CN106758122B - Composite cloth transverse cutting device - Google Patents
Composite cloth transverse cutting device Download PDFInfo
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- CN106758122B CN106758122B CN201611267383.4A CN201611267383A CN106758122B CN 106758122 B CN106758122 B CN 106758122B CN 201611267383 A CN201611267383 A CN 201611267383A CN 106758122 B CN106758122 B CN 106758122B
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- motor
- linear guide
- cloth
- connecting plate
- fixing seat
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06H—MARKING, INSPECTING, SEAMING OR SEVERING TEXTILE MATERIALS
- D06H7/00—Apparatus or processes for cutting, or otherwise severing, specially adapted for the cutting, or otherwise severing, of textile materials
- D06H7/02—Apparatus or processes for cutting, or otherwise severing, specially adapted for the cutting, or otherwise severing, of textile materials transversely
Abstract
The invention relates to a composite cloth transverse cutting device, which comprises a servo motor, a synchronous wheel, a synchronous belt, a connecting plate, a high-speed stepping motor, an integrated fly cutter, a cutter fixing seat, a linear guide rail, a supporting base and a motor closed-loop control device, wherein the synchronous wheel is connected to a motor output shaft of the servo motor in a transmission manner, one end of the connecting plate is fixedly connected with the synchronous belt, the other end of the connecting plate is connected with the cutter fixing seat, the integrated fly cutter is connected to a motor output shaft of the high-speed stepping motor in a transmission manner, the high-speed stepping motor is fixedly arranged on the cutter fixing seat, the bottom of the cutter fixing seat is movably arranged on the linear guide rail through a roller, and the linear guide rail is arranged at the top of the supporting base; the servo motor is electrically connected with the motor closed-loop control device. The transverse cutting device is high in cutting efficiency, can completely meet the speed of the existing ultrasonic composite cloth, perfectly matches the production beat, and greatly improves the production efficiency.
Description
Technical Field
The invention relates to a cloth transverse cutting device, in particular to a transverse cutting device for composite cloth, and particularly relates to a device suitable for transverse cutting of ultrasonic composite cloth at fixed length.
Background
In the textile and clothing industry, ultrasonic composite cloth is a novel processing mode, and because quilting by using needles and threads is not needed, a large amount of cost is saved, and meanwhile, the production efficiency is greatly improved, so that the ultrasonic composite cloth is rapidly developed. Just because the processing speed of the ultrasonic composite cloth is high and can reach 30 meters per minute, the requirement of transverse cutting is more than 10 times of reciprocating per minute, the traditional transverse cutting mode can reach 5 times per minute at most, the speed and the beat can not be met, and the development of the ultrasonic composite technology in the clothing industry is restricted. Therefore, there is a strong need for improvement of the existing transverse cutting device to adapt to the processing technology of the ultrasonic composite cloth.
Disclosure of Invention
The invention aims to provide a composite cloth transverse cutting device which is ingenious in overall structural design and convenient to operate, and the device can reciprocate 12-15 times per minute, so that the production rate of ultrasonic composite cloth is greatly improved.
In order to achieve the purpose, the technical scheme adopted by the invention is that the composite cloth transverse cutting device comprises a servo motor, a synchronous wheel, a synchronous belt, a connecting plate, a high-speed stepping motor, an integrated fly cutter, a cutter fixing seat, a linear guide rail, a supporting base and a motor closed-loop control device, wherein the synchronous wheel is connected to a motor output shaft of the servo motor in a transmission manner, the synchronous belt is sleeved in a belt groove in an outer ring of the synchronous wheel, one end of the connecting plate is fixedly connected with the synchronous belt, the other end of the connecting plate is connected with the cutter fixing seat, the integrated fly cutter is connected to a motor output shaft of the high-speed stepping motor in a transmission manner, the high-speed stepping motor is fixedly arranged on the cutter fixing seat, the bottom of the cutter fixing seat is movably arranged on the linear guide rail through rollers, and the linear guide rail is arranged at the top of the supporting base; and the servo motor is electrically connected with the motor closed-loop control device.
As an improvement of the invention, the motor closed-loop control device comprises a motor driver, a PLC (programmable logic controller) and an encoder, wherein the servo motor is electrically connected with the encoder, the motor driver is electrically connected with the servo motor, and both the encoder and the motor driver are electrically connected with the PLC.
As an improvement of the invention, the motor closed-loop control device further comprises a frequency converter, wherein the input end of the frequency converter is connected with the PLC, and the output end of the frequency converter is connected with the motor driver.
As an improvement of the invention, a cloth pressing device is arranged on the outer side of the cutter head of the integrated fly cutter, the cloth pressing device comprises a cloth feeding roller, a cloth pressing wheel and a clamping cylinder, the cloth pressing wheel is fixedly arranged at the bottom of the clamping cylinder, and the cloth pressing wheel is positioned right above the cloth feeding roller.
As an improvement of the invention, one end of the cutter fixing seat is provided with a U-shaped groove, the end of the connecting plate is inserted into the U-shaped groove, threaded holes are respectively formed in the U-shaped groove and the connecting plate, and the connecting plate is fixedly connected in the U-shaped groove by a fastening bolt penetrating through the threaded holes.
As an improvement of the invention, a supporting plate is welded at the bottom of the cutter fixing seat, a plurality of rollers are arranged at the lower part of the supporting plate, and the rollers are fixedly connected with the supporting plate through roller supporting seats.
As an improvement of the invention, the integrated fly cutter comprises a circular main blade and a bed knife, wherein the cutting edge of the main blade is meshed with the cutting edge of the bed knife, the main blade is sleeved on a motor output shaft of a high-speed stepping motor, the bed knife is fixedly arranged on an elastic meshing device, the elastic meshing device comprises a sleeving ring, a supporting column, a spring compression piece and a bed knife mounting seat, the sleeving ring is sleeved on the motor output shaft of the high-speed stepping motor, the supporting column is vertically arranged on the side end face of the sleeving ring, one end of the spring compression piece is arranged on the supporting column, the other end of the spring compression piece is fixedly arranged on the bed knife mounting seat, and the bed knife is fixedly arranged on the bed knife mounting seat.
As an improvement of the invention, the rotating speed of the high-speed stepping motor is 8000r/min (revolution/minute), the rated power is 180W, the rated voltage is 220V, the working frequency is 50HZ, and the volume is 80 multiplied by 120 mm.
As an improvement of the invention, the linear guide rail is welded on the top of the support base, a linear guide rail groove is formed in the middle of the linear guide rail, the roller is clamped in the linear guide rail groove, and the roller can roll back and forth in the linear guide rail groove.
As an improvement of the invention, the support base is made of galvanized square tubes, and has the advantages of simple manufacture and stable and reliable support effect.
Compared with the prior art, the transverse cutting device provided by the invention has the advantages that the overall structural design is ingenious, the disassembly, assembly, maintenance and replacement are convenient, the cost is lower, the cutting efficiency of the composite cloth is high, the transverse cutting tool can accurately move at high speed through the matching use of the servo motor and the motor closed-loop control device, the impact generated during starting/stopping is avoided, and the linear reciprocating motion frequency of the transverse cutting tool on the linear guide rail per minute can reach 12-15 times, so that the transverse cutting efficiency and the precision of the composite cloth can be effectively improved; in addition, when the composite cloth is transversely cut, the cloth pressing device arranged on the outer side of the tool bit of the integrated fly cutter drives the cloth pressing wheel to press down through the clamping cylinder so as to press the composite cloth on the cloth feeding roller, so that the composite cloth is not deviated when the transverse cutting tool cuts the composite cloth, and the cutting size is ensured to meet the requirements of the production process. In addition, integrative fly sword adopts the cutting structure that circular main blade and the bed knife that adopts the elasticity interlock device combined together, cuts compound cloth through the main blade cutting edge of mutual interlock and bed knife cutting edge accurate, high-speed to the bed knife can make the cutting edge of bed knife keep closely the interlock with the cutting edge of main blade all the time through the elasticity interlock device, thereby no matter compound cloth thickness can be by sharp cutting and complete separation.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
In the figure: 1-servo motor, 2-synchronous wheel, 3-synchronous belt, 4-connecting plate, 5-high speed stepping motor, 6-cutter fixing seat, 7-linear guide rail, 8-supporting base, 9-motor output shaft, 10-integrated fly cutter, 11-U-shaped groove, 12-fastening bolt, 13-supporting plate, 14-linear guide rail groove, 15-cloth feeding roller, 16-cloth pressing wheel and 17-clamping cylinder.
Detailed Description
For a better understanding and appreciation of the invention, it is further described and illustrated below in connection with the accompanying drawings.
Example 1: as shown in fig. 1, a composite cloth transverse cutting device comprises a servo motor 1, a synchronous wheel 2, a synchronous belt 3, a connecting plate 4, a high-speed stepping motor 5, an integrated fly cutter 10, a cutter fixing seat 6, a linear guide rail 7, a supporting base 8 and a motor closed-loop control device. 2 transmission of synchronizing wheel are connected on servo motor 1's motor output shaft 9, drive synchronizing wheel 2 through servo motor 1 and rotate, 3 covers of hold-in range are established in the trough of belt of 2 outer lanes of synchronizing wheel, and synchronizing wheel 2 drives hold-in range 3 and converts rotary motion into linear motion, the one end and the 3 fixed connection of hold-in range of connecting plate 4, other end connection cutter fixing base 6 are connected hold-in range 3 and cutter fixing base 6 through connecting plate 4 to can be under the 3 pivoted circumstances of hold-in range, carry out straight reciprocating motion together through connecting plate 4 drive cutter fixing base 6 and all parts that set up on cutter fixing base 6. The integrated fly cutter 10 is connected to the motor output shaft of the high-speed stepping motor 5 in a transmission manner, and the integrated fly cutter 10 is driven by the high-speed stepping motor 5 to rotate at a high speed so as to perform efficient transverse cutting on the composite cloth. The high-speed stepping motor 5 is fixedly arranged on the cutter fixing seat 6, the bottom of the cutter fixing seat 6 is movably arranged on the linear guide rail 7 through the idler wheel, the linear guide rail 7 is arranged at the top of the supporting base 8, and the supporting base 8 is used for fixing and supporting the whole transverse cutting device. The servo motor 1 is electrically connected with the motor closed-loop control device, the servo motor 1 is used as a power source of transverse movement of the transverse cutting tool (namely the integral fly cutter 10), the synchronous belt 3 is used as a transmission carrier, and closed-loop control is carried out on the servo motor 1 through the motor closed-loop control device, so that the transverse cutting tool is guaranteed to move accurately at a high speed, and impact generated during starting/stopping is avoided. And the whole transverse cutting device is ingenious and practical in structural design, and the times of linear reciprocating motion of the transverse cutting tool on the linear guide rail 7 per minute can reach 12-15 times under the power driving of the servo motor 1, so that the transverse cutting efficiency and the precision of the composite cloth can be effectively improved.
Example 2: as shown in fig. 1, as an improvement of the present invention, the motor closed-loop control device includes a motor driver, a PLC controller, and an encoder, the servo motor 1 is electrically connected to the encoder, the motor driver is electrically connected to the servo motor 1, and both the encoder and the motor driver are electrically connected to the PLC controller. The speed and the position of the servo motor 1 are detected in real time by the encoder, the detected data are fed back to the PLC, the PLC makes a decision according to the feedback information and outputs a control instruction to the motor driver, and the motor driver drives and adjusts the running state of the servo motor 1. The rest of the structure and advantages are exactly the same as those of embodiment 1.
Example 3: as shown in fig. 1, as an improvement of the present invention, the closed-loop control device for a motor further includes a frequency converter, an input end of the frequency converter is connected to the PLC controller, and an output end of the frequency converter is connected to the motor driver. The motor driver is adjusted by outputting PWM pulse signals through the frequency converter, and the rotating speed and the stop position of the servo motor 1 are controlled by the motor driver, so that the stepless speed regulation and the accurate positioning of the servo motor 1 can be realized through the frequency converter, and the reciprocating motion stability of the transverse cutting tool is effectively ensured. The rest of the structure and advantages are exactly the same as those of embodiment 2.
Example 4: as shown in fig. 1, as an improvement of the present invention, a cloth pressing device is provided outside a cutter head of the integrated fly cutter 10, the cloth pressing device includes a cloth feeding roller 15, a cloth pressing wheel 16 and a clamping cylinder 17, the cloth pressing wheel 16 is fixedly installed at the bottom of the clamping cylinder 17, and the cloth pressing wheel 16 is located right above the cloth feeding roller 15. When the composite cloth is transversely cut, the clamping cylinder 17 drives the cloth pressing wheel 16 to press downwards to compress the composite cloth on the cloth feeding roller 15, so that the composite cloth does not deviate in the cutting process of the transverse cutting tool on the composite cloth, and the cutting size is ensured to meet the requirements of the production process. The rest of the structure and advantages are exactly the same as those of embodiment 3.
Example 5: as shown in fig. 1, as an improvement of the present invention, one end of the tool fixing seat 6 is provided with a U-shaped groove 11, the end of the connecting plate 4 is inserted into the U-shaped groove 11, both the U-shaped groove 11 and the connecting plate 4 are provided with threaded holes, and the connecting plate 4 is fixedly connected in the U-shaped groove 11 by passing a fastening bolt 12 through the threaded holes. The connection between the cutter fixing seat 6 and the connecting plate 4 is firm and firm, and the service life is long. The rest of the structure and advantages are exactly the same as those of embodiment 4.
Example 6: as shown in fig. 1, as a modification of the present invention, a supporting plate 13 is welded at the bottom of the tool fixing seat 6, and a plurality of rollers are disposed at the lower portion of the supporting plate 13 and fixedly connected to the supporting plate 13 through roller supporting seats. The roller supporting seats are uniformly distributed at the lower part of the supporting plate 13, and in order to form a stable and reliable supporting function for the cutter fixing seat 6, 4-8 roller supporting seats are generally uniformly arranged at the lower part of the supporting plate 13, and the rollers are arranged on the roller supporting seats. The rest of the structure and advantages are exactly the same as those of embodiment 5.
Example 7: as shown in fig. 1, as an improvement of the present invention, the integrated fly cutter 10 includes a circular main blade and a bed knife, a cutting edge of the main blade is engaged with a cutting edge of the bed knife, the composite fabric is precisely cut at a high speed by the engagement of the cutting edge of the main blade and the cutting edge of the bed knife, the main blade is sleeved on a motor output shaft of the high-speed stepping motor 5, the bed knife is fixedly disposed on an elastic engagement device, the elastic engagement device includes a sleeve ring, a support pillar, a spring compression member and a bed knife mounting seat, the sleeve ring is sleeved on the motor output shaft of the high-speed stepping motor 5, the support pillar is vertically disposed on a side end face of the sleeve ring, one end of the spring compression member is disposed on the support pillar, the other end is fixedly mounted on the bed knife mounting seat, and the bed knife is fixedly mounted on the bed knife mounting seat. The bottom knife can keep the cutting edge of the bottom knife tightly engaged with the cutting edge of the main blade all the time through the elastic engaging device, so that the composite cloth can be cut sharply and separated completely no matter the thickness of the composite cloth. The rest of the structure and advantages are exactly the same as those of embodiment 6.
Example 8: as shown in figure 1, as a modification of the present invention, the high speed stepper motor 5 has a rotation speed of 8000r/min, a rated power of 180W, a rated voltage of 220V, a working frequency of 50HZ, a volume of 80X 120mm and a weight of 5 KG. By adopting the small-sized high-speed stepping motor 5, the movement inertia can be greatly reduced, and the integral fly cutter 10 arranged on the high-speed stepping motor 5 can rotate at high speed to ensure the cutting effect of the composite cloth. The rest of the structure and advantages are exactly the same as those of embodiment 7.
Example 9: as shown in fig. 1, as an improvement of the present invention, the linear guide 7 is welded on the top of the support base 8, a linear guide groove 14 is formed in the middle of the linear guide 7, the roller is clamped in the linear guide groove 14, and the roller can roll back and forth in the linear guide groove 14. The cutter fixing seat 6 and related components arranged at the upper part of the linear guide rail 7 are driven to do reciprocating linear motion by the rolling of the roller wheel in the linear guide rail groove 14, and the rest of the structure and the advantages are completely the same as those of the embodiment 8.
Example 10: as shown in fig. 1, as an improvement of the present invention, the supporting base 8 is made of a 100 × 100mm galvanized square tube, and is simple to manufacture and has a stable and reliable supporting function. The rest of the structure and advantages are exactly the same as those of embodiment 9.
The invention can also combine at least one of the technical characteristics described in examples 2, 3, 4, 5, 6, 7, 8, 9 and 10 with example 1 to form a new implementation mode.
It should be noted that the above-mentioned embodiments are not intended to limit the scope of the present invention, and all equivalent modifications or substitutions based on the above-mentioned technical solutions are included in the scope of the present invention. In the claims, the word "comprising" does not exclude the presence of elements not listed in a claim.
The technical means disclosed in the invention scheme are not limited to the technical means disclosed in the above embodiments, but also include the technical scheme formed by any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and such improvements and modifications are also considered to be within the scope of the present invention.
Claims (7)
1. The utility model provides a compound cloth crosscut device which characterized in that: the integrated flying knife device comprises a servo motor, a synchronous wheel, a synchronous belt, a connecting plate, a high-speed stepping motor, an integrated flying knife, a knife fixing seat, a linear guide rail, a supporting base and a motor closed-loop control device, wherein the synchronous wheel is connected to a motor output shaft of the servo motor in a transmission manner, the synchronous belt is sleeved in a belt groove in the outer ring of the synchronous wheel, one end of the connecting plate is fixedly connected with the synchronous belt, the other end of the connecting plate is connected with the knife fixing seat, the integrated flying knife is connected to a motor output shaft of the high-speed stepping motor in a transmission manner, the high-speed stepping motor is fixedly arranged on the knife fixing seat, the bottom of the knife fixing seat is movably arranged on the linear guide rail through a roller, and the linear guide rail is arranged at the top of the supporting base; the integrated fly cutter comprises a circular main blade and a bed knife, wherein the cutting edge of the main blade is meshed with the cutting edge of the bed knife, the main blade is sleeved on a motor output shaft of a high-speed stepping motor, the bed knife is fixedly arranged on an elastic meshing device, the elastic meshing device comprises a sleeving ring, a supporting column, a spring compression piece and a bed knife mounting seat, the sleeving ring is sleeved on the motor output shaft of the high-speed stepping motor, the supporting column is vertically arranged on the side end face of the sleeving ring, one end of the spring compression piece is arranged on the supporting column, the other end of the spring compression piece is fixedly arranged on the bed knife mounting seat, and the bed knife is fixedly arranged on the bed knife mounting seat; the servo motor is electrically connected with the motor closed-loop control device; a cloth pressing device is arranged on the outer side of the cutter head of the integrated fly cutter, the cloth pressing device comprises a cloth feeding roller, a cloth pressing wheel and a clamping cylinder, the cloth pressing wheel is fixedly arranged at the bottom of the clamping cylinder, and the cloth pressing wheel is positioned right above the cloth feeding roller; a U-shaped groove is formed in one end portion of the cutter fixing seat, the end portion of the connecting plate is inserted into the U-shaped groove, threaded holes are formed in the U-shaped groove and the connecting plate, and fastening bolts penetrate through the threaded holes to fixedly connect the connecting plate in the U-shaped groove.
2. The composite cloth crosscutting apparatus of claim 1, wherein the motor closed-loop control device comprises a motor driver, a PLC controller, and an encoder, the servo motor is electrically connected to the encoder, the motor driver is electrically connected to the servo motor, and both the encoder and the motor driver are electrically connected to the PLC controller.
3. The composite cloth crosscutting apparatus of claim 2, wherein the motor closed-loop control apparatus further comprises a frequency converter, an input end of the frequency converter is connected to the PLC controller, and an output end of the frequency converter is connected to the motor driver.
4. The composite cloth crosscutting apparatus of claim 1, wherein a supporting plate is welded to a bottom of the cutter holder, and a plurality of rollers are provided on a lower portion of the supporting plate, and the rollers are fixedly connected to the supporting plate through roller supporting seats.
5. The composite cloth crosscutting apparatus of claim 1, wherein the high speed stepping motor has a rotation speed of 8000r/min, a rated power of 180W, a rated voltage of 220V, a working frequency of 50HZ, and a volume of 80 x 120 mm.
6. The composite cloth transverse cutting device according to claim 1, wherein the linear guide is welded on the top of the support base, a linear guide groove is formed in the middle of the linear guide, the roller is clamped in the linear guide groove, and the roller can roll back and forth in the linear guide groove.
7. The composite cloth crosscutting apparatus of claim 6, wherein the support base is fabricated from galvanized square tubing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611267383.4A CN106758122B (en) | 2016-12-31 | 2016-12-31 | Composite cloth transverse cutting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611267383.4A CN106758122B (en) | 2016-12-31 | 2016-12-31 | Composite cloth transverse cutting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106758122A CN106758122A (en) | 2017-05-31 |
| CN106758122B true CN106758122B (en) | 2022-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611267383.4A Active CN106758122B (en) | 2016-12-31 | 2016-12-31 | Composite cloth transverse cutting device |
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| CN (1) | CN106758122B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107119440A (en) * | 2017-06-05 | 2017-09-01 | 南通凯迪自动机械有限公司 | Anti- skew of weft guillotine |
| CN107904920A (en) * | 2017-09-19 | 2018-04-13 | 盐城精通源机械有限公司 | Transverse direction cutting mechanism during fixed length for ultrasonic wave composite material-feeding |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09103991A (en) * | 1995-10-09 | 1997-04-22 | Shima Seiki Mfg Ltd | Method for controlling cutting |
| CN203112224U (en) * | 2012-10-29 | 2013-08-07 | 南京理工大学常熟研究院有限公司 | Film cutting device |
| CN203600670U (en) * | 2013-11-30 | 2014-05-21 | 无锡鼎茂机械制造有限公司 | Servo fly-cutter cutting-off device of bag making machine |
| CN105484008A (en) * | 2016-01-21 | 2016-04-13 | 泉州市中缝针车城有限责任公司 | Quantitative cloth cutting machine |
| KR101654728B1 (en) * | 2016-02-18 | 2016-09-06 | (주)월드브라인드 | a Cutting Device For Cloth |
| CN206396527U (en) * | 2016-12-31 | 2017-08-11 | 盐城精通源机械有限公司 | Composite material-feeding infeed set-up |
-
2016
- 2016-12-31 CN CN201611267383.4A patent/CN106758122B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09103991A (en) * | 1995-10-09 | 1997-04-22 | Shima Seiki Mfg Ltd | Method for controlling cutting |
| CN203112224U (en) * | 2012-10-29 | 2013-08-07 | 南京理工大学常熟研究院有限公司 | Film cutting device |
| CN203600670U (en) * | 2013-11-30 | 2014-05-21 | 无锡鼎茂机械制造有限公司 | Servo fly-cutter cutting-off device of bag making machine |
| CN105484008A (en) * | 2016-01-21 | 2016-04-13 | 泉州市中缝针车城有限责任公司 | Quantitative cloth cutting machine |
| KR101654728B1 (en) * | 2016-02-18 | 2016-09-06 | (주)월드브라인드 | a Cutting Device For Cloth |
| CN206396527U (en) * | 2016-12-31 | 2017-08-11 | 盐城精通源机械有限公司 | Composite material-feeding infeed set-up |
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| CN106758122A (en) | 2017-05-31 |
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Effective date of registration: 20220704 Address after: 224000 Building 2, Fugang Industrial Zone, Dagang Town, Yandu District, Yancheng City, Jiangsu Province Patentee after: Jiangsu Yide Intelligent Technology Co.,Ltd. Address before: 2242 Industrial Park, Fugang Town, Jiangsu Province Patentee before: YANCHENG PROFICIENT SOURCE MACHINERY Co.,Ltd. |
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