KR100536066B1 - Method and apparatus for manufacturing sole and decoration sheet - Google Patents

Abstract

The present invention relates to a method and apparatus for manufacturing an outer shell, wherein the outer shell attached to a sole and upper of a shoe, a logo and a reinforcing pad of a garment, and other trinkets is 1 color-1 layer or 2 color-1. It can be easily molded and manufactured in a layer or 2-color-2 layer structure, and can produce products of various colors without being limited to only one color, and also easily bubbles contained in the polyurethane liquid material during the process. Insoles of shoes can be removed and hardened / dropped removal of the excess amount of the polyurethane stock solution generated during the process can achieve the effect of greatly improving workability while maintaining a clean working environment. Sole and upper, clothing logos and reinforcement pads, and other shells attached to trinkets, etc., can be molded into a 1- color-1 layer, 2-color-1 layer or 2-color-2 layer structure. A method of manufacturing the outer shells, and the outer shell manufacturing apparatus in which the charging means, the vacuum and vibration providing means, and the access eliminator are further arranged in a line so that the outer shells can be manufactured by the automated process from the supply of the material to the completion of the product. It is intended to provide.

Description

Method and apparatus for manufacturing shellfish {Method and apparatus for manufacturing sole and decoration sheet}

The present invention relates to a method and apparatus for producing shells, and more particularly, a special polyester polyol having better abrasion resistance than a general polyether solution in applying a high physical polyurethane stock solution, and a polytetramethylene polyol for improving physical properties and moldability. It is attached to soles and uppers of shoes, logos and reinforcement pads of clothes, and other trinkets by using materials that have excellent wear resistance, physical properties, and moldability compared to conventional PU stocks A method of manufacturing the envelopes, which enables the shells to be formed into a structure of 1 color-1 layer, 2 color-1 layer or 2 color-2 layer, and an automated process from the supply of the material to the completion of the product. The present invention relates to a shell manufacturing apparatus.

Outer shells such as shoe soles and uppers, logos on clothing, reinforcement pads attached to clothing for wear protection and cushioning, and jewelry such as watch straps are designed in various shapes and shapes, including rubber, polyurethane, and elastomers. It is molded / manufactured by a method such as injection, high frequency molding, molding, etc. using materials such as resin and PVC.

However, the above manufacturing method has various problems such as poor wear in the physical properties of the raw materials, defects such as bubbles in the appearance of the product, and a decrease in productivity by manual labor. In order to solve this problem, development / research of new materials and manufacturing methods have been attempted, but these attempts also have various limitations such as harmfulness of materials such as PVC, poor appearance by high frequency methods, and poor products due to bubbles appearing in injection and molding methods. There are many difficulties encountered.

Japanese Patent Application Laid-Open No. 01-310601 (89.12, 14) includes a nonwoven sheet having a polyurethane coating layer, and after filling a liquid polyurethane compound with a recess of a mold, excess resin is removed by a blade. The method of manufacturing a shoe sole is disclosed by placing a nonwoven fabric sheet on a lower mold top and heating / pressing it at a predetermined temperature and time to form a small protrusion of the polyurethane elastomer on the shoe sole. There is a disadvantage that the bubbles generated in the do not remove the shoe sole product is defective.

Korean Laid-Open Patent Publication No. 02-23785 (02.03.29) discloses a method of molding letters or patterns with silicone on the surface of products such as clothes, hats and shoes. Insufficient processes and the like for the treatment of the resin have the disadvantage of causing a poor quality of the product and a decrease in productivity.

In addition, Korean Patent Publication No. 96-31102 (96.09.17) discloses a method of attaching a mark or a character to a resin mat surface, and US Patent No. 4247513 (81.01.27) discloses a foam rubber sheet and a solid rubber sheet. Since a method of manufacturing a laminate sole, which is a method of bonding, has been disclosed, all of these patents include a process of making a product by pressing / heating with a pressure plate or a press mold, and removing materials from the material and materials generated in an intermediate process. There are some deficiencies such as removal of residuals.

U.S. Patent No. 5,709,763 describes some improved methods, such as irregularities using polyurethane or elastomeric resins, in which a mold stock solution is injected and a blade is used to remove excess of the stock solution from the mold. The use of solvents causes environmental pollution and decreases work efficiency. Also, there are limitations in mold manufacturing in forming irregularities and perforated plates, and there are limitations in various designs. There is a limit to the upper.

In the art of manufacturing the outer soles and uppers of such footwear, logos and reinforcement pads of garments, and other trinkets, it has better abrasion resistance and can greatly improve productivity and workability. There is a need for a variety of automated processes and improved technologies that can improve quality.

Accordingly, the present invention has been researched and developed in view of the above, and in applying a high physical polyurethane stock solution, a special polyester polyol having excellent abrasion resistance than a general polyether stock solution and polytetramethylene for improving physical properties and moldability By using polyol in combination, it is attached to soles and uppers of shoes, logo and reinforcement pads of clothing, and other trinkets by using materials having superior wear resistance, physical properties and moldability compared to conventional PU stock. Outer shell manufacturing method which can shape outer shell into 1 color-1 layer or 2 color-1 layer or 2 color-2 layer structure, and vacuum apparatus for removing bubble contained in liquid material during process and mold The present invention provides an apparatus for manufacturing shelled shells, which includes apparatuses for removing excess liquid material, to achieve an automated process. There is a purpose.

The present invention for achieving the above object comprises a mold having a cavity having a shell shape and shape, the first step of applying / removing the release agent for the release of the product in the cavity; A second step of quantifying / discharging the polyurethane stock solution prepared from the polyurethane poring machine and injecting / coating the cavity of the mold; A third step of charging the over-injected stock solution using charging means such that the polyurethane stock solution injected into the cavity of the mold has a parallel and even surface; Providing a vacuum of the vibrating means to the mold at the same time as providing the vacuum of the vacuum means, and suctioning and removing bubbles existing in the polyurethane stock solution injected into the cavity of the mold; A fifth step of removing the excess liquid of the polyurethane stock solution injected into the cavity of the mold by using an access remover so that the top surface of the polyurethane stock solution becomes a uniform surface; After automatically transferring the cavity of the mold to the lower hot plate of the press, the deposit is placed on the upper surface of the cavity of the mold in which the polyurethane stock solution is uniformly applied, and the sponge pad is attached for sufficient adhesion between the stock and the polyurethane stock solution. A sixth step of placing on the adherend; A seventh step of compressing and hardening the polyurethane stock solution of the mold cavity at the pressing force by moving the lower hot plate toward the upper mold of the press; After the press demoulding, there is provided an outer shell manufacturing method comprising an eighth step of demolding the outer shell cured from the cavity of the mold.

In a preferred embodiment, after the eighth process, the demolded product is placed in the cavity for securing space of the 2-color-1 layer mold, and then the polyurethane stock solution having a different color is injected into the cavity of the 2-color-1 layer mold. The coating is further progressed to the third, fourth, fifth, sixth, seventh, and eighth steps, so that two-color-1 layered shells can be produced.

In a preferred embodiment, a stencil having a through-hole designed after the fifth process is placed in the cavity of the mold so that the surface of the polyurethane stock solution started to cure in the through-hole and the mold cavity coincides up and down. After injecting the polyurethane stock solution of different color into the through hole, the third, fourth, fifth, sixth, seventh, and eighth steps are further performed in order so that two color-2 layered shells can be produced. do.

In particular, in the fourth process, the vacuum providing and releasing direction of the vacuum means is provided in a direction perpendicular to the surface of the polyurethane stock solution injected into the cavity of the mold, so that the flow of air does not directly contact the surface of the polyurethane stock solution. It is characterized by.

To achieve the above object, the present invention provides a polyurethane poring machine, a plurality of compression / pressurizing press devices arranged at equal intervals, and automatically transfers the press devices along a closed trajectory, and has an inlet and an outlet of a mold. An envelope manufacturing apparatus including an annular circulation line, comprising: a poly over-injected onto a top surface of a polyurethane stock solution, which is installed at a position corresponding to a discharge portion of the mold and is injected into a mold cavity by the polyureton poring machine Charging means for removing the urethane stock solution; Vacuum and vibration providing means installed on the side of the charging means to remove bubbles in the polyurethane stock solution injected into the cavity of the mold; A first access eliminator installed on the side of the vacuum means and flattening the polyurethane stock solution injected into the cavity of the mold and removing excess stock solution so that the top surface of the polyurethane stock solution becomes a uniform surface; A support die for supporting the charging means, the vacuum and vibration providing means, and the mold provided in each central portion of the first access eliminator; It is provided on the bottom surface of each support die so that the mold can be transported by one process, and provides a shell type manufacturing apparatus comprising a transport pneumatic cylinder for the transport / return movement along the rail.

The charging means may include a blade housing having a pneumatic cylinder which can be lowered and attached to an upper surface thereof; A blade holder fixed to the inside of the blade housing and having a slide groove having a bottom open; A blade which moves up and down along the slide groove of the blade holder based on whether the pneumatic cylinder is driven; An air injection line disposed along both bottom surfaces of the blade and having a plurality of injection holes formed on an inner surface thereof; Air supply means connected to provide compressed air to the air injection line; It is mounted to the rear of the blade housing characterized in that the drive means for conveying the charging means back and forth along the rail.

The vacuum and vibration providing means includes a vacuum panel having a vacuum forming space formed on the bottom surface; A vacuum providing line connected to one corner of an upper surface of the vacuum panel and attached to a vacuum pump; A vacuum release valve connected to an air supply source at two corner portions of the upper surface of the vacuum panel; A pressure gauge installed at the other one corner portion of the upper surface of the vacuum panel; A pneumatic cylinder installed at the center of the upper surface of the vacuum panel for lifting up and down; A diaphragm in close contact with the bottom of the mold to provide vibration to the mold; Characterized in that it consists of a control panel for controlling the drive control and operation of the vacuum and vibration providing means.

Preferably, the bottom surface of the vacuum panel coinciding with the vacuum providing line and the vacuum release valve is characterized in that a blocking plate is attached to guide the air supply for vacuum supply or vacuum release flow in the horizontal direction.

More preferably, the transparent window is further formed on the upper surface of the vacuum panel to observe the cavity portion of the mold.

In addition, the bottom edge of the vacuum panel is characterized in that the sealing is attached for sealing to the mold.

The first access eliminator includes a blade passing through the cavity of the mold into which the polyurethane stock solution is injected; A lower frame attached to the blade; A rod inserted left and right in the lower frame and having a driven gear in a center thereof; An inclination angle adjusting bar having a driving gear engaged with the driven gear of the rod attached to an end thereof; An upper frame inserted into the rod together with a lower frame; A transfer frame installed on an upper surface of the upper frame and moving forward and backward along a rail; A lifting pneumatic cylinder installed between the upper frame and the transfer frame and a compression spring installed to be compressible; A rod fixed to an upper surface of the transfer frame and having a height adjustment lever at a center thereof; Drive cam gears attached to both ends of the rod; And a driven cam gear mounted to both ends of the upper surface of the transfer frame to be engaged with the cam gear.

Preferably, the second access eliminator of the same configuration may be further arranged next to the first access eliminator.

In addition, between the first access eliminator or the second access eliminator and the inlet portion of the mold is characterized in that the first conveying conveyor for transferring the mold to the press device is installed.

In addition, between the discharge portion of the mold and the charging means is characterized in that the second conveying conveyor for transferring the mold discharged from the press device to the charging means is further installed.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a plan view showing the overall arrangement of the shellfish manufacturing apparatus according to the present invention, Figure 2 is a front view, Figure 3 is a side view.

The device provided in the present invention is a shoe sole and / or upper (upper surface, such as sneakers or slippers), logos and / or reinforcements (shoulders, knees, elbows, etc., etc.) of clothing, watch straps, etc. It is for manufacturing shells having various shapes and shapes according to designs such as jewelry.

The material for manufacturing the shells of the present invention is a material of high physical properties, using a special polyester polyol having excellent wear resistance than a general polyether stock solution and a polytetramethylene polyol for improving physical properties and moldability. Compared to the material having excellent wear resistance, physical properties and moldability.

Polyurethane stock solution used in the present invention, when compared to the general PU stock solution, can be drastically improved in abrasion of less than 0.05 Akron.

The shellfish manufacturing apparatus according to the present invention includes a circulation line 50 having an annular closed trajectory, a plurality of press devices 60 installed to be automatically transported along the circulation line 50, and a mold 10 for shellfish production. And a polyurethane poring machine 70 capable of injecting the polyurethane stock solution into the cavity 12 (formed into the designed shape and shape of the shell product).

The circulation line 50 includes one of the plurality of press devices 60, a mold inlet 62 for providing a mold 10 for pressurizing / heating the shell products, and one of the press devices 60. The mold discharge part 64 from which the mold 10 is demolded and discharged is formed.

Here, the charging means 20 is disposed at a position corresponding to the discharge portion 64 of the mold, and the vacuum and vibration providing means 30 are disposed to the side thereof, and the first access remover 40 is disposed to the side thereof. Will be placed. In this case, a second access eliminator may be selectively disposed to the side of the first access eliminator.

The pneumatic cylinder for transporting the charging means 20, the vacuum and vibration providing means 30, and the bottom of each of the first access eliminator 40 to support the mold 10 and to transfer to the next process 14 is disposed at the lower side, and each of the conveying pneumatic cylinders 14 performs a reciprocating motion of conveying / returning step by step along the rails 16 by a driving means (for example, a motor).

4 is a perspective view illustrating a charging device according to the present invention, and FIGS. 5A and 5B are cross-sectional views illustrating a state in which the charging device of FIG. 4 operates.

The charging means 20 has a blade housing 22 having a pneumatic cylinder 21 for lifting and lowering as a skeleton, and a blade holder 24 having a slide groove 23 in the blade housing 22. Is fixedly mounted.

In addition, the blade 25 is inserted into the slide groove 23 of the blade holder 24 to be moved up and down, the bar 25 is connected to the lifting and lowering pneumatic cylinder 21 and up and down depending on whether the pneumatic cylinder is driven or not. Is moved.

In particular, an air injection line 28 having a plurality of injection holes 26 formed on an inner surface thereof is arranged to be arranged along both sides of the lower end of the blade 25, and of course, the air injection lines 28 are compressed air injection holes. It is connected to the air supply means (not shown) so that the injection through the (26).

Meanwhile, a second transfer conveyor 82 is disposed between the charging means 20 and the mold discharge part 64 of the circulation line 50.

Referring to the process made in the charging means provided as follows.

The mold 10 demolded to the press apparatus 60 and discharged from the mold discharge part of the circulation line 50 is transferred to the charging means 20 by the second transfer conveyor 82.

That is, the mold 10 is raised on the support die 16 of the charging means 20 and at the same time the piston of the transfer pneumatic cylinder 14 disposed below the bottom of each corner of the mold 10 is supported. In this state, the polyurethane stock solution is injected into the cavity 12 of the mold 10 from the polyurethane poring machine 70.

At this time, the polyurethane stock solution is injected into the cavity 12 of the mold 10, and the polyurethane stock solution is excessively injected to the periphery of the cavity 12 with a slight overflow, and the overinjected amount is injected from the mold 10. Should be removed.

Accordingly, the lifting and lowering pneumatic cylinder 21 of the charging means 20 is driven, and at the same time, the blade 25 in the blade holder 24 moves downward along the slide groove 23, so that the mold 10 It is in a state of being in close contact with the upper surface.

Next, the driving means of the charging means 20 (for example, a pneumatic cylinder in which the piston is moved back and forth) is driven and the blade housing 22 moves forward and backward, while the blade 25 is in close contact with the mold. Passes the top and bottom of the vehicle.

Thus, the remaining polyurethane injection stock except the polyurethane stock solution filled in the cavity by the blade 25 is removed, the polyurethane stock solution removed is buried on both surfaces of the blade (25).

Simultaneously with the above operation, compressed air is injected through the injection hole 26 of the air injection line 28 adjacent to both surfaces of the blade 25, and thus the polyurethane stock solution removed by the compressed air is quickly cured. It is done.

Next, the blade 25 is moved upward along the slide groove 23 of the blade holder 24 by the return drive of the lifting and lowering pneumatic cylinder 21, while being slightly hardened on both sides of the blade 25. The adhered polyurethane undiluted solution is dropped while being caught by the lower end of the blade holder 24, so that the over-injected polyurethane undiluted solution (the state in which hardening is advanced by compressed air) is easily removed.

That is, since the width of the slide groove 23 of the blade holder 24 has a width enough to raise and lower the blade 23, the polyurethane stock solution attached to both sides of the blade 23 is the blade holder 24 The slide groove 23 is caught in the entrance portion is removed / removed.

In this way, after the excess polyurethane stock solution on the mold 10 is removed, the piston of the transfer pneumatic cylinder 14 which is supporting the bottom of each corner of the mold 10 is transferred from the support die 18 to the mold 10. At the same time to lift slightly to move together with the vacuum and vibration providing means 30 along the rail (16).

Thus, after lowering the mold 10 on the upper surface of the support die 18 of the vacuum and providing means 30, the transport pneumatic cylinder 14 is returned to its position.

More specifically, a separate plate body is attached to the upper surface of the piston of the transfer pneumatic cylinder 14, and the supporting rod 94 is attached to each corner of the plate body 92 in a vertical direction. The supporting rod 94 supports the bottom of each corner of the mold 10, and the supporting die 18 on which the mold 10 is mounted is fixedly mounted to the inside of each supporting rod 94 to avoid interference. have.

Therefore, the pneumatic cylinder 14 for transporting the mold 10 can be easily transported to the next process without interference of the support die 19.

Here, the vacuum and vibration providing means which is installed on the side of the charging means to remove the bubbles in the polyurethane stock solution injected into the cavity of the mold will be described.

6 is a perspective view showing a vacuum providing means according to the present invention, FIG. 7 is a front view and a partially enlarged view, and FIG. 8 is a bottom perspective view showing a vacuum panel of the vacuum providing means according to the present invention.

The part of the skeleton of the vacuum and vibration providing means 30 is a vacuum panel 32. The vacuum panel 32 is attached to the piston of the lifting and lowering pneumatic cylinder 33 at the center of the upper surface thereof. Transparent window 31 is formed, the bottom is a structure in which the vacuum forming space 34 is formed.

In particular, two of the four corners of the upper surface of the vacuum panel 32 are equipped with a vacuum release valve 35 connected to an air supply source (not shown), and one corner provides a vacuum connected to a vacuum pump (not shown). The line 36 is mounted, and a pressure gauge 37 is mounted at the remaining one corner.

In addition, a control panel 38 for controlling the vacuum and vibration providing means is attached to the front surface of the frame fixing the lifting and lowering pneumatic cylinder 33.

In addition, a bottom plate of the vacuum panel 32 coinciding with the vacuum providing line 36 and the vacuum release valve 35 has a blocking plate 39 which guides the air supply for vacuum supply or vacuum release to flow in the horizontal direction. Attached.

In addition, a vibration plate (not shown) is positioned as a vibration providing means that is in close contact with the bottom of the mold 10 to provide vibration to the mold, and a seal for the mold 10 is provided at the bottom edge of the vacuum panel 32. The seal 83 is attached for this purpose.

On the other hand, the pneumatic cylinder for transport 14 is also located below the vacuum and vibration providing means (30).

Looking at the operating state of the vacuum and vibration providing means provided as follows.

In the state in which the mold 10 is placed on the support die 18 of the vacuum and vibration providing means 30, the step of removing bubbles in the polyurethane stock solution injected into the cavity 12 is performed. The vacuum panel 32 is moved downward by the driving of the lifting and lowering pneumatic cylinder 33 to be in close contact with the upper edge of the mold 10.

Of course, the degree of vacuum, the time of providing and releasing the vacuum, the degree of vibration, etc. are set in advance by the operation of the control panel 38.

Therefore, when a vacuum is provided to the vacuum providing line 36 by the vacuum pump in a preset range, a vacuum is formed in the vacuum forming space 34 of the vacuum panel 32 in communication with the mold 10 of the mold 10. Bubbles in the polyurethane stock solution filled in the cavity 12 are easily removed.

After a predetermined time, the vacuum acting on the inside of the vacuum panel 32 is released, so that the air is supplied from the air supply source to the vacuum release valve 35 to communicate with the inside of the vacuum panel 32. The vacuum in the vacuum forming space 34 is released.

In this case, when the vacuum is formed in the vacuum forming space 34 of the vacuum panel 32, the vacuum release valve 35 is in a closed position and is controlled to be an open position for releasing the vacuum.

On the other hand, the bottom of the vacuum panel 32 is further attached to the blocking plate 39, the reason for the attachment is the air supplied to the inside of the vacuum panel 32 in accordance with the suction or release of the air inside the vacuum forming This is to prevent the direct action on the surface of the polyurethane stock solution of the cavity 12 of the mold 10.

That is, when the air is supplied in accordance with the vacuum release, if the air acts in a direction perpendicular to the surface of the polyurethane stock solution, some traces of the polyurethane stock solution may be scattered as if soaring upward may cause product defects. On the other hand, as the air first touches the blocking plate 39 and the flow direction thereof is changed from the vertical to the horizontal direction, the air does not directly contact the polyurethane surface, thereby preventing scattering of the polyurethane surface.

This vacuum provides a vibration plate located on the bottom surface of the mold 10 during the process of removing bubbles, thereby providing vibration to the mold 10, thereby making it easier to remove bubbles in the polyurethane stock solution.

Thus, after finishing the process of removing the bubbles in the polyurethane stock filled in the cavity 12 of the mold 10, the mold 10 is supported by a transfer pneumatic cylinder 14 located below it and the next device is Transferred to the first access eliminator.

Here, the configuration of the first access eliminator disposed in the next process on the side of the vacuum and vibration providing means is as follows.

9 is a perspective view showing an access eliminator according to the present invention.

Looking at the skeleton of the first access eliminator 40, it can be divided into the lower frame 41, the upper frame 42 and the transport frame 43 from the bottom.

A blade 44 passing through the upper surface of the mold 10 into which the polyurethane stock solution is injected is attached to a lower end of the lower frame 41, and a driven gear (not shown) in the center of the lower frame 41. The rod 45 having a side is inserted into the left and right.

In addition, a driving gear (not shown) of the inclination angle adjusting bar 46 is engaged with the driven gear, and an upper frame 42 is also fixedly mounted to the rod inserted into the lower frame 41. On the upper surface of the frame 42, the transfer frame 43 is moved forward and backward along the rail.

A compression spring 48 is fitted to the rod between the upper frame 42 and the transfer frame 43, and a rod 52 having a height adjusting lever 49 is attached to the upper surface of the transfer frame 43. .

Further, driving cam gears 54 are attached to both ends of the rod 52 having the height adjusting lever 49, and both ends of the upper surface of the transfer frame 43 are engaged with the driving cam gears 54. A driven cam gear 56 is mounted.

In addition, a rearward pneumatic cylinder (not shown) is mounted to the rear of the transfer frame 43 so that the first access eliminator 40 moves forward and backward along the rail.

Referring to the operation of the first access eliminator provided as follows.

In the state in which the mold 10 is placed on the support die 18 of the first access eliminator 40, the transfer frame 43 moves forward and backward with the driving of the pneumatic cylinder for forward and backward movement.

At this time, the upper frame 42 and the lower frame 41 move forward and backward together with the transfer frame 43, and at the same time, the blade 44 attached to the lower frame 41 is the upper surface of the mold 10. By passing through, the excess amount is removed while flattening the surface of the polyurethane stock solution filled in the cavity 12 of the mold 10.

Here, the operation of adjusting the angle and height of the blade 44 of the first access eliminator 40 will be described.

When the inclination angle adjustment bar 46 is rotated to the left and right, the rotational force of the drive gear is transmitted to the rod 45 driven gear, and the rod 45 integrated with the driven gear rotates back and forth, so that the front and rear of the lower frame 41 are rotated. The angle is adjusted, the angle of the blade 44 is made according to the angle of the lower frame 41.

In addition, when the height adjusting lever 49 is rotated, the driving cam gears 54 attached to both ends of the rod 52 rotate, and the rotational force is located at both ends of the upper surface of the transfer frame 43. The upper cam 42 is transmitted to the driven cam gear 56 to press the upper frame 42 below the transfer frame 43 which is connected to the driven cam gear shaft.

Subsequently, the upper frame 42 presses the lower frame 41 while compressing the compression spring 48. As the lower frame 41 moves up and down by the pressing force, the height of the blade 44 is increased. It is controlled.

After completing the process of evening the surface of the polyurethane stock solution filled in the cavity 12 of the mold 10, the mold is lifted by the piston of the transfer pneumatic cylinder 14 and then the first transfer conveyor ( 80, the mold 10 is transported to the press apparatus 60 in the mold inlet of the circulation line by the first transport conveyor 80.

A plurality of the press apparatus 60 is circulated at a constant speed along the circulation line 50, and the mold inlet 64 has a press apparatus 60 in which upper and lower molds are not engaged.

Therefore, the mold 10 transferred from the first conveying conveyor 80 is placed on the lower mold of the press apparatus 60.

Subsequently, an adherent 90 (eg, fabric, cloth, etc.) is placed on the cavity 12 of the mold 10 and adhered to the surface of the polyurethane stock solution in the cavity 12, and pressed onto the adherend. The buffer pad 91 is raised.

Next, the lower mold of the press apparatus 60 is lifted to the bottom of the upper mold in a fixed state to pressurize / heat.

Subsequently, the press apparatus 60 in which the mold 10 is engaged is transferred to the mold discharge part 64 along the circulation line 50, and finally, the lower mold of the press apparatus 60 is lowered to form the mold 10. The hardened polyurethane shell products, which are attached together with the adherend, are removed from the cavity 12 of the cavities.

The product completed by the process shown in FIG. 11 attached by the above-mentioned manufacturing apparatus is a 1-color-1 layer shell product, and as described below, a 2-color-1 layer and a 2 color-2 layer shell product It is also possible to prepare.

On the other hand, the second access remover 40 'is selectively disposed on the side of the first access remover 40 according to the type and design difference of the product, and injected into the cavity 12 of the mold 10. The process of flattening the polyurethane surface once more can be further proceeded.

The production of the above-mentioned shells has been described on the basis of the manufacture of shells of 1 color-1 layer, but it is possible to manufacture shells of 2 color-1 and 2 color-2 layers, where the shells of 2 color-1 layer are available. The manufacturing process is as follows.

Attached 12 is a schematic view for explaining the production of the 2-color-1 layer of shells by the shell production method according to the present invention.

The two-color-1 layer mold 72 is formed with two cavities, one of which is a dummy cavity 74 into which a finished one-color-1 layer of shell products is inserted, and the other is of a different color. It is a two-color cavity 76 filled with a polyurethane stock solution.

Therefore, the finished shell product of the one color-1 layer is inserted into the dummy cavity 74 of the two-color-1 layer mold 72, and then the other color is added to the remaining two-color cavity 76. It is filled with a polyurethane stock solution having.

Next, the two-color-1 layer mold 72 is passed through the charging means 20, the vacuum and vibration providing means 30, the first access eliminator 40, the press device 60, and the like. Through the same process, it is finally made into a 2-color-1 layer of shell products.

Herein, the outer shells manufacturing process of the 2-color-2 layer will be described.

Attached Figure 13 is a schematic view for explaining the production of the two-color two-layer shell by the shell production method according to the present invention.

As described above, after the polyurethane stock solution is filled into the mold 10, the process of passing through the charging means 20, the vacuum and vibration providing means 30, and the first access eliminator 40 is one color. It is the same as the shell manufacturing process of one layer.

After the first access eliminator process, a two-color-2 layer mold, that is, a stencil 78 having the through-hole 77 is stacked on the upper surface of the one-color-1 layer mold 10, and the through-hole 77 ) Is injected into the polyurethane stock solution of different colors.

At this time, the cavity 12 of the one-color-1 layer mold 10 and the through-hole 77 of the two-color-2 layer stencil 78 are in communication with each other while being partially shared. The polyurethane stock solution of another color filled with the through-hole 77 on the surface of the polyurethane stock solution is laminated and injected.

Next, the 1 color-1 layer mold 10 and the 2 color-2 layer stencil 78 are laminated to each other, and then the charging means 20 described above, the vacuum and vibration providing means 30, In addition, the process passes through the first access eliminator 40, the press apparatus 60, and the like, and is finally produced as a 2-color-2 layered shell product.

On the other hand, according to the manufacturing apparatus and method of the present invention is not limited to only one color can be manufactured of a variety of colors of course.

As described above, the method and apparatus for producing the shell products according to the present invention has the following advantages and effects.

1) The outer shells attached to the soles and uppers of shoes, logos and reinforcement pads of clothing, and other trinkets can be easily structured in 1 color-1 layer or 2 color-1 layer or 2 color-2 layer. Molding can be made.

2) By removing the bubbles contained in the polyurethane liquid material during the process by vacuum and vibration providing means, it is possible to prevent the defects caused by bubbles and at the same time to produce a superior shell products.

3) By adopting a method of curing the excess amount of the polyurethane stock solution generated during the process with the air of the charging means and dropping off, the existing method of washing the blade with the solvent is used to maintain a clean working environment. Workability can be greatly improved.

4) In the manufacture of shells, productivity and product quality can be improved by introducing an automated process in which charging means, devices such as vacuum and vibration providing means and access eliminators are arranged in a line.

5) Wear resistance and physical properties superior to conventional PU stocks by using a combination of special polyester polyols with better wear resistance than general polyether stocks and polytetramethylene polyols to improve physical properties and moldability in applying high-performance polyurethane stock solutions And moldability.

1 is a plan view showing the overall arrangement of the shellfish production apparatus according to the present invention, respectively,

2 is a front view respectively showing the overall arrangement of the shellfish production apparatus according to the present invention,

Figure 3 is a side view showing the overall arrangement of the shellfish production apparatus according to the present invention, respectively,

4 is a perspective view showing a charging device according to the present invention,

5A and 5B are cross-sectional views illustrating a state in which the charging device of FIG. 4 operates.

6 is a perspective view showing a vacuum providing means according to the present invention,

7 is a front view and a partially enlarged view showing a vacuum providing means according to the present invention;

8 is a bottom perspective view showing a vacuum panel of the vacuum providing means according to the present invention;

9 is a perspective view showing an access eliminator according to the present invention;

10 is a front view showing a state in which the mold according to the present invention is pressed / heated in a press apparatus,

11 is a schematic view for explaining the production of one color-1 layer of shells by the shell production method according to the present invention;

12 is a schematic view for explaining the production of two color-1 layer of shell by the shell production method according to the present invention.

13 is a schematic view for explaining the production of the two-colored two-layer shells by the shell production method according to the present invention.

<Explanation of symbols for main parts of the drawings>

10: mold 12: cavity

14: pneumatic cylinder for transfer 16: rail

18: support die 20: charging means

21: lifting and lowering pneumatic cylinder 22: blade housing

23: slide groove 24: blade holder

25: blade 26: injection hole

28: air spray line 30: vacuum and vibration providing means

31: transparent window 32: vacuum panel

33: lifting and lowering pneumatic cylinder 34: vacuum forming space

35: vacuum release valve 36: vacuum providing line

37: pressure gauge 38: control panel

39: blocking plate 40: first access eliminator

40 ': second access eliminator 41: lower frame

42: upper frame 43: transfer frame

44: blade 45: rod

46: inclination angle adjustment bar 48: compression spring

49: height adjustment lever 50: circulation line

52: Rod 54: Drive Cam Gear

56: driven cam gear 60: press device

62 mold inlet 64 mold outlet

70 polyurethane foaming machine 72 two-color-1 layer mold

74: dummy cavity 76: two color cavity

77 through hole 78 stencil

80: first conveying conveyor 82: second conveying conveyor

83: seal 90: adherend

91: pressure buffer pad 92: plate body

94: support rod

Claims (11)

A first step of forming a cavity having a shell shape and shape, and applying / removing a release agent to release the product into the cavity; A second step of quantifying / discharging the polyurethane stock solution prepared from the polyurethane poring machine and injecting / coating the cavity of the mold; A third step of charging the over-injected stock solution using charging means such that the polyurethane stock solution injected into the cavity of the mold has a parallel and even surface; Providing a vacuum of the vibrating means to the mold at the same time as providing the vacuum of the vacuum means, and suctioning and removing bubbles existing in the polyurethane stock solution injected into the cavity of the mold; A fifth step of removing the excess liquid of the polyurethane stock solution injected into the cavity of the mold by using an access remover so that the top surface of the polyurethane stock solution becomes a uniform surface; After automatically transferring the cavity of the mold to the lower hot plate of the press, the deposit is placed on the upper surface of the cavity of the mold in which the polyurethane stock solution is uniformly applied, and the sponge pad is attached for sufficient adhesion between the stock and the polyurethane stock solution. A sixth step of placing on the adherend; A seventh step of compressing and hardening the polyurethane stock solution of the mold cavity at the pressing force by moving the lower hot plate toward the upper mold of the press; A shell production method comprising an eighth step of demolding the cured shell from the mold cavity after the press demolding. The method according to claim 1, wherein after the eighth step, the demolded product is placed on the space securing cavity of the two-color-1 layer mold, and then the polyurethane stock solution having a different color is injected into the cavity of the two-color-1 layer mold. Applied to the third, fourth, fifth, sixth, seventh, eighth step in order to further apply to the outer shells manufacturing method characterized in that the outer shell of the two color-1 layer can be produced. The method according to claim 1, wherein the stencil having a through-hole designed after the fifth process is placed in the cavity of the mold so that the surface of the polyurethane stock solution started to cure in the through-hole and the mold cavity coincides up and down. After injecting the polyurethane stock solution of different color into the through hole, the third, fourth, fifth, sixth, seventh, and eighth steps are further performed in order so that two color-2 layered shells can be produced. Shellfish manufacturing method. The method according to any one of claims 1 to 3, wherein the vacuum providing and vacuum release direction of the vacuum means in the fourth process is provided in a direction perpendicular to the surface of the polyurethane stock solution injected into the cavity of the mold. A shell production method, characterized in that the flow of air does not directly contact the surface of the stock solution. Manufacture of shell products including a polyurethane poring machine, a plurality of compression / pressurizing press devices arranged at equal intervals, and an annular circulation line which automatically transfers the press devices along a closed trajectory and has an inlet and an outlet of a mold In the apparatus, Charging means installed at a position corresponding to the discharge portion of the mold and removing the polyurethane stock solution over-injected into the upper surface of the polyurethane stock solution injected into the mold cavity by the polyureton poring machine; Vacuum and vibration providing means installed on the side of the charging means to remove bubbles in the polyurethane stock solution injected into the cavity of the mold; A first access eliminator installed on the side of the vacuum means and flattening the polyurethane stock solution injected into the cavity of the mold and removing excess stock solution so that the top surface of the polyurethane stock solution becomes a uniform surface; A support die for supporting the charging means, the vacuum and vibration providing means, and the mold provided in each central portion of the first access eliminator; And a pneumatic cylinder for transfer, which is located on the bottom surface of each support die so as to transfer the mold step by step, and performs a transfer / return along the rail. The method of claim 5, wherein the charging means comprises: a blade housing having a pneumatic cylinder which can be lowered and attached to the upper surface; A blade holder fixed to the inside of the blade housing and having a slide groove having a bottom open; A blade which moves up and down along the slide groove of the blade holder based on whether the pneumatic cylinder is driven; An air injection line disposed along both bottom surfaces of the blade and having a plurality of injection holes formed on an inner surface thereof; Air supply means connected to provide compressed air to the air injection line; Apparatus for manufacturing the shellfish, characterized in that it is mounted to the rear of the blade housing and configured to drive the charging means back and forth along the rail. The apparatus of claim 5, wherein the vacuum and vibration providing means comprises: a vacuum panel having a vacuum forming space formed on a bottom surface thereof; A vacuum providing line connected to one corner of an upper surface of the vacuum panel and attached to a vacuum pump; A vacuum release valve connected to an air supply source at two corner portions of the upper surface of the vacuum panel; A pressure gauge installed at the other one corner portion of the upper surface of the vacuum panel; A pneumatic cylinder installed at the center of the upper surface of the vacuum panel for lifting up and down; A diaphragm in close contact with the bottom of the mold to provide vibration to the mold; Envelope manufacturing apparatus, characterized in that consisting of a control panel for controlling and operating the drive control of the vacuum and vibration providing means. 8. The cavity of the mold according to claim 5 or 7, wherein a bottom plate of the vacuum panel corresponding to the vacuum providing line and the vacuum release valve is attached to the bottom surface of the mold to induce an air supply for providing the vacuum or the vacuum release in a horizontal direction. The transparent window is further formed on the upper surface of the vacuum panel in order to observe the outer shell manufacturing apparatus, characterized in that the sealing is attached to the bottom edge of the vacuum panel for sealing to the mold. The method of claim 5, wherein the first access eliminator comprises: a blade passing through the cavity of the mold into which the polyurethane stock solution is injected; A lower frame attached to the blade; A rod inserted left and right in the lower frame and having a driven gear in a center thereof; An inclination angle adjusting bar having a driving gear engaged with the driven gear of the rod attached to an end thereof; An upper frame inserted into the rod together with a lower frame; A transfer frame installed on an upper surface of the upper frame and moving forward and backward along a rail; A lifting pneumatic cylinder installed between the upper frame and the transfer frame and a compression spring installed to be compressible; A rod fixed to an upper surface of the transfer frame and having a height adjustment lever at a center thereof; Drive cam gears attached to both ends of the rod; Apparatus for producing the shellfish, characterized in that it is composed of a driven cam gear mounted to both ends of the upper surface of the transfer frame to engage the cam gear. 10. The shellfish manufacturing apparatus according to claim 5 or 9, wherein a second access remover having the same configuration can be further arranged next to the first access remover. The method according to claim 5, Between the first access eliminator or the second access eliminator and the inlet portion of the mold is provided with a first conveying conveyor for transferring the mold to the press device, the discharge portion of the mold and the charging An outer shell manufacturing apparatus according to claim 1, further comprising a second conveying conveyor capable of conveying the mold discharged from the press apparatus to the charging means.