KR100905253B1 - Tire mold automatic cleaning device - Google Patents

Abstract

The present invention relates to a tire mold automatic washing device, and more particularly, to a tire mold automatic washing device which can clean the tire mold by spraying hot air and dry ice, and at the same time simplify the washing operation and shorten the washing time. It is about.

Automatic tire mold cleaning apparatus of the present invention, the tire mold automatic cleaning device configured to wash the tire mold consisting of the upper mold and the lower mold, the washing drum connected to the upper and lower molds; And a nozzle assembly having a heat spray nozzle installed in the washing drum and spraying heat and a dry ice spray nozzle spraying dry ice supplied from a dry ice supply source, wherein the nozzle assembly is formed of the upper mold. It is characterized in that it is configured to be rotatable in the interior of the washing drum to be located on the upper side during the cleaning and the lower side during the cleaning of the lower mold.

Accordingly, since the foreign matter stuck to the tire mold is carbonized and heated by the flame and then cleaned by spraying dry ice, the washing efficiency can be improved, and the nozzle assembly in which the thermal spray nozzle and the dry ice spray nozzle are combined is a washing drum. Since it is configured to be rotatable in the inner mold without washing after rotating the washing drum to rotate the mold as it can be washed quickly lower mold, thereby reducing the washing time can improve the productivity of the tire manufacturing line.

Description

Automatic tire mold cleaning device {CLEANING APPARATUS FOR TIRE MOLD}

The present invention relates to a tire mold automatic cleaning device, and more particularly, to a tire mold automatic cleaning device which can spray hot air and dry ice to effectively clean a tire mold and at the same time simplify the cleaning operation and shorten the cleaning time. It is about.

In general, a tire used as a wheel is manufactured by a pair of tire molds consisting of an upper mold and a lower mold. In other words, the raw material is put into the lower mold and heated at a high temperature in a state where the upper and lower molds are combined to be molded. In the process of forming the tire, the residues of the raw materials are bound to the tire mold inner surface or the air discharge hole and remain, so that repeated molding without removing them produces a defective product.

Accordingly, the tire manufacturing line is provided with a laser cleaner, a sandblast cleaning device, etc. to remove foreign substances remaining in the tire mold, but the laser cleaner cannot completely remove the foreign substances in the curved part of the tire mold, and sandblast cleaning The device not only causes the tire mold to be worn by the high pressure sprayed sand (sand) but also has the disadvantage of causing the defective product as the sprayed water is inserted in the curved gap.

In addition, in order to clean the tire, the tire mold must be separated from the manufacturing process, moved to the washing place, washed, transported and mounted again to the manufacturing process, and then adjusted and preheated. It becomes a factor to hinder.

Recently, in order to compensate for the above-mentioned disadvantages, as shown in Korean Patent Publication No. 10-0742717 and US Patent No. US 6,406,360 B1, a washing apparatus for cleaning a tire mold using dry ice is provided. Proposed.

For example, the dry ice cleaning apparatus for tire molds proposed as Korean Patent Publication No. 10-0742717 is shown in Figure 1 dry ice supply apparatus 20, washing drum 100, washing drum 100 and Lifting device 40 is connected to the rotary connection arm 43 and rotates the washing drum and Shanghai 360 and 360 degrees, and a moving means 30 for moving the dry ice supply device, the washing drum, and the lifting device (30). It is provided.

And, the washing drum 100 is formed in a cylindrical structure, the dry ice spray nozzle 180 for spraying the dry ice supplied from the dry ice supply device 20 through the connection hose 130 at a high speed, and The heat spray nozzle 190 is provided on the side of the dry ice spray nozzle 180.

Such a dry ice cleaning device for tire molds raises the washing drum 100 by the elevating device 40 and connects the connecting portions of the washing drum and the connecting portions of the upper mold 1 so as to coincide with each other, and then performs the washing operation. . The cleaning operation is performed by heating the impurities by the heat spray nozzle 190 and then spraying the dry ice by the dry ice spray nozzle 180 to remove the impurities in a manner of rapid cooling, cracking, and sublimation, thereby improving cleaning efficiency. You can expect the effect.

Then, in order to wash the lower mold 2, the washing drum 100 is lowered by the elevating device 40, the washing drum 100 is rotated, and then the connection part of the lower mold 2 and the washing drum 100 are rotated. ) Is connected to match each other, and the washing operation by the heat spray nozzle 190 and the dry ice spray nozzle 180 is performed.

However, the above-described tire dry ice cleaning apparatus has a work process such as rotating the washing drum 100 after washing the upper mold and again matching the connecting portion of the washing drum 100 with the connecting portion of the lower mold 2. Not only is it difficult and complicated, but also increases the downtime of the tire production line due to the increase of the assembly time, thereby reducing the productivity.

In addition, when the washing drum 100 is rotated, a connection hose for supplying dry ice, a power supply line, and a dust suction hose that are connected to the washing drum are entangled or twisted with each other, causing a malfunction.

In addition, the conventional dry ice cleaning device for a tire mold is supplied with a relatively low temperature hot air through the heat spray nozzle 190 to heat foreign matter to a high temperature, so the strength of rapid cooling during the spraying of the dry ice is weak, resulting in cracks of impurities. It has the disadvantage that the peeling and removal efficiency is lowered.

In addition, the conventional dry ice cleaning device for a tire mold, since the dry ice spray nozzle 180 and the heat spray nozzle 190 cannot be three-dimensionally sprayed as a single structure, the inside of the uneven portion formed in the tire mold to form a tread and a side shape of the tire. It has a disadvantage that it is impossible to clean the wall or corners.

The present invention has been proposed in view of the above, by spraying hot and dry ice to clean the tire mold, to provide a tire mold automatic cleaning device to improve the productivity by simplifying the cleaning operation and shortening the cleaning time. There is a purpose.

Another object of the present invention is to provide an automatic tire mold cleaning apparatus that can shorten the washing time by allowing the upper mold and the lower mold to be washed at the same time.

Still another object of the present invention is to provide an automatic tire mold cleaning device which can clean the complicated irregularities of a tire mold.

In order to achieve the above object, the automatic tire mold cleaning apparatus according to the present invention, in the tire mold automatic cleaning device configured to wash the tire mold consisting of the upper mold and the lower mold, washing connected to the upper mold and the lower mold drum; And a nozzle assembly having a heat spray nozzle installed in the washing drum and spraying heat and a dry ice spray nozzle spraying dry ice supplied from a dry ice supply source, wherein the nozzle assembly is formed of the upper mold. It is characterized in that it is configured to be rotatable inside the washing drum to be located on the upper side at the time of washing and the lower side during the washing of the lower mold.

In order to achieve the above object, the automatic tire mold cleaning apparatus according to the present invention, in the tire mold automatic cleaning device configured to wash the tire mold consisting of the upper mold and the lower mold, washing connected to the upper mold and the lower mold drum; A nozzle installation rotating body configured to be rotatable inside the washing drum; A heat injection unit configured to be movable above the nozzle installation rotating body and having a heat injection nozzle for injecting heat; And a dry ice spray unit configured to be movable below the nozzle installation rotating body and having a dry ice spray nozzle for spraying dry ice.

Here, the washing drum may include an upper connection member configured to be connected to the upper mold and an lower connection member configured to be connected to the lower mold to the upper side of the drum body.

The drum body may be formed in a cylindrical shape, and the upper and lower connection members may be detachably formed at upper and lower sides of the drum body.

The washing drum may include a foreign substance discharge pipe connected to a suction device to discharge the foreign substances generated in the washing process to the outside.

The nozzle assembly may include a nozzle installation rotating body rotatably installed in the washing drum; Nozzle lifting means installed on the nozzle installation rotating body and configured to be able to move forward and backward in a vertical direction; A rotary arm connected to an upper end of the nozzle lifting means and rotated by an arm driving means provided therein; And a driving arm having one side connected to the free end side of the rotating arm so as to be movable forward and backward and the heat spray nozzle and the dry ice spray nozzle mounted on the other side thereof.

The driving arm may include a nozzle mounting portion formed at a free end of the driving arm such that the thermal spray nozzle and the dry ice spray nozzle are rotatably installed; It may include a nozzle driving means for rotating the thermal spray nozzle and the dry ice spray nozzle.

The nozzle installation rotating body, the rotating body rotatably installed in the washing drum; And it may include a rotating body driving means for rotating the rotating body.

In addition, the cleaning drum may include a sealing means configured to prevent the scattering of foreign matter and the spread of noise.

At this time, the sealing means may be composed of a sealing plate installed on the upper or lower side of the rotating body.

The heat spraying unit and the dry ice spraying unit may include: nozzle raising and lowering means installed on the nozzle mounting rotating body and configured to move forward and backward in the vertical direction; A rotating arm connected to an upper end of the nozzle lifting means and configured to rotate by an arm driving means provided therein; A drive arm connected to the free end side of the rotary arm so as to be movable forward and backward; A nozzle mounting portion formed at a free end of the driving arm such that the thermal spray nozzle and the dry ice spray nozzle are rotatably installed; And nozzle driving means for rotating the thermal spray nozzle and the dry ice spray nozzle.

The thermal spray nozzles and the dry ice spray nozzles each include a plurality of nozzle units, and the nozzle units cross the spray directions in a diagonal direction so as to easily remove foreign substances stuck to the inner edges of the uneven parts formed in the tire mold. Can be installed.

The automatic tire mold cleaning apparatus of the present invention can improve cleaning efficiency by spraying dry ice after carbonizing and heating the foreign matter stuck to the tire mold with a flame, and thermal spray nozzles and dry ice spray nozzles Since the combined nozzle assembly is rotatably configured inside the washing drum, the washing mold can be quickly lowered without rotating the washing drum after washing the upper mold, and the lower mold can be quickly cleaned, thereby shortening the washing time, thereby reducing the tire manufacturing line. Productivity can be improved.

In addition, since the thermal spray nozzles and the dry ice spray nozzles are divided into upper and lower parts, the washing operation of the upper mold and the lower mold can be performed at the same time, thereby further reducing the working time.

In addition, since the thermal spraying unit and the dry ice spraying unit may be separated from each other, the thermal spraying process and the dry ice spraying process may be performed separately, thereby preventing damage, breakage, and contamination of the dry ice spraying unit during thermal spraying. Damage, breakage, and contamination of the heat spraying part can be prevented at the time of spraying dry ice, and durability can be improved.

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

Figure 2 is a view for explaining the technical spirit of the automatic tire mold cleaning apparatus according to an embodiment of the present invention, Figure 3 is a schematic configuration diagram showing an automatic tire mold cleaning apparatus according to an embodiment of the present invention.

2 and 3, in the automatic tire mold cleaning apparatus according to an embodiment of the present invention, the upper mold 21 and the lower mold 22 up and down on the mold support 10 so as to mold the tire. For cleaning the disposed tire mold 20, the washing drum 200 is connected to the upper and lower molds (21, 22), and the thermal spray nozzle installed in the washing drum 200 and spraying heat The nozzle assembly 300 is provided with a dry ice spray nozzle 320 for spraying 310 and dry ice.

The washing drum 200 includes a drum body 210 disposed at the center, an upper connection member 220 configured at an upper side of the drum body 210, and a lower connection member 230 configured at a lower side of the drum body 210. ). The upper connecting member 220 is formed to be in close contact with the lower circumferential portion of the upper mold 21 when the upper mold 21 is washed, and the lower connecting member 230 is used to wash the lower mold 22. It is formed so that it may be in intimate contact with the upper peripheral part of the lower mold.

In addition, although the upper connecting member 220 and the lower connecting member 230 may be integrally formed on the upper and lower sides of the drum body 210, in the present embodiment, the upper and lower molds ( 21, 22) to form a removable structure in consideration of the difference in the form. Accordingly, even when the type of the upper and lower molds 21 and 22 is changed, various types of tire molds 20 may be interchangeably washed by replacing only the upper and lower connection members 220 and 230. .

The nozzle assembly 300 is characterized in that it is configured to wash both the upper and lower molds 21 and 22 without rotating the washing drum 200. That is, by configuring the nozzle assembly 300 to be rotatable inside the washing drum 200, the thermal spray nozzle 310 and the dry ice spray nozzle 320 at the time of cleaning the upper mold 21, the upper connection member ( It is located on the 220 side toward the inside of the upper mold 21, the heat spray nozzle 310 and the dry ice spray nozzle 320 is located on the lower connection member 230 at the time of cleaning the lower mold 22 It may be operated to face the mold 22.

The thermal spray nozzle 310 may be applied without limitation as long as it is a structure capable of injecting or irradiating laser, plasma, hot air, etc. as a medium capable of heating a foreign substance fixed to the tire mold 20, but in the present embodiment, the flame It is possible to spray the foreign matter to a higher temperature to be able to spray at the same time by performing a carbonization of the foreign matter by the flame is composed of a thermal spray nozzle to improve the removal efficiency of the foreign matter.

Meanwhile, the washing drum 200 including the nozzle assembly 300 is positioned on the upper mold 21 or the lower mold 22 by the drum lifting device 400 during washing. The drum lifting device 400 may be applied without limitation as long as the device can raise and lower the washing drum 200, but the present embodiment includes a plurality of driving wheels 411 to secure mobility as shown in FIG. 2. One mounting table 410 and a driving unit 420 configured to perform the entry and the lifting operation of the washing drum 200 on one side of the mounting table 410.

The loading table 410 supplies a dry ice supply source 30 for supplying dry ice sprayed from the dry eye spray nozzle 320, and fuel and oxygen capable of forming a flame sprayed from the thermal spray nozzle 310. A fuel supply source 40 and a suction device 50 for sucking a foreign substance in the washing drum 200 are installed or loaded. Then, the dry ice supply source 30, the fuel supply source 40, and the suction device 50 are connected to each other by a connecting hose to each connected side (dry eye spray nozzle, heat spray nozzle, and foreign substance discharge pipe of the washing drum). Connected.

The suction device 50 may be constituted by a conventional bag filter device having a suction force generating means for generating a suction force and a filter for filtering foreign substances to be sucked. And, if there is already a suction line for suction of foreign matter in the tire manufacturing process, it is possible to directly connect the foreign substance discharge pipe to the suction line without having a separate suction device.

Figure 4 is a perspective view showing the main portion of the automatic tire mold cleaning apparatus according to an embodiment of the present invention.

3 and 4, the washing drum 200 is a cylindrical drum body 210, the upper connecting member 220 coupled to the upper side of the drum body 210, and the drum body 210 in the lower side It has a lower connection member 230 is coupled.

The drum body 210 has a flange 211 formed in the cylindrical body for connection with the upper and lower connection members 220 and 230, and a suction device on the outer circumferential surface of the cylindrical body to discharge foreign substances generated during the washing process to the outside ( Utility supply hole 213 for insertion of a foreign substance discharge pipe 212 connected to the side 50, a dry ice supply source 30 and a fuel hose 40, and a connection hose connecting the dry eye spray nozzle and the thermal spray nozzle. Is formed.

The upper connecting member 220 is a flange 221 formed to be connected to the flange 211 of the drum body 210 in the body formed in a cylindrical shape, and the lower circumference of the upper mold 21 when the upper mold 21 is washed. The connection part 222 formed in the corresponding shape so that a part may be closely_contact | connected is comprised. The lower connection member 230 is a flange 231 formed to be connected to the flange 211 of the drum body 210 in the body formed in a cylindrical shape, and the upper circumference of the lower mold 22 at the time of cleaning the lower mold 22 The connection part 232 formed in the corresponding shape so that it may be in close_contact | adherence to the part is comprised.

Referring to FIG. 4, the nozzle assembly 300 has a thermal spray nozzle 310 and a dry ice spray nozzle 320 in the upper and lower molds 21 and 22 during a washing operation. Nozzle mounting rotating body 330 having a rotating body 331 and a rotating body driving means 332, a nozzle lifting means 340, a rotating arm 350, and a driving arm to allow movement and rotational movement. 360.

Rotating body 331 is rotatably installed inside the washing drum 200 and the nozzle lifting means 340 including a rotating arm 350 and the driving arm 360 is coupled, the drum body 310 It includes a rotating shaft 331a rotatably installed via a bearing installed on the rotating shaft 331a, and a fixing member 331b coupled to the rotating shaft 331a such that the nozzle lifting means 340 is installed.

The rotating body driving means 332 is configured to rotate the rotating body 331, in this embodiment is composed of a motor such as a servo motor or stepping motor is coupled to the outer peripheral surface of the drum body 310, the motor shaft is a rotating shaft ( It is connected to 331a to transmit the rotational force.

The nozzle lifting means 340 is installed on the fixing member 331b of the rotating body 331 and is configured as an apparatus capable of moving forward and backward in the vertical direction. The nozzle lifting means 340 is composed of a hydraulic, pneumatic, and electric cylinder, or may be applied to the lifting mechanism and the like, which is composed of a gear and a lead screw, and the like.

Rotating arm 350 is a configuration in which one side is connected to the upper end of the nozzle lifting means 340 has a rotary arm body 351 having a substantially rectangular bar shape, and configured therein to rotate the rotary arm body 351 And arm driving means (not shown). The arm drive means may comprise a stepping motor, a power transmission mechanism configured to rotate the rotating arm body by the driving force of the stepping motor, and the like.

The driving arm 360 is configured such that one side of the driving arm 360 can be moved forward and backward on the rotating arm 350, and the heat spray nozzle 310 and the dry ice spray nozzle 320 are mounted on the other side thereof. The drive arm body 361 and the forward and backward drive means (not shown) provided in the drive arm body 361 are provided. The forward and backward driving means may be constituted by various devices capable of forward and backward driving the drive arm body 361. However, in this embodiment, the servo motor and the drive arm body are arranged to forward and backward the drive arm body by the driving force of the servo motor. It consists of a timing gear, a timing pulley, etc.

In addition, the thermal spray nozzle 310 and the dry ice spray nozzle 320 are provided with a plurality of nozzle units 311 and 321, respectively, for a quick cleaning action. Preferably, the thermal spray nozzle 310 and the dry ice spray nozzle 320 are each composed of two nozzle units 311 and 321, and the uneven portion (tire tread, etc.) formed in the tire mold 20 is formed. In order to easily remove the foreign matter stuck to the inner edge of the concave-convex portion) is installed so as to cross each other in the diagonal direction (intersecting in the X-shape).

Figure 5 is a perspective view showing a modification of the tire mold automatic cleaning apparatus according to an embodiment of the present invention.

Referring to FIG. 5, the nozzle assembly 300 includes a nozzle installation rotating body 330, a nozzle receiving means 340, a rotating arm 350, and a driving arm 360, and a thermal spray nozzle 310. The dry ice spray nozzle 360 is configured to be rotatable on the free end side of the drive arm 360. To this end, the nozzle mounting portion 370, the thermal spray nozzle 310 and the dry ice spray nozzle 320 is rotatably coupled to the free end of the driving arm 360, the thermal spray nozzle 370 and dry ice spray A nozzle driving means 380 for rotating the nozzle 320 is provided.

The nozzle mounting portion 370 is rotatably installed on the hinge member 371 and the hinge member 371 protruding on both sides of the free end of the driving arm 360, and the thermal spray nozzle 310 and the dry ice spray nozzle 320. ) Is provided with a rotating shaft 372 is coupled.

The nozzle driving means 380 is composed of a stepping motor 382 having a driven gear 381 coupled to an end of the rotating shaft 372 and a drive gear 383 engaged with the driven gear 381.

On the other hand, the automatic tire mold cleaning apparatus according to the present invention is provided with a sealing means (390) for preventing the scattering of foreign substances generated during the cleaning process by the thermal spray nozzle 310 and the dry eye spray nozzle (320). The sealing means 390 is sealed to prevent the scattering of foreign matter to the lower side of the washing drum 200 in the state in which the upper connecting member 220 is connected to the upper mold 21, the lower connecting member to the lower mold 22 If 230 is connected to the upper side of the washing drum 200 in the connected state to the structure that can be sealed to prevent the spread of foreign matter and noise can be configured in various forms.

For example, the sealing means 390 is composed of a sealing plate formed on the rotating body 331 of the nozzle assembly 300 as shown in FIG. The sealing plate is composed of a disk having an outer diameter close to the inner diameter of the drum body 210 to be rotated in the washing drum 200 is coupled to the upper or lower side of the rotating body 331. At this time, a through hole into which the lower portion of the nozzle elevating means 340 is fitted is formed in the center of the disc.

In addition to the above-described structure, the sealing means 390 forms slits (not shown) on the upper side and the lower side of the drum body 210, respectively, and inserts or leaves a disc-shaped sealing plate (not shown). It can be configured to open and close the drum body.

Hereinafter will be described the operation of the automatic tire mold cleaning apparatus according to an embodiment of the present invention.

6a and 6b are views for explaining the operation of the automatic tire mold cleaning apparatus according to an embodiment of the present invention, Figure 6a is a view showing a washing process of the upper mold, Figure 6b is a washing process of the lower mold It is a figure which shows.

As shown in Figure 2 and Figure 6a using the drum lifting device 400 is located between the upper mold 21 and the lower mold 22, the washing drum 200, the washing drum 200 is raised to the upper mold When the connecting member 210 is brought into close contact with the lower circumferential portion of the upper mold 21 and then fuel and oxygen are supplied from the fuel supply source 40 and the ignition operation is performed, the flame is injected through the thermal spray nozzle 310. . In this state, the thermal spray nozzle 310 heats the foreign substance while performing the front and rear movement, the left and right movement, the shanghai movement, and the rotational movement of the inside of the upper mold 21.

In addition, the thermal spray nozzle 310 is a lifting and lowering movement of the nozzle lifting means 340 is driven according to the control signal input in accordance with the shape and size of the tire mold 20, the rotational movement of the rotary arm 350, the drive Through the translational movement of the arm 360, and the rotational movement of the nozzle driving means 380 can be moved to any position in the upper mold 21, it is possible to perform the heating action accurately and precisely.

In this case, when the flame is injected into the tire mold, the foreign material is carbonized by the flame and the temperature of the foreign material is rapidly increased. Therefore, when the dry ice is sprayed as described below, the temperature drop becomes very large, so that the cracking and peeling of the foreign material is caused. Will be made more quickly and effectively. At this time, the carbonized foreign matter is changed into a structure that is easily broken, so that the adhesion strength attached to the tire mold is significantly weakened, so that it is more easily separated and removed.

When the flame spraying process as described above is completed, the dry ice supply source 30 is operated so that the dry ice is sprayed through the dry ice spray nozzle 320. In the process of spraying dry ice as described above, the dry ice spray nozzle 320 moves in the upper mold 21 according to a control signal input in the same manner as the thermal spray nozzle 310 to perform a washing operation.

In this way, the ultra-low temperature dry ice sprayed into the tire mold 20 rapidly cools the adhered foreign matters, causing shrinkage and cracking, so that the dry ice penetrates into the cracks and rapidly expands the volume while peeling the foreign matters. It will be washed.

In addition, the foreign substances generated during the cleaning process by the dry eye spray nozzle 320 and the thermal spray nozzle 310 are blocked by the sealing means 390 formed on the rotating body 331 and are not scattered to the drum body 210. Since it is discharged to the suction device 50 through the formed foreign matter discharge pipe 212, it is possible to perform a clean washing operation without contaminating the tire manufacturing line.

When the washing operation of the upper mold 21 as described above is completed, the washing operation of the lower mold 22 is performed as shown in FIG. 6B. In order to wash the lower mold 22, the washing drum 200 is first separated from the upper mold 21 and assembled to the lower mold 22. In the conventional case, the washing drum separated from the upper mold 21 is removed. Since it must be connected to the lower mold 22 after the rotation, it is not only very cumbersome and requires a long assembly time, but also requires a large operating space.

However, in the present embodiment, if the washing drum 200 is lowered as it is connected to the upper mold 21 without rotating separately, the lower connection member 230 is connected to the lower mold 22 so that the washing drum 200 can be easily and quickly cleaned. You can complete the preparation. Accordingly, it is possible to shorten the washing time of the overall tire mold, thereby improving the productivity of the tire manufacturing line.

On the other hand, when the washing drum 200 is connected to the lower mold 22, as shown in Figure 6b, by driving the rotating body driving means 332 to rotate the rotating body 331 180 degrees and the thermal spray nozzle 310 And the dry ice spray nozzle 320 is positioned on the lower mold 22 side. Thereafter, the flame is sprayed through the thermal spray nozzle 310 in the same manner as the washing operation of the upper mold 21, and the dry ice is sprayed through the dry ice spray nozzle 320 to be fixed to the lower mold 22. The foreign substance is rapidly cooled, peeled off and washed.

7 is a view for explaining the technical spirit of the automatic tire mold cleaning apparatus according to another embodiment of the present invention, Figure 8 is a schematic configuration diagram showing an automatic tire mold cleaning apparatus according to another embodiment of the present invention, Detailed description of the similar configuration to one embodiment will be omitted.

7 to 8, a tire mold automatic cleaning device according to another embodiment of the present invention includes a washing drum 500, a nozzle installation rotating body 600, a thermal spraying unit 700, and a dry ice spraying unit 800. In the tire forming process, the foreign matter is fixed to the tire mold 20 and foreign matters are removed by hot and dry ice, and the thermal spraying part 700 and the dry ice spraying part 800 are installed on the nozzle. By separating the upper and lower sides of the 600 is to be able to remove the foreign matter more effectively. Then, as the thermal spraying unit 700 and the dry ice spraying unit 800 are configured to be separated up and down, the upper and lower molds 21 and 22 are closely adhered to the upper and lower sides of the washing drum 500 at the same time, and the thermal spraying unit 700 and While simultaneously operating the dry ice spray unit 800, the upper and lower molds 21 and 22 can be washed at the same time.

Washing drum 500 is connected to the upper and lower molds (21, 22), the drum body 510 disposed in the center, and the upper and lower molds (21) on the upper and lower sides of the drum body (510) And upper and lower connecting members 520 and 530 in close contact with the circumferential portion of the lens 22.

The upper and lower connection members 520 and 530 may be integrally formed on the upper and lower sides of the drum body 510, but the upper and lower molds 21 and 22 vary in shape depending on the type, size, and size of the tire. In consideration of this, the structure is separated.

Figure 9 is a perspective view showing the main part of the automatic tire mold cleaning apparatus according to another embodiment of the present invention.

Referring to FIG. 9, the nozzle installation rotating body 600 is configured to be rotatably installed in the washing drum 500, and a rotating body 610 rotatably installed in the washing drum 500. Rotating body driving means 620 for rotating the rotating body 610 is provided.

The thermal spray unit 700 is configured to be movable on the upper side of the nozzle installation rotating body 600 and includes a thermal spray nozzle 710 for spraying heat, and the upper and lower molds of the thermal spray nozzle 710 during the washing operation. If the device to move back and forth, left and right, shankdong, and rotational movement inside the mold (21, 22) may be configured in various forms, the structure similar to the shape shown in the detailed configuration of the nozzle assembly 300 of the above-described embodiment Is formed.

That is, the rotatable spraying unit 700 is connected to the upper end of the nozzle lifting means 720 and the nozzle lifting means 720, which is installed on the rotating body 610 and configured to move forward and backward in the vertical direction, and configured to rotate in rotation. 730, the drive arm 740 is connected to the free end side of the rotary arm 730, the nozzle mounting portion formed at the end of the drive arm 740 so that the thermal spray nozzle 710 is rotatably installed 750 and nozzle driving means 760 for rotating the thermal spray nozzle 710 to angularly move.

The dry ice spray unit 800 includes a dry ice spray nozzle 810 which is configured to be movable below the nozzle installation rotating body 600 and sprays dry ice. The dry ice spray nozzle 810 is used during the cleaning operation. ) If the device to move the front and rear, left and right, shankdong, and rotational movement in the upper and lower molds (21, 22) can be configured in a variety of forms, but with the above-described injectable spray unit 700 in the present embodiment Similarly, the nozzle lifting means 820, the rotating arm 830, the driving arm 840, the nozzle mounting portion 850, and the nozzle driving means 860 are configured.

On the other hand, the inside of the washing drum 500 is provided with a sealing means (900) for preventing the scattering of foreign matter in the cleaning process by the thermal spray nozzle 710 and dry ice spray nozzle (810).

The sealing means 900 is composed of a sealing plate formed on the rotating body 610 as shown in Figs. The sealing plate is configured in a disk shape having an outer diameter close to the inner diameter of the drum body 510 so as to be rotated in the washing drum 500.

Hereinafter will be described the operation of the automatic tire mold cleaning apparatus according to another embodiment of the present invention.

10a and 10b is a view for explaining the operation of the automatic tire mold cleaning apparatus according to another embodiment of the present invention.

As shown in FIG. 10A, the drum 120 is placed between the upper mold 21 and the lower mold 22 by using a drum lifting device, and the upper drum connecting member 520 is moved by the upper mold 21 by raising the washing drum. In close contact with the lower circumference of the), when fuel and oxygen are supplied from the fuel supply source and the ignition operation is performed, the flame is injected through the thermal spray nozzle 710. At this time, the thermal spray nozzle 710 heats the foreign matter while performing the front and rear movement, left and right movement, Shanghai movement, and rotational movement in the upper mold 21.

When the foreign matter is carbonized by the flame sprayed as described above and the temperature of the foreign matter is rapidly increased, the rotating body 610 is rotated 180 degrees so that the dry ice spray nozzle 810 is positioned on the upper mold 21 side, and the dry ice The dry ice is sprayed through the spray nozzle 810 to separate and clean the foreign matter.

As described above, when the thermal spraying unit 700 and the dry ice spraying unit 800 are separated from each other by being formed above and below the nozzle installation rotating body 60, the dry ice spraying unit 800 of the Damage, breakage and contamination can be prevented in advance, and damage, breakage and contamination of the heat spraying part 700 can be prevented in advance when the dry ice is sprayed, and the heat spraying part 700 and dry ice powder can be prevented. By removing the mutual adverse effects of the temperature difference between the four parts 800 can remove the foreign matter more effectively.

On the other hand, the automatic tire mold cleaning apparatus according to another embodiment of the present invention is configured to separate the thermal spraying unit 700 and the dry ice spraying unit 800 on the upper and lower sides of the nozzle installation rotating body 600 as shown in Figure 10b As the upper and lower molds (21, 22) are in close contact with the upper and lower sides of the washing drum (500) and the thermal spraying unit (700) and the dry ice spray unit (800) are operated at the same time of the upper and lower molds (21, 22). Cleaning can be done at the same time.

That is, when the flame is sprayed using the thermal spraying part 700 on the upper mold 21 and the rotating body 610 is rotated 180 degrees, the dry ice spraying part 800 is positioned on the upper mold 21 side. Then, the thermal spraying part 700 is located in the lower mold 22. In this state, when the thermal spraying unit 700 and the dry ice spraying unit 800 are simultaneously driven, the upper mold 21 is cleaned by dry ice sprayed through the dry ice spray nozzle 810, and the lower mold The mold 22 is simultaneously heated by the flame sprayed through the thermal spray nozzle 710.

When the heating operation of the lower mold 22 is completed, the rotating body 610 is rotated again by 180 degrees and the operation of the thermal spraying unit 700 is stopped, followed by the washing operation of the lower mold 22 by the dry ice spray unit 810. Since the washing time can be reduced, the productivity of the tire manufacturing line can be improved.

Although not specifically described or illustrated, the thermal spray unit 700 and the dry ice spray unit 800 may be respectively provided above and below the nozzle installation rotating body 600. In this case, the heating operation of the upper mold 21 and the lower mold 22 can be simultaneously performed, and after the nozzle installation rotating body 600 is rotated, the washing operation of the upper mold 21 and the lower mold 22 is performed. It can be done at the same time, further reducing the work time.

What has been described above is just one embodiment for implementing the automatic tire mold cleaning apparatus according to the present invention, the present invention is not limited to the above embodiment, as claimed in the following claims of the present invention Those skilled in the art to which the present invention pertains without departing from the spirit of the present invention will have the technical idea of the present invention to the extent that various changes can be made.

1 is a view for explaining a conventional tire mold cleaning apparatus,

Figure 2 is a view for explaining the technical spirit of the automatic tire mold cleaning apparatus according to an embodiment of the present invention,

Figure 3 is a schematic configuration diagram showing an automatic tire mold cleaning apparatus according to an embodiment of the present invention,

Figure 4 is a perspective view showing the main portion of the automatic tire mold cleaning apparatus according to an embodiment of the present invention,

Figure 5 is a perspective view showing a modification of the tire mold automatic cleaning apparatus according to an embodiment of the present invention,

6a and 6b is a view for explaining the operation of the automatic tire mold cleaning apparatus according to an embodiment of the present invention,

7 is a view for explaining the technical spirit of the automatic tire mold cleaning apparatus according to another embodiment of the present invention;

8 is a schematic configuration diagram showing an automatic tire mold cleaning device according to another embodiment of the present invention;

9 is a perspective view showing the main portion of the automatic tire mold cleaning apparatus according to another embodiment of the present invention;

10a and 10b is a view for explaining the operation of the automatic tire mold cleaning apparatus according to another embodiment of the present invention.

<Explanation of symbols for main parts of drawing>

10: mold support 20: tire mold

21: upper mold 22: lower mold

30: dry ice supply source 40: fuel supply source

50: suction device 200, 500: washing drum

210,510: drum body 220,520: upper connection member

230,530: lower connection member 300: nozzle assembly

310,710: thermal spray nozzles 320,810: dry ice spray nozzles

330,600: Nozzle mounting rotating body 340, 720, 820: Nozzle lifting means

350,730,830: Rotating arm 360,740,840: Drive arm

370,750,850: Nozzle installation part 380,760,860: Nozzle driving means

390,900: Airtight means 400: Drum lifting device

700: thermal spray unit 800: dry ice spray unit

Claims (12)

In the automatic tire mold cleaning device configured to wash the tire mold consisting of the upper mold and the lower mold, A washing drum connected to the upper mold and the lower mold; And A nozzle assembly having a heat spray nozzle installed inside the washing drum and spraying heat, and a dry ice spray nozzle spraying dry ice supplied from a dry ice supply source, The nozzle assembly is a tire mold automatic cleaning device, characterized in that the rotatable inside the washing drum is located at the upper side during the cleaning of the upper mold and the lower side during the cleaning of the lower mold. In the automatic tire mold cleaning device configured to wash the tire mold consisting of the upper mold and the lower mold, A washing drum connected to the upper mold and the lower mold; A nozzle installation rotating body configured to be rotatable inside the washing drum; A heat injection unit configured to be movable above the nozzle installation rotating body and having a heat injection nozzle for injecting heat; And And a dry ice spray unit configured to be movable below the nozzle installation rotating body and having a dry ice spray nozzle for spraying dry ice. The method according to claim 1 or 2, The washing drum has an upper connecting member configured to be connected to the upper mold and an upper connecting member configured to be connected to the lower mold and a lower connecting member configured to be connected to the lower mold. Device. The method of claim 3, The drum body is formed in a cylindrical shape, the upper and lower connection member is a tire mold automatic cleaning device, characterized in that configured to be separated on the upper and lower sides of the drum body. The method according to claim 1 or 2, The washing drum is a tire mold automatic cleaning device, characterized in that provided with a foreign substance discharge pipe connected to the suction device to discharge the foreign substances generated in the washing process to the outside. The method of claim 1, The nozzle assembly, A nozzle installation rotating body rotatably installed in the washing drum; Nozzle lifting means installed on the nozzle installation rotating body and configured to be able to move forward and backward in a vertical direction; A rotary arm connected to an upper end of the nozzle lifting means and rotated by an arm driving means provided therein; And And a driving arm having one side connected to the free end side of the rotary arm so as to be moved forward and backward and the other side mounted with the heat spray nozzle and the dry ice spray nozzle. The method of claim 6, The driving arm is A nozzle mounting portion formed at a free end of the driving arm such that the thermal spray nozzle and the dry ice spray nozzle are rotatably installed; And a nozzle drive means for rotating the thermal spray nozzle and the dry ice spray nozzle. The method according to claim 2 or 6, The nozzle installation rotating body, A rotating body rotatably installed in the washing drum; And Automatic tire mold cleaning device comprising a rotating body driving means for rotating the rotating body. The method of claim 8, Automatic tire mold cleaning device comprising a sealing means configured to prevent the scattering of foreign matter and the spread of noise inside the washing drum. The method of claim 9, The sealing means is automatic tire mold cleaning device, characterized in that consisting of a sealing plate installed on the upper or lower side of the rotating body. The method of claim 2, The thermal spray unit and the dry ice spray unit, Nozzle lifting means installed on the nozzle installation rotating body and configured to be able to move forward and backward in a vertical direction; A rotating arm connected to an upper end of the nozzle lifting means and configured to rotate by an arm driving means provided therein; A drive arm connected to the free end side of the rotary arm so as to be movable forward and backward; A nozzle mounting portion formed at a free end of the driving arm such that the thermal spray nozzle and the dry ice spray nozzle are rotatably installed; And And a nozzle drive means for rotating the thermal spray nozzle and the dry ice spray nozzle. The method according to claim 1 or 2, The thermal spray nozzles and the dry ice spray nozzles each include a plurality of nozzle units, and the nozzle units cross the spray directions in a diagonal direction so as to easily remove foreign substances stuck to the inner edges of the uneven parts formed in the tire mold. Automatic tire mold cleaning device, characterized in that installed.

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