CN110791799A - Electrophoresis conveying equipment for pretreatment of automobile - Google Patents
Electrophoresis conveying equipment for pretreatment of automobile Download PDFInfo
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- CN110791799A CN110791799A CN201911136372.6A CN201911136372A CN110791799A CN 110791799 A CN110791799 A CN 110791799A CN 201911136372 A CN201911136372 A CN 201911136372A CN 110791799 A CN110791799 A CN 110791799A
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- guide rail
- supporting seat
- guide wheel
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D13/00—Electrophoretic coating characterised by the process
- C25D13/22—Servicing or operating apparatus or multistep processes
Abstract
The invention provides an automobile pretreatment electrophoresis conveying device, which comprises: a supporting seat and a plurality of soaking tanks; the device comprises two fixing plates, a righting guide rail, a first guide rail, a second guide rail, a third guide rail, a fixing frame, a plurality of rotating devices, a vehicle body, a third guide wheel and a fourth guide wheel device, wherein the third guide wheel moves in a matched manner with the righting guide rail, and the lower end of one side of each rotating device, which is close to the fourth guide wheel device, is also fixedly connected with a fifth guide wheel matched with the third guide rail; the fourth guide wheel device and the overturning guide rail move in a matched mode to enable the rotating device to rotate; the traveling vehicle group is arranged at the bottom end of the rotating device and comprises a first guide wheel which moves in a matched manner with the second guide rail; a traction chain and a chain driving device. The invention can improve the surface coating quality of the vehicle body.
Description
Technical Field
The invention relates to the technical field of electrophoresis conveying equipment, in particular to automobile pretreatment electrophoresis conveying equipment.
Background
With the rapid increase of economy, domestic automobiles comprehensively advance to middle and high-end markets from low-end markets, and new requirements are put forward on appearance quality, energy consumption requirements and the like of the automobiles.
At present, the prior automobile coating pretreatment and electrophoresis production line mainly adopts a power and free conveyor, a swing link chain conveyor and the like, and has the following problems: the conveying chain is positioned above the dipping tank and easily pollutes tank liquor, and the tank liquor at each station is not drained to cause the problem of tank crossing, thereby influencing the surface coating quality of the vehicle body.
Disclosure of Invention
The invention provides an automobile pretreatment electrophoresis conveying device, which is used for solving the problems.
An automotive pretreatment electrophoresis conveying apparatus comprising:
the upper end of the supporting seat is provided with a plurality of soaking grooves at intervals along the length direction;
the two fixing plates are respectively and fixedly connected to two sides of the upper part of the supporting seat along the length direction, a righting guide rail is arranged on one fixing plate, a first guide rail, a second guide rail and a third guide rail are sequentially arranged on the other fixing plate from outside to inside along the width direction of the supporting seat, and the righting guide rail, the first guide rail, the second guide rail and the third guide rail are all arranged along the length direction of the supporting seat;
the fixing frame is positioned above the supporting seat, a plurality of rotating devices are fixedly arranged at the upper end of the fixing frame at intervals along the length direction of the supporting seat, the top ends of the rotating devices are detachably connected with a vehicle body, the rotating devices are respectively provided with a third guide wheel device and a fourth guide wheel device along two sides of the length direction of the supporting seat, the third guide wheel device is matched with the righting guide rail to move, and the lower end of one side of the rotating device, which is close to the fourth guide wheel device, is also fixedly connected with a fifth guide wheel matched with the third guide rail;
the turning guide rail is positioned on one side of the supporting seat along the length direction and is arranged along the length direction of the supporting seat, and the fourth guide wheel device and the turning guide rail are matched to move so that the rotating device rotates;
the running vehicle set is arranged at the bottom end of the rotating device and comprises a first guide wheel, and the first guide wheel and the second guide rail move in a matched mode;
the traction chain is arranged along the length direction of the supporting seat, the lower ends of the two sides of the traction chain along the length direction of the supporting seat are respectively and fixedly connected with a sliding frame, the lower end of the sliding frame is fixedly connected with a second guide wheel, the second guide wheel is matched with the first guide rail to move, and one side of the fixing frame is provided with a traction pin connected with the traction chain;
and the chain driving device is connected with the traction chain and used for driving the traction chain.
Preferably, the rotating means includes: the rotating shaft is arranged along the width direction of the supporting seat, a first end of the rotating shaft is fixedly connected with a third guide wheel, and a second end of the rotating shaft is fixedly connected with a fourth guide wheel device; the second connecting support is fixedly connected to the position, close to the second end, of the rotating shaft, the lower end of the second connecting support is fixedly connected with the fixing frame, and the fifth guide wheel is fixedly connected to one side of the second connecting support; and the vehicle body connecting clamp is used for connecting a vehicle body and is arranged on the rotating shaft.
Preferably, the fourth guide wheel device includes: the central part of the connecting plate is fixedly connected with the second end of the rotating shaft; the two fourth guide wheels are symmetrically connected to one side, facing the overturning guide rail, of the connecting plate, and are positioned on two sides of the rotating shaft parallel to the length direction of the overturning guide rail;
the turnover guide rail is opened towards one side of the supporting seat, the fourth guide wheel moves in the opening, and the turnover guide rail comprises: a plurality of straightways and a plurality of circular arc section of formula structure as an organic whole, straightway and circular arc section set up along supporting seat length direction interval, and straightway and circular arc section end to end link firmly, the circular arc opening of circular arc section sets up vertically up, the top of straightway is equipped with the breach.
Preferably, the first guide rail is an i-shaped rail, and the second guide wheel rolls on the inner surface of the lower end of the first guide rail.
Preferably, the second guide rail is an i-shaped rail, and the number of the first guide wheels is two;
the walking vehicle group comprises:
the upper end of the first connecting bracket is detachably connected with the bottom end of the rotating device;
the opening of the U-shaped bracket is vertically downward, and the upper end of the U-shaped bracket is fixedly connected with the lower end of the first connecting bracket;
the two first guide wheels are respectively connected to the inner walls of the two sides of the U-shaped support, and the two second guide wheels respectively roll on the surfaces of the two sides of the web plate of the second guide rail.
Preferably, still include the bracing, the bracing both ends fixed connection is respectively at fixed plate lower extreme and supporting seat lateral wall.
Preferably, the chain drive device includes: the first controller is connected with the driving motor through a driving control circuit, and the driving motor is also connected with a power supply through an overcurrent protection circuit;
the drive control circuit includes:
one end of the fourth resistor and one end of the second resistor are respectively connected with the first controller;
the base electrode of the first transistor is connected with the other end of the fourth resistor;
a base electrode of the third triode is connected with the other end of the second resistor;
a base electrode of the fifth transistor is connected with an emitting electrode of the third transistor, and the emitting electrode of the fifth transistor is grounded;
one end of the third resistor is connected with a collector electrode of the first transistor;
a base electrode of the sixth transistor is connected with the other end of the third resistor, and a collector electrode of the sixth transistor is connected with a collector electrode of the fifth transistor;
a base electrode of the fourth transistor is connected with an emitting electrode of the first transistor, and the emitting electrode of the fourth transistor is grounded;
a collector of the second transistor is connected with a collector of the fourth transistor, and an emitter of the second transistor is connected with an emitter of the sixth transistor and connected with an output end of the over-current protection circuit;
one end of the first resistor is connected with the base electrode of the second crystal triode, and the other end of the first resistor is connected with the collector electrode of the third crystal triode;
the connection node of the collector electrode of the second transistor and the collector electrode of the fourth transistor is connected with the driving motor, and the connection node of the collector electrode of the sixth transistor and the collector electrode of the fifth transistor is connected with the driving motor;
the overcurrent protection circuit includes:
a first end of the fifth resistor is connected with the driving motor;
the emitting electrode of the ninth transistor is connected with the first end of the fifth resistor, and the base electrode of the ninth transistor is connected with the second end of the fifth resistor;
an emitting electrode of the eighth transistor is connected with a second end of the fifth resistor, and a base electrode of the eighth transistor is connected with a collector electrode of the ninth transistor;
one end of the sixth resistor is connected with the first end of the fifth resistor, and the base electrode of the eighth transistor at the other end of the sixth resistor is connected;
a seventh transistor, wherein a collector of the seventh transistor is connected with a base of the eighth transistor through a twelfth resistor;
one end of the eleventh resistor is connected with the base electrode of the seventh transistor, and the other end of the eleventh resistor is connected with the emitting electrode of the seventh transistor and grounded;
one end of the seventh resistor is connected with the base electrode of the seventh transistor, and the other end of the seventh resistor is connected with the first controller;
the first end of the current fuse is connected with the collector electrode of the eighth transistor;
one end of the tenth resistor is connected with the second end of the current fuse, the other end of the tenth resistor is respectively connected with one end of a ninth resistor and one end of an eighth resistor, the other end of the ninth resistor is connected with the first controller, and the other end of the eighth resistor is connected with an emitting electrode of a seventh transistor;
the capacitor is a filter capacitor, a first end of the capacitor is connected with a second end of the current fuse, a first end of the first capacitor is an output end of the overcurrent protection circuit, and a second end of the capacitor is connected with an emitting electrode of the seventh transistor;
the eighth transistor, the ninth transistor, the second transistor and the sixth transistor are PNP transistors, and the other transistors are NPN transistors.
Preferably, an electric telescopic air pipe is arranged on the vehicle body connecting clamp, a compressed air bottle is fixedly connected to the fixing frame, an air outlet of the compressed air bottle is communicated with a fixed end of the electric telescopic air pipe, an electromagnetic valve is connected to the electric telescopic air pipe close to an outlet end of the compressed air bottle, and a position sensor is arranged on the rotating device;
still include drying device, drying device includes:
the drying chamber is arranged at the top end of the fixing plate;
the two air heaters are respectively arranged on the outer walls of two opposite sides of the drying chamber, the air heaters are connected with a first air pipe, and the first air pipe penetrates through the outer wall of the supporting seat and extends into the drying chamber;
the second air pipe is horizontally arranged, the lower end of the second air pipe is fixedly connected with the bottom wall of the drying chamber, and two ends of the second air pipe are fixedly connected with one ends of the two first air pipes in the drying chamber respectively;
the two third air pipes are respectively fixedly arranged at the positions, close to the two ends, of the second air pipe, the third air pipes are vertically arranged, and the lower ends of the third air pipes penetrate through the upper ends of the second air pipes;
a plurality of first guide pipes are arranged at the upper ends of the second air pipes, and a plurality of second guide pipes are arranged on the sides, close to each other, of the two third air pipes;
the temperature sensor is arranged on the inner wall of the drying chamber;
the second controller is arranged on the side wall of the supporting seat and connected with an alarm, and the two air heaters, the temperature sensor, the electromagnetic valve, the position sensor and the electric telescopic air pipe are respectively and electrically connected with the second controller.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of the structure of the present invention.
Fig. 2 is a right side view of the present invention.
Fig. 3 is a partially enlarged view of a portion B in fig. 2.
Fig. 4 is a partially enlarged view of a portion a in fig. 2.
Fig. 5 is a partially enlarged view of a portion C in fig. 1.
Fig. 6 is a partially enlarged view of a portion D in fig. 1.
Fig. 7 is a circuit diagram of an overcurrent protection circuit and a drive control circuit according to the present invention.
Fig. 8 is a schematic structural diagram of an embodiment of the drying apparatus of the present invention.
In the figure: 1. a supporting seat; 11. soaking the tank; 2. a fixing plate; 21. righting the guide rail; 22. a first guide rail; 23. a second guide rail; 231. a web; 24. a third guide rail; 25. bracing; 3. a fixed mount; 31. a tow pin; 4. a rotating device; 41. a vehicle body; 42. a third guide wheel; 43. a fourth guide wheel device; 431. a connecting plate; 432. a fourth guide wheel; 45. a fifth guide wheel; 46. a rotating shaft; 47. a second connecting bracket; 48. the vehicle body is connected with a clamp; 5. overturning the guide rail; 51. a straight line segment; 511. a notch; 52. a circular arc section; 6. a walking vehicle set; 61. a first guide wheel; 62. a first connecting bracket; 63. a U-shaped bracket; 7. a drying device; 71. a drying chamber; 72. a hot air blower; 73. a first air duct; 74. a second air duct; 75. a third air duct; 76. a first draft tube; 77. a second draft tube; 8. a drag chain; 81. a carriage; 82. a second guide wheel; r1, a first resistor; r2, a second resistor; r3, third resistor; r4, fourth resistor; r5, fifth resistor; r6, sixth resistor; r7, seventh resistor; r8, eighth resistor; r9, ninth resistor; r10, tenth resistor; r11, eleventh resistor; r12, twelfth resistor; q1, the first transistor; q2, second transistor; q3, third transistor; q4, fourth transistor; q5, the fifth transistor; q6, sixth transistor; q7, seventh transistor; q8, eighth transistor; q9, ninth transistor; c1, capacitance.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
An embodiment of the present invention provides an electrophoresis conveying apparatus for automobile pretreatment, as shown in fig. 1 to 6, including:
the device comprises a supporting seat 1, wherein a plurality of soaking grooves 11 are formed in the upper end of the supporting seat 1 at intervals along the length direction; the number of the soaking tanks and the distance between the adjacent soaking tanks can be set according to requirements;
the two fixing plates 2 are fixedly connected to two sides of the upper portion of the supporting seat 1 along the length direction respectively, a righting guide rail 21 is arranged on one fixing plate 2, a first guide rail 22, a second guide rail 23 and a third guide rail 24 are sequentially arranged on the other fixing plate 2 from outside to inside along the width direction of the supporting seat 1, and the righting guide rail 21, the first guide rail 22, the second guide rail 23 and the third guide rail 24 are all arranged along the length direction of the supporting seat 1;
the fixing frame 3 is positioned above the supporting seat 1, the upper end of the fixing frame 3 is fixedly provided with a plurality of rotating devices 4 at intervals along the length direction of the supporting seat 1, the top ends of the rotating devices 4 are detachably connected with a vehicle body 41, the two sides of the rotating devices 4 along the length direction of the supporting seat 1 are respectively provided with a third guide wheel 42 and a fourth guide wheel device 43, the third guide wheel 42 is matched with the righting guide rail 21 to move (for example, the third guide wheel moves at the upper end of the righting guide rail), and the lower end of one side of the rotating devices 4, which is close to the fourth guide wheel device 43, is also fixedly connected with a fifth guide wheel 45 matched with the third;
the overturning guide rail 5 is positioned on one side of the supporting seat 1 along the length direction and is arranged along the length direction of the supporting seat 1, and the fourth guide wheel device 43 and the overturning guide rail 5 move in a matched mode to enable the rotating device 4 to rotate; preferably, the overturning guide rail is fixedly arranged on one side of the supporting seat through a connecting piece and is not connected with the supporting seat;
the running vehicle set 6 is arranged at the bottom end of the rotating device 4, the running vehicle set 6 comprises a first guide wheel 61, and the first guide wheel 61 is matched with the second guide rail 23 for movement;
the traction chain 8 is arranged along the length direction of the supporting seat 1, the lower ends of the two sides of the traction chain 8 along the length direction of the supporting seat are respectively and fixedly connected with a sliding frame 81, the lower end of the sliding frame 81 is fixedly connected with a second guide wheel 82, the second guide wheel 82 is matched with the first guide rail 22 to move, and one side of the fixing frame 3 is provided with a traction pin 31 connected with the traction chain 8;
and the chain driving device is connected with the traction chain 8 and used for driving the traction chain 8. The chain driving device is used by the existing chain conveyor;
the working principle and the beneficial effects of the technical scheme are as follows: the chain driving device drives the traction chain to move, in the structure, the fixed frame 3, the rotating device 4, the third guide wheel 42, the fourth guide wheel device 43, the fifth guide wheel 45 and the running vehicle group 6 are connected into an integral structure, the third guide wheel 42 and the fifth guide wheel 45 can support the integral structure, one side of the fixed frame 3 is provided with the traction pin 31 connected with the traction chain 8, the traction chain 8 moves to drive the whole integral structure to move, meanwhile, the third guide wheel 42 moves on the righting guide rail 21, the fifth guide wheel 45 moves on the third guide rail 24, the first guide wheel 61 moves on the second guide rail 23, and the whole integral structure can reliably move; in addition, the turning guide rail 5 is positioned on one side of the supporting seat 1 along the length direction and is arranged along the length direction of the supporting seat 1, and the fourth guide wheel device 43 and the turning guide rail 5 move in a matched manner to enable the rotating device 4 to rotate, so that the vehicle body 41 is driven to turn over to enter or leave the soaking tank 11;
compared with the accumulation type conveyor and the swing link chain conveyor adopted by the prior domestic automobile coating pretreatment and electrophoresis production line, the invention has the following advantages: 1. the structure is simple, the occupied space is small, the total volume of the tank is small, and the waste of tank liquor is avoided; 2. the conveying chain (the traction chain 8) is positioned on the side of the dipping tank 11, so that the tank liquor is not easily polluted, and the surface quality of the vehicle body 41 can be improved; 3. in the production process, the rotating device 4 rotates to drive the vehicle body 41 to turn over to enter or leave the dipping tank 11, the vehicle body 41 can drive the tank liquid in the dipping tank 11 to flow repeatedly by turning over, and the problem of uneven concentration caused by long-time storage and precipitation of the tank liquid is avoided, so that the coating quality of the surface of the vehicle body 41 is improved; 3. after the immersion tank 11 is finished, the rotary device 4 can be rotated to drain the tank liquor at each station, so that the problem of tank mixing is avoided, and the surface coating quality of the vehicle body 41 can be improved.
According to the invention, the chain driving device can drive the integrated structure to walk and turn over to enter or leave the dipping tank 11, and the vehicle body 41 can enter or leave the dipping tank 11 without manpower or other complicated devices, so that the operation cost is reduced, and the energy consumption is effectively reduced.
In one embodiment, as shown in fig. 2, the rotating device 4 comprises: the rotating shaft 46 is arranged along the width direction of the supporting seat 1, a first end of the rotating shaft 46 is fixedly connected with the third guide wheel 42, and a second end of the rotating shaft 46 is fixedly connected with the fourth guide wheel device 43; the second connecting bracket 47 is fixedly connected to the second end of the rotating shaft 46, which is close to the second end, the lower end of the second connecting bracket 47 is fixedly connected with the fixed frame 3, and the fifth guide wheel 45 is fixedly connected to one side of the second connecting bracket 47; and a vehicle body connecting clamp 48 for connecting the vehicle body 41, the vehicle body connecting clamp 48 being provided on the rotating shaft 46.
The working principle and the beneficial effects of the technical scheme are as follows: the structure is simple, the third guide wheel 42 and the fifth guide wheel 45 can support the rotating shaft 46, the third guide wheel 42 can righting the guide rail 21 to move, the fifth guide wheel 45 can drive the whole rotating device 4 to move reliably in the third guide rail 24, the fourth guide wheel device 43 is used for driving the rotating shaft 46 to rotate, the rotating shaft 46 is provided with the vehicle body connecting clamp 48 for connecting the vehicle body 41, and the rotating shaft 46 can be used for driving the vehicle body 41 to turn to enter or leave the soaking tank 11.
In one embodiment, as shown in fig. 1 and 4, the fourth guide wheel device 43 includes: the central part of the connecting plate 431 is fixedly connected with the second end of the rotating shaft 46; two fourth guide wheels 432, the two fourth guide wheels 432 are symmetrically connected to one side of the connecting plate 431 facing the turning guide rail 5, and the two fourth guide wheels 432 are located at two sides of the rotating shaft 46 parallel to the length direction of the turning guide rail 5 (i.e. a connecting line between the two fourth guide wheels is parallel to the length direction of the turning guide rail 5, and the two fourth guide wheels are located at two sides of the rotating shaft respectively);
the turning rail 5 is opened toward one side of the supporting seat 1, and the fourth guide wheel 432 moves in the opening, and the turning rail 5 includes: a plurality of straightway 51 and a plurality of circular arc section 52 of formula structure as an organic whole, straightway 51 and circular arc section 52 set up along 1 length direction interval of supporting seat, and straightway 51 and circular arc section 52 end to end link firmly, the circular arc opening of circular arc section 52 is vertical sets up, straightway 51's top is equipped with breach 511.
The working principle and the beneficial effects of the technical scheme are as follows: the two fourth guide wheels 432 are both used for moving in the roll-over guide rail 5, and because the roll-over guide rail 5 comprises the straight line sections 51 and the circular arc sections 52 which are arranged at intervals, the process comprises the following steps at different positions of the straight line sections 51 and the circular arc sections 52: firstly, the fourth guide wheel 432 passes through the first straight line segment 51 (namely, the straight line segment at the head end of the turnover guide rail), and the fourth guide wheel 432 at the front side moves in the straight line segment 51; then the rear fourth guide wheel 432 also enters the straight section 51; then the front guide wheel enters the front end of the arc section 52, the rear fourth guide wheel 432 tilts upwards and rotates (the rotating device 4 rotates under the resistance of the turnover guide rail 5), when the front fourth guide wheel 432 moves to be close to the tail end of the arc section 52 along the arc section 52, the rear fourth guide wheel 432 rotates to be positioned in front, and firstly enters the second straight end from the notch 511; the rotation of the rotating device 4 drives the vehicle body to turn over and return, and the rule of the turning guide rail 5 changes in such a circulating way, so that the vehicle body on the rotating device 4 is turned over at different angles at different positions, and the process production requirements are met. The structure is simple, and the rotating device 4 is rotated to drive the vehicle body to turn over and return.
In one embodiment, as shown in fig. 3, the first rail 22 is an i-shaped rail, and the second guide wheel 82 rolls on the inner surface of the lower end of the first rail 22.
The working principle and the beneficial effects of the technical scheme are as follows: the first rail 22 is an i-shaped rail, the second guide pulley 82 rolls on the inner surface of the lower end of the first rail 22, and the second guide pulley 82 is supported on the inner surface of the lower end of the first rail 22 for supporting and facilitating the movement of the traction chain 8.
In one embodiment, as shown in fig. 2-3, the second guide rail 23 is an i-shaped rail, and the number of the first guide wheels 61 is two;
the running car group 6 includes:
the upper end of the first connecting bracket 62 is detachably connected with the bottom end of the rotating device 4;
the U-shaped bracket 53 is provided with a downward opening, and the upper end of the U-shaped bracket 53 is fixedly connected with the lower end of the first connecting bracket 62;
the two first guide wheels 61 are respectively connected to the inner walls of both sides of the U-shaped bracket 53, and the two second guide wheels 82 respectively roll on both side surfaces of the web 231 of the second guide rail 23.
The working principle and the beneficial effects of the technical scheme are as follows: the first connecting support 62 is used for connecting the rotating device 4, the upper end of the first connecting support 62 is detachably connected with the bottom end of the rotating device 4, so that the walking vehicle set 6 can be conveniently disassembled and replaced, the inner walls of the two sides of the U-shaped support 53 are respectively provided with the first guide wheels 61, and the two second guide wheels 82 respectively roll on the surfaces of the two sides of the web 231 of the second guide rail 23, so that the reliable guide is facilitated.
In one embodiment, as shown in fig. 2, the support device further comprises a diagonal brace 25, and two ends of the diagonal brace 25 are fixedly connected to the lower end of the fixing plate 2 and the outer side wall of the support seat 1, respectively.
The working principle and the beneficial effects of the technical scheme are as follows: the inclined strut 25 is arranged to support the fixing plate 2 reliably, so that the electrophoresis conveying equipment is stable and reliable in structure.
In one embodiment, the chain drive device includes: the first controller is connected with the driving motor through a driving control circuit, and the driving motor is also connected with a power supply through an overcurrent protection circuit; the chain driving device is a chain driving device used in an existing chain conveyor, and the chain driving device generally includes a driving motor, a driving sprocket and the like, which are prior art and are not described herein again.
As shown in fig. 7, the drive control circuit includes:
one end of the fourth resistor R4 and one end of the second resistor R2 are respectively connected with the first controller;
a first transistor Q1, wherein the base of the first transistor Q1 is connected with the other end of the fourth resistor R4;
a third transistor Q3, wherein the base of the third transistor Q3 is connected to the other end of the second resistor R2;
a fifth transistor Q5, wherein the base of the fifth transistor Q5 is connected to the emitter of the third transistor Q3, and the emitter of the fifth transistor Q5 is grounded;
a third resistor R3, wherein one end of the third resistor R3 is connected with the collector of the first transistor Q1;
a sixth transistor Q6, the base of the sixth transistor Q6 is connected with the other end of the third resistor R3, and the collector of the sixth transistor Q6 is connected with the collector of the fifth transistor Q5;
a fourth transistor Q4, the base of the fourth transistor Q4 being connected to the emitter of the first transistor Q1, the emitter of the fourth transistor Q4 being connected to ground;
a collector of the second transistor Q2 is connected with a collector of a fourth transistor Q4, and an emitter of the second transistor Q2 is connected with an emitter of a sixth transistor Q6 and an output end of the overcurrent protection circuit;
a first resistor R1, wherein one end of the first resistor R1 is connected with the base electrode of the second transistor Q2, and the other end is connected with the collector electrode of the third transistor Q3;
the connecting node of the collector of the second transistor Q2 and the collector of the fourth transistor Q4 is connected with the driving motor, and the connecting node of the collector of the sixth transistor Q6 and the collector of the fifth transistor Q5 is connected with the driving motor;
the overcurrent protection circuit includes:
a first end of the fifth resistor R5 is connected with the driving motor;
a ninth transistor Q9, an emitter of the ninth transistor Q9 is connected to a first end of a fifth resistor R5, and a base of the ninth transistor Q9 is connected to a second end of the fifth resistor R5;
an eighth transistor Q8, an emitter of the eighth transistor Q8 is connected with the second end of the fifth resistor R5, and a base of the eighth transistor Q8 is connected with a collector of a ninth transistor Q9;
one end of the sixth resistor R6 is connected with the first end of the fifth resistor R5, and the base electrode of an eighth transistor Q8 at the other end of the sixth resistor R6;
a seventh transistor Q7, wherein the collector of the seventh transistor Q7 is connected with the base of an eighth transistor Q8 through a twelfth resistor R12;
an eleventh resistor R11, wherein one end of the eleventh resistor R11 is connected with the base electrode of the seventh transistor Q7, and the other end is connected with the emitter electrode of the seventh transistor Q7 and grounded;
a seventh resistor R7, wherein one end of the seventh resistor R7 is connected with the base of the seventh transistor Q7, and the other end is connected with the first controller (connected with the input of the first controller);
a current fuse F1, a first end of which is connected to the collector of the eighth transistor Q8;
a tenth resistor R10, wherein one end of the tenth resistor R10 is connected to the second end of the current fuse F1, the other end of the tenth resistor R10 is connected to one end of a ninth resistor R9 and one end of an eighth resistor R8, the other end of the ninth resistor R9 is connected to the first controller (connected to the output of the first controller), and the other end of the eighth resistor R8 is connected to the emitter of a seventh transistor Q7;
the capacitor is a filter capacitor, a first end of the capacitor is connected with a second end of the current fuse, a first end of the first capacitor is an output end of the overcurrent protection circuit, and a second end of the capacitor is connected with an emitting electrode of a seventh transistor Q7;
the eighth transistor Q8, the ninth transistor Q9, the second transistor Q2, and the sixth transistor Q6 are PNP transistors, and the other transistors are NPN transistors.
The working principle and the beneficial effects of the technical scheme are as follows: in the above driving control circuit, the second transistor Q2, the fourth transistor Q4, the fifth transistor Q5 and the sixth transistor Q6 form 4 bridge arms, the first transistor Q1 controls the on and off of the fourth transistor Q4 and the sixth transistor Q6, the third transistor Q3 controls the on and off of the second transistor Q2 and the fifth transistor Q5, the driving control circuit is used for driving the driving motor, when the input of the second resistor R2 is high level and the input of the fourth resistor R4 is low level, the second transistor Q5 and the fifth transistor Q5 are on, the fourth transistor Q4 and the sixth transistor Q6 are off, and the driving motor is driven to rotate forward; on the contrary, the driving motor rotates reversely, and the driving circuit is simple and is convenient for driving the driving motor to rotate forwards and backwards;
in the overcurrent protection circuit, an eighth transistor Q8, a ninth transistor Q9, a fifth resistor R5 and a sixth resistor R6 form an overcurrent protection circuit, the fifth resistor R5 and the eighth transistor Q8 supply power to the driving motor, a seventh transistor Q7, an eleventh resistor R11, a seventh resistor R7 and a twelfth resistor R12 form a switch circuit, a voltage feedback circuit formed by the eighth resistor R8, the ninth resistor R9 and the tenth resistor R10 and an output capacitor C1 (which is a filter capacitor); the fuse also plays a role in overcurrent protection, has a faster reaction speed than the triode, can be fused when the instantaneous current is very large, and plays a role in protecting the whole current; when the driving motor is short-circuited to ground, the current flowing through the fifth resistor R5 increases instantaneously, so that the voltage applied across the fifth resistor R5 exceeds the turn-on voltage of the ninth transistor Q9. At this time, the ninth transistor Q9 is turned on, the base voltage of the eighth transistor Q8 is close to the output voltage of the power supply, and the eighth transistor Q8 is turned on; the eighth transistor Q8 then turns off as the voltage between its base and emitter drops below the turn-on voltage, thereby providing overcurrent protection. The fuse F1 also plays a role in overcurrent protection, has a faster response speed than the triode, and can be fused when the instantaneous current is large, so that the whole current is protected. When the first controller outputs a high level signal to the seventh transistor Q7, the seventh transistor Q7 is turned on, and the power output voltage is supplied to the driving motor through the overcurrent protection circuit and the fuse. When the first controller outputs a low level, the seventh transistor Q7 is turned off, and the power supply has no output. The first controller collects feedback voltage through a ninth resistor R9, monitors the voltage output to the driving motor, and if the output voltage is larger, the circuit works normally; when the output voltage is very small, the circuit is short-circuited, the first controller outputs a low level to control the seven-transistor to be closed, the seven-transistor is opened at intervals, and the voltage is monitored until the output voltage is normal. The overcurrent protection circuit is convenient for protecting the drive motor;
the circuit is convenient for drive and overcurrent protection of the drive motor through the drive control circuit and the overcurrent protection circuit, so that the drive motor can reliably drive the traction chain 8, the traction chain 8 drives the conveying equipment to convey, the conveying equipment is convenient to work reliably, and the electrophoresis is carried out on the conveyed materials reliably to ensure the surface quality of the vehicle body 41.
In one embodiment, an electric telescopic air pipe is arranged on the vehicle body connecting clamp 48, a compressed air bottle is fixedly connected to the fixed frame 3, an air outlet of the compressed air bottle is communicated with a fixed end of the electric telescopic air pipe, an electromagnetic valve (preferably, an air pump is also arranged on the electric telescopic air pipe and is electrically connected with a second controller) is connected to the electric telescopic air pipe close to an outlet end of the compressed air bottle, and a position sensor is arranged on the rotating device 4;
as shown in fig. 8, the drying device 7 is further included, and the drying device 7 includes:
a drying chamber 71, wherein the drying chamber 71 is arranged at the top end of the fixing plate 2 (preferably, the bottom ends of both sides of the drying chamber are respectively arranged on the fixing plates at both sides of the supporting seat, preferably, the drying chamber can be arranged on the supporting plate and is positioned at the outermost side of the fixing plate, preferably, the drying chamber can be of a top end opening structure, and only comprises two fixing brackets which are respectively arranged on the two fixing plates); the drying chamber can be arranged on the straight line section of the corresponding turnover guide rail of the fixed plate and is arranged at the tail end of the fixed plate without an immersion groove.
The two air heaters 72 are respectively arranged on the outer walls of two opposite sides of the drying chamber 71, the air heaters are connected with the fixing plate, the air heaters 72 are connected with a first air pipe 73, and the first air pipe 73 penetrates through the outer wall of the supporting seat 1 and extends into the drying chamber 71;
the second air duct 74 is horizontally arranged, the lower end of the second air duct 74 is fixedly connected with the bottom wall of the drying chamber 71, and two ends of the second air duct 74 are respectively fixedly connected with one ends of the two first air ducts 73 in the drying chamber 71; preferably, the first air pipe and the second air pipe are both located below the rotating shaft.
The two third air pipes 75 are respectively and fixedly arranged at the two ends, close to the two ends, of the second air pipe 74, the third air pipes 75 are vertically arranged, and the lower ends of the third air pipes 75 penetrate through the upper end of the second air pipe 74;
a plurality of first flow guide pipes 76 are arranged at the upper ends of the second air pipes 74, and a plurality of second flow guide pipes 77 are arranged at the mutually close sides of the two third air pipes 75;
the temperature sensor is arranged on the inner wall of the drying chamber 71;
the second controller is arranged on the side wall of the supporting seat 1 and connected with an alarm, and the two air heaters 72, the temperature sensor, the electromagnetic valve, the position sensor and the electric telescopic air pipe are respectively and electrically connected with the second controller. Preferably, the controller is connected with a control panel, control parameters of the controller, such as drying time, drying temperature and the like, can be set on the control panel, and the control panel can be provided with control buttons, such as an electromagnetic valve starting control button, a hot air blower 72 starting control button and the like;
the working principle and the beneficial effects of the technical scheme are as follows: the rotating device 4 is provided with a position sensor for detecting the position information of the rotating device 4 (specifically, the position of the rotating shaft 46 can be detected) and transmitting the position information to the second controller, when the rotating device 4 (the rotating shaft 46) turns over and enters the position of the immersion tank 11, the controller controls the electric telescopic air pipe to stretch and retract and extend into the immersion tank 11, the second controller controls the electromagnetic valve to work and introduce compressed air into the electric telescopic air pipe for stirring immersion liquid in the immersion tank 11, so that tank liquid in the immersion tank 11 repeatedly flows in the production process; the problem of uneven concentration caused by long-time storage and precipitation of the immersion liquid is avoided, so that the electrophoresis effect of the vehicle body 41 is good, and the surface coating quality of the vehicle body is improved.
When drying is needed, the vehicle body 41 is conveyed to the drying chamber 71, the second controller controls the hot air blower 72 to work, and the hot air enters the drying chamber 71 through the first air duct 73, the second air duct 74, the third air duct 75, the first flow guide pipe 76 and the second flow guide pipe 77, and the second air duct 74 and the first flow guide pipe 76 can be arranged below the vehicle body 41 for drying; the third air duct 75 and the second draft tube 77 are arranged to dry from two sides of the vehicle body 41; drying from the lower part of the vehicle body 41 and the two sides of the vehicle body 41 is convenient for accelerating the drying of the vehicle body 41; temperature sensor is used for detecting temperature information in drying chamber 71 in the drying chamber 71, and the second controller is equipped with the temperature standard value, and when the temperature value that temperature sensor detected reached the standard value, the alarm was reported to the police to the second controller control alarm, avoids the stoving temperature too high, influences automobile body 41's surface coating quality.
In addition, the descriptions related to the first, the second, etc. in the present invention are only used for description purposes, do not particularly refer to an order or sequence, and do not limit the present invention, but only distinguish components or operations described in the same technical terms, and are not understood to indicate or imply relative importance or implicitly indicate the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions and technical features between various embodiments can be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not be within the protection scope of the present invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (8)
1. An electrophoresis conveying equipment before car, characterized by, includes:
the device comprises a supporting seat (1), wherein a plurality of soaking grooves (11) are formed in the upper end of the supporting seat (1) at intervals along the length direction;
the two fixing plates (2) are fixedly connected to two sides of the upper portion of the supporting seat (1) along the length direction respectively, a righting guide rail (21) is arranged on one fixing plate (2), a first guide rail (22), a second guide rail (23) and a third guide rail (24) are sequentially arranged on the other fixing plate (2) from outside to inside along the width direction of the supporting seat (1), and the righting guide rail (21), the first guide rail (22), the second guide rail (23) and the third guide rail (24) are all arranged along the length direction of the supporting seat (1);
the fixing frame (3) is positioned above the supporting seat (1), the upper end of the fixing frame (3) is fixedly provided with a plurality of rotating devices (4) at intervals along the length direction of the supporting seat (1), the top ends of the rotating devices (4) are detachably connected with a vehicle body (41), the rotating devices (4) are respectively provided with a third guide wheel (42) and a fourth guide wheel device (43) along two sides of the length direction of the supporting seat (1), the third guide wheel (42) and the straightening guide rail (21) move in a matched mode, and the lower end of one side, close to the fourth guide wheel device (43), of each rotating device (4) is also fixedly connected with a fifth guide wheel (45) matched with the third guide rail (24);
the turnover guide rail (5) is positioned on one side of the supporting seat (1) along the length direction and is arranged along the length direction of the supporting seat (1), and the fourth guide wheel device (43) and the turnover guide rail (5) are matched to move so that the rotating device (4) rotates;
the traveling vehicle set (6), the traveling vehicle set (6) is arranged at the bottom end of the rotating device (4), the traveling vehicle set (6) comprises a first guide wheel (61), and the first guide wheel (61) and the second guide rail (23) move in a matched mode;
the traction chain (8) is arranged along the length direction of the supporting seat (1), the lower ends of the two sides of the traction chain (8) along the length direction of the supporting seat (1) are respectively and fixedly connected with a sliding frame (81), the lower end of the sliding frame (81) is fixedly connected with a second guide wheel (82), the second guide wheel (82) is matched with the first guide rail (22) to move, and one side of the fixing frame (3) is provided with a traction pin (31) connected with the traction chain (8);
and the chain driving device is connected with the traction chain (8) and is used for driving the traction chain (8).
2. The automotive pretreatment electrophoresis conveying apparatus according to claim 1,
the rotating device (4) comprises: the rotating shaft (46), the rotating shaft (46) is arranged along the width direction of the supporting seat (1), a first end of the rotating shaft (46) is fixedly connected with a third guide wheel (42), and a second end of the rotating shaft (46) is fixedly connected with a fourth guide wheel device (43); the second connecting support (47) is fixedly connected to the position, close to the second end, of the rotating shaft (46), the lower end of the second connecting support (47) is fixedly connected with the fixing frame (3), and the fifth guide wheel (45) is fixedly connected to one side of the second connecting support (47); and the vehicle body connecting clamp (48) is used for connecting the vehicle body (41), and the vehicle body connecting clamp (48) is arranged on the rotating shaft (46).
3. The automotive pretreatment electrophoresis conveying apparatus according to claim 1,
said fourth guide wheel means (43) comprising: the central part of the connecting plate (431) is fixedly connected with the second end of the rotating shaft (46); the two fourth guide wheels (432) are symmetrically connected to one side, facing the turnover guide rail (5), of the connecting plate (431), and the two fourth guide wheels (432) are positioned on two sides of a rotating shaft (46) parallel to the length direction of the turnover guide rail (5);
the overturning guide rail (5) is opened towards one side of the supporting seat (1), the fourth guide wheel (432) moves in the opening, and the overturning guide rail (5) comprises: a plurality of straightway (51) and a plurality of circular arc section (52) of formula structure as an organic whole, straightway (51) and circular arc section (52) set up along supporting seat (1) length direction interval, and straightway (51) and circular arc section (52) end to end link firmly, the circular arc opening of circular arc section (52) is vertical sets up, the top of straightway (51) is equipped with breach (511).
4. The automotive pretreatment electrophoresis conveying apparatus according to claim 1, wherein the first guide rail (22) is an i-shaped rail, and the second guide wheel (82) rolls on the inner surface of the lower end of the first guide rail (22).
5. The automotive pretreatment electrophoresis conveying apparatus according to claim 2,
the second guide rail (23) is an I-shaped rail, and the number of the first guide wheels (61) is two;
the running vehicle group (6) comprises:
the upper end of the first connecting bracket (62) is detachably connected with the bottom end of the rotating device (4);
the opening of the U-shaped bracket (63) faces downwards vertically, and the upper end of the U-shaped bracket (63) is fixedly connected with the lower end of the first connecting bracket (62);
the two first guide wheels (61) are respectively connected to the inner walls of the two sides of the U-shaped bracket (63), and the two second guide wheels (82) respectively roll on the surfaces of the two sides of the web (231) of the second guide rail (23).
6. The automobile pretreatment electrophoresis conveying equipment as claimed in claim 1, further comprising an inclined strut (25), wherein two ends of the inclined strut (25) are respectively and fixedly connected to the lower end of the fixing plate (2) and the outer side wall of the supporting seat (1).
7. The automotive pretreatment electrophoresis conveying apparatus as claimed in claim 1, wherein the chain driving device comprises: the first controller is connected with the driving motor through a driving control circuit, and the driving motor is also connected with a power supply through an overcurrent protection circuit;
the drive control circuit includes:
one end of the fourth resistor (R4) and one end of the second resistor (R2) are respectively connected with the first controller;
the base of the first transistor (Q1) is connected with the other end of the fourth resistor (R4);
a third transistor (Q3), wherein the base of the third transistor (Q3) is connected with the other end of the second resistor (R2);
a fifth transistor (Q5), wherein the base of the fifth transistor (Q5) is connected with the emitter of the third transistor (Q3), and the emitter of the fifth transistor (Q5) is grounded;
a third resistor (R3), wherein one end of the third resistor (R3) is connected with the collector of the first transistor (Q1);
a sixth transistor (Q6), the base of the sixth transistor (Q6) is connected with the other end of the third resistor (R3), and the collector of the sixth transistor (Q6) is connected with the collector of the fifth transistor (Q5);
a fourth transistor (Q4), wherein the base of the fourth transistor (Q4) is connected with the emitter of the first transistor (Q1), and the emitter of the fourth transistor (Q4) is grounded;
a second transistor (Q2), wherein the collector of the second transistor (Q2) is connected with the collector of a fourth transistor (Q4), and the emitter of the second transistor (Q2) is connected with the emitter of a sixth transistor (Q6) and the output end of the overcurrent protection circuit;
a first resistor (R1), wherein one end of the first resistor (R1) is connected with the base electrode of the second transistor (Q2), and the other end of the first resistor (R1) is connected with the collector electrode of the third transistor (Q3);
the connecting node of the collector of the second transistor (Q2) and the collector of the fourth transistor (Q4) is connected with the driving motor, and the connecting node of the collector of the sixth transistor (Q6) and the collector of the fifth transistor (Q5) is connected with the driving motor;
the overcurrent protection circuit includes:
a fifth resistor (R5), wherein the first end of the fifth resistor (R5) is connected with the driving motor;
a ninth transistor (Q9), wherein an emitter of the ninth transistor (Q9) is connected with a first end of a fifth resistor (R5), and a base of the ninth transistor (Q9) is connected with a second end of the fifth resistor (R5);
an eighth transistor (Q8), wherein an emitter of the eighth transistor (Q8) is connected with the second end of the fifth resistor (R5), and a base of the eighth transistor (Q8) is connected with a collector of the ninth transistor (Q9);
a sixth resistor (R6), wherein one end of the sixth resistor (R6) is connected with the first end of the fifth resistor (R5), and the other end of the sixth resistor (R6) is connected with the base electrode of an eighth transistor (Q8);
a seventh transistor (Q7), wherein the collector of the seventh transistor (Q7) is connected with the base of the eighth transistor (Q8) through a twelfth resistor (R12);
an eleventh resistor (R11), wherein one end of the eleventh resistor (R11) is connected with the base electrode of the seventh transistor (Q7), and the other end of the eleventh resistor (R11) is connected with the emitter electrode of the seventh transistor (Q7) and grounded;
a seventh resistor (R7), wherein one end of the seventh resistor (R7) is connected with the base electrode of a seventh transistor (Q7), and the other end of the seventh resistor (R7) is connected with the first controller;
a current fuse (F1) having a first end connected to the collector of the eighth transistor (Q8);
a tenth resistor (R10), one end of the tenth resistor (R10) is connected to the second end of the current fuse, the other end of the tenth resistor (R10) is connected to one end of a ninth resistor (R9) and one end of an eighth resistor (R8), the other end of the ninth resistor (R9) is connected to the first controller, and the other end of the eighth resistor (R8) is connected to the emitter of a seventh transistor (Q7);
the capacitor (C1), the capacitor (C1) is a filter capacitor (C1), the first end of the capacitor (C1) is connected with the second end of the current fuse, the first end of the first capacitor (C1) is the output end of the overcurrent protection circuit, and the second end of the capacitor (C1) is connected with the emitter of the seventh transistor (Q7);
the eighth transistor (Q8), the ninth transistor (Q9), the second transistor (Q2) and the sixth transistor (Q6) are PNP transistors, and the other transistors are NPN transistors.
8. The automotive pretreatment electrophoresis conveying apparatus according to claim 2,
an electric telescopic air pipe is arranged on the vehicle body connecting clamp (48), a compressed air bottle is fixedly connected to the fixing frame (3), an air outlet of the compressed air bottle is communicated with a fixed end of the electric telescopic air pipe, an electromagnetic valve is connected to the electric telescopic air pipe close to an outlet end of the compressed air bottle, and a position sensor is arranged on the rotating device (4);
still include drying device (7), drying device (7) include:
the drying chamber (71), the drying chamber (71) is arranged at the top end of the fixing plate (2);
the two hot air blowers (72) are respectively arranged on the outer walls of two opposite sides of the drying chamber (71), the hot air blowers (72) are connected with a first air pipe (73), and the first air pipe (73) penetrates through the outer wall of the supporting seat (1) and extends into the drying chamber (71);
the second air pipe (74) is horizontally arranged, the lower end of the second air pipe (74) is fixedly connected with the bottom wall of the drying chamber (71), and two ends of the second air pipe (74) are respectively fixedly connected with one ends, located in the drying chamber (71), of the two first air pipes (73);
the two third air pipes (75) are respectively fixedly arranged at the positions, close to the two ends, of the second air pipe (74), the third air pipes (75) are vertically arranged, and the lower ends of the third air pipes (75) penetrate through the upper ends of the second air pipes (74);
a plurality of first guide pipes (76) are arranged at the upper ends of the second air pipes (74), and a plurality of second guide pipes (77) are arranged at the sides, close to each other, of the two third air pipes (75);
the temperature sensor is arranged on the inner wall of the drying chamber (71);
the second controller is arranged on the side wall of the supporting seat (1), the second controller is connected with an alarm, and the two air heaters (72), the temperature sensor, the electromagnetic valve, the position sensor and the electric telescopic air pipe are electrically connected with the second controller respectively.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911136372.6A CN110791799B (en) | 2019-11-19 | 2019-11-19 | Electrophoresis conveying equipment for pretreatment of automobile |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911136372.6A CN110791799B (en) | 2019-11-19 | 2019-11-19 | Electrophoresis conveying equipment for pretreatment of automobile |
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| CN110791799A true CN110791799A (en) | 2020-02-14 |
| CN110791799B CN110791799B (en) | 2020-10-02 |
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| WO2021000919A1 (en) * | 2019-07-02 | 2021-01-07 | Jiangsu Changhong Intelligent Equipment Co. Ltd. | Apparatus for surface treatment of vehicles or vehicle parts |
| CN115323469A (en) * | 2022-10-17 | 2022-11-11 | 江苏绿能汽配科技有限公司 | Clamp for electrophoretic coating of automobile parts |
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|---|---|
| CN110791799B (en) | 2020-10-02 |
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Effective date of registration: 20230412 Address after: No. 268 Environmental Protection Avenue, Tinghu District, Yancheng City, Jiangsu Province, 224000 Patentee after: JIANGSU CHANGHONG INTELLIGENT EQUIPMENT Co.,Ltd. Address before: Building 6 (28), no.6, environmental protection Avenue, Tinghu District, Yancheng City, Jiangsu Province, 224000 Patentee before: JIANGSU CHANGHONG INTELLIGENT EQUIPMENT Co.,Ltd. Patentee before: JIANGSU CHANGHONG MACHINERY DESIGN INSTITUTE Co.,Ltd. |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A pre-treatment electrophoretic conveying equipment for automobiles Effective date of registration: 20230505 Granted publication date: 20201002 Pledgee: Bank of Communications Co.,Ltd. Yancheng Branch Pledgor: JIANGSU CHANGHONG INTELLIGENT EQUIPMENT Co.,Ltd. Registration number: Y2023980039703 |