KR101850343B1 - Impregnated liquid device for Corrugated cardboard of Impregnated liquid - Google Patents

Abstract

The present invention relates to a corrugated cardboard impregnated liquid impregnating apparatus in which impregnating liquid is impregnated efficiently by corrugated cardboard by automation, and comprises a corrugated cardboard tray 6 in which a plurality of corrugated cardboards 3 are accommodated, The impregnated liquid 4 is contained in the corrugated cardboard 3 of the tray 6 to be supplied for a predetermined time and the impregnated liquid 4 is impregnated into the corrugated cardboard 3 of the tray 6, A dehydration chamber 9 for dehydrating the impregnation liquid 4 impregnated in the corrugated cardboard 3 and a dehydration chamber 9 for moving the tray 6 of the dehydration chamber 9 to the drying chamber 10, A liquid water conveyor 11, an oil water separator 12 and a cooler 13 provided on the drying chamber 10, at least one hot air blower 14 for supplying hot air to the drying chamber 10, And the temperature sensor 16 and the tray 6 of the drying chamber 10 are moved to the outlet 5 of the impregnated liquid impregnating device 1, A funnel 19 for collecting the impregnation liquid 4 falling from the corrugated cardboard 3 of the desalination chamber 9 and the corrugated cardboard 3 of the drying chamber 10 into the collecting tank 18, A pump 21 and a pipe 21a for filtering the impregnation liquid 4 collected by the impregnation tank 8 and moving (or circulating) the impregnation liquid 4 to the impregnation tank 8. The present invention may further include a door (29) installed at the inlet of the impregnation tank (8) and elevating by the elevating means (28).

Description

Technical Field [0001] The present invention relates to a corrugated cardboard impregnated liquid impregnating apparatus,

The present invention relates to a corrugated cardboard impregnating liquid impregnating apparatus in which an impregnating liquid is efficiently impregnated and dried on cardboard by automation.

Generally, corrugated paper, which is a paper processed product, is a plate made by corrugator, which is a manufacturing facility, through the processes of bone formation, adhesion, drying and cutting. Corrugated cardboard is classified as A, B, C, E, D, AB, depending on the size of the bone, and is classified into double sided corrugated cardboard, triple sided corrugated cardboard, and multiple corrugated cardboard according to overlapping of double sided corrugated cardboard.

Although corrugated paper differs depending on the material of paper, thickness, size of corrugation, and overlapping of corrugated cardboard on both sides, it is basically made of pulp paper, so there is a limit to increase physical strength. To fall.

On the other hand, since the paper is made by drying pulp components, moisture, moisture, and moisture are repeatedly produced in order to achieve equilibrium with the moisture in the air. The adhesive for bonding the corrugated liner to the corrugated paper is also water- It is vulnerable to moisture.

In order to solve this problem, when the corrugated cardboard is impregnated with the adhesive resin solution and then dried, the resin is injected into the corrugated cardboard paper and hardened (adhered), thereby greatly increasing the physical strength of the corrugated cardboard. The resin solution is roughly divided into a water-soluble resin solution and an oil-soluble resin solution.

Examples of the water-soluble resin include urea resin, melamine resin, and phenol resin. Examples of the emulsified in water include organic materials such as acrylic resin, vinyl resin, styrene resin and epoxy resin, and inorganic materials such as sodium silicate and etchilicate.

When the water-soluble resin solution is impregnated with corrugated cardboard, it is advantageous in terms of environment, fire safety, and cost. However, water in the water-soluble resin solution is absorbed by the corrugated cardboard to weaken the paper, weaken the adhesive strength of the water- When the paper is twisted, there is a problem that the corrugated cardboard structure is broken due to adhesion between the corrugated paper and the liner.

On the other hand, when the oil-soluble resin solution is used as the impregnation solution, the organic solvent does not weaken the strength of the paper or the water-soluble adhesive and thus the structure of the corrugated cardboard is not broken. However, since there is environmental pollution and fire risk, The cost is increased.

In addition, conventionally, there is a problem that the efficiency (productivity) of the worker is impaired by impregnating the impregnated liquid while holding the corrugated cardboard, and also causing musculoskeletal diseases of the worker.

Korean Patent Publication No. 10-0417971 (entitled: synthetic resin corrugated cardboard box, its manufacturing apparatus and its manufacturing method, 2004. 02. 11. patent publication) Korean Utility Model Publication No. 1998-015061 (title of the invention: corrugated board coating apparatus, published on June 25, 1998) Korean Patent Registration No. 10-1486365 (entitled " Apparatus for manufacturing plastic corrugated cardboard and method thereof, patent publication no. 2015. 01. 26)

An object of the present invention is to provide a corrugated cardboard impregnated liquid impregnating apparatus in which an impregnating liquid is efficiently impregnated and dried on cardboard by automation.

A corrugated cardboard impregnated liquid impregnating apparatus according to the present invention is a corrugated cardboard impregnated liquid impregnating apparatus comprising: a tray accommodating a plurality of corrugated cardboard; a conveying carriage for lifting and moving the tray; a impregnation tank containing impregnation liquid; A transfer conveyor for transferring the tray of the liquid chamber to the drying chamber, a water separator and a cooler provided at the upper portion of the drying chamber, at least one hot air fan for supplying hot air to the drying chamber, at least one heat transfer heater installed in the drying chamber, And a door which is installed at the entrance of the drying chamber and at the central portion and the outlet, and which is opened and closed by the respective elevating means.

And a filter and a pump for purifying the impregnation solution of the collecting tank collected from the desalting chamber and the drying chamber to the impregnation tank.

And a door installed at the inlet of the impregnation vessel and opened and closed by the elevating means.

A rack gear provided on an inner surface of the one side rail; and a rack gear provided on the inner side of the one side rail, A pinion which is fixed to a rotary shaft of the motor and is gear-engaged with the rack gear, and an elevating means provided on the main body.

The elevating means includes a normal and reverse rotation motor installed horizontally on the upper surface of the main body, a pulley fixed to the rotation shaft of the motor, a wire fixed and wound on the pulley, a through- A plurality of vertical guide bars fixed to the upper surface of the steel plate, and guide pipes fixed to the main body and fitted with the vertical guide bars, respectively.

INDUSTRIAL APPLICABILITY The present invention has the effect of effectively impregnating corrugated cardboard with impregnated liquid by a series of automated processes or apparatuses, thereby greatly increasing productivity.

In the present invention, when a corrugated cardboard is impregnated with a liquid impregnation liquid (adhesive resin composition) and then dried, impregnation liquid penetrates into the liner and corrugated cardboard corrugated cardboard to form a hard adherent coating film.

According to the present invention, the corrugated cardboard structure is not broken due to the solid adhesion between the corrugated cardboard and the liner during the drying process by the impregnation liquid, and the water absorption in the air is blocked by the waterproof function, The lightweight property and structure are maintained, and the physical and mechanical properties such as compressibility, water resistance and moisture resistance are remarkably improved.

In addition, since a rigid hard-wearing moisture absorption protective layer resin film is formed on the outer surface and the inner cores, moisture and moisture present in the atmosphere are not absorbed, and the compressive strength of corrugated cardboard is improved, It is a very useful invention.

1 is a perspective view of a corrugated cardboard according to an embodiment of the present invention;
2 is a perspective view of a corrugated cardboard according to another embodiment of the present invention.
3 is a side view showing an example of the present invention.
Fig. 4 is a diagram showing an example of the present invention, in which the door is raised. Fig.
5 is a plan view showing an example of the present invention.
6 is a view showing the construction of a transportation car part shown as one example of the present invention.
7 is a side view of the state of use shown as an example of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the following description of the embodiments of the present invention, the same components as in the drawings are denoted by the same reference numerals as possible, and detailed descriptions of known configurations and functions are omitted so as not to obscure the gist of the present invention. May be different from what is actually implemented with the schematized drawings in order to easily describe the embodiments of the present invention.

The impregnated liquid impregnating apparatus 1 of the present invention is characterized in that the corrugated cardboard 3 injected into the inlet 2 is impregnated (impregnated) with the impregnated liquid 4, then deoiled and dried, . As shown in FIG. 1, the corrugated cardboard 3 may be a corrugated cardboard 3a having a plurality of corrugated cardboards joined together in a quadrangular shape, or a corrugated cardboard 3b having a plate or plywood form as shown in FIG. 2, Lt; / RTI > For example, it can be any one of corrugated paperboard, cardboard plywood, corrugated cardboard block, corrugated cardboard laminate board, agricultural and marine packing box, paper pallet, paper honeycomb, MDF.

3 and 4 are diagrams showing the construction of the impregnated liquid impregnating apparatus 1 shown in the embodiment of the present invention. The impregnated liquid impregnating apparatus 1 includes a tray 6 in which a plurality of corrugated cardboard 3 are accommodated, The impregnation tank 8 containing the impregnation liquid 4 so that the impregnated liquid 4 can be impregnated into the corrugated cardboard 3 of the tray 6 to be supplied for a predetermined period of time, A decalum chamber conveyor 11 for moving the tray 6 of the de-fluid chamber 9 to the drying chamber 10, At least one heat exchanger 14 for supplying a drying hot air at a predetermined temperature to the drying chamber 10 and at least one heat transfer heater 15 installed inside the drying chamber 10, A temperature sensor 16 and a drying chamber conveyor 17 for moving the tray 6 of the drying chamber 10 to the outlet 5 of the impregnated liquid impregnating device 1. [

The present invention relates to a funnel for collecting impregnation liquid (4) falling down from a corrugated cardboard (3) of a desalination chamber (9) and a drying chamber (10) A pump 21 and a pipe 21a for filtering (or circulating) the impregnation liquid 4 collected by the collecting tank 18 and filtering the impregnated liquid 4 to the impregnation tank 8 .

The tray 6 has a different structure depending on the shape of the corrugated cardboard 3. For example, in the case of the corrugated board 3a as shown in FIG. 1, the rectangular storage chamber 61 is formed of a plurality of chambers and several layers so that the corrugated cardboard 3a can be stored therein, (3b), a plurality of vertical storage chambers (62) are formed so that a plurality of corrugated cardboard sheets (3b) can be stored.

The outer surfaces (upper and lower surfaces, right and left side surfaces and front and rear surfaces) of the tray 6 and the storage chambers 61 and 62 are wire mesh or wire mesh structures of a predetermined mesh so that the impregnation liquid 4 can be easily lifted, 6 and the openings 63 are formed on both sides of the center of the upper surface.

The hook 64 is hooked on the lifting plate 30 while the hooks 31 having a shape of """fixed to the center of the bottom surface of the lifting plate 30 located below the transporting carriage 7 are hooked, And an open space portion 31a is formed in the hook portion 31 so that the ring 64 can be separated and coupled.

The tray 6 is configured to withstand the load applied by the corrugated cardboard 3 and the pressure generated when the impregnation liquid 4 is loaded and unloaded, A part or the entire upper surface may be made of a metal-made steel sheet, or a metal-made steel sheet may be additionally constructed.

The carriage 7 is provided with wheels 33, 34, 35 and 36 on both sides of the front and rear sides of the rectangular body 32 and the wheels 33, 34, 35 and 36, A rack gear 39 is provided on the inner side surface of one of the side rails 38 so as to be long in the longitudinal direction and one side surface of the main body 32 is rotated in the forward and reverse directions A pinion 41 meshing with the rack gear 39 is meshed with the rotation shaft of the motor 40 so that the conveyance carriage 7 Is moved in the longitudinal direction (A direction and B direction) of the rails 37 and 38. The wheels 33, 34, 35 and 36 are one flange or both flange so as not to leave the rails 37 and 38.

The conveying carriage 7 is provided with elevating means for elevating the elevating plate 30.

The elevating means includes a normal and reverse rotation motor 42 horizontally installed on the upper surface of the main body 32, a pulley 43 fixed to the rotary shaft of the motor 42, A through hole 45 opened upward and downward of the main body 32 and through which the wire 44 passes, an upper surface of the lifting plate 30 to which the end of the wire 44 is fixed, A plurality of vertical guide rods 47, 48, 49 and 50 fixed to the upper surface of the upper body 30 and a plurality of vertical guide rods 47, 48, 49 and 50 fixed to the main body 32, 50) are inserted into the guide pipes 51, 52, respectively.

The loop 64 of the tray 6 in which a plurality of corrugated cardboard sheets 3 are accommodated is hooked on the hook 31 in the storage chamber 61 or 62 and then the motor 42 is rotated by using the controller 66, The pulley 43 is rotated forward to rotate the wire 44 and the lifting plate 30 is lifted to a predetermined height in the direction C and the tray 6 in the state of being hooked on the hook 31 is raised to a predetermined height .

Conversely, when the motor 42 is rotated in the reverse direction by using the controller 66, the pulley 43 rotates in the reverse direction and the wire 44 wound on the pulley 43 is loosened and the lifting plate 30 is lowered in the D direction , And the tray 6 hooked on the hook 31 is also lowered.

Since the elevating plate 30 is guided in all directions by the plurality of vertical guide rods 47, 48, 49 and 50, the elevating plate 30 is maintained in a horizontal state during the elevating and lowering.

The wire 44 may be a chain or metal chain having excellent pulling force and supporting force and the motors 40 and 42 may be an inverter motor or a servo motor .

The present invention includes doors 25, 26 and 27 which are respectively installed at an entrance, a central portion and an outlet of a drying chamber 10 and are lifted and lowered by respective elevating means 22, 23 and 24 .

The elevating means 22, 23 and 24 are installed on the doors 25, 26 and 27 in consideration of the lift strokes of the doors 25, 26 and 27, 56 and 57 fixed to the rotary shaft of the motor 55, 56 and 57 and pulleys 58 and 59 and 60 fixed to the rotary shaft of the motor 55, The wires 67, 68 and 69 which are fixed and wound on the door 59 and 60 and the wires 67 and 68 and 69 which are fixed on the upper surfaces of the doors 25, End.

Sensing sensors or sensing switches L1 and L2 are provided on the upper and lower portions of the doors 25 and 26 to detect and control the opening and closing of the doors 25 and 26, It is needless to say that the opening and closing of the doors 25, 26 and 27 can be controlled by a control method.

Accordingly, when the motor 55, 56, 57 is rotated forward by using the controller 66, the pulleys 58, 59, 60 are rotated in the forward direction and the wires 67, 68, 69 are wound The doors 25, 26 and 27 are opened and opened so that the drying chamber 10 is opened and the motors 55, 56 and 57 are reversely rotated using the controller 66 When the pulleys 58, 59 and 60 are reversely rotated and the wires 67, 68 and 69 wound on the pulleys 58 and 59 and 60 are released, The drying chamber 10 is closed or closed while being lowered and closed.

The door 26 located at the center of the drying chamber 10 closes the dry tray 6 positioned between the doors 25 and 27 when the drying tray 10 is discharged to the outside of the drying chamber 10, There is an effect that the supercooling can be prevented.

The present invention further includes a door (29) installed at the inlet of the impregnation tank (8) and being lifted and lowered by the lifting means (28).

The elevating means 28 includes a motor 71 that is installed on the upper portion of the door 29 when the door 29 is lowered in consideration of the elevating stroke of the door 29 and rotated in normal and reverse directions by the controller 66, And a rack gear 73 meshing with the pinion 72 and fixed to one side of the door 29 in a vertical direction.

The door 29 is lowered and opened while the tray 6 of the inlet 2 is moved to the impregnation tank 8 and the tray 6 of the inlet 2 is not moved to the impregnation tank 8 It is preferable that the door 29 is raised so as to close the inlet of the impregnation tank 8 so that evaporation or odor of the impregnation liquid 4 does not flow out. Of course, the door 29 and the elevating means 28 are omitted You may.

The wires 67, 68 and 69 may be chains or metal chains excellent in pulling force and supporting force and the motors 55, 56, 57 and 71 may be rotated in the forward and reverse directions, Or position-controlled inverter motors or servo motors.

The door 29 can be opened and closed by providing a sensing sensor or a sensing switch at the upper and lower portions of the door 29. The position of the door 29 It is of course possible to control the opening and closing of the door.

When the motor 71 is rotated forward by using the controller 66, the rack gear 73 coupled to the pinion 72 is rotated while the pinion 72 is rotated forward, and the door 29 rises as shown in Figs. 4 and 7 The inlet of the impregnation tank 8 is closed and the motor 71 is reversely rotated by using the controller 66 to reverse the rotation of the pinion 72. As a result, The tray 6 in which the corrugated board 3 is accommodated is lifted in the C direction by using the conveying carriage 7 and the elevating means so that the B The impregnated liquid 4 is impregnated evenly into the corrugated cardboard 3 when the tray 6 is lowered to be immersed in the impregnating liquid 4 for a predetermined time.

When the impregnating liquid 4 is sufficiently impregnated, the tray 6 is lifted up to the upper portion of the impregnation tank 8 by the elevating means so that the lifting tray 6 is moved in the C direction When the tray 6 is lowered in the direction D by the elevating means and is placed on the decalcification conveyor 11 in the state where the tray 6 is stopped, the weight of the tray 6 and the weight of the corrugated cardboard (7) is moved in the C direction in such a state that the hooks (64) and the hooks (31) are separated from each other while the hooks (31) 31 are completely separated from each other, the elevating plate 30 is raised in the direction C and the tray 6 is placed on the decalcification conveyor 11 for a predetermined time, And the impregnation liquid 4 impregnated in an excess amount falls freely into the lower funnel 19 The impregnation liquid 4a collected by the collecting tank 18 and recovered into the collecting tank 18 is returned to the impregnation tank 8 by the pump 21 and is returned to the impregnation tank 8 by the filter 20, Foreign matter and the like are filtered.

When the transporting platform 7 moves in the direction A and stops at the top of the inlet 2 when the lifting plate 30 with the tray 6 separated therefrom ascends, the lifting plate 30 descends by the lifting means, 30 is lowered to the loop 64 of the tray 6 located at the inlet 2, the transporting carriage 7 moves in the direction A and the hook 31 is moved to the opening 64 of the loop 64 The lift plate 30 is lifted by the lifting means and the jammed tray 6 is raised in the direction C as well.

When the tray 6 is raised to a predetermined height, for example, above the upper surface of the impregnation tank 8, the transporting carriage 7 moves in the direction B to stop the tray 6 on the impregnation tank 8, The steel plate 30 is lowered in the direction D and the tray 6 is completely immersed in the impregnation liquid 4 of the impregnation tank 8 for a predetermined time so that the impregnation liquid 4 is impregnated with the corrugated cardboard 3.

When the motor 40 is rotated in the forward direction by the controller 66, the pinion 41 is rotated forward and the rack gear 39 engaged with the pinion 41 is fixed to the rail 38, B direction. Conversely, when the motor 40 is rotated reversely, the pinion 41 rotates reversely and the rack gear 39 meshed with the pinion 41 is fixed to the rail 38, so that the transportation truck 7 moves in the direction A do.

On the other hand, the trays 6b and 6c of the dehydration chamber 9 in which the impregnation liquid 4 is deaerated are moved to the drying chamber 10 by the decantation chamber conveyor 11, and the trays 6b and 6c are moved The doors 25 and 26 are raised by the elevating means 22 and 23 in advance.

The corrugated cardboard 3 of the trays 6d and 6e moved to the drying chamber 10 is dried for a predetermined time at a predetermined temperature by a plurality of hot air blowers 14 and an electrothermal heater 15, The trays 6d and 6e are moved and discharged in the direction of the outlet 5 by the drying chamber conveyor 17 while the doors 26 and 27 are opened by the elevating means 23 and 24, When the corrugated cardboard 3 of the trays 6d and 6e discharged to the outside is separated, a corrugated cardboard impregnated with the impregnating liquid is obtained.

The impregnated and dried corrugated cardboard is impregnated with the impregnating liquid into the liner and the corrugated paper to form a hard adherent coating film so that the physical strength is greatly improved and the physical strength of the corrugated cardboard is greatly improved because water absorption in the atmosphere is blocked by the waterproof function, The physical and mechanical properties such as compressibility, water resistance, moisture resistance, and the like of the corrugated cardboard are remarkably improved while maintaining the inherent light weight and structure.

The drying chamber 10 is structured such that the funnel 19 is covered with a roof and a wall and openable doors 25, 26 and 27. The organic solvent and moisture generated from the infiltrating liquid 4 during the drying process After flowing into the oil water separator (12) in the upper part of the drying chamber (10), the water and the organic solvent are separated, and the separated organic solvent is introduced into the cooler (13) and liquefied.

The temperature of the drying chamber 10 is detected by the temperature sensor 16 provided in the drying chamber 10 and input to the controller 66. The controller 66 compares the temperature inputted from the temperature sensor 16 with a preset temperature So that the hot air 14 and the electrothermal heater 15 are controlled so that the temperature of the drying chamber 10 can be maintained within the set temperature range so that the proper temperature for drying is maintained.

7, the tray 6a is introduced into the impregnation tank 8, and the impregnated liquid 4 is uniformly impregnated into the corrugated cardboard 3, and the tray 6b (6c The impregnation liquid 4 impregnated on the surface of the corrugated cardboard 3 and the impregnated liquid 4 impregnated in an excessive amount drop freely into the lower funnel 19 and are collected by the collecting tank 18, 18 is returned to the impregnation tank 8 by the pump 21 and the foreign matter or the like is filtered by the filter 20.

The trays 6b and 6c of the dehydration liquid chamber 9 in which the impregnation liquid 4 is deaerated are moved by the dehydration chamber conveyor 11 to the drying chamber 10.

The corrugated cardboard 3 of the trays 6d and 6e located in the drying chamber 10 is dried for a predetermined time at a predetermined temperature by the plurality of hot air blowers 14 and the electrothermal heater 15, The door is moved and discharged in the direction of the outlet 5 by the drying chamber conveyor 17 while the doors 26 and 27 are opened.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation, It is self-evident to those of ordinary skill.

(1) - impregnation solution impregnation device (2) - inlet
(3) (3a) (3b) - corrugated board (4) - impregnation liquid
(5) -outlet (6) -tray
(7) - Carrier truck (8) - Impregnation tank
(9) - decalcification chamber (10) - drying chamber
(11) - decant chamber conveyor (12) - oil separator
(13) - cooler (14) - hot air
(15) - Electric heaters (16) - Temperature sensors
(17) - Drying room conveyor (18) - Collection tank
(19) - Funnel (20) - Filter
(21) - Pumps (22) (23) (24) (28) - Lift means
(25) (26) (27) (29) - Door (30) - Steel plate
(31) - hook (32) - body
(33) 34 (35) (36) -Wheel (37) (38) -Rail
(37) - Racks (40) (42) (55) (56) (57) (71) - Motor
(41) (72) - Pinion (43) (58) (59) (60) - Pulley
(44) (67) (68) (69) - Wire (45) - Through hole
(47) (48) (49) (50) - Guide rod (51) (52) - Guide tube
(61) (62) - storage chamber (63) - opening
(64) - ring (66) - controller

Claims (4)

A tray in which a plurality of corrugated cardboards are accommodated and an outer surface and a storage chamber of the tray are made of a wire mesh of a predetermined mesh so that the impregnated liquid can be loaded and unloaded;
A ring formed at the center of the upper surface of the tray;
A conveyance truck that lifts and moves the tray;
The impregnation tank in which the corrugated board is charged for a predetermined time and impregnated with the impregnating liquid;
A deacidifying chamber for deaerating the impregnating solution impregnated in the corrugated cardboard;
A decalcification chamber conveyor for moving the tray of the decalcification chamber to the drying chamber;
A water separator and a cooler provided on the drying chamber;
At least one hot air blower for supplying hot air to the drying chamber;
At least one electrothermal heater installed inside the drying chamber;
A drying chamber conveyor for moving the tray of the drying chamber to the outlet;
A door installed at an entrance of the drying chamber, a center portion and an outlet of the drying chamber, respectively, and being opened and closed by respective elevating means; , ≪ / RTI &
The conveyance truck,
A plurality of wheels provided on both sides of the front and rear sides of the rectangular body;
A pair of rails on which the wheels roll;
A rack gear provided on an inner surface of the one side rail;
A normal / reverse rotation motor fixed to one side of the main body;
A pinion fixed to a rotary shaft of a normal / reverse rotation motor fixed to one side surface of the main body and to be engaged with the rack gear;
A lift plate positioned on a lower surface of the transportation truck;
A hook having an open space formed at the center of the bottom surface of the lifting plate and separating the hooks;
A lifting means installed on the main body;
Wherein the corrugated impregnated liquid impregnating apparatus comprises: delete delete The method of claim 1,
The elevating means provided on the main body includes:
A normal / reverse rotation motor installed horizontally on an upper surface of the main body;
A pulley fixed to a rotating shaft of a forward and reverse rotary motor installed horizontally on an upper surface of the main body;
A wire fixed and wound on the pulley;
A through hole opened above and below the main body and through which the wire passes;
A lifting plate to which an end of the wire is fixed;
A plurality of vertical guide rods fixed to the upper surface of the lifting plate;
A guide pipe fixed to the main body and fitted with the vertical guide rods, respectively;
Wherein the corrugated impregnated liquid impregnating apparatus comprises:

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