Linear ultrasonic welding machine

Abstract

The utility model relates to the technical field of ultrasonic welding machines, and discloses a linear ultrasonic welding machine which comprises an outer shell and a welding seat mounting plate fixedly mounted on the side face of the outer shell, the linear ultrasonic welding machine is driven by a built-in air cylinder, a sliding mechanism ascends and descends up and down through a single rail and double sliding blocks, and the descending height is adjustable. An output shaft of the built-in cylinder is directly connected with a pull pressure sensor, so that the pressure change can be monitored in real time in the moving process of the built-in cylinder; the output tail end of the built-in air cylinder is connected with a connecting block of a tension and pressure sensor through a sliding groove in a matched mode, and the eccentricity problem of connecting components can be effectively eliminated; when a built-in air cylinder acts downwards, a cylinder of the lower limiting adjusting mechanism descends, an internal structure can trigger a proximity switch and detect whether an ultrasonic welding head is in place or not, a precise grating ruler is arranged on a rack, descending displacement can be measured in real time, and a high-precision pull pressure sensor is arranged to accurately measure pressing and welding pressure.

Description

TECHNICAL FIELD

[0001] The utility model relates to ultrasonic welding machine technical field, concretely is a linear ultrasonic welding machine. BACKGROUND

[0002] Ultrasonic welding machine is a kind of equipment using ultrasonic energy to weld, mainly used for the welding of plastic products. Its working principle is that high-frequency vibration (usually 20-40kHz) makes the molecular friction of welding contact surface heat, so that the material melts and is naturally bonded, and ultrasonic welding machine converts AC (190-240V, 50 / 60Hz) into high-frequency high-voltage signal through power supply box, and then converts these signals into high-frequency mechanical vibration through transducer system. These vibrations are applied to plastic products, which makes the two parts of the plastic product produce high-speed friction, and the temperature rises rapidly. When the temperature reaches the melting point of plastic, the plastic interface will melt rapidly. At the same time, the product is cooled and shaped under certain pressure, so as to achieve perfect welding effect.

[0003] At present, the common sleeve clamping amplitude modulator is usually cut into a half-ring structure, and the sleeve is clamped by locking the clamping ring. During the process of screw locking, the sleeve often deforms due to this process. The conventional base and welding seat are fixedly connected, and cannot be adjusted in height in actual use, so it cannot be applied to different welding requirements.

[0004] Therefore, we propose a linear ultrasonic welding machine to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a linear ultrasonic welding machine to solve the problem of the common sleeve clamping amplitude modulator at present, which is usually cut into a half-ring structure, and the sleeve is clamped by locking the clamping ring. During the process of screw locking, the sleeve often deforms due to this process. The conventional base and welding seat are fixedly connected, and cannot be adjusted in height in actual use, so it cannot be applied to different welding requirements.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: a linear ultrasonic welding machine, comprising an external shell and a welding seat mounting plate fixedly installed on the side surface of the external shell, an ultrasonic welding seat is fixedly installed on the welding seat mounting plate, a lower height indicating needle is fixedly installed on the surface of the welding seat mounting plate, an ultrasonic welding head and an ultrasonic transducer are movably arranged on the two sides in the external shell respectively, a lower limit adjusting mechanism is fixedly arranged at the upper end of the external shell, a touch screen is fixedly installed on the side surface of the external shell, and a pneumatic control box is arranged on the side edge of the external shell.

[0007] Preferably, the lower end of the internal shell is fixedly installed with an internal cylinder, the upper end of the internal cylinder is fixedly installed with a tension and pressure sensor, the internal shell is internally provided with a sliding groove, and the tension and pressure sensor is slidingly connected in the sliding groove.

[0008] Preferably, the internal shell is internally provided with a clamping sliding device, the upper end of the clamping sliding device clamps a clamping part, and the internal shell is fixedly installed with a proximity switch, which is arranged on the movement path of the lower limit adjusting mechanism.

[0009] Preferably, the internal shell is fixedly installed with a grating ruler, and the grating ruler is arranged on the side surface of the lower limit adjusting mechanism.

[0010] Preferably, the side surface of the ultrasonic welding head is fixedly installed with a steel sleeve front lock, one end of the steel sleeve front lock is fixedly installed with an ultrasonic steel sleeve, one end of the ultrasonic steel sleeve is fixedly installed with a steel sleeve rear lock, one end of the ultrasonic steel sleeve is fixedly installed with an amplitude modulator, and the ultrasonic transducer is fixedly arranged at one end of the amplitude modulator.

[0011] Preferably, the internal shell is internally provided with an internal air pressure display table and a hidden air cylinder.

[0012] Compared with the prior art, the linear ultrasonic welding machine has the beneficial effects that:

[0013] The linear ultrasonic welding machine adopts internal cylinder driving, the sliding mechanism adopts single-rail double-sliding-block up-down lifting, the lowering height is adjustable, the internal cylinder output shaft is directly connected with the tension and pressure sensor, the pressure change can be monitored in real time during the movement of the internal cylinder, the connection block of the tension and pressure sensor is connected through the sliding groove at the output end of the internal cylinder, the eccentric problem of the connection component can be effectively eliminated, when the internal cylinder acts downward, the lower limit adjusting mechanism cylinder descends, the internal structure can trigger the proximity switch, whether the ultrasonic welding head is in place can be detected, the rack is provided with a precision grating ruler, the lowering displacement can be measured in real time, a high-precision tension and pressure sensor is configured to accurately measure the pressure of the downward pressing and welding. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a whole three-dimensional structure schematic view of the utility model;

[0015] Figure 2 It is a three-dimensional structure schematic view of the ultrasonic welding head system of the utility model;

[0016] Figure 3 It is a three-dimensional structure schematic view of the internal shell of the utility model.

[0017] In the figure: 1, external shell; 11, built-in air cylinder; 12, pull pressure sensor; 13, sliding groove; 14, clamping sliding device; 15, clamping part; 16, proximity switch; 17, grating ruler; 2, welding seat mounting plate; 3, ultrasonic welding seat; 4, falling height indicating needle; 5, ultrasonic welding head; 51, steel sleeve front lock; 52, steel sleeve rear lock; 53, amplitude modulator; 54, ultrasonic steel sleeve; 6, ultrasonic transducer; 7, lower limit adjustment mechanism; 8, touch screen; 9, air control box. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0019] Embodiment: please refer to Figure 1 Figure 3 A linear ultrasonic welding machine, comprising an external shell 1 and a welding seat mounting plate 2 fixedly installed on the side surface of the external shell 1, wherein the welding seat mounting plate 2 is fixedly installed with an ultrasonic welding seat 3, and the surface of the welding seat mounting plate 2 is fixedly installed with a falling height indicating needle 4; the internal two sides of the external shell 1 are movably provided with an ultrasonic welding head 5 and an ultrasonic transducer 6 respectively; the upper end of the external shell 1 is fixedly provided with a lower limit adjustment mechanism 7; the side surface of the external shell 1 is fixedly installed with a touch screen 8; and the side edge of the external shell 1 is provided with an air control box 9.

[0020] The internal lower end of the external shell 1 is fixedly installed with a built-in air cylinder 11, and the upper end of the built-in air cylinder 11 is fixedly installed with a pull pressure sensor 12; the internal part of the external shell 1 is provided with a sliding groove 13, and the pull pressure sensor 12 is slidably connected in the sliding groove 13; and the design of the sliding groove 13 can prevent the sliding mechanical wear caused by left and right eccentricity.

[0021] The internal part of the external shell 1 is provided with a clamping sliding device 14, and the upper end of the clamping sliding device 14 clamps a clamping part 15; the internal part of the external shell 1 is fixedly installed with a proximity switch 16, and the proximity switch 16 is arranged on the movement path of the lower limit adjustment mechanism 7.

[0022] The internal part of the external shell 1 is fixedly installed with a grating ruler 17, and the grating ruler 17 is arranged on the side surface of the lower limit adjustment mechanism 7.

[0023] ​The side of the ultrasonic welding head 5 is fixedly provided with a steel sleeve front lock 51, one end of the steel sleeve front lock 51 is fixedly provided with an ultrasonic steel sleeve 54, one end of the ultrasonic steel sleeve 54 is fixedly provided with a steel sleeve rear lock 52, one end of the ultrasonic steel sleeve 54 is fixedly provided with an amplitude modulator 53, and the ultrasonic transducer 6 is fixedly arranged at one end of the amplitude modulator 53. The ultrasonic welding head 5 and the amplitude modulator 53 are connected in the ultrasonic steel sleeve 54, which can ensure the concentricity. The steel sleeve rear lock 52 of the rear end of the amplitude modulator 53 is locked by putting the sleeve into the upper screw rod, the ultrasonic welding head 5 is tightened, and then the amplitude modulator 53 is locked after the steel sleeve front lock 51 is tightened.

[0024] The inside of the air control box 9 is provided with a built-in air pressure display table and a hidden air cylinder, and the air control box 9 is detachable and modularized.

[0025] In the embodiment, the welding machine system is composed of a hardware cylinder driving mechanism, an air control system and an ultrasonic welding system.

[0026] Ultrasonic process welding principle:

[0027] The ultrasonic generator converts industrial electricity (220V or 380V) into high-frequency high-voltage alternating current (for example, 15KHz, 20KHZ, 35Khz, 40KHZ), which is transmitted to the transducer and converted into mechanical vibration, i.e. ultrasonic vibration, through the internal piezoelectric ceramic sheet.

[0028] The ultrasonic vibration is transmitted to the workpiece through the welding head nozzle, and under the action of the vertical welding pressure, metal connection is formed at the weld interface.

[0029] Welding rack:

[0030] The built-in cylinder 11 is used for driving, the sliding mechanism uses a single track and double sliding blocks for up-down lifting, the lowering height is adjustable, the output shaft of the built-in cylinder 11 is directly connected to the pull-pressure sensor 12, the pressure change can be monitored at any time during the movement of the built-in cylinder 11, the built-in cylinder 11 output end is connected to the connecting block of the pull-pressure sensor 12 through the sliding groove 13, which can effectively eliminate the eccentricity problem of the connecting component, when the built-in cylinder 11 acts downward, the lower limit adjustment mechanism 7 cylinder descends, the internal structure can trigger the proximity switch 16 to detect whether the ultrasonic welding head 5 is in place, and the grating ruler 17 detects the distance of downward movement at any time.

[0031] The rack is configured with a precision grating ruler 17 to measure the downward displacement at any time, and a high-precision pull-pressure sensor 12 is configured to accurately measure the pressure of downward pressing and welding.

[0032] The contents not described in detail in the specification belong to the prior art known to those skilled in the art.

[0033] Although the utility model has been explained in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A linear ultrasonic welding machine comprising an outer housing (1) and a welding station mounting plate (2) fixedly mounted on a side of said outer housing (1), characterized in that: The welding seat mounting plate (2) is fixedly installed with an ultrasonic welding seat (3), the surface of the welding seat mounting plate (2) is fixedly installed with a descending height indicating needle (4), the inside of the external shell (1) is movably provided with an ultrasonic welding head (5) and an ultrasonic transducer (6) on both sides respectively, the upper end of the external shell (1) is fixedly provided with a lower limit adjustment mechanism (7), the side of the external shell (1) is fixedly installed with a touch screen (8), and the side of the external shell (1) is provided with a pneumatic box (9).

2. A linear ultrasonic welder as defined in claim 1, wherein: The inside of the external shell (1) is fixedly installed with an internal pneumatic cylinder (11) at the lower end, the upper end of the internal pneumatic cylinder (11) is fixedly installed with a tension and compression force sensor (12), the inside of the external shell (1) is provided with a sliding groove (13), and the tension and compression force sensor (12) is slidably connected in the sliding groove (13).

3. A linear ultrasonic welder as defined in claim 2, wherein: The inside of the external shell (1) is provided with a clamping sliding device (14), the upper end of the clamping sliding device (14) clamps a clamping part (15), the inside of the external shell (1) is fixedly installed with a proximity switch (16), and the proximity switch (16) is arranged on the movement path of the lower limit adjustment mechanism (7).

4. A linear ultrasonic welder as claimed in claim 3, wherein: The inside of the external shell (1) is fixedly installed with a grating ruler (17), and the grating ruler (17) is arranged on the side of the lower limit adjustment mechanism (7).

5. A linear ultrasonic welder as defined in claim 1, wherein: The side of the ultrasonic welding head (5) is fixedly installed with a steel sleeve front lock (51), one end of the steel sleeve front lock (51) is fixedly installed with an ultrasonic steel sleeve (54), one end of the ultrasonic steel sleeve (54) is fixedly installed with a steel sleeve rear lock (52), one end of the ultrasonic steel sleeve (54) is fixedly installed with an amplitude modulator (53), and the ultrasonic transducer (6) is fixedly arranged at one end of the amplitude modulator (53).

6. A linear ultrasonic welder as defined in claim 1, wherein: The inside of the pneumatic box (9) is provided with an internal air pressure display table and a hidden pneumatic cylinder.

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