KR102023983B1 - Method for constructing elevator - Google Patents

Abstract

A method for constructing an elevator comprises the following steps of: installing a structure for operating the elevator in a hoist way; and repairing initial installation of the structure based on a test drive of the elevator moving up and down through the hoist way by the structure.

Description

How to install the elevator {METHOD FOR CONSTRUCTING ELEVATOR}

The present invention relates to an elevator installation method, and more particularly, to an elevator installation method that can achieve stability during operation by precisely installing the elevator in the process of installing the elevator in the hoistway formed inside the building.

In general, when building a high-rise apartment or office high-rise building, the building is inevitably installed an elevator, which is a vertical transportation means, and the elevator is a vertical lift, which is formed in a rectangular parallelepiped shape of the building Each layer is formed with an opening in communication with the hoistway.

The construction method of such an elevator is a hoistway in which people or cargoes move, and the hoistway construction process selects a hoistway in which an elevator moves, and then selects the hoistway at a wall surface of the hoistway in order to construct the hoistway at a selected hoistway location. The rebars are intersected in the longitudinal and transverse directions and then the concrete is constructed by placing concrete so that the rebars are embedded at the wall surfaces of the hoistway.

In the process of constructing the elevator rail along the height direction of the hoistway on the hoistway constructed as described above, the rail bracket is fixed to the wall surface of the hoistway, additional rail brackets are additionally fixed to the rail bracket fixed to the wall, and the additional rail The elevator rail is fixed to the bracket, and the elevator rail is installed continuously in the height direction of the hoistway.

However, the conventional elevator construction method does not evaluate whether the operation of the elevator is normally performed through the test operation process after construction, and thus, if the maintenance of a specific part is required during the actual operation process, additional costs and time are required. There is a problem that the repair work must be carried out.

Korea Patent Registration No. 10-0964722

One aspect of the present invention provides an elevator installation method in which the process of installing the structure for the operation of the eleventh, and the process of evaluating the accuracy of the installation of the structure based on the result of the trial run made after the initial installation.

The technical problem of the present invention is not limited to the technical problem mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the following description.

Elevator installation method according to an embodiment of the present invention, the installation of the structure inside the hoistway for the operation of the elevator, and the initial installation of the structure on the basis of the test run result of the elevator to move the hoistway up and down by the structure Repair.

The structure includes a base frame, a hoist, a guide rail, a first rope, a second rope, a weight and a control box, and installing the structure includes installing the base frame on the hoistway, the base Fixedly coupling the hoist to a frame, installing a pair of guide rails along an inner wall of the hoistway, binding an upper end of the guide rail to a lower end of the base frame, and connecting the base frame and the guide rail Installing a vibration damping unit on a portion to be installed; winding the first rope and the second rope on the hoisting machine, connecting the elevator to the first rope, and connecting the weight to the second rope. And installing the control box for controlling the structure at a predetermined position of the hoistway. Repairing the initial installation of the structure is based on a measurement value measured by at least one sensor installed in the structure in the commissioning process performed according to a control signal generated by the control box. The construction accuracy of the structure may be calculated, and the installation of any one of the plurality of modules constituting the structure may be readjusted based on the calculated construction accuracy.

According to one aspect of the present invention, it is possible to repair the first constructed structure in advance on the basis of the data generated during the commissioning process, and as the repair process is carried out step by step while minimizing the cost of the repair process The accuracy and reliability of the process can be improved.

1 is a diagram illustrating an example in which an elevator is installed in a hoistway using an elevator installation method according to an exemplary embodiment of the present invention.
Figure 2 is a flow chart illustrating a schematic flow of the elevator installation method according to an embodiment of the present invention.
3 to 9 are views showing a specific configuration of the structure according to the present invention.
10 is a flow chart illustrating a schematic flow of a plastic sheet manufacturing method according to an embodiment of the present invention.

DETAILED DESCRIPTION The following detailed description of the invention refers to the accompanying drawings that show, by way of illustration, specific embodiments in which the invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention. It should be understood that the various embodiments of the present invention are different but need not be mutually exclusive. For example, certain shapes, structures, and characteristics described herein may be embodied in other embodiments without departing from the spirit and scope of the invention in connection with one embodiment. In addition, it is to be understood that the location or arrangement of individual components within each disclosed embodiment may be changed without departing from the spirit and scope of the invention. The following detailed description, therefore, is not to be taken in a limiting sense, and the scope of the present invention, if properly described, is defined only by the appended claims, along with the full range of equivalents to which such claims are entitled. Like reference numerals in the drawings refer to the same or similar functions throughout the several aspects.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the drawings.

1 is a view showing an example in which an elevator is installed in a building using an elevator installation method according to an embodiment of the present invention, Figure 2 is a schematic flow of the elevator installation method according to an embodiment of the present invention is shown Flowchart.

Elevator installation method according to an embodiment of the present invention, the step (11 ~ 15) for installing the structure for the operation of the elevator 7 in the hoistway (5), and moving the hoistway (5) up and down by the structure Repairing the initial installation structure of the structure on the basis of the test run result of the elevator (7) may be made of (16-18).

In the present specification, the structure includes a base frame 100, a hoist 200, a guide rail 300, a first rope 410, a second rope 420, a weight 430, and a control box 500. As the elevator 7 moves in the vertical direction along the hoistway 5, it may mean modules installed to open and close the door at a specific position.

Structure installation step (11 ~ 15), step (11) for installing the base frame 100 on the hoistway (5), step (12) of fixing the hoisting machine 200 to the base frame 100, the hoistway ( Step 13 of installing the guide rail 300 along the inner wall of 5), winding the first rope 410 and the second rope 420 on the hoisting machine 200 and the hoistway 5 It may be configured as a step 15 of installing a control box 500 for controlling the structure at a predetermined position.

As shown in FIG. 3, the base frame 100 installation step 11 according to an embodiment of the present invention includes the base frame 100 in a state where the base frame 100 is positioned at a predetermined position above the hoistway 5. It may be a process of fixing the 100 to the inner wall of the hoistway 5 using a fixing means such as a bolt.

In this state, as illustrated in FIG. 4, the hoist 200 providing driving force to the first rope 410 and the second rope 420 may be fixedly coupled to the upper portion of the base frame 100.

In the step 13 of installing the guide rail 300, the pair of guide rails 300 are installed in a direction perpendicular to the ground along the inner wall of the hoistway 5, and the elevator 7 is moved along the guide rail 300. ) Can raise or lower the hoistway. The upper end of the guide rail 300 may be engaged with the lower end of the base frame 100.

In this case, as shown in FIG. 5, the vibration damping unit 330 according to the present invention may be installed at a portion where the base frame 100 and the guide rail 300 are connected and installed.

The vibration damping unit 330 is installed at a portion where the base frame 100 and the guide rail 300 are connected to each other to absorb vibration generated between the frames.

At this time, the base frame 100 and the guide rail 300 is connected to the installation portion to form a rotating shaft for rotation, the vibration damping unit 330 may be installed in the space formed by the rotation shaft.

In general, the guide rail 300 is a part in direct contact with the elevator 7, and may be deformed as vibrations and frictional heat are transmitted due to the lifting or lowering of the elevator 7, and in this case, the There is a problem in that the driving trajectory is changed from the normal path and a safety accident may occur.

Accordingly, in the present invention, by installing the vibration damping unit 330 in the portion where the base frame 100 and the guide rail 300 is connected, it can be transmitted to the guide rail 300 or the base frame 100. By attenuating the vibration, deformation of the guide rail 300 as described above can be minimized.

6 is a view illustrating the vibration damping unit of FIG. 5.

Referring to FIG. 6, the vibration damping unit 330 includes a support part 331, a vibration absorbing part 332, a connection plate 333, an extension plate 334, and an installation part 335.

The support part 331 is a first plate 331-1, a second plate 331-2, a third plate 331-3, and a fourth plate 331-4 that are formed of a plate having a “b” shape. ).

At this time, the first plate 331-1, the second plate 331-2, the third plate 331-3, and the fourth plate 331-4 are spaced apart from each other so as to face each other. As a form of the "+" form, and the vibration absorbing portion 332 is installed in the space spaced apart it can absorb the vibration transmitted to each plate.

The vibration absorbing part 332 is provided between each plate of the supporting part 331 and another plate, respectively, and absorbs a vibration.

In one embodiment, the vibration absorbing portion 332 may be formed by means of an elastic material such as a spring or rubber that can absorb shocks, provided that the vibration absorbing portion 332 is applied regardless of its name. This will be possible.

The connecting plate 333 is formed between the upper end of the first plate 331-1 and the upper part of the second plate 331-2 and the front end of the second plate 331-2 and the third plate 331-3. Between the front end, between the lower part of the third plate 331-3 and the lower part of the fourth plate 331-4, and between the front end of the fourth plate 331-4 and the front end of the first plate 331-1. It is installed so as to rotate two at each of the first plate (331-1), the second plate (331-2), the third plate (331-3) and the fourth plate (331-4) in the form of "+" Install the connection.

That is, the connecting plate 333 may not only interconnect the upper, lower, or front end of each plate to form an overall appearance, but also rotate each connecting portion to correspond to external vibrations or shocks. By adjusting the connection angle it is possible to more efficiently absorb vibration or shock.

That is, when the first plate 331-1, the second plate 331-2, the third plate 331-3, and the fourth plate 331-4 are fixed to each other by the connecting plate 333. It may be able to withstand some degree of external vibration or shock, but if critical vibration or critical shock is applied, it will not be able to hold it and the connection plate 333 installed on each plate will be damaged and will not be able to perform its original function. .

Accordingly, the connecting plate 333 according to the present invention, the first plate 331-1, the second plate 331-2, the third plate 331-3 and the fourth plate 331-4 By connecting to some extent possible, it is possible to maintain the fastening more efficiently to vibration or shock than the case described above.

The extension plate 334 includes an upper portion (ie, an upper wing) and a front end (ie, a front wing) of the first plate 331-1, an upper side and a front end of the second plate 331-2, and a third plate 331. -3) and two extending to the mounting portion 335 for each plate in the upper or lower direction from the lower and front ends of the fourth plate (331-4) and the front and bottom.

In one embodiment, the extension plate 334 may be rotated by the upper or lower portion is connected to the rotation shaft formed on the lower portion of the mounting portion 335.

The installation part 335 is connected and installed so that the upper part or the lower part of the two extension plates 334 extended from each plate may face each other and can rotate.

FIG. 7 is a view illustrating the first plate of FIG. 6.

Referring to FIG. 7, the first plate 331-1 may include a plate body 331-11, two first upper fastening grooves 331-12, a second upper fastening groove 331-13, and two The first shear fastening groove 331-14 and the second shear fastening groove 331-15 are included.

The plate body 331-11 is formed of a plate having a “b” shape, and forms two first upper fastening grooves 331-12 and second upper fastening grooves 331-13 on the upper wing, and shears Two first shear fastening grooves 331-14 and second shear fastening grooves 331-15 are formed in the blade.

The first upper fastening groove 331-12 is formed in the upper wing of the plate body 331-11 formed in the upward direction and connects and installs the front end of the connecting plate 333 to be rotatable.

The second upper fastening grooves 331-13 are formed between the first upper fastening grooves 331-12 to connect and install a lower portion of the extension plate 334 so as to be rotatable.

The first shear fastening grooves 331-14 are formed in the front blades of the plate body 331-11 formed in the shear direction, and connect the upper ends of the connection plates 333 so as to be rotatable.

The second shear fastening groove 331-15 is formed between the first shear fastening grooves 331-14 to connect and install the lower portion of the extension plate 334 so as to be rotatable.

In one embodiment, the extension plate 334, the second upper fastening groove 331 to allow the sliding movement in the vertical direction in the second upper fastening groove (331-13) or the second front fastening groove (331-15). -13 or the sliding groove 341 in the vertical direction can be formed in the lower portion connected to the second shear fastening groove (331-15).

In addition, the connection plate 333 may also form a sliding groove having the same structure as the sliding groove 341 of the extension plate 334 described above.

The first plate 331-1 having the above-described configuration is provided to the second plate 331-2, the third plate 331-3, or the fourth plate 331-4 which differ only in its installation position. The same applies to the bar, the description of the second plate 331-2, the third plate 331-3 or the fourth plate 331-4 will be omitted.

Thereafter, the first rope 410 and the second rope 420 are wound on the hoisting machine 200, and the elevator 7 is connected to the first rope 410, and the second rope 420 is illustrated in FIG. As shown in FIG. 8, the weight 430 may be fastened.

As a final step of installing the structure, as shown in FIG. 9, a process of installing the control box 500 for controlling the structure at a predetermined position of the hoistway 5 may be performed.

A circuit board for data processing may be installed in the control box 500, and the circuit board may be electrically and circuitly connected to at least one structure.

Therefore, the control box 500 may generate a control signal for starting the elevator 7, for example, by transmitting a control signal to the hoist 200, by the rotational force of the hoist 200, the first rope 410 or the first. The two ropes 420 may be moved to raise or lower the elevator 7. In addition, the control box 500 may determine whether each module installed by the structure installation process is normally installed.

That is, in the steps 16 to 18 of repairing the initial installation structure of the structure, the initial installation structure of the structure based on the test operation result of the elevator 7 in which the control box 500 moves up and down the hoistway 5 by the structure. Determination of whether to repair, and based on the determination result of the control box 500, a repair process for adjusting the installation position, angle, tightening strength, etc. of a specific structure can be performed.

In detail, the initial installation structure repair steps 16 to 18 may receive the measured values generated during the trial operation 16, calculate the construction accuracy of the specific structure based on the received measured values, and calculate 17. It may consist of step 18 of readjusting the installation based on the construction accuracy.

As described above, the control box 500 may transmit a control signal to the hoist 200 to allow the elevator 7 to be commissioned. In this process, the control box 500 may collect data on vibration, noise, heat, etc. generated during the commissioning process from at least one sensor installed in the structure. For example, the control box 500 may measure frictional heat according to an external force or an external force transmitted to the vibration attenuation part 300 during a test operation using sensing data received from a sensor installed near the vibration attenuation part 330. have.

The control box 500 may determine whether the corresponding structure is normally installed by comparing the received sensing data with a preset threshold. For example, the control box 500 may compare the data received from the respective sensors with a threshold value and determine that the module to which the sensor received the sensing data larger than the threshold value is attached is a module that requires a repair process.

As another example, the control box 500 of the vibration attenuation unit 300 by using sound data received from a sound sensor (for example, a microphone) that measures the sound generated by the operation of the vibration attenuation unit 300 during a test operation. You can determine which part needs to be corrected.

Acoustic data, that is, sounds generated by the vibration damping unit 300 have different frequencies generated by parts. That is, the sound generated from the vibration damping unit 300 may be a mixture of sounds generated while the vibration absorbing unit 332 is contracted or restored by external force (vibration), sounds generated while rotating between plates, and the like. Therefore, the sound generated by the vibration damping unit 300 may include sound information for various frequency bands.

Therefore, the control box 500 may divide the sound data by the preset frequency bands to divide the sound generated by the vibration damping unit 300 by parts, and calculate an average slope value for each frequency band. have. That is, the control box 500 extracts a frequency band having an average slope value greater than or equal to a reference value, analyzes signal strengths of the extracted frequency bands, measures slopes of the minute sections, and calculates average slopes of the measured slopes. Can be.

The control box 500 may determine which part of the vibration damping unit 300 should be corrected and constructed based on the average slope value calculated for each frequency band. For example, if the control box 500 determines that the average slope of the first frequency band is greater than or equal to the threshold value, the control box 500 may determine that the material of the first vibration absorbing unit 332 installed should be replaced with another material having a higher elastic force. have. As another example, when it is determined that the average slope of the second frequency band is greater than or equal to the threshold value, the control box 500 of the connection plate 333 connected between the first plate 331-1 and the second plate 331-2 may be used. It can be judged that a repair process for adjusting the tightening strength is necessary.

On the other hand, if it is determined that the average slope value of the plurality of frequency bands is higher than the threshold value, the control box 500 outputs a notification message that causes a repair process corresponding to the frequency band indicating the difference value with the threshold value to be preceded. Therefore, only one repair process for one module may be performed in one repair process. Therefore, according to the present invention, the accuracy and reliability of the repair process may be improved while minimizing the cost required for the repair process.

Meanwhile, the structure installed for driving the elevator 7 according to the present invention may be damaged by external force such as friction or impact, for example, the inner surface of the guide rail 300, the hoist 200 and the first rope ( 410 or the portion where the second rope 420 is in contact may be formed of a plastic sheet according to the present invention or a plastic sheet according to the present invention may be bonded.

Plastic sheet manufacturing method according to an embodiment of the present invention is 100 parts by weight of polyethylene terephthalate (polyethylene telephthalate, PET) resin, 2 to 4 parts by weight of polyurethane (polyurethane) dispersant, polyethylene dioxythiophene polystyrene sulfonate (polyethylene dioxythiophene polystyrene sulfonate) 0.1-0.2 parts by weight, polystyrolsulfonic acid, 3-5 parts by weight of N-methyl-2-pyrrolidone, triethyl amine 0.1 A first step of preparing a mixed composition by mixing 0.3 parts by weight, 42 to 45 parts by weight of isopropyl alcohol, and 50 to 52 parts by weight of water; Preheating the mixed composition; A third step of removing moisture of the preheated mixed composition; A fourth step of heating the mixed composition from which the moisture is removed; A fifth step of removing foreign substances from the heated mixed composition; A sixth step of stretching the mixture composition from which foreign substances have been removed while cooling to prepare a plastic sheet; And a seventh step of applying silicone to the plastic sheet and then drying it. The present invention can prepare a plastic sheet excellent in moldability and durability through mixing various additives to the conventional PET resin, preheating, dehumidification, heating and cooling.

The first step is a mixing step of the raw materials, the polyethylene terephthalate (PET) resin as a base resin, polyurethane dispersant, polyethylene dioxythiophene polystyrene sulfonate, poly Tyrol sulfonic acid (polystyrolsulfonic acid), N-methyl-2-pyrrolidone (N-methyl-2-pyrrolidone), triethyl amine (triethyl amine), isopropyl alcohol (isopropyl alcohol) and water is a step of mixing.

PET resin is a basic resin, has excellent thermal stability and high crystallinity, can be recycled, and can be used in the form of a master batch. Polyurethane dispersants serve to improve the miscibility with other components. Polyethylene dioxythiophene polystyrene sulfonate, polystyrolsulfonic acid, N-methyl-2-pyrrolidone and triethyl amine Functions as an antistatic agent. Since the plastic sheet for manufacturing a plastic container is generally an electrical insulator, static electricity is generated by frictional charging, and if it is severely caused by discharge or electric conduction, it may lead to an explosion or fire, so it is preferable to add a charging agent. . Isopropyl alcohol acts as an antifogging agent. The antifogging agent can suppress water condensation caused by water vapor which may occur when the plastic container is manufactured using the plastic sheet to store fruits and the like.

For example, the above-described raw materials are based on 100 parts by weight of polyethylene terephthalate (polyethylene telephthalate, PET) resin, 2 to 4 parts by weight of polyurethane dispersant, polyethylene dioxythiophene polystyrene sulfonate (polyethylene dioxythiophene polystyrene sulfonate) 0.1 0.2 parts by weight, 0.4-0.6 parts by weight of polystyrolsulfonic acid, 3-5 parts by weight of N-methyl-2-pyrrolidone, triethyl amine It is preferable to mix 0.1-0.3 weight part, 42-45 weight part of isopropyl alcohol, and 50-52 weight part of water. When added outside the above range, various problems may occur. In particular, in the case of the antistatic agent, when mixed over each range, the plastic surface to be produced may be sticky, the sealing and printability may be reduced, in the case of white plastic, yellowing may occur.

In addition, the first step may further mix various additional ingredients with the raw materials to enhance the functionality of the plastic sheet.

For example, the boron-based binder may be further mixed. The boron (B) -based binder is used to combine the respective components, the boron-based binder is preferably mixed in 2 to 10 parts by weight with respect to 100 parts by weight of PET resin. When the content of the boron-based binder is less than 2 parts by weight, the raw materials and the like cannot be effectively bound, and when the content of the boron-based binder exceeds 70 parts by weight, it is uneconomical.

For example, the garlic extract may be further mixed. Garlic extract is a natural adhesive component, and functions as a binder to improve the compatibility with other components along with the boron-based binder. The garlic extract is peeled and crushed garlic, 2 to 3 parts by weight of water per 1 part by weight of garlic, heated at 80-100 ℃ for 5 hours or more, the liquid component is extracted and filtered, and then filtered It can be prepared by concentrating the liquid component at 55 ~ 60 ℃. Garlic extract is preferably mixed 5 to 10 parts by weight with respect to 100 parts by weight of PET resin. If the content of the garlic extract is less than 5 parts by weight, the raw materials may not be properly entangled and the surface may not be formed evenly during plastic sheet production.If the content of the garlic extract is more than 10 parts by weight, the dispersibility and mixing properties of each component are rather There is a risk of deterioration.

For example, the apatite powder may be further mixed. The apatite powder functions as a filler and can maintain the shape of the plastic sheet to improve workability, maintain strength, and improve corrosion resistance. Apatite is an inorganic substance present in bone, and in order to use it as a filler, it is important to have a small particle size, high residual amount of carbonic acid, and low crystallinity. Preferably the size of the apatite granules is 200-400 μm. For this purpose, it is important to go through the sintering process at 500 ~ 700 ℃. When sintering at less than 500 ℃, there is a disadvantage that the size and crystallinity of the desired granules can not be obtained, when sintering above 700 ℃ has a disadvantage that the residual amount of carbonic acid groups is low, the crystallinity is too high. The apatite powder is preferably mixed at 20 to 30 parts by weight with respect to 100 parts by weight of the PET resin. If the content of the apatite powder is less than 20 parts by weight, there is a disadvantage that the adhesive strength is lowered, and if it exceeds 30 parts by weight, the impact resistance is weakened.

For example, the cork powder may be further mixed. Cork powder, together with the apatite powder, can improve the durability of the plastic sheet. Cork powder can be prepared by removing the bark of the oyster oak, and then grinding. As cork powder, it is preferable to use finely ground particles filtered into a mesh of 400 mesh or more for mixing with PET resin and the like. Cork powder is preferably mixed in 15 to 25 parts by weight based on 100 parts by weight of PET resin. If the cork powder is less than 15 parts by weight, the degree of improvement of durability is insignificant, and if it exceeds 25 parts by weight, voids may be formed inside the plastic during manufacture, so durability may be rather deteriorated.

For example, the hermit extract may be further mixed. The hermit extract not only acts as an antimicrobial agent, but also suppresses yellowing that may occur in white plastic sheets. Rumex crispus is a plant in the genus Rumex that grows in Korea. The hermit is a perennial herb that grows well in humid places around the country and uses young shoots for edible in the private sector. In Chinese medicine, yangje (양) is called cystitis, gallbladder disease, bile secretion disorders, spleen disease, skin disease, lymph node diseases, It is used as an adjuvant therapy for tumors and cancer. The hermit extract extracted from the hermit has antimicrobial and antioxidant effects against various microorganisms, and when used in combination with a small amount of sulfur, it has an excellent effect on skin itching. It is reported that useful components of the oxalic acid include saponins, tannins, flavonoids, essential oils and anthraquinone derivatives such as chrysophanol and emodin. The hermit extract is washed well with the collected hermit, dried in the shade and broken up into ground parts (except roots) and underground parts (root parts), and extracted with 80% (v / v) methanol for 3 days. After immersion, the extract can be filtered with a membrane filter (porosity 0.5 μm) to separate the solids, and the methanol extract can be prepared by concentrating at 50 ° C. using a rotary evaporator. The hermit extract is preferably mixed at 3 to 8 parts by weight based on 100 parts by weight of the PET resin. When the content of the hermit extract is less than 3 parts by weight, the antimicrobial activity is insignificant in the anti-yellowing effect, when it exceeds 8 parts by weight is uneconomical.

The second step is to preheat the mixed composition, by applying heat to the mixed raw materials to stably mix the raw materials.

The third step is a dehumidification step of removing the moisture present in the preheated mixed composition, dehumidification is preferably made in a temperature range of 150 ~ 180 ℃. If it is below or exceeding the above range, dehumidification is insufficient or may adversely affect the durability of the plastic.

The fourth step is a step of heating the mixed composition from which moisture is removed, and after melting the mixed composition, the heating temperature is preferably controlled to 260 to 270 ° C.

The fifth step is to remove foreign substances in the heated mixed composition, and may remove foreign matters inside the mixed composition by passing through a mesh-shaped screen.

The sixth step is a step of stretching while cooling the mixed composition from which foreign substances have been removed to prepare a plastic sheet, and stretching in two steps using a cooling roll. The primary stretching is made in the longitudinal direction through the cooling roll maintained at 16 ~ 17 ℃, the secondary stretching is made in the width direction (vertical direction in the longitudinal direction) through the cooling roll maintained at 20 ~ 23 ℃. The reason for raising the temperature of the secondary stretching above the primary stretching temperature is to prevent the plastic sheet to be solidified and to deteriorate in formability, and to improve the durability and formability of the plastic sheet by alternately stretching the longitudinal direction and the width direction. You can.

In the seventh step, the silicone sheet is applied to the plastic sheet and then dried, and the silicon sheet is coated and finished to obtain an antistatic effect. It is preferable to apply | coat silicone using the coating liquid diluted to the concentration range of 5-25%, and apply | coat silicone, and it is preferable to dry at 160-215 degreeC. In addition, it is preferable to mix the above-mentioned anti-fogging agent component with the coating liquid containing silicone in order to suppress the water phenomenon formed in the manufactured plastic container.

Hereinafter, the configuration of the present invention and its effects through specific examples and comparative examples will be described in more detail. However, this embodiment is intended to illustrate the present invention in more detail, and the scope of the present invention is not limited to these examples.

[Examples and Comparative Examples]

To prepare a mixed composition according to the composition of Table 1, after the preheating, dehumidification, heating, removing foreign matters, cooling and stretching, drying step to prepare a plastic sheet to prepare an example and a comparative example. Each material used commercially available material, and for the garlic extract and the hermit extract were prepared as described in the detailed description of the invention.

TABLE 1

Experimental Example 1

The compositions of Examples 1 to 3 and Comparative Examples were secondly stretched to prepare a 10 mm thick plastic sheet, and the uniformity of the sheet surface was measured and described in Table 2 below. At this time, the primary stretching was 16 ° C, and the secondary stretching was 21 ° C. Uniformity was measured using a laser sensor (N2 laser, oscillation wavelength 337.1nm, UDHO Laser. LTD., Japan), and 30 surface points were randomly selected to measure their surface roughness (standard deviation was used. , ± 0.3 or less were uniform, and more than ± 0.3 was evaluated as nonuniform. At this time, Examples 1-3 were extended in the width direction after extending | stretching in the longitudinal direction, and the comparative example extended | stretched only in the longitudinal direction.

TABLE 2

As in Table 2, in the case of Examples 1 to 3, both uniformity was superior to the comparative example.

Experimental Example 2: Torsion Test

The compositions of Examples 1 to 3 and Comparative Examples were secondly stretched to prepare a plastic sheet having a thickness of 2 mm, and then molded to prepare 100 plastic products, evaluated for completeness, and are shown in Table 3 below. At this time, Examples 1-3 were extended in the width direction after extending | stretching in the longitudinal direction, and the comparative example extended | stretched only in the longitudinal direction.

TABLE 3

As shown in Table 3, in Examples 1 to 3, more than 90% of the normal product can be made, but the comparative example has a relatively high defective rate.

Experimental Example 3: Yellowing Test

The compositions of Examples 1 and 3 were secondly stretched to prepare plastic sheets having a thickness of 2 mm, and then molded to prepare 100 white plastic products, which were visually observed for discoloration after 10 months, and are shown in Table 4 below. It was. At this time, the part which turned yellow was evaluated as defect.

TABLE 4

As shown in Table 4, in the case of Example 3, it was confirmed that almost all products did not discolor. On the other hand, Example 1 obtained good results, but the discoloration rate was relatively higher than that of Example 3.

Experimental Example 4: Antifog Test

After stretching the composition of Comparative Example and Example 3 to prepare a plastic sheet having a thickness of 2mm, and then molded by molding 100 white plastic products, after storing the spinach inside, after 1 day visually observed the inside It is shown in Table 5 below.

TABLE 5

As in Table 5, in the case of Example 3, almost no water droplets were formed, the comparative example was confirmed that the water droplets are enough to be identified with the naked eye.

Although the above has been described with reference to the embodiments, those skilled in the art will understand that various modifications and changes can be made without departing from the spirit and scope of the invention as set forth in the claims below. Could be.

5: hoistway
7: elevator
100: base frame
200: hoist
300: guide rail
330: vibration damping unit
410: first rope
420: second rope
430 weight
500: control box

Claims (2)

Install a structure for the operation of the elevator inside the hoistway,
Repair the initial installation of the structure on the basis of the test run result of the elevator to move the hoistway up and down by the structure,
The structure includes a base frame, a hoist, a guide rail, a first rope, a second rope, a weight and a control box,
Installing the structure, the step of installing the base frame on the hoistway, the step of fixing the hoisting machine to the base frame, a pair of the guide rail along the inner wall of the hoistway, the guide rail Binding an upper end of the base frame to a lower end of the base frame, and installing a vibration damping unit at a portion where the base frame and the guide rail are connected to each other, winding the first rope and the second rope on the hoisting machine, and Connecting the elevator to one rope, connecting the weight to the second rope, and installing the control box for controlling the structure at a predetermined position of the hoistway,
Repairing the initial installation of the structure is based on a measurement value measured by at least one sensor installed in the structure in the commissioning process performed according to a control signal generated by the control box. Calculates the construction accuracy of the; and readjusts the installation of any one of the plurality of modules constituting the structure based on the calculated construction accuracy;
Vibration damping unit for absorbing the vibration generated between the frame is installed in the portion where the base frame and the guide rail is connected,
The vibration damping unit may include: a support part including a first plate, a second plate, a third plate, and a fourth plate formed of a plate having a “b” shape; A vibration absorbing part installed between each plate of the support part and another plate to absorb vibration; Between the top of the first plate and the top of the second plate, between the front end of the second plate and the front end of the third plate, between the bottom of the third plate and the bottom of the fourth plate, and the fourth plate Two connecting plates each provided between a rear end of the rear plate and a rear end of the first plate to connect and install the first plate, the second plate, the third plate and the fourth plate; The upper and rear ends of the first plate, the upper and front ends of the second plate, the front and lower ends of the third plate, and the lower and rear ends of the fourth plate are formed to extend in each plate in the upper or lower direction Extension plates; And an installation unit in which an upper portion or a lower portion of two extension plates extending from each plate are installed to face each other and are rotatable. delete

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