Pressing device for attaching PU foam

Abstract

The present invention relates to a pressing device for attaching PU foam, and more specifically, to a pressing device for attaching PU foam configured to stably press and fix an object during the process of attaching PU foam to the surface of an object, and to facilitate the adjustment and fixation of the press position. To this end, the present invention provides a pressing device for attaching PU foam to an object by press and fixing the object to attach PU foam to the surface of the object, comprising: a base module formed to have a predetermined height and length; a pair of movable rails installed along a horizontal direction in a spaced-apart state on the upper surface of the base module; a moving plate installed to be movable in the longitudinal direction along the pair of movable rails; a link plate rotatably installed on the moving plate; a pressing module coupled to one side of the link plate and transmitting a fixing pressure while contacting the surface of the object; and a pressure providing means driven by an applied power or control signal to rotate the link plate in an up-and-down direction and provide a pressurizing force to the object through the pressing module. As the link plate rotates according to the driving of the pressure providing means, the pressing module [on the object] It is characterized by being configured to tightly fix the PU foam by applying pressure to the surface.

Description

Technology Field

[0001] The present invention relates to a pressing device for attaching PU foam, and more specifically, to a pressing device for attaching PU foam configured to stably press and fix an object during the process of attaching PU foam to the surface of an object, and to facilitate the adjustment and fixation of the press position. Background Technology

[0002] In general, the process of attaching Polyurethane (PU) foam to the surfaces of various objects—such as automotive parts, electronic housings, and exterior components of industrial equipment—is widely used to provide sound insulation, thermal insulation, or cushioning functions. This PU foam possesses excellent elasticity and cushioning performance, and is applied across various industrial fields to ensure noise reduction, vibration absorption, and thermal insulation capabilities.

[0004] In such PU foam attachment processes, the PU foam is generally attached by applying an adhesive to the surface of the object or using a double-sided adhesive structure, and a process of applying constant pressure is required to ensure that the PU foam adheres uniformly to the surface of the object during the attachment process. In particular, since the adhesion quality of the PU foam is significantly affected by the pressure distribution and the location of pressure application during the pressurization process, a pressurization device is required to stably adhere the PU foam to the surface of the object.

[0006] However, conventional PU foam attachment methods mostly involved workers manually pressing the foam or applying pressure using simple press devices or fixing jigs. These methods could result in variations in pressure depending on the worker's skill level, and there were issues where the pressure position could not be accurately maintained depending on the location or shape of the object.

[0008] In addition, when the size or shape of the object varies, it may be necessary to change the position of the pressure device or replace the jig, which leads to increased preparation time and reduced productivity. In particular, if the pressure position is not maintained consistently, the PU foam may partially lift from the surface of the object or adhesion failure may occur, potentially leading to a decrease in product quality reliability.

[0010] To summarize the problems with the conventional PU foam attachment method in detail, first, there was a problem in that the pressure position could not be easily adjusted.

[0011] Conventionally, most systems applied pressure to PU foam using simple press devices or fixed jigs, which presented a problem in that it was difficult to finely adjust the position of the pressure device when the size or location of the object changed. In particular, on production lines where objects had inconsistent shapes or products of various sizes were mixed, changing the pressure position required reinstalling the equipment or replacing separate jigs, leading to a decrease in work efficiency.

[0013] Second, there was a problem with the non-uniform distribution of the pressure.

[0014] In conventional working methods, the structure of the pressure application unit used to press and attach the PU foam was often simple or relied on manual labor, making it difficult to deliver uniform pressure across the entire surface of the object. Consequently, there was a possibility that the PU foam might partially lift from the surface or that adhesion failures would occur, resulting in reduced product quality stability.

[0016] Third, there was a problem in that it was difficult to handle objects of various shapes.

[0017] Since most conventional pressurizing devices feature a fixed structure for the pressurizing section, there was a problem in that the same device could not be applied as is when the shape of the object or the location where the PU foam is attached changed. Consequently, when the type of object changed during the production process, the inconvenience of having to manufacture a separate jig or replace the device arose.

[0019] Fourth, there was a problem that surface damage to the object could occur.

[0020] In conventional pressurization structures, pressure is often transmitted directly to the surface of an object, which can lead to problems such as scratching or deformation of the surface during the pressurization process. In particular, when the object is made of plastic, has a painted surface, or is a component where appearance quality is critical, such surface damage could potentially lead to product defects.

[0022] Fifth, there was a problem where the quality of work varied depending on the worker's skill level.

[0023] When attaching PU foam manually or semi-automatically, the pressure position and time can vary depending on the operator's skill level, which has led to a problem where quality variations between products can occur even within the same process.

[0025] Moreover, conventional pressurizing devices had a simple structure for the pressurizing part, making it difficult to finely adjust the pressurizing position according to the surface shape of the object, and there was also a possibility of surface damage or deformation occurring as the surface of the object was subjected to direct pressure during the pressurizing process.

[0027] Therefore, there is a need to develop a new structure of a PU foam attachment pressing device that allows for easy adjustment of the pressure position according to the position of the object, fine adjustment of the pressure position in response to objects of various shapes, and stable adhesion of PU foam with constant pressure. Prior art literature

[0028] Republic of Korea Registered Patent No. 10-1814080 (Registered Dec. 26, 2017) Republic of Korea Registered Patent No. 10-1665971 (Registered Oct. 7, 2016) The problem to be solved

[0029] The present invention is proposed to solve the above-mentioned problems and aims to provide a PU foam attachment pressing device configured to stably press and fix an object during the process of attaching PU foam to the surface of an object and to easily adjust the pressure position.

[0031] In addition, another objective of the present invention is to enable the pressure position to be freely adjusted according to the position or size of an object by configuring the moving plate to move along a movable rail installed on a base module.

[0033] In addition, another objective of the present invention is to enable the PU foam to adhere uniformly to the surface of an object by allowing the pressing module to stably press the surface of the object through the interlocking operation of the link plate and the pressure providing means.

[0035] In addition, another objective of the present invention is to enable fine adjustment of the pressure position in response to objects having various shapes and sizes by installing a plurality of pressing means in the pressing module and configuring it to allow adjustment of the position of the pressing rod.

[0037] In addition, another objective of the present invention is to prevent surface damage to an object during the pressurization process by providing a buffer portion at the end of the pressing rod.

[0039] In addition, another objective of the present invention is to ensure that the position of the device is stably maintained during pressurization operations by providing a position fixing structure that can selectively fix the position of the moving plate. means of solving the problem

[0040] To achieve the above objective, the present invention relates to a PU foam attachment pressing device for pressurizing and fixing an object to attach PU foam to the surface of the object, wherein

[0041] A base module formed to have a predetermined height and length;

[0042] A pair of movable rails installed along the horizontal direction on the upper surface of the base module, spaced apart from each other;

[0043] A moving plate installed to be movable in the longitudinal direction along the above pair of moving rails;

[0044] A link plate rotatably installed on the above-mentioned moving plate;

[0045] A pressing module coupled to one side of the above link plate and transmitting fixing pressure while in contact with the surface of an object; and

[0046] A pressure providing means that is driven by an applied power or control signal to rotate the link plate in an up-and-down direction and provide a pressurizing force to an object through the pressing module;

[0047] It is characterized by being configured such that, as the link plate rotates according to the driving of the pressure providing means, the pressing module presses the surface of the object to tightly fix the PU foam.

[0049] In addition, the pressing module is characterized by comprising a pressing plate formed in the shape of a plate having a predetermined area, a plurality of pressing means installed on the pressing plate and abutting a fixed position of an object, and a plurality of installation holes in which the pressing means are installed.

[0051] At this time, the pressing means comprises a pressing rod formed in the shape of a rod extended in the longitudinal direction and a pressing block formed in the shape of a block having a predetermined area, and is characterized in that a cushioning portion is provided at the end of the pressing rod to prevent surface damage to the object.

[0053] Furthermore, the installation hole among the above installation holes in which the pressing rod is installed is characterized by being formed in the shape of an elongated hole extended in the longitudinal direction to allow for position adjustment of the pressing rod.

[0055] In addition, the link plate is characterized by comprising: a pair of links arranged at mutually spaced positions, wherein the pressure providing means is coupled to one side in the longitudinal direction and the pressing module is coupled to the other side; a plurality of connecting bars that connect the pair of links to provide structural rigidity; a connecting plate that combines the links and the pressing module; and a rotating plate that connects the pair of links and the moving plate and is rotatably coupled to the moving plate through a rotation axis.

[0057] In addition, the base module is provided with a plurality of position fixing blocks disposed in the space between the pair of moving rails and installed at mutual intervals along the longitudinal direction of the moving rails, and the moving plate is provided with a pair of position fixing pins that are selectively inserted into and removed from the position fixing blocks, thereby enabling the position adjustment and fixing of the moving plate.

[0059] In addition, the moving plate is characterized by including a pair of supporting supports spaced apart from each other on the upper surface to support the link plate, and a plurality of moving blocks spaced apart on the lower surface to move along the pair of moving rails. Effects of the invention

[0060] The present invention, constructed as described above, has the effect of easily adjusting the pressure position of the pressing device according to the position or size of the object by installing a pair of spaced-apart movable rails on the upper surface of the base module and configuring the moving plate to move along the movable rails in the longitudinal direction. Accordingly, since the pressing module can be accurately positioned at the location where the PU foam is to be attached, the precision of the PU foam attachment position can be improved.

[0062] In addition, a plurality of position-fixing blocks are provided on the base module and a position-fixing pin is formed on the moving plate, configured to be selectively inserted into and removed from the position-fixing blocks, thereby having the effect of fixing the position of the moving plate in stages. Accordingly, since the same working position can be repeatedly reproduced, it has the effect of improving the repeatability of the PU foam attachment position and stably maintaining working precision.

[0064] Furthermore, the present invention is configured such that a link plate rotatably installed on a moving plate and a pressure providing means operate in conjunction, causing a pressing module to apply a constant pressure to the surface of an object, thereby enabling the PU foam to adhere to the surface of an object with uniform pressure. Accordingly, since uniform pressure is transmitted across the entire adhesive surface of the PU foam, it has the effect of improving the adhesive quality of the PU foam and reducing the occurrence of adhesive defects.

[0066] Furthermore, the present invention has the effect of allowing the position of the pressing rod to be freely adjusted by installing a plurality of pressing means in the pressing module and forming the installation hole, where the pressing rod is installed, in the shape of an elongated slot extending in the longitudinal direction. Accordingly, since the pressing position can be finely adjusted according to the shape of the object or the attachment location of the PU foam, it has the effect of enabling operation on products having various shapes and sizes.

[0068] Furthermore, the present invention has the effect of preventing direct impact or pressure concentration on the surface of an object during the pressurization process by providing a pressing rod and a pressing block together in the pressing means and a cushioning part at the end of the pressing rod. Accordingly, it has the effect of preventing surface damage to the object and stably maintaining the appearance quality of the product.

[0070] Furthermore, the present invention is configured such that a pressing module pressurizes an object with a constant pressure by driving a pressure supply means, thereby having the effect of preventing variations in pressing force that may occur in the conventional method where a worker manually presses and attaches PU foam. Accordingly, it has the effect of minimizing variations in work quality caused by the worker's skill level.

[0072] Furthermore, the present invention has the effect of reducing the occurrence of defects such as PU foam lifting, poor adhesion, and poor positioning, as the PU foam attachment operation can be repeatedly performed at a constant pressure and at a constant location through a device by means of the structure described above.

[0074] In addition, since the present invention enables the PU foam attachment process to be performed quickly and stably using a device, the work process can be simplified, thereby improving work efficiency and productivity.

[0076] In addition, since the PU foam attachment process can be performed in an automated or semi-automated manner through a device, the reliance on human labor can be reduced, thereby having the effect of reducing labor costs.

[0078] Therefore, the PU foam attachment pressing device according to the present invention has the effect of improving the precision of the PU foam attachment position, improving adhesive quality through uniform pressure, reducing quality deviations due to operator skill level and decreasing the defect rate, while simultaneously being able to accommodate products of various shapes, improving productivity, and reducing labor costs. Brief explanation of the drawing

[0079] FIG. 1 is an exemplary diagram illustrating a pressing device for attaching PU foam according to the present invention. FIG. 2 is an exemplary diagram illustrating a moving plate constituting the present invention. FIG. 3 is an exemplary diagram illustrating a link plate constituting the present invention. FIG. 4 is an exemplary diagram illustrating a pressing module constituting the present invention. FIGS. 5 and FIGS. 7 are state diagrams illustrating the operating state of a pressing device for attaching PU foam according to the present invention. Specific details for implementing the invention

[0080] In addition to the above objectives, other objectives and features of the present invention will become apparent through the description of embodiments with reference to the accompanying drawings.

[0082] Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as generally understood by those skilled in the art to which the present invention pertains. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and should not be interpreted in an ideal or overly formal sense unless explicitly defined in this application.

[0084] Hereinafter, a preferred embodiment of a pressing device for attaching PU foam according to the present invention will be examined in detail with reference to the attached drawings.

[0086] First, the PU foam attachment pressing device (1) according to the present invention is a PU foam attachment pressing device for attaching PU foam to the surface of an object by pressing and fixing the object, comprising: a base module (10) formed to have a predetermined height and length; a pair of movable rails (20) installed along a horizontal direction in a spaced-apart state on the upper surface of the base module (10); a moving plate (30) installed to be movable in the longitudinal direction along the pair of movable rails (20); a link plate (40) rotatably installed on the moving plate (30); a pressing module (50) coupled to one side of the link plate (40) and transmitting a fixing pressure while contacting the surface of the object; and a pressure providing means (60) driven by an applied power or control signal to rotate the link plate (40) in the up-and-down direction and provide a pressing force to the object through the pressing module (50), wherein the link plate (40) The above-mentioned pressing module (50) is configured to press the surface of the object while rotating to tightly fix the PU foam.

[0088] The above base module (10) is configured to form a basic frame that supports the entire structure of the PU foam attachment pressing device (1) according to the present invention, and provides a base structure for stable installation of the device and support and placement of each component.

[0090] The base module (10) may be formed as a frame structure by combining a plurality of square tubes. Specifically, the base module (10) may be formed as a rectangular box-shaped frame structure by arranging a plurality of square tubes made of metal material in the length and width directions and then welding or fastening them together. With this structure, the base module (10) can secure sufficient rigidity and durability to stably support the entire device.

[0092] A flat plate (11) may be provided on the upper surface of the base module (10) so that a movable rail (20) can be installed. The flat plate (11) is formed to be coupled to the upper frame of the base module and serves to provide a flat upper surface so that the movable rail (20) can be stably installed. In addition, the flat plate (11) may be coupled to the base module (10) by bolt fastening or welding, but is not limited thereto and various fastening methods may be applied.

[0094] A pair of moving rails (20) can be installed along the length direction at spaced intervals on the upper surface of the above-mentioned flat plate (11), and the moving rails (20) serve to guide the moving plate (30) to move along the length direction.

[0096] Additionally, a plurality of support legs (12) may be provided at the bottom of the base module (10) to stably support the device on the floor surface. The support legs (12) are formed to be coupled to the lower frame of the base module to support the entire load of the device and serve to prevent the device from shaking or tilting depending on the working environment.

[0098] Preferably, a height-adjustable leveling foot may be provided at the bottom of the support leg (12), and thus the device may be configured to be leveled according to the condition of the floor surface. However, this structure is merely an example and is not limited thereto.

[0100] The base module (10) configured in this manner serves to provide a support base that allows the moving rail (20) and the moving plate (30) to operate stably while ensuring the structural rigidity of the entire device.

[0102] Meanwhile, the base module (10) may be provided with a position fixing structure for selectively fixing the position of the moving plate (30).

[0104] Specifically, on the upper surface of the base module (10), a plurality of position fixing blocks (13) may be installed at mutual intervals along the longitudinal direction of the movable rails (20), positioned in the space between the pair of movable rails (20). The position fixing blocks (13) may be fixedly installed on a flat plate (11) provided on the upper surface of the base module (10), and may be joined by bolt fastening, welding, or various other fixing methods.

[0105] A pin insertion hole (131) may be formed in the position fixing block (13) so that a position fixing pin (33) provided on the moving plate (30) can be inserted. The pin insertion hole (131) may be formed in a shape that penetrates the position fixing block (13) so that the position fixing pin (33) can be smoothly inserted and removed, and may be formed as a circular hole or a polygonal hole as needed.

[0107] In addition, the pin insertion hole (131) may be formed to have a diameter or shape corresponding to the position fixing pin (33) so as to stably fix the position of the moving plate (30), and the inner surface of the ball may be finished to facilitate repeated insertion and removal.

[0108] With this structure, the moving plate (30) can be configured to be fixed in position when the operator moves the moving plate (30) along the moving rail (20) to a desired position and then inserts the position fixing pin (33) into the pin insertion hole (131) of the corresponding position fixing block (13).

[0109] Accordingly, the position of the moving plate (30) can be set quickly and accurately, and the same work position can be repeatedly reproduced, so there is an effect of improving the precision and repeatability of the pressure position during PU foam attachment work.

[0110] In addition, since the above-mentioned position fixing blocks (13) are arranged in multiple numbers along the length direction of the moving rail (20), there is an advantage in that the position of the moving plate (30) can be selectively set at various positions depending on the size of the object or the position where the PU foam is attached.

[0112] The above moving plate (30) is configured to adjust the position of the link plate (40) and the pressing module (50) while moving along a pair of moving rails (20) installed on the base module (10), and performs the role of setting the pressure position according to the size of the object or the PU foam attachment position.

[0114] The above moving plate (30) may be formed in a plate-shaped structure overall, and a support structure for supporting the link plate (40) may be formed on the upper surface, and a moving structure for moving along the moving rail (20) may be provided on the lower surface.

[0116] Specifically, a pair of supporting supports (31) spaced apart from each other may be provided on the upper surface of the moving plate (30). The supporting supports (31) may be formed in the shape of a bracket or a block protruding in a vertical direction to stably support the rotating plate (44) or link structure of the link plate (40), and may have a coupling hole or an axial coupling part formed for coupling with the link plate (40).

[0117] The above pair of supporting supports (31) can be positioned at mutually spaced positions to stably support the load generated when the link plate (40) performs a rotational movement, and additional reinforcing ribs or reinforcing plates may be formed as needed.

[0119] Additionally, a plurality of moving blocks (32) may be installed on the lower surface of the moving plate (30) so as to be able to move along the pair of moving rails (20). The moving blocks (32) may be configured to be coupled with the moving rails (20) to slide along the length direction of the rails, and may be formed, for example, in the form of linear guide blocks, roller blocks, or sliding pads.

[0120] The above moving blocks (32) may be arranged in multiple numbers to ensure stable movement of the moving plate (30), and preferably at least two may be arranged to correspond to each of the moving rails (20) to prevent shaking or tilting that may occur during the movement of the moving plate (30).

[0121] Meanwhile, the moving plate (30) may be provided with a position fixing pin (33) for selectively fixing the position of the moving plate (30) in correspondence with a position fixing block (13) installed on the base module (10).

[0122] The above position fixing pin (33) may be formed as a pair and may be configured to be installed on the lower or side of the moving plate (30) and selectively inserted into the pin insertion hole (131) of the position fixing block (13) formed in the base module (10).

[0123] Accordingly, when a worker moves the moving plate (30) to a desired position along the moving rail (20) and then inserts the position fixing pin (33) into the pin insertion hole (131) of the corresponding position fixing block (13), the position of the moving plate (30) can be stably fixed.

[0124] With this structure, the moving plate (30) can move smoothly along the moving rail (20) and be quickly fixed at the required position, and can be configured to easily adjust the pressure position according to the shape of the object or the location where the PU foam is attached.

[0125] Accordingly, the moving plate (30) according to the present invention has the effect of improving the precision of the PU foam attachment position and ensuring the repeatability of the operation by allowing the position of the pressing module (50) to be precisely adjusted and stably maintained during the PU foam attachment operation.

[0126] In addition, since the position of the moving plate (30) can be set at various locations, it can flexibly respond to objects of different shapes, thereby improving responsiveness to changes in product shape.

[0128] The link plate (40) is rotatably installed on the moving plate (30) and is configured to transmit a driving force from the pressure providing means (60) to the pressing module (50) to press the surface of an object, and is configured to form a link structure for performing a pressing operation of the pressing module (50).

[0130] Specifically, the link plate (40) may be configured to include a pair of links (41) positioned at mutually spaced positions, a plurality of connecting bars (42) connecting the pair of links (41), a connecting plate (43) connecting the links (41) and the pressing module (50), and a rotating plate (44) rotatably connected to the moving plate (30).

[0132] First, the above pair of links (41) may be formed as plate-shaped structures arranged parallel to each other at a certain distance, and may be formed so that the pressure providing means (60) is connected to one side in the longitudinal direction and the pressing module (50) is connected to the other side.

[0133] The pressure providing means (60) may be composed of a cylinder, an electric actuator, or other linear driving device, and may be connected to one side of the link (41) in a pin coupling or shaft coupling manner to induce rotational movement of the link plate (40).

[0134] In addition, the plurality of connecting bars (42) are configured to connect the pair of links (41) to secure the structural rigidity of the entire link plate (40), and a plurality of them may be installed at a certain position between the links (41).

[0135] The above connecting bar (42) can be formed to prevent twisting or deformation of the link structure while maintaining the spacing between the pair of links (41), and can be joined by bolt fastening, pin joining, or welding, etc.

[0136] In addition, the link plate (40) may be provided with a coupling plate (43) for coupling the pressing module (50).

[0137] The above coupling plate (43) may be installed to be connected to the other end of the pair of links (41) and may be configured to be connected to the pressing plate (51) or other coupling part of the pressing module (50) so that the rotational movement of the link plate (40) is transmitted to the pressing module (50).

[0139] Meanwhile, the link plate (40) may be provided with a rotating plate (44) to be rotatably coupled with the moving plate (30).

[0140] The above-mentioned rotating plate (44) is installed in one side area of ​​the above-mentioned pair of links (41) and can be connected via a rotation axis (441) at a position corresponding to the supporting support (31) of the above-mentioned moving plate (30).

[0141] That is, the rotating plate (44) can be combined with a rotational support structure formed on the moving plate (30) so that the entire link plate (40) can rotate up and down around the rotation axis (441).

[0143] When the pressure providing means (60) is driven by such a structure, the driving force transmitted to one side of the link (41) is converted into rotational movement of the link plate (40), and accordingly, the link plate (40) rotates in the up and down direction around the rotation axis (441).

[0144] Then, the pressing module (50) coupled to the other side of the link plate (40) moves together and comes into contact with the surface of the object, and through the pressing module (50), pressure is transmitted to the surface of the object to act to tightly fix the PU foam.

[0145] With such a link structure, the driving force transmitted from the pressure providing means (60) can be stably transmitted to the pressing module (50), and structural deformation that may occur during the pressurization operation can be minimized.

[0146] Accordingly, the link plate (40) according to the present invention has the effect of enabling the pressing operation of the pressing module (50) to be performed stably, thereby allowing the PU foam to be fixed in close contact with the surface of the object with uniform pressure.

[0147] In addition, structural rigidity can be secured through a structure consisting of a pair of links (41) and multiple connecting bars (42), so a stable operating state can be maintained even during repetitive pressure operations, and the durability of the device can be improved.

[0149] The above-mentioned pressing module (50) is coupled to one side of the link plate (40) and is configured to transmit a pressing force to the surface of an object by driving the pressure providing means (60), thereby causing the PU foam to be fixed in close contact with the surface of the object.

[0151] Specifically, the pressing module (50) may be configured to include a pressing plate (51) formed in the shape of a plate having a predetermined area, a plurality of pressing means (52) installed on the pressing plate (51) and in contact with the fixed position of an object, and a plurality of installation holes (53) in which the pressing means (52) are installed.

[0153] First, the above-mentioned pressing plate (51) may be formed in a plate-shaped structure overall and may be configured to be combined with the connecting plate (43) of the link plate (40) to move together with the rotational movement of the link plate (40) and to perform a pressing operation toward the surface of the object.

[0154] The above pressing plate (51) may be formed from a metal plate or a high-strength structural material and may be formed to have sufficient rigidity to stably transmit the load generated during the pressing operation.

[0155] Additionally, a plurality of installation holes (53) may be formed in the pressing plate (51) corresponding to the shape of the object and the attachment location of the PU foam. The installation holes (53) are formed so that the pressing means (52) can be inserted or coupled, and a plurality of them may be arranged at regular intervals on the pressing plate (51).

[0156] The above pressing means (52) is configured to transmit a pressing force by directly contacting the surface of an object, and may include a pressing rod (521) formed in the shape of a rod extended in the longitudinal direction and a pressing block (523) formed in the shape of a block having a predetermined area.

[0157] The above-mentioned pressing rod (521) can be inserted into and coupled to the installation hole (53) of the above-mentioned pressing plate (51), and can be configured to protrude downward and transmit pressure while in contact with the surface of the object.

[0158] Additionally, a cushioning part (522) may be provided at the end of the above-mentioned pressing rod (521) to prevent surface damage to the object. The cushioning part (522) may be formed of rubber, urethane, or other elastic material and may be configured to mitigate the impact generated during the pressing operation and prevent damage to the surface of the object.

[0159] Meanwhile, the above-mentioned pressing block (523) may be formed in the shape of a block having a predetermined area and configured to transmit pressure while making surface contact with the surface of the object. The above-mentioned pressing block (523) may be formed as a separate structure from the above-mentioned pressing rod (521) and may be directly coupled to the installation hole (53) of the pressing plate (51) or installed through a separate coupling structure.

[0160] That is, the pressing means (52) may be configured to selectively use a rod-shaped pressing rod (521) or a block-shaped pressing block (523) depending on the shape of the object and the pressing method.

[0161] In addition, among the above installation holes (53), the installation hole (53) in which the pressing rod (521) is installed may be formed in the shape of an elongated hole extended in the longitudinal direction so that the position of the pressing rod (521) can be adjusted.

[0162] The above-mentioned elongated mounting hole (53) can be formed to allow the position to be moved within a certain range while the pressing rod (521) is inserted, and thereby the pressing position of the pressing rod (521) can be adjusted to match the shape of the object or the attachment position of the PU foam.

[0163] With this structure, the operator can set a pressure position corresponding to the shape of the object by changing the installation position of the pressing rod (521) or the pressing block (523) or by finely adjusting the position of the pressing rod (521) along the elongated hole.

[0164] Accordingly, the pressing module (50) according to the present invention can precisely adjust the pressure position to match the surface shape of the object and the PU foam attachment position, so the PU foam can be attached in close contact at an accurate position and has the effect of improving the precision of the PU foam attachment position.

[0165] In addition, since uniform pressure can be transmitted to the surface of the object through multiple pressing means (52), the adhesive state of the PU foam can be stably maintained, thereby improving adhesive quality and reducing the defect rate.

[0166] In addition, since the structure allows for the selective use of the pressing rod (521) and the pressing block (523) and the position adjustment structure in the shape of an elongated hole, it can flexibly respond to objects of various shapes, thereby improving responsiveness to changes in product shape and improving work efficiency.

[0167] In addition, since the operator can set the pressurization position with simple position adjustments, variations due to operator skill level can be reduced, and the efficiency of repetitive tasks can be improved, thereby increasing productivity and reducing labor costs.

[0169] The pressure providing means (60) is configured to provide a driving force to rotate the link plate (40) in the up and down direction, thereby transmitting a pressure force to the surface of the object through the pressing module (50).

[0171] Specifically, the pressure providing means (60) may be configured to include a driving unit driven by an applied power source or control signal, and a power transmission unit for transmitting the driving force generated by the driving unit to the link plate (40).

[0172] The above-mentioned drive unit may be composed of various types of drive devices that generate linear or rotational motion, such as pneumatic cylinders, hydraulic cylinders, electric actuators, servo motor-driven linear actuators, or electric cylinders. Such a drive unit is driven by an external power source or a control signal and may be configured to move to a constant stroke or position under the control of a control device.

[0173] One side of the drive unit may be fixedly installed on the base module (10) or the moving plate (30), and the other side may be connected to the link (41) of the link plate (40) to transmit driving force. At this time, the connection between the drive unit and the link plate (40) may be made by a pin connection, a hinge connection, or a rotational axis connection.

[0175] When the pressure providing means (60) is driven by such a structure, the rod of the driving unit moves forward or backward, and during this process, one side of the link plate (40) is pushed or pulled, causing the link plate (40) to rotate in the up and down direction around the rotation axis formed on the moving plate (30).

[0176] Then, the pressing module (50) coupled to the other side of the link plate (40) moves together and descends toward the surface of the object, and accordingly, the pressing means (52) comes into contact with the surface of the object and transmits a pressing force. By the pressing force transmitted in this way, the PU foam acts to adhere and fix to the surface of the object.

[0178] In addition, the pressure providing means (60) may be operated in conjunction with a control device and may be configured to control the start and end times of the pressurization operation or to set the pressurization time. A pressure regulating device or a position control device may be applied together to adjust the pressurization force as needed.

[0180] Since a stable pressure can be transmitted to the pressing module (50) by such a pressure providing means (60), the PU foam can be attached to the surface of the object with uniform pressure and can be configured to maintain a constant pressure condition during the operation process.

[0182] Accordingly, the pressure providing means (60) according to the present invention enables the pressing operation of the pressing module (50) to be performed stably, and by ensuring that the PU foam adheres uniformly to the surface of the object, it has the effect of improving adhesive quality and reducing the occurrence of product defects.

[0183] In addition, since the structure is automatically driven by power or control signals, it can replace manual pressurization by the operator, thereby reducing variations due to operator skill level and improving work efficiency, which has the effect of enhancing productivity.

[0184] In addition, since the pressurization operation can be performed repeatedly and stably, PU foam attachment work of the same quality can be continuously carried out, which has the effect of improving product quality stability.

[0186] As described above, the present invention has been explained by specific details such as specific components, limited embodiments, and drawings; however, this is provided merely to aid in a more comprehensive understanding of the invention, and the invention is not limited to the above embodiments. A person skilled in the art can make various modifications and variations from this description.

[0188] Accordingly, the scope of the present invention should not be limited to the described embodiments, and all things equivalent to or having equivalent variations to the claims set forth below, as well as the claims set forth below, shall be considered to fall within the scope of the concept of the present invention. Explanation of the symbols

[0190] 1 : Pressing device for attaching PU foam 10: Base Module 11: Flat plate 12: Support leg 13: Position fixing block 131 : Pin insertion hole 20: Moving rail 30 : Moving Plate 31 : Support 32 : Movable block 33: Position fixing pin 40 : Link Plate 41 : Link 42 : Connection bar 43 : Connecting plate 44 : Turntable 441 : Rotation axis 50 : Press module 51 : Pressing plate 52 : Pressing means 53 : Installer 521 : Push rod 522 : Cushioning part 523 : Press block 60: Pressure supply means

Claims

Claim 1 A PU foam attachment pressing device for press-fixing an object to attach PU foam to the surface of the object, comprising: a base module (10) formed to have a predetermined height and length; a pair of movable rails (20) installed along a horizontal direction in a spaced-apart manner on the upper surface of the base module (10); a moving plate (30) installed to be movable in the longitudinal direction along the pair of movable rails (20); a link plate (40) rotatably installed on the moving plate (30); and a pressing module (50) coupled to one side of the link plate (40) and transmitting a fixing pressure while in contact with the surface of the object. A press device for attaching PU foam, comprising: a pressure providing means (60) that is driven by an applied power or control signal to rotate the link plate (40) in an up-and-down direction and provide a pressurizing force to an object through the press module (50); wherein, as the link plate (40) rotates according to the driving of the pressure providing means (60), the press module (50) presses the surface of the object to securely fix the PU foam. Claim 2 A PU foam attachment pressing device according to claim 1, wherein the pressing module (50) comprises a pressing plate (51) formed in the shape of a plate having a predetermined area, a plurality of pressing means (52) installed on the pressing plate (51) and in contact with the fixed position of an object, and a plurality of installation holes (53) in which the pressing means (52) are installed. Claim 3 A pressing device for attaching PU foam according to claim 2, wherein the pressing means (52) comprises a pressing rod (521) formed in the shape of a rod extended in the longitudinal direction and a pressing block (523) formed in the shape of a block having a predetermined area, and wherein a cushioning part (522) is provided at the end of the pressing rod (521) to prevent surface damage to an object. Claim 4 A PU foam attachment pressing device according to claim 3, wherein the installation hole (53) in which the pressing rod (521) is installed is formed in the shape of an elongated hole extended in the longitudinal direction so as to allow for position adjustment of the pressing rod (521). Claim 5 A PU foam attachment pressing device according to claim 1, wherein the link plate (40) comprises: a pair of links (41) arranged at mutually spaced positions, wherein the pressure providing means is coupled to one side in the longitudinal direction and the pressing module is coupled to the other side; a plurality of connecting bars (42) that connect the pair of links (41) to provide structural rigidity; a connecting plate (43) that combines the links and the pressing module; and a rotating plate (44) that connects the pair of links and the moving plate and is rotatably coupled to the moving plate through a rotation axis. Claim 6 A PU foam attachment pressing device according to claim 1, wherein the base module (10) is provided with a plurality of position fixing blocks (13) that are spaced apart from each other along the length direction of the movable rails and disposed in the space between the pair of movable rails (20), and the moving plate (30) is provided with a pair of position fixing pins (33) that are selectively inserted into and removed from the position fixing blocks, thereby enabling position adjustment and fixing of the moving plate (30). Claim 7 A PU foam attachment pressing device according to claim 1, wherein the moving plate (30) comprises a pair of supporting supports (31) spaced apart from each other on the upper surface to support the link plate, and a plurality of moving blocks (32) spaced apart on the lower surface to move along the pair of moving rails.

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