KR102226045B1 - Plastic part manufacturing device for washing machine - Google Patents

Abstract

The present invention relates to an apparatus of manufacturing a plastic component for a washing machine, the apparatus comprising: a static electricity elimination unit which is positioned above a transfer path of a plastic component for a washing machine transferred by a conveyor and removes static electricity within the plastic component during transport; and a foreign substance removal unit which receives and transfers a plastic component from which static electricity has been removed by the static electricity elimination unit, separates and removes foreign substances attached to the plastic component, and includes a first processing unit and a second processing unit, wherein the first processing unit receives the plastic component delivered from the conveyor and blows off foreign substances by spraying air onto the plastic component while ascending and descending, and the second processing unit is located on a downstream side of the first processing unit that transfers the plastic component which has undergone the first processing unit, tilts the plastic component forward, backward, leftward, or rightward during transport, and sprays air to shake off foreign substances again. Accordingly, the apparatus of manufacturing a plastic component for a washing machine according to the present invention can efficiently remove foreign substances attached to a plastic component that is being transferred, thereby exhibiting excellent productivity as a whole.

Description

Plastic part manufacturing device for washing machine

The present invention relates to a manufacturing apparatus that transfers the pre-injected plastic parts for washing machines, applies a matte pigment, puts a seal, and performs a series of processes of removing foreign substances, and in particular, it is possible to efficiently remove foreign substances. , To an apparatus for manufacturing plastic parts for washing machines.

Various home appliances used in the home, for example, washing machines, refrigerators, air conditioners, and televisions are composed of numerous parts. The case forming the exterior of the home appliance is also included in the above-described parts.

In the case, various designs or colors are applied for the high-end product, and most of them are matte pigmented. This is because the case is made by plastic injection method, so if it is not coated with a matte pigment, the product will become shiny and not luxurious.

However, parts molded of plastic are often contaminated by fine dust or other contaminants, as static electricity tends to accumulate inside. This static electricity problem persists even after the matte pigment is applied to the surface of the part, so it must be efficiently removed. In the transfer line of parts or products made of plastic, a device for removing static electricity from the parts or products and removing foreign substances from the parts is required.

As a prior art related to the prevention of static electricity on an object to be transported, Korean Patent Publication No. 10-2018-0103259 (a take-out and transport device including an antistatic agent) has been disclosed. The disclosed transfer device is a take-out and transfer device that sequentially takes out and transfers unit cells loaded in a unit cell loading box for manufacturing an electrode assembly in a battery cell manufacturing process, and operates vertically and horizontally moving vertically and horizontally with respect to the ground. A take-out-transport main body indicating a state and having a vacuum channel for applying a vacuum therein; A static electricity eliminator mounted on the take-out-transport main body to remove static electricity generated when the unit cell is taken out of the unit cell loading box; And at least one vacuum adsorption member mounted at an end of the take-out-transport main body so that the unit cells can be adsorbed by the vacuum applied to the vacuum channel of the take-out-transport main body.

Korean Patent Laid-Open Publication No. 10-2018-0103259 (takeout and transfer device including static electricity eliminator) Korean Patent Publication No. 10-0790539 (Exterior parts and washing machine using the same)

The present invention has been created to solve the above problems, and an object of the present invention is to provide an apparatus for manufacturing a plastic part for a washing machine having good overall productivity since it is possible to efficiently remove foreign substances such as dust attached to a washing machine part made of plastic.

The plastic parts manufacturing apparatus for a washing machine of the present invention as a means of solving the problems to achieve the above object is located above the transfer path of the plastic parts for washing machines that are transferred by a conveyor, and removes static electricity inherent in the plastic parts during transfer. An antistatic unit; It receives and transports plastic parts in a state where static electricity has been removed by the antistatic part, and separates and removes foreign substances attached to the plastic parts.By receiving the plastic parts transferred from the conveyor, air is sprayed on the plastic parts while rising and lowering. 2 that transfers the primary treatment unit for removing foreign substances and the plastic parts located downstream of the first treatment unit and passing through the first treatment unit, but tilts the plastic parts during the transfer back and forth, left and right, and simultaneously sprays air to remove foreign substances again. A foreign material removing unit having a tea treatment unit is included.

In addition, the primary processing unit; A semi-circular drum case that is closed in all directions and is open to the top and provides a bottom surface with a certain curvature, and is rotatably supported by a horizontal support shaft while partially accommodated in the drum case, and a number of air holes are provided on the outer circumferential surface. A hollow porous drum that raises and lowers the plastic part on the outer circumferential surface, a driving unit that rotates the porous drum, and air is pressurized into the porous drum, so that the pressurized air passes through the air hole. An air pressurized part is provided to allow the plastic part in contact with the outer peripheral surface of the porous drum to receive air pressure by ejecting it to the outside of the porous drum.

In addition, the outer circumferential surface of the porous drum and the bottom surface of the drum case have the same curvature to form a gap at regular intervals, and the shaft takes the form of a hollow pipe and is supported so as to be axially rotated in the drum case while being fixed to the porous drum. It is disconnected from the inside of the porous drum, and the air press-in part; A blower for supplying air, a filter for filtering air supplied from the blower, and a supply hose for sending the air purified by the filter to one shaft to allow air to flow into the interior of the porous drum through one shaft, the The driving unit; A drum driving motor fixed to the side of the drum case and outputting rotational force and having a driving sprocket on the driving shaft, a driven sprocket fixed to the other shaft, and a chain connecting the driving sprocket and the driven sprocket, and on the upper part of the porous drum, An intake hood is installed that inhales the air discharged upward from the porous drum and guides it to the outside.

In addition, the secondary processing unit; A pair of horizontal bars extending horizontally and spaced parallel to each other, a plurality of transfer shafts installed to be axially rotated between the level bars, and a plurality of transfer shafts orthogonal to the level bars, and a transfer force to the plastic parts. A plurality of transfer rolls provided, installed on a transfer shaft together with the transfer rolls, have a relatively larger diameter than the transfer rolls, and an inclining disk that tilts the plastic parts transferred by the transfer rolls back and forth, left and right, and a horizontal bar on one side. A shaft driving motor installed on and outputting rotational torque, a dual sprocket fixed at one end of each transfer shaft and connected to each other by a chain, receiving rotational force from the shaft driving motor, and rotating, and transferred by the transfer roll. An upward nozzle part disposed under the conveying path of the plastic parts, an air-injection part which pressurizes air into the upward nozzle part to inject air upwards toward the plastic part, and an air-injection part disposed above the conveying path of the plastic part. , It has an intake hood that inhales the air injected from the upward nozzle and guides it to the outside.

The plastic part manufacturing apparatus for a washing machine of the present invention made as described above has good overall productivity by efficiently removing foreign substances adhering to the plastic part to be conveyed.

1 is a block diagram showing the overall structure of an apparatus for manufacturing a plastic part for a washing machine according to an embodiment of the present invention.
2 is a perspective view for explaining the configuration of the seal mounting portion shown in FIG.
3 and 4 are views for explaining the seal mounting principle of the seal mounting unit shown in FIG. 2.
5 is a cross-sectional view taken along line AA of FIG. 2.
6 is a partial cross-sectional view showing the structure of the gear drive motor and transmission spline of FIG. 2.
7 is a front view of the housing and turntable shown in FIG. 2.
FIG. 8 is an enlarged view of part B of FIG. 7.
9 is a plan view of the turntable of FIG. 7.
10 is a view for explaining the configuration and operation of the anti-static unit and the foreign material removing unit shown in FIG.
11 is a plan view of a foreign material removing unit of FIG. 10.

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

1 is a block diagram showing the overall structure of an apparatus 10 for manufacturing a plastic part for a washing machine according to an embodiment of the present invention.

As shown, the plastic part manufacturing apparatus 10 for a washing machine according to this embodiment includes an air shower part 12, a primer application part 14, a matte pigment application part 16, a drying part 18, and a seal. It includes a mounting part 20, an antistatic part 40, and a foreign material removing part 60.

The components of the plastic parts manufacturing apparatus 10 for washing machines having the above configuration are arranged in series on one production line, and the plastic parts 100 for the washing machine as they are injected are processed to a level that can be put into the assembly line. It is to be, and has a characteristic in the anti-static part 40 and the foreign material removing part 60.

The antistatic part 40 removes static electricity inherent in the plastic parts, and the foreign material removal part 60 is a device that blows foreign materials by applying air pressure to the plastic parts in a state in which static electricity has been removed. Since static electricity is first removed to remove foreign substances, the efficiency of removing foreign substances is very good.

First, the air shower unit 12 injects compressed air onto the surface of the washing machine part injected from the outside to remove foreign substances adhering to the part. The washing machine part injected from the outside is a part as it is injected, and contaminants such as dirt or oil may be on the surface of the washing machine. Therefore, the air shower unit 12 is used to remove the contaminants. The air shower unit 12 may include a compressor that supplies air and a nozzle gun that injects air from the compressor.

The primer application part 14 is a process of applying a primer to the surface of a washing machine part whose surface has been washed by the air shower part 12. The primer is sprayed through the spray nozzle to provide adhesion to the surface of the washing machine parts. The primer application unit 14 includes a primer spraying means.

The matte pigment application unit 16 is a device for applying a matte pigment to the primer layer formed by the primer application unit 14. A matte pigment layer is formed by laminating the prepared matte pigment on the primer layer using a spray device. The drying unit 18 is a device for drying parts of a washing machine in a state where a matte pigment is applied. The drying method of the matte pigment layer may be heat drying or natural drying.

The above-described air shower unit 12, primer application unit 14, matte pigment application unit 16, and drying unit 18 can perform air shower and primer application, matte pigment application and drying for washing machine parts. As long as it exists, it can have a general structure.

The seal mounting portion 20 includes the sealing member 110 in the seal groove 101 in a state in which the plastic part 100 for a washing machine, which has been dried by the drying unit 18, is horizontally fixed on the turntable 23c. It is a device to insert and fix. This seal mounting portion 20 is a device that replaces the conventional manpower.

2 is a perspective view for explaining the configuration of the seal mounting portion 20, Figures 3 and 4 are views for explaining the operation of the seal mounting portion. In addition, FIG. 5 is a cross-sectional view taken along line A-A of FIG. 2, and FIG. 6 is a partial cross-sectional view showing the structure of the gear drive motor and transmission spline of FIG. 2. In addition, FIG. 7 is a front view of the housing and turntable shown in FIG. 2, and FIG. 8 is a view showing an enlarged portion B of FIG. 7. And, FIG. 9 is a plan view of the turntable 23c of FIG. 7.

The plastic part 100 for a washing machine exemplified to describe the washing machine part manufacturing apparatus 10 according to the present embodiment is a part for a washing machine door of a type mounted on the turntable 23c of FIG. 2.

As shown in FIG. 2, the plastic part 100 takes the shape of a substantially square plate through which a central portion is penetrated, and has a seal groove 101 at an edge portion of the through hole. The seal groove 101 is a groove that is open to the top and forms a closed curve, and has a plurality of fitting holes 103 at the bottom. The fitting hole 103 is a hole at a predetermined interval penetrated in the thickness direction of the plastic part 100, and the fitting protrusions 110a of the sealing member 110 are fitted and coupled.

The seal member 110 is a member made of a rubber material extending in the longitudinal direction, and has a thickness capable of filling the inside of the seal groove 101. In addition, a fitting protrusion 110a is formed on one side of the sealing member 110. The fitting protrusion 110a is a protrusion that is press-fitted into the fitting hole 103a in the seal groove 101. Previously, the sealing member 110 was inserted into the seal groove 101 and the fitting protrusions 110a had to be pressed into each of the fitting holes 103. The seal mounting unit 20 shown in FIG. 2 is a device that replaces this process.

As shown, the seal mounting portion 20 includes a support die 21, a turntable 23c, a support frame 24, a first linear motor 25, a second linear motor 26, and a guide tube 27. , A pressing gear 28, a pressing gear driving means, and a controller 22.

The support die 21 is a box-shaped cabinet and houses a drive unit therein. The drive unit outputs a rotational force for rotating the turntable 23c, and has a motor 23a and a speed reducer 23b. The reducer 23b receives rotational force from the motor and rotates the vertical shaft 23d.

In addition, a controller 22 and an emergency switch 22f are installed in front of the support die 21. The controller 22 outputs a control signal for controlling the seal mounting unit 20, and includes a display unit 22a, a normal notification lamp 22b, and an abnormal notification lamp 22c.

The display unit 22a is a touch panel that displays matters related to the operation of the seal mounting unit 20 or inputs an operation desired by the user. For example, it is possible to input the rotational speed of the turntable 23c or the operating speeds of the first, second, and third linear motors 25, 26, and 29.

In addition, the normal notification lamp (22b) is a lamp that is lit when the insertion of the fitting protrusion (110a) to all the fitting holes (103) is normally completed, and the abnormal notification lamp (22c) is a fitting hole in which the fitting protrusion is not inserted. It is a lamp that lights up when it is found. This controller 22 is connected to the sensor 23f on the turntable.

The emergency switch 22f is a switch used in an emergency. When the emergency switch 22f is pressed, all operations of the seal mounting unit 20 are stopped.

The turntable 23c is a horizontal flat plate fixed to the upper end of the vertical shaft 23d and rotates by the operation of the driving unit. On the upper surface of the turntable 23c, a fixing jig 23e, a sensor 23f, a sensor hub 23h, and a communication module 23k are provided. The fixing jig 23e serves to maintain a constant relative position of the plastic part 100 with respect to the turntable 23c. A description of the sensor 23f, the sensor hub 23h, and the communication module 23k will be described later.

The support frame 24 is a structure that is fixed to the support die 21 and provides a support force, and supports the first, second, and third linear motors 25, 26, and 29.

The first linear motor 25 has a first linear guide 25a that is horizontally fixed to the upper end of the support frame 24 and a first slider 25b that slides along the first linear guide 25a. . The position of the first slider 25b is controlled by the controller 22.

Further, the second linear motor 26 has a second linear guide 26a and a second slider 26b. The second linear guide 26a is fixed to the first slider 25b, horizontally extends in a direction orthogonal to the first linear guide, and supports the second slider 26b in a slidable manner. The second slider 26b reciprocates by receiving a control signal from the controller 22.

A description of the third linear motor 29 will be described later.

On the other hand, the guide tube 27 is supported by the second slider 26b, and is guided to the seal groove 101 of the plastic part 100 by passing downward through the sealing member 110 continuously supplied to the external rotor.

The guide tube 27 has an upper tube 27c, a lower tube 27d, and a hinge 27e. The upper tube 27c is a member vertically fixed to the side of the second slider 26b. In addition, the lower tube (27d) is a member connected to the lower end of the upper tube (27c) through the hinge (27e). In particular, the lower end of the lower tube 27d is bent in the moving direction of the washing machine plastic part 100 moving in the direction of arrow h, as shown in FIG. 4.

The cross-sections of the upper tube 27c and the lower tube 27d having the above configuration have the shape shown in FIG. 5. That is, as shown in FIG. 5, it takes the shape of an approximately rectangular cross-section and provides a guide slit 27b on one side. The fitting protrusion 110a of the sealing member 110 is transferred in a state accommodated in the guide slit 27b. The sealing member 110 is constrained to the guide tube 27 and is not twisted during transport.

The hinge 27e connects the upper tube 27c and the lower tube 27d, and acts to fold the lower tube in the direction of arrow g. For example, the mounting of the sealing member 110 is completed and the plastic part 100 is rotated in the direction of arrow g to separate the plastic part 100 from the turntable 23c. Before rotating the lower tube (27d), the electric spline (29k) must be moved in advance in the direction of the arrow h.

A pressing gear 28 is installed at the lower outlet portion 27g of the lower tube 27d. The pressing gear 28 is a disk-shaped member having a gear tooth formed on an outer circumferential surface thereof, and is connected to the lower tube 27d through a gear shaft 28a. Of course, the lower tube (27d) rotates around the gear shaft (28a).

This pressing gear 28 pulls the seal member 110 passing downward through the guide tube 27 in the direction of arrow k. The seal member 110 supplied from the outside is pulled by the pressing gear 28 and guided to the seal groove 101. In addition, the seal member 110 guided to the seal groove 101 is pressed by the pressing gear 28 and is embedded in the seal groove 101. At this time, the fitting protrusion 110a is inserted and fixed in the fitting hole 103.

Further, the pressing gear driving means serves to rotate the pressing gear 28 in the direction of the arrow m at the same time as pressing the pressing gear 28 to the bottom of the seal groove 101. The pressing gear driving means includes a third linear motor 29, a gear driving motor 29e, an extended polygonal rod 29f, and an electric spline 29k.

The third linear motor 29 includes a third linear guide 29a installed horizontally below the first linear guide 25a in the vertical direction, and a third slider 29b installed to be slidable on the third linear guide. ). The third slider 29b receives a control signal from the controller 22 and slides along the third linear guide 29a.

The gear drive motor 29e is mounted on the third slider 29b and outputs a rotational force. The gear drive motor 29e is also controlled by the controller 22. The extended polygonal rod 29f is a square rod that is directly connected to the drive shaft of the gear drive motor 29e, and rotates the shaft by receiving axial rotation power from the gear drive motor 29e. The extended polygonal rod 29f extends horizontally toward the pressing gear 28.

The electric spline 29k is a mechanical element having a straight extension groove 29n capable of accommodating the extended polygonal rod 29f in the central axis and meshes with the pressing gear 28. The electric spline 29k is capable of adjusting its position along the length direction of the extended polygonal rod in a state in which the extended polygonal rod 29f is accommodated in the extension groove 29n, and the rotational force of the gear driving motor 29e is pressed by the gear 28 ).

In addition, a sealing direction guiding portion 25p is installed on one side of the upper portion of the first linear guide 25a. The sealing direction induction part 25p serves to guide the guide tube 27 by passing the sealing member 110 supplied from the outside, and includes the support bearing 25g, the swivel guide 25f, and the introduction tube 25k. Equipped.

The support bearing 25g supports the swivel guide 25f so that it can axially rotate. The swivel guider 25f has an approximately cylindrical shape and can rotate in both directions based on a vertical axis (Z axis). In addition, a horizontal passage 25m is provided inside the swivel guide 25f. The horizontal passage (25m) is a through hole through which the sealing member 110 passes.

In addition, the introduction tube (25k) is fixed to one side of the swivel guide (25f) and serves to receive the seal member supplied from the outside and guide it to the horizontal passage (25m).

The first and second linear motors 25 and 26 having the above configuration transfer the pressing gear 28 installed in the lower tube 27d in the front and rear left and right directions (X and Y directions) and seal groove 101 ) To drive. The plastic part 100 travels along the seal groove 101 while rotating one turn according to the rotation of the turntable.

If the seal groove 101 takes the shape of a ring having a certain diameter, it will not be necessary to move the pressing gear 29 in the front and rear, left and right directions, but as shown in FIG. 2, some part of the seal groove 101 Is a straight line and some parts are arc-shaped, so movement in the front and rear, left and right directions is required.

In any case, the seal member 110 continuously supplied from the outside is filled in the seal groove 101 of the plastic part 100 while the turntable 23c rotates once. The operator cuts the seal member 110 so that the ends of the seal member 110 meet inside the seal groove 101. Insertion of the sealing member 110 is completed.

On the other hand, on the upper part of the turntable 23c, it operates after the insertion of the seal member into the seal groove 101 is completed to determine the accuracy of mounting the seal member 110, and includes a plurality of sensors 23f and a sensor hub. 23h), the communication module 23k is installed. The accuracy of mounting means the accuracy of insertion of the fitting protrusion 110a into the fitting hole 103. If the fitting protrusions 110a are completely inserted into all the fitting holes 103, the accuracy of the shovel is high.

The sensor 23f is disposed vertically below the fitting hole 103 of the washing machine component, and is a sensor that determines whether the fitting hole 103 is blocked by the fitting protrusion 110a. The sensor 23f is an optical sensor.

If the fitting hole 103 is not blocked by the fitting protrusion 110a, the light enters, so if the light is detected, it is determined that the fitting protrusion is not properly inserted. In addition, as shown in FIG. 8, if the fitting hole 103 is completely blocked by the fitting protrusion 110a and does not detect light, it is determined that the insertion of the fitting protrusion 110a for the fitting hole 103 is completed normally. do.

The sensor hub 23h is connected to each sensor 23f through a signal transmission line 23g, and receives the content detected by the individual fit sensor. The communication module 23k is connected to the sensor hub and transmits information (information received from each sensor 23f) collected in the sensor hub to the controller 22.

The controller 22 includes a normal notification lamp 22b that lights up when all of the fitting holes 103 are blocked by the fitting protrusions 110a, and an abnormal notification lamp 22c that lights when some of the fitting holes are not blocked by the fitting protrusions. Has. The operator can check the assembly state of the sealing member 110 to the plastic part 100 that has finished working on the current turntable 23c through the normal notification lamp 22b and the abnormal notification lamp 22c.

On the other hand, when mounting of the seal member 110 is completed through the seal mounting portion 20, the plastic part 100 in which the seal member is mounted is transferred to the antistatic part 40. The antistatic part 40 is located above the conveying path of the plastic parts for washing machines that are conveyed by the conveyor, and removes static electricity inherent in the plastic parts 100 during conveyance. The reason for removing static electricity is to allow the foreign matter removal unit 60 to more easily remove foreign substances such as fine dust attached to the plastic part 100.

FIG. 10 is a view for explaining the configuration and operation of the anti-static unit 40 and the foreign material removing unit 60 shown in FIG. 1, and FIG. 11 is a plan view of the foreign material removing unit 60 of FIG. 10.

As shown, the antistatic unit 40 includes a conveyor 41, a high voltage generator 42, a plurality of position holding hoses 43, and an ion emitter 45. The antistatic part 40 irradiates ions to the plastic parts 100 transported on the conveyor 41 to remove static electricity inherent in the parts 100.

The high voltage generator 42 supplies a high voltage to an antistatic electrode (not shown) to generate ions, and the ion emitter 45 serves as a kind of nozzle for ejecting the generated ions toward the plastic part 100. . In addition, the position holding hose 43 is, so to speak, a hose having a property of maintaining a bent state when bent, so that the ion emitter 45 faces an optimum position and direction.

Since the above-described anti-static unit 40 is a general matter, further description will be omitted. In addition, a voltage application type and a self-discharge type may be applied as the antistatic part.

The plastic part 100 that has passed through the anti-static part 40 enters the foreign material removing part 60 in a state in which static electricity has been removed. The foreign matter removing unit 60 is to remove dust or contaminants adhering to the plastic part 100 and includes a primary processing unit 60A and a secondary processing unit 60B.

The primary treatment unit 60A receives and transports plastic parts in a state in which static electricity has been removed by the antistatic unit 40, and separates and removes foreign substances attached to the plastic parts, and the plastic parts 100 transferred from the conveyor By spraying air to the plastic parts while rising and descending, the drum case 64, the porous drum 62, the driving unit 63, the air inlet 65, and the intake hood 61 are included. .

The rise and fall of the plastic part 100 is expressed based on the height difference of the plastic part with respect to the ground. In other words, when the plastic part 100 is in contact with the outer circumferential surface of the porous drum 62 and rises upward by the rotation of the porous drum, it is regarded as an elevation that increases, and the plastic part 100 Descending from the top vertex is referred to as descending as the altitude decreases.

The drum case 64 is a semicircular case that is closed in all directions and is open to the top and provides a bottom surface 64b having a constant curvature, and supports the porous drum 62 so as to be rotatable in the direction of arrow s. In particular, the bottom surface 64b of the drum case 64 is spaced apart from the outer circumferential surface of the porous drum 62. The outer circumferential surface of the porous drum and the bottom surface of the drum case have the same curvature. The narrower the gap between the bottom and the outer circumferential surface, the better. This is because it is good to keep the pressure inside the porous drum 62 as high as possible.

The porous drum 62 is rotatably supported by a horizontal support shaft 62b while being partially accommodated in the drum case 64. In addition, a plurality of air holes 62a are provided on the outer circumferential surface, and the plastic part 100 is raised and lowered by raising the plastic part 100 on the outer circumferential surface.

That is, the porous drum 62 is a hollow cylindrical member having a predetermined diameter and is supported by the drum case 64 through the support shaft 62b. As shown in FIG. 10, the porous drum 62 rotates in the direction of the arrow s, receives the plastic part 100 that has passed through the conveyor 48, and transfers it to the secondary processing unit 60B.

The plastic part 100 receives the pressure of air ejected through the air hole 62a while riding the porous drum 62. The air ejected through the air hole 62a hits the plastic part 100 and blows away fine dust or contaminants remaining in the part 100.

The support shaft 62b takes the shape of a hollow pipe and is supported so as to be axially rotated on the drum case while being fixed to the porous drum, and as shown in FIG. 11, the two are disconnected from each other. However, the rotation center axes of the two support shafts 62b naturally coincide. The support shaft 62b is fixed to the porous drum 62 by welding or bolting, and the drum case 64 is bearing-supported.

In addition, a driving part 63 is connected to one of the two support shafts 62b. The drive unit 63 includes a drum drive motor 63a, a drive sprocket 63b, a chain 63e, and a driven sprocket 63c.

The drum driving motor 63a is fixed to the outer surface of the drum case 64 and rotates the driving sprocket 63b by power applied from the outside. The driven sprocket 63c is fixed to the end of the support shaft 62b, and is connected to the driving sprocket 63b through a chain 63e. As a result, the porous drum 62 rotates by receiving the rotational force of the drum driving motor 63a.

The air press-in portion 65 supplies air into the porous drum 62 and includes a blower 65a and a filter 65b. The filter 65b is connected to the support shaft 62b through an air supply hose 62c. The air purified while passing through the filter 65b is supplied into the porous drum 62. Reference numeral 62d in FIG. 11 denotes a swivel joint. The swivel joint 62d is a known component that connects the support shaft 62b that rotates axially and the air supply hose 62c that does not axially rotate.

The air guided into the porous drum 62 by the air press-in portion 65 is discharged through the air hole 62a after filling the inside of the porous drum 62. As mentioned above, since the air hole passing through the inside of the drum case 64 among the air holes 62a receives some resistance from the bottom surface of the drum case 64, most of the air is exposed to the upper portion of the air. It is ejected upward through the hole 62a.

In addition, the air blown out to the bottom of the drum case 64 also goes upward along the gap between the outer circumferential surface of the porous drum 62 and the inner circumferential surface of the drum case 64 (since there is no separate hole to escape from the drum case). Erupts. All air supplied by the blower 65a is blown upward and can be applied to the plastic part 100.

The intake hood 61 is disposed above the porous drum 62 and inhales air blown out from the porous drum 62 and guides it to the outside. It goes without saying that a vacuum pump (not shown) is installed in the duct extending from the intake hood 61.

The plastic part 100 from which dust or foreign matter is first removed while riding the porous drum 62 slides down the porous inclined plate 47 and enters the secondary processing unit 60B.

The secondary processing unit 60B is located on the downstream side of the primary processing unit 60A and transfers the plastic parts that have passed through the primary processing unit. As such, it includes a horizontal base (66a), a transfer shaft (66c), a transfer roll (66e), an inclined disk (66f), a driving part, an air press-in part (65), an upward nozzle part (65e), and an intake hood (61).

The horizontal base 66a is a horizontally extended beam, and two are mutually parallel. Further, the transfer shaft 66c is a rotational shaft that is perpendicular to the horizontal stand 66a and supported at both ends so as to be rotatable on the horizontal stand 66a. A plurality of transfer shafts 66c are disposed parallel to each other and spaced apart. In addition, the transfer roll 66e and the tilting disk 66f are fixed to each transfer shaft 66c.

The conveying roll 66e is a roller that moves the plastic part 100 in the direction of an arrow t. The number of the transfer rolls 66e mounted on the transfer shaft 66c may vary as necessary.

The tilting disk 66f is a disk-shaped member having a predetermined diameter, and rotates together with the transfer roll 66e to transfer the plastic part 100. The tilting disk 66f has a diameter larger than that of the transfer roll 66e, and one or two are applied per transfer shaft 66c. However, when the length of the transfer shaft 66c is lengthened, the number of applications of the tilting disk increases naturally.

This tilting disk 66f serves to swing the plastic part 100 back and forth, left and right, during transport. In other words, the plastic part 100 moving in the direction of the arrow t is to be inclined irregularly in the left and right directions and the front and rear directions during movement. By tilting the plastic part 100 in this way, the pressure of air is applied to a portion that was not subjected to air pressure in the primary treatment unit 60A, for example, a groove or a corner portion. Fine dust or foreign matter remaining in grooves or corners is completely removed.

In addition, as shown in Fig. 11, a dual sprocket 68 is fixed to one end of the transfer shaft 66c. The dual sprocket 68 is connected by a chain 69. Accordingly, all the transfer shafts 66c can rotate in the same direction at the same time. In addition, a shaft driving motor 67 is installed at an end of one side of the horizontal stand 66a.

A drive sprocket 67a is fixed to the drive shaft of the shaft drive motor 67. The driving sprocket 67a is connected to the dual sprocket 68 through a chain. Eventually, the transfer roll 66e and the tilting disk 66f rotate by the operation of the shaft driving motor 67.

In addition, an upward nozzle portion 65e is disposed under the transfer shaft 66c. The upward nozzle part 65e blows out the air supplied from the air press-in part 65 to the washing machine parts to blow away dust or foreign matter. Foreign matter separated from every corner of the plastic part 100 is discharged to the outside through the intake hood 61. The washing machine parts from which foreign substances have been removed through the above process are collected and sent to a subsequent assembly line.

In the above, the present invention has been described in detail through specific embodiments, but the present invention is not limited to the above embodiments, and various modifications are possible by those of ordinary skill within the scope of the technical idea of the present invention.

10: production device 12: air shower unit 14: primer application unit
16: matte pigment application part 18: drying part 20: seal mounting part
21: support die 22: controller 22a: display unit
22b: normal alarm lamp 22c: abnormal alarm lamp 22f: emergency switch
23a: motor 23b: reducer 23c: turntable
23d: vertical axis 23e: fixing jig 23f: sensor
23g: signal transmission line 23h: sensor hub 23k: communication module
24: support frame 25: first linear motor 25a: first linear guide
25b: 1st slider 25f: Swivel guide 25g: Support bearing
25k: introduction tube 25m: horizontal passage 25p: sealing direction induction part
26: second linear motor 26a: second linear guide 26b: second slider
27: guide tube 27b: guide slit 27c: upper tube
27d: lower tube 27e: hinge 27g: outlet
28: push gear 28a: gear shaft 29: third linear motor
29a: 3rd linear guide 29b: 3rd slider 29e: Gear drive motor
29f: Extension multi-angle rod 29k: Electric spline 29n: Extension groove
40: antistatic part 41: conveyor 42: high voltage generator
43: position holding hose 45: ion emitter 47: porous inclined plate
48: conveyor 60: foreign matter removal unit 60A: primary treatment unit
60B: secondary treatment unit 61: intake hood 62: porous drum
62a: air hole 62b: support shaft 62c: supply hose
62d: swivel joint 63: driving part 63a: drum driving motor
63b: driving sprocket 63c: driven sprocket 63e: chain
64: drum case 64b: bottom surface 65: air press-in portion
65a: blower 65b: filter 65e: upward nozzle part
66a: horizontal bar 66c: transfer shaft 66e: transfer roll
66f: tilting disk 67: shaft driving motor 67a: driving sprocket
68: dual sprocket 69: chain 100: plastic parts
101: seal groove 103: fitting hole 110: seal member
110a: insertion protrusion

Claims (4)

delete An antistatic unit located above the transfer path of the plastic parts for washing machines transferred by the conveyor and removing static electricity inherent in the plastic parts during transfer; It receives and transports plastic parts in a state where static electricity has been removed by the antistatic part, and separates and removes foreign substances attached to the plastic parts.By receiving the plastic parts transferred from the conveyor, air is sprayed on the plastic parts while rising and lowering. 2 that transfers the primary treatment unit for removing foreign substances and the plastic parts located downstream of the first treatment unit and passing through the first treatment unit, while tilting the plastic parts during the transfer back and forth, left and right, and simultaneously spraying air to remove foreign substances again. Includes a foreign material removing unit having a tea treatment unit,
The primary processing unit; A semi-circular drum case that is closed in all directions and is open to the top and provides a bottom surface of a certain curvature, and is rotatably supported by a horizontal support shaft while partially accommodated in the drum case, and a number of air holes are provided on the outer circumferential surface. A hollow porous drum that raises and lowers the plastic part on the outer circumferential surface, a driving unit that rotates the porous drum, and air is pressurized into the porous drum, so that the pressurized air passes through the air hole. It has an air-injection part that allows the plastic part in contact with the outer peripheral surface of the porous drum to receive air pressure by ejecting it to the outside of the porous drum,
Plastic parts manufacturing device for washing machines. The method of claim 2,
The outer circumferential surface of the porous drum and the bottom surface of the drum case have the same curvature to form a gap at regular intervals,
The support shaft,
It takes the shape of a hollow pipe and is supported to be axially rotated in the drum case while being fixed to the porous drum, and it is disconnected from the inside of the porous drum.
The air press-in part;
A blower that supplies air, a filter that filters air supplied from the blower, and a supply hose that sends the air purified by the filter to one support shaft to allow air to flow into the interior of the porous drum through the one support shaft, and ,
The driving unit;
A drum drive motor fixed to the side of the drum case and outputting rotational force and having a drive sprocket on the drive shaft, a driven sprocket fixed to the other support shaft, and a chain connecting the drive sprocket and the driven sprocket,
On the upper part of the porous drum,
An intake hood is installed that inhales the air discharged upward from the porous drum and guides it to the outside.
Plastic parts manufacturing device for washing machines. The method of claim 2,
The secondary processing unit;
A pair of horizontal bars extending horizontally and spaced parallel to each other;
A plurality of transfer shafts that are installed to be axially rotatable between the horizontal bars and which are orthogonal to the horizontal bars,
A plurality of conveying rolls mounted on the conveying shaft and providing conveying force to plastic parts,
An inclining disk installed on a transfer shaft together with the transfer roll, having a relatively larger diameter than the transfer roll, and tilting the plastic parts transferred by the transfer roll in front and rear, left and right,
A shaft drive motor that is installed on one side of the horizontal platform and outputs rotational torque,
A dual sprocket fixed at one end of each transfer shaft and connected to each other by a chain, receiving rotational force from a shaft driving motor, and rotating,
An upward nozzle part disposed under the conveying path of the plastic part conveyed by the conveying roll,
An air-injection part which pressurizes air into the upward nozzle part, thereby causing the upward nozzle part to inject air upward toward the plastic part,
It is located on the upper part of the conveying path of the plastic part, and has an intake hood that inhales the air injected from the upward nozzle and guides it to the outside,
Plastic parts manufacturing device for washing machines.

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