A kind of safety shoe sole production equipment and production process

Abstract

The present invention discloses a safety shoe sole production equipment and a production process thereof, which belongs to the field of sole production and processing technology, and solves the problem that the existing safety shoe sole needs to be improved so that it can have the effects of anti-puncture, long service life and light texture. It includes a rotating disk, a plurality of molding molds evenly spaced on the rotating disk, an extruder arranged on one side of the rotating disk, and a lower output mold connected to the feed port of the extruder. When the present invention is working, the rotating disk rotates, the operator puts the Kevlar insole into the concave mold groove of the lower mold, the molds are closed to form a shoe mold cavity, the upper and lower output molds are displaced, and the injection molding of the shoe mold cavity is completed. After the molding mold rotates one circle, the vertical cylinder drives the upper mold to move up, inserts the upper into the sole hemming, and makes the side middle mold and the lower mold clamp the sole and the upper, and the extruder outputs molten PU to complete the connection between the upper and the sole, so as to obtain safety shoes with high connection strength and long service life.

Description

Technical Field

[0001] The present invention relates to the technical field of sole production and processing, and in particular to a safety shoe sole production device and a production process thereof. Background Art

[0002] Security shoes are also called labor shoes. Labor shoes are protective shoes designed for industrial environments and special work scenarios. It has multiple functions to ensure the safety and comfort of the wearer at work. First of all, the soles of labor shoes are usually made of wear-resistant and non-slip materials, such as rubber or polyurethane, which can effectively prevent slipping, especially on wet or oily floors. The toe part is often reinforced and made of steel or composite materials to resist heavy objects and protect the toes from injury. In addition, some labor shoes also have anti-puncture functions, and the midsole has a protective plate to prevent sharp objects from penetrating. The upper material with good air permeability, such as mesh cloth or breathable leather, helps keep the feet dry. The design of labor shoes focuses on ergonomics, and the insole has good support and cushioning properties to reduce fatigue caused by long-term walking or standing. Whether it is construction workers, machine operators or logistics warehouse personnel, labor shoes are indispensable protective equipment in their work, providing workers with all-round foot protection.

[0003] The soles of labor protection shoes are actually made of PU material. During actual production, the factory will complete the production of the upper part, and then use the sole machine to complete the production of the sole first, and then press the upper onto the sole, and then inject molten PU material to make the sole and the upper be fixed together through a circle of solidified PU material on the edge, and it is not easy to separate.

[0004] The soles of the safety shoes produced in this way are injection-molded soles of PU material, which do not have the anti-puncture function. The anti-puncture function of the safety shoes is mainly achieved by the Kevlar anti-puncture fabric pad sewn on the bottom of the upper. When the safety shoes are used in actual situations, after the soles of the safety shoes are punctured, sharp objects will pass through the soles and hit the Kevlar anti-puncture fabric pad, directly acting on the soles of the user's feet, causing the user to feel pain.

[0005] The main reason for the above problems is that the soles of the safety shoes themselves do not have additional anti-puncture functions except for the material. Therefore, the soles of the safety shoes cannot effectively block sharp objects on the ground in the environment in advance.

[0006] Of course, in order to solve this problem in the prior art, the sole is also composited to divide the conventional PU material of the safety shoe sole into two layers, and a steel plate is added between the two layers for bonding and fixing, so that the safety shoe sole can have a strong anti-puncture effect. However, while the weight of such a safety shoe sole is increased, it is different from the PU material of the safety shoe sole, and the bonding strength between the two is weak due to the heterogeneous interface. Therefore, although such a safety shoe sole can have an anti-puncture effect, its connection strength is poor, which leads to the service life of such a safety shoe sole being inferior to that of the conventional safety shoe sole.

[0007] Therefore, it is currently necessary to improve the existing production equipment of security shoe soles so that it can produce security shoe soles that are puncture-proof, have a long service life, and are light in texture.

[0008] Therefore, a safety shoe sole production device is proposed to solve or alleviate the above problems. Summary of the invention

[0009] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a safety shoe sole production device and a production process thereof.

[0010] In order to achieve the above object, the present invention adopts the following technical solutions:

[0011] A safety shoe sole production device comprises a rotating turntable, a plurality of molding dies evenly spaced on the turntable, an extruder arranged on one side of the turntable, a lower output die connected to a feeding port of the extruder, and an upper output die connected to the lower output die, wherein the upper output die and the lower output die are adjustable in distance relative to the extruder, the upper output die and the lower output die are connected in a single manner, and the lower output die is connected before the upper output die in a single operation, the molding die can be closed to form a shoe mold cavity, and a lower input channel connected to the shoe mold cavity and can be turned on and off is present at the bottom of the molding die, A lateral input channel connected to the shoe mold cavity and capable of being switched on and off is provided on the side wall of the molding mold, the lower input channel can be connected to the lower output mold, and the lateral input channel can be connected to the upper output mold. A Kevlar insole having a cross-sectional area smaller than that of the shoe mold cavity and having a similar pattern to the shoe mold cavity can be placed in the shoe mold cavity. During a single operation, after the lower output mold is connected to the lower input channel, 0.3-0.6 times the volume of the shoe mold cavity of molten PU is injected into the shoe mold cavity to float the Kevlar insole, and then, after the upper output mold is connected to the lateral input channel, molten PU is injected into the shoe mold cavity to fill the shoe mold cavity.

[0012] Preferably, the molding mold includes a lower mold, an upper mold that can be vertically displaced, and two side intermediate molds that can be horizontally displaced on both sides of the width direction of the lower mold. The top surface of the lower mold is provided with a die groove, and the bottom surface of the upper mold is fixedly connected with a punch, and a shoe mold cavity is formed between the punch, the die groove, and the two side intermediate molds. The bottom surface of the lower mold is provided with a vertical channel connected to the shoe mold cavity, and the bottom surface of the lower mold is provided with an input mold that can be displaced along the length direction of the lower mold and can self-reset. A bottom input flow channel that runs through its top surface is provided on the end surface of the input mold, and the vertical channel and the bottom input flow channel form a lower input channel that can be opened and closed. A splicing input flow channel that connects its inner circle and the outside world is provided on the cross-sections of the two side intermediate molds facing each other, and the two splicing input flow channels form a side input channel, and the outer circle of the punch is fixedly connected with a convex column mold that can enter the outlet of the splicing input flow channel.

[0013] Preferably, the molding mold also includes two side frame shells fixedly connected to the turntable, the side middle mold is slidably connected in the side frame shells, and the inner wall of the side frame shells is sealed with the outer ring of the side middle mold, the side frame shells are connected to an air pump through an air pipe, the two side frame shells and the end of the lower mold away from the outer ring of the turntable are commonly fixedly connected with a connecting plate, a limit plate located below the input mold is fixedly connected to the top surface of the turntable, a lower protrusion is fixedly connected to the bottom of one end of the input mold facing the outer ring of the turntable, a plurality of grooves are provided on the side of the lower protrusion facing the limit plate, a columnar elastic member that can undergo elastic deformation along the depth direction of the groove is fixedly connected in the groove, and the columnar elastic member accumulates elastic potential energy and then releases it to control the self-reset of the input mold.

[0014] Preferably, a limiting slide groove located below the lower mold is provided on one side of the two side intermediate molds facing each other, and limiting sliders slidably connected in the limiting slide groove are fixedly connected to both sides of the input mold in the width direction.

[0015] Preferably, a drainage channel penetrating to the bottom surface of the lower mold is provided on the end surface of the lower mold, and when the end surface of the input mold is flush with the end surface of the lower mold, the drainage channel is connected to the bottom input channel.

[0016] Preferably, the molding mold also includes a plurality of support rods fixedly connected to the top surface of the side frame shell, a top plate fixedly connected to the upper ends of the plurality of support rods, and a vertical cylinder fixedly connected to the top plate, the piston rod of the vertical cylinder passes through the top plate and is fixedly connected to a connecting seat, and the connecting seat is fixedly connected to the top surface of the upper mold.

[0017] Preferably, the lower output mold is provided with a lower conveying flow channel running through it along its length direction, and the lower conveying flow channel can be opened and closed, and the top surface of the lower output mold is provided with a vertical connecting channel connected to the lower conveying flow channel, a feeding pipe is slidably connected in the feeding port of the extruder, the feeding pipe is fixedly connected to the lower output mold, and the feeding pipe is connected to the lower conveying flow channel, and the bottom surface of the upper output mold is provided with a vertically arranged vertical flow channel, and the upper end of the vertical flow channel is connected to a horizontal flow channel running through the end face of the upper output mold, and the vertical flow channel can be connected to the vertical connecting channel, and a horizontally arranged first horizontal cylinder group and a second horizontal cylinder group located below the first horizontal cylinder group are fixedly connected on both sides of the extruder, the piston rod of the first horizontal cylinder group is fixedly connected to the side wall of the upper output mold through an upper mounting seat, and the piston rod of the second horizontal cylinder group is fixedly connected to the side wall of the lower output mold through a lower mounting seat.

[0018] Preferably, a vertical through groove connected to the lower conveying flow channel and located between the vertical connecting channel and the outlet of the lower conveying flow channel is formed on the top surface of the lower output mold, a lower recessed groove connected to the lower conveying flow channel and arranged opposite to the vertical through groove is formed in the lower output mold, a spring is fixedly connected to the inner bottom surface of the lower recessed groove, an adjusting block is slidably connected in the lower recessed groove and the vertical through groove, the top surface of the adjusting block is a spherical arc surface, a through hole connected to the lower conveying flow channel is formed on the end surface of the adjusting block, and the cross section of the adjusting block located below the through hole can cover the The cross-sectional setting of the through hole is that the bottom surface of the upper output mold is provided with an upper recessed groove which is recessed upward and located between the vertical flow channel and the horizontal flow channel outlet, and the upper recessed groove is provided with an inclined guide slope on the side facing the vertical flow channel. When the lower output mold is conductive, the through hole is coaxially arranged with the lower conveying through groove and the vertical connecting channel is staggered with the vertical flow channel. When the upper output mold is conductive, the adjustment block is embedded in the upper recessed groove, the adjustment block blocks the lower conveying flow channel, and the vertical connecting channel is coaxially connected with the vertical flow channel.

[0019] Preferably, it also includes a base and a support platform, the base is fixedly connected to a reduction motor, the turntable is coaxially fixedly connected to the output shaft of the reduction motor, the support platform is arranged on one side of the base, and the extruder is fixedly connected to the support platform.

[0020] The present invention also provides a production process for the soles of security shoes, comprising the following steps:

[0021] Manually insert the Kevlar insole into the molding die;

[0022] Control the molding die to close the mold and move it to the location of the extruder;

[0023] The extruder controls the lower output die and the upper output die to sequentially inject the molten PU from bottom to top and from top to bottom into the molding die, and wait for solidification;

[0024] Switch the workstation to the molding die, where the molten PU solidifies to form a shoe sole with hemming;

[0025] The forming mold is separated, and then the upper is inserted into the sole with the hemming, and the forming mold is closed again except for the upper mold;

[0026] The extruder controls the upper output mold to inject molten PU between the upper, the sole hem, and the inner bottom of the sole into the mold after the mold is closed, and waits for solidification to obtain a finished sole and a finished shoe.

[0027] The present invention has the following beneficial effects:

[0028] When the present invention is working, the turntable rotates, the operator puts the Kevlar insole into the concave die groove of the lower mold, the molds are closed to form a shoe mold cavity, the upper and lower output molds are displaced, and the injection molding of the shoe mold cavity is completed. After the molding mold rotates one circle, the vertical cylinder drives the upper mold to move upward, the upper is inserted into the sole hemming, the side middle mold and the lower mold clamp the sole and the upper, the extruder outputs molten PU, the connection between the upper and the sole is completed, and the security shoe sole and the security shoe with high connection strength and long service life are obtained. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0030] Figure 1 It is a structural schematic diagram of the present invention;

[0031] Figure 2 The structure of the molding die in the present invention is schematically shown in FIG. Figure 1 ;

[0032] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0033] Figure 4 The structure of the molding die in the present invention is schematically shown in FIG. Figure 2 ;

[0034] Figure 5 for Figure 4 The enlarged view of point B in the middle;

[0035] Figure 6 The structure of the molding die in the present invention is schematically shown in FIG. Figure 3 ;

[0036] Figure 7 for Figure 6 Enlarged view of point C in the middle;

[0037] Figure 8 The structure of the molding die in the present invention is schematically shown in FIG. Figure 4 ;

[0038] Fig. 9 for Figure 8 The enlarged view of point D in the middle;

[0039] Fig.10 for Figure 8 Enlarged view of point E in the middle;

[0040] Fig.11 It is a cross-sectional view of the upper mold, the lower mold, the side middle mold, and the input mold in the present invention;

[0041] Fig.12 for Fig.11 The enlarged view of F in the middle;

[0042] Fig.13 The cross-sectional view of the upper output mold and the lower output mold in the present invention Figure 1 ;

[0043] Fig.14 for Fig.13 Enlarged view of G in the middle;

[0044] Fig.15 The cross-sectional view of the upper output mold and the lower output mold in the present invention Figure 2 ;

[0045] Fig.16 for Fig.15 Enlarged view of point H in the middle.

[0046] 1. Base; 2. Turntable; 3. Forming mold; 301. Side frame shell; 302. Support rod; 303. Top plate; 304. Vertical cylinder; 3041. Connecting seat; 305. Connecting plate; 306. Lower mold; 3061. Drain channel; 3062. Concave mold groove; 3063. Vertical channel; 307. Side middle mold; 3071. Splicing input flow channel; 3072. Limiting slide groove; 308. Upper mold; 3081. Punch mold; 3082. Convex column mold; 309. Input mold; 3 091, bottom input channel; 3092, limit slider; 310, lower protrusion; 31001, groove; 311, columnar elastic member; 4, support platform; 5, extruder; 6, lower output die; 601, lower conveying channel; 602, vertical connecting channel; 603, vertical through groove; 604, lower recessed groove; 605, spring; 606, adjustment block; 607, through hole; 7, upper output die; 701, vertical flow channel; 702, horizontal flow channel; 703, upper recessed groove; 704, guide ramp. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0048] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0050] In the description of the present invention, it should be understood that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the product of the invention is conventionally placed when in use, or are the orientations or positional relationships conventionally understood by those skilled in the art. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0051] Furthermore, the terms “first”, “second”, “third”, etc. are merely used for distinguishing descriptions and are not to be understood as indicating or implying relative importance.

[0052] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0053] A safety shoe sole production device, such as Figure 1 As shown, it includes a base 1, a support platform 4, a rotatable turntable 2, a plurality of molding molds 3 evenly spaced apart on the turntable 2, an extruder 5 arranged at one side of the turntable 2, a lower output mold 6 connected to a feeding port of the extruder 5, and an upper output mold 7 which can be connected to the lower output mold 6. A reduction motor is fixedly connected to the base 1, the turntable 2 is coaxially fixedly connected to the output shaft of the reduction motor, the support platform 4 is arranged at one side of the base 1, and the extruder 5 is fixedly connected to the support platform 4.

[0054] The distance between the upper output die 7 and the lower output die 6 relative to the extruder 5 can be adjusted, and the upper output die 7 and the lower output die 6 are set to be connected in a single manner, and the lower output die 6 is connected before the upper output die 7 during a single operation. Specifically, Figures 13 to 16 As shown,

[0055] The lower output die 6 is provided with a lower conveying channel 601 which runs through the lower output die 6 along its length direction, and the lower conveying channel 601 can be set on and off. A vertical connecting channel 602 which is connected to the lower conveying channel 601 is provided on the top surface of the lower output die 6. A feeding pipe is slidably connected in the feeding port of the extruder 5, and the feeding pipe is fixedly connected to the lower output die 6, and the feeding pipe is connected to the lower conveying channel 601. A vertically arranged vertical direct flow channel 701 is provided on the bottom surface of the upper output die 7, and the upper end of the vertical direct flow channel 701 is connected to a horizontal flow channel 702 which runs through the end surface of the upper output die 7, and the vertical direct flow channel 701 can be connected to the vertical connecting channel 602. A horizontally arranged first horizontal cylinder group and a second horizontal cylinder group located below the first horizontal cylinder group are fixedly connected on both sides of the extruder 5. The piston rod of the first horizontal cylinder group is fixedly connected to the side wall of the upper output die 7 through the upper mounting seat, and the piston rod of the second horizontal cylinder group is fixedly connected to the side wall of the lower output die 6 through the lower mounting seat.

[0056] The top surface of the lower output mold 6 is provided with a vertical through groove 603 which is connected with the lower conveying flow channel 601 and is located between the vertical connecting channel 602 and the outlet of the lower conveying flow channel 601. The lower output mold 6 is provided with a lower recessed groove 604 which is connected with the lower conveying flow channel 601 and is arranged opposite to the vertical through groove 603. The inner bottom surface of the lower recessed groove 604 is fixedly connected with a spring 605. The lower recessed groove 604 and the vertical through groove 603 are slidably connected with an adjustment block 606. The top surface of the adjustment block 606 is a spherical arc surface. The end surface of the adjustment block 606 is provided with a through hole 607 which is connected with the lower conveying flow channel 601. The cross section of the adjustment block 606 located below the through hole 607 can be The cross-section setting of the covering through hole 607 is provided, and the bottom surface of the upper output mold 7 is provided with an upper recessed groove 703 which is recessed upward and located between the outlets of the vertical flow channel 701 and the horizontal flow channel 702. The upper recessed groove 703 is provided with an inclined guide slope 704 on the side facing the vertical flow channel 701. When the lower output mold 6 is conductive, the through hole 607 is coaxially arranged with the lower conveying through groove, and the vertical connecting channel 602 is staggered with the vertical flow channel 701. When the upper output mold 7 is conductive, the adjustment block 606 is embedded in the upper recessed groove 703, the adjustment block 606 blocks the lower conveying flow channel 601, and the vertical connecting channel 602 is coaxially connected with the vertical flow channel 701.

[0057] like Fig.11 and Fig.12 As shown, the molding mold 3 can be closed to form a shoe mold cavity, and there is a lower input channel at the bottom of the molding mold 3 that is connected to the shoe mold cavity and can be turned on and off. A side input channel that is connected to the shoe mold cavity and can be turned on and off is opened on the side wall of the molding mold 3. The lower input channel can be connected to the lower output mold 6, and the side input channel can be connected to the upper output mold 7. A Kevlar insole with a cross-sectional area smaller than that of the shoe mold cavity and a similar pattern to the shoe mold cavity can be placed in the shoe mold cavity. During a single operation, the lower output mold 6 is connected to the lower input channel, and 0.3-0.6 times the volume of the shoe mold cavity is injected into the shoe mold cavity. Molten PU is injected into the shoe mold cavity to float the Kevlar insole, and then the upper output mold 7 is connected to the side input channel and molten PU is injected into the shoe mold cavity to fill the shoe mold cavity.

[0058] like Figures 2 to 10As shown, the molding die 3 includes a lower die 306, an upper die 308 that can be vertically displaced, and two side intermediate dies 307 that can be horizontally displaced on both sides of the lower die 306 in the width direction. The top surface of the lower die 306 is provided with a die groove 3062, and the bottom surface of the upper die 308 is fixedly connected with a punch 3081. A shoe mold cavity is formed between the punch 3081, the die groove 3062, and the two side intermediate dies 307. The bottom surface of the lower die 306 is provided with a vertical channel 3063 that is connected to the shoe mold cavity. The bottom surface of the lower die 306 is provided with a groove that can be moved along the length of the lower die 306. The input mold 309 is displaceable and self-resetting, and a bottom input channel 3091 is provided on the end face of the input mold 309 and runs through the top surface thereof. The vertical channel 3063 and the bottom input channel 3091 form a lower input channel which can be opened and closed. A spliced ​​input channel 3071 connecting the inner circle and the outside is provided on the sections facing each other of the two side middle molds 307. The two spliced ​​input channels 3071 form a side input channel, and the outer circle of the punch 3081 is fixedly connected to a convex column mold 3082 which can enter the outlet of the spliced ​​input channel 3071.

[0059] The molding die 3 also includes two side frame shells 301 fixedly connected to the turntable 2, the side middle mold 307 is slidably connected in the side frame shells 301, and the inner wall of the side frame shell 301 is sealed with the outer ring of the side middle mold 307, the side frame shell 301 is connected to the air pump through the air pipe, the two side frame shells 301, and the end of the lower mold 306 away from the outer ring of the turntable 2 are fixedly connected with a connecting plate 305, the top surface of the turntable 2 is fixedly connected with a limit plate located below the input mold 309, the bottom of the end of the input mold 309 facing the outer ring of the turntable 2 is fixedly connected with a lower protrusion 310, and the lower protrusion 310 is provided with a plurality of grooves 31001 on the side facing the limit plate, and the grooves 31001 A columnar elastic part 311 which can undergo elastic deformation along the depth direction of the groove 31001 is fixedly connected inside, and the columnar elastic part 311 accumulates elastic potential energy and then releases it to control the self-reset of the input mold 309. A limiting slide groove 3072 located below the lower mold 306 is provided on the side facing each other of the two side middle molds 307. Limiting sliders 3092 which can be slidably connected in the limiting slide groove 3072 are fixedly connected on both sides in the width direction of the input mold 309. A drainage channel 3061 which runs through the bottom surface thereof is provided on the end surface of the lower mold 306. When the end surface of the input mold 309 is flush with the end surface of the lower mold 306, the drainage channel 3061 is connected to the bottom input channel.

[0060] The molding mold 3 also includes a plurality of support rods 302 fixedly connected to the top surface of the side frame shell 301, a top plate 303 fixedly connected to the upper ends of the plurality of support rods 302, and a vertical cylinder 304 fixedly connected to the top plate 303. The piston rod of the vertical cylinder 304 passes through the top plate 303 and is fixedly connected to a connecting seat 3041. The connecting seat 3041 is fixedly connected to the top surface of the upper mold 308.

[0061] The present invention also provides a production process for the soles of security shoes, comprising the following steps:

[0062] Manually insert the Kevlar insole into the molding die 3;

[0063] Control the molding die 3 to close the mold and move to the position of the extruder 5;

[0064] The extruder 5 controls the lower output die 6 and the upper output die 7 to sequentially inject the molten PU from bottom to top and from top to bottom into the molding die 3, and wait for solidification;

[0065] Switching the workstation to the forming mold 3, the molten PU solidifies to form a shoe sole with hemming;

[0066] The forming mold 3 is separated, and then the upper is inserted into the sole with the hemming, and the forming mold 3 is closed again except for the upper mold 308;

[0067] After the mold is closed, the upper output mold 7 is controlled by the extruder 5 to inject molten PU between the upper, the sole hem, and the inner bottom of the sole and wait for solidification to obtain a finished sole and a finished shoe.

[0068] In the actual working process of the present invention, the reducer motor drives the turntable 2 to rotate, and the angle of each rotation of the turntable 2 is the arc angle between adjacent forming molds 3, that is, 360° / the number of forming molds 3;

[0069] At the beginning of the production of the soles of security shoes, the operator manually puts a Kevlar insole with a cross-sectional area smaller than the cross-sectional area of ​​the shoe mold cavity and a similar pattern to the shoe mold cavity into the concave mold groove 3062 of the lower mold 306;

[0070] The upper mold 308 is driven downward by the piston rod of the vertical cylinder 304, so that the punch 3081 at the bottom of the upper mold 308 can be moved downward to the corresponding position above the lower mold 306, and then the air pump starts to work, so that the air pump can inflate the side frame shell 301, and the air pressure in the side frame shell 301 increases, so that under the influence of the air pressure, the side middle mold 307 can be horizontally displaced along the width direction of the lower mold 306, until the side middle molds 307 on both sides can be molded together, so that the upper mold 308 and the lower mold 306 are wrapped together, so that the shoe mold cavity is formed between the punch 3081, the die groove 3062, and the two side middle molds 307;

[0071] At this time, the first horizontal cylinder group and the second horizontal cylinder group can drive the upper output mold 7 and the lower output mold 6 to move together. The end face of the upper output mold 7 is stationary when it is in contact with the end face of the side middle mold 307. The end face of the lower output mold 6 is further displaced after being in contact with the end face of the input mold 309, so that the input mold 309 can be displaced between the bottom surface of the lower mold 306 and the side middle molds 307 on both sides, and under the guidance of the limiting slide groove 3072 and the limiting slider 3092, the input mold The displacement of the tool 309 is relatively stable. During this process, the columnar elastic member 311 on the lower protrusion 310 can contact the limit plate and undergo elastic deformation to accumulate elastic potential energy until the lower protrusion 310 can contact the end surface of the limit plate. At this time, one end of the bottom input channel 3091 on the input mold 309 is connected to the lower output channel of the lower output mold 6, and the other end of the bottom input channel 3091 can be connected to the vertical channel 3063. At this time, the extruder 5 starts to work and injects 0.3-0.The molten PU with 6 times the volume of the shoe mold cavity is used to float the Kevlar insole. At the same time, the vertical through groove 603 on the lower output mold 6 is staggered with the upper recessed groove 703 on the bottom surface of the upper output mold 7, so that the adjustment block 606 is still located in the lower conveying channel 601 and the lower recessed groove 604, that is, the through hole 607 remains in a coaxial connection with the lower conveying channel 601, and the vertical connecting channel 602 is staggered with the vertical straight channel 701, which makes the molten PU extruded from the extruder 5 can only be transported through the lower conveying channel 601 and cannot enter the upper conveying mold, and then the second horizontal air The cylinder group drives the lower output mold 6 to move until the end surface of the lower output mold 6 is flush with the end surface of the upper output mold 7. At this time, the lower output mold 6 no longer hinders the displacement of the input mold 309, and the columnar elastic member 311 can release elastic potential energy, so that the columnar elastic member 311 uses the limit plate as a force point to push the lower protrusion 310 and the input mold 309 to move in the opposite direction, so that the bottom input flow channel 3091 can be disconnected from the vertical channel 3063 again, and the input mold 309 can block the opening of the vertical channel 3063, thereby completing the disconnection movement of the lower input channel. The operation is performed to prevent the molten PU from flowing out through the vertical channel 3063, and when the end faces of the lower output mold 6 and the upper output mold 7 are flush, it means that the vertical through groove 603 on the lower output mold 6 can be connected with the upper concave groove 703 on the bottom surface of the upper output mold 7. At this time, the spring 605 releases its elastic potential energy, thereby pushing the adjustment block 606 into the upper concave groove 703. At this time, since the cross section of the adjustment block 606 located below the through hole 607 can cover the cross section of the through hole 607, the adjustment block 606 can block the lower conveying channel 601, so that the molten PU can only flow out according to the vertical channel 3063 of the lower output mold 6. The vertical connection channel 602, the vertical flow channel 701, and the horizontal flow channel 702 leave the upper conveying mold in sequence, so that the upper conveying mold can inject molten PU into the side input channel composed of the spliced ​​conveying flow channels, and when the molten PU is injected into the side input channel, the molten PU injected from bottom to top earlier has begun to solidify, which also floats the Kevlar insole and bonds it together. When the subsequent molten PU is injected into the shoe mold cavity again, the entire sole structure can be completely injection molded. At the same time, the sole can also contain the Kevlar insole, so that the sole can also have the function of anti-puncture.

[0072] Then the first horizontal cylinder group and the second horizontal cylinder group drive the upper conveying mold and the lower conveying mold back to their original positions, and the turntable 2 continues to rotate, driving the molding mold 3 to enter the next station. The operator at the next station can aim the muzzle of the high-pressure jet gun at the entrance of the drainage channel 3061 on the end surface of the lower mold 306, and then inject high-pressure gas, so that the gas can blow out the PU retained in the bottom input flow channel 3091, avoiding the PU solidification blockage in the bottom input flow channel 3091, so as to facilitate the operator to perform subsequent operations;

[0073] After the forming mold 3 rotates one circle, the air pump evacuates air so that the side middle mold 307 can move in the opposite direction, and the vertical cylinder 304 can move the upper mold 308 upward through its piston rod, and then the processed upper is inserted into the hemming of the sole. There is a certain space between the inner bottom surface of the sole and the bottom surface of the upper, and then the air pump is inflated again, so that the side middle mold 307 can cooperate with the lower mold 306 to clamp the sole and the upper. Due to the setting of the convex column mold 3082 on the convex mold 3081, a hole connected to the inner circle of the hemming is opened on the formed sole hemming, and the hole is connected to the splicing input flow channel 30 The outlet of 71 is coaxially arranged, and at this time, the upper output mold 7 and the lower output mold 6 are driven by the first cylinder group and the second cylinder group to the common position to the end surface fitting position of the side intermediate mold 307, so that the extruder 5 works to output molten PU, and the molten PU can enter the side input channel, holes, and between the sole and the upper through the upper output mold 7, so that the molten PU can fill the bottom surface of the upper and the inner bottom surface of the sole and complete the surface connection between the two, so that the final security shoes have better connection strength and longer service life, and damage is not recommended.

[0074] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A safety shoe sole production equipment, characterized in that: The invention comprises a rotating disk (2) arranged to rotate, a plurality of molding dies (3) arranged at even intervals on the rotating disk (2), an extruder (5) arranged on one side of the rotating disk (2), a lower output die (6) connected to a feeding port of the extruder (5), and an upper output die (7) arranged to be connected to the lower output die (6), wherein the distance between the upper output die (7) and the lower output die (6) relative to the extruder (5) can be adjusted, the upper output die (7) and the lower output die (6) are arranged to be connected in a single manner, and the lower output die (6) is connected with the upper output die (7) in a single operation, the molding die (3) can be closed to form a shoe mold cavity, and the bottom of the molding die (3) has a mold connected to the shoe mold cavity. The molding die (3) has a lower input channel which can be switched on and off, a side input channel which is connected to the shoe mold cavity and can be switched on and off is provided on the side wall of the molding die (3), the lower input channel can be connected to the lower output die (6), the side input channel can be connected to the upper output die (7), a Kevlar insole having a cross-sectional area smaller than that of the shoe mold cavity and having a similar pattern to the shoe mold cavity can be placed in the shoe mold cavity, during a single operation, the lower output die (6) is connected to the lower input channel, and 0.3-0.6 times the volume of the shoe mold cavity is injected into the shoe mold cavity to make the Kevlar insole float, and then the upper output die (7) is connected to the side input channel, and molten PU is injected into the shoe mold cavity to fill the shoe mold cavity.

2. The safety shoe sole production equipment according to claim 1, characterized in that: The molding die (3) comprises a lower die (306), an upper die (308) that can be vertically displaced, and two side intermediate dies (307) that can be horizontally displaced on both sides of the lower die (306) in the width direction. The top surface of the lower die (306) is provided with a die groove (3062). The bottom surface of the upper die (308) is fixedly connected with a punch (3081). A shoe mold cavity is formed between the punch (3081), the die groove (3062), and the two side intermediate dies (307). The bottom surface of the lower die (306) is provided with a vertical channel (3063) that is connected to the shoe mold cavity. The bottom surface of the lower die (306) is provided with a groove that can be moved along the lower die (306). 6) An input mold (309) that is displaceable in the length direction and can self-reset, wherein a bottom input channel (3091) that runs through the top surface of the input mold (309) is provided on the end surface thereof, the vertical channel (3063) and the bottom input channel (3091) form a lower input channel that can be opened and closed, and a splicing input channel (3071) that connects the inner circle and the outside is provided on the cross-sections of the two side intermediate molds (307) that face each other, the two splicing input channels (3071) form a side input channel, and the outer circle of the convex mold (3081) is fixedly connected to a convex column mold (3082) that can enter the outlet of the splicing input channel (3071).

3. The safety shoe sole production equipment according to claim 2, characterized in that: The molding die (3) further comprises two side frame shells (301) fixedly connected to the rotating disk (2); the side intermediate mold (307) is slidably connected inside the side frame shells (301); the inner wall of the side frame shells (301) and the outer ring of the side intermediate mold (307) are sealed; the side frame shells (301) are connected to an air pump via an air pipe; the two side frame shells (301) and an end of the lower mold (306) away from the outer ring of the rotating disk (2) are fixedly connected to a connecting plate (305); and the top surface of the rotating disk (2) is fixedly connected to the lower mold (306). A limit plate is connected to the bottom of the input mold (309); a lower protrusion (310) is fixedly connected to the bottom of one end of the input mold (309) facing the outer ring of the turntable (2); a plurality of grooves (31001) are formed on the side of the lower protrusion (310) facing the limit plate; a columnar elastic member (311) is fixedly connected in the groove (31001) and can be elastically deformed along the groove depth direction of the groove (31001); the columnar elastic member (311) accumulates elastic potential energy and then releases it to control the self-reset of the input mold (309).

4. The safety shoe sole production equipment according to claim 3, characterized in that: A limiting slide groove (3072) located below the lower mold (306) is provided on one side of the two side intermediate molds (307) facing each other, and limiting sliders (3092) that are slidably connected in the limiting slide groove (3072) are fixedly connected on both sides of the width direction of the input mold (309).

5. The safety shoe sole production equipment according to claim 3, characterized in that: A drainage channel (3061) is provided on the end surface of the lower mold (306) and extends through the bottom surface thereof. When the end surface of the input mold (309) is flush with the end surface of the lower mold (306), the drainage channel (3061) is connected to the bottom input flow channel (3091).

6. The safety shoe sole production equipment according to claim 3, characterized in that: The molding die (3) further comprises a plurality of support rods (302) fixedly connected to the top surface of the side frame shell (301), a top plate (303) fixedly connected to the upper ends of the plurality of support rods (302), and a vertical cylinder (304) fixedly connected to the top plate (303); a piston rod of the vertical cylinder (304) passes through the top plate (303) and is fixedly connected to a connecting seat (3041); and the connecting seat (3041) is fixedly connected to the top surface of the upper mold (308).

7. The safety shoe sole production equipment according to claim 1, characterized in that: The lower output die (6) is provided with a lower conveying channel (601) running through the lower output die (6) along its length direction, and the lower conveying channel (601) can be opened and closed. The top surface of the lower output die (6) is provided with a vertical connecting channel (602) connected to the lower conveying channel (601). A feeding pipe is slidably connected in the feeding port of the extruder (5), and the feeding pipe is fixedly connected to the lower output die (6), and the feeding pipe is connected to the lower conveying channel (601). The bottom surface of the upper output die (7) is provided with a vertically arranged vertical channel (701), and the vertical The upper end of the direct flow channel (701) is connected to a horizontal flow channel (702) penetrating the end surface of the upper output die (7); the vertical direct flow channel (701) can be connected to the vertical connecting channel (602); the two sides of the extruder (5) are fixedly connected to a horizontally arranged first horizontal cylinder group and a second horizontal cylinder group located below the first horizontal cylinder group; the piston rod of the first horizontal cylinder group is fixedly connected to the side wall of the upper output die (7) via an upper mounting seat, and the piston rod of the second horizontal cylinder group is fixedly connected to the side wall of the lower output die (6) via a lower mounting seat.

8. The safety shoe sole production equipment according to claim 7, characterized in that: The top surface of the lower output mold (6) is provided with a vertical through groove (603) which is in communication with the lower conveying flow channel (601) and is located between the vertical connecting channel (602) and the outlet of the lower conveying flow channel (601); the lower output mold (6) is provided with a lower recessed groove (604) which is in communication with the lower conveying flow channel (601) and is arranged opposite to the vertical through groove (603); the inner bottom surface of the lower recessed groove (604) is fixedly connected with a spring (605); the lower recessed groove (604) and the vertical through groove (603) are slidably connected with an adjustment block (606); the top surface of the adjustment block (606) is a spherical arc surface; the end surface of the adjustment block (606) is provided with a through hole (607) which is in communication with the lower conveying flow channel (601); and the cross section of the adjustment block (606) located below the through hole (607) can cover the through hole (607). The cross-sectional arrangement of the hole (607) is such that the bottom surface of the upper output mold (7) is provided with an upper recessed groove (703) which is recessed upward and is located between the outlets of the vertical flow channel (701) and the horizontal flow channel (702); the upper recessed groove (703) is provided with an inclined guiding slope (704) on one side facing the vertical flow channel (701); when the lower output mold (6) is conductive, the through hole (607) is coaxially arranged with the lower conveying flow channel (601), and the vertical connecting channel (602) and the vertical flow channel (701) are offset; when the upper output mold (7) is conductive, the regulating block (606) is embedded in the upper recessed groove (703), the regulating block (606) blocks the lower conveying flow channel (601), and the vertical connecting channel (602) and the vertical flow channel (701) are coaxially connected.

9. The safety shoe sole production equipment according to claim 1, characterized in that: It also comprises a base (1) and a support platform (4), wherein a reduction motor is fixedly connected to the base (1), the turntable (2) is coaxially fixedly connected to the output shaft of the reduction motor, the support platform (4) is arranged on one side of the base (1), and the extruder (5) is fixedly connected to the support platform (4).

10. A process for producing the soles of security shoes, using the equipment for producing the soles of security shoes as claimed in claim 8, characterized in that: The following steps are included: Manually inserting a Kevlar insole into the molding die (3); Controlling the molding die (3) to close the die and move it to the position where the extruder (5) is located; The extruder (5) controls the lower output die (6) and the upper output die (7) to sequentially inject the molten PU from bottom to top and from top to bottom into the molding die (3), and wait for solidification; Switching the workstation to the forming mold (3) to allow the molten PU to solidify and form a shoe sole with an edge wrapping; The forming mold (3) is separated, and then the upper is inserted into the sole with the hemmed edge, and the forming mold (3) is closed again except for the upper mold (308); The extruder (5) controls the upper output mold (7) in the molded molding mold (3) to inject molten PU between the upper, the sole hem, and the inner bottom of the sole and wait for solidification to obtain a finished sole and a finished shoe.

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