CN216860383U - Sole foaming forming die - Google Patents
Sole foaming forming die Download PDFInfo
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- CN216860383U CN216860383U CN202122992638.6U CN202122992638U CN216860383U CN 216860383 U CN216860383 U CN 216860383U CN 202122992638 U CN202122992638 U CN 202122992638U CN 216860383 U CN216860383 U CN 216860383U
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- reinforcing plate
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Abstract
The utility model discloses a sole foaming forming die, which comprises a first die body and a second die body, wherein the first die body is provided with a first die body; the first die body can be close to or far away from the second die body, a cavity for foaming molding is formed between the first die body and the second die body, and a positioning structure for positioning one surface of the reinforcing plate is arranged in the first die body; and a pressing structure used for pressing the other surface of the reinforcing plate is arranged in the second die body. When the preparation sole, can fix a position the reinforcing plate on first die body earlier, then first die body removes to the certain distance after toward second die body direction, pour into the foaming granule into in the cavity of formation between second die body and the first die body, then, use vapor to order about the foaming granule foaming, then, first die body continues to remove toward second die body direction, final foaming granule foam molding is in cavity and partial parcel reinforcing plate, make the reinforcing plate fastness extremely strong, prevent effectively that the reinforcing plate from breaking away from, bulk strength is big.
Description
Technical Field
The utility model relates to the technical field of foaming and forming, in particular to a sole foaming and forming die.
Background
The sole is in the manufacture process, in order to strengthen the toughness and the intensity of sole, some shoes such as basketball shoes or running shoes's sole can add a carbon plate usually, the carbon plate is the carbon fiber board, it is by the combined material that epoxy and carbon fiber silk bonding back formed, the carbon plate has advantages such as light in weight, toughness is good and intensity is good for the basketball shoes or the running shoes that make have very high elasticity, increase of service life, the sole is indeformable under the large amount of exercise simultaneously.
Carbon plate sole includes first bottom, carbon plate and second bottom usually, and the manufacturing process of traditional carbon plate sole is: the first bottom is foamed and formed, then the second bottom is foamed and formed, and finally one surface of the carbon plate is bonded to the first bottom, and the other surface of the carbon plate is bonded to the second bottom.
However, the manufacturing process steps of the traditional carbon plate sole are more, the time spent is longer, two sets of molds are needed to be used for manufacturing the first bottom and the second bottom respectively, the cost is high, the carbon plate is bonded behind the first bottom and the second bottom, the phenomenon of infirm bonding exists, and the overall strength is affected.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to solving at least one of the technical problems in the art to some extent. Therefore, the utility model aims to provide a sole foaming and forming die, which is high in manufacturing efficiency, low in cost and higher in overall strength, and a reinforcing plate is integrally formed during foaming and forming.
In order to achieve the above object, an embodiment of the present invention provides a sole foaming mold, which includes a first mold body and a second mold body;
the first die body can be close to or far away from the second die body, a cavity for foaming forming is formed between the first die body and the second die body, and a positioning structure for positioning one surface of the reinforcing plate is arranged in the first die body; and a pressing structure used for pressing the other surface of the reinforcing plate is arranged in the second die body.
According to the sole foaming forming die provided by the embodiment of the utility model, when a sole is manufactured, the reinforcing plate can be positioned on the first die body firstly, then the first die body moves to the second die body to a certain distance, foaming particles are injected into a cavity formed between the second die body and the first die body, then the foaming particles are driven to foam by using water vapor, then the first die body continues to move to the second die body, finally the foaming particles are foamed and formed in the cavity and partially wrap the reinforcing plate, so that the reinforcing plate is extremely strong in firmness, the reinforcing plate is effectively prevented from being separated, and the overall strength is high. Therefore, when the foaming forming is carried out, the reinforcing plate is integrally formed, the manufacturing efficiency is high, the cost is low, and the integral strength is higher.
In addition, the sole foaming mold provided by the above embodiment of the utility model may further have the following additional technical features:
furthermore, location structure includes reference column and support positioning piece, and the reference column sets up to a plurality ofly, and a plurality of reference columns distribute round support positioning piece.
Furthermore, the end part of the positioning column is provided with a positioning pin.
Furthermore, the end part of the positioning pin is in a circular truncated cone shape.
Furthermore, the positioning column comprises a first positioning column used for positioning one end of the reinforcing plate and a second positioning column used for positioning the other end of the reinforcing plate.
Furthermore, a first cavity is formed between the first positioning column and one side of the supporting and positioning block, and a second cavity is formed between the second positioning column and the other side of the supporting and positioning block.
Furthermore, the height of the first positioning column is greater than that of the second positioning column.
Furthermore, the end part of the supporting and positioning block is an arc-shaped surface which is used for being attached to the middle part of the reinforcing plate.
Further, the compressing structure comprises a first compressing structure, a second compressing structure and a middle compressing structure; the axial center line of the first compression structure is coincident with the axial center line of the first positioning column, the axial center line of the second compression structure is coincident with the axial center line of the second positioning column, and the middle compression structure corresponds to the arc-shaped surface of the supporting and positioning block.
Furthermore, the second die body comprises a first fixing plate and a second fixing plate, an accommodating cavity is formed between the first fixing plate and the second fixing plate, and a through hole is formed in the second fixing plate; each hold-down structure includes spliced pole, compression screw and elastic component, and the spliced pole is located and holds the intracavity, and the spliced pole setting is on first fixed plate, and compression screw includes head and pole portion, and the movable setting of head of compression screw is holding the intracavity, and the pole portion of compression screw passes the through-hole and can insert the cavity, and elastic component one end cup joints on the spliced pole, and the elastic component other end supports and leans on at the head of compression screw.
Further, the elastic member is a compression spring.
Furthermore, a feed inlet is formed in the second die body.
Furthermore, a limiting groove is formed in the first die body, a limiting protrusion is formed in the second die body, and after the first die body is close to the second die body and the die is closed, the limiting protrusion is inserted into the limiting groove.
Drawings
FIG. 1 is a schematic structural view of a sole foaming mold according to an embodiment of the present invention during injection foaming;
FIG. 2 is an enlarged view of a portion of FIG. 1;
FIG. 3 is an exploded view of a sole foaming mold according to an embodiment of the present invention;
FIG. 4 is a schematic structural view of a sole foaming mold according to an embodiment of the utility model when the mold is closed;
FIG. 5 is a schematic view of a connection between a first mold body and a stiffener according to an embodiment of the present disclosure;
FIG. 6 is a schematic structural diagram of a reinforcing plate according to an embodiment of the present invention;
FIG. 7 is a cross-sectional view of another angle of the foaming mold for shoe sole according to the embodiment of the present invention;
fig. 8 is a schematic structural view of a sole manufactured by the sole foaming mold according to the embodiment of the utility model.
Description of the reference symbols
First die body 1 spacing groove 11
Second leaning slope 13 of sole grain 12
Through hole 221 of second fixing plate 22
Accommodating cavity 23 feed opening 24
Position-limiting projection 25 and first connecting plate 26
Sawtooth lines 271 of the second connecting plate 27
First abutting inclined surface 272 cavity 3
Positioning hole 41 of positioning reinforcing plate 4
Locating pin 511 first locating column 512
The second positioning post 513 supports the positioning block 52
Middle pressing structure 63 of second pressing structure 62
Connecting post 64 hold-down screw 65
The elastic member 66 molds the molding hole 7.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.
As shown in fig. 1 to 8, a sole foaming mold according to an embodiment of the present invention includes a first mold body 1 and a second mold body 2; the first die body 1 can be close to or far away from the second die body 2, a cavity 3 for foaming forming is formed between the first die body 1 and the second die body 2, and a positioning structure 5 for positioning one surface of a reinforcing plate 4 is arranged in the first die body 1; and a pressing structure 6 for pressing the other surface of the reinforcing plate 4 is arranged in the second die body 2. In this example, the reinforcing plate 4 is a carbon plate, but it is needless to say that other types of reinforcing plates 4 may be used.
When the preparation sole, can fix a position reinforcing plate 4 on first die body 1 earlier, then first die body 1 removes to the certain distance after toward 2 directions of second die body, inject the foaming granule in the cavity 3 that forms between second die body 2 and the first die body 1, then, use vapor to order about the foaming of foaming granule, then, first die body 1 continues to remove toward 2 directions of second die body, final foaming granule foam molding is in cavity 3 and partial parcel reinforcing plate 4, make 4 fastnesses of reinforcing plate extremely strong, prevent effectively that reinforcing plate 4 from breaking away from, bulk strength is big. Therefore, when the foam forming is carried out, the reinforcing plate 4 is integrally formed, the manufacturing efficiency is high, the cost is low, and the integral strength is higher.
Optionally, the positioning structure 5 includes a plurality of positioning columns 51 and a supporting and positioning block 52, the positioning columns 51 are disposed in plurality, and the plurality of positioning columns 51 are distributed around the supporting and positioning block 52. The carbon plates are positioned at multiple angles by the positioning columns 51 and the supporting and positioning blocks 52, so that the situation that the carbon plates shake in the foaming process is prevented, and the stability is improved.
In this example, the end of the positioning column 51 is provided with a positioning pin 511, the carbon plate can be provided with a positioning hole 41 or a positioning groove, the inner diameter of the positioning hole 41 or the positioning groove is slightly larger than the positioning pin 511, and the positioning pin 511 can be inserted into the positioning hole 41 or the positioning groove of the carbon plate to prevent the carbon plate from shaking. Wherein, locating pin 511's tip can be the round platform shape, correspondingly, locating hole 41 or constant head tank also can be the round platform shape, so, when locating pin 511 inserted the locating hole 41 or the constant head tank of carbon plate, the lateral wall of locating hole 41 or constant head tank can slide in along locating pin 511's outer wall to it is more convenient to make the location, greatly improves positioning efficiency.
In some examples, the positioning post 51 includes a first positioning post 512 for positioning one end of the reinforcing plate 4 and a second positioning post 513 for positioning the other end of the reinforcing plate 4. The first positioning column 512 can position the front part of the carbon plate, the second positioning column 513 can position the rear part of the carbon plate, and the support positioning block 52 can position the middle part of the carbon plate. A first cavity 31 is formed between the first positioning column 512 and one side of the supporting and positioning block 52, and a second cavity 32 is formed between the second positioning column 513 and the other side of the supporting and positioning block 52. That is to say, when foaming, the expanded material gets into in first cavity 31 and the second cavity 32 for the carbon sheet is mostly wrapped up by the expanded material, makes after the carbon sheet combines with the material after the foaming, and stability is strong.
As an example, the height of the first positioning column 512 is greater than that of the second positioning column 513, that is, the carbon plate is arc-shaped when viewed from the side, the front portion of the carbon plate is lower, the rear portion of the carbon plate is higher, and the height of the first positioning column 512 is greater than that of the second positioning column 513, so that the carbon plate can be effectively positioned in a fitting manner. In this example, the end of the supporting and positioning block 52 is an arc surface 521 for fitting to the middle of the reinforcing plate 4. After the foaming shaping, the carbon plate position that the support positioning piece 52 corresponds exposes in the air for carbon plate bulk strength is bigger, and after using this sole preparation to accomplish shoes, during the use shoes, the pressure that the front portion and the rear portion of shoes bore is great, and carbon plate middle part position exposes in the air, can cushion the impact force in the shoes use, improves life, reduces expanded material's cost, and whole more pleasing to the eye simultaneously.
In some examples, the compacting structure 6 includes a first compacting structure 61, a second compacting structure 62, and a middle compacting structure 63; the axial center line that first compact structure 61 place coincides with the axial center line that first reference column 512 place, the axial center line that second compact structure 62 place coincides with the axial center line that second reference column 513 place, middle part compact structure 63 corresponds with the arcwall face 521 that supports locating piece 52, set up compact structure 6 and location structure 5 through the one-to-one correspondence, make locating hole 41 or the constant head tank location structure 5 location on the one side at carbon plate place, and locating hole 41 or the constant head tank corresponding position on the another side at carbon plate place are compressed tightly by compact structure 6, thereby make the stress point be located same position, prevent that two sides atress is inhomogeneous and produce unstable phenomenon, further improve stability.
In this example, the second casing 2 includes a first fixing plate 21 and a second fixing plate 22, a receiving cavity 23 is formed between the first fixing plate 21 and the second fixing plate 22, and a through hole 221 is formed in the second fixing plate 22; each pressing structure 6 comprises a connecting column 64, a pressing screw 65 and an elastic part 66, wherein the connecting column 64 is located in the accommodating cavity 23, the connecting column 64 is arranged on the first fixing plate 21, the pressing screw 65 comprises a head part 651 and a rod part 652, the head part 651 of the pressing screw 65 is movably arranged in the accommodating cavity 23, the rod part 652 of the pressing screw 65 penetrates through the through hole 221 and can be inserted into the cavity 3, one end of the elastic part 66 is sleeved on the connecting column 64, and the other end of the elastic part 66 abuts against the head part 651 of the pressing screw 65. Wherein the elastic member 66 may be a compression spring.
That is, after fixing the carbon plate on the first mold body 1, the first mold body 1 moves in the direction close to the second mold body 2, and when moving to the end of the hold-down screw 65 to abut against the surface of the carbon plate, the movement is stopped, and then the foaming material can be injected into the cavity 3, for example, the EPTU foaming material, ETPU is a foamed thermoplastic polyurethane elastomer, and the ETPU has excellent resilience and buffering performance by adopting a physical foaming technology, commonly called as "popcorn". Then, the foaming material is driven to foam by using the water vapor, and then, the first mold body 1 continues to move towards the direction close to the second mold body 2, at this time, the elastic piece 66 is compressed, and finally, the sole is formed after cooling. During demolding, the first mold body 1 moves in a direction away from the second mold body 2, and the elastic member 66 restores to its original state to drive the rod portion 652 of the compression screw 65 to move in the cavity 3, so as to drive the sole to be separated from the inner surface of the second mold body 2, thereby facilitating demolding.
In this example, after the sole is removed after demolding, the sole is removed from the compression screw 65, so that the sole has the mold forming hole 7, that is, the mold forming hole 7 corresponds to the original position on the compression screw 65, and the mold forming hole 7 enables the sole to have certain air permeability when in use.
In this example, as shown in fig. 5 and 7, a pair of soles can be simultaneously manufactured in the same mold, that is, the left and right carbon plates are placed in one mold, so that two soles are formed at one time, and the manufacturing efficiency is improved.
In order to facilitate the injection of the foaming material, in this example, the second mold body 2 is provided with a feed opening 24.
In some examples, the first mold body 1 is provided with a limiting groove 11, the second mold body 2 is provided with a limiting protrusion 25, and after the first mold body 1 is closed close to the second mold body 2, the limiting protrusion 25 is inserted into the limiting groove 11.
As shown in fig. 3, the second mold body 2 further includes a first connecting plate 26 and a second connecting plate 27, one side of the first connecting plate 26 is connected to the second fixing plate 22, the adjacent outer side of the first connecting plate 26 is connected to one end of the first fixing plate 21, and the end of the first connecting plate 26 forms the limiting protrusion 25; the second connecting plate 27 is arranged opposite to the first connecting plate 26, one side of the second connecting plate 27 is connected with the second fixing plate 22, the adjacent outer side of the second connecting plate 27 is connected with the other end of the first fixing plate 21, and the end part of the second connecting plate 27 forms the other limiting bulge 25.
In some examples, the second connecting plate 27 is provided with a sawtooth texture 271 and a first abutting inclined surface 272 on the inner side, the first abutting inclined surface 272 is located below the sawtooth texture 271, the first mold body 1 is provided with a sole texture 12 and a second abutting inclined surface 13, and after the first mold body 1 is closed to the second mold body 2, the second abutting inclined surface 13 abuts against the first abutting inclined surface 272.
The sawtooth lines 271 enable the upper portion of the heel of the manufactured sole to be provided with sawtooth shapes, so that the sole can be conveniently connected with the vamp, and the connection strength of the sole and the vamp is improved. And the sole lines 12 enable the bottom of the manufactured sole to have anti-skid lines, so that the anti-skid effect is improved, and the friction force is increased.
In this example, the positioning columns 51 corresponding to one carbon plate are set to be four, the front viewing angle of the carbon plate is arc-shaped, the front viewing angle is approximately X-shaped, wherein the two positioning columns 51 are located on the front two arms of the X-shaped, the two rear positioning columns 51 are located on the rear two arms of the X-shaped, and the two rear positioning columns 51 protrude out of the sole lines 12, so that the friction force of the formed sole is increased, and meanwhile, after demolding, due to the existence of the two rear positioning columns 51, the two mold forming holes 7 are formed in the anti-skid lines of the sole bottom, and the air permeability can be improved.
When the utility model is foamed and formed, the forming steps are as follows:
firstly, fixing a reinforcing plate 4 on a positioning structure 5 of a first die body 1;
step two, the first mold body 1 is initially close to the second mold body 2, and the distance between the first mold body 1 and the second mold body 2 is a discharging distance H;
injecting a foaming material into a cavity 3 formed by the first die body 1 and the second die body 2 through the feed port 24;
step four, heating by using water vapor to foam the foaming material in the cavity 3;
step five, the first mold body 1 is continuously close to the second mold body 2, the first mold body 1 is abutted against the second mold body 2, the volume of the cavity 3 is reduced, and adjacent foaming particles are fused with each other;
and step six, cooling by using cooling water, wherein the first mold body 1 is far away from the second mold body 2, and the manufactured sole is taken out.
When the sole is manufactured, the reinforcing plate 4 is fixed on the positioning column 51 of the first die body 1, the first die body 1 is close to the second die body 2, so that the end part of the compression screw 65 just abuts against the surface of the reinforcing plate 4, foam materials are injected into the cavity 3 formed by the first die body 1 and the second die body 2 through the feeding hole 24, the foam materials in the cavity 3 are foamed by steam heating, the first die body 1 continues to be close to the second die body 2, the limiting bulge 25 on the second die body 2 is driven to be inserted into the limiting groove 11 on the first die body 1, the volume of the cavity 3 is reduced, adjacent foam particles are fused with each other, cooling water is finally used, the second die body 2 is far away from the first die body 1, and the manufactured sole is taken out. Because when first die body 1 is close to second die body 2 in step two, the distance of first die body 1 and second die body 2 is blowing distance H, and first die body 1 continues to be close to second die body 2 in step five so that spacing arch 25 on the second die body 2 inserts spacing groove 11 on the first die body 1 for the material through vapor foaming continues the compression, makes expanded material fill cavity 3, and part parcel reinforcing plate 4, makes reinforcing plate 4 be difficult for droing in the sole after the preparation, and bulk strength is big.
In some examples, blowing distance H is 30mm to 35mm, through setting up the stroke that first die body 1 is close to second die body 2, in order to form blowing distance H, make hold-down screw 65's tip just support behind the carbon plate, first die body 1 stop motion, then can be through the interior ETPU expanded material of injecting of feed inlet 24 into cavity 3, when vapor ordered about expanded material foaming, first die body 1 continued to be close to second die body 2, so that expanded material further compresses, make the sole density of completion of making great, intensity is high, long service life. Through testing, when the discharging distance H is 30mm to 35mm, the foaming material is placed in the cavity 3, then the first mold body 1 is driven to be close to the second mold body 2, and the obtained sole is large in density and high in strength. When the discharging distance H is less than 30mm, the density is small, the strength is not enough, when the discharging distance H is more than 35mm, the performance is not good due to overlarge density, and meanwhile, a large amount of foaming materials are placed, and the cost is high.
The above embodiments and drawings are not intended to limit the form and style of the product of the present invention, and any suitable changes or modifications thereof by one of ordinary skill in the art should be considered as not departing from the scope of the present invention.
Claims (10)
1. A sole foaming forming die which is characterized in that: comprises a first die body and a second die body;
the first die body can be close to or far away from the second die body, a cavity for foaming forming is formed between the first die body and the second die body, and a positioning structure for positioning one surface of the reinforcing plate is arranged in the first die body; and a pressing structure used for pressing the other surface of the reinforcing plate is arranged in the second die body.
2. The foaming mold for shoe soles according to claim 1, characterized in that: the positioning structure comprises a plurality of positioning columns and a plurality of supporting and positioning blocks, and the positioning columns are distributed around the supporting and positioning blocks.
3. The foaming mold for shoe soles according to claim 2, characterized in that: the end part of the positioning column is provided with a positioning pin.
4. The foaming mold for shoe soles according to claim 2, characterized in that: the positioning column comprises a first positioning column used for positioning one end of the reinforcing plate and a second positioning column used for positioning the other end of the reinforcing plate.
5. The foaming mold for shoe soles according to claim 4, characterized in that: a first cavity is formed between the first positioning column and one side of the supporting and positioning block, and a second cavity is formed between the second positioning column and the other side of the supporting and positioning block.
6. The foaming mold for shoe soles according to claim 2, characterized in that: the end part of the supporting and positioning block is an arc-shaped surface which is used for being attached to the middle part of the reinforcing plate.
7. The foaming mold for shoe soles according to claim 6, characterized in that: the pressing structure comprises a first pressing structure, a second pressing structure and a middle pressing structure; the axial center line of the first compression structure is coincident with the axial center line of the first positioning column, the axial center line of the second compression structure is coincident with the axial center line of the second positioning column, and the middle compression structure corresponds to the arc-shaped surface of the supporting and positioning block.
8. The foaming mold for shoe soles according to claim 7, characterized in that: the second die body comprises a first fixing plate and a second fixing plate, an accommodating cavity is formed between the first fixing plate and the second fixing plate, and a through hole is formed in the second fixing plate; each hold-down structure includes spliced pole, compression screw and elastic component, and the spliced pole is located and holds the intracavity, and the spliced pole setting is on first fixed plate, and compression screw includes head and pole portion, and the movable setting of head of compression screw is holding the intracavity, and the pole portion of compression screw passes the through-hole and can insert the cavity, and elastic component one end cup joints on the spliced pole, and the elastic component other end supports and leans on at the head of compression screw.
9. The foaming mold for shoe soles according to claim 1, characterized in that: the second die body is provided with a feeding hole.
10. The foaming mold for shoe soles according to claim 1, characterized in that: a limiting groove is formed in the first die body, a limiting protrusion is arranged on the second die body, and after the first die body is close to the second die body and the die is closed, the limiting protrusion is inserted into the limiting groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122992638.6U CN216860383U (en) | 2021-12-01 | 2021-12-01 | Sole foaming forming die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122992638.6U CN216860383U (en) | 2021-12-01 | 2021-12-01 | Sole foaming forming die |
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| Publication Number | Publication Date |
|---|---|
| CN216860383U true CN216860383U (en) | 2022-07-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122992638.6U Active CN216860383U (en) | 2021-12-01 | 2021-12-01 | Sole foaming forming die |
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| CN (1) | CN216860383U (en) |
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2021
- 2021-12-01 CN CN202122992638.6U patent/CN216860383U/en active Active
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