KR200396638Y1 - Variable Inner faces support apparatus - Google Patents

Abstract

The present invention relates to a variable inner support device capable of supporting urethane foaming operations of products such as two kinds of Kimchi refrigerators with one device. The variable inner support device according to the present invention is provided with a rectangular base, a side support unit including four support plates installed on an upper side of the base and linearly moving in a vertical direction with respect to each side of the base, and on an upper side of the side support unit. A lifting plate installed so as to move in a straight line, four auxiliary supporting plates linearly moving on four sides of the lifting plate in parallel with the support plate, and provided to be in close contact with the sides of the lifting plate by a plurality of elastic members, and side supporting on the lower side of the lifting plate A variable drive source is installed inside the unit, and the lifting plate is selectively raised or lowered by the variable drive source, the variable operation means for moving the four auxiliary support plate to the side of the corresponding base when the lifting plate is raised.

Description

Variable inner support device

The present invention relates to an inner surface support device that can support the inner surface of a rectangular hollow cylinder, such as kimchi refrigerator, and more particularly to a variable inner support device that can support the inner surface of two types of kimchi refrigerator. .

In general, devices that require insulation such as kimchi refrigerators are made of a case, and filled with urethane foam liquid (polyol + isocyanate hardener + catalyst) inside the case and filled to obtain a heat insulation effect. .

By the way, when the urethane foam liquid is injected into the case of the Kimchi refrigerator, there is a fear that the case is deformed because a constant foaming pressure is applied. In order to prevent this, the inner and outer surfaces of the case are supported by a support device, and then urethane foam is injected.

An example of an inner surface support device for supporting the inner surface of the kimchi refrigerator case is shown in FIG.

Referring to FIG. 1, the inner support device 1 includes a base 2, a top plate 3, four support plates 4, a plurality of linear moving members 5, a lifting member 7, and a driving cylinder 9. ).

The base 2 is formed of a rectangular plate corresponding to the size of the kimchi refrigerator case 10 to be urethane foaming.

The upper plate 3 is installed in parallel with the base 2 by four support walls 11 installed in a rectangular shape corresponding to four sides of the base 2 on the upper surface of the base 2, and the kimchi refrigerator case 10. ) Underside.

Four support plates 4 are provided so as to correspond to the four surfaces of the base 2 between the base 2 and the upper plate 3 to the outside of the support wall 11. The four support plates 4 are respectively moved horizontally with respect to the upper surface of the base 2 by the linear moving member 5.

The plurality of linear moving members 5 move the four support plates 4 in parallel with the base 2, and are provided on the four support walls 11, respectively. The linear moving member 5 for guiding the linear movement of one support wall 11 is composed of four ball bushes 5b and guide shafts 5a. At this time, the ball bush 5b is installed on the support wall 11, and the guide shaft 5a is inserted into the ball bush 5b to make linear movement. One end of the guide shaft 5a is fixed to the inner surface of the support plate 4, and the other end is provided with a roller cam 6.

The elevating member 7 is installed inside the four support walls 11, and is installed to ascend and descend relative to the base 2 by the driving cylinder 9. The lifting member 7 is formed with a guide groove 8 corresponding to the roller cam 6 provided at the other end of the guide shaft 5a, and the roller cam 6 is inserted into the guide groove 8. The shape of the guide groove 8 is formed into an inclined groove, when the lifting member 7 is raised, the roller cam 6 moves to the inside of the support wall 11, and when the lifting member 7 is lowered, the roller cam is lowered. 6 is formed to move toward the support wall 11. 1 is a state in which the elevating member 7 is lowered.

Therefore, when the rod 9a of the drive cylinder 9 expands and contracts and the lifting member 7 descends, the roller cam 6 moves toward the support wall 11. When the roller cam 6 moves toward the support wall 11, the guide shaft 5a also moves outward of the support wall 11, so that the gap between the support plate 4 and the support wall 11 is widened. At this time, since the outer side of the support plate 4 is made to coincide with the inner surface of the kimchi refrigerator case 10, the pressure applied to the kimchi refrigerator case 10 in the direction of the arrow in FIG. 1 during urethane foaming. I can support it.

After the urethane foaming is completed, when the kimchi refrigerator case 10 is removed, the driving cylinder 9 is operated to extend the rod 9a. Then, the elevating member 7 is raised to move the roller cam 6 to the inside of the support wall 11 by the guide groove 8. When the roller cam 6 moves inside the support wall 11, the guide shaft 5a moves inside the support wall 11. Therefore, the support plate 4 also moves toward the support wall 11, so that the gap between the support plate 4 and the support wall 11 is narrowed. Then, a space is formed between the support plate 4 and the inner surface of the kimchi refrigerator case 10 so that the kimchi refrigerator case 10 of which urethane foaming is completed can be easily taken out, and the new kimchi refrigerator case 10 has an internal support device (1). Can be installed on

However, the conventional internal support device 1 as described above can be used only for one type of Kimchi refrigerator case having a specific capacity, that is, when the foaming operation is performed on a Kimchi refrigerator case of a different type of internal capacity. Therefore, when the foaming work of the Kimchi refrigerator case of other models, the operator must replace the internal support device. However, the work of replacing the inner support device is difficult to replace due to the narrow space, it takes a lot of time for the replacement work is poor workability. Therefore, there is a problem that the productivity of the kimchi refrigerator falls when changing the model of the kimchi refrigerator case.

In addition, replacing the inner support device according to the model change of the kimchi refrigerator has a problem that there is a high risk of safety accidents due to the difficult replacement work.

The present invention has been made in view of the above problems, and provides a variable inner support device capable of supporting the inner surfaces of two kinds of products having different capacities.

An object of the present invention as described above, the rectangular base; A side support unit installed on an upper side of the base, the side support unit including four support plates moving linearly in a vertical direction with respect to each side of the base; A lifting plate installed on the upper side of the side support unit to move up and down linearly; Four auxiliary support plates which are linearly moved in parallel with the support plate on four side surfaces of the elevating plate, and installed to be in close contact with the side surfaces of the elevating plate by a plurality of elastic members; A variable drive source installed inside the side support unit below the lifting plate; And variable operating means for selectively raising or lowering the elevating plate by the variable driving source, and moving the four auxiliary supporting plates toward each side of the base when the elevating plate is raised. By providing.

Here, the variable operation means includes a variable movable plate fixed to the rod of the variable drive source; and four variable link members; wherein the variable link member is hinged to one end of the variable movable plate, and the other end is A push link for pushing the auxiliary support plate; One end is hinged to the lower surface of the lifting plate, the other end is an upper link hinged to the other end of the push link; And one end is hinged to the upper plate of the side support unit, the other end is a lower link that is hinged coaxially with the other end of the upper link; Includes, when the variable movable plate is raised, the push link with respect to the base upper surface The auxiliary supporting plate is pushed outward in a horizontal direction, and the upper link and the lower link are vertical to the push link to raise the lifting plate.

In addition, the side support unit, the top of the rectangular fixed to the upper surface of the base by a plurality of fixing brackets; First, second, third, and fourth support plates disposed vertically with respect to the upper surface of the base between the base and the upper plate, and installed to linearly move with respect to each side of the base; A movable member installed inside the first, second, third, and fourth support plates, the movable member being configured to move up and down between the base and the top plate; First, second, third, and fourth link members connecting the movable member and inner surfaces of the first, second, third, and fourth support plates, respectively; And a driving source installed at the base and configured to raise and lower the moving member. When the moving member is moved by the driving source, the first, second, third, and fourth link members are provided. And second, third, and fourth support plates are linearly moved on the upper surface of the base, respectively.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of a variable inner surface support apparatus according to the present invention. Hereinafter, the product that the link type inner support device according to the present invention supports the urethane foaming operation will be described for the kimchi refrigerator. In addition, in the following description and drawings, the hinge connection to the hinge coupling are coupled by a hinge hole formed in the hinge shaft or the hinge pin and two mutually rotating members, and thus a detailed description and illustration thereof are omitted.

2 to 5, the variable inner supporter 100 according to the present invention includes a base 30, an upper support unit 110, and a side support unit 20.

The base 30 is formed into a rectangular plate shape and has a size corresponding to the size of the kimchi refrigerator case 10 to be urethane foamed.

The upper support unit 110 includes a lift plate 120, four auxiliary support plates 131, 132, 133, and 134, a variable drive source 150, and a variable operation means 130.

The elevating plate 120 is installed on the upper side of the side support unit 20 and linearly moves up and down with respect to the side support unit 20. The lifting plate 120 is molded into a rectangular shape corresponding to the bottom surface of the kimchi refrigerator case 10 so as to support the inner bottom surface of the kimchi refrigerator case 10 during urethane foaming. Accordingly, when the lifting plate 120 is raised and lowered, the kimchi refrigerator cases 10 and 10 'of different models are supported. The elevating plate 120 is composed of an elevating plate 122 in contact with the inner bottom surface of the kimchi refrigerator case 10 and an elevating plate frame 121 for supporting the elevating plate 122. The elevating plate frame 121 has a rectangular pipe shape with an upper end blocked, and four auxiliary supporting plates 141, 142, 143, and 144 are installed on four sides of the elevating plate frame 121 so as to move linearly.

The four auxiliary support plates 141, 142, 143, 144, that is, the first, second, third, and fourth auxiliary support plates corresponding to the four support plates 41, 42, 43, and 44 of the side support unit 20, respectively, have a lifting plate frame ( The four side surfaces 121a, 121b, 121c, and 121d of 121 are installed to move in a straight line in parallel with the corresponding support plates 41, 42, 43, 44 of the side support unit 20. Each of the auxiliary supporting plates 141, 142, 143, and 144 has two auxiliary guide shafts 123 installed on the inner surfaces of the auxiliary supporting plates 141, 142, 143, and 144 and four side surfaces 121a, 121b, 121c and 121d of the elevating plate frame 121. The secondary bushes 124 are moved linearly so as to correspond to each other. At this time, the compression coil spring 125 is interposed between the auxiliary bushings 124 at one end of the two auxiliary guide shafts 123. A spring cap 126 is fixed to one end of the auxiliary guide shaft 123 so that the compression coil spring 125 does not fall out. Accordingly, each of the auxiliary supporting plates 141, 142, 143, and 144 is maintained in close contact with the four side surfaces 121a, 121b, 121c, and 121d of the elevating plate frame 121 by the compression coil spring 125. In addition, a push plate 127 is provided between the two auxiliary guide shafts 123 on the inner surface of each of the auxiliary supporting plates 141, 142, 143, and 144, and the four side surfaces 121a, 121b, 121c, and 121d of the elevating plate frame 121. The push hole 128 corresponding to the push plate 127 is formed. At this time, when the push plate 127 inserted into the push hole 128 is pushed by the tip 131a of the push link 131 which will be described later, the auxiliary supporting plates 141, 142, 143 and 144 are pushed outward. When the auxiliary supporting plates 141, 142, 143 and 144 move outward, the compression coil spring 125 interposed on the auxiliary guide shaft 123 is compressed to form the four sides 121a, 121b and 121c of the auxiliary supporting plates 141, 142, 143 and 144 and the elevating plate frame 121. The gap between and 121d is widened. Here, when the auxiliary support plates 141, 142, 143 and 144 are contracted, that is, when the auxiliary support plates 141, 142, 143 and 144 are in close contact with each side 121a, 121b, 121c and 121d of the elevating plate frame 121, the auxiliary supporting plates 141, 142, 143 and 144 are smaller than the four sides of the elevating plate 122. It does not protrude outward. In addition, when the auxiliary supporting plates 141, 142, 143 and 144 protrude by the push plate 127, the four supporting plates 41 and 42 protruding from the side support units 20 which will be described later will correspond to the outer surfaces of the auxiliary supporting plates 141, 142, 143 and 144. And 43, 44 on the same plane as the outer surface.

The variable drive source 150 is installed inside the side support unit 20 at the lower side of the elevating plate 120. At this time, the variable drive source 150 is installed on the fixed plate 155 fixed by the plurality of support brackets 156 at the center of the lower surface of the upper plate 21 of the side support unit 20. At this time, a through hole is formed in the central portion of the upper plate 21 to form a moving passage of the variable movable plate 152, and the plurality of support brackets 156 are installed around the through hole. In addition, the variable drive source 150 preferably uses a pneumatic cylinder.

The variable operation means 130 selectively raises or lowers the elevating plate 120 by the variable driving source 150, and when the elevating plate 120 rises, four auxiliary supporting plates 141, 142, 143, and 144 correspond to the base 30. To move toward the sides 31, 32, 33, and 34. The variable operation means 130 includes four variable link members 130a, 130b, 130c, 130d corresponding to the four side surfaces 121a, 121b, 121c, 121d of the variable movable plate 152 and the elevating plate frame 121, That is, it is composed of first, second, third, and fourth variable link members.

The variable moving plate 152 is fixed to the rod 151 of the variable drive source 150, and moves up and down as the rod 151 of the variable drive source 150 rises / falls. At this time, the variable moving plate 152 is preferably guided by the two lifting guide shaft 153 and the lifting bush 154.

The first, second, third, and fourth variable link members 130a, 130b, 130c, and 130d each include a push link 131, an upper link 132, and a lower link 133.

The push link 131 is formed to push the push plate 127 when the variable moving plate 152 is raised. One end of the push link 131 is hinged to the upper surface of the variable movable plate 152, the other end 131a is formed to push the push plate 127 of each auxiliary support plate (141, 142, 143, 144).

One end of the upper link 132 is hinged to the lower surface of the elevating plate 120, that is, the lower surface of the elevating plate frame 121, and the other end of the upper link 132 is hinged to the other end of the push link 131. do.

The lower link 133 is hinged to the upper surface of the upper plate 21 of the side support unit 20, and the other end of the lower link 133 together with the other end of the upper link 132, the other end of the push link 131. Hinged on the coaxial to.

At this time, the relationship between the push link 131, the upper link 132, the lower link 133 is determined as follows. The push link 131 is horizontal with respect to the top surface of the upper plate 21 when the variable movable plate 152 is raised, and the other end 131a of the push link 131 is the push plate 127 of the auxiliary support plates 141, 142, 143, and 144. Is pushed outward of the elevating plate frame side surfaces 121a, 121b, 121c, and 121d so that the outer surfaces of the auxiliary supporting plates 141, 142, 143 and 144 are coplanar with the outer surfaces of the supporting plates 41, 42, 43 and 44. In addition, the upper link 132 and the lower link 133 is in a state perpendicular to the push link 131 when the push link 131 is in a horizontal position, it is determined to raise the elevating plate 120. At this time, the lifting height of the elevating plate 120 is determined so that when the elevating plate 120 rises, the elevating top plate 122 can support the inner bottom surface of the Kimchi refrigerator case 10 having a large capacity.

The side support unit 20 includes an upper plate 21, first to fourth support plates 41, 42, 43, and 44, a movable member 50, and first to fourth link members 61, 62, 63, and 64. , And a drive source 70.

The upper plate 21 is fixed to the variable drive source 150, a predetermined distance spaced from the upper surface of the base 30 by a plurality of fixing brackets (23). At this time, it is preferable to use four fixing brackets 23 so as to support four corners of the upper plate 21. In addition, the upper plate 21 is molded to a size that does not protrude outward of the four sides of the elevating plate 120. In the center of the upper plate 21 is formed a through hole through which the variable moving plate 152 is raised / falled. A fixing plate 155 on which the variable drive source 150 is installed is fixed to the lower surface of the upper plate 21 by four support brackets 156.

Four support plates, that is, the first, second, third and fourth support plates 41, 42, 43 and 44, are installed perpendicularly to the upper surface of the base 30 between the base 30 and the upper plate 21. It is installed so as to move in a straight line perpendicular to each side of the corresponding base quadrangle (31, 32, 33, 34). At this time, it is preferable to install a movement guide member 45 for guiding linear movement of the support plates 41, 42, 43, 44 between the lower ends of the support plates 41, 42, 43, 44 and the upper surface of the base 30. Do. As the movement guide member 45, any one can be used as long as it can guide a linear motion such as a guide groove and a rail system or an LM guide. When using the guide groove and the rail method, the rail is installed on the upper surface of the base 30 in the moving direction of the support plates 41, 42, 43, 44, and the rail is mounted on the lower end of the support plates 41, 42, 43, 44. A corresponding groove is formed to guide the linear movement of the support plates 41, 42, 43, 44. In addition, the support plates 41, 42, 43, 44 are formed in a rectangular shape corresponding to the inner surface of the kimchi refrigerator case 10. The support plates 41, 42, 43, 44 are preferably doubled between the outer layers 41a, 42a, 43a, 44a and the inner layers 41b, 42b, 43b, 44b. The outer layers 41a, 42a, 43a, 44a of the support plate are made of a material which can support the inner surface of the Kimchi refrigerator case 10 without damaging the inner surface, and the inner layers 41b, 42b, 43b, 44b of the support plate have a foaming pressure. It is preferable to form a rigid body such as iron so that it can be supported.

The moving member 50 is installed inside the first, second, third, and fourth support plates 41, 42, 43, and 44, and is installed to move up and down between the base 30 and the top plate 21. do. The moving member 50 may be formed in various shapes, but in the present embodiment, the upper movable plate 52 and the upper movable plate 52 spaced upward from the lower movable plate 51 and the lower movable plate 51. And four upper and lower plate fixing shafts 53 for fixing the lower movable plate 51. At this time, the lower movable plate 51 is connected to the drive source 70. In addition, it is preferable to guide the moving member 50 to the linear moving member 80 so that the moving member 50 can smoothly move up and down. The linear moving member 80 may be used as long as it can guide linear movement such as LM guide, ball bush and guide shaft, but in the present embodiment, the ball bush 81 and guide The shaft 82 was used. 2 and 3, the ball bushes 81 are fixed to the upper movable plate 52 and the lower movable plate 51, and the guide shaft 82 is attached to the upper and lower movable plates 52 and 51, respectively. It is inserted into the installed ball bush 81. The upper end of the guide shaft 82 is fixed to the upper plate 21, the lower end is fixed to the base 30 is installed perpendicular to the upper surface of the base 30. Therefore, the movable member 50 smoothly moves up and down by the ball bush 81 and the guide shaft 82.

The four link members 61, 62, 63, and 64, that is, the first, second, third, and fourth link members, have the movable member 50 and the first, second, third, and fourth support plates 41, Connect the inner surfaces of 42, 43 and 44, respectively. That is, one end of each link member (61, 62, 63, 64) is hinged to the moving member 50, the other end is hinged to the inner surface of each support plate (41, 42, 43, 44). In this case, the first, second, third, and fourth link members 61, 62, 63, and 64 may be formed of an appropriate number of links 65 according to the size of the support plates 41, 42, 43, and 44. In the present embodiment, the first, second, third, and fourth link members 61.62.63.64 each consist of four links 65. That is, the first link member 61 is composed of two links 65 hinged and spaced apart from each other on the upper movable plate 52 and two links 65 spaced apart from each other on the lower movable plate 51. do. One end of each link 65 is hinged to the upper and lower movable plates 52 and 51 by a hinge pin 66, and the other end of each link 65 is supported by a hinge pin 66 to support plate 41. Hinged to the inner surface of the (42, 43, 44). Thus, each link 65 is rotated at an angle about the hinge pin 66 with respect to the upper and lower movable plates 52 and 51 and the respective support plates 41, 42, 43 and 44.

The driving source 70 is installed in the base 30 and raises and lowers the moving member 50. If the driving source 70 is capable of generating power for moving the moving member 50, a motor, a hydraulic cylinder, a pneumatic cylinder, or the like may be used. In this embodiment, a pneumatic cylinder with simple installation and operation was used. 2 and 3, the body of the driving source 70 is fixed to the base 30, and the lower movable plate 51 of the moving member 50 is fixed to the rod 71. Therefore, when the rod 71 of the driving source 71 is extended, the movable member 50 is raised to approach the upper plate 21. When the rod 71 is contracted, the movable member 50 is lowered to the base 30. Close. At this time, when the rod 71 of the driving source 70 is contracted and the movable member 50 descends, each of the first, second, third, and fourth link members 61, 62, 63, and 64 described above. It is desirable for the links 65 to be parallel to the top surface of the base 30. When each of the links 65 is parallel to the upper surface of the base 30, two hinge pins 66 hinged at both ends of each of the links 65 are positioned in a straight line parallel to the direction in which the foaming pressure is applied. Therefore, it is able to withstand the foaming pressure sufficiently.

Although not shown in the figure, the driving source 70 may be fixed to the upper plate 21. In this case, the rod 71 of the drive source 70 is fixed to the upper movable plate 52 of the moving member 50. Therefore, when the rod 71 is extended, the movable member 50 is lowered, and when the rod 71 is contracted, the movable member 50 is raised. Even in this case, when the rod 71 is raised or lowered, the respective links 65 constituting the first, second, third, and fourth link members 61, 62, 63, and 64 are formed on the upper surface of the base 30. It is good to be parallel to.

In addition, when the first, second, third, and fourth link members 61, 62, 63, and 64 are parallel to the base 30, that is, the first, second, third, and fourth link members. When the links 65 constituting the (61, 62, 63, 64) are parallel to the upper surface of the base 30, the movement of the movable member 50 is restricted so that the movable member 50 no longer moves. It is preferable to further install the stopper 85. At this time, if the first, second, third, and fourth link members 61, 62, 63, and 64 are parallel to the base 30 when the movable member 50 is lowered, the movable member 50 Install the stopper 85 to limit the falling distance of the. On the contrary, if the first, second, third, and fourth link members 61, 62, 63, and 84 are parallel to the base 30 when the movable member 50 is raised, the movable member 50 may be Install a stopper 85 for limiting the ascent distance.

Hereinafter, the operation of the variable inner surface support apparatus 100 according to the present invention configured as described above will be described in detail with reference to FIGS. 2 to 8. 6 to 8 illustrate the variable movable plate 152 and the variable link members 130a, 130b, 130c, and 130d to be directly visible for easy description.

First, a case where urethane foaming is performed on a large kimchi refrigerator case 10 will be described.

In this case, the operator operates the drive source 70 and the variable drive source 150 at the same time, thereby making the upper surface support unit 110 and the side support unit 20 all contracted as shown in FIG. 6.

Next, the kimchi refrigerator case 10 is fitted to the upper side of the variable inner surface support device (100). Then, the lifting upper plate 122 and the four support plates 41, 42, 43, 44 of the variable inner surface support device 100 are in a state where the space between the bottom and four sides of the inside of the kimchi refrigerator case 10 is widened.

In this state, the variable drive source 150 and the drive source 70 are operated simultaneously to allow the rod 151 of the variable drive source to expand and ascend, and the rod 71 of the drive source to contract and descend.

When the rod 151 of the variable drive source 150 rises, the variable movable plate 152 connected to the rod 151 also rises. At this time, the variable movement plate 152 is the lifting movement is guided by the lifting guide shaft 153 and the lifting bush 154. When the variable movable plate 152 is raised, the lifting plate 120 is raised by the four variable link members 130a, 130b, 130c, and 130d, and the first, second, third, and fourth auxiliary support plates 141, 142, 143, and 144 are provided. ) Is moved outward and is positioned on the same plane as the first, second, third, and fourth support plates 41, 42, 43, 44 of the side support unit 20, respectively.

In this case, the variable link member (1, 2, 3, 4, and 4) is provided with the variable link member (141, 142, 143, 144) to move the lifting plate 120 and the four auxiliary support plates (141, 142, 143, 144) by the variable link members (130a, 130b, 130c, 130d). 130a) The description is based on one.

When the variable movable plate 152 is raised, the push link 131 hinged to the upper surface of the variable movable plate 152 is in a horizontal state with the upper surface of the upper plate 21, the other end 131a of the push link 131 ) Pushes the corresponding push plate 127. Then, while the compression coil spring 125 interposed in the auxiliary guide shaft 123 guided by the auxiliary bush 124 is compressed, the auxiliary supporting plate 141 moves to the outside of the side surface 121a of the elevating plate frame 121. Thus, the four support plates 41, 42, 43, 44 of the side support unit 20 to be described later is located on the same plane as the corresponding support plate 41. At this time, the upper link 132 and the lower link 133 hinged to the other end of the push link 131 is perpendicular to the push link 131, thereby moving the lifting plate 120 upward. . Then, the elevating top plate 122 of the elevating plate 120 is in contact with the inner bottom surface of the kimchi refrigerator case 10. At this time, since the hinge coupling portion and the push plate 127 of both ends of the push link 131 are in a straight line, the foam pressure acting perpendicularly to the auxiliary support plate 141 may be sufficiently endured.

In addition, when the rod 71 of the drive source 70 descends, the lower movable plate 51 connected to the rod 71 also descends. When the upper and lower movable plates 52 and 51 of the movable member 50 are lowered, the first, second, third and fourth link members hinged to four surfaces of the upper and lower movable plates 52 and 51. (61, 62, 63, 64) is also lowered to be parallel to the upper surface of the base (30). Then, four support plates 41, 42, 43, and 44 connected to the first, second, third, and fourth link members 61, 62, 63, and 64 are moved outward by a predetermined distance (W). And to support the inner surface of the kimchi refrigerator case 10 as shown in FIG. At this time, since the movement of the lower movable plate 51 is prevented by the stopper 85, the first, second, third, and fourth link members 61, 62, 63, and 64 are parallel to the upper surface of the base 30. Will remain in one state.

At this time, one link 65 is applied to the movement of each of the support plates 41, 42, 43, and 44 by the first, second, third, and fourth link members 61, 62, 63, and 64. The description is as follows.

As shown in FIG. 6, the link 65 is inclined in a state in which the support plate 44 is close to the lower movable plate 51. That is, one end of the link 65 hinged to the lower movable plate 51 is positioned above the other end of the link 65 hinged to the inner surface of the support plate 44. When the lower movable plate 51 is lowered by the drive source 70 in this state, one end of the link 65 connected to the lower movable plate 51 is also lowered. When one end of the link 65 connected to the lower movable plate 51 is lowered, the other end of the link 65 is pushed outward of the lower movable plate 51 by the force of the lower end of the link 65. . Accordingly, the support plate 44 hinged to the other end of the link 65 is pushed outward to move toward the corresponding side 34 of the base 30. At this time, since the other links 65 installed between the movable member 50 and the first, second, third, and fourth support plates 41, 42, 43, and 44 also perform the same operation as described above, four support plates are provided. (41, 42, 43, 44) is moved outwards a predetermined distance (W) toward the four sides (31, 32, 33, 34) of the base (30). At this time, the lower ends of the four support plates 41, 42, 43, 44 are guided by the movement guide member 45, respectively, so that the support plates 41, 42, 43, 44 move smoothly outward.

By the above-described action, four support plates 41, 42, 43, 44 of the variable inner support device 20 support the four sides of the inner surface of the kimchi refrigerator case 10, and the elevating plate 120 is the kimchi refrigerator. The bottom surface of the inner surface of the case 10 is supported. In this state, the urethane is foamed to fill the kimchi refrigerator case 10, and maintained for a predetermined time so that the urethane is cured. When the curing of the urethane is completed, the operator operates the variable drive source 150 and the drive source 70 at the same time so that the rod 151 of the variable drive source 150 is stretched and lowered, the rod 71 of the drive source 70 is Elongate to rise.

When the rod 151 of the variable drive source 150 is stretched, the variable moving plate 152 is lowered along the rod 151. Then, one end of the four push links 131 hinged to the upper surface of the variable moving plate 152 is simultaneously lowered, pulling the other end 131a of the four push links 131 toward the variable moving plate 152. do. Then, the upper link 132 and the lower link 133 hinged to the other end of each push link 131 also rotates toward the variable moving plate 152, the lifting plate 120 is lowered. At this time, since each push link 131 pushes the push plates 127 of the four auxiliary support plates 141, 142, 143, and 144 to the variable moving plate 152, the auxiliary support plates 141, 142, 143, and 144 have the restoring force of the compression coil spring 125. It comes in close contact with each side surface 121a, 121b, 121c, 121d of the elevating plate frame 121 by this.

In addition, when the rod 71 of the driving source 70 extends, the lower movable plate 51 and the upper movable plate 52 of the movable member 50 fixed to the rod 71 are raised. When the upper and lower movable plates 52, 51 are raised, the first, second, third, and fourth link members 61, 62, 63 hinged to the four surfaces of the upper and lower movable plates 52, 51, respectively. One end of 64 rises. When one end of the first, second, third, or fourth link members 61, 62, 63, 64 is raised, the first, second, third, and fourth link members 61, 62, 63, 64 are raised. The other end of the to move toward the moving member (50). Then, the first, second, third, and fourth support plates 41, 42, 43, 44 hinged to the other ends of the first, second, third, and fourth link members 61, 62, 63, and 64. ) Is also moved toward the moving member (50).

As such, the elevating plate 120 is lowered, and the first, second, third, and fourth auxiliary support plates 141, 142, 143, and 144, and the first, second, third, and fourth support plates 41, 42, 43, and 44 are When moved inward, the first, second, third and fourth auxiliary support plates 141, 142, 143 and 144, and the first, second, third and fourth support plates 41, 42, 43 and 44 and the Kimchi refrigerator case 10 6 are spaced apart from each other by a predetermined distance (W) as shown in FIG. 6. Therefore, the kimchi refrigerator case 10 can be easily separated from the variable inner surface support device (100).

Subsequently, the new kimchi refrigerator case 10 is inserted into the variable inner support device 100, and the urethane foaming work is performed by supporting the inner surface of the large kimchi refrigerator case 10 with the variable inner support device 100 as described above. Continue.

Next, a case in which the inner surface of the Kimchi refrigerator case 10 'having a small capacity is supported by the variable inner surface support apparatus 100 and urethane foaming is described will be described.

In this case, the rod 151 of the variable drive source 150 is kept in a stretched state so that the lifting plate 120 is not raised, and only the rod 71 of the drive source 70 is lowered, as shown in FIGS. 7 and 8. Four support plates 41, 42, 43, 44 of the side support unit 20 are moved outward. In this case, the action of moving the four support plates 41, 42, 43, 44 of the side support unit 20 by lowering the rod 71 of the driving source 70 is the same as described above, and thus a detailed description thereof will be omitted. . In this state, the worker foams urethane to fill the kimchi refrigerator case 10 ', and maintains it for a predetermined time so that the urethane is cured. When the hardening of the urethane is completed, the operator operates only the driving source 70 so that the rod 71 of the driving source 70 is extended.

When the rod 71 of the drive source 70 is extended, the four support plates 41, 42, 43, 44 of the side support unit 20 are moved inward. At this time, since the rod 71 of the driving source 70 is extended to move the four support plates 41, 42, 43, 44 of the side unit 20 inward, the detailed description thereof will be omitted. When the four support plates 41, 42, 43, 44 of the side support unit 20 move inward, the four side surfaces of the inner surface of the Kimchi refrigerator case 10 'and the support plates 41, 42, 43, 44 are Since the gap is formed, the worker can easily take out the kimchi refrigerator case 10 '.

As another embodiment of the present invention, although not shown, the variable inner surface support device may be configured by combining the above-described upper surface support unit 110 to the conventional inner surface support device 1 as shown in FIG. 1. Since the operation of the variable inner supporter according to another embodiment is the same as the operation of the prior art and the upper support unit 110 described above, a detailed description thereof will be omitted.

In the above, only the case of urethane foaming work in the Kimchi refrigerator case (10.10 ') using the variable inner support device 100 according to the present invention, but the urethane foam with the variable inner support device 100 according to the present invention Naturally, it is not limited to the kimchi refrigerator cases (10, 10 ') that can support the work.

As described above, according to the variable internal support device according to the present invention, one variable internal support device can be used for urethane foaming operations of products such as two kinds of Kimchi refrigerator cases having different capacities. Therefore, it is not necessary to replace the inner support device according to the model change of the product, the working time is shortened, and the productivity of the foaming operation is improved even when changing the model.

In addition, according to the variable internal support device according to the present invention, there is no need to replace the internal support device according to the model change of the product, there is no room for safety accidents caused by the replacement operation.

The present invention is not limited to the above-described specific embodiments, and a simple component that can be carried out by those skilled in the art to which the present invention pertains without departing from the spirit of the present invention described in the claims below. Substitutions, additions, deletions, and alterations fall within the scope of the claims of the present invention.

1 is a front view showing an inner surface supporting apparatus according to the prior art,

2 is a front view of a variable inner support device according to the present invention,

3 is a side view of the variable inner supporter of FIG.

4 is a cross-sectional view taken along line II of FIG. 2;

5 is a cross-sectional view taken along the line II-II of FIG. 2;

6 is a front view showing a state in which the support plate and the lifting plate of the variable inner supporter of Figure 2 contracted,

7 is a side view of the variable inner supporter of FIG. 6;

Figure 8 is a front view showing a state supporting the kimchi refrigerator case of another model by the variable inner support device according to the present invention.

* Description of the symbols for the main parts of the drawings *

10,10 '; Kimchi Refrigerator Case 20; Side support

21; Top 23; fixed bracket

30; Base 31,32,33,34; The edge of the base

41,42,43,44; Support plate 45; Movement guide member

50; Moving member 51; Lower side plate

52; Upper plate 53; Top and bottom fixed shaft

61,62,63,64; Link member 65; link

66; Hinge pins 70; Driving source

71; Drive source rod 80; Linear moving member

100; Variable inner support device 110; Top Support Unit

120; Plate 121; Plate frame

123; Auxiliary guide shaft 127; Push Board

130; Variable operating means 130a, 130b, 130c, 130d; Variable Link Member

131; Pushlink 132; Upper link

133; Lower links 141, 142, 143, 144; Auxiliary support member

150; Variable drive 151; Variable drive rod

152; Variable transfer plate 153; Lifting guide shaft

Claims (3)

Rectangular base; A side support unit installed on an upper side of the base, the side support unit including four support plates moving linearly in a vertical direction with respect to each side of the base; A lifting plate installed on the upper side of the side support unit to move up and down linearly; Four auxiliary support plates which are linearly moved in parallel with the support plate on four side surfaces of the elevating plate, and installed to be in close contact with the side surfaces of the elevating plate by a plurality of elastic members; A variable drive source installed inside the side support unit below the lifting plate; And And a variable operating means for selectively raising or lowering the elevating plate by the variable driving source, and moving the four auxiliary supporting plates toward each side of the base when the elevating plate is raised. Support device. The method of claim 1, wherein the variable operation means, A variable moving plate fixed to the rod of the variable driving source; And Including four variable link members; The variable link member, One end is hinged to the variable movable plate, the other end push-button push the auxiliary support plate; One end is hinged to the lower surface of the lifting plate, the other end is an upper link hinged to the other end of the push link; One end is hinged to the upper plate of the side support unit, the other end is a lower link hinged coaxially with the other end of the upper link; When the variable movable plate is raised, the push link is horizontal to the upper surface of the base to push the auxiliary support plate to the outside, the upper link and the lower link is perpendicular to the push link to lift the lifting plate Variable internal support device. According to claim 1 or 2, wherein the side support unit, A rectangular upper plate fixed to the upper surface of the base by a plurality of fixing brackets; First, second, third, and fourth support plates disposed vertically with respect to the upper surface of the base between the base and the upper plate, and installed to linearly move with respect to each side of the base; A movable member installed inside the first, second, third, and fourth support plates, the movable member being configured to move up and down between the base and the top plate; First, second, third, and fourth link members connecting the movable member and inner surfaces of the first, second, third, and fourth support plates, respectively; And It is installed on the base, the drive source for raising and lowering the moving member; includes; When the moving member is moved by the driving source, the first, second, third, and fourth support plates are linearly moved on the upper surface of the base by the first, second, third, and fourth link members, respectively. Variable internal support device.