KR100311240B1 - A Parting Powder Spray Machine - Google Patents

Abstract

The present invention relates to a releasing agent injector, the position shifting means (A) for moving the green tire (G) is mounted on the support plate (2) attached via a plurality of vertical support plate (1) fixed to the floor, Tire lifting means (B) for raising the cylindrical green tire (G) to the chuck (4), tire size measuring means (C) for measuring the size of the green tire (G) bitten by the chuck (4), the measured tire Release agent injection means (D) for injecting the release agent to the inside and outside of the tire by moving the nozzle according to the size, release agent drying means (E) for drying the green tire sprayed with the release agent at room temperature for a predetermined time, and the dried tire It is provided with a tire discharge means (F) for discharging.

Description

Release agent spraying machine {A Parting Powder Spray Machine}

The present invention relates to a device for injecting a releasing agent to the green tire, and more particularly to a releasing agent injector to spray the releasing agent by automatically adjusting the injection pressure and the injection width according to the tire size.

During vulcanization, the tire is put into the mold and pressure steam is applied from the inside and the outside so that the inner liner of the tire adheres to the bladder due to the pressure delivered to the tire. In order to prevent this, a proper amount of a release agent (GIP: green tire inside-paint) is applied on the inside and outside of the tire to prevent the inner liner from sticking to the bladder so that the tire can be easily taken out from the mold after the end of vulcanization.

However, the device used to inject the releasing agent onto the green tire usually cannot control the spraying distance, the spraying width and the height, and the spraying conditions cannot be adjusted according to the tire specifications, so that the releasing agent is over sprayed or unsprayed. In the case of vulcanization, the defect of the release agent is agglomerated at the time of vulcanization, resulting in a defect of FM (foreign material). On the contrary, in the case of unsprayed, the defect of bare scratches such as nail marks on the tire surface is generated.

Therefore, since the injection conditions must be adjusted every time the releasing agent is injected, there is a problem in that the workability is deteriorated.

Accordingly, the present invention has been made to solve the above problems, by automatically adjusting the injection width and injection pressure according to the tire size to spray the release agent to prevent the occurrence of defects due to over-injection or fine spraying The purpose is to provide a mold release agent injection device.

1 is a schematic plan view of an injector according to the present invention;

2 is a partial schematic cross-sectional view of the injector according to the present invention;

3 is a cross-sectional view of a first spray unit according to the present invention;

4 is a cross-sectional view of a second spray unit according to the present invention.

1 --- vertical support plate, 2 --- support plate,

3 --- swivel, 4 --- chuck,

5 --- axis, 6 --- conveyor,

7 --- bracket, 8 --- 1st cylinder,

9 --- 2nd cylinder, 10 --- OD sensor,

11,19 --- guide, 12 --- width measuring sensor,

13 --- cabin, 14 --- first spraying unit,

15 --- second injection unit, 16, 25 --- support frame,

17 --- 1st cylinder, 18 --- 2nd cylinder,

20 --- first support rod, 21 --- second support rod,

22a, 22b --- connecting bar, 23a, 23b --- spray nozzle,

24 --- auxiliary frame, 26 --- bracket,

27 --- guide rail, 28 --- horizontally moving cylinder,

29 --- horizontal moving member, 30 --- first spray nozzle,

31 --- second injection nozzle, 32 --- third injection nozzle,

33 --- control panel 35, 42, 51 --- detector,

40 --- vertical cylinders, 41 --- support plates,

45 --- motor, 46 --- housing,

48 --- inner sleeve, 49 --- outer sleeve,

50 --- adjusting member, 52 --- conveying conveyor,

A --- position moving means, B --- tire lifting means,

C --- tire size measuring means, D-release agent spraying means,

E --- Release agent drying means, F --- Tire discharge means, G --- Green tires

The present invention for achieving the above object, the position shifting means for moving the green tire is mounted on the support plate attached via a plurality of vertical support plates fixed to the floor and the tire to lift the cylindrical green tire to the chuck Lifting means, tire size measuring means for measuring the size of the green tire bitten by the chuck, release agent spraying means for spraying the release agent to the inside and outside of the tire by moving the nozzle according to the measured tire size, green tire sprayed with the release agent It has a release agent drying means for drying at room temperature for a predetermined time, and a tire discharge means for discharging the dried tire.

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

1 and 2, the green tire (G) is mounted on the support plate (2) attached horizontally through a plurality of vertical support plate (1) fixed to the floor (not shown) as shown in Figure 1 and 2 The size of the position moving means (A) for moving the tire, the tire lifting means (B) for raising the cylindrical green tire (G) to the chuck (4), and the green tire (G) bitten by the chuck (4). Tire size measuring means (C) to be measured, release agent spraying means (D) for injecting a releasing agent to the inside and outside of the tire by moving the nozzle according to the size of the measured tire, and the green tire sprayed with the releasing agent for a predetermined time And a release agent drying means E for drying at room temperature, and a tire discharge means F for discharging the dried tire.

In addition, the position shifting means (A) is mounted vertically to the support plate (2) to be rotated at a predetermined speed by a motor (not shown) and installed at right angles to the axis (5) And rotated in a clockwise and counterclockwise direction as the shaft 5 rotates, and is arranged at a predetermined interval on the rotating plate 3 and supplied by the tire raising means B. Equipped with a number of chucks (4) to grab the green tire (G).

In addition, the tire lifting means (B) is fixed to the conveyor 6 on which the green tire (G) is mounted, and vertically via a bracket (7), the chuck (4) holding the conveyor (6) grips the tire. It is equipped with the 1st cylinder 8 which raises to a possible position, and the 2nd cylinder 9 which lowers the raised conveyor 6 to an initial position.

On the other hand, the tire size measuring means (C) is fixed via the vertical support plate 1, the outer diameter measuring sensor 10 for measuring the outer diameter of the green tire (G) gripped by the chuck 4 and the vertical support plate ( The width of the guide 11 installed perpendicularly to 1) and the green tire G which is installed on the guide 11 and is moved up and down along the guide 11 in the vertical direction to be gripped by the chuck 4. A measuring sensor 12 is provided.

In addition, the release agent injection means (D) is mounted to the cabin (cabin: 13), the first injection unit 14 for injecting the release agent to the inner surface of the green tire (G) that the chuck 4 bites, and the tire The second injection unit 15 for spraying a release agent on the outer surface of the.

Here, the first spraying unit 14 includes first and second cylinders 17 and 18 mounted in the vertical direction to the quadrangular box-shaped support frame 16 as shown in FIG. 3, and these first cylinders. A first support rod 20 and a second support rod 21 in which the vertical movement is guided by the guide 19 while the elevating operation is carried out via the 17 and the second cylinder 18, and the first and second supports are supported. Connection bars 22a and 22b fixed in the vertical direction at the ends of the rods 20 and 21, and injection nozzles 23a and 23b mounted at different angles at the upper ends of these connection bars 22a and 22b, respectively. Equipped)

As shown in FIG. 4, the second spray unit 15 includes a nozzle horizontal moving element, a nozzle vertical moving element, and a nozzle width adjusting element, wherein the nozzle horizontal moving element is fixed vertically and horizontally. A guide rail 27 horizontally installed on the support frame 25 having a quadrangular box shape having an auxiliary frame 24 in a horizontal direction through a bracket 26, and a guide rail 27 through the auxiliary frame 24. Horizontal movement cylinder (28) mounted to be parallel to the horizontal, the upper one side is fixed to the rod end of the horizontal movement cylinder (28) and the lower part is supported by the auxiliary frame (24) to expand and contract the movement of the horizontal cylinder (28) In accordance with the guide rail 27, the horizontal moving member 29 is slid in the horizontal direction, the first spray nozzle mounted via the nozzle vertical moving element and the nozzle width adjusting element mounted on the horizontal moving member 29 ( 30), the second spray nozzle (31) and the third spray nozzle (32), the Attached to the auxiliary frame 24 detects the number of times the horizontal member 29 is moved to apply control power to a programmable logic controller (not shown) of the operation panel 33 (see FIG. 1). The detector 35 is provided.

In addition, the nozzle vertical moving element is a vertical movement cylinder 40 fixed to the lower portion of the horizontal movable member 29, and the sliding movement in the vertical direction in accordance with the expansion and contraction of the vertical movement cylinder 40 is connected to this Programmable logic by detecting the number of times that the second spray nozzle 31 moves up and down, installed on one side of the horizontal moving member 29 and the support plate 41 for lifting and lowering the two spray nozzles 31 separately. A detector 42 for applying control power to the control device is provided.

On the other hand, the nozzle width adjusting element is installed on top of the horizontal moving member 29, the motor 45 is rotated forward and reverse according to the control signal transmitted from the programmable logic controller, the motor 45 And a rotational force transmission shaft 47 connected to the motor 45 while being installed in a housing 46 installed in a vertical direction, and an inner sleeve 48 coupled with the rotational force transmission shaft 47 and the inner sleeve ( 48 and the first injection nozzle 30 and the third having an external sleeve 49 which is connected to the screw coupling and moved up and down with a predetermined stroke in accordance with the rotation of the motor 45. By controlling the injection nozzle 32 at the same time to widen or narrow the gap between the nozzles (30, 32) and the operating position of the first spray nozzle 30 and the third spray nozzle (32) And a detector 51 for sending control signals to the programmable logic controller.

Next, the operation of the release agent injector of the present invention configured as described above will be described.

First, when the green tire G moved to the inlet of the tire lifting means B by the conveying conveyor 52 is placed on the conveyor 6, the first cylinder 8 according to the control signal applied from the programmable logic controller. ), The conveyor 6 is raised to a position where the chuck 4 can grip the tire as the chuck 4 is extended, and when the arm (not shown) constituting the chuck 4 bites the green tire G, the shaft As the rotating plate 3 rotates clockwise and counterclockwise via (5), the green tire G is moved to the tire size measuring means C. As shown in FIG.

Subsequently, the outer diameter and the width of the tire held by the chuck 4 are measured by the width measuring sensor 12 which is moved up and down along the outer diameter measuring sensor 10 and the guide 11, and then processed. Control signals are applied to the injection unit 14 and the second injection unit 15, respectively, and the injection units 14, 15 are individually operated in accordance with the applied signal, and the injection nozzles 23a, 23b and the first, The positions of the 2,3 injection nozzles 30, 31, and 32 are adjusted, and the green tires are discharged at the appropriate position through the injection nozzles 23a, 23b, 30, 31, and 32, respectively. The release agent is simultaneously sprayed into and out of G). And after the release agent injection is completed, the tire is dried to room temperature in the release agent drying means (E) and then configured to be transferred to the subsequent process by the tire discharge means (F).

In more detail, when the control signal is applied to the first injection unit 14 from the programmable logic controller, the first cylinder 17 and the second cylinder 18 contract and move down to the bottom of the cabin 13. The first and second support rods 20 and 21 are pulled to vertically move the injection nozzles 23a and 23b to the inside of the green tire G. The tire height measurement value and the number of vertical reciprocations of the cylinder measured by the encoder If they match, the operation of the first and second cylinders 17 and 18 is stopped.

Here, the first and second support rods 20 and 21 are lowered to the lowest end of the cabin 13 when the green tire G is not bitten by the chuck 4, and when the green tire G is put in, the tire specifications are met. The first and second cylinders 17 and 18 are operated so as to move the injection nozzles 23a and 23b.

Meanwhile, the positions of the first, second and third spray nozzles 30, 31, and 32 are also adjusted while the spray nozzles 23a and 23b are moved into the green tire G. In this case, the second spray unit 15 The nozzle horizontal movement element, the nozzle vertical movement element, and the nozzle width adjustment element constituting the s, are calculated by arithmetic processing between the numerical values recorded by the detectors 35, 42, and 51 and the parameters arbitrarily set on the operation panel 33. The operation is controlled.

That is, the horizontal positions of the first, second, and third injection nozzles 30, 31, and 32 are adjusted by the horizontal moving cylinder 28 operated according to the control power applied from the programmable logic controller. When the 28 is contracted, the horizontal moving member 29 installed at the rod end slides in the horizontal direction along the guide rail 27, and thus the first, second, and third spray nozzles 30, 31, and 32 are shown in FIG. Is moved to the right side, and the number of horizontal movements is recorded in the detector 35, and the operation of the horizontal movement cylinder 28 is stopped when the horizontal distance setting value already input and the recorded value of the detector 35 are the same. Let's go.

In addition, when the horizontal position of the injection nozzle is adjusted as described above, the control power is applied to the vertical movement cylinder 40 and the motor 45 again, so that the first, second, third injection nozzles 30, 31, and 32 at the intermediate position of the tire are applied. ), The first, first, third, and third injection nozzles 30, 31, and 32 are simultaneously raised in the vertical direction when the vertical movement cylinder 40 is operated, and the raised distance is recorded in the detector 42. If the height detection value of the tire and the value of the detector 42 are the same, the operation of the vertical movement cylinder 40 is stopped.

When the vertical positions of the first, second, and third spray nozzles 30, 31, and 32 are determined as described above, the motor 45 may be used to effectively spray the release agent to the sidewall portion of the tire according to the standard of the green tire. By applying a forward rotation signal or a reverse rotation signal, the positions of the first spray nozzles 30 and the third spray nozzles 32 are secondarily adjusted.

That is, when the motor 45 is rotated forward, as the inner sleeve 48 is rotated and the external sleeve 49 screwed thereto is operated, the first spray nozzle 30 and the third spray nozzle 32 are rotated. When the interval between the openings and the motor 45 is reversely rotated, the first injection nozzle 30 and the third injection nozzle 32 are narrowed again. These first and third injection nozzles 30, The relative movement of 32 stops according to the control signal applied to the motor 45 from the programmable logic controller when the moving distance value and the value of the detector 51 are equal.

Then, when the movement of the nozzles (23a, 23b, 30, 31, 32) is completed according to the type of tire as described above to the inside and outside of the green tire (G) in accordance with the injection pressure and the injection width of the already set automatic injection nozzle. The release agent is to be sprayed, the nozzles according to the present invention is to be able to automatically adjust the injection pressure up to 2 to 5 atm, the cylinders described in the present invention is operated by the hydraulic example as an example to be operated by pneumatic or hydraulic pressure Can be.

On the other hand, the present invention can be used not only for injecting the release agent to the tire, but also can be widely used for various uses, and of course, can be modified in various ways within the scope of the invention.

According to the releasing agent injector according to the present invention as described above, the releasing agent is simultaneously injected into and out of the tire at the appropriate injection width and injection pressure by automatically adjusting the position of the nozzle according to the tire size measured by grabbing the green tire with the chuck By doing so, it is possible to effectively prevent the over-injection or uninjection of the release agent, which has the advantage of preventing the production of bad tires.

Claims (5)

The position shifting means (A) for moving the green tire (G), which is mounted on the support plate (2) attached via a plurality of vertical support plates (1) fixed to the floor, and the cylindrical green tire (G) 4) the tire raising means (B) for raising up to, the tire size measuring means (C) for measuring the size of the green tire (G) bitten by the chuck (4), and a plurality of nozzles, respectively, inside or outside the tire Release agent injection means comprising a release agent injection means (D) for injecting the release agent, a release agent drying means (E) for drying the green tire in which the release agent is injected at room temperature for a predetermined time, and a tire discharge means (F) for discharging the dried tire In the apparatus, The tire size measuring means (C) is an outer diameter measuring sensor (10) for measuring the outer diameter of the green tire (G) gripped by the chuck (4) is fixed via the vertical support plate (1), and the vertical support plate (1) And a width measuring sensor 12 mounted on the guide 11 and measuring the width of the green tire G held by the chuck 4 while being lifted along the guide 11. Release agent injector, characterized in that. According to claim 1, wherein the release agent spraying means (D) is a first spraying unit 14 for injecting the release agent to the inner surface of the green tire (G), and a second spraying unit for injecting the release agent to the outer surface of the tire ( 15) The first spraying unit 14 is guided while being lifted through the first and second cylinders 17 and 18 mounted in the vertical direction to the support frame 16 and the first and second cylinders 17 and 18, respectively. A first support rod 20 and a second support rod 21 through which the vertical movement is guided by 19, connecting bars 22a and 22b fixed to the first and second support rods 20 and 21; And injection nozzles 23a and 23b mounted on the upper ends of these connecting bars 22a and 22b, respectively. The second spraying unit (15) is characterized in that the nozzle horizontal moving element, the nozzle vertical moving element and the nozzle width adjusting element characterized in that the release agent injection device. 6. The nozzle horizontal moving element according to claim 5, wherein the nozzle horizontal moving element is provided with a guide rail (27) installed in a horizontal direction above the support frame (25) via a bracket (26), and horizontally mounted with the guide rail (27). Horizontal moving member 29 supported by the moving cylinder 28, the horizontal moving cylinder 28 and the auxiliary frame 24 and slid on the guide rail 27 by the horizontal moving cylinder 28, the horizontal The first spray nozzle 30, the second spray nozzle 31 and the third spray nozzle 32, which are mounted via the nozzle vertical moving element and the nozzle width adjusting element mounted on the moving member 29, the auxiliary frame ( And a detector (35) attached to (24) to sense the number of times the horizontal member (29) moves and to apply control power to the programmable logic controller. The method of claim 5, wherein the nozzle vertical movement element is a vertical movement cylinder 40 fixed to the horizontal movement member 29, and the second vertical movement cylinder is connected to it while sliding up and down in the vertical direction through the vertical movement cylinder (40) It is installed on the support plate 41 for individually operating the injection nozzle 31 and the horizontal moving member 29 to detect the number of times of movement of the second injection nozzle 31 to apply the control power to the programmable logic controller. Release agent injector, characterized in that having a detector (42). The motor of claim 5, wherein the nozzle width adjusting element is mounted on the horizontal moving member 29 and is rotated forward and reverse according to a control signal transmitted from the programmable logic controller, and the housing 46. ), The inner force 48 coupled to the motor 45, the inner sleeve 48 coupled to the rotational force transmission shaft 47, and the inner sleeve 48 connected to the motor 45. Adjusting member for moving the first spray nozzle 30 and the third spray nozzle 32 at the same time, having an external sleeve 49 is moved up and down with a predetermined stroke in accordance with the rotation of the motor 45 And a detector (51) which detects an operating position of the first spray nozzle (30) and the third spray nozzle (32) and sends a control signal to a programmable logic controller. Device.