯12之间。与第一楦芯11和第二楦芯12最接近的两个分隔片60可以涂覆有不沾层。超过两块以上的分隔片60,与第一楦芯11和第二楦芯12最接近的两个分隔片60可以不涂覆不沾层,直接第一楦芯11和第二楦芯12粘接,其余分隔片60均涂覆不沾层。The number of separators 60 is one, of course, multiple separators 60 can be overlapped and clamped between the first core 11 and the second core 12 . The two separator sheets 60 closest to the first core 11 and the second core 12 may be coated with a non-stick layer. More than two separators 60, the two separators 60 closest to the first core 11 and the second core 12 may not be coated with a non-stick layer, and the first core 11 and the second core 12 are directly glued. Next, the rest of the separators 60 are all coated with a non-stick layer.
在本实施例中,第一楦芯11是后部与第二楦芯12的前部具有相互吻合的断面,断面呈阶梯状;分隔片60设置在第一楦芯11的断面与第二楦芯12的断面之间,分隔片60与断面匹配,呈阶梯状结构。通过阶梯状的断面来限位,一方面可以将分隔片60更好地夹持在第一楦芯11和第二楦芯12之间,与第一楦芯11和第二楦芯12两者形成卡接的夹持关系,不易脱落或移位;另一方面可以有效防止第一楦芯11和第二楦芯12上下错位,并且能匹配第一楦芯11与第二楦芯12快速装配定位,提高了制鞋效率。In this embodiment, the rear part of the first last core 11 and the front part of the second last core 12 have cross-sections that coincide with each other, and the cross-sections are stepped; Between the cross-sections of the core 12, the separator 60 matches the cross-sections, forming a stepped structure. The position is limited by the step-shaped section. On the one hand, the separator 60 can be better clamped between the first core 11 and the second core 12, and both the first core 11 and the second core 12 It forms a snap-fit clamping relationship, which is not easy to fall off or shift; on the other hand, it can effectively prevent the first last core 11 and the second last core 12 from being misaligned up and down, and can match the first last core 11 and the second last core 12 for quick assembly Positioning improves the efficiency of shoemaking.
在本实施例中,第一楦芯11设有第一定位孔110,第二楦芯12也设有第二定位孔120。第一定位孔110和第二定位孔120的数量至少为一个,第一楦芯11具有1个第一定位孔110,第二楦芯12具有1个第二定位孔120。第一定位孔110和第二定位孔120的形状和分布随意。In this embodiment, the first last core 11 is provided with a first positioning hole 110 , and the second last core 12 is also provided with a second positioning hole 120 . The number of the first positioning hole 110 and the second positioning hole 120 is at least one, the first last core 11 has one first positioning hole 110 , and the second last core 12 has one second positioning hole 120 . The shape and distribution of the first positioning holes 110 and the second positioning holes 120 are random.
在本实施例中,连接组件50包括弹性件51、连接片52和插销53;第一楦芯11的内部设有第一凹槽111,第二楦芯12的内部也设有第二凹槽121;分隔片60设有与弹性件51及连接片52相匹配的穿孔61;弹性件51和连接片52的两端分别穿过穿孔61伸入第一凹槽111和第二凹槽121,弹性件51和连接片52的两端通过插销53分别与第一楦芯11及第二楦芯12连接。In this embodiment, the connection assembly 50 includes an elastic member 51, a connecting piece 52 and a pin 53; a first groove 111 is provided inside the first core 11, and a second groove is also provided inside the second core 12. 121; the separator 60 is provided with a perforation 61 matching the elastic piece 51 and the connecting piece 52; the two ends of the elastic piece 51 and the connecting piece 52 respectively pass through the perforation 61 and extend into the first groove 111 and the second groove 121, Both ends of the elastic member 51 and the connecting piece 52 are respectively connected with the first last core 11 and the second last core 12 through bolts 53 .
第一凹槽111和第二凹槽121形成腔室(未标示),弹性件51和连接片52在该腔室内活动;弹性件51弯曲成钩状,弹性件51的一端勾住连接片52,弹性件51的一端通过插销53与第二楦芯12连接;连接片52支撑第一楦芯11和第二楦芯12的相对滑动、合拢,弹性件51为滑动、合拢提供了阻尼。The first groove 111 and the second groove 121 form a chamber (not marked), and the elastic member 51 and the connecting piece 52 move in the chamber; the elastic member 51 is bent into a hook shape, and one end of the elastic member 51 hooks the connecting piece 52 One end of the elastic member 51 is connected to the second last core 12 through a pin 53; the connecting piece 52 supports the relative sliding and closing of the first last core 11 and the second last core 12, and the elastic member 51 provides damping for sliding and closing.
在本实施例中,第一楦芯11的断面设有第一安装槽112,第二楦芯12的断面也设有第二安装槽122,分隔片60的两面分别装设于第一安装槽112及第二安装槽122中,分隔片60通过螺栓与第一楦芯11及第二楦芯12连接。为了防止分隔片60的安装影响铝楦芯10的本身装配及鞋楦的最终成型,第二楦芯12的断面设有与螺栓相匹配的卡接槽13。当然,也可以只在第一楦芯11设有第一安装槽112,或者只在第二楦芯12设有第二安装槽122;而卡接槽13可以只设在第一楦芯11或者在第一楦芯11及第二楦芯12均设有。In this embodiment, the section of the first last core 11 is provided with a first installation groove 112, and the section of the second last core 12 is also provided with a second installation groove 122, and the two sides of the separator 60 are respectively installed in the first installation groove. 112 and the second installation groove 122, the separator 60 is connected with the first last core 11 and the second last core 12 by bolts. In order to prevent the installation of the separator 60 from affecting the assembly of the aluminum last core 10 and the final molding of the shoe last, the cross section of the second last core 12 is provided with engaging grooves 13 that match the bolts. Of course, the first mounting groove 112 can also be provided only on the first core 11, or the second mounting groove 122 can only be provided on the second core 12; Both the first last core 11 and the second last core 12 are provided.
在本实施例中,夹持件30设有第一轴孔32,第一轴孔32倾斜设置;夹持件30在第一轴孔32两侧设有第二轴孔33,两个第二轴孔33垂直平行设置;第二楦芯12设有与第一轴孔32相匹配的第二螺丝孔14,第一楦芯11设有与第二螺丝孔14相匹配的第三螺丝孔15;紧固件40依次穿过第一轴孔32、第二螺丝孔14及第三螺丝孔15;紧固件40将夹持件30、第一楦芯11及第二楦芯12三者锁紧。In this embodiment, the clamping member 30 is provided with a first shaft hole 32, and the first shaft hole 32 is inclined; the clamping member 30 is provided with a second shaft hole 33 on both sides of the first shaft hole 32, and the two second The shaft holes 33 are arranged vertically and parallelly; the second last core 12 is provided with a second screw hole 14 matching the first shaft hole 32 , and the first last core 11 is provided with a third screw hole 15 matching the second screw hole 14 The fastener 40 passes through the first shaft hole 32, the second screw hole 14 and the third screw hole 15 in turn; the fastener 40 locks the clamping part 30, the first last core 11 and the second last core 12 tight.
夹持件30无需因为鞋楦是两截式结构而分割成两块,只需要在第一楦芯11和第二楦芯12设有连通的第二螺丝孔14和第三螺丝孔15,通过紧固件40依次穿过第一轴孔32、第二螺丝孔14及第三螺丝孔15,将夹持件30、第一楦芯11及第二楦芯12三者锁紧。这种连接方式既节省了夹持件30的制作成本,也方便了安装。机器设备通过第二轴孔33与夹持件30连接;进而实现了鞋楦的固定,这种间接夹持方式可以减少移动或夹持过程中对鞋楦带来的损害。The clamping part 30 does not need to be divided into two parts because the shoe last is a two-section structure. It only needs to be provided with the second screw hole 14 and the third screw hole 15 connected to the first last core 11 and the second last core 12. The fastener 40 sequentially passes through the first shaft hole 32 , the second screw hole 14 and the third screw hole 15 to lock the clip 30 , the first last core 11 and the second last core 12 . This connection mode not only saves the manufacturing cost of the clamping member 30, but also facilitates the installation. The machine equipment is connected with the clamping member 30 through the second shaft hole 33; thereby realizing the fixation of the shoe last, this indirect clamping method can reduce the damage to the shoe last during the moving or clamping process.
在本实施例中,紧固件40为螺栓,紧固件40穿过夹持件30后与铝楦芯10螺纹连接。In this embodiment, the fastener 40 is a bolt, and the fastener 40 is screwed to the aluminum last core 10 after passing through the clamping member 30 .
本实施例的两截式复合鞋楦的制备方法,包括制备楦芯、不粘胶处理、装配、注塑、冷却定型、精加工这六个步骤。The preparation method of the two-section composite shoe last in this embodiment includes six steps of preparing the last core, non-sticking treatment, assembly, injection molding, cooling and shaping, and finishing.
在本实施例中,制备楦芯的步骤为:将铝或铝合金加热到650度~700度,融成铝液,再将铝液倒入压铸机的内芯模具,通过水冷模式将铝液在模具凝固60秒后出模,得到第一楦芯和第二楦芯。In this embodiment, the steps of preparing the last core are as follows: heating aluminum or aluminum alloy to 650-700 degrees to melt the aluminum liquid, then pouring the aluminum liquid into the inner core mold of the die-casting machine, and cooling the aluminum liquid After the mold is solidified for 60 seconds, the mold is released to obtain the first last core and the second last core.
在本实施例中,不粘胶处理的步骤为:在分隔片的外表面涂覆特氟龙。In this embodiment, the step of non-adhesive treatment is: coating the outer surface of the separator with Teflon.
在本实施例中,装配的步骤为:将分隔片夹在第一楦芯和第二楦芯之间,通过连接组件将第一楦芯和第二楦芯组装得到铝楦芯。In this embodiment, the assembling step is as follows: clamp the separator between the first last core and the second last core, and assemble the first last core and the second last core through a connecting component to obtain an aluminum last core.
在本实施例中,注塑的步骤为:首先将注塑机进行开机预热,将塑胶材料PE加入注塑机进行加热溶解2小时;将铝楦芯放入到注塑机的模具中,当模头温度达到180度~200度,进行注塑包裹。In this embodiment, the steps of injection molding are as follows: first, start the injection molding machine to preheat, add the plastic material PE into the injection molding machine and heat and dissolve for 2 hours; put the aluminum last core into the mold of the injection molding machine, when the temperature of the die head Reach 180-200 degrees, then carry out injection molding wrapping.
在本实施例中,冷却定型的步骤为:对注塑完成的模具进行2分钟的冷水冷却,使得模具内的塑料定型,定型后的鞋楦脱模后放入冷水或温水中进行二次冷却,得到鞋楦粗胚。In this embodiment, the step of cooling and shaping is as follows: cooling the injection-molded mold with cold water for 2 minutes, so that the plastic in the mold is shaped, and after the shaped shoe last is demoulded, put it into cold water or warm water for secondary cooling. Obtain the shoe last rough embryo.
在本实施例中,精加工的步骤为:将夹持件与鞋楦粗胚进行组装,通过夹持件将鞋楦粗胚装设在刻楦机上,对鞋楦粗胚外表面的塑胶进行切削精加工,切削后的鞋楦粗胚露出分隔片,即可得到两截式复合鞋楦。In this embodiment, the steps of finishing are: assembling the clamping piece with the rough shoe last, installing the rough shoe last on the last engraving machine through the clamping piece, and finishing the plastic on the outer surface of the rough shoe last. After cutting and finishing, the rough shoe last after cutting is exposed to the separator, and a two-section composite shoe last can be obtained.
请参阅图6及图7所示,为本发明的第二实施例的两截式复合鞋楦100a,该鞋楦100a为V形两截式弹簧楦。鞋楦100a包括铝楦芯(未标示)、塑料楦壳20a、连接组件(未标示)、夹持件30a及紧固件40a;铝楦芯包括第一楦芯11a和第二楦芯12a,第一楦芯11a和第二楦芯12a通过连接组件连接;铝楦芯具有上端面,塑料楦壳20a通过注塑方式包裹住铝楦芯除上端面以外的区域;夹持件30a通过紧固件40a可拆卸安装在铝楦芯的上端面。Please refer to FIG. 6 and FIG. 7 , which is a two-section composite shoe last 100a according to the second embodiment of the present invention. The shoe last 100a is a V-shaped two-section spring last. The shoe last 100a includes an aluminum last core (not marked), a plastic last shell 20a, a connecting component (not marked), a clamping piece 30a and a fastener 40a; the aluminum last core includes a first last core 11a and a second last core 12a, The first last core 11a and the second last core 12a are connected by connecting components; the aluminum last core has an upper end surface, and the plastic last shell 20a wraps the area of the aluminum last core except the upper end surface by injection molding; the clamping part 30a is passed through a fastener 40a is detachably installed on the upper end surface of the aluminum last core.
第一楦芯11a和第二楦芯12a的连接处设有分隔片60a,分隔片60a从连接处伸出并将塑料楦壳20a分割成两部分。A separator 60a is provided at the connection between the first last core 11a and the second last core 12a, and the separator 60a protrudes from the connection and divides the plastic last shell 20a into two parts.
在本实施例中,分隔片60a包括第一分隔片62和第一分隔片63。第一分隔片62的上部分设置在第一楦芯11a与夹持件30a之间,第一分隔片62的下部分设置在第一楦芯11a与第二楦芯12a之间;第一分隔片63设置在第二楦芯12a与夹持件30a之间。In this embodiment, the separator 60 a includes a first separator 62 and a first separator 63 . The upper part of the first separator 62 is arranged between the first last core 11a and the clamping member 30a, and the lower part of the first separator 62 is arranged between the first last core 11a and the second last core 12a; the first partition The sheet 63 is arranged between the second core 12a and the clamp 30a.
第一分隔片62和第一分隔片63的外表面涂覆有不沾层(图未示)。The outer surfaces of the first separator 62 and the first separator 63 are coated with a non-stick layer (not shown).
在本实施例中,第一楦芯11a设有第一定位孔110a,第二楦芯12a也设有第二定位孔120a。第一定位孔110a及第二定位孔120a的数量至少为一个,第一楦芯11a具有1个第一定位孔110a,第二楦芯12a具有1个第二定位孔120a。第一定位孔110a及第二定位孔120a的形状和分布随意。In this embodiment, the first last core 11a is provided with a first positioning hole 110a, and the second last core 12a is also provided with a second positioning hole 120a. The number of the first positioning hole 110a and the second positioning hole 120a is at least one, the first last core 11a has one first positioning hole 110a, and the second last core 12a has one second positioning hole 120a. The shape and distribution of the first positioning holes 110a and the second positioning holes 120a are random.
在本实施例中,连接组件包括弹性件51a;第一楦芯11a的内部设有第一凹槽111a,第二楦芯12a的内部也设有第二凹槽(图未示);第一分隔片62设有与弹性件51a相匹配的穿孔61a;弹性件51a的两端穿过穿孔61a分别伸入第一凹槽111a和第二凹槽。In this embodiment, the connection assembly includes an elastic member 51a; a first groove 111a is provided inside the first last core 11a, and a second groove (not shown) is also provided inside the second last core 12a; the first The separator 62 is provided with a perforation 61a matching the elastic member 51a; two ends of the elastic member 51a pass through the perforation 61a and extend into the first groove 111a and the second groove respectively.
在本实施例中,夹持件30a设有第一轴孔32a,第一轴孔32a倾斜设置;夹持件30a在第一轴孔32a两侧设有第二轴孔33a,两个第二轴孔33a垂直平行设置;第一楦芯11a设有与第二轴孔32a相匹配的第一螺丝孔16;紧固件40a依次穿过第一轴孔32a和第一螺丝孔16,紧固件40a将夹持件30a和第一楦芯11a锁紧。In this embodiment, the clip 30a is provided with a first shaft hole 32a, and the first shaft hole 32a is arranged obliquely; the clip 30a is provided with a second shaft hole 33a on both sides of the first shaft hole 32a, and the two second shaft holes The shaft holes 33a are arranged vertically and parallelly; the first last core 11a is provided with a first screw hole 16 matching the second shaft hole 32a; the fastener 40a passes through the first shaft hole 32a and the first screw hole 16 in sequence, The piece 40a locks the clamping piece 30a and the first last core 11a.
第一楦芯11a和第二楦芯12a的连接处设有V型槽,夹持件30a设有与V型槽相匹配的卡接块34;卡接块34插接于V型槽;第一轴孔32a从夹持件30a顶端朝卡接块34的前端倾斜延伸。The connection between the first last core 11a and the second last core 12a is provided with a V-shaped groove, and the clip 30a is provided with a clamping block 34 matching the V-shaped groove; the clamping block 34 is inserted into the V-shaped groove; the second A shaft hole 32a extends obliquely from the top of the clamping member 30a toward the front of the engaging block 34 .
制备本实施例的两截式复合鞋楦的方案与第一实施例的方法基本相同,在此不再进行赘述。The scheme for preparing the two-section composite shoe last of this embodiment is basically the same as that of the first embodiment, and will not be repeated here.
请参阅图8所示,为本发明的第三实施例的两截式复合鞋楦100b,该鞋楦100b为弹簧楦。鞋楦100b包括铝楦芯10b、塑料楦壳20b、连接组件(图未示)、夹持件30b及紧固件(图未示);铝楦芯10b包括第一楦芯11b和第二楦芯12b,第一楦芯11b和第二楦芯12b通过连接组件连接;第一楦芯11b和第二楦芯12b的连接处设有分隔片(图未示),分隔片从连接处伸出并将楦壳20b分割成两部分。Please refer to FIG. 8 , which is a two-section composite shoe last 100b according to the third embodiment of the present invention, and the shoe last 100b is a spring last. The shoe last 100b includes an aluminum last core 10b, a plastic last shell 20b, a connecting assembly (not shown), a clamping part 30b and a fastener (not shown); the aluminum last core 10b includes a first last core 11b and a second last The core 12b, the first last core 11b and the second last core 12b are connected by connecting components; the connection between the first last core 11b and the second last core 12b is provided with a separator (not shown in the figure), and the separator protrudes from the connection And the last shell 20b is divided into two parts.
在本实施例中,夹持件30b设有第一轴孔32b,第一轴孔32b倾斜设置;第二楦芯12b设有与第一轴孔32b相匹配的第一螺丝孔(图未示),第一楦芯11b设有与第一螺丝孔相匹配的第二螺丝孔(图未示);紧固件依次穿过第一轴孔32b、第一螺丝孔及第二螺丝孔,紧固件将夹持件30b、第一楦芯11b及第二楦芯12b三者锁紧。In this embodiment, the clamping member 30b is provided with a first shaft hole 32b, and the first shaft hole 32b is arranged obliquely; the second last core 12b is provided with a first screw hole matching the first shaft hole 32b (not shown in the figure). ), the first last core 11b is provided with a second screw hole (not shown) that matches the first screw hole; the fastener passes through the first shaft hole 32b, the first screw hole and the second screw hole in sequence, and tightens The firmware locks the clip 30b, the first last core 11b and the second last core 12b.
在本实施例中,夹持件30b顶端的两侧面设有燕尾槽31,机器设备通过该燕尾槽31对夹持件30b进行夹持固定,进而实现了鞋楦的固定,这种间接夹持方式可以减少移动或夹持过程中对鞋楦带来的损害。In this embodiment, the two sides of the top of the clamping piece 30b are provided with dovetail grooves 31, and the machine equipment clamps and fixes the clamping piece 30b through the dovetail grooves 31, thereby realizing the fixing of the shoe last. This indirect clamping The method can reduce the damage to the shoe last during the moving or clamping process.
为了方便塑料楦壳与分隔片之间的分离,分隔片的外表面涂覆有不沾层。在本实施例中,该不沾层为特氟龙层。In order to facilitate the separation between the plastic last shell and the separator, the outer surface of the separator is coated with a non-stick layer. In this embodiment, the non-stick layer is a Teflon layer.
在本实施例中,连接组件的结构可以参考第一实施例或者第二实施例,在此不再赘述。In this embodiment, the structure of the connecting component may refer to the first embodiment or the second embodiment, and details are not repeated here.
制备本实施例的两截式复合鞋楦的方案与第一实施例的方法基本相同,在此不再进行赘述。The scheme for preparing the two-section composite shoe last of this embodiment is basically the same as that of the first embodiment, and will not be repeated here.
本发明的两截式复合鞋楦的第四实施例,鞋楦为开盖楦。鞋楦包括铝楦芯、塑料楦壳、连接组件、夹持件及紧固件;铝楦芯包括第一楦芯和第二楦芯,第一楦芯和第二楦芯通过连接组件连接;第二楦芯具有上端面,塑料楦壳通过注塑方式包裹住第一楦芯以及第二楦芯除上端面以外的区域;夹持件通过紧固件安装在第二楦芯的上端面;第一楦芯和第二楦芯的连接处设有分隔片,分隔片从连接处伸出,并将楦壳分割成两部分。In the fourth embodiment of the two-part composite shoe last of the present invention, the shoe last is an open-lid last. The shoe last includes an aluminum last core, a plastic last shell, a connecting component, a clamp and a fastener; the aluminum last core includes a first last core and a second last core, and the first last core and the second last core are connected through a connecting component; The second last core has an upper end surface, and the plastic last core wraps the area of the first last core and the second last core except the upper end surface by injection molding; the clamping part is installed on the upper end surface of the second last core by fasteners; the second last core A separator is provided at the connection between the first last core and the second last core, and the separator protrudes from the connection and divides the last shell into two parts.
在本实施例中,连接组件包括插销,第一楦芯通过插销设置在第二楦芯的脚背位置。In this embodiment, the connection assembly includes a pin, and the first core is arranged at the instep of the second core through the pin.
在本实施例中,第一楦芯设有第一定位孔,第二楦芯也设有第二定位孔。第一定位孔及第二定位孔的数量至少为一个,第一定位孔及第二定位孔的形状和分布随意。In this embodiment, the first last core is provided with a first positioning hole, and the second last core is also provided with a second positioning hole. The number of the first positioning hole and the second positioning hole is at least one, and the shape and distribution of the first positioning hole and the second positioning hole are random.
为了方便塑料楦壳与分隔片之间的分离,分隔片的外表面涂覆有不沾层。在本实施例中,该不沾层为特氟龙层。In order to facilitate the separation between the plastic last shell and the separator, the outer surface of the separator is coated with a non-stick layer. In this embodiment, the non-stick layer is a Teflon layer.
分隔片的数量为一块,当然也可以重叠设置多块,多块分隔片重叠夹持在第一楦芯和第二楦芯之间。与第一楦芯和第二楦芯最接近的两个分隔片可以涂覆有不沾层。超过两块以上的分隔片,与第一楦芯和第二楦芯最接近的两个分隔片可以不涂覆不沾层,直接第一楦芯和第二楦芯粘接,其余分隔片均涂覆不沾层。The number of separators is one, and of course a plurality of separators can be overlapped, and the plurality of separators are overlapped and clamped between the first core and the second core. The two separator sheets closest to the first core and the second core can be coated with a non-stick layer. For more than two separators, the two separators closest to the first core and the second core may not be coated with a non-stick layer, and the first core and the second core may be directly bonded, and the rest of the separators shall be Apply a non-stick layer.
制备本实施例的两截式复合鞋楦的方案与第一实施例的方法基本相同,在此不再进行赘述。The scheme for preparing the two-section composite shoe last of this embodiment is basically the same as that of the first embodiment, and will not be repeated here.
在以上实施例中,铝楦芯除了可以采用铝制成,还可以采用铝合金或其它轻质量金属制成;而作为连接紧固作用的紧固件,可以是螺栓,螺栓穿过夹持件后与铝楦芯螺纹连接。当然,紧固件也可以通过螺钉或铆钉代替。In the above embodiments, the aluminum last core can be made of aluminum, aluminum alloy or other light-weight metals; and the fasteners used for connection and fastening can be bolts, and the bolts pass through the clamping parts Finally, it is screwed with the aluminum last core. Of course, the fasteners can also be replaced by screws or rivets.
以上所述实施例仅表达了本发明的一种实施方式,其描述较为具体和详细,但并不能因此而理解为对发明专利范围的限制。应当指出的是,对于本领域的普通技术人员来说,在不脱离本发明构思的前提下,还可以做出若干变形和改进,这些都属于本发明的保护范围。因此,本发明专利的保护范围应以所附权利要求为准。The above-mentioned embodiment only expresses one implementation mode of the present invention, and its description is relatively specific and detailed, but it should not be understood as limiting the patent scope of the invention. It should be pointed out that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent for the present invention should be based on the appended claims.
Claims (10)
- 一种两截式复合鞋楦,包括铝楦芯、塑料楦壳及连接组件,所述铝楦芯包括第一楦芯和第二楦芯,所述第一楦芯和所述第二楦芯通过所述连接组件连接;所述铝楦壳包裹住所述塑料铝楦芯,所述第一楦芯和所述第二楦芯的连接处设有分隔片;所述分隔片从连接处伸出并将所述塑料楦壳分割成两部分。A two-part composite shoe last, comprising an aluminum last core, a plastic last shell and a connecting assembly, the aluminum last core includes a first last core and a second last core, the first last core and the second last core Connected through the connection assembly; the aluminum last shell wraps the plastic aluminum last core, and a separator is provided at the connection between the first last core and the second last core; the separator protrudes from the connection And the plastic last shell is divided into two parts.
- 根据权利要求1所述的两截式复合鞋楦,所述分隔片的外表面涂覆有不沾层。According to the two-section composite shoe last according to claim 1, the outer surface of the separator is coated with a non-stick layer.
- 根据权利要求2所述的两截式复合鞋楦,所述两截式复合鞋楦还包括夹持件和紧固件;所述夹持件设有第一轴孔,所述铝楦芯设有第一螺丝孔;所述紧固件依次穿过所述第一轴孔和所述第一螺丝孔;所述紧固件将所述夹持件安装在所述铝楦芯的上端面。According to the two-section composite shoe last according to claim 2, the two-section composite shoe last also includes a clamping piece and a fastener; the clamping piece is provided with a first shaft hole, and the aluminum last core is provided with a There is a first screw hole; the fastener passes through the first shaft hole and the first screw hole in sequence; the fastener installs the clamping piece on the upper end surface of the aluminum last core.
- 根据权利要求3所述的两截式复合鞋楦,所述夹持件设有第二轴孔或者设有燕尾槽。According to the two-part composite shoe last according to claim 3, the clamping part is provided with a second shaft hole or a dovetail groove.
- 根据权利要求4所述的两截式复合鞋楦,所述铝楦芯为开盖楦,所述连接组件包括插销,所述第一楦芯通过插销设置在所述第二楦芯的脚背位置;所述第二楦芯具有所述第一螺丝孔,所述紧固件将所述夹持件与所述第二楦芯连接。According to the two-section composite shoe last according to claim 4, the aluminum last core is an open-cover last, the connecting assembly includes a pin, and the first last core is arranged at the instep position of the second last core through the pin ; The second last core has the first screw hole, and the fastener connects the clamping piece with the second last core.
- 根据权利要求4所述的两截式复合鞋楦,所述铝楦芯为弹簧楦,所述连接组件包括弹性件,所述弹性件弯曲成钩状,所述弹性件的一端与所述第一楦芯连接,所述弹性件的另一端与所述第二楦芯连接;所述第一楦芯和所述第二楦芯的连接处设有V型槽,所述夹持件设有与所述V型槽相匹配的卡接块;所述第一楦芯具有所述第一螺丝孔;当所述卡接块插接于所述V型槽时,所述紧固件将所述夹持件和所述第一楦芯连接。According to the two-part composite shoe last according to claim 4, the aluminum last core is a spring last, the connecting assembly includes an elastic piece, the elastic piece is bent into a hook shape, and one end of the elastic piece is connected to the second A last core is connected, and the other end of the elastic member is connected to the second last core; a V-shaped groove is provided at the connection between the first last core and the second last core, and the clamping part is provided with A clamping block matching the V-shaped groove; the first last core has the first screw hole; when the clamping block is inserted into the V-shaped groove, the fastener will The clip is connected to the first core.
- 根据权利要求5所述的两截式复合鞋楦,所述分隔片包括第一分隔片和第二分隔片,所述第一分隔片的上部分设置在所述第一楦芯与所述夹持件之间,所述第一分隔片的下部分设置在所述第一楦芯与所述第二楦芯之间;所述第二分隔片设置在所述第二楦芯与所述夹持件之间。According to the two-section composite shoe last according to claim 5, the separator comprises a first separator and a second separator, and the upper part of the first separator is arranged between the first core and the clip. Between the holders, the lower part of the first spacer is set between the first core and the second core; the second spacer is set between the second core and the clip between the holders.
- 根据权利要求4所述的两截式复合鞋楦,所述铝楦芯为弹簧楦,所述连接组件包括弹性件、连接片糊插销,所述连接片的两端通过插销与所述第一楦芯及所述第二楦芯连接;所述弹性件弯曲成钩状,所述弹性件的一端勾住所述连接片,所述弹性件的另一端通过插销与所述第二楦芯连接;所述第二楦芯设有第二螺丝孔,所述第一楦芯设有第三螺丝孔;所述紧固件依次穿过第一轴孔、第二螺丝孔及第三螺丝孔,所述紧固件将所述夹持件、所述第一楦芯及所述第二楦芯三者锁紧。According to the two-section composite shoe last according to claim 4, the aluminum last core is a spring last, the connecting assembly includes an elastic member, a connecting piece pasted with a bolt, and the two ends of the connecting piece are connected to the first shoe through the bolt. The last core is connected to the second last core; the elastic member is bent into a hook shape, one end of the elastic member hooks the connecting piece, and the other end of the elastic member is connected to the second last core through a pin; The second last core is provided with a second screw hole, and the first last core is provided with a third screw hole; the fastener passes through the first shaft hole, the second screw hole and the third screw hole in turn, so that The fastener locks the clip, the first last core and the second last core.
- 一种两截式复合鞋楦的制备方法,包括如下步骤:制备楦芯:将铝或铝合金加热融成铝液,再将铝液倒入压铸机的内芯模具,通过水冷模式将铝液在模具凝固后出模,得到第一楦芯和第二楦芯;装配:将分隔片夹在第一楦芯和第二楦芯之间,通过连接组件将第一楦芯和第二楦芯组装得到铝楦芯;注塑:将塑胶材料加入注塑机进行加热溶解,将铝楦芯放入到注塑机的模具中进行注塑包裹;冷却定型:对注塑完成的模具进行冷却,使得模具内的塑料定型,定型后的鞋楦脱模后进行二次冷却,得到鞋楦粗胚;精加工:将夹持件与鞋楦粗胚进行组装,通过夹持件将鞋楦粗胚装设在刻楦机上,对鞋楦粗胚外表面的塑胶进行切削精加工,切削后的鞋楦粗胚露出分隔片,即可得到两截式复合鞋楦。A method for preparing a two-section composite shoe last, comprising the following steps: preparing a last core: heating aluminum or an aluminum alloy to form molten aluminum, then pouring the molten aluminum into the inner core mold of a die-casting machine, and cooling the molten aluminum After the mold is solidified, the mold is released to obtain the first core and the second core; assembly: the separator is sandwiched between the first core and the second core, and the first core and the second core are connected through the connecting component Assemble the aluminum last core; injection molding: add the plastic material to the injection molding machine for heating and dissolving, put the aluminum last core into the mold of the injection molding machine for injection molding; cooling and setting: cool the injection molded mold so that the plastic in the mold Shaping, the shaped shoe last is demolded and then cooled twice to obtain the rough shoe last; finishing: Assemble the clamping part and the rough shoe last, and install the rough shoe last on the engraved last through the clamping part On the machine, the plastic on the outer surface of the rough shoe last is cut and finished, and the cut shoe last rough exposes the separator, and a two-section composite shoe last can be obtained.
- 根据权利要求9所述的方法,在装配之前,对分隔片进行不粘胶处理,在分隔片的外表面涂覆特氟龙。According to the method according to claim 9, before assembling, the separator is subjected to non-adhesive treatment, and the outer surface of the separator is coated with Teflon.
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EP0313312A2 (en) * | 1987-10-23 | 1989-04-26 | C & J CLARK LIMITED | Manufacture of lasts for footwear |
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