CN217137004U

CN217137004U - Spiral jet flow polyurethane upper-connected shoemaking device

Info

Publication number: CN217137004U
Application number: CN202121250324.2U
Authority: CN
Inventors: 霍建春; 刘英杰; 陈锋; 石麟
Original assignee: Jihua 3514 Leather and Footware Co Ltd
Current assignee: Jihua 3514 Leather and Footware Co Ltd
Priority date: 2021-06-06
Filing date: 2021-06-06
Publication date: 2022-08-09
Anticipated expiration: 2031-06-06

Abstract

The utility model discloses a spiral efflux polyurethane even helps shoemaking device, including base, die block device, left side mould and right side mould, still including the spiral fluidic device who is used for the spraying raw materials. The utility model discloses be convenient for quick replacement and clearance die block, the spiral fluidic device of being convenient for sprays the raw materials on the die block, can produce the special shoes boots that widen, the efflux is big, and the efflux conical surface edge orbit of formation washs, is applicable to the production of all shoes boots.

Description

Spiral jet flow polyurethane upper-connected shoemaking device

Technical Field

The utility model belongs to the technical field of shoemaking, a shoemaking device is related to, specifically speaking is a spiral efflux polyurethane even helps shoemaking device.

Background

In the process of manufacturing shoes, the sole and the upper are bonded together by glue, and when bonding, the sole and the upper are extruded and formed by die closing of the bottom die, the left side die and the right side die. However, in the prior art, when the left side mold and the right side mold are closed, the stroke of the left side mold and the right side mold is small due to the complex structure and the large occupied space of the adjusting device, the mountable shoes and the mold bases are narrow, the production requirements of widening special shoes and double-side-frame three-density shoes and boots cannot be met, and the production range is limited.

The bottom die in the prior art is fixed in mounting position, cannot move in position and only has one station, and the shoe and boot are injected and pressed on the station through the combination of the lifting device, the left side die and the right side die. The disadvantages of this approach are: 1) because the bottom die needs to be matched with the left die and the right die, the position space for mounting the bottom die is narrow due to the limitation of the strokes of the left die and the right die, and the precise operation of spraying in the cavity of the bottom die cannot be realized by utilizing a manipulator, so that the material on the sole is not uniformly sprayed, and the quality of the sole is influenced; 2) because the space is narrow, the bottom die cannot be replaced quickly, and time and labor are wasted; 3) some shoes and boots require that the upper surface of the shoes can not have air holes and only can exhaust from the bottom, so the mould can only be reversely arranged and injected for forming, and the air is discharged from the soles, however, the distance between the bottom mould and the left side mould and the right side mould is small, the shoe making mould can not be reversely arranged, and the production of the shoes and boots with the double-bottom mould and the mould reverse structure can not be satisfied.

Due to the defects of the shoe making device, the sole buckling process in the production of the cold-bonded shoes is as follows: painting lines on the bonding positions of the soles and the uppers by manual shoe upper opening drawing, brushing a treating agent on the bonding positions of the soles and the uppers, baking at 60 +/-5 ℃ in an oven, brushing glue on the soles and the uppers respectively after 6-8 minutes, baking at 60 +/-5 ℃ in the oven, brushing the glue and baking twice in the same step, then bonding the soles, laminating (the pressure is more than or equal to 0.5MPa, the laminating time is 10-12 seconds), supplementing the glue, and performing secondary laminating. The disadvantages of this way of making shoes are: 1) the production flow is complex, the requirement on technological parameters is high, the requirement on the operation level of workers is strict, and the stable glue brushing quality cannot be ensured and the sole is easy to glue when the operation is improper; 2) 8 processes are needed in the stage, wherein the labor investment of the glue brushing process is large, the working condition is poor, the staff loss is large, and the recruitment is difficult; 3) a longer glue brushing and bottom buckling assembly line is required to be matched with a multi-section drying oven and 2 pressing machines, so that the equipment investment is large, and a large amount of production land is occupied; 4) the glue used has serious pollution to the environment.

SUMMERY OF THE UTILITY MODEL

For solving exist among the prior art more than not enough, the utility model aims at providing a spiral efflux polyurethane is group shoemaking device even to reaching the die block and being convenient for remove, left side mould and right mould are convenient for adjust, can be to the purpose of the binder spraying of upper of a shoe and sole.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a spiral efflux polyurethane helps shoemaking device even, includes the base, locates the die block device on the base, locate the left side mould and the right side mould that are used for on the base with the die block compound die, its characterized in that: the spiral jet device is used for spraying raw materials;

the bottom die device comprises a lifting device fixedly arranged on a base and a bottom die used for placing soles, the base is connected with a guide shaft in a sliding mode, a track is fixedly arranged on the guide shaft, and the track moves up and down along the guide shaft through the lifting device; the slide block is connected in the track in a sliding manner, the bottom die is fixedly arranged on the slide block, a driving device for driving the slide block to move is fixedly arranged on the track, and a detection device for detecting the position of the slide block is further arranged on the track;

the left side die and the right side die are the same and symmetrically arranged and respectively comprise a fixed plate fixedly arranged on the base, a side die support slidably connected to the base and a side die bottom support fixedly arranged on the side die support, the side die support is slidably connected to the base through an adjusting device, and a cavity for introducing heat conduction oil is formed in the side die support;

the spiral jet device comprises a screw mixing mechanism, a feeding mechanism and a spiral gas path jet mechanism, wherein the feeding mechanism is used for feeding the polymer into the screw mixing mechanism, and the spiral gas path jet mechanism is used for ejecting the polymer mixed by the screw mixing mechanism; the spiral gas circuit jet mechanism comprises a beam gas circuit, a spiral gas circuit and a spiral jet plate arranged at the discharge port of the screw mixing mechanism; the spiral jet flow plate comprises a nozzle arranged in the center and a plurality of beam flow gas path holes which are circumferentially distributed by taking the nozzle as a circle center; a plurality of spiral air passage holes are annularly distributed on the inner side wall of the nozzle, and the spiral air passage holes are converged to the port of the nozzle; the beam air path hole is communicated with the beam air path, and the spiral air path hole is communicated with the spiral air path.

As the utility model discloses a injecte, drive arrangement is rodless cylinder, the mounting panel has set firmly on the track, rodless cylinder sets firmly on the mounting panel.

As the utility model discloses a further inject, detection device is equipped with three groups, a set of top of locating elevating gear, and other two sets of both sides of locating elevating gear respectively make the die block produce three removal station.

As another limitation of the present invention, the adjusting device includes a cylinder and a connecting rod assembly hinged to both ends of the cylinder, the connecting rod assembly includes a first connecting rod with one end hinged to the fixing plate and a second connecting rod with one end hinged to the side form bracket, and the other end of the first connecting rod and the other end of the second connecting rod form a hinge point hinged to the cylinder; the fixed plate is provided with an angle adjusting device for adjusting the opening angles of the first connecting rod and the second connecting rod; the angle adjusting device comprises a blocking piece arranged on the first connecting rod and an adjusting jackscrew in threaded connection with the fixing plate, and the adjusting jackscrew corresponds to the blocking piece in position and is used for adjusting the opening angle of the first connecting rod.

As a further limitation of the utility model, a plurality of spiral gas path holes are communicated with the outside through tapered holes at the discharge port of the nozzle; and the spiral angle of each spiral gas path hole is 30-90 degrees, and the inclination angle to the center of the discharge port of the nozzle is 15-60 degrees.

As a further limitation of the present invention, the screw mixing mechanism includes a screw cavity, a screw disposed in the screw cavity, a motor assembly for driving the screw to rotate around its axis, and a cylinder assembly for driving the screw to move back and forth along its axis; a flow guide column is arranged at the end part of the screw rod close to one end of the nozzle along the axis direction; the screw rod is the toper screw rod to, the tip diameter that the screw rod is close to nozzle one end is less than the diameter of nozzle port, and the cover is equipped with the cooling jacket that is used for the heat dissipation cooling on the screw rod chamber.

Since the technical scheme is adopted, compared with the prior art, the utility model, the beneficial effect who gains is:

(1) the bottom die of the utility model can slide on the track, so that the bottom die can be positioned at the die closing position of the left die and the right die and can not be positioned at the die closing position, when the bottom die is replaced or cleaned, the bottom die is moved to the outside convenient to operate without the blockage of the left die and the right die, the space is wider, and the replacement or cleaning of the bottom die is quicker and more convenient; meanwhile, the space is increased, so that the spiral jet device can spray the raw materials on the bottom die conveniently, and the spraying is quicker and more uniform; the bottom die is moved out of the die assembly position, the space height between the lifting device and the side die can be emptied to more than 160mm, a clamp can be mounted on the lifting device to fix the shoe tree, the shoe die is inverted and injection-molded, and the production of the bottom exhaust structure shoe is met;

the left side die and the right side die can be used for injecting and pressing shoes and boots with different sizes through the adjusting device, so that the strokes of the left side die and the right side die can be adjusted, special widened shoes and boots can be processed, different processing requirements are met, heat insulation liquid can be introduced into the die through a cavity in the side die support, the temperature of the die is controllable, a method for controlling the temperature through an external environment is changed, the temperature is controlled more accurately, and the occupied space is greatly reduced;

the spiral gas path jet mechanism is internally provided with a beam gas path and a spiral gas path, wherein the beam gas path blows cylindrical compressed air from a beam gas path hole of the spiral jet plate, so that the splashing and scattering of polymer particles at the edge of the spray amplitude can be limited; the spiral gas path blows out spiral compressed air from the spiral gas path hole of the spiral jet flow plate, and the mixed polymer is uniformly jetted to the surface of the solid in a spiral conical surface at a certain inclination angle in a spiral jet flow mode, so that the adhesion rate of the polymer can be improved, the impact force on the surface of the solid can be reduced, the solid cannot be displaced in the jetting process, and the product loss can be effectively avoided; on the other hand, the vertical-surface jet flow can be carried out on the concave-convex inner wall on the inner side of the solid in a spiral jet flow mode, so that wide-angle jet flow is realized, and the polymer particles can be comprehensively and uniformly sprayed to the non-planar part of the solid.

(2) The utility model controls the slider to move along the track by the rodless cylinder, and has simple structure, sensitive control and small occupied space; the back-and-forth movement of rodless cylinder can stimulate the die block to realize the removal of three positions of left, well, right, and the position of selecting the die block according to different situation can realize the production of ordinary shoes and boots, can divide twice injection moulding to the sole of two kinds of density through quick replacement die block again, realizes the production of two die structure shoes and boots, can also realize the production requirement of cage structure shoes through flip-chip shoe last, and the practicality is strong.

(3) The utility model discloses left side mould and right side mould utilize the connecting rod principle, realize the left side mould, the compound die of right side mould is adjusted, through the cylinder two-way drive connecting rod, moreover, the steam generator is simple in structure, the occupation space is small, through restricting the open angle of first connecting rod and second connecting rod and adjusting the stroke of left side mould and right side mould, can realize the regulation of great stroke in less space, make the stroke of left side mould and right side mould increase to 200mm from original 130mm, the width of die holder increases to 240mm from original 200mm in the compound die state, the die holder width increases, can process 200 ~ 240 mm's special shoes of widening, therefore, the clothes hanger is strong in practicability, convenient for adjustment, the processing range is no longer limited; the open angle of first connecting rod can be restricted to the regulation jackscrew, as long as will adjust the jackscrew precession or screw-out, can restrict the angle between first connecting rod and the second connecting rod, controls the biggest stroke, adjusts fast, convenient.

(4) The utility model discloses a spiral gas circuit hole is the direction of giving vent to anger of double angle in the spiral efflux board, including spiral direction and incline direction. Wherein, the spiral direction can generate spiral airflow, so that the polymer mixed by the screw cavity can be in a spiral shape; the inclination direction (inclining towards the center of the nozzle port) can enable the generated spiral air flow to be cohesive, and further enable the polymer to be ejected to shrink and converge towards the center;

the spiral gas path hole does not extend to the end face of the nozzle completely, but is matched with the conical hole at the port of the nozzle, so that the polymer with high viscosity after mixing can be effectively bound on the outer side wall of the guide post, the polymer to be sprayed is blown away into particles by compressed air more easily instead of forming an atomization state, the defect of generating bubbles can be avoided, and the texture of the coating can be effectively improved.

(5) The utility model discloses well screw rod closes on the tip diameter of nozzle one end and is less than the diameter of nozzle port, under the drive of cylinder subassembly, when screw rod and the abundant contact friction of screw rod intracavity wall, its tip can stretch out from the nozzle port, and then when the screw rod was clean to the screw rod chamber, also can realize the automatically cleaning to the nozzle.

(6) The utility model changes the original production process of low efficiency and environmental pollution of manual glue brushing, baking and bonding, the bottom die is moved out by a semi-automatic production mode, a spiral jet device is utilized to spray a multi-component polymer (polyurethane) on the sole, the polymer rapidly expands through chemical reaction, polyurethane molecular particles enter the upper and the sole in a diffusion and permeation mode in the reaction process, the shoe upper and the sole are firmly crosslinked together, so that the seepage force and the adhesion force are improved, the later-stage glue failure of the shoe is avoided, a plurality of glue brushing and baking processes are reduced, the labor force is saved, only one semi-automatic process is needed to complete, the vamp is not required to be treated, only the multi-component polymer jet flow is carried out on the sole, the multi-component polymer (polyurethane) is a material which is non-toxic and has no pungent smell, the environment is protected, and the working environment of workers is greatly improved;

(7) the utility model controls the density, speed and angle of the jet flow in the jet flow process, so that the multi-component polymer can be sprayed more uniformly, the adhesion rate is better, the impact force on the surface of the solid is greatly reduced, the solid can not be displaced in the spraying process, and the product loss can be effectively avoided;

(8) the utility model discloses let in 45 ~ 50 ℃ of conduction oil in the side forms support, make temperature control more accurate, and can increase the diffusion of multicomponent polymer, improve the adhesive force, make the difficult debonding of shoes boots of production, the quality improves greatly.

To sum up, the utility model discloses the position of die block is adjustable, the quick replacement and the clearance die block of being convenient for, remove the die block, increase operating space, the spiral fluidic device of being convenient for sprays the raw materials on the die block, three station can satisfy the production of different shoes boots, therefore, the clothes hanger is strong in practicability, occupation space is little, adjust the stroke big, the stroke is adjusted conveniently, can produce the special shoes boots that widen, can reduce and change the die holder number of times, the jet flow is big, the jet flow conical surface edge orbit of formation washs, can not produce the atomizing and splash and the clean and tidy reflection circumstances of particle, can guarantee to penetrate the territory, be applicable to the production of all shoes boots.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention;

fig. 2 is a schematic perspective view of a bottom mold 14 in an intermediate position according to an embodiment of the present invention;

fig. 3 is a schematic perspective view of the bottom mold 14 according to the embodiment of the present invention at a left position;

fig. 4 is a schematic perspective view of a bottom mold 14 according to an embodiment of the present invention at a right position;

fig. 5 is a schematic perspective view of the left side mold 2 and the right side mold 3 according to the embodiment of the present invention;

fig. 6 is a schematic diagram of the internal structure of the left side mold 2 and the right side mold 3 according to the embodiment of the present invention.

Fig. 7 is a schematic view of the overall structure of a spiral fluidic device according to an embodiment of the present invention;

fig. 8 is a schematic view (partially cut away) of the overall structure of the spiral fluidic device according to another embodiment of the present invention;

fig. 9 is a longitudinal sectional view showing the structure relationship of the spiral gas path fluidic mechanism 20 according to the embodiment of the present invention;

fig. 10 is a schematic structural relationship diagram of the spiral jet plate 30 according to an embodiment of the present invention.

In the figure: 1-base, 2-left side die, 3-right side die, 4-fixed plate, 5-side die support, 6-side die base, 7-adjusting device, 71-cylinder, 72-first connecting rod, 73-second connecting rod, 8-angle adjusting device, 81-adjusting jackscrew, 82-baffle, 9-side die backing plate, 10-lifting cylinder, 11-guide shaft, 12-track, 13-slide block, 14-bottom die, 15-mounting plate, 16-rodless cylinder, 17-vertical plate, 18-screw mixing mechanism, 19-feeding mechanism, 20-spiral gas path jet mechanism, 21-screw cavity, 22-screw, 23-motor component, 24-cylinder component, 25-cooling jacket, 26-cooling water inlet, 27-a cooling water outlet, 28-a beam gas path, 29-a spiral gas path, 30-a spiral flow plate, 31-a beam gas path hole, 32-a spiral gas path hole, 33-a conical hole, 34-a flow guide column and 35-a six-axis robot.

Detailed Description

The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It is to be understood that the preferred embodiments described herein are for purposes of illustration and understanding only and are not intended to limit the invention.

Example spiral jet polyurethane shoe-making device with upper

Embodiment is shown in fig. 1, a spiral jet flow polyurethane shoe making device with upper comprises a base, a bottom die device arranged on the base, a left die 2 and a right die 3 which are arranged on the base and used for being matched with the bottom die device, and a spiral jet flow device used for spraying raw materials into a sole. The bottom die device is used for placing soles, the spiral jet device is used for spraying raw materials for bonding uppers and soles on the soles, the left side die 2 and the right side die 3 are used for injecting and pressing uppers on shoe lasts and are matched with the bottom die device to bond the uppers and the soles together.

First, bottom die device

As shown in fig. 2-4, the bottom die device includes a base 1 and a lifting device fixedly disposed on the base 1, the lifting device is a lifting cylinder 10, and the base 1 is provided with a through hole for the telescopic rod of the lifting cylinder 10 to pass through.

This embodiment still includes two tracks 12, all is equipped with the recess on two tracks 12, and during two tracks 12 of fixed, the recess sets up relatively, and equal sliding connection has slider 13 in two tracks 12, slider 13 and track 12's recess cooperation. A bottom die 14 for placing the sole is fixedly arranged on the sliding block 13, and the bottom die 14 moves in the track 12 along with the sliding block 13. The driving device for driving the sliding block 13 to move is fixedly arranged on the rail 12 and is a rodless cylinder 16, in order to facilitate installation of the rodless cylinder 16, an installation plate 15 is fixedly arranged between the two rails 12, the two rails 12 are connected together through the installation plate 15, a cylinder body of the rodless cylinder 16 is fixedly arranged on the installation plate 15, a piston rod of the rodless cylinder 16 is fixedly connected with the sliding block 13 through a vertical plate 17, and a bottom die 14 on the sliding block 13 is driven to move along the rail 12.

The lifting device is used for driving the two rails 12 to move up and down, two guide shafts 11 are fixedly arranged on each rail 12, four through holes for the guide shafts 11 to pass through are formed in the base 1, and the guide shafts 11 are connected to the base 1 in a sliding mode. The telescopic rod of the lifting cylinder 10 is positioned in the middle of the four guide shafts 11, and the telescopic rod of the lifting cylinder 10 is pushed against the bottom die 14 in a telescopic mode, so that the rail 12, the slider 13, the mounting plate 15 and the rodless cylinder 16 are lifted together and are matched with the left die and the right die.

The bottom die 14 can move on the rail 12, and the bottom die 14 is provided with three stations on the rail 12 according to the processing requirement. In order to stop the bottom die 14 at three required stations, three sets of detection devices are arranged on the rail 12, one set is arranged above the lifting cylinder 10, the other two sets are respectively arranged at two sides of the lifting cylinder 10, so that the base 1 generates three moving stations, and the detection devices are infrared sensors or photoelectric sensors. As shown in fig. 2, the intermediate station: the device is characterized in that the device is a mold closing station above a lifting cylinder 10, a group of detection devices are arranged at the position, when a bottom mold 14 moves to the position above the lifting cylinder 10, the movement is stopped, a telescopic rod of the lifting cylinder 10 extends out to be propped against the bottom mold 14, and the rail 12, a sliding block 13, a mounting plate 15 and a rodless cylinder 16 are driven to lift together to realize mold closing with a left mold and a right mold. As shown in fig. 3, left-hand station: the sole is before gluing with the upper of a shoe, need spraying raw materials on the sole, forms double bottom sole, because die block 14 is when the compound die position, the injecing of left side mould and right side mould stroke, its space is less, can not satisfy the spraying operation of manipulator, consequently, moves die block 14 to left position through rodless cylinder 16, makes the left and right sides of die block 14 all not block, the operation of the manipulator of being convenient for. As shown in fig. 4, right-hand station: for the shoes and boots only capable of exhausting from the bottom, the mold is required to be inverted, injection molding is carried out, the bottom mold 14 is moved to a station on the right side, the height of a space which can be vacated below the left mold and the right mold reaches over 160mm, the lifting cylinder 10 can be provided with a clamp to fix a shoe tree, inverted injection molding is carried out on the shoe mold, and production of the shoes and boots with the bottom exhausting structure is met.

Second, left side die 2 and right side die 3

As shown in fig. 5 and 6, the left side mold 2 and the right side mold 3 are symmetrically disposed on two sides of the base 1, the left side mold 2 is used for injection molding of the left upper, the right side mold 3 is used for injection molding of the right upper, and the bottom mold 14 is located on two sides of the left side mold 2 and the right side mold 3 and used for mold matching with the left side mold 2 and the right side mold 3. Since the left and

right molds

2 and 3 have the same structure, the left mold 2 is taken as an example to describe the structure of the present embodiment. The left side die 2 comprises a fixing plate 4 fixedly arranged on a base 1, a side die support 5 connected to the base 1 in a sliding mode, and a side die base 6 fixedly arranged on the side die support 5, the fixing plate 4 is arranged at the edge of the base 1, the side die support 5 is connected to the base 1 in a sliding mode through an adjusting device 7, the side die support 5 and the fixing plate 4 are arranged oppositely, the side die base 6 can move towards the direction close to or away from the fixing plate 4 through the adjusting device 7, the side die base 6 is fixed to the side die support 5 and can move along with the side die support 5, and the side die base 6 is used for placing a die holder for pressing and injecting uppers.

The side die support 5 is internally provided with a cavity for introducing heat conduction oil, the side die support 5 is provided with an oil inlet and an oil outlet and used for introducing circulating heat conduction oil into the cavity of the side die support 5, so that the temperature of 45 degrees is provided for gluing the upper and the sole, and the gluing quality is ensured. The side form support 5 is detachably provided with a side form base plate 9, so that conditions are provided for processing widened special shoes. The base 1 is fixedly provided with a slide rail, and the side die support 5 and the side die base support 6 are respectively provided with a slide groove matched with the slide rail, so that the side die support 5 can move along the slide rail.

The adjusting device 7 comprises an air cylinder 71 and a connecting rod assembly hinged to two ends of the air cylinder 71, the air cylinder 71 and the connecting rod assembly are arranged between the fixing plate 4 and the side formwork support 5, and the fixing plate 4 is used as a supporting point to enable the side formwork support 5 to move. The connecting rod assemblies are provided with two groups, the two groups are respectively positioned at the front end and the rear end of the fixing plate 4 and the side formwork support 5, one group is hinged with the telescopic rod of the air cylinder 71, and the other group is hinged with the other end of the air cylinder 71, so that the side formwork support 5 can be parallel when moving. The connecting rod assembly comprises a first connecting rod 72 and a second connecting rod 73, one end of the first connecting rod is hinged to the fixing plate 4, one end of the second connecting rod 73 is hinged to the side die support 5, protruding blocks are arranged on the fixing plate 4 and the side die support 5, through holes are formed in the protruding blocks, and the first connecting rod 72 and the second connecting rod 73 are hinged to the protruding blocks through pin shafts. The second connecting rod 73 is H-shaped, so that the weight can be reduced, and the hinge strength can be increased. The other end of the first link 72 and the other end of the second link 73 are hinged together to form a hinge point and are hinged with the cylinder 71.

The fixed plate 4 is provided with an angle adjusting device 8 for adjusting the opening angles of the first connecting rod 72 and the second connecting rod 73. The first connecting rod 72 is fixedly provided with a blocking piece 82, the fixing plate 4 is in threaded connection with an adjusting jackscrew 81 for adjusting the opening angle of the first connecting rod 72, the adjusting jackscrew 81 corresponds to the blocking piece 82 in position, and during adjustment, the adjusting jackscrew 81 is screwed in or out to enable the adjusting jackscrew 81 to abut against the blocking piece 82 to prevent the first connecting rod 72 from straightening so as to adjust the maximum stroke.

Three, spiral fluidic device

As shown in fig. 7-10, the spiral jet device includes a screw mixing mechanism 18, a feeding mechanism 19 and a spiral gas path jet mechanism 20.

Screw mixing mechanism 18

The screw mixing mechanism 18 is used to mix and agitate the multi-component polymer to cause it to react well to form a high viscosity mixture. As shown in fig. 8, the screw mixing mechanism 18 includes a screw chamber 21, a screw 22, a motor assembly 23, and a cylinder assembly 24. Wherein, the screw 22 is arranged in the screw cavity 21 and is a conical screw 22, that is, the part of the screw 22 adjacent to the discharge port of the screw cavity 21 is in a conical structure. More specifically, the motor assembly 23 adopts a main shaft servo motor, the power output end is coaxially arranged with the screw rod 22 in a morse taper connection mode, the screw rod 22 and the motor assembly 23 adopt the morse taper connection mode, high-precision coaxiality between the screw rod 22 and the screw rod cavity 21 can be ensured, and the screw rod 22 can rotate around the axis thereof in the screw rod cavity 21 under the driving of the motor assembly 23 to mix and stir the multi-component polymer; the air cylinder assembly 24 adopts a servo propulsion air cylinder and is fixed with the bottom end of the motor assembly 23 to form a base of the motor assembly 23, and the motor assembly 23 and the screw 22 can move back and forth along the axial direction of the screw 22 under the driving of the advancing and retreating actions of the air cylinder assembly 24, so that the self-cleaning action of the screw mixing mechanism 18 and the replacement action of the screw 22 after exiting from the screw cavity 21 are realized.

And a cooling jacket 25 for cooling the screw cavity 21 is also arranged on the outer wall of the screw cavity 21. As shown in fig. 8 or 9, the cooling jacket 25 is disposed at the discharge port of the screw chamber 21 by a screw cap, and includes a cooling water inlet 26 and a cooling water outlet 27 which can communicate with an external pipe.

(II) feeding mechanism 19

The feed mechanism 19 is used to feed the multi-component polymer into the screw cavity 21 of the screw mixing mechanism 18. As shown in fig. 7 and 8, the feeding mechanism 19 includes at least two sets of a metering pump and a material valve which are disposed on the outer side wall of the screw chamber 21 and communicate with the inside of the screw chamber 21. In this embodiment, three groups of metering pumps and material valves are provided, and the metering pumps and the material valves in the three groups are all of the existing structure.

Under the opening state of the material valve, the multi-component polymer can be injected into the screw cavity 21 as required under the control of the self rotating speed of the metering pump; in the closed state of the metering valve, the multicomponent polymer can flow back into the feed cylinder via the internal line of the metering pump.

(III) spiral gas path jet mechanism 20

After the multi-component polymer is stirred and mixed by the screw 22 rotating at a high speed, the spiral gas circuit jet flow mechanism 20 at the front end of the screw cavity 21 is used for compressing air, so that the mixed high-viscosity multi-component polymer can be sprayed to the surface of a solid in a particle spiral jet flow mode, the jet flow is high and can reach 10-30 g/s, and the jet radiation boundary is clear, the atomization is small and no splashing exists. The spiral gas path jet mechanism 20 is used for ejecting the multi-component polymer mixed by the screw mixing mechanism 18 in a particle spiral jet mode. As shown in fig. 9, the spiral gas path jet mechanism 20 includes a beam gas path 28, a spiral gas path 29, and a spiral jet plate 30. The beam gas path 28 and the spiral gas path 29 in this embodiment are integrally provided with the cooling jacket 25 and located at the discharge port of the screw cavity 21, but the beam gas path 28 and the spiral gas path 29 may be independently provided in the form of an external pipeline according to actual conditions.

The spiral jet flow plate 30 is installed at the discharge port of the screw cavity 21 in the screw mixing mechanism 18 through a threaded cap, as shown in fig. 10, the spiral jet flow plate 30 includes a nozzle disposed at the center and communicated with the discharge port of the screw cavity 21, and a plurality of beam gas path holes 31 with a diameter of 2-4 mm circumferentially distributed with the nozzle as the center of circle. Wherein, be the annular and distribute a plurality of spiral gas circuit holes 32 on the nozzle inside wall, every spiral gas circuit hole 32's cross-section is semi-circular, and a plurality of spiral gas circuit holes 32 finally assemble to the port department of nozzle. After the spiral jet plate 30 is installed at the discharge port of the screw cavity 21, the jet air passage hole 31 can be communicated with the jet air passage 28, and the spiral air passage hole 32 can be communicated with the spiral air passage 29.

More specifically, the plurality of spiral air passage holes 32 are communicated with the outside through the same tapered hole 33 at the nozzle port, that is, the spiral air passage holes 32 do not extend completely to the end face of the nozzle. Moreover, each spiral air passage hole 32 can enable compressed air to form a double-angle air outlet direction, as shown in fig. 10, the center of the nozzle port is used as an original point, the axis of the screw 22 is used as a reference axis, the spiral angle of each spiral air passage hole 32 is 30-90 degrees, and the inclination angle towards the center of the nozzle port is 15-60 degrees. The specific angle can be determined according to actual conditions, and in the embodiment, the spiral angle of each spiral air passage hole 32 is 45 degrees, and the inclination angle is 30 degrees.

In this embodiment, the diameter of the tapered hole 33 on the nozzle is 5-10 mm. And the end of the screw 22 adjacent to the end of the nozzle (i.e., adjacent to the discharge port of the screw chamber 21) has a smaller diameter than the diameter of the tapered bore 33 in the nozzle, so that the screw chamber 21 can be cleaned while self-cleaning of the nozzle is also achieved. Furthermore, the end of the screw 22 adjacent to the nozzle is provided with a guide column 34 extending along the axial direction, and the cross-sectional diameter of the guide column 34 is smaller than the diameter of the tapered hole 33 in the nozzle, so as to ensure that the mixed multi-component polymer is fully blown into fine particles along the guide column 34 when being ejected.

In order to ensure that the trajectory and the spray width of the nozzle can be accurately controlled, the present embodiment is further provided with a six-axis robot 35. The six-axis robot 35 adopts the existing structure, and when in use, as shown in fig. 1, the screw mixing mechanism 18 is connected with the six-axis robot, so that the installation and fixation of the whole device on the six-axis robot 35 can be realized.

The working process of this embodiment is as follows:

when the multi-component polymer die is used, the stretching amount of the air cylinder 71 is controlled, the first connecting rod 72 and the second connecting rod 73 are pushed to be opened, the side die support 5 is driven to move, die assembly or die opening is completed, when the screwing-in amount of the top screw 81 is adjusted to be large, the end part of the top screw abuts against the blocking piece 82 of the first connecting rod 72, the opening angle of the first connecting rod 72 is inhibited, the maximum stroke of the first connecting rod 72 and the second connecting rod 73 is reduced, otherwise, the maximum stroke is increased to adapt to shoes with different widths, the frequency of die holder replacement is reduced, after the strokes of the left die 2 and the right die 3 are adjusted, the bottom die 14 is moved out, the bottom die is stopped at a left station, at least two basic components of a multi-component polymer material flow into the screw rod cavity 21 from different metering pumps of the feeding mechanism 19 in a fluid state, the screw rod 22 in the screw rod cavity 21 is driven by the motor assembly 23 to rotate at a high speed, the multi-component polymer in the screw rod cavity 21 is fully mixed and stirred, the high-viscosity mixture is formed, under the propelling force of the screw 22, the high-viscosity mixture enters the spiral air path jet mechanism 20 from the discharge port of the screw cavity 21, under the dual effects of the spiral air path 29 and the beam air path 28, the high-viscosity mixture is sprayed on the sole of the bottom die 14 from the tapered hole 33 of the nozzle in the form of particle spiral jet along the flow guide column 34 at the end of the screw 22, in the spraying process, the six-axis robot 35 continuously adjusts the motion track of the nozzle to realize the spraying of the multi-component polymer on the solid surface, after the spraying is finished, the bottom die 14 moves to the position where the left die 2 and the right die 3 are matched, the lifting cylinder 10 ascends to be matched with the left die 2 and the right die 3 to combine the upper and the sole, and the upper and the sole are bonded together.

It should be noted that the above-mentioned embodiments are only preferred embodiments of the present invention, and the present invention is not limited thereto, and although the present invention has been described in detail with reference to the above-mentioned embodiments, it will be apparent to those skilled in the art that modifications can be made to the technical solutions described in the above-mentioned embodiments, or some technical features can be replaced with equivalents. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a spiral efflux polyurethane is group shoemaking device even, includes the base, locates the die block device on the base, locate the left side mould and the right side mould that are used for on the base with the die block compound die, its characterized in that: the spiral jet device is used for spraying raw materials;

the spiral jet device comprises a screw mixing mechanism, a feeding mechanism and a spiral gas path jet mechanism, wherein the feeding mechanism is used for feeding the polymer into the screw mixing mechanism, and the spiral gas path jet mechanism is used for ejecting the polymer mixed by the screw mixing mechanism; the spiral gas circuit jet mechanism comprises a beam gas circuit, a spiral gas circuit and a spiral jet plate arranged at the discharge port of the screw mixing mechanism; the spiral jet flow plate comprises a nozzle arranged in the center and a plurality of beam flow gas path holes which are circumferentially distributed by taking the nozzle as the circle center; a plurality of spiral air passage holes are annularly distributed on the inner side wall of the nozzle, and the spiral air passage holes are converged to the port of the nozzle; the beam air path hole is communicated with the beam air path, and the spiral air path hole is communicated with the spiral air path.

2. The spiral-jet polyurethane shoe-making device with upper as claimed in claim 1, wherein: the driving device is a rodless cylinder, an installation plate is fixedly arranged on the track, and the rodless cylinder is fixedly arranged on the installation plate.

3. The spiral-jet polyurethane shoe-making device with upper as claimed in claim 2, wherein: the detection device is provided with three groups, one group is arranged above the lifting device, and the other two groups are respectively arranged on two sides of the lifting device, so that the bottom die generates three moving stations.

4. The spiral-jet polyurethane shoe upper connecting device according to any one of claims 1 to 3, wherein: the adjusting device comprises an air cylinder and a connecting rod assembly hinged to two ends of the air cylinder, the connecting rod assembly comprises a first connecting rod and a second connecting rod, one end of the first connecting rod is hinged to the fixing plate, one end of the second connecting rod is hinged to the side formwork support, and a hinge point is formed by the other end of the first connecting rod and the other end of the second connecting rod and hinged to the air cylinder; the fixed plate is provided with an angle adjusting device for adjusting the opening angles of the first connecting rod and the second connecting rod; the angle adjusting device comprises a blocking piece arranged on the first connecting rod and an adjusting jackscrew in threaded connection with the fixing plate, and the adjusting jackscrew corresponds to the blocking piece in position and is used for adjusting the opening angle of the first connecting rod.

5. The spiral-jet polyurethane shoe-making device with upper as claimed in claim 4, wherein: the spiral gas path holes are communicated with the outside through tapered holes at the discharge port of the nozzle; and the spiral angle of each spiral gas path hole is 30-90 degrees, and the inclination angle to the center of the discharge port of the nozzle is 15-60 degrees.

6. The spiral-jet polyurethane shoe-making device with upper as claimed in claim 5, wherein: the screw mixing mechanism comprises a screw cavity, a screw arranged in the screw cavity, a motor component for driving the screw to rotate around the axis of the screw and a cylinder component for driving the screw to move back and forth along the axis direction of the screw; a flow guide column is arranged at the end part of the screw rod close to one end of the nozzle along the axis direction; the screw rod is the toper screw rod to, the tip diameter that the screw rod is close to nozzle one end is less than the diameter of nozzle port, and the cover is equipped with the cooling jacket that is used for the heat dissipation cooling on the screw rod chamber.