Passive tire color line application device

Abstract

The present invention relates to a passive tire color line application device capable of forming a color line by applying an application liquid to the surface of a product such as a tire. The passive tire color line application device according to the present invention comprises: at least one passive dispenser; and a frame in which the passive dispenser is installed. The passive dispenser comprises: a body unit having a transfer channel formed therein to receive an application liquid from an application liquid storage part; a supply unit installed in the transfer channel of the body unit to supply an application liquid; a rotating bracket rotatably installed in front of the body unit and having a connection channel formed to have one end connected to the transfer channel of the body unit; and an application unit connected to the other end of the connection channel and including a nozzle body for discharging the application liquid supplied through the connection channel such that the application liquid is applied to the surface of the marking target, thereby forming a color line. The nozzle body comprises: a connection pipe body connected to the other end of the connection channel to receive the application liquid discharged through the connection channel; a needle guide unit installed on one side of the connection pipe body to control the supply of the application liquid; and a discharge needle installed on one side of the needle guide unit to apply the application liquid to the surface of the marking target.

Description

Manual tire color application device

[0001] The present invention relates to a manual tire color line application device capable of forming a color line by applying a coating liquid to the surface of a product such as a tire, and to a manual tire color line application device capable of applying a color line through a manual dispenser that does not require separate power.

[0002] Generally, paint is applied to the surface of tire tread extrusions produced from the extrusion process to form color lines, for the purpose of product management to identify specifications and uses or to improve appearance quality; various manual tire color line application devices have been developed and are being used to achieve automation and accuracy in color line application.

[0003] For example, Korean Registered Utility Model No. 20-0426884 discloses a manual tire color line application device for applying a color line to the surface of a tire extrusion, comprising: a body part that receives paint from a paint storage hopper and has a transfer path formed inside to have a paint flow; a power transmission part installed on the lower side of the body part and providing power to discharge the paint; a discharge part installed on the transfer path of the body part and receiving power from the power transmission part to discharge the paint on the transfer path to the front of the body part; and a color line application part installed to be rotatable on the front side of the body part, communicating with the transfer path, and receiving the paint discharged to the front of the body part by the discharge part and applying it to the surface of the tire extrusion, the tire tread.

[0004] As another example, Korean Registered Utility Model No. 20-0441757 describes a manual tire color line application device comprising: a body part receiving a coating liquid from a storage hopper and having a transfer path and a feedback path formed inside; a power transmission part installed on the lower part of the body part and providing power for discharging the coating liquid; a discharge part installed on the transfer path of the body part and receiving power from the power transmission part to discharge the coating liquid on the transfer path to the front of the body part; a pivot bracket rotatably connected to the front of the body part and having a communication hole communicating with the transfer path of the body part; and a color line application part communicating with the pivot bracket and having a needle inserted and coupled at its tip to apply the discharged coating liquid to the surface of a tire tread, wherein the manual tire color line application device is characterized by being configured to increase the discharge pressure of the coating liquid by installing a push-button switch at the rear end of the body part so as to selectively block the feedback path connected on the transfer path of the body part. Details regarding the device have been disclosed.

[0005] However, conventional tire color marking devices had the problem of severe wear and damage to internal parts due to repeated ink use, and a shortened service life.

[0006] In addition, conventional tire color line application devices had problems such as poor drying performance due to a center aggregation state where the ink application cross-section was formed in a semicircular shape, and quality degradation caused by color line transfer.

[0007] [Prior Art Literature]

[0008] [Patent Literature]

[0009] (Patent Document 1) Korean Registered Utility Model No. 20-0426884 (Publication Date: September 20, 2006)

[0010] (Patent Document 2) Korean Registered Utility Model No. 20-0441757 (Publication Date: September 5, 2008)

[0011] (Patent Document 3) Korean Registered Patent No. 10-1312444 (Publication Date: Oct. 14, 2013)

[0012] (Patent Document 4) Korean Registered Utility Model No. 20-0303533 (Publication Date: Feb. 12, 2003)

[0013] The present invention aims to solve the problems of the prior art as described above by providing a manual tire color line application device that can apply color lines to tires using a manual dispenser that does not require separate power, while improving wear resistance and chemical resistance, thereby improving overall durability.

[0014] In addition, the present invention provides a manual tire color line application device that facilitates replacement due to wear and damage to internal parts and reduces maintenance costs by minimizing the extent of such replacement.

[0015] In addition, the present invention provides a manual tire color line application device capable of uniform ink application and quality improvement by introducing a structure that minimizes color line transfer.

[0016] In addition, the present invention provides a manual tire color line application device that can further improve the efficiency and accuracy of tire color line application through an optimized structure of a frame in which a non-powered manual dispenser is installed.

[0017] The technical problems that the present invention aims to solve are not limited to those mentioned above, and other unmentioned technical problems will be clearly understood by those skilled in the art from the description below.

[0018] The manual tire color line application device according to the present invention for achieving the technical problem described above comprises at least one manual dispenser; and a frame on which the manual dispenser is installed; wherein the manual dispenser comprises: a body part having a transfer channel formed therein for receiving a coating liquid from a coating liquid storage part; a supply part installed on the transfer channel of the body part for supplying a coating liquid; and a coating part that forms a color line by applying a coating liquid to the surface of a marking object, comprising a pivot bracket installed to be rotatable in front of the body part and having a connecting channel formed therein connected to one end of the transfer channel of the body part, and a nozzle body connected to the other end of the connecting channel and discharges the coating liquid supplied through the connecting channel; wherein the nozzle body comprises a connecting pipe body connected to the other end of the connecting channel to receive the coating liquid discharged through the connecting channel, a needle guide part installed on one side of the connecting pipe body to control the supply of the coating liquid, and a discharge needle installed on one side of the needle guide part to apply the coating liquid to the surface of the marking object.

[0019] In addition, the manual tire color line application device according to the present invention may be configured to include: an upper coupling part in which the body part is located at the top and receives an application liquid from a hopper; a driving coupling part formed in communication with the upper coupling part and coupled to a driving part; a nozzle coupling part formed in communication with the driving coupling part and coupled to the application part; and a rotation limiting part coupled to the front of the nozzle coupling part and limiting the rotation of the rotation bracket.

[0020] In addition, the manual tire color line application device according to the present invention may be configured to include: a coupling plate in which the rotation limiting part is coupled to the front surface of the nozzle coupling part with a predetermined incline; a rotation adjustment bolt bolted to the coupling plate; and a rotation cap coupled to the upper end of the rotation adjustment bolt, so as to enable rotation of the rotation adjustment bolt.

[0021] In addition, the manual tire color line application device according to the present invention may be configured to further include a feedback channel in which the body part is connected to the transfer channel and the application liquid transferred through the transfer channel to the application part located in front by the operation of the supply part is bypassed to regulate the discharge pressure of the application liquid.

[0022] In addition, the manual tire color line application device according to the present invention may further comprise a needle connector that connects the nozzle body to the discharge needle and the needle guide portion, and a needle clamp that is hinge-coupled to one end of the outer surface of the needle guide portion and locks the rear end of the needle connector to support the discharge needle by the discharge pressure of the application liquid when the discharge needle is inserted and coupled, thereby preventing the discharge needle from detaching from the connecting pipe.

[0023] The manual tire color line application device according to the present invention can apply color lines to tires through a manual dispenser that does not require power, and improves wear resistance and chemical resistance, thereby improving overall durability.

[0024] In addition, the manual tire color line application device according to the present invention can further improve the efficiency and accuracy of tire color line application through an optimized structure of a frame in which a non-powered manual dispenser is installed.

[0025] In addition, the manual tire color line application device according to the present invention introduces a component capable of pressing the nozzle, such as a rotation limiting part (500), so that when application is performed on the rubber surface of the tire tread, uniform application is possible, thereby minimizing the occurrence of color line transfer, and thus the quality of the tire product can be improved.

[0026] FIGS. 1 and FIGS. 2 are overall configuration diagrams of a manual tire color line application device according to one embodiment of the present invention.

[0027] FIG. 3 is a cross-sectional view showing a manual dispenser according to one embodiment of the present invention.

[0028] FIG. 4 is a conceptual diagram showing (a) a state in which a needle connector with a discharge needle installed is inserted and coupled to a needle guide part using a needle clamp in a nozzle body provided in the dispensing part of a manual dispenser according to one embodiment of the present invention, and (b) a state in which a needle connector with a discharge needle installed is detached from the needle guide part.

[0029] FIG. 5 is a cross-sectional view showing a part of a manual dispenser according to one embodiment of the present invention.

[0030] FIG. 6 is a partially exploded perspective view of a manual dispenser according to one embodiment of the present invention.

[0031] FIG. 7 is a diagram showing the configuration of a rotation limiting part according to one embodiment of the present invention.

[0032] FIG. 8 is a drawing illustrating the state in which ink is applied to the tread rubber surface through a manual dispenser according to one embodiment of the present invention.

[0033] FIG. 9 is a conceptual diagram showing an example of a supply unit installed according to one embodiment of the present invention.

[0034] Below, with reference to the attached drawings, embodiments of the present invention are described in detail so that those skilled in the art can easily implement the invention. However, since the description of the present invention is merely an example for structural or functional explanation, the scope of the rights of the present invention should not be interpreted as being limited by the embodiments described in the text. That is, since the embodiments are subject to various modifications and may take various forms, the scope of the rights of the present invention should be understood to include equivalents capable of realizing the technical concept. Furthermore, the objectives or effects presented in the present invention do not imply that a specific embodiment must include all of them or only such effects; therefore, the scope of the rights of the present invention should not be understood as being limited by them.

[0035] The meaning of the terms described in this invention should be understood as follows.

[0036] Terms such as "first" and "second" are intended to distinguish one component from another, and the scope of rights shall not be limited by these terms. For example, the first component may be named the second component, and similarly, the second component may be named the first component. When a component is referred to as being "connected" to another component, it should be understood that it may be directly connected to that other component, or that there may be other components in between. Conversely, when a component is referred to as being "directly connected" to another component, it should be understood that there are no other components in between. Meanwhile, other expressions describing the relationship between components, such as "between" and "exactly between," or "adjacent to" and "directly adjacent to," shall be interpreted in the same manner.

[0037] A singular expression should be understood to include a plural expression unless the context clearly indicates otherwise, and terms such as "include" or "have" are intended to specify the existence of the set-up features, numbers, steps, actions, components, parts, or combinations thereof, and should be understood not to preclude the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0038] Unless otherwise defined, all terms used herein have the same meaning as generally understood by those skilled in the art to which this invention pertains. Terms defined in commonly used dictionaries should be interpreted as having meanings consistent with the context of the relevant technology and should not be interpreted as having an ideal or overly formal meaning unless explicitly defined in this invention.

[0039] The present invention will be described in detail below with reference to the drawings.

[0040] Referring to FIGS. 1 and 2, a manual dispenser (10) according to the present invention may include a body part (100), a supply part (200), and a coating part (300) to form a structure for applying a color line to the surface of a marking object (T) that is transported by a conveyor (C) in a certain direction and at a certain speed. At this time, the marking object (T) may be a tire tread.

[0041] And the manual tire color line application device according to the present invention may be configured to include a manual dispenser (10), a hopper (20), a moving frame (30), a connecting frame (40), a fixed frame (50), an up-and-down movement control handle (60), and a left-and-right movement control handle (70).

[0042] First, regarding the overall structure of the manual tire color line application device according to the present invention, a hopper (20) may be coupled to the upper part of a manual dispenser (10), and a coating liquid, i.e., paint, for color line application may be introduced into the hopper (20). In addition, the manual dispenser (10) may be coupled to a movable frame (30) and installed to enable vertical and horizontal movement.

[0043] The fixed frame (50) is a frame that is coupled to and fixed to the conveyor (C), and a connecting frame (40) may be formed between the moving frame (30) and the fixed frame (50). This connecting frame (40) may be configured to include a gear module that enables vertical movement and a gear module that enables horizontal movement.

[0044] At this time, the connecting frame (40) is equipped with an up-and-down movement control handle (60) and a left-and-right movement control handle (70), so that the manual dispenser (10) can be moved up and down or left and right by an operator.

[0045] Referring to FIGS. 3 to 6, the structure of the manual dispenser (10) according to the present invention is examined in detail. The body portion (100) provided in the manual dispenser (10) is connected to a coating liquid storage portion (not shown) and a connecting means such as a pipe or tube, and can receive a coating liquid from the coating liquid storage portion (not shown). A transfer channel (110) is formed inside so that the received coating liquid can be supplied to a supply portion (200) to be described later.

[0046] Additionally, the body portion (100) may have a structure in which a feedback channel (130) connected to the transfer channel (110) is additionally formed inside, and the feedback channel (130) is connected to the transfer channel (110) and provides a passage through which the coating liquid transferred through the transfer channel (110) to the coating portion (300) located in front by the operation of the supply portion (200) can be diverted to control the discharge pressure of the coating liquid. In particular, the feedback channel (130) can maintain a constant discharge pressure by automatically diverting the coating liquid through the feedback channel (130) when the discharge pressure of the coating liquid by the supply portion is high, and the coating liquid diverted through the feedback channel (130) forms a structure in which it is supplied back to the supply portion (200) through the transfer channel (110). The transfer channel (110) and the feedback channel (130) may form a structure in which they are partitioned by a partition wall installed inside the body portion (100).

[0047] Additionally, the body portion (100) may have a structure that further includes a bypass valve installed on the feedback channel (130), and the bypass valve (140) serves to control the coating liquid to bypass the feedback channel (130). The bypass valve (140) can regulate the discharge pressure of the coating liquid supplied to the supply portion (200), and can form a structure that opens when the discharge pressure is excessively high to allow the coating liquid to bypass through the feedback channel (130), and closes when the discharge pressure is low to prevent the coating liquid from bypassing through the feedback channel (130), thereby maintaining the discharge pressure at a constant level.

[0048] In addition, the body part (100) may be configured to additionally include a pressure control member (150) that is coupled through one side of the body part so that when foreign substances are stuck in the coating part (300) to be described later and the discharge of the coating liquid is not smooth, the coating liquid is not supplied to the feedback channel (130), thereby increasing the discharge pressure and removing foreign substances remaining in the coating part.

[0049] The above pressure adjustment member (150) may have a structure comprising: a piston rod having a structure in which a packing member (152) is installed on one side of the body part (100) so as to hermetically seal one end of the feedback path (130) and the other side is exposed to the outside of the body part (100); a rod cover coupled to the piston rod and coupled to a receiving hole formed on one side of the body part (100); and an elastic member installed between the rod cover and the piston rod and coupled along the outer surface of the other end of the piston rod.

[0050] A pressure control device (150) having the above-described structure can apply external force to apply pressure, thereby hermetically sealing one end of the feedback channel (130) with the packing member to block the supply of coating liquid to the feedback channel (130), preventing the coating liquid from being supplied to the feedback channel (130), and thereby increasing the discharge pressure to remove foreign substances remaining in the coating part, and can form a structure that returns to its original position when the external force is removed by being equipped with an elastic member.

[0051] Meanwhile, the supply unit (200) is installed on the transfer channel (110) of the body part and can supply the coating liquid to the coating unit (300) to be described later. The supply unit (200) can be formed using a conventional supply means, such as a gear pump used for fluid supply.

[0052] Specifically, the supply unit (200) is rotatably coupled to an upper rotating shaft and a lower rotating shaft (A), respectively, installed on the transfer channel (110) of the body unit, and includes an upper gear (210) and a lower gear (220) with teeth formed on their surfaces. The upper rotating shaft or the lower rotating shaft is connected to a driving means and receives rotational power through the rotation of the driving means to rotate, thereby causing the upper gear (210) and the lower gear (220) to rotate simultaneously to discharge the discharge liquid to the coating unit (300). The coating liquid supplied to the supply unit (200) through the transfer channel (110) is transported along the tooth surfaces and space of the upper gear (210) and the lower gear (220) and forms a structure to be discharged forward.

[0053] The coating liquid passing through the supply unit (200) by the rotation of the upper gear (210) and lower gear (220) is transferred to the nozzle body (320) of the coating unit (300) along the forward transfer path (110) of the body unit (100) by the discharge pressure, and at the same time, the nozzle body (320) applies the coating liquid onto the surface of the marking target (T) being transferred. The driving means may be a driving motor that rotates by receiving power separately or a power transmission gear (430, 440) of the driving unit (400) to be described later, but is not limited thereto.

[0054] Meanwhile, the discharge unit (300) is installed on the front side of the body unit (100) and is connected to the transfer channel (110) of the body unit to receive the coating liquid discharged through the supply unit (200) and form a color line on the marking target (T).

[0055] To this end, the discharge unit (300) has a structure including a rotating bracket (310), a nozzle body (320), and a connecting member (330).

[0056] The above-mentioned pivot bracket (310) is rotatably installed on the front side of the body part (100), and a connecting channel (311) is formed with one end connected to the transfer channel (110) of the body part so as to supply the coating liquid to the nozzle body (320) to be described later.

[0057] The nozzle body (320) is connected to the other end of the connecting channel (311) and can apply a coating liquid discharged through the connecting channel (311) to the surface of the marking target (T) to apply a color line of uniform thickness in a straight line. The nozzle body (320) may use a discharge nozzle that forms a structure connected to the rotating bracket (310), but is not limited thereto, and may also use a composite body including a connecting pipe (321), a needle guide part (322), a discharge needle (323), a needle connector (324), and a needle clamp (325) for fine control of the coating liquid.

[0058] The above connecting tube (321) has a circular tube-shaped structure with a length in the forward and backward directions in which the coating liquid is transported, and a receiving space for transporting the coating liquid is formed inside, and is connected to the other end of the connecting channel (311) of the above rotating bracket (310) so as to supply the coating liquid discharged through the connecting channel (311) to the discharge needle (323).

[0059] The needle guide portion (322) is installed between the connecting tube (321) and the discharge needle (323). The discharge needle (323) is installed on one side of the needle guide portion (322) and can be implemented using a circular tubular structure that forms a structure capable of fine application of the coating liquid by having a hole diameter smaller than that of the connecting tube (321).

[0060] The above needle connector (324) serves to connect the discharge needle (323) and the needle guide portion (322), and forms a structure in which the discharge needle (323) is installed at one end and a tube extending from the needle guide portion (322) is installed at the other end, and a discharge flow path is formed inside so that the coating liquid is discharged through the discharge needle (323).

[0061] The needle clamp (325) is a structure hinged to one end of the outer surface of the connecting tube (321) or the needle guide (322), and locks the rear end of the needle connector (324) connected to the discharge needle (323) to support the discharge needle (323) by the discharge pressure of the coating liquid, thereby preventing the discharge needle (323) from detaching from the connecting tube (321). By rotating the needle clamp (325), a structure is formed that allows for easy attachment and detachment of the discharge needle (323), thereby enabling easy installation of discharge needles (323) of various diameters and forming a structure that allows for easy adjustment of the line width of the color line.

[0062] One end of the connecting member (330) is connected to one side of the rotating bracket (310), and the other end is connected to a connecting bar (B) installed on one side of the outside of the body part (100) to support the rotating bracket (310) and provide elasticity, thereby facilitating angle adjustment of the nozzle body (320). It forms a structure such that the end of the nozzle body (320) elastically contacts the surface of the marking object (T), so that even if the surface of the marking object (T) being transported via a conveyor is not flat, it can flexibly adapt to the angle formed by the nozzle body (320) and the marking object (T). That is, since the coating liquid is applied to the surface of the marking object (T) being transported while freely rotating automatically, it not only forms a uniform coating film but also prevents damage to the marking object (T), thereby preventing quality degradation.

[0063] Meanwhile, the dispensing portion (300) of the manual dispenser (10) according to the present invention may additionally include a heating unit (340) installed in the connecting pipe (321) of the discharge portion (300) to control the discharge of the dispensing liquid. The dispensing liquid used to mark a color line on a marking object (T) may be supplied as water-based ink, oil-based ink, water-based paint, oil-based paint, or a mixture thereof.

[0064] Meanwhile, the manual dispenser (10) according to the present invention may include a driving unit (400) that is installed on one side of the lower part of the body part (100) and supports the body part (100) positioned above the marking object (T) from below by making surface contact with the surface of the marking object (T), and can form a structure such that the end of the nozzle body (320) can elastically contact the surface of the marking object (T).

[0065] To this end, the driving unit (400) may have a structure including a driving shaft (410) installed on one side of the lower part of the body part (100), and a driving wheel (420) coupled to the driving shaft (410) and supporting the body part (100) from below by making surface contact with the surface of the marking object (T) and positioned on the upper part of the marking object (T). A manual dispenser (10) equipped with a driving unit (400) having such a structure is positioned with the driving wheel (420) in contact with the surface of the marking object (T) which is transported by a conveyor in a certain direction and at a certain speed, and forms a structure in which the driving wheel (420) rotates and drives as the marking object (T) is transported by the conveyor in a certain direction and at a certain speed.

[0066] The above driving unit (400) may additionally include first and second power transmission gears (430, 440) coupled to the driving shaft (410) to rotate the upper gear (210) or lower gear (220) of the supply unit (200).

[0067] Specifically, the first power transmission gear (430) may be coupled to the drive shaft (410) to form a structure that receives rotational power from the drive wheel (420) and rotates. The second power transmission gear (440) is gear-coupled with the first power transmission gear (430) and transmits secondary power, and is coupled to the upper rotation shaft or lower rotation shaft of the supply unit (200) to rotate the upper gear (210) or lower gear (220) of the supply unit (200), thereby controlling the drive of the supply unit (200) to discharge the coating liquid supplied to the transfer path (110) to the discharge unit (300).

[0068] In the present invention, the body portion (100) may be configured to include: an upper coupling portion (101) located at the top and receiving a coating liquid from a hopper; a driving coupling portion (102) formed in communication with the upper coupling portion (101) and coupled to a driving portion; and a nozzle coupling portion (103) formed in communication with the driving coupling portion (102) and coupled to the coating portion. Additionally, it may be configured to include a rotation limiting portion (500) coupled to the front of the nozzle coupling portion (103) and limiting the rotation of the rotating bracket.

[0069] At this time, the rotation limiting part (500) may be configured to include a coupling plate (510) coupled to the front of the nozzle coupling part (103) with a predetermined incline; a rotation adjustment bolt (520) bolted to the coupling plate (510); and a rotation cap (530) coupled to the upper end of the rotation adjustment bolt (520) to enable rotation of the rotation adjustment bolt (520). Additionally, if necessary, the combination of the rotation adjustment bolt (520) and the rotation cap (530) may be configured in the form of a headless bolt.

[0070] In addition, the rotation adjustment bolt (520) is configured so that its lower end contacts the rotation bracket (310), so that the degree of pressure applied to the rotation bracket (310) may vary depending on the rotation of the rotation adjustment bolt (520).

[0071] For example, a worker can rotate the rotation cap (530) to rotate the rotation adjustment bolt (520), and accordingly, the rotation adjustment bolt (520) can be moved in the up and down direction of the coupling plate (510). When the rotation adjustment bolt (520) moves downward, that is, toward the rotation bracket (310), the rotation bracket (310) can be further pressed.

[0072] The rotation limiting part (500) configured as above operates as a type of pressing device, and by the rotation limiting part (500) pressing the coating part (300) consistently, it is possible to form a uniform coating film on the tread rubber surface. In addition, by strengthening the ink adhesion, the occurrence of color line transfer can be minimized.

[0073] FIG. 8 is a drawing illustrating the state of applying ink to the tread rubber surface through a manual tire color line application device. (a) shows a cross-section when the application is performed on the tread rubber surface in a configuration where the rotation limiting part (500) is not installed, and (b) shows a cross-section when the application is performed on the tread rubber surface in a configuration where the rotation limiting part (500) is installed.

[0074] Referring to FIG. 8(a), when applying ink to the tread rubber surface in a configuration without a rotation limiting part (500), the cross-section of the ink application is formed in a semicircular shape, so it is not applied uniformly to the tread rubber surface (applied at the same height relative to the tread rubber surface). This application state is concentrated at the center and has the disadvantage of poor drying performance. In addition, as color line transfer becomes easier, the defect rate due to color line transfer may increase or lead to a decrease in quality.

[0075] In contrast, referring to FIG. 8(b), when applying to the tread rubber surface in a configuration with a rotation limiting part (500) installed, the ink application cross-section is applied uniformly at the same height relative to the tread rubber surface. This application state allows for the minimization of color line transfer.

[0076] In addition, in the present invention, a coating layer may be formed on the surface of the upper gear (210) and the lower gear (220) as needed. The coating layer may be a coating layer formed by Teflon coating. Teflon has excellent non-stick properties and chemical resistance, so paint, organic compounds, oils, etc. do not adhere to the surface, and it has the advantage of excellent durability. In addition, Teflon has high chemical stability, which has the advantage of allowing the use of various paints.

[0077] In addition, the coating layer may be formed from a silicone-based material. For example, a silicone coating layer may be formed by including at least one of silicone resin, silicone oil, silicone rubber, and fluorosilicone. Silicone-based materials have the advantages of good flexibility, strong non-stick properties, and the ability to form a thin coating film.

[0078] Meanwhile, the supply unit (200) installed in the manual dispenser (10) according to the present invention is equipped with an elastic support wall to prevent the upper gear (210) and the lower gear (220) from coming into direct contact with the body unit (100), thereby suppressing wear of the gears and increasing durability, and reducing the pressure difference between the direction in which the coating liquid flows in and the direction in which it is discharged, thereby increasing pumping efficiency.

[0079] FIG. 9 is a conceptual diagram showing an example of a supply unit installed according to an embodiment of the present invention. Referring to FIG. 9, the supply unit (200) may have a structure in which an upper elastic support wall (230) and a lower elastic support wall (240) are installed to support the outer sides of the upper gear (210) and the lower gear (220) respectively, between the wall surface formed by the upper gear (210) and the body part (100), and extend from the side of the transfer path where the coating liquid is supplied. By doing so, the upper gear (210) and the lower gear (220) are installed at a certain distance apart within the internal receiving space of the body part (100), thereby suppressing the occurrence of wear on the gears and increasing durability.

[0080] In addition, the upper gear (210) and the lower gear (220) are each supported in contact by the upper elastic support wall (230) and the lower elastic support wall (240) on the upper and lower sides, respectively, thereby reducing the pressure difference between the direction in which the coating liquid flows in and the direction in which it is discharged, and increasing the pumping efficiency.

[0081] Specifically, the supply unit (200) having the above-described structure supplies the coating liquid through the inlet channel (110) formed in the body part, and the upper gear (210) and the lower gear (220) mesh with each other and rotate, so that the coating liquid is discharged by the rotation of the upper gear (210) and the lower gear (220).

[0082] The upper elastic support wall (230) and the lower elastic support wall (240) are each fixed at the upper and lower ends and have an extension formed on the side where the coating liquid flows in, and are extended by contact support along the upper and lower outer surfaces of the upper gear (210) and the lower gear (220) to form a curved section with a C-shaped cross section, and are installed at a constant distance from the upper and lower sides of the inner surface of the body part. In the case of a conventional gear pump in which the upper elastic support wall (230) and the lower elastic support wall (240) are not formed as described above, the pressure is low on the side where the coating liquid flows in and high on the side where the coating liquid is discharged due to the rotation of the upper gear (210) and the lower gear (220), causing a pressure difference, and a vortex is generated in the part where the coating liquid is discharged, which has the disadvantage of degrading pumping performance.

[0083] In order to solve such problems, if the upper gear (210) and lower gear (220) are supported using the upper elastic support wall (230) and the lower elastic support wall (240), the pressure generated by the rotation of the upper gear (210) and the lower gear (220) can be cushioned by the upper elastic support wall (230) and the lower elastic support wall (240), thereby reducing the pressure difference. In addition, fluid can move into the gap space formed on the upper and lower sides of the upper elastic support wall (230) and the lower elastic support wall (240), so that the fluid pressure is dispersed to the direction in which the coating liquid flows in, the direction in which the coating liquid is discharged, and the gap space (230a, 240a), thereby increasing the pumping performance.

[0084] Additionally, the upper elastic support wall (230) and the lower elastic support wall (240) each have an extension formed at the upper and lower ends, respectively, on the side where the coating liquid flows in, and a curved section with a C-shaped cross section extends from the extension, and the other end on the side where the coating liquid flows out has a curved open structure formed so that the coating liquid can be discharged by the rotation of the upper gear (210) and the lower gear (220), and the discharge space of the coating liquid can be expanded.

[0085] As described above, the detailed description of the preferred embodiments of the present invention disclosed is provided to enable those skilled in the art to implement and practice the present invention. Although the present invention has been described with reference to preferred embodiments, those skilled in the art will understand that various modifications and changes can be made to the present invention without departing from the scope of the invention. For example, those skilled in the art may utilize each configuration described in the embodiments described above in combination with one another. Accordingly, the present invention is not intended to be limited to the embodiments shown herein, but to be given the broadest scope consistent with the principles and novel features disclosed herein.

[0086] The present invention may be embodied in other specific forms without departing from the spirit and essential features of the invention. Accordingly, the above detailed description should not be interpreted restrictively in all respects but should be considered exemplary. The scope of the invention shall be determined by a reasonable interpretation of the appended claims, and all modifications within the equivalent scope of the invention are included within the scope of the invention. The invention is not intended to be limited to the embodiments shown herein, but to be given the broadest possible scope consistent with the principles and novel features disclosed herein. Furthermore, embodiments may be constructed by combining claims that are not explicitly related in the claims, or by including them as new claims through amendments made after filing.

[0087] [Explanation of the symbol]

[0088] 10 : Manual dispenser

[0089] 20 : Hopper

[0090] 30 : Move frame

[0091] 40 : Connection frame

[0092] 50 : Fixed frame

[0093] 60 : Up-and-down movement control handle

[0094] 70 : Left / Right movement control handle

[0095] 100 : Body part

[0096] 101 : Upper connecting part

[0097] 102 : Driving coupling part

[0098] 103: Nozzle connection part

[0099] 110 : Transfer Euro

[0100] 130 : Feedback Euro

[0101] 140: Bypass valve

[0102] 150 : Pressure regulator

[0103] 200 : Supply unit

[0104] 210: Upper gear

[0105] 220 : Lower gear

[0106] 300 : Color line coating section

[0107] 310 : Rotating bracket

[0108] 311 : Connect Euro

[0109] 320: Nozzle body

[0110] 321: Connecting pipe

[0111] 322 : Needle Guide Department

[0112] 323 : Discharge needle

[0113] 324 : Needle connector

[0114] 325 : Needle clamp

[0115] 330 : Connecting member

[0116] 400 : Drive unit

[0117] 410 : Drive shaft

[0118] 420: Drive wheels

[0119] 430 : 1st power transmission gear

[0120] 440 : Second power transmission gear

[0121] 500: Rotation limiting unit

[0122] 510: Connecting plate

[0123] 520: Rotation adjustment bolt

[0124] 530: Rotating cap

Claims

1. In a manual tire color line application device, At least one manual dispenser; and It is configured to include a frame on which the above-mentioned manual dispenser is installed, and The above manual dispenser is A body part having a transfer channel formed therein for receiving coating liquid from a coating liquid storage part; A supply unit installed on the transfer path of the above-mentioned body part to supply a coating liquid; and A coating unit comprising: a pivot bracket installed to be rotatable at the front of the body portion and having a connecting channel formed therein, one end of which is connected to a transfer channel of the body portion; and a nozzle body connected to the other end of the connecting channel and discharging a coating liquid supplied through the connecting channel, for applying a coating liquid to the surface of a marking object to form a color line. The above nozzle body is, A connecting pipe connected to the other end of the above connecting channel and receiving a coating liquid discharged through the connecting channel, A needle guide part installed on one side of the above connecting pipe body to regulate the supply of coating liquid, and A manual tire color line application device characterized by including a discharge needle installed on one side of the needle guide portion to apply an application liquid to the surface of the marking object.

2. In Paragraph 1, The above body part An upper coupling part located at the top and supplied with coating liquid from a hopper; A driving coupling part formed in communication with the upper coupling part and coupled to the driving part; It includes a nozzle coupling part formed in communication with the above-mentioned driving coupling part and coupled to the above-mentioned coating part; A manual tire color line application device characterized by including a rotation limiting part coupled to the front of the nozzle coupling part and limiting the rotation of the rotation bracket.

3. In Paragraph 2, The above rotation limiting part A coupling plate coupled to the front surface of the nozzle coupling part with a predetermined slope; A rotation adjustment bolt bolted to the above coupling plate; A manual tire color line application device characterized by including a rotating cap coupled to the upper end of the above-mentioned rotation adjustment bolt, which is coupled to enable rotation of the above-mentioned rotation adjustment bolt.

4. In Paragraph 1, A manual tire color line application device characterized by the above-mentioned body part being connected to the above-mentioned transfer path and additionally including a feedback path that regulates the discharge pressure of the application liquid by providing a passage through which the application liquid transferred through the transfer path to the application part located in front by the operation of the above-mentioned supply part is bypassed.

5. In Paragraph 1, The above nozzle body is, A manual tire color line application device characterized by additionally including a needle connector connecting the discharge needle and the needle guide portion, and a needle clamp hinged to one end of the outer surface of the needle guide portion and locking the rear end of the needle connector to support the discharge needle by the discharge pressure of the coating liquid when the discharge needle is inserted and coupled, thereby preventing the discharge needle from detaching from the connecting pipe.

Images