CN114801058A

CN114801058A - Mold for forming combined sole

Info

Publication number: CN114801058A
Application number: CN202210340392.0A
Authority: CN
Inventors: 林定虎; 厉剑丹
Original assignee: Wenzhou Chuangjia Shoe Material Co ltd
Current assignee: Wenzhou Chuangjia Shoe Material Co ltd
Priority date: 2022-04-02
Filing date: 2022-04-02
Publication date: 2022-07-29
Anticipated expiration: 2042-04-02
Also published as: CN114801058B

Abstract

The application discloses mould is used in shaping of combination sole, it includes inner bottom mould, inner bottom mould includes that first last mould and one end articulate the first lower mould on first last mould, the PU die cavity has been seted up on the first last mould, set up the hot runner that is linked together with the PU die cavity on the outer wall of first last mould, set up the big die cavity that is used for supplying the rubber big end to place on the first lower mould. This application has the effect that improves the sole quality.

Description

Mold for forming combined sole

Technical Field

The application relates to the field of sole processing, in particular to a mold for forming a combined sole.

Background

The sole is a part of the shoe, and the comfort and portability of the shoe are closely related to the sole.

The rubber sole has high elasticity and good wear resistance, but has heavy weight, and the PU sole has light weight, good flexibility and good moisture resistance. The sole includes outsole and insole, and the sole that adopts rubber outsole and PU insole has both advantages concurrently, when connecting rubber outsole and PU insole, adopts sticky mode.

In the process of implementing the application, the inventor finds that at least the following problems exist in the technology: PU insole easily splits and glues, leads to the PU insole that adopts sticky mode to connect poor with the connectivity of rubber outsole to influence the sole quality, wait to improve.

Disclosure of Invention

In order to improve the quality of the sole, the application provides a mold for forming the combined sole.

The application provides a mould for shaping of combination sole adopts following technical scheme:

the utility model provides a mould is used in shaping of combination sole, includes inner bottom mould, inner bottom mould includes that first last mould and one end articulate the first lower mould on first last mould, the PU die cavity has been seted up on the first last mould, set up the hot runner that is linked together with the PU die cavity on the outer wall of first last mould, set up the big die cavity that is used for supplying the rubber big end to place on the first lower mould.

Through adopting above-mentioned technical scheme, when producing the sole, put into big end cavity with the rubber outsole that has already produced earlier, then cover first last mould and first lower mould. And then injecting the PU insole material into the PU cavity through a hot runner, and opening the insole die after cooling. The material direct forming of PU inner bottom is on the rubber outsole, compares in connecting PU inner bottom and rubber outsole through sticky mode, through the inner bottom mould of this application for the direct injection moulding of PU inner bottom is on the rubber outsole, has avoided leading to the separation of PU inner bottom and rubber outsole because of the PU inner bottom is easily opened gluey, has improved the stability that PU inner bottom and rubber outsole are connected, thereby has improved the quality of sole.

Optionally, the bottom mold comprises a second upper mold and a second lower mold, one end of the second lower mold is hinged to the second upper mold, a bottom mold core is arranged on the second upper mold, a bottom mold cavity for the bottom mold core to stretch into and a flange groove communicated with the bottom mold cavity are formed in the second lower mold, the flange groove is arranged on the bottom mold cavity, a material blocking groove communicated with the bottom mold cavity is formed in the first lower mold, and the material blocking groove is arranged on the bottom mold cavity.

By adopting the technical scheme, when the rubber outsole is produced, raw materials of the rubber outsole are put into the outsole cavity, and then the rubber outsole is formed in a hot pressing mode. Because the flange groove ring big bottom cavity is arranged and communicated with the big bottom cavity, a circle of flanges can be formed on the side wall of the rubber big bottom together when the rubber big bottom is formed. When injection moulding PU inner bottom on the big end of rubber with flange, put into big end cavity with the big end of rubber, the flange is put into and is hindered the silo, the lid closes first last mould and first lower mould and pours into the material of PU inner bottom after, the flange has played the effect that blocks PU inner bottom material, has restricted PU inner bottom and has flowed to big end cavity in to be difficult for remaining PU inner bottom material on the outer wall of the big end of rubber of sole after making, the quality of sole has further been improved.

Optionally, the bottom of the retaining groove is provided with a positioning side groove, and the bottom of the material blocking groove is provided with a positioning groove.

Through adopting above-mentioned technical scheme, when producing the rubber outsole, the raw materials of rubber outsole forms the location limit of connecting on the flange in the location limit groove, when packing the rubber outsole into big bottom chamber, during the location limit inserted the constant head tank, has not only restricted the rubber outsole to remove in big bottom chamber, has still restricted the flange and has taken place to remove or pile up, has further improved the quality of sole.

Optionally, a material cutting mechanism is arranged on the first lower die, a sliding groove is formed in the groove bottom of the material blocking groove, a large bottom cavity of the sliding groove ring is arranged, and the material cutting mechanism comprises a special-shaped blade arranged in the sliding groove in a sliding mode and a power assembly used for driving the end portion of the special-shaped blade to move out of the sliding groove.

By adopting the technical scheme, because the special-shaped blade is arranged in the sliding groove and the sliding groove is arranged at the groove bottom of the material blocking groove, when the PU inner bottom is injection molded, the flange plays a role in blocking the PU inner bottom from entering the sliding groove. After the PU inner bottom is formed in an injection mode, the end part of the special-shaped blade is driven by the power assembly to move out of the sliding groove and cut off the joint of the flange and the rubber outsole. Compared with the shoe sole forming process, the shoe sole forming machine has the advantages that the working personnel can cut the flanges by using a knife, the flanges can be conveniently cut by the working personnel through the material cutting mechanism, the labor intensity of the working personnel is reduced, and the shoe sole forming machine is beneficial to shoe sole production.

Optionally, the power component includes push pedal and many connecting rods, the one end of connecting rod is connected on the heterotypic blade, the other end of connecting rod runs through outside the first lower mould and is connected with the push pedal, the connecting rod slides along the slip direction of heterotypic blade and sets up on first lower mould.

Through adopting above-mentioned technical scheme, the shaping back that finishes of PU inner bottom promotes the push pedal, and the push pedal promotes heterotypic blade through each connecting rod and removes to cut off the flange and be connected with the rubber outsole. Compare in directly promoting heterotypic blade, through push pedal and connecting rod for the staff can promote heterotypic blade outside first bed die, has improved the simplicity and convenience of the operation of cutting out the flange.

Optionally, the power assembly further comprises a return spring connected to the push plate.

Through adopting above-mentioned technical scheme, reset spring has played the effect that resets to heterotypic blade through push pedal and connecting rod, helps heterotypic blade to cut once more, through above-mentioned structure, the sole continuous production of being convenient for.

Optionally, first last mould includes the die holder and lets the position piece, half die cavity has been seted up on the die holder, the PU die cavity encloses through the chamber wall of half die cavity and the lateral wall of the tip of letting the position piece and closes and form, set up the groove of stepping down that is linked together with half die cavity on the die holder, the setting of the half die cavity of groove ring of stepping down, one side that the piece of stepping down is close to the groove tank bottom of stepping down is connected with the spring of stepping down.

By adopting the technical scheme, when the flanges are cut, the special-shaped blade is pushed to move towards the direction close to the first upper die through the push plate and the connecting rod, and the special-shaped blade is pressed on the yielding block through the flanges in the moving process. The special-shaped blade continuously moves upwards, the yielding block is collected into the yielding groove, on one hand, a moving space is provided for the flange, the movement of the special-shaped cutter is facilitated, on the other hand, a tangent plane is formed, and the cutting of the joint of the flange and the rubber outsole by the special-shaped cutter is facilitated.

Optionally, the power component still includes many gangbars that set up in the push pedal, the gangbar runs through and slides and sets up on first lower mould, just the gangbar is used for contradicting with the piece of stepping down, the groove of stepping down still is used for supplying the tip of gangbar to stretch into.

Through adopting above-mentioned technical scheme, compare in directly promoting the flange through heterotypic cutter in order to promote the piece of stepping down and remove, when promoting the baffle, drive the gangbar and remove, the gangbar supports to press on letting the piece and promotes the piece of stepping down and take in the groove of stepping down. The link rod pushes the position-giving block, so that the tool tip of the special-shaped blade is protected, and the service life of the special-shaped blade is prolonged.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the PU insole is formed, the rubber outsole is placed into the outsole cavity and covers the first upper die and the first lower die, and the PU insole material is injected into the PU cavity through the hot runner, so that the PU insole is directly injection-molded on the rubber outsole, the connection strength between the PU insole and the rubber outsole is improved, and the quality of the sole is improved;

2. the retaining side groove forms a retaining side, when the rubber outsole is arranged in the outsole cavity, the retaining side is arranged in the material blocking groove, so that raw materials of the PU insole are limited from entering the outsole cavity, and the quality of the sole is further improved;

3. through blank mechanism and let the position piece for PU inner bottom shaping back can directly cut out the flange in the inner bottom mould, and the staff of being convenient for produces.

Drawings

Fig. 1 is a schematic structural view of a outsole mold in embodiment 1 of the present application.

Fig. 2 is a schematic structural view of an insole mold in example 1 of the present application.

Fig. 3 is an enlarged schematic view at a in fig. 1.

Fig. 4 is a schematic partial explosion diagram of the first mold and the second mold when they are closed in embodiment 2 of the present application.

Fig. 5 is a schematic view showing a partial explosion of the protruded sliding groove when the first mold and the second mold are closed in embodiment 2 of the present application.

Description of reference numerals:

1. an inner bottom mold; 11. a first upper die; 111. a die holder; 1111. a half-cavity; 1112. a yielding groove; 112. a bit-yielding block; 113. a PU cavity; 114. a hot runner; 115. a positioning groove; 116. a yielding spring; 12. a first lower die; 121. a material blocking groove; 122. positioning a groove; 123. positioning the projection; 124. a plate collecting groove; 125. a sliding groove; 126. a large bottom cavity; 2. a outsole mold; 21. a second upper die; 211. a outsole core; 212. a sealing block; 213. positioning holes; 22. a second lower die; 221. a outsole cavity; 222. a flange groove; 223. positioning the side groove; 224. a positioning column; 225. a sealing groove; 3. a material cutting mechanism; 31. a special-shaped cutter; 32. a power assembly; 321. pushing the plate; 322. a connecting rod; 323. a linkage rod; 324. a return spring.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

Example 1

Example 1 discloses a mold for molding a composite shoe sole. Referring to fig. 1 and 2, the mold for molding a composite sole includes an inner sole mold 1 and an outsole mold 2.

Referring to fig. 1, the outsole mold 2 includes a second upper mold 21 and a second lower mold 22 having one end hinged to the second upper mold 21. The second upper die 21 is integrally formed with two outsole cores 211, the second lower die 22 is correspondingly provided with two outsole cavities 221, and the outsole cavities 221 are used for the outsole cores 211 to extend into.

Referring to fig. 1 and 3, the second lower die 22 is provided with two retaining grooves 222, the two retaining grooves 222 are respectively communicated with different outsole cavities 221, and the retaining grooves 222 are arranged adjacent to the outsole cavities 221. Each of the retaining grooves 222 has a positioning side groove 223 formed at the bottom thereof, and the positioning side groove 223 is disposed around the adjacent outsole cavity 221. Two sealing grooves 225 are formed in the second lower die 22, and the sealing grooves 225 surround the edge grooves 222. Two sealing blocks 212 are integrally formed on the second upper die 21, the sealing blocks 212 are arranged around the adjacent outsole cores 211, and the sealing grooves 225 are used for inserting different sealing blocks 212 to achieve a sealing effect.

Referring to fig. 1, three positioning columns 224 are integrally formed on the second lower die 22, three positioning holes 213 are formed in the second upper die 21 for different positioning columns 224 to be inserted into, and the positioning columns 224 and the positioning holes 213 play a role in positioning, so as to improve the quality of the produced rubber outsole.

Referring to fig. 1 and 3, when the rubber outsole is formed, the raw material of the rubber outsole is put into the outsole cavity 221, and then the second upper die 21 and the second lower die 22 are closed, the outsole core 211 and the outsole cavity 221 form the rubber outsole through a hot press forming mode, the second upper die 21 and the rib groove 222 form a rib connected to the side wall of the rubber outsole, and the second upper die 21 and the positioning rib groove 223 form a positioning rib connected to the rib.

Referring to fig. 2, the insole mold 1 includes a first upper mold 11 and a first lower mold 12 having one end hinged to the first upper mold 11. The first upper die 11 is provided with a PU cavity 113, and the outer wall of the first upper die 11 is provided with a hot runner 114 communicated with the PU cavity 113. The first lower die 12 is provided with a big bottom cavity 126 for placing a rubber big bottom and a material blocking groove 121 communicated with the big bottom cavity 126, and the material blocking groove 121 is arranged around the big bottom cavity 126. Dam tank 121 is adapted for retaining a dam to prevent PU feed from entering large bottom chamber 126. The groove bottom of the material blocking groove 121 is provided with a positioning groove 122, the positioning groove 122 is arranged around a large bottom cavity 126, and the positioning groove 122 is used for inserting a positioning edge.

Referring to fig. 2, the first lower die 12 is integrally formed with four positioning protrusions 123, the four positioning protrusions 123 are respectively located at four corners of the first lower die 12, and the first upper die 11 is provided with positioning grooves 115 for the insertion of the different positioning protrusions 123.

Embodiment 1 a mold for molding a composite shoe sole is implemented according to the following principle: when forming the PU insole, firstly, the rubber insole is placed into the outsole cavity 221, the flanges are placed into the material blocking groove 121, the positioning edges are inserted into the positioning grooves 122, then the first upper die 11 and the first lower die 12 are closed, and finally, PU insole raw materials are injected into the hot runner 114, so that the PU insole is directly formed on the rubber insole, and the quality of the sole is improved.

Example 2

Referring to fig. 4, the embodiment of the present application is different from embodiment 1 in that a blanking mechanism 3 is disposed on the first lower die 12, the blanking mechanism 3 includes a special-shaped cutter 31 and a power assembly 32, and the power assembly 32 includes a push plate 321, a plurality of connecting rods 322, a plurality of linkage rods 323, and a plurality of return springs 324. The end surface of the first lower die 12 away from the large bottom cavity 126 is provided with a plate collecting groove 124, and the push plate 321 is slidably arranged in the plate collecting groove 124. The return spring 324 is disposed in the plate-retracting groove 124, and two ends of the return spring 324 are respectively fixed on the groove bottom of the plate-retracting groove 124 and the push plate 321. The return spring 324 plays a role in return, and when the return spring 324 is in a natural state, the push plate 321 is located in the plate-retracting groove 124.

Referring to fig. 4 and 5, a sliding groove 125 is formed at the bottom of the material blocking groove 121, the sliding groove 125 is arranged around the large bottom cavity 126, and one end of the sliding groove 125, which is far away from the plate collecting groove 124, is communicated with the large bottom cavity 126. The special-shaped cutter 31 is arranged in the sliding groove 125 in a sliding mode, and the connecting rod 322 is arranged on the first lower die 12 in a sliding mode along the sliding direction of the special-shaped cutter 31. One end of the connecting rod 322 is fixed on the push plate 321, and the other end of the connecting rod 322 penetrates into the sliding groove 125 through the plate-retracting groove 124 and is fixedly connected with the special-shaped cutter 31. When the return spring 324 is in a natural state, the special-shaped cutter 31 is accommodated in the sliding groove 125.

Referring to fig. 4, the first upper mold 11 includes a mold base 111 hinged to the first lower mold 12 and a relief block 112 disposed on the mold base 111, the mold base 111 is provided with a half cavity 1111 and a relief groove 1112 communicated with the half cavity 1111, and the relief groove 1112 is disposed around the half cavity 1111. The abdicating block 112 is slidably disposed in the abdicating groove 1112, the abdicating groove 1112 is disposed with a plurality of abdicating springs 116, two ends of the abdicating spring 116 are respectively fixedly connected with the groove bottoms of the abdicating block 112 and the abdicating groove 1112, and the abdicating spring 116 extends and retracts along the sliding direction of the abdicating block 112. When the yielding spring 116 is in a natural state, the end face of the yielding block 112, which is far away from the yielding spring 116, is flush with the end face of the die holder 111, which is provided with the half-cavity 1111, and the PU cavity 113 is formed by enclosing the side wall of the end part of the yielding block 112 and the cavity wall of the half-cavity 1111.

Referring to fig. 4, one end of the linkage rod 323 is fixed on the push plate 321, the other end of the linkage rod 323 penetrates through the first lower die 12, and the linkage rod 323 is slidably disposed on the first lower die 12. The end of the linkage rod 323 far away from the push plate 321 is used for abutting against the abdicating block 112, and the abdicating groove 1112 is used for the end of the linkage rod 323 and the end of the special-shaped blade to extend into.

Embodiment 2 an implementation principle of a mold for forming a combined sole is as follows: after the PU inner bottom is formed, the push plate 321 is pressed, the push plate 321 drives the linkage rod 323 and the connecting rod 322 to move, the linkage rod 323 is pressed on the yielding block 112 and pushes the yielding block 112 to be received in the yielding groove 1112, and meanwhile, the connecting rod 322 pushes the special-shaped cutter 31 to move towards the direction close to the yielding groove 1112 and cut off the connection part of the flange and the rubber outsole. Then the force applied on the push plate 321 is removed, the abdicating spring 116 drives the abdicating block 112 to reset, and the reset spring 324 drives the baffle, the linkage rod 323, the connecting rod 322 and the special-shaped cutter 31 to reset. Through the structure, the sole is convenient to produce.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a mould for shaping of combination sole which characterized in that: including inner bottom mould (1), inner bottom mould (1) includes that first last mould (11) and one end articulate first lower mould (12) on first last mould (11), PU die cavity (113) have been seted up on first last mould (11), offer hot runner (114) that are linked together with PU die cavity (113) on the outer wall of first last mould (11), offer on first lower mould (12) and be used for supplying big end of rubber to place big end chamber (126).

2. The mold for molding a combined shoe sole according to claim 1, wherein: still include big end mould (2), big end mould (2) are gone up mould (21) and second lower mould (22) that one end articulates on mould (21) on the second including the second, it is provided with big end core (211) on mould (21) to go up the second, offer on second lower mould (22) and be used for supplying big end cavity (221) that big end core (211) stretched into and keep off limit groove (222) that are linked together with big end cavity (221), keep off limit groove (222) and encircle big end cavity (221) and set up, offer on first lower mould (12) and be linked together with big end cavity (126) hinder silo (121), it encircles big end cavity (126) and sets up to hinder silo (121).

3. The mold for molding a combined shoe sole according to claim 2, wherein: the bottom of the edge blocking groove (222) is provided with a positioning edge groove (223), and the bottom of the material blocking groove (121) is provided with a positioning groove (122).

4. The mold for molding a composite shoe sole according to claim 2, wherein: be provided with blank mechanism (3) on first lower mould (12), sliding tray (125) have been seted up to the tank bottom that hinders silo (121), sliding tray (125) ring big end cavity (126) set up, blank mechanism (3) are including sliding heterotypic blade that sets up in sliding tray (125) and power component (32) that are used for driving the tip of heterotypic blade and shift out sliding tray (125).

5. The mold for molding a combined shoe sole according to claim 4, wherein: the power assembly (32) comprises a push plate (321) and a plurality of connecting rods (322), one end of each connecting rod (322) is connected to the special-shaped blade, the other end of each connecting rod (322) penetrates through the first lower die (12) to be connected with the push plate (321), and the connecting rods (322) are arranged on the first lower die (12) in a sliding mode along the sliding direction of the special-shaped blades.

6. The mold for molding a combined shoe sole according to claim 5, wherein: the power assembly (32) also includes a return spring (324) coupled to the push plate (321).

7. The mold for molding a combined shoe sole according to claim 4, wherein: first go up mould (11) including die holder (111) and let position piece (112), half die cavity (1111) have been seted up on die holder (111), PU die cavity (113) are through the chamber wall of half die cavity (1111) and let the lateral wall of the tip of position piece (112) enclose to close and form, offer groove (1112) of stepping down that are linked together with half die cavity (1111) on die holder (111), it sets up to step down groove (1112) ring half die cavity (1111), let one side that position piece (112) are close to groove (1112) tank bottom be connected with spring (116) of stepping down.

8. The mold for molding a combined shoe sole according to claim 7, wherein: power component (32) still include many gangbars (323) of setting on push pedal (321), gangbar (323) run through and slide and set up on first lower mould (12), just gangbar (323) are used for with let a piece (112) conflict, the tip that lets a groove (1112) still is used for supplying gangbar (323) stretches into.