Welding machine for synthetic resin

Abstract

The present invention relates to a welding machine for a synthetic resin and, more specifically, to a welding machine for a synthetic resin, including an entry friction roller which operates to appear above a worktable or disappear therebelow and is made of a rubber material, and a welding roller which descends to hold a fabric, the welding roller being provided with a frictional force with the entry friction roller in a process of rotation process thereof, so that a uniform welding work, such as that a fabric made of a rigid material is easily entered and discharged, is possible; and also including a discharge guide roller and a friction roller at a rear side of the worktable, the friction roller having a frictional force with the discharge guide roller and being made of a rubber material, the discharge guide roller and the friction roller pulling a fabric from the rear side in a process in which the fabric is discharged, to enable the fabric to be smoothly discharged.

Description

Welding machine for synthetic resins

[0001] The present invention relates to a welding machine for synthetic resins, and more specifically, to a welding machine for synthetic resins that enables welding using hot air and ultrasonic vibration energy, while allowing smooth entry and exit of fabric between an upper welding roller made of metal and a lower ultrasonic horn.

[0002] Recently, with the increase in leisure and hobby activities, various functional clothing, coverings, tents, etc. are being widely used.

[0003] Fabrics for various types of clothing, such as these, are usually required to have a basic waterproof function, and are produced using waterproof fabrics that have a waterproof function.

[0004] Accordingly, fabrics that require waterproofing, such as functional clothing, coverings, tents, and other fabrics, are manufactured using the above-mentioned waterproof fabrics so that they faithfully perform their original function while also being waterproof, allowing them to be prepared for rainy weather.

[0005] Accordingly, the waterproof fabrics as described above can be secured by joining them together through welding, and the heat welding method is mainly used as the welding method.

[0006] Meanwhile, hot air, ultrasonic, high frequency, rotation, and vibration welding methods are being applied as heat welding methods.

[0007] Among them, hot air welding is mainly used to bond waterproof tape to the sewing part of fabric. High temperature hot air is applied to the waterproof tape to melt it to a certain degree, and at the same time, the waterproof tape is bonded to the sewing part of the fabric and passed between upper and lower rollers made of rubber.

[0008] However, the hot air welding method described above is one in which high-temperature hot air is discharged over a relatively large area, and although it was possible to melt and bond relatively thin waterproof tapes, there was a serious problem in that when thick fabrics such as tents were overlapped and bonded, the waterproof coating around the bonding surface of the fabrics would burn and peel off due to excessive hot air.

[0009] In particular, in the past, general PE and PVC coating materials were used for waterproof coating on tents, etc., but recently, polymer coatings made of eco-friendly materials are being applied to prevent environmental pollution. However, in the case of hot air as mentioned above, if weak hot air is applied, the decomposition power of the polymer decreases, preventing proper bonding, and if excessive hot air is applied, there was a problem that the coating surface burned.

[0010] Accordingly, in order to solve the above problems, an ultrasonic welding method is applied in which ultrasonic vibration energy is transmitted to the welded material through an ultrasonic horn, causing instantaneous frictional heat to be generated at the joint surface of the welded material between the upper welding roller and the welded material, thereby melting and bonding the synthetic resin and forming a strong molecular bond.

[0011] However, the conventional welding method using a welding roller and an ultrasonic horn as described above has a serious problem in that the welding wheel and the ultrasonic horn are both made of metal, and when a strong fabric enters, the frictional force decreases, causing the fabric to slip, making it difficult to properly enter and exit the fabric, and this makes it difficult to perform a uniform welding operation.

[0012] [Patent Document]

[0013] (Patent Document 1) Republic of Korea Patent No. 10-2088557.

[0014] (Patent Document 2) Republic of Korea Patent No. 10-2405061.

[0015] The present invention was created to solve the above-mentioned problems, and the purpose of the present invention is to provide a synthetic resin welding machine that enables uniform welding work by configuring an entry friction roller made of rubber that rises and falls from the bottom of the worktable to hold the fabric, and at the same time, by imparting frictional force with the entry friction roller during the rotation process, thereby facilitating the entry and discharge of strong fabric.

[0016] In addition, the purpose of the present invention is to provide a synthetic resin welding machine that configures a discharge guide roller and a friction roller made of rubber having frictional force with the discharge guide roller at the rear of the work table, thereby pulling the fabric from the rear during the discharge process to enable smooth discharge.

[0017] As a specific means for achieving the above purpose, a main body is formed with a work table formed with a horn extraction hole and a fabric support bar on one side of the middle portion, and a support arm formed with a horizontal protrusion toward the upper portion of the work table and an upper guide formed at the front to guide the entry of the fabric from the upper portion;

[0018] A platform formed on the above support arm and operated to move up and down by cylinder operation, having a welding roller formed of metal and operating to rotate at the bottom, and an upper guide formed at the front to guide the entry of fabric from the top;

[0019] A hot air generating means formed on the above-mentioned elevator and having a heater rod that rotates left and right;

[0020] An ultrasonic generator formed at the bottom of the workbench and consisting of an ultrasonic horn and a housing that are pulled out to the top of the workbench through a vibrator, a booster, and a horn extraction hole, and that is installed on the bottom of the workbench to apply vertical rotational force and generate ultrasonic vibration energy;

[0021] A rotary driving means formed on the bottom surface of the above worktable, comprising a driving motor and a rotary shaft, the rotary shaft being connected to the ultrasonic generator by a belt pulley to provide rotary force to the ultrasonic generator;

[0022] A lower guide formed at the upper front of the workbench to guide the entering fabric from below;

[0023] An entry guide means that operates by forming and exiting through a hole formed at the bottom of the work table and applying rotational friction to the welding roller to control the entry and exit of the fabric; and

[0024] It is configured to include a discharge guide means formed on the work table and support arm at the rear side of the work table and provides discharge force to the fabric discharged to the rear.

[0025] The above entry guide means is,

[0026] Installation bracket formed to be fixed to the bottom of the workbench;

[0027] First, a pivoting member that is hingedly connected to the lower part of the above-mentioned installation bracket and rotates;

[0028] A cylinder formed vertically on the above installation bracket, and having a cylinder rod connected to the middle of the pivot table to rotate the front of the pivot table up and down;

[0029] A pair of roller mounting bars on both sides, one end of which is connected to both sides of the above-mentioned rotary table, the other end of which protrudes toward the horn extraction hole, and which rotates up and down by the rotational operation of the above-mentioned rotary table;

[0030] An entry friction roller made of rubber and mounted on each of the roller mounting bars; and

[0031] It is configured to include a stroke adjustment bolt that is vertically screwed to the above installation bracket and is supported on the upper part of the rotation table when the rotation table is operated to adjust the rotation angle.

[0032] This can be achieved by configuring the rotational motion of the rotary table by the above cylinder operation so that the entry friction roller protrudes from the upper part of the ultrasonic horn or is drawn in from the lower part.

[0033] As described above, the synthetic resin welding machine of the present invention is configured with an entry friction roller that rotates up and down on both sides of the lower ultrasonic horn, so that when a rigid fabric is entered, smooth entry is possible due to rotational friction between the upper welding roller and the entry friction roller, and thus, an effect of uniform welding work can be obtained.

[0034] In addition, a discharge guide roller and a friction roller are configured at the rear of the work table, so that rotational friction pulling from the rear can be applied to achieve the effect of guiding the smooth discharge of the fabric.

[0035] Fig. 1 is a perspective view of a synthetic resin welding machine of the present invention.

[0036] Figure 2 is a rear perspective view of the synthetic resin welding machine of the present invention.

[0037] Figure 3 is a perspective view of the main parts of the synthetic resin welding machine of the present invention.

[0038] Figure 4 is a perspective view of the rear part of the synthetic resin welding machine of the present invention.

[0039] Fig. 5 is a side view showing the interior of a synthetic resin welding machine of the present invention.

[0040] Fig. 6 is a schematic diagram showing the inside of a synthetic resin welding machine of the present invention.

[0041] Figure 7 is a schematic diagram showing a fabric guide means of a synthetic resin welding machine of the present invention.

[0042] Figure 8 is a main part diagram of the cooling section of the synthetic resin welding machine of the present invention.

[0043] Figure 9 is a schematic diagram showing an entry guide means of a synthetic resin welding machine of the present invention.

[0044] Figure 10 is a schematic diagram showing a discharge guide means of a synthetic resin welding machine of the present invention.

[0045] Figure 11 is a diagram showing the state of fabric entry into the synthetic resin welding machine of the present invention.

[0046] Figure 12 is a diagram of the fabric welding state of the synthetic resin welding machine of the present invention.

[0047] Figure 13 is a diagram showing the state of the raw material discharge of the synthetic resin welding machine of the present invention.

[0048] [Explanation of symbols]

[0049] 100: Main body 110: Workbench

[0050] 111: Horn extraction hole 112: Fabric support bar

[0051] 120: Support arm 130: Upper guide

[0052] 131: Support 132: Extension

[0053] 133: Control block 134: Upper fabric entry platform

[0054] 135: Upper fabric entry home

[0055] 200: Lifting platform 210: Welding roller

[0056] 300: Hot air generating means 310: Heater rod

[0057] 311: Hot air nozzle

[0058] 400: Ultrasonic generator 410: Vibrator

[0059] 420: Booster 430: Ultrasonic Horn

[0060] 440: Housing

[0061] 500: Rotating drive means 510: Drive motor

[0062] 520: Rotating shaft 521,522: Belt pulley

[0063] 600: Lower guide 610: Rail member

[0064] 611: Moving Guide Home 620: Lower Fabric Entry Platform

[0065] 621: Lower fabric entry groove 622: Long hole

[0066] 700: Entry guide means 710: Installation bracket

[0067] 720: Rotating table 730: Cylinder

[0068] 731: Cylinder rod 740: Roller mounting bar

[0069] 750: Entry friction roller 760: Stroke adjustment bolt

[0070] 800: Discharge guide means 810: Discharge guide roller

[0071] 820: Rotating shaft 821: Bracket

[0072] 830: Cylinder 831: Cylinder rod

[0073] 832: connecting rod 840: rotating friction means

[0074] 850: Connecting bracket 851: Spring hanger

[0075] 852: Mounting bar installation groove 860: Roller mounting bar

[0076] 861: Axis 862: Spring connecting plate

[0077] 863: stumbling block 870: discharge friction roller

[0078] 880: Tension spring

[0079] 1000: Cooling section 1010: Air supply pipe

[0080] 1020: Air distribution pipe 1021,1021': Air discharge hole

[0081] Terms or words used in this specification and claims should not be interpreted as limited to their usual or dictionary meanings, but should be interpreted as meanings and concepts that conform to the technical idea of ​​the present invention, based on the principle that the inventor can appropriately define the concept of the term to explain his or her own invention in the best way.

[0082] Accordingly, the embodiments described in this specification and the configurations illustrated in the drawings are only the most preferred embodiments of the present invention and do not represent all of the technical ideas of the present invention. Therefore, it should be understood that there may be various equivalents and modified examples that can replace them at the time of filing this application.

[0083]

[0084] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings.

[0085] Fig. 1 is a perspective view of a synthetic resin welder of the present invention, Fig. 2 is a rear perspective view of a synthetic resin welder of the present invention, Fig. 3 is a perspective view of a main part of a synthetic resin welder of the present invention, Fig. 4 is a rear perspective view of a main part of a synthetic resin welder of the present invention, Fig. 5 is a side view of a main part showing the inside of a synthetic resin welder of the present invention, and Fig. 6 is a perspective view of a main part showing the inside of a synthetic resin welder of the present invention.

[0086] As shown in the drawings of FIGS. 1 to 6, the synthetic resin welding machine (1) of the present invention is composed of a main body (100), a platform (200), a hot air generating means (300), an ultrasonic generator (400), a rotation driving means (500), a lower guide (600), an entry guide means (700), and an exhaust guide means (800).

[0087] First, the main body (100) is configured to form the basis of the synthetic resin welding machine (1) of the present invention, and various systems are constructed and configured to form a vertical body shape.

[0088] In addition, the main body (100) is configured with a worktable (110) to enable work to be performed. The worktable (110) is configured in a plate shape and is configured to be installed horizontally on one side of the main body (100).

[0089] And, a horn extraction hole (111) is formed through the work table (110) to enable the protrusion of the ultrasonic horn (430) of the ultrasonic generator (400) described later.

[0090] And, on the work table (110), a horizontal fabric support bar (112) is configured to enable support of the fabric to be welded on the upper front side thereof.

[0091] In addition, the main body (100) is configured with a support arm (120) that is configured to protrude horizontally from the upper portion to the upper portion of the work table (110). The support arm (120) is configured in a box shape, and a typical operation panel, etc. are constructed.

[0092] In addition, the support arm (120) is provided with an upper guide (130) that guides the entry of the upper fabric to be welded.

[0093] At this time, referring to Fig. 7, the upper guide (130) is first formed with a support member (131) in the form of a bent rod that protrudes downward from the front of the support arm (120) and is bent horizontally.

[0094] In addition, the upper guide (130) is configured to have an extension (132) coupled to the end of the support (131), and the extension (132) is configured to be fastened to the support (131) via a bolt (B) through an adjustment block (133), and is configured to form a bent bar shape with a lower protrusion and a lower end that is bent horizontally, and is configured to be able to adjust left and right movement on the support (131) by adjusting the fastening of the bolt (B).

[0095]

[0096] In addition, the upper guide (130) is provided with an upper fabric entry member (134), and the upper fabric entry member (300) is mounted at a bent horizontal position of the extension member (132), and is provided with an upper fabric entry groove (213) that is opened to the front, rear, and one side (right side in the drawing).

[0097] The above-mentioned elevator (200) is configured to pressurize and release the fabric by an up-and-down lifting operation in forming the synthetic resin welding machine (1) of the present invention.

[0098] To this end, a lift platform (200) is formed at the end of the support arm (120) and is configured to move up and down along an LM guide (not shown in the drawing) by a conventional cylinder (not shown in the drawing) or the like.

[0099] And, the elevator (200) is provided with a metal welding roller (210) that rotates by a conventional motor (not shown in the drawing) at the bottom thereof. At this time, the welding roller (210) is provided with a conventional knurling treatment on the surface to prevent slipping with the fabric.

[0100] The above hot air generating means (300) is configured to provide hot air necessary for welding work in configuring the hot air and ultrasonic combined synthetic resin welding machine (1) of the present invention.

[0101] To this end, the hot air generating means (300) is not newly implemented, but is a conventional hot air generating means (300), and a heater rod (310) is formed on the elevator (200) to enable left and right rotation operation through a separate rotation means (not shown in the drawing), and a hot air nozzle (311) is formed at the bottom of the heater rod (310) to enable hot air discharge.

[0102] The above ultrasonic generator (400) is configured to generate ultrasonic vibration energy for providing frictional heat when forming the synthetic resin welding machine (1) of the present invention.

[0103] To this end, in the present invention, the ultrasonic generator (400) is configured such that a conventional vibrator (410) and a booster (420) are formed horizontally, and an ultrasonic horn (430) in the form of a circular plate having a thickness corresponding to the welding area is vertically formed at the end of the booster (420), and the vibrator (410) and the booster (420) are configured to be surrounded by a housing (440).

[0104] At this time, in the present invention, the ultrasonic generator (400) is configured to operate in a vertical rotation direction, and is mounted on the bottom surface of the work table (110) with a bearing (not shown in the drawing) or the like to have a vertical rotation force.

[0105] In particular, in the present invention, the ultrasonic horn (430) is configured to have a disk shape with a predetermined thickness, and its upper part is configured to protrude to the upper part of the work table (110) through the horn extraction hole (111) of the work table (110).

[0106] In addition, the synthetic resin welding machine (1) of the present invention may further include a cooling unit (1000) that cools the ultrasonic horn (430) of the ultrasonic generator (400).

[0107] At this time, the cooling unit (1000) is configured with an air supply pipe (1010) that can supply air to the synthetic resin welding machine (1) of the present invention, referring to FIG. 8, and the air supply pipe (1010) is configured to be fixed to the lower part of the work table (110).

[0108] Meanwhile, in the present invention, the air supplied to the air supply pipe (1010) is not shown in the drawing, but may be supplied through a conventional air supply device (not shown in the drawing) such as a compressor that is separately provided with the synthetic resin welding machine (1) of the present invention.

[0109] In addition, the cooling unit (1000) is configured with an air distribution pipe (1020) capable of dispersing air supplied through the air supply pipe (1010). The air distribution pipe (1020) is configured to extend vertically from the end of the air supply pipe (1010) in an “L” shape, and is configured to be spaced apart from one side of the ultrasonic horn (430).

[0110] And, the air distribution pipe (1020) is configured with a plurality of air discharge holes (1021)(1021') to enable air discharge, and air is discharged to the side of the ultrasonic horn (430) to cool the ultrasonic horn (330).

[0111] The above-mentioned rotary driving means (500) is configured to control the rotation of the ultrasonic generator (400) and the discharge guide means (800) described later when forming the synthetic resin welding machine (1) of the present invention.

[0112] To this end, the rotary driving means (500) is first configured with a driving motor (510), and the driving motor (510) is configured to be mounted parallel to the ultrasonic generator (400) at the rear of the bottom surface of the work table (110).

[0113] In addition, the rotary drive means (500) is configured with a rotary shaft (520), and the rotary shaft (520) is connected to the driving motor (510) to have a rotary force, and is configured to be installed on a worktable (110).

[0114] At this time, the driving motor (510) is configured to provide rotational power to the ultrasonic generator (400), and the rotation shaft (520) is connected to the housing (440) of the ultrasonic generator (400) by a belt pulley (521), so that when the rotation shaft (520) rotates, the ultrasonic generator (400) can be rotated in a vertical direction.

[0115] The above lower guider (600) is configured to guide the entry of the fabric from the bottom when the fabric for the welding operation is entered in the synthetic resin welding machine of the present invention, and is positioned at the bottom of the upper guider (130).

[0116] First, the lower guide (600) is composed of a rail member (610), and the rail member (610) is fixedly installed on one side of the horn extraction hole (111) at the top of the work table (110), and a moving guide groove (611) forming a left-right length is composed at the top.

[0117] In addition, the lower guide (600) is configured with a lower fabric entry member (620), and the lower fabric entry member (620) is configured to be slidably coupled to the moving guide home (611).

[0118] And, on one side (left side in the drawing) of the lower fabric entry plate (620), a lower fabric entry groove (621) that is open to the front, back, and sides is formed.

[0119] And, the lower fabric entry plate (620) is provided with a plurality of long holes (622) spaced at regular intervals on the left and right, and the bolt (B) is fastened and fixed through the long holes (622).

[0120] Accordingly, the lower fabric to be welded can be stably inserted with one side thereof entering and being supported in the lower fabric entry groove (621).

[0121] The above-mentioned entry guide means (700) provides frictional force to the fabric to be welded when configuring the synthetic resin welding machine (1) of the present invention, thereby facilitating the entry and discharge of the fabric for welding work.

[0122] To this end, referring to Fig. 9, the entry guide means (700) is first configured with an installation bracket (710), and the installation bracket (710) is configured to be bent in an “ㄱ” shape and mounted on the front lower portion of the work table (110).

[0123] In addition, the entry guide means (700) is configured with a pivot (720), and one end of the pivot (720), that is, the front end, is connected to the lower end of the installation bracket (710) by a hinge (721) so that the front can rotate up and down.

[0124] In addition, the entry guide means (700) is configured with a cylinder (730), and the cylinder (730) is configured to be vertically mounted on the installation bracket (710), and a cylinder rod (731) is configured to vertically eject and retract downwards, but the cylinder rod (731) is configured to be connected to the middle of the pivot (720) so as to control the up and down rotation of the pivot (720) by the eject and retract operation.

[0125] In addition, the entry guide means (700) is configured with a pair of roller mounting bars (740) that are symmetrical on both sides, and the roller mounting bars (740) are configured to have a bent bar shape, with one end connected to the rear end of the pivot (720) and the other end protruding rearward toward the horn extraction hole (111), and are configured to be arranged on both sides of the ultrasonic horn (430).

[0126] In addition, the entry guide means (700) is configured with an entry friction roller (750), and the entry friction roller (750) is configured to be vertically installed at the rear end of each roller mounting bar (740) and rotated by friction with the fabric.

[0127] In addition, the entry guide means (700) is configured with a stroke adjustment bolt (760) that is vertically screw-connected to the installation bracket (110), and the stroke adjustment bolt (760) is configured so that the lower end of the rotational base (720) is supported by the upper rear portion of the rotational base (720) when the entry friction roller (750) rotates upward, thereby limiting the rotational angle of the rotational base (720), that is, adjusting the degree of rotation of the upper portion of the entry friction roller (750).

[0128] Accordingly, the entry guide means (700) rotates the rotary table (720) and the rear end of the roller mounting bar (730) rotates downward when the cylinder rod (731) is pulled out by the operation of the cylinder (30), so that the entry friction roller (750) is hidden in the horn extraction hole (111), and when the entry is made, the rotary table (720) rotates so that the entry friction roller (750) protrudes a predetermined amount above the horn extraction hole (111) and the upper part of the ultrasonic horn (430), and when the welding roller (210) is lowered, it presses the cylinder rod (731) to forcefully retract the cylinder rod so that its circumference forms the same plane as the circumference of the ultrasonic horn (430).

[0129] The above discharge guide means (800) enables stable discharge of the welded fabric during the discharge process when configuring the synthetic resin welding machine (1) of the present invention.

[0130] To this end, referring to Fig. 10, the discharge guide means (800) is first configured with a discharge guide roller (810), and the discharge guide roller (810) is configured to be rotatable by being installed at the rear of the work table (110) with a left-right length.

[0131] At this time, the discharge guide roller (810) is configured to be rotatable by the above-mentioned rotational driving means (500), and for this purpose, it is configured to be connected to the rotational shaft (520) of the rotational driving means (500) by a belt pulley (522).

[0132] That is, the discharge guide roller (810) is a rotational shaft (520) of the rotational driving means (500) that provides rotational force to the ultrasonic generator (400), and has the same rotational force as the ultrasonic generator (400), so that the welding work and discharge are performed in the same manner.

[0133] In addition, the discharge guide means (800) is configured with a rotating shaft (820), and the rotating shaft (820) is installed at the rear of the support arm (120) through a bracket (821) or the like so as to be rotatable parallel to the discharge guide roller (810).

[0134] In addition, the discharge guide means (800) is configured with a cylinder (830), and the cylinder (830) is vertically mounted at the rear center of the support arm (120) and is configured to have a cylinder rod (831) that operates to extend downward.

[0135] At this time, the cylinder rod (831) is configured such that its lower end is connected to the rotary shaft (820) through a connecting member (832), and is configured to prevent the forward and reverse rotation of the rotary shaft (820) during the launching operation.

[0136] In addition, the discharge guide means (800) is configured with a rotary friction means (840) that interferes with the discharge guide roller (810) to provide a rotary friction force to enable smooth discharge of the fabric, and a plurality of rotary friction means (840) are configured at regular intervals on the left and right.

[0137] At this time, the rotary friction means (840) is first configured with a connecting bracket (850), and the connecting bracket (850) has a shape that is open at the bottom, and the rear end is fixedly mounted to the rotary shaft (820), and spring hooks (851) are configured to protrude on both front sides.

[0138] And, a mounting bar installation groove (852) is cut into the front of the connecting bracket (850) so that a roller mounting bar (860) described later can be mounted thereon.

[0139] In addition, the rotary friction means (840) is configured with a roller mounting bar (860), and the roller mounting bar (860) is configured to have a front-back length, and its rear end is configured to be connected to an axis (861) in front of the connecting bracket (850) to rotate, while the front is configured to face downward.

[0140] And, the roller mounting bar (860) has a spring connecting plate (862) corresponding to the spring hook (851) formed in the middle thereof.

[0141] And, the roller mounting bar (860) has a protruding hook (863) that is hooked to the connecting bracket (850) at the upper rear portion thereof to prevent the lower rotation of the roller mounting bar (860).

[0142] In addition, the rotating friction means (840) is configured with a discharge friction roller (870). The discharge friction roller (870) is configured with a rubber material to have frictional force, and is configured to be rotatably installed at the tip of the roller mounting bar (860).

[0143] In addition, the rotating friction means (840) is configured with a tension spring (880) that applies tension so that the front of the roller mounting bar (860) faces downward, and the tension spring (880) is configured to connect the spring hook (851) of the connecting bracket (850) and the spring connecting plate (862) of the roller mounting bar (860).

[0144] Accordingly, the discharge guide means (800) is configured such that the rotary shaft (820) rotates by the operation of the cylinder (830), and when the roller mounting bar (860) of the rotary friction means (840) rotates downward by one-way rotation, the discharge friction roller (870) is brought into close contact with the discharge guide roller (810) and a rotational friction force is applied to the discharge guide roller (810). At this time, the tension spring (880) is configured to apply tension so that the discharge friction roller (870) is brought into close contact with the discharge guide roller (810).

[0145] Hereinafter, the operation of the synthetic resin welding machine of the present invention having the above configuration will be described in detail with reference to the attached drawings.

[0146] Referring to FIGS. 1 to 10, the synthetic resin welding machine (1) of the present invention enables smooth welding in the process of welding normally strong fabrics by overlapping them with hot air and ultrasonic waves, and facilitates entry and exit of the fabrics without slipping, while also enabling uniform welding work accordingly.

[0147] To this end, first, the fabric to be entered for welding work is composed of an upper fabric (10) and a lower fabric (20). At this time, the upper fabric (10) is guided to enter through an upper guide (130), and the lower fabric (20) is guided to enter through a lower guide (600).

[0148] Referring to Fig. 11, first, the upper fabric (10) is placed on the fabric support bar (112) and then inserted into the upper fabric entry groove (213) formed in the upper fabric entry plate (134) and supported on one side.

[0149] And the lower fabric (20) is inserted into the lower fabric entry groove (621) formed in the lower fabric entry plate (620) and supported on one side, so that the upper fabric (10) and the lower fabric (20) form a state in which the vertical welding portions overlap.

[0150] In particular, in the present invention, the upper fabric entry plate (134) is controlled to move left and right by the control block (133), and the lower fabric entry plate (620) is controlled to slide left and right from the rail member (610), so that it can be adjusted according to the degree of overlap of the fabric to be welded or the thickness of the welding roller (210) and the ultrasonic horn (430).

[0151] Afterwards, a welding operation for joining the upper and lower fabrics (10) (20) that are introduced as described above is performed. This is done by rotating the heater rod (310) and lowering the welding roller (210) when the synthetic resin welding machine (1) is in operation, rotating the ultrasonic generator (400), and operating the entry guide means (700) and the discharge guide means (800).

[0152] That is, referring to Fig. 12, the upper and lower fabrics (10) (20) are overlapped and introduced between the welding roller (210) and the ultrasonic horn (430) according to the operation described above.

[0153] Accordingly, the upper and lower fabrics (10)(20) are heated by hot air discharged from the hot air nozzle (311) of the heater rod (310).

[0154] Afterwards, the upper and lower fabrics (10)(20) that are introduced are introduced between the welding roller (210) and the ultrasonic horn (430), and at the same time, they are melted and pressurized and welded by frictional heat caused by ultrasonic vibration energy between the welding roller (210) and the ultrasonic horn (430).

[0155] At this time, in the present invention, the supplied upper and lower fabrics (10) (20) can be entered and discharged by the opposite rotational force of the welding roller (210) and the ultrasonic horn (430), so that welding work of the upper and lower fabrics (10) (20) becomes possible.

[0156] Meanwhile, as described above, when the upper and lower fabrics (10)(20) enter and exit between the welding roller (210) and the ultrasonic horn (430), the welding roller (210) and the ultrasonic horn (430) may not enter and exit properly due to a slipping phenomenon when working on a strong fabric due to the nature of the welding roller (210) and the ultrasonic horn (430) being made of metal.

[0157] Accordingly, in the present invention, friction with the lower fabric (20) is applied by the entry guide means (700), and in the entry guide means (700), the front of the rotary table (720) and the roller mounting bar (740) is rotated upward by the operation of the cylinder (730) to cause the entry friction roller (750) to protrude above the horn extraction hole (111).

[0158] At this time, the protruding entry friction roller (750) initially protrudes above the ultrasonic horn (430), but as the welding roller (210) descends, it presses the entry friction roller (750), so that the circumference of the entry friction roller (750) comes into contact with the lower circumference of the welding roller (210) along with the predetermined insertion operation of the cylinder rod (731) of the cylinder (730).

[0159] Accordingly, when the upper and lower fabrics (10)(20) enter, the rubber entry friction roller (750) applies a predetermined amount of pressure to the bottom surface of the lower fabric (20), so that frictional force is applied to the lower fabric (20), enabling stable entry and rearward discharge of the welded upper and lower fabrics (10)(20).

[0160] In addition, in the present invention, smooth discharge is possible when the upper and lower fabrics (10)(20) are discharged to the rear in a welded state as described above, and this is possible by the discharge guide means (800).

[0161] This means that, with reference to Fig. 13, in the discharge guide means (800), the synthetic resin welding machine (1) is installed with a rotating shaft (820) and a rotating friction means (840) by the operation of the cylinder (830) when the synthetic resin welding machine (1) is in operation.

[0162] That is, when the rotating shaft (820) of the rotating friction means (840) rotates, the connecting bracket (850) and the roller mounting bar (860) rotate downward. At this time, the discharge friction roller (870) comes into contact with the upper portion of the discharge guide roller (810), but comes into contact with tension by the operation of the tension spring (880).

[0163] At this time, the discharge guide roller (810) is configured to have the same rotational force as the ultrasonic generator (400) by the rotational driving means (500), so that when the upper and lower fabrics (10) (20) to be welded and discharged enter between the discharge guide roller (810) and the discharge friction roller (870), the upper and lower fabrics (10) (20) are pulled at the same speed as the welding speed and discharged to the rear.

[0164] In addition, in the present invention, when welding and joining the upper and lower fabrics (10) (20) through the ultrasonic horn (430) and the welding roller (210) as described above, excessive heat may be generated in the ultrasonic horn (430) other than the welding operation due to high-temperature frictional heat caused by ultrasonic vibration energy. In this case, in the present invention, predetermined cooling of the ultrasonic horn (430) is possible by the cooling unit (1000).

[0165] This means that, with reference to FIG. 8, the air supplied to the air supply pipe (1010) moves and is distributed to the air distribution pipe (1020) and is discharged to the side of the ultrasonic horn (430) through the air discharge hole (1021)(1021'), thereby enabling cooling of unnecessary heat generated outside the peripheral surface of the ultrasonic horn (430) required for welding.

[0166] As described above, the synthetic resin welding machine of the present invention enables stable entry and exit by applying rotational frictional force through the entry guide means and the exit guide means when welding a strong fabric, thereby enabling uniform welding during the fabric welding operation.

[0167] The present invention's synthetic resin welding machine is configured with an entry friction roller that rotates up and down on both sides of a lower ultrasonic horn, so that when a rigid fabric is entered, smooth entry is possible through rotational friction between the upper welding roller and the entry friction roller, and thus uniform welding work is possible. In addition, a discharge guide roller and a friction roller are configured at the rear of the work table, so that rotational friction pulling from the rear is applied, thereby providing the effect of guiding the fabric to be discharged smoothly.

Claims

1. A main body (100) having a work table (110) formed on one side of the middle portion with a horn extraction hole (111) and a fabric support bar (112), and a support arm (120) formed on the upper portion that protrudes horizontally toward the upper portion of the work table (110) and has an upper guide (130) formed at the front to guide the entry of the fabric from the upper portion; A lifting platform (200) formed on the above-mentioned support arm (120), which moves up and down by cylinder operation, and which has a welding roller (210) formed at the bottom and made of metal and which rotates; A hot air generating means (300) formed on the above-mentioned elevator (200) and having a heater rod (310) that rotates left and right; An ultrasonic generator (400) formed at the bottom of the work table (110) and composed of an ultrasonic horn (430) and a housing (440) that are pulled out to the top of the work table (110) through a vibrator (410), a booster (420), and a horn extraction hole (111), and that is installed on the bottom of the work table (110) to apply vertical rotational force and generate ultrasonic vibration energy; A rotary driving means (500) formed on the lower surface of the above work table (110) and consisting of a driving motor (510) and a rotary shaft (520), the rotary shaft (520) being connected to the ultrasonic generator (400) by a belt pulley to provide rotary force to the ultrasonic generator (400); A lower guide (600) formed at the upper front of the above work table (110) to guide the entering fabric from below; An entry guide means (700) that operates by entering and exiting through a forming and mixing hole (111) at the bottom of the above work table (110) and provides rotational friction with the welding roller (210) to control the entry and exit of the fabric; and It is configured to include a discharge guide means (800) formed on the work table (110) and the support arm (120) at the rear side of the work table (110) and providing discharge force to the fabric discharged to the rear. The above entry guide means (700) is An installation bracket (710) fixedly formed on the lower part of the workbench (110); First, a pivoting member (720) that is connected to the lower part of the above-mentioned installation bracket (710) by a hinge (721) and rotates; A cylinder (730) formed vertically on the above installation bracket (710) and having a cylinder rod (731) connected to the middle of the above rotation table (720) to rotate the front of the rotation table (720) up and down; A pair of roller mounting bars (740) on both sides, one end of which is connected to both sides of the above-mentioned rotary table (720), the other end of which protrudes toward the above-mentioned horn extraction hole (111), and which rotate up and down by the rotational operation of the above-mentioned rotary table (720); An entry friction roller (750) made of rubber and mounted on each of the roller mounting bars (740); and It is configured to include a stroke adjustment bolt (760) that is vertically screwed to the above installation bracket (710) and is supported on the upper part of the rotation table (720) when the rotation table (720) is operated to adjust the rotation angle. A synthetic resin welding machine characterized in that the rotary table (720) is rotated by the operation of the cylinder (730) so that the entry friction roller (750) protrudes from the upper part of the ultrasonic horn (430) or is drawn in from the lower part.

2. In paragraph 1, The upper guide (130) above is A support member (131) formed by protruding downward and horizontally bending from the front of the above support arm (120); An extension (132) that is fixed by a bolt to the above support (131) with an adjustment block (133) and is formed by protruding downward and being bent horizontally; and It is configured to include an upper end entry member (134) that is bolt-mounted to the lower part of the above extension member (132) and has an upper end entry groove (213) that opens forward, backward, and to one side. The above lower guide (600) is A rail member (610) fixedly installed on the side of the horn extraction hole (111) on the upper part of the work table (110) and having a left-right movement guide groove (611) formed on the upper part; and A synthetic resin welding machine characterized by including a lower fabric entry groove (621) formed on one side in a shape opposite to the upper fabric entry groove (213) and a lower fabric entry plate (620) formed with a plurality of long holes (622) formed on the left and right to enable bolt fixation to a rail member (610) on the upper side, and which is slidably installed on the above moving guide home (611).

3. In paragraph 1, The above discharge guide means (800) is A discharge guide roller (810) having a left-right length and installed at the rear of the work table (110) and connected to the rotation shaft (520) of the rotation drive means (500) by a belt pulley and having the same rotational force; A rotary shaft (820) having a left-right length and being mounted on the support arm (120) via a bracket (821); A cylinder (830) that is vertically mounted at the rear of the above support arm (120) and has a lower end of a cylinder rod (831) that operates downwardly and is connected to the above rotational shaft (820) by a connecting member (832) to control the rotation of the rotational shaft (820); and A synthetic resin welding machine characterized by comprising a plurality of rotating friction means (840) formed at regular intervals on the rotating shaft (820) and configured to provide a discharge force through rotational friction to the fabric and close contact with the discharge guide roller (810) by the rotational operation of the rotating shaft (820).

4. In paragraph 3, Each of the above rotary friction means (840) is A connecting bracket (850) having a rear end fixed to the above-mentioned rotating shaft (820), a spring hook (851) protrudingly formed on the outside, and a mounting bar installation groove (852) formed on the front; A roller mounting bar (860) having a front-back length, a rear end that is pivotally connected to the connecting bracket (850) by an axis (861), a spring connecting plate (862) formed in the middle, and a hooking projection (863) formed at the top to hook onto the inner upper portion of the connecting bracket (850); A discharge friction roller (870) made of rubber and mounted on the tip of the roller mounting bar (860); and It is configured to include a tension spring (880) that connects the spring hook (851) and the spring connecting plate (862) to provide tension to the discharge friction roller (870). A synthetic resin welding machine characterized in that the connecting bracket (850) and the roller mounting bar (860) are rotated by the rotation of the above-mentioned rotating shaft (820) so that the discharge friction roller (870) is brought into contact with or released from the discharge guide roller (810).

5. In paragraph 1, It is configured to further include a cooling unit (1000) capable of cooling the ultrasonic horn (430) of the above ultrasonic generator (400). The above cooling unit (1000) is It is configured to be fixedly formed on the bottom of the above work table, An air supply pipe (1010) capable of supplying air; and A synthetic resin welding machine characterized by comprising an air distribution pipe (1020) connected to an end of the air supply pipe (1010) and spaced apart from one side of an ultrasonic horn (430), and having a plurality of air discharge holes (1021)(1021') formed therein to discharge air to one side of an ultrasonic horn (330).

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