CN209805077U - Pin inserting machine - Google Patents

Pin inserting machine Download PDF

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Publication number
CN209805077U
CN209805077U CN201920681931.0U CN201920681931U CN209805077U CN 209805077 U CN209805077 U CN 209805077U CN 201920681931 U CN201920681931 U CN 201920681931U CN 209805077 U CN209805077 U CN 209805077U
Authority
CN
China
Prior art keywords
blind plug
blind
ecu base
conveying line
pushing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201920681931.0U
Other languages
Chinese (zh)
Inventor
张建宏
张兆东
周益军
朱亚东
张翔
张�浩
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yangzhou Polytechnic College Yangzhou Radio and TV University
Original Assignee
Yangzhou Polytechnic College Yangzhou Radio and TV University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yangzhou Polytechnic College Yangzhou Radio and TV University filed Critical Yangzhou Polytechnic College Yangzhou Radio and TV University
Priority to CN201920681931.0U priority Critical patent/CN209805077U/en
Application granted granted Critical
Publication of CN209805077U publication Critical patent/CN209805077U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model belongs to the technical field of automation equipment, in particular to a pin inserting machine, which comprises a bracket, wherein an ECU base conveying line, a blind plug conveying line, a finished product conveying line, an XY axis driving device, a rotating support, a first grabbing mechanism, an inserting mechanism, a pushing mechanism and a second grabbing mechanism are arranged on the bracket; the first grabbing mechanism is used for grabbing and placing the ECU base conveyed by the ECU base conveying line onto the rotary support; the pushing mechanism is used for pushing the blind plugs at the output end of the blind plug conveying line into the inserting mechanism; the inserting mechanism is used for inserting the blind plug pushed by the pushing mechanism into a jack of an ECU base positioned on the rotary support; the XY axis driving device is used for driving the ECU base to move, so that the jacks on the XY axis driving device sequentially correspond to the inserting mechanism; the second grabbing mechanism is used for grabbing and placing the finished products onto the finished product conveying line. The utility model discloses an automation of blind stopper cartridge has improved production efficiency, has reduced manufacturing cost, guarantees the cartridge quality of blind stopper.

Description

Pin inserting machine
Technical Field
The utility model belongs to the technical field of automation equipment, especially, relate to a pin machine.
Background
with the increasing application of automobile connectors, the integration level of the connectors is higher and higher due to the synthesis trend of automobiles, and the global automobile connectors account for about 15% of the connector industry, and are expected to account for a larger proportion under the drive of automobile electronic products in the future.
the ECU connector is an important connecting component for an engine to output an electric signal outwards, and comprises a blind plug and an ECU base, wherein the blind plug is inserted in the ECU base, the blind plug is generally manually inserted in the ECU base in the prior art, the working efficiency is low, and the product quality cannot be guaranteed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome above-mentioned technique not enough, provide a pin machine, can realize the automation of blind stopper, high-speed cartridge.
in order to achieve the technical purpose, the technical proposal of the utility model is that:
a pin inserting machine is used for automatically inserting a blind plug on an ECU base, a square boss is arranged at the bottom of the ECU base, the pin inserting machine comprises a support, an ECU base conveying line, a blind plug conveying line, a finished product conveying line, an XY axis driving device, a rotary support for positioning and placing the ECU base, a first grabbing mechanism, an inserting mechanism, a pushing mechanism and a second grabbing mechanism are arranged on the support;
The first grabbing mechanism is used for grabbing and placing the ECU base conveyed by the ECU base conveying line onto the rotary support;
the pushing mechanism is used for pushing the blind plugs at the output end of the blind plug conveying line into the inserting mechanism;
the inserting mechanism is used for inserting the blind plug pushed by the pushing mechanism into a jack of an ECU base positioned on the rotary support;
the XY axis driving device is used for driving the ECU base on the rotating support to move back and forth and left and right, so that the jacks on the ECU base correspond to the inserting mechanisms in sequence;
The second grabbing mechanism is used for grabbing and placing the inserted finished product onto a finished product conveying line.
The utility model has the advantages that:
The utility model discloses an automation of blind stopper cartridge has improved production efficiency, has reduced manufacturing cost, guarantees the cartridge quality of blind stopper.
furthermore, the blind plug conveying line is provided with two blind plug conveying lines which are arranged in parallel at intervals, each blind plug conveying line comprises a vibration disc, the output ends of the vibration discs are respectively connected with a first conveying rail, the first conveying rails are installed on the support through vibrators, a conveying trough matched with the blind plugs is arranged on each first conveying rail, and a blind plug discharging trough capable of containing one blind plug is arranged at the tail end of each conveying trough;
inserting mechanism fixed mounting has a push mechanism between the discharge end of two blind stopper transfer chains in every blind stopper transfer chain all correspondence, and push mechanism installs respectively in the blind stopper blown down tank that corresponds blind stopper transfer chain one side of keeping away from inserting mechanism, and the blind stopper blown down tank is the opening towards the one end of inserting mechanism.
During operation of the blind plug conveying line, the blind plugs are automatically conveyed to the conveying trough of the first conveying track through the vibrating disc, the blind plugs in the conveying trough are driven by the vibrator to be conveyed forwards automatically, and the blind plug conveying line is provided with two spaced parallel arrangements and can be suitable for conveying products of different colors or different specifications.
Furthermore, the pushing mechanism is a pushing cylinder and is respectively installed at the output end of the corresponding first conveying track through an installation seat, a pushing groove matched with the blind plug discharging groove on the corresponding side is formed in the installation seat, and the output end of the pushing cylinder is connected with a second push rod which sequentially pushes the blind plugs in the blind plug discharging grooves to the inserting mechanism along the pushing groove.
Furthermore, the inserting mechanism comprises a fixing plate which is vertically arranged, a first driving cylinder with an output end arranged downwards is mounted on the fixing plate, and the output end of the first driving cylinder is connected with a first push rod; a rotating disc is arranged below the first driving cylinder, a servo motor for driving the rotating disc to rotate is installed on the back face of the fixing plate, a fixing block arranged at an included angle of 90 degrees is installed on the rotating disc, and a through blind plug feeding hole is formed between the middle of the fixing block and the rotating disc;
when the fixed block is in a horizontal state, the blind plug feed hole and the blind plug discharge chute of the corresponding side blind plug conveying line are in the same straight line, and the blind plug in the blind plug discharge chute can be pushed into the blind plug feed hole through the pushing mechanism; when the fixed block is in a vertical state, the first push rod and the blind plug feeding hole are in the same straight line, and the first driving air cylinder can push the blind plug in the blind plug feeding hole into the jack of the ECU base on the rotary support through the push rod.
furthermore, ECU base transfer chain and finished product transfer chain are same straight line and arrange to install at blind stopper transfer chain output, and blind stopper transfer chain sets up perpendicularly relatively, ECU base transfer chain and finished product transfer chain structure are the same including second delivery track, second delivery track is provided with the cavity, be provided with belt conveyor in the cavity, second delivery track's up end is provided with the boss complex draw-in groove with ECU base bottom, the end of draw-in groove is sealed, the boss cooperation setting of ECU base bottom is in the draw-in groove, support simultaneously on belt conveyor's conveyer belt, carry forward through belt conveyor.
The ECU base conveying line and the finished product conveying line are provided with hollow cavities, so that the square bosses at the bottom of the ECU base are matched and arranged in the hollow cavities, and the ECU base and the ECU finished product are stably conveyed forwards.
further, XY axle drive arrangement includes the X axle lead screw module of arranging perpendicularly relative ECU base transfer chain, installs the Y axle lead screw module of arranging relatively ECU base transfer chain parallel on the X axle lead screw module, and the swivel mount is movably installed on Y axle lead screw module.
The transverse and longitudinal positions of the ECU base can be adjusted through the XY axis driving device, so that the jacks on the ECU base sequentially correspond to the inserting mechanisms.
Further, the rotary support is installed on the support between the ECU base conveying line and the finished product conveying line through an XY-axis driving device, the rotary support comprises a rotary table installed on the Y-axis lead screw module, a disc seat is installed on the rotary table, and a groove matched with a square boss at the bottom of the ECU base is formed in the center of the disc seat.
The ECU base is positioned in a groove of the ECU base on the rotary support, and the angle adjustment of the ECU base can be realized through the rotary table.
Furthermore, the first grabbing mechanism and the second grabbing mechanism are identical in structure and are installed on the support through the door-shaped frame, the first grabbing mechanism and the second grabbing mechanism respectively comprise an installation plate, a lifting cylinder is installed on the installation plate, and the output end of the lifting cylinder faces towards and is connected with the clamping jaw cylinder.
When the first grabbing mechanism and the second grabbing mechanism work, the clamping jaw air cylinder is driven to lift through the lifting air cylinder, and the ECU base and a finished product are clamped or put down through the clamping jaw air cylinder.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is a first partial schematic view of an embodiment of the invention;
FIG. 3 is a schematic structural view of the engagement between the inserting mechanism and the pushing mechanism;
FIG. 4 is a schematic structural diagram of the blind plug conveying line and the inserting mechanism in cooperation;
fig. 5 is a cross-sectional view of the first conveying rail;
FIG. 6 is a schematic view showing the structure of a rotary holder mounted on an XY-axis driving device;
FIG. 7 is a schematic structural diagram of a disc base;
Fig. 8 is a structural view of a rotating disk to which a fixing block is mounted.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1-8, the utility model discloses a pin machine for automatically inserting blind plug 1 in ECU base 2, the bottom of ECU base 2 is provided with square boss 3.
the pin inserting machine comprises a support 4, wherein an ECU base conveying line 5, a blind plug conveying line 6, a finished product conveying line 7, a rotary support 8 for positioning and placing the ECU base 2, a first grabbing mechanism 9, an inserting mechanism 12, a pushing mechanism 11 and a second grabbing mechanism 10 are arranged on the support 4.
The blind plug conveying lines 6 can be one or two according to the requirement, and the structure of the pin inserting machine is specifically described by taking the two blind plug conveying lines 6 which are arranged in parallel at intervals as an example in the embodiment.
Blind stopper transfer chain 6 includes vibration dish 21, and the output of vibration dish 21 is connected with first delivery track 62 respectively, and first delivery track 62 passes through vibrator 61 to be installed on support 4, is provided with on the first delivery track 62 with blind stopper 1 complex transport silo 63, and the cross-section of carrying silo 63 is L shape, and the transport silo 63 of L shape can realize blind stopper 1 reliable positioning, and the end of carrying silo 63 is provided with blind stopper blown down tank 65 that can the blind stopper 1 of holding.
The inserting mechanism 12 is fixedly installed between the discharge ends of the two blind plug conveying lines 6 and comprises a fixing plate 121 which is vertically arranged, a first driving cylinder 122 with an output end facing downwards is installed on the front surface of the fixing plate 121, and the output end of the first driving cylinder 121 is connected with a first push rod 123; a rotating disc 124 rotatably mounted on the fixed plate 121 is arranged below the first driving cylinder 121, a servo motor 125 for driving the rotating disc 124 to rotate is mounted on the back surface of the fixed plate 121, a fixed block 126 arranged at an included angle of 90 degrees is mounted in the circumferential direction of the rotating disc 124, and a through blind plug feeding hole 127 is arranged between the middle of the fixed block 126 and the rotating disc 124.
The blind plug feeding hole 127 between the fixed block 126 and the rotating disc 124 which rotate to the horizontal state and the blind plug discharging groove 65 of the blind plug conveying line 6 on the corresponding side are in the same straight line; the blind plug feeding hole 127 between the fixed block 126 and the rotating disc 124 which are rotated to be vertical is in the same straight line with the first push rod 123.
The blind plug conveying line 6 is correspondingly provided with a pushing mechanism 11 respectively, the pushing mechanism 11 comprises a pushing cylinder 12, the pushing cylinder 12 is installed on the outer side of the output end of the blind plug conveying line 6 through an installation seat 14, a pushing groove 15 which is matched with the blind plug discharge groove 65 corresponding to the output end of the blind plug conveying line 6 is arranged on the installation seat 14, and the output end of the pushing cylinder is connected with a second push rod 16 which sequentially pushes the blind plug 2 in the blind plug discharge groove 65 to the blind plug feed hole 127 of the inserting mechanism 12 along the pushing groove 15.
As a further explanation of this embodiment, in order to prevent the blind plug 1 in the blind plug feeding hole 127 from falling, the caliber of the blind plug feeding hole 127 is slightly smaller than the caliber of the blind plug 1, so that the blind plug 1 is in interference fit in the blind plug feeding hole 127, and meanwhile, in order to ensure that the blind plug can be smoothly pushed into the blind plug feeding hole 127, the fixing block 126 may be made of a flexible material such as rubber.
ECU base transfer chain 5 and finished product transfer chain 7 are same straight line and arrange the output of installing at blind stopper transfer chain 6, and blind stopper transfer chain 6 sets up perpendicularly relatively, ECU base transfer chain 5 is the same with the structure of finished product transfer chain 7, including second transfer track 51, be provided with on the second transfer track 51 with the square boss 3 complex bar draw-in groove 54 of ECU base 2 bottom, be provided with belt conveyor 53 in the second transfer track 51 of bar draw-in groove 54 below, the boss 3 cooperation setting of ECU base 2 bottom is in bar draw-in groove 54, support simultaneously on belt conveyor 53's conveyer belt.
rotatory support 8 passes through XY axle drive arrangement 13 and installs on support 4 between ECU base transfer chain 5 and finished product transfer chain 7, XY axle drive arrangement 13 includes the X axle lead screw module 131 of arranging perpendicularly relative to ECU base transfer chain 5, install the Y axle lead screw module 132 of relative ECU base transfer chain 5 parallel arrangement on the X axle lead screw module 131, but rotatory support 8 longitudinal movement ground is installed on Y axle lead screw module 132, rotatory support 8 includes revolving stage 82, it installs disc seat 83 to rotate on the revolving stage 82, the center of disc seat 83 is provided with the recess 84 with the boss 3 complex of ECU base 2 bottom.
first snatch mechanism 9 and second and snatch mechanism 10 and install in ECU base transfer chain 5 and finished product transfer chain 7's top through X axle module 20, and X axle module 20 is installed on support 4 through door-shaped frame 30, and first snatch mechanism 8 and second snatch the structure of mechanism 10 and are the same, including mounting panel 91, install lift cylinder 92 on the mounting panel 91, and lift cylinder 92's output is towards, and be connected with clamping jaw cylinder 93.
The working principle of the embodiment is as follows:
1. the blind plug conveying line 6 conveys the blind plugs 1 in the output direction under the action of the first vibrator 61, and the ECU base 2 is manually placed on the ECU base conveying line 5 and conveyed forwards through the belt conveyor 53.
2. The X-axis module 20 drives the first grabbing mechanism 9 to move to the position above the tail end of the ECU base conveying line 5, and the rotating support 8 moves to the position between the blind plug conveying line 6 and the finished product conveying line 7 under the driving of the XY-axis driving device 13.
3. the lifting cylinder 92 of the first grabbing mechanism 9 drives the clamping jaw cylinder 93 to move downwards, the ECU base 2 at the tail end of the ECU base conveying line 5 is clamped through the clamping jaw cylinder 93, after clamping is completed, the lifting cylinder 92 of the first grabbing mechanism 9 moves upwards and is driven by the X-axis module 20 to move to the position above the rotary support 8, the grabbed ECU base 2 is placed on the disc seat 83 under the driving of the lifting cylinder 92 of the first grabbing mechanism 9, and the square boss 3 at the bottom of the ECU base 2 is arranged in the groove 84 of the disc seat 83 in a matched mode.
4. Meanwhile, the servo motor 125 drives the rotating disks 124 to rotate until one of the fixed blocks 126 is in a horizontal state, so that the blind plug feeding hole 127 between the fixed block 126 and the rotating disk 124 is in the same straight line with the blind plug discharging groove 65 on the corresponding side, and then the blind plug 1 in the blind plug discharging groove 65 is pushed into the blind plug feeding hole 127 through the pushing mechanism 11.
5. The fixed block 126 provided with the blind plug 1 in the blind plug feeding hole 127 is driven to rotate 90 degrees by the rotating disc 124, the blind plug feeding hole 127 of the fixed block 126 is vertically downward, the first driving cylinder 121 drives the first push rod 123 to push the blind plug 1 in the blind plug feeding hole 127 between the vertically downward fixed block 126 and the rotating disc 124 downward to the insertion hole of the ECU base 2 on the rotating support 8, the other fixed block 126 correspondingly rotates to a horizontal state, and the blind plug 1 in the blind plug discharging groove 65 is pushed into the blind plug feeding hole 127 by the pushing mechanism 11.
6. The servo motor 125 drives the rotating disc 124 to rotate, the blind plugs 1 conveyed by the blind plug conveying line 6 are circularly pushed into blind plug feeding holes 127 of the inserting mechanism 12, and the XY-axis driving device 13 drives the rotating support 8 to change inserting positions, so that the inserting mechanism 12 sequentially inserts the blind plugs 1 into the inserting holes of the ECU base 2 until the blind plugs 1 on the ECU base 2 are inserted.
7. The rotating support 8 moves between the blind plug conveying line 6 and the finished product conveying line 7 under the driving of the XY-axis driving device 13, and the finished product is grabbed and placed to the finished product conveying line 7 through the second grabbing mechanism 10 to be output.
8. And repeating the steps to realize the automatic insertion of the blind plug 1.
The above description of the present invention does not limit the scope of the present invention. Any other corresponding changes and modifications made according to the technical idea of the present invention should be included in the scope of the claims of the present invention.

Claims (4)

1. the utility model provides a pin machine for automatically with blind stopper cartridge on the ECU base, the bottom of ECU base is provided with square boss, its characterized in that: the pin inserting machine comprises a support, wherein an ECU base conveying line, a blind plug conveying line, a finished product conveying line, an XY axis driving device, a rotary support for positioning and placing the ECU base, a first grabbing mechanism, an inserting mechanism, a pushing mechanism and a second grabbing mechanism are arranged on the support;
The first grabbing mechanism is used for grabbing and placing the ECU base conveyed by the ECU base conveying line onto the rotary support;
The pushing mechanism is used for pushing the blind plugs at the output end of the blind plug conveying line into the inserting mechanism;
The inserting mechanism is used for inserting the blind plug pushed by the pushing mechanism into a jack of an ECU base positioned on the rotary support;
The XY axis driving device is used for driving the ECU base on the rotating support to move back and forth and left and right, so that the jacks on the ECU base correspond to the inserting mechanisms in sequence;
The second grabbing mechanism is used for grabbing and placing the inserted finished product onto a finished product conveying line;
The blind plug conveying line is provided with two blind plug conveying lines which are arranged in parallel at intervals, each blind plug conveying line comprises a vibration disc, the output ends of the vibration discs are respectively connected with a first conveying rail, the first conveying rails are mounted on the support through vibrators, a conveying trough matched with the blind plugs is arranged on each first conveying rail, and a blind plug discharging trough capable of containing one blind plug is arranged at the tail end of each conveying trough;
The inserting mechanism is fixedly arranged between the discharge ends of the two blind plug conveying lines, each blind plug conveying line corresponds to one pushing mechanism, the pushing mechanisms are respectively arranged on one sides, away from the inserting mechanism, of the blind plug discharge grooves of the corresponding blind plug conveying lines, and one ends, facing the inserting mechanism, of the blind plug discharge grooves are openings;
the pushing mechanism is a pushing cylinder and is respectively installed at the output end of the corresponding first conveying rail through an installation seat, a pushing groove which is matched with the blind plug discharging groove on the corresponding side is formed in the installation seat, and the output end of the pushing cylinder is connected with a second push rod which sequentially pushes the blind plugs in the blind plug discharging grooves to the inserting mechanism along the pushing groove;
The inserting mechanism comprises a fixed plate which is vertically arranged, a first driving air cylinder with an output end arranged downwards is mounted on the fixed plate, and the output end of the first driving air cylinder is connected with a first push rod; a rotating disc is arranged below the first driving cylinder, a servo motor for driving the rotating disc to rotate is installed on the back face of the fixing plate, a fixing block arranged at an included angle of 90 degrees is installed on the rotating disc, and a through blind plug feeding hole is formed between the middle of the fixing block and the rotating disc;
the blind plug feeding hole between the fixed block and the rotating disc which rotate to the horizontal state and the blind plug discharge chute of the blind plug conveying line on the corresponding side are in the same straight line, and the blind plug in the blind plug discharge chute can be pushed into the blind plug feeding hole through the pushing mechanism; the blind plug feeding hole between the fixed block and the rotating disc which are rotated to be in a vertical state is positioned on the same straight line with the first push rod, and the first drive cylinder can drive the first push rod to push the blind plug in the blind plug feeding hole into the jack of the ECU base on the rotating support;
ECU base transfer chain and finished product transfer chain are same straight line and arrange the output of installing at the blind stopper transfer chain, and set up perpendicularly relatively the blind stopper transfer chain, and ECU base transfer chain and finished product transfer chain's structure is the same, including second delivery track, be provided with on the second delivery track with the square boss complex bar draw-in groove of ECU base bottom, be provided with the belt conveyor in the second delivery track of bar draw-in groove below, the boss cooperation setting of ECU base bottom is in the bar draw-in groove, support simultaneously on the conveyer belt of belt conveyor.
2. A pin inserter according to claim 1 wherein: XY axle drive arrangement includes the X axle lead screw module of arranging perpendicularly relative ECU base transfer chain, installs the Y axle lead screw module of arranging relatively ECU base transfer chain parallel on the X axle lead screw module, and the rotating support is movably installed on Y axle lead screw module.
3. A pin inserter according to claim 2 wherein: the rotary support is installed on a support between the ECU base conveying line and the finished product conveying line through an XY-axis driving device and comprises a rotary table installed on a Y-axis lead screw module, a disc seat is installed on the rotary table, and a groove matched with a square boss at the bottom of the ECU base is formed in the center of the disc seat.
4. A pin inserter according to claim 3 wherein: first snatch mechanism and second and snatch the mechanism and install in the top of ECU base transfer chain and finished product transfer chain through X axle module, and X axle module passes through the door-shaped frame and installs on the support, and first snatch mechanism and second snatch the structure of mechanism the same, including the mounting panel, install the lift cylinder on the mounting panel, the output orientation of lift cylinder is connected with clamping jaw cylinder.
CN201920681931.0U 2019-05-10 2019-05-10 Pin inserting machine Expired - Fee Related CN209805077U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920681931.0U CN209805077U (en) 2019-05-10 2019-05-10 Pin inserting machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920681931.0U CN209805077U (en) 2019-05-10 2019-05-10 Pin inserting machine

Publications (1)

Publication Number Publication Date
CN209805077U true CN209805077U (en) 2019-12-17

Family

ID=68832534

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920681931.0U Expired - Fee Related CN209805077U (en) 2019-05-10 2019-05-10 Pin inserting machine

Country Status (1)

Country Link
CN (1) CN209805077U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110165522A (en) * 2019-05-10 2019-08-23 扬州市职业大学(扬州市广播电视大学) A kind of pin machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110165522A (en) * 2019-05-10 2019-08-23 扬州市职业大学(扬州市广播电视大学) A kind of pin machine
CN110165522B (en) * 2019-05-10 2024-06-07 扬州市职业大学(扬州市广播电视大学) Pin inserting machine

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GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20191217

Termination date: 20200510