CN218083893U

CN218083893U - Injection mold for manufacturing soles

Info

Publication number: CN218083893U
Application number: CN202220971419.1U
Authority: CN
Inventors: 杜文助; 郭明; 罗刚柱; 冯灼英
Original assignee: Putian Xinyuan Shoes Co ltd
Current assignee: Putian Xinyuan Shoes Co ltd
Priority date: 2022-04-25
Filing date: 2022-04-25
Publication date: 2022-12-20
Anticipated expiration: 2032-04-25

Abstract

The application relates to an injection mold for manufacturing soles, which comprises an upper mold, a middle frame and a lower mold, wherein the upper mold, the middle frame and the lower mold jointly form a cavity for forming the soles, and one sides of the upper mold and the lower mold are hinged with each other; the utility model provides an injection mold is behind the sole shaping, and the sole breaks away from half frame on a left side or half frame on the right side automatically, is favorable to reducing the effort of applying when taking out the sole to be favorable to reducing the damage to the sole.

Description

Injection mold for manufacturing soles

Technical Field

The application relates to the field of injection molds, in particular to an injection mold for manufacturing soles.

Background

The rubber shoe sole is usually made of rubber materials, so that the sole has good buffering performance, the forming method comprises compression molding, injection molding and the like, wherein the injection molding is suitable for preparing thermoplastic plastic soles or thermoplastic elastomer soles, and the rubber shoe sole has the advantages of high production efficiency, small post-processing workload of products, strong processing adaptability and the like. The mold for injection molding of the sole is generally installed on an injection molding machine and generally comprises a corresponding male mold and a corresponding female mold, raw materials are injected for molding after the mold is closed, and a molded product is taken out after the mold is opened to complete injection molding.

The mould has certain cohesion and bonding force after the sole injection moulding to the sole just has higher shaping temperature yet, when taking out the sole, generally need take out the sole from the mould with modes such as centre gripping or sled with the help of the instrument, the damage that easily causes the sole.

SUMMERY OF THE UTILITY MODEL

In order to reduce when taking out the sole from the mould, receive the instrument effort to influence the condition that causes the damage, this application provides an injection mold for making the sole.

The application provides an injection mold for making sole adopts following technical scheme:

the utility model provides an injection mold for making sole, includes mould, center and lower mould, go up mould, center and lower mould and form the cavity that is used for the shaping sole jointly, it is articulated mutually to go up one side of mould and lower mould, a serial communication port, the center includes half frame on a left side and half frame on the right side, half frame on a left side with half frame on the right side respectively with the lower mould slides along the articulated central line direction of last mould with the lower mould and is connected, half frame on a left side with be equipped with between the half frame on the right side and force half frame on a left side with the spring of half frame looks disjunctions on the right side, it is equipped with the hindrance to go up the mould half frame on a left side with the stop gear of half frame looks disjunctor on the right side works as when upward going up the mould and rotating, stop gear removes the limiting displacement to half frame on a left side and half frame on the right side.

By adopting the technical scheme, before the mold works, the upper mold is far away from the middle frame and the lower frame, when injection molding is needed, the upper mold is rotated to enable the upper mold to rotate around the hinge central line of the upper mold and the lower mold to be close to the middle frame, and the left half frame and the right half frame are close to each other under the action of the limiting piece; when the upper die rotates to a position where the lower surface of the upper die is attached to the upper surface of the middle frame, the upper die, the middle frame and the lower die form a cavity for filling rubber materials; rubber materials pours into the cavity into and after the cooling forms the sole, the mould is gone up in the rotation opening, at the in-process that the middle frame was upwards rotated to last mould, left side half frame and right side half frame are kept away from each other under the effect of spring, thereby make the sole break away from left side half frame or right side half frame, make the staff need not to exert effort with the help of the instrument to the sole and force sole and framework separation, be favorable to reducing the damage to the sole, and make the sole drop from left side half frame or framework automatically, be favorable to improving work efficiency.

Optionally, stop gear includes that two are located go up the stopper of mould lower surface, two the stopper is located respectively the both sides that the cavity is relative, the stopper is close to one side of cavity is equipped with first spigot surface, half frame on a left side with half frame on the right side is equipped with a second spigot surface respectively, and two second spigot surfaces are located respectively the both sides of cavity work as when going up mould downwardly rotating, first spigot surface is through supporting to lean on the second spigot surface forces half frame on a left side with half frame on the right side is close to each other.

Through adopting above-mentioned technical scheme, the second spigot surface that first spigot surface on the stopper leaned on the lower mould makes left half frame and right half frame be close to each other and forms the center, realizes its function of restricting left half frame and right half frame looks mutual separation.

Optionally, the limiting block is detachably connected with the upper die.

Through adopting above-mentioned technical scheme, go up the mould and rotate the in-process downwards, the first spigot surface of stopper and the second spigot surface butt and the friction of lower mould produce wearing and tearing easily in the long-term use to make the fit clearance increase between half frame on the left side and the right half frame, influence the shaping effect of sole, can change the stopper through making the stopper can dismantle with last mould and be connected, be favorable to prolonging limiting die's life.

Optionally, half frame on a left side is close to half frame on the right side one side is equipped with the arch, the arch runs through the upper surface and the lower surface of center, half frame on the right side be equipped with the recess of protruding adaptation.

By adopting the technical scheme, the bulges and the grooves are connected in a matched manner, so that the left half frame and the right half frame are aligned with each other; and protruding and recess adaptation are favorable to increasing the effective laminating area of left half frame and right half frame cooperation to be favorable to increasing the inboard seal of center, and then be favorable to reducing the condition in the gap between rubber materials infiltration left half frame and the right half frame.

Optionally, the edge of the cross section of the protrusion along the horizontal direction is in a sawtooth shape.

Through adopting above-mentioned technical scheme, be favorable to further increasing the effective laminating area of half frame on the left side and half frame on the right side cooperation to be favorable to further reducing the condition in the gap between half frame on the left side of rubber material infiltration and the half frame on the right side.

Optionally, the left half frame and the right half frame are respectively provided with a spring hole for placing a spring, the spring hole located in the left half frame and the spring hole located in the right half frame are aligned with each other, and the lengths of the spring holes are the same and smaller than half of the length of the spring.

By adopting the technical scheme, the spring is placed in the spring hole, so that the installation is convenient; the length in spring hole is the same, is favorable to making left half frame and right half frame when separating under the effect of elasticity, and displacement is close to be favorable to making two first spigot surfaces as far as possible simultaneously with the second spigot surface butt.

Optionally, the upper surface of lower bolster is equipped with the slot that slides of dovetail, the lower surface of half frame on a left side with half frame on the right side be equipped with respectively with the slot that slides connection's the arch that slides, the extending direction orientation in the slot that slides go up the mould with the articulated central line of lower mould.

Through adopting above-mentioned technical scheme, through the groove of sliding with the bellied cooperation that slides for left half frame and right half frame realize being connected with sliding of lower mould respectively, and restrict the displacement of center along vertical direction simultaneously.

Optionally, the upper surface of the lower die is provided with two stoppers for limiting the maximum distance between the left half frame and the right half frame, and the two stoppers are located on two opposite sides of the middle frame.

Through adopting above-mentioned technical scheme, the dog limits the biggest interval between half frame on the left side and the right half frame, is favorable to reducing and separates too far under the effect of spring force between half frame on the left side and the right half frame, leads to the unable circumstances of contacting each other of first spigot surface and second spigot surface.

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

1. through the arrangement of the middle frame which can be divided into the left half frame and the right half frame and the spring which forces the left half frame and the right half frame to separate, after the sole is molded by injection, the upper die is rotated upwards, and the spring forces the left half frame and the right half frame to separate, so that the sole is separated from the left half frame or the right half frame, a worker does not need to apply acting force to the sole by means of a tool to force the sole to separate from the middle frame, and the damage to the sole is reduced;

2. through setting up arch and recess, be favorable to increasing the effective laminating area of half frame on the left side and half frame on the right side cooperation to be favorable to increasing the inboard seal of center, and then be favorable to reducing the condition in the gap between half frame on the left side of rubber materials infiltration and the half frame on the right side.

Drawings

FIG. 1 is a schematic view of the overall structure of the present embodiment;

fig. 2 is a sectional view showing a closed state of the mold and a connection relationship between the slide groove and the slide protrusion in the present embodiment.

Description of the reference numerals: 1. an upper die; 11. injection molding holes; 12. a handle; 13. mounting grooves; 2. a middle frame; 21. a left half frame; 211. a protrusion; 22. a right half frame; 221. a groove; 23. a spring hole; 24. a second guide surface; 25. slipping the bulge; 3. a lower die; 31. a sliding groove; 4. a chamber; 5. a spring; 6. a limiting mechanism; 61. a limiting block; 611. a first guide surface; 7. a stopper; 8. and (4) bolts.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

The embodiment of the application discloses an injection mold for manufacturing a sole. Referring to fig. 1, the injection mold for manufacturing the sole comprises an upper mold 1, a middle frame 2 and a lower mold 3, wherein the upper mold 1, the middle frame 2 and the lower mold 3 together form a cavity 4 for forming the sole; go up mould 1 and be evagination mould, go up the evagination position and the center 2 adaptation of mould 1 (see fig. 2), go up mould 1 and be equipped with the injection molding hole 11 that is used for moulding plastics rubber materials, go up mould 1 and lower mould 3 one side articulated, go up mould 1 and keep away from one side of articulated side and be equipped with handle 12, center 2 is located between mould 1 and the lower mould 3, center 2 is split type structure, center 2 is including the left half frame 21 and the right half frame 22 that can separate each other.

In the injection molding process, rubber materials are injected into the cavity 4 from the injection molding holes 11, after the shoe sole is formed through cooling, the upper mold 1 is turned upwards, the left half frame 21 and the right half frame 22 are separated, and the shoe sole is taken out.

Referring to fig. 1, an interface between the left half frame 21 and the right half frame 22 is perpendicular to a hinge center line of the upper die 1 and the lower die 3, the left half frame 21 and the right half frame 22 are respectively connected with the lower die 3 in a sliding manner along the hinge center line of the upper die 1 and the lower die 3, a spring 5 for forcing the left half frame 21 and the right half frame 22 to separate is arranged between the left half frame 21 and the right half frame 22, and the upper die 1 is provided with a limiting mechanism 6 for preventing the left half frame 21 and the right half frame 22 from separating from each other.

Referring to fig. 1, the axial direction of the spring 5 faces the sliding direction of the left half frame 21 or the right half frame 22, the left half frame 21 and the right half frame 22 are respectively provided with spring holes 23 adapted to the spring 5, the spring holes 23 on the left half frame 21 and the spring holes 23 on the right half frame 22 are aligned with each other, and the lengths of the spring holes 23 are the same and less than half of the length of the spring 5; the number of the springs 5 is two, two springs 5 are respectively arranged at two sides of the cavity 4, and one spring 5 is close to the hinge part of the upper die 1 and the lower die 3.

Referring to fig. 1, the limiting mechanism 6 includes two limiting blocks 61, the two limiting blocks 61 are detachably connected with the upper die 1 through bolts 8, a mounting groove 13 adapted to the limiting blocks 61 is formed in the lower surface of the upper die 1, the limiting blocks 61 are located in the mounting groove 13, so that the connection strength between the limiting blocks 61 and the upper die 1 can be improved, the two limiting blocks 61 are located on two sides of a boundary surface between the left half frame 21 and the right half frame 22, a first guide surface 611 is arranged on one side of the limiting blocks 61 close to the cavity 4, the first guide surface 611 is an outward convex arc surface, the left half frame 21 and the right half frame 22 are provided with second guide surfaces 24, the second guide surfaces 24 are inclined surfaces, and when the upper die 1 rotates downward, the first guide surfaces 611 force the two second guide surfaces 24 to approach each other, that is, the left half frame 21 and the right half frame 22 are forced to approach each other.

Referring to fig. 1, one side of the left half frame 21 close to the right half frame 22 is provided with two protrusions 211, the two protrusions 211 are respectively located on two sides of the chamber 4, the protrusions 211 penetrate through the upper surface and the lower surface of the left half frame 21, the edges of the cross sections of the protrusions 211 along the horizontal direction are in a saw-toothed shape, one side of the right half frame 22 close to the left half frame 21 is provided with a groove 221 matched with the protrusions 211, the protrusions 211 and the groove 221 are arranged, effective matching area between the left half frame 21 and the right half frame 22 can be increased, sealing performance of the chamber 4 can be improved, and gaps between the left half frame 21 and the right half frame 22 in rubber material permeation can be reduced.

Referring to fig. 2, the lower surfaces of the left half frame 21 and the right half frame 22 are provided with two dovetail-shaped sliding protrusions 25, the upper surface of the lower die 3 is provided with two dovetail-shaped sliding grooves 31, and the sliding protrusions 25 and the sliding grooves 31 are connected in a sliding manner along the direction of the hinge central line of the upper die 1 and the lower die 3, so that the left half frame 21 and the right half frame 22 are connected with the lower die 3 in a sliding manner.

Referring to fig. 1, two stoppers 7 are disposed on the upper surface of the lower mold 3, the stoppers 7 are detachably connected to the lower mold 3 through bolts 8, the two stoppers 7 are respectively located at two sides of the interface between the left half frame 21 and the right half frame 22, and the stoppers 7 are used for limiting the maximum gap between the left half frame 21 and the right half frame 22 and reducing the situation that the left half frame 21 and the right half frame 22 slide to a position beyond the action range of the first guide surface 611 and the second guide surface 24.

The implementation principle of the embodiment of the application is as follows: before injection molding of the mold, the upper mold 1 is far away from the middle frame 2, and the left half frame 21 and the right half frame 22 of the middle frame 2 are separated from each other under the action of the spring 5; when injection molding is needed, the upper mold 1 is rotated to be matched with the middle frame 2, and in the process, the first guide surface 611 of the limiting block 61 abuts against the second guide surface 24 to force the left half frame 21 and the right half frame 22 to approach each other.

When the upper die 1 rotates to the state that the lower surface of the upper die is attached to the upper surface of the middle frame 2, the upper die 1, the middle frame 2 and the lower die 3 together form a cavity 4 for filling rubber materials; after the injection molding is completed and the sole is formed by cooling, the upper mold 1 is rotated upward, so that the left half frame 21 and the right half frame 22 are separated from each other, and the sole is separated from the left half frame 21 or the right half frame 22, so that the sole can be easily taken out of the mold.

Above-mentioned in-process staff need not to exert effort to the sole with the help of the instrument and makes the sole drop from the mould, is favorable to reducing the damage to the sole to can improve work efficiency.

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 an injection mold for making sole, includes mould (1), center (2) and lower mould (3), go up mould (1), center (2) and lower mould (3) and form chamber (4) that are used for the shaping sole jointly, it is articulated mutually to go up one side of mould (1) and lower mould (3), its characterized in that, center (2) are including half frame (21) on a left side and half frame (22) on the right side, half frame (21) on a left side with half frame (22) on the right side respectively with lower mould (3) are slided along the articulated central line direction of last mould (1) and lower mould (3) and are connected, half frame (21) on a left side with be equipped with between half frame (22) on the right side and force half frame (21) on a left side with half frame (22) spring (5) that separate mutually on the right side, it is equipped with the hindrance to go up mould (1) half frame (21) on a left side with half frame (22) the stop gear (6) that separates mutually, when going up mould (1) upwards rotates, remove stop gear (6) to half frame (21) on a left side and half frame (22) on the right side.

2. An injection mold for making soles according to claim 1, characterized in that: stop gear (6) include two and are located go up stopper (61) of mould (1) lower surface, two stopper (61) are located respectively chamber (4) relative both sides, stopper (61) are close to one side of chamber (4) is equipped with first spigot surface (611), half frame (21) in a left side with half frame (22) in the right side is equipped with a second spigot surface (24) respectively, and two second spigot surfaces (24) are located respectively the both sides of chamber (4), work as when going up mould (1) downwardly rotating, first spigot surface (611) is through leaning on second spigot surface (24), force half frame (21) in a left side with half frame (22) in the right side is close to each other.

3. An injection mold for making soles according to claim 2, characterized in that: the limiting block (61) is detachably connected with the upper die (1).

4. An injection mould for making soles according to claim 1, characterized in that: half frame (21) in a left side are close to one side of half frame (22) in the right side is equipped with arch (211), arch (211) run through the upper surface and the lower surface of center (2), half frame (22) in the right side be equipped with recess (221) of protruding (211) adaptation.

5. An injection mould for making soles according to claim 4, characterized in that: the edge of the section of the bulge (211) along the horizontal direction is in a sawtooth shape.

6. An injection mould for making soles according to claim 1, characterized in that: the left half frame (21) and the right half frame (22) are respectively provided with a spring hole (23) for placing a spring (5), the spring hole (23) located in the left half frame (21) and the spring hole (23) located in the right half frame (22) are aligned with each other, and the lengths of the spring holes (23) are the same and are smaller than half of the length of the spring (5).

7. An injection mold for making soles according to claim 1, characterized in that: the upper surface of lower mould (3) is equipped with slot (31) that slides of dovetail, half frame (21) in a left side with the lower surface of half frame (22) in the right side be equipped with respectively with the groove (31) that slides connection slide protruding (25), the extending direction orientation of the groove (31) that slides go up mould (1) with the articulated central line of lower mould (3).

8. An injection mould for making soles according to claim 1, characterized in that: the upper surface of the lower die (3) is provided with two stop blocks (7) used for limiting the maximum distance between the left half frame (21) and the right half frame (22), and the two stop blocks (7) are positioned on two opposite sides of the middle frame (2).