A feeding device, control method and feeding system for chip placement machine

Abstract

The present invention relates to a feeding device, control method and feeding system for a placement machine, comprising a frame, a front rail mechanism, a middle rail mechanism and a rear rail mechanism, wherein the front rail module comprises a first front rail and a second front rail arranged along the Y-axis direction, and the first driving assembly comprises a first driving unit and a second driving unit, wherein the first driving unit is used to drive the first front rail, and the second driving unit is used to drive the second front rail to move relative to the first front rail in the Y-axis direction. A feeding device for a placement machine of the present invention, since the front rail module comprises a first front rail and a second front rail arranged along the Y-axis direction, the first driving assembly comprises a first driving unit and a second driving unit, wherein the first driving unit is used to drive the first front rail, and the second driving unit is used to drive the second front rail to move relative to the first front rail in the Y-axis direction, thereby carrying PCB boards of different models by changing the spacing between the first front rail and the second front rail in the Y-axis direction.

Description

Technical Field

[0001] The present invention relates to the technical field of chip mounters, and in particular to a feeding device, a control method and a feeding system for a chip mounter. Background Art

[0002] SMT machine: also known as "mounting machine" or "surface mount system" (Surface Mount System). In the production line, it is configured after the dispensing machine or screen printing machine. It is a device that accurately places surface mount components on the PCB pads by moving the mounting head.

[0003] In the prior art, the conveying module with patent number CN104276378B discloses a conveyor module, which includes a work area module, a shuttle conveyor module, a double-track conveyor module, and a control unit. The work area module includes: a pair of front tracks, forming a front work area; a pair of rear tracks, forming a rear work area parallel to the front work area. The shuttle conveyor module and the double-track conveyor module are selectively combined on one side or both sides of the work area module. The control unit controls the work area module and the shuttle conveyor module and the double-track conveyor module selectively combined with the work area module;

[0004] A dual-track placement machine device with patent number CN 205510576 U is disclosed, which includes a frame, two support base assemblies are arranged on the frame, and a group of tracks are arranged on the support base assemblies; a conveying mechanism, a first drive mechanism, a first sensor and a second sensor are arranged on the track; a top plate mechanism is arranged under the track for supporting the circuit board when the circuit board reaches the mounting position; a crossbeam is also arranged on the frame, and two heads for mounting electronic components and a control computer for controlling the working status of the first sensor, the second sensor, the first drive mechanism and the top plate mechanism are arranged on the crossbeam.

[0005] However, the existing dual-track control of the SMT machine still has problems such as low efficiency and prone to safety failures, which cause the equipment to fail to operate normally or have low production efficiency. This is attributed to the simple control method and low level of intelligence. There are deficiencies in the single-track model troubleshooting and the inability to predict the feeding position, which leads to low efficiency. Summary of the invention

[0006] The first object of the present invention is to provide a feeding device for a placement machine, aiming to solve the problem of low efficiency caused by failure of a single track model.

[0007] In order to solve the above technical problems, a feeding device for a placement machine is provided, comprising a frame, a front rail mechanism, a middle rail mechanism and a rear rail mechanism, wherein the frame is provided with a first working area, a second working area and a third working area arranged adjacent to each other in sequence, wherein the direction from the first working area to the second working area is the X-axis direction, and the direction perpendicular to the X-axis is the Y-axis direction; the front rail mechanism comprises a front rail module, a first driving assembly and a second driving assembly, wherein the front rail module is located in the first working area, the first driving assembly is connected to the frame for driving the front rail module to reciprocate along the Y-axis direction in the first working area, and the second driving assembly is connected to the front rail module for transferring the PCB board in the front rail module from the first working area to the second working area along the X-axis direction; the middle rail mechanism comprises at least two middle rail modules and a first driving assembly. three driving components, any of the middle rail modules is located in parallel along the Y-axis direction in the second working area, and is used to receive the PCB board of the front rail module, and the third driving module is respectively connected to one of the middle rail modules for transferring the PCB board in the middle rail module from the second working area to the third working area along the X-axis direction; the rear rail mechanism includes a rear rail module, a fourth driving component and a fifth driving component, the rear rail module is located in the third working area, the fourth driving component is connected to the frame for driving the rear rail module to reciprocate along the Y-axis direction in the third working area, the rear rail module is used to receive the PCB board in any of the middle rail modules, and the fifth driving module is connected to the rear rail module for transferring the PCB board in the rear rail module away from the third working area along the X-axis direction;

[0008] Among them, the front rail module includes a first front rail and a second front rail arranged in parallel along the Y-axis direction, the first driving assembly includes a first driving unit and a second driving unit, the first driving unit is connected to the frame for driving the first front rail, and the second driving unit is connected to the second front rail for driving the second front rail to move toward the Y-axis direction relative to the first front rail, so as to change the distance between the first front rail and the second front rail in the Y-axis direction to carry PCB boards of different models.

[0009] Further, the first driving unit includes a first driving source, a first driving wheel, a transmission belt, a first transmission wheel, a clamping plate and a connecting plate, the transmission wheel is hinged to one end of the frame along the Y-axis away from the first driving wheel, the first driving source is connected to the frame for driving the first driving wheel, the first driving wheel drives the first transmission wheel through the transmission belt, one end of the clamping plate is fixedly connected to one side of the transmission belt, and the other end of the clamping plate is connected to the connecting plate, the connecting plate is connected to the first front rail, and when the first driving source rotates, the first driving wheel flexibly drives the first front rail through the transmission belt to move the first front rail in the Y-axis direction.

[0010] Furthermore, the second driving unit includes a second driving source, a second driving wheel, a second transmission wheel and a mounting plate, the mounting plate is fixedly connected to one end of the second front rail, the second driving source is connected to the mounting plate for driving the second driving wheel, two second transmission wheels are respectively hinged to the mounting plate along the Y-axis direction, and the second transmission wheels are located on both sides of the second driving wheel, one side of the transmission belt surrounds and passes between the second driving wheel and the second transmission wheel, and the second transmission wheel forces the transmission belt to abut against the second driving wheel, and when the second driving source rotates, the second driving wheel moves relative to the transmission belt, so that the second front rail moves in the Y-axis direction to adjust the distance relative to the first front rail.

[0011] Furthermore, the front rail module also includes a first shading sheet and a first sensor, the first shading sheet is connected to one side of the second front rail toward the first front rail, and the first sensor is located on the first front rail to sense the first shading sheet to limit the collision between the first front rail and the second front rail.

[0012] Furthermore, the front rail module also includes a second shading sheet and a second sensor, the second shading sheet is connected to a side of the second front rail away from the first front rail, the second sensor is connected to the end of the rack in the Y-axis direction for sensing the second shading sheet, and when the second front rail moves to the end of the rack, the second front rail adjusts the distance from the first front rail through the second driving wheel to adapt to carrying different types of PCB boards.

[0013] Further, the second drive assembly includes a third drive unit and a fourth drive unit, the third drive unit also includes a third drive source, a third driving wheel, a third transmission wheel, a third driven wheel and a conveyor belt, the two third drive sources are respectively connected to the two sides of the first front track and the second front track, the third drive source drives the third driving wheel to assist the conveyor belt through the third transmission wheel and the third driven wheel, so that the conveyor belt carries the PCB board to the middle rail module interface, the fourth drive unit includes a detector and a driving cylinder, the detector and the driving cylinder are connected to the second front track, the detector is used to detect the condition of the PCB board carried in the first working area, and the driving cylinder is used to lift the PCB board, so that the PCB board is separated from the first working area and waits to enter the second working area.

[0014] Further, the two third transmission wheels are respectively hinged at two ends of the first front rail along the X-axis direction, the two third driven wheels are hinged at one side of the first front rail at intervals along the X-axis direction, and the two third driven wheels are located between the two third transmission wheels, the third driving wheel is located below the two third driven wheels, and the conveyor belt surrounds the third driving wheel, the third transmission wheel and the third driven wheel, so that the conveyor belt drives the PCB from the first working area to the second working area along the X-axis direction.

[0015] The second object of the present invention is to provide a feeding control method for a placement machine, aiming to solve the problems of the simplicity of the track control method and the low degree of intelligent control.

[0016] In order to solve the above technical problems, a feeding control method for a placement machine is provided, wherein the placement machine feeding device further comprises a detection mechanism and a control center, wherein the detection mechanism is connected to the frame and is located above the middle rail module, and when the detection mechanism detects that the second working area of ​​any middle rail module is unloaded, the detection mechanism sends a detection signal to the control center, and the control center controls the front rail module loaded with a PCB board to dock with the middle rail module, and the front rail module transfers the PCB board from the first working area to the second working area;

[0017] When the detection mechanism detects that any of the middle rail modules has completed processing of the PCB board in the second working area, the control center controls the rear rail module to load and dock with the middle rail module, and the middle rail module transfers the PCB board from the second working area to the third working area;

[0018] When the detection mechanism detects that the second working area of ​​any of the middle rail modules fails, the control center controls the front rail module and the rear rail module to remain docked with the middle rail module that is working normally.

[0019] Furthermore, the placement machine feeding device also includes a predictor, the predictor connector is connected to the mechanism, and the predictor is located above the middle rail module. When the detection mechanism detects that the second working area of ​​any middle rail module carries a PCB board, the predictor starts timing and sets the predicted PCB board completion time. The control center presets the front rail module loaded with the PCB board to move and dock with the middle rail module.

[0020] The third object of the present invention is to provide a feeding system for a placement machine, aiming to solve the problem of improving production efficiency by integrating the track system.

[0021] In order to solve the above technical problems, a chip placement machine feeding system is provided, comprising at least three chip placement machine feeding devices for splicing, wherein at least one of the front rail mechanisms comprises at least two front rail modules, and at least one of the rear rail mechanisms comprises at least two rear rail modules.

[0022] Implementing the embodiments of the present invention will have the following beneficial effects:

[0023] 1. The placement machine feeding device in this embodiment, since the front rail module includes a first front rail and a second front rail arranged in parallel along the Y-axis direction, the first driving assembly includes a first driving unit and a second driving unit, the first driving unit is connected to the frame for driving the first front rail, and the second driving unit is connected to the second front rail for driving the second front rail to move relative to the first front rail toward the Y-axis direction, so that different types of PCB boards are carried by changing the spacing between the first front rail and the second front rail in the Y-axis direction, and then the PCB boards in the front rail module are transferred from the first working area to the second working area along the X-axis direction, thereby overcoming the problems of single feeding type and low switching transportation efficiency of the placement machine double-track control in the prior art;

[0024] 2. In the SMT feeding device of the present embodiment, since the first transmission wheel is hinged to one end of the frame away from the first driving wheel along the Y-axis, the first driving source is connected to the frame for driving the first driving wheel, the first driving wheel drives the first transmission wheel through the transmission belt, the clamping plate is fixedly connected to one side of the transmission belt, and the clamping plate is connected to the first front track, so that when the first driving source rotates, the first driving wheel flexibly drives the first front track through the transmission belt, thereby making the first front track move in the Y-axis direction, so that the first front track can be flexibly and efficiently connected to the middle rail module; in addition, the two second transmission wheels are respectively hinged to the mounting plate along the Y-axis direction, the second transmission wheels are located on both sides of the second driving wheel, one side of the transmission belt surrounds and passes between the second driving wheel and the second transmission wheel, and the second transmission wheel forces the transmission belt to abut against the second driving wheel, so that when the second driving source rotates, the second driving wheel moves relative to the transmission belt, so that the second front track moves in the Y-axis direction to adjust the distance relative to the first front track to adapt to different types of PCB boards;

[0025] 3. In the SMT feeding device of this embodiment, since the first shading sheet is connected to one side of the second front track toward the first front track, the first sensor is located on the first front track for sensing the first shading sheet, thereby limiting the collision between the first front track and the second front track; since the second shading sheet is connected to one side of the second front track away from the first front track, the second sensor is connected to the end of the frame in the Y-axis direction for sensing the second shading sheet, so that when the second front track moves to the end of the frame, the second front track adjusts the distance with the first front track through the second driving wheel to adapt to carry PCB boards of different models;

[0026] 4. In the present embodiment, the feeding control method of the placement machine is that the detection mechanism is connected to the frame and is located above the middle rail module. When the detection mechanism detects that the second working area of ​​any middle rail module is unloaded, the detection mechanism sends the detection information to the control center, and the control center controls the front rail module loaded with the PCB board to dock with the middle rail module, so that the front rail module transfers the PCB board from the first working area to the second working area; when the detection mechanism detects that the PCB processing of the second working area of ​​any middle rail module is completed, the control center controls the rear rail module to load and dock with the middle rail module, and the middle rail module transfers the PCB board from the second working area to the third working area; when the detection mechanism detects that the second working area of ​​any middle rail module fails, the control center controls the front rail module and the rear rail module to keep docking with the middle rail module in normal operation;

[0027] 5. The SMT feeding system in this embodiment is composed of at least three SMT feeding devices spliced ​​together, and at least one front rail mechanism includes at least two front rail modules, and at least one rear rail mechanism includes at least two rear rail modules, so that the flow-type processing efficiency of PCB boards can be improved through multiple SMT feeding devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 It is a structural schematic diagram of a first viewing angle of a feeding device for a chip mounter according to a first embodiment of the present invention;

[0030] Figure 2 A top view of the feeding device for a chip mounter according to the first embodiment of the present invention;

[0031] Figure 3 It is a structural schematic diagram of the second viewing angle of the feeding device of the chip mounter according to the first embodiment of the present invention;

[0032] Figure 4 This is a structural schematic diagram of the first perspective of the SMT feeding device according to the first embodiment of the present invention without the frame;

[0033] Figure 5 for Figure 4 A partial enlarged view of the middle A;

[0034] Figure 6 It is a structural schematic diagram of the second viewing angle of the mounting machine feeding device according to the first embodiment of the present invention without the frame;

[0035] Figure 7 for Figure 6 A partial enlarged view of point B in the middle;

[0036] Figure 8 This is a schematic structural diagram of the front rail mechanism according to the first embodiment of the present invention;

[0037] Fig. 9 for Figure 8 A partial enlarged view of point C in the middle;

[0038] Fig.10 This is a top view of the placement machine feeding system described in Example 3 of the present invention.

[0039] Among them: 100, SMT feeding device; 110, frame; 111, first working area; 112, second working area; 113, third working area; 120, front rail mechanism; 121, front rail module; 1211, first front rail; 1212, second front rail; 1213, first shading sheet; 1214, first sensor; 1215, second shading sheet; 1216, second sensor; 122, first driving assembly; 1221, first driving unit; 12212, first driving wheel; 12213, transmission belt; 12214, first driving wheel; 12215, clamping plate; 12216, connecting plate; 1222, second driving unit; 12221, second driving source; 1222 2. Second driving wheel; 12223. Second transmission wheel; 12224. Mounting plate; 123. Second driving assembly; 1231. Third driving unit; 12311. Third driving source; 12312. Third driving wheel; 12313. Third transmission wheel; 12314. Third driven wheel; 12315. Conveyor belt; 1232. Fourth driving unit; 12321. Detector; 12322. Driving cylinder; 130. Middle rail mechanism; 131. Middle rail module; 132. Third driving assembly; 140. Rear rail mechanism; 141. Rear rail module; 142. Fourth driving assembly; 143. Fifth driving assembly; 150. Detection mechanism; 160. Predictor; 10. SMT feeding system. DETAILED DESCRIPTION

[0040] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0041] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention belongs. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0043] Embodiment 1

[0044] Please refer to Figure 1-Figure 9 , Embodiment 1 of the present invention provides a placement machine feeding device 100, including a frame 110, a front rail mechanism 120, a middle rail mechanism 130 and a rear rail mechanism 140, the frame 110 is provided with a first working area 111, a second working area 112 and a third working area 113 arranged adjacent to each other in sequence, the direction from the first working area 111 to the second working area 112 is the X-axis direction, and the direction perpendicular to the X-axis is the Y-axis direction; the front rail mechanism 120 includes a front rail module 121, a first driving component 122 and a second driving component 123, the front rail module 121 is located in the first working area 111, the first driving component 122 is connected to the frame 110 for driving the front rail module 121 to reciprocate along the Y-axis direction in the first working area, and the second driving component 123 is connected to the front rail module 121 for transferring the PCB board in the front rail module 121 from the first working area 111 to the second working area 112 along the X-axis direction; the middle rail mechanism 130 includes to At least two middle rail modules 131 and a third driving assembly 132, any middle rail module 131 is located in parallel with the second working area 112 along the Y-axis direction, and is used to receive the PCB board of the front rail module 121, and the third driving module is respectively connected to one middle rail module 131 for transferring the PCB board in the middle rail module 131 from the second working area 112 to the third working area 113 along the X-axis direction; the rear rail mechanism 140 includes a rear rail module 141, a fourth driving assembly 142 and a fifth driving assembly 143, the rear rail module 141 is located in the third working area 113, the fourth driving assembly 142 is connected to the frame 110 for driving the rear rail module 141 to reciprocate along the Y-axis direction in the third working area, the rear rail module 141 is used to receive the PCB board in any middle rail module 131, and the fifth driving module is connected to the rear rail module 141 for transferring the PCB board in the rear rail module 141 away from the third working area 113 along the X-axis direction;

[0045] Among them, the front rail module 121 includes a first front rail 1211 and a second front rail 1212 arranged in parallel along the Y-axis direction, the first driving assembly 122 includes a first driving unit 1221 and a second driving unit 1222, the first driving unit 1221 is connected to the frame 110 for driving the first front rail 1211, and the second driving unit is connected to the second front rail 1212 for driving the second front rail 1212 to move toward the Y-axis direction relative to the first front rail 1211, so as to change the distance between the first front rail 1211 and the second front rail 1212 in the Y-axis direction to carry different types of PCB boards. In a specific application, the frame 110 is provided with a first working area 111, a second working area 112 and a third working area 113 arranged adjacent to each other in the X-axis direction, the front rail module 121 is located in the first working area 111, the first driving component 122 is connected to the carrier frame 110 to drive the front rail module 121 to reciprocate along the Y-axis direction in the first working area, and the second driving component 123 is connected to the front rail module 121 to transfer the PCB board in the front rail module 121 from the first working area 111 to the second working area 112 along the X-axis direction. At least two middle rail modules 131 are parallelly located in the second working area 112 along the Y-axis direction and are used to receive the PCB board of the front rail module 121. The third driving module is respectively connected to one middle rail module 131 and is used to transport the PCB board in the middle rail module 131 from the second working area 112 to the third working area 113 along the X-axis direction. The rear rail module 141 is located in the third working area 113. The fourth driving assembly 142 is connected to the frame 110 and is used to drive the rear rail module 141 to reciprocate along the Y-axis direction in the third working area. The module 141 is used to receive the PCB board of any middle rail module 131, and the fifth driving module is connected to the rear rail module 141 to transfer the PCB board in the rear rail module 141 along the Y-axis direction to leave the third working area 113. In addition, since the front rail module 121 includes a first front rail 1211 and a second front rail 1212 arranged in parallel along the Y-axis direction, the first driving assembly 122 includes a first driving unit 1221 and a second driving unit 1222, and the first driving unit 1221 is connected to the frame 110 to drive the first front rail 1211, the second driving unit is connected to the second front rail 1212 and is used to drive the second front rail 1212 to move in the Y-axis direction relative to the first front rail 1211, so as to carry different types of PCB boards by changing the distance between the first front rail 1211 and the second front rail 1212 in the Y-axis direction, thereby making the PCB boards in the front rail module 121 be transferred from the first working area 111 to the second working area 112 along the X-axis direction, thereby overcoming the problems of single loading model and low switching transportation efficiency of the dual-track control of the placement machine in the prior art.

[0046] In a feasible embodiment, the first driving unit 1221 includes a first driving source (not shown), a first driving wheel 12212, a transmission belt 12213, a first transmission wheel 12214, a clamping plate 12215 and a connecting plate 12216. The transmission wheel is hinged to one end of the frame 110 away from the first driving wheel 12212 along the Y-axis. The first driving source is connected to the frame 110 for driving the first driving wheel 12212. The first driving wheel 12212 drives the first transmission wheel 12214 through the transmission belt 12213. One end of the clamping plate 12215 is fixedly connected to one side of the transmission belt 12213, and the other end of the clamping plate 12215 is connected to the connecting plate 12216. The connecting plate 12216 is connected to the first front rail 1211. When the first driving source rotates, the first driving wheel 12212 flexibly drives the first front rail 1211 through the transmission belt 12213 to move the first front rail 1211 in the Y-axis direction. In specific applications, since the transmission wheel is hinged to one end of the frame 110 along the Y-axis away from the first driving wheel 12212, the first driving source is connected to the frame 110 to drive the first driving wheel 12212, and the first driving wheel 12212 drives the first transmission wheel 12214 through the transmission belt 12213. One end of the clamping plate 12215 is fixedly connected to one side of the transmission belt 12213, and the other end of the clamping plate 12215 is connected to the connecting plate 12216, and the connecting plate 12216 is connected to the first front rail 1211. When the first driving source rotates, the first driving wheel 12212 flexibly drives the clamping plate 12215 through the transmission belt 12213, thereby driving the first front rail 1211 to move in the Y-axis direction, so that the first front rail 1211 can flexibly and efficiently dock with the middle rail module 131.

[0047] In a feasible embodiment, the second driving unit 1222 includes a second driving source 12221, a second driving wheel 12222, a second transmission wheel 12223 and a mounting plate 12224, wherein the mounting plate 12224 is fixedly connected to one end of the second front track 1212, the second driving source 12221 is connected to the mounting plate 12224 for driving the second driving wheel 12222, and the two second transmission wheels 12223 are respectively hinged to the mounting plate 12224 along the Y-axis direction, and the second transmission wheel 12224 is fixedly connected to the mounting plate 12224. 2223 is located on both sides of the second driving wheel 12222, one side of the transmission belt 12213 surrounds and passes between the second driving wheel 12222 and the second transmission wheel 12223, and the second transmission wheel 12223 forces the transmission belt 12213 to abut against the second driving wheel 12222. When the second driving source 12221 rotates, the second driving wheel 12222 moves relative to the transmission belt 12213, so that the second front rail 1212 moves in the Y-axis direction to adjust the distance relative to the first front rail 1211. In a specific application, since the two second transmission wheels 12223 are respectively hinged to the mounting plate 12224 along the Y-axis direction, the second transmission wheels 12223 are located on both sides of the second driving wheel 12222, one side of the transmission belt 12213 surrounds and passes between the second driving wheel 12222 and the second transmission wheel 12223, and the second transmission wheel 12223 is tensioned and clamped so that the transmission belt 12213 abuts against the second driving wheel 12222. Therefore, when the second driving source 12221 rotates, the second driving wheel 12222 moves relative to the transmission belt 12213, so that the second front rail 1212 moves in the Y-axis direction to adjust the distance relative to the first front rail 1211 to adapt to the transportation of PCB boards of different models.

[0048] In a feasible embodiment, the front rail module 121 further includes a first shading sheet 1213 and a first sensor 1214. The first shading sheet 1213 is connected to a side of the second front rail 1212 facing the first front rail 1211. The first sensor 1214 is located on the first front rail 1211 to sense the first shading sheet 1213, so as to limit the collision between the first front rail 1211 and the second front rail 1212. In a specific application, since the first shading sheet 1213 is connected to a side of the second front rail 1212 facing the first front rail 1211, the first sensor 1214 is located on the first front rail 1211 to sense the first shading sheet 1213. The first sensor 1214 is a photoelectric sensor. When the first shading sheet 1213 is inserted into the first sensor 1214, the first front rail 1211 stops approaching the second front rail 1212, so as to avoid the collision between the first front rail 1211 and the second front rail 1212.

[0049] In a feasible embodiment, the front rail module 121 also includes a second shading sheet 1215 and a second sensor 1216. The second shading sheet 1215 is connected to one side of the second front rail 1212 away from the first front rail 1211. The second sensor 1216 is connected to the end of the rack 110 in the Y-axis direction for sensing the second shading sheet 1215. When the second front rail 1212 moves to the end of the rack 110, the second front rail 1212 adjusts the distance from the first front rail 1211 through the second active wheel 12222 to adapt to carrying different types of PCB boards. In a specific application, since the second shading sheet 1215 is connected to one side of the second front rail 1212 away from the first front rail 1211, the second sensor 1216 is connected to the end of the frame 110 in the Y-axis direction for sensing the second shading sheet 1215. Therefore, when the second front rail 1212 moves to the end of the frame 110, the second front rail 1212 adjusts the moving distance with the transmission belt 12213 through the second driving wheel 12222, thereby making the spacing of the first front rail 1211 adaptable to carrying different types of PCB boards.

[0050] In a feasible embodiment, the second driving assembly 123 includes a third driving unit 1231 and a fourth driving unit 1232, the third driving unit 1231 also includes a third driving source 12311, a third driving wheel 12312, a third transmission wheel 12313, a third driven wheel 12314 and a conveyor belt 12315, the two third driving sources 12311 are respectively connected to the first front track 1211 and the second front track 1212 on both sides, the third driving source 12311 drives the third driving wheel 12312 through the third transmission wheel 12313 and The third driven wheel 12314 assists the conveyor belt 12315 to enable the conveyor belt 12315 to carry the PCB board to the interface of the middle rail module 131. The fourth driving unit 1232 includes a detector 12321 and a driving cylinder 12322. The detector 12321 and the driving cylinder 12322 are connected to the second front rail 1212. The detector 12321 is used to detect the status of the PCB board carried by the first working area 111. The driving cylinder 12322 is used to lift the PCB board so that the PCB board is separated from the first working area 111 and waits to enter the second working area 112. In a specific application, in order to improve the transportation stability of the PCB board carried in the first working area 111, the two third driving sources 12311 are respectively connected to the two sides of the first front rail 1211 and the second front rail 1212. The third driving source 12311 drives the third active wheel 12312 to assist the conveyor belt 12315 in transmitting the PCB board through the third transmission wheel 12313 and the third driven wheel 12314, so that the conveyor belt 12315 carries the PCB board to the interface of the middle rail module 131, and then the detector 12321 is used to detect the status of the PCB board carried by the first working area 111. When the PCB board needs to be separated from the first working area 111, the driving cylinder 12322 lifts the PCB board, so that the PCB board is separated from the first working area 111 and enters the second working area 112 through the middle rail module 131, thereby improving the transfer efficiency of the PCB board between the first working area 111 and the second working area 112 and the loading and unloading efficiency of the first working area 111.

[0051] In a feasible embodiment, the two third transmission wheels 12313 are respectively hinged at the two ends of the first front rail 1211 along the X-axis direction, the two third driven wheels 12314 are hinged at one side of the first front rail 1211 at intervals along the X-axis direction, and the two third driven wheels 12314 are located between the two third transmission wheels 12313, the third driving wheel 12312 is located below the two third driven wheels 12314, and the conveyor belt 12315 surrounds the third driving wheel 12312, the third transmission wheel 12313 and the third driven wheel 12314, so that the conveyor belt 12315 drives the PCB from the first working area 111 to the second working area 112 along the X-axis direction. In a specific application, in order to smoothly deliver the PCB from the first working area 111 to the second working area 112, the two third transmission wheels 12313 are respectively hinged to the two ends of the first front rail 1211 along the X-axis direction, and the two third driven wheels 12314 are hinged to one side of the first front rail 1211 at intervals along the X-axis direction, and the two third driven wheels 12314 are located between the two third transmission wheels 12313, and the third driving wheel 12312 is located below the two third driven wheels 12314, and the conveyor belt 12315 surrounds the third driving wheel 12312, the third transmission wheel 12313 and the third driven wheel 12314, the PCB board moves into the second working area 112 through the conveyor belt, wherein the transmission structure of the third drive component 132 in the middle rail mechanism 130 is the same as the third drive unit 1231. When the PCB is processed in the second working area 112, it will be transmitted to the third working area 113 of the rear rail module 141 through the third drive component 132 to wait for unloading, wherein the structure of the rear rail module 141 is the same as that of the front rail module 121, the fourth drive component 142 has the same operating mechanism as the first drive component 122, and the fifth drive component 143 has the same operating mechanism as the second drive component 123.

[0052] Embodiment 2

[0053] The subject matter protected by this embodiment is different from that of the first embodiment, and the specific differences are as follows:

[0054] Please refer to Figure 1-Figure 9 , Embodiment 2 of the present invention provides a feeding control method for a placement machine, wherein the placement machine feeding device 100 further comprises a detection mechanism 150 and a control center, wherein the detection mechanism 150 is connected to the frame 110, and the detection mechanism 150 is located above the middle rail module 131, and when the detection mechanism 150 detects that the second working area 112 of any middle rail module 131 is unloaded, the detection mechanism 150 sends a detection signal to the control center, and the control center controls the front rail module 121 loaded with a PCB board to dock with the middle rail module 131, and the front rail module 121 transfers the PCB board from the first working area 111 to the second working area 112;

[0055] When the detection mechanism 150 detects that any middle rail module 131 has completed processing of the PCB board in the second working area 112, the control center controls the rear rail module 141 to load and dock the middle rail module 131, and the middle rail module 131 transfers the PCB board from the second working area 112 to the third working area 113;

[0056] When the detection mechanism 150 detects that the second working area 112 of any middle rail module 131 fails, the control center controls the front rail module 121 and the rear rail module 141 to remain docked with the middle rail module 131 that is working normally. In a specific application, when the detection mechanism 150 detects that the second working area 112 of any middle rail module 131 is unloaded, the detection mechanism 150 sends a detected unloaded signal to the control center, and the control center controls the front rail module 121 loaded with PCB boards to dock with the middle rail module 131, and the front rail module 121 transfers the PCB boards from the first working area 111 to the second working area 112, so that the placement machine feeding device 100 can be quickly and accurately automatically loaded; when the detection mechanism 150 detects that the PCB board processing in the second working area 112 of any middle rail module 131 is completed, the control center controls the rear rail module 141 to dock with the PCB board loaded with the middle rail module 131, and the middle rail module 131 transfers the PCB board from the second working area 112 to the third working area Area 113, thereby accurately identifying the completion status of the first working area 111 and the second working area 112 in the middle rail module 131 for unloading, thereby improving production efficiency; when the detection mechanism 150 detects that the second working area 112 of any middle rail module 131 fails, the control center controls the front rail module 121 and the rear rail module 141 to remain docked with the normally working middle rail module 131, so that when part of the second working area 112 in the middle rail module 131 fails or works abnormally, the control center can select the front rail module 121 and the rear rail module 141 to remain docked with the normally working second working area 112 in the middle rail module 131, so as to avoid local failures affecting the normal production operation of the placement machine feeding device 100, thereby avoiding work delays due to maintenance operations.

[0057] In a feasible embodiment, the placement machine feeding device 100 also includes a predictor 160, the predictor 160 connector is connected to the mechanism, and the predictor is located above the middle rail module 131. When the detection mechanism 150 detects that the second working area 112 of any middle rail module 131 carries a PCB board, the predictor starts timing and sets the predicted PCB board completion time. The control center presets the front rail module 121 loaded with the PCB board to move and dock with the middle rail module 131. In a specific application, when the detection mechanism 150 detects that the second working area 112 of any middle rail module 131 carries a PCB board, the predictor starts timing and sets the predicted completion time of the PCB board. The control center presets the front rail module 121 loaded with the PCB board to move and dock with the middle rail module 131. In this way, the predictor can predict in advance the completion time of the PCB board processing in the middle rail module 131, so that the controller can control the front rail module 121 loaded with the PCB board to move and dock with the middle rail module 131 in advance to transport the PCB board, thereby improving the production rhythm. Of course, the controller can also control the unloaded rear rail module 141 to dock with the middle rail module 131 in advance to unload the PCB board.

[0058] Embodiment 3

[0059] The subject matter protected by this embodiment is different from that of the first embodiment, and the specific differences are as follows:

[0060] Please refer to Fig.10 , Embodiment 3 of the present invention provides a chip placement machine feeding system 10, including at least three chip placement machine feeding devices 100 for splicing, wherein at least one front rail mechanism 120 includes at least two front rail modules 121, and at least one rear rail mechanism 140 includes at least two rear rail modules 141. In specific applications, in order to improve the production rhythm of the chip placement machine feeding system 10, for example, when a large number of PCB board patches are manufactured at the same time, a single chip placement machine feeding device 100 is difficult to meet the time requirements. At the same time, considering the limited space in the actual environment, it is necessary to splice up to three chip placement machine feeding devices 100 to improve the production rhythm. For example, the second working area 112 of the middle rail module 131 of the first chip placement machine feeding device 100 can give priority to processing the patches of PCB boards. If a large number of PCBs are not processed in time, the PCBs can be processed in sequence. The CB boards are distributed to the second and third placement machine feeding devices 100 for placement manufacturing. As a priority, the rear rail mechanism 140 of the first placement machine feeding device 100 includes at least two rear rail modules 141, the front rail mechanism 120 of the second placement machine feeding device 100 includes at least two front rail modules 121, the rear rail mechanism 140 also includes at least two rear rail modules 141, and the front rail mechanism 120 of the third placement machine feeding device 100 includes at least two front rail modules 121, thereby achieving the most efficient mode.

[0061] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A feeding device for a chip mounter, characterized in that: include: A frame, wherein the frame is provided with a first working area, a second working area and a third working area which are arranged adjacent to each other in sequence, wherein the direction from the first working area to the second working area is an X-axis direction, and the direction perpendicular to the X-axis is a Y-axis direction; A front rail mechanism, the front rail mechanism comprising a front rail module, a first drive assembly and a second drive assembly, the front rail module is located in the first working area, the first drive assembly is connected to the frame and is used to drive the front rail module to reciprocate along the Y-axis direction in the first working area, and the second drive assembly is connected to the front rail module and is used to transfer the PCB board in the front rail module from the first working area to the second working area along the X-axis direction; A middle rail mechanism, the middle rail mechanism comprising at least two middle rail modules and a third driving assembly, any of the middle rail modules being located parallel to the second working area along the Y-axis direction and used to receive the PCB board of the front rail module, the third driving module being respectively connected to one of the middle rail modules and used to transfer the PCB board in the middle rail module from the second working area to the third working area along the X-axis direction; A rear rail mechanism, the rear rail mechanism comprising a rear rail module, a fourth drive assembly and a fifth drive assembly, the rear rail module being located in the third working area, the fourth drive assembly being connected to the frame and used for driving the rear rail module to reciprocate along the Y-axis direction in the third working area, the rear rail module being used for receiving a PCB board in any of the middle rail modules, and the fifth drive module being connected to the rear rail module and used for transmitting the PCB board in the rear rail module along the X-axis direction away from the third working area; The front rail module includes a first front rail and a second front rail arranged in parallel along the Y-axis direction, the first driving assembly includes a first driving unit and a second driving unit, the first driving unit is connected to the frame for driving the first front rail, and the second driving unit is connected to the second front rail for driving the second front rail to move relative to the first front rail toward the Y-axis direction, so as to change the distance between the first front rail and the second front rail in the Y-axis direction to carry PCB boards of different models; The first driving unit includes a first driving source, a first driving wheel, a transmission belt, a first driving wheel, a clamping plate and a connecting plate. The first driving wheel is hinged to one end of the frame away from the first driving wheel along the Y-axis. The first driving source is connected to the frame for driving the first driving wheel. The first driving wheel drives the first driving wheel through the transmission belt. One end of the clamping plate is fixedly connected to one side of the transmission belt, and the other end of the clamping plate is connected to the connecting plate. The connecting plate is connected to the first front rail. When the first driving source rotates, the first driving wheel flexibly drives the first front rail through the transmission belt to move the first front rail in the Y-axis direction.

2. The chip mounter feeding device according to claim 1, characterized in that: The second driving unit includes a second driving source, a second driving wheel, a second transmission wheel and a mounting plate, wherein the mounting plate is fixedly connected to one end of the second front rail, the second driving source is connected to the mounting plate for driving the second driving wheel, two second transmission wheels are respectively hinged to the mounting plate along the Y-axis direction, and the second transmission wheels are located on both sides of the second driving wheel, one side of the transmission belt passes around the second driving wheel and the second transmission wheel, and the second transmission wheel forces the transmission belt to abut against the second driving wheel, and when the second driving source rotates, the second driving wheel moves relative to the transmission belt, so that the second front rail moves in the Y-axis direction to adjust the distance relative to the first front rail.

3. The chip mounter feeding device according to claim 1 or 2, characterized in that: The front rail module also includes a first shading sheet and a first sensor. The first shading sheet is connected to one side of the second front rail toward the first front rail. The first sensor is located on the first front rail to sense the first shading sheet to limit the collision between the first front rail and the second front rail.

4. The feeding device for a chip mounter according to claim 2, characterized in that: The front rail module also includes a second shading sheet and a second sensor. The second shading sheet is connected to one side of the second front rail away from the first front rail. The second sensor is connected to the end of the rack in the Y-axis direction for sensing the second shading sheet. When the second front rail moves to the end of the rack, the second front rail adjusts the distance from the first front rail through the second driving wheel to adapt to carrying PCB boards of different models.

5. The chip mounter feeding device according to any one of claims 1 to 2, characterized in that: The second drive assembly includes a third drive unit and a fourth drive unit, the third drive unit also includes a third drive source, a third driving wheel, a third transmission wheel, a third driven wheel and a conveyor belt, the two third drive sources are respectively connected to the two sides of the first front track and the second front track, the third drive source drives the third driving wheel to assist the conveyor belt through the third transmission wheel and the third driven wheel, so that the conveyor belt carries the PCB board to the middle rail module interface, the fourth drive unit includes a detector and a driving cylinder, the detector and the driving cylinder are connected to the second front track, the detector is used to detect the condition of the PCB board carried in the first working area, and the driving cylinder is used to lift the PCB board, so that the PCB board is separated from the first working area and waits to enter the second working area.

6. The chip mounter feeding device according to claim 5, characterized in that: The two third transmission wheels are respectively hinged at the two ends of the first front track along the X-axis direction, the two third driven wheels are hinged at one side of the first front track at intervals along the X-axis direction, and the two third driven wheels are located between the two third transmission wheels, the third driving wheel is located below the two third driven wheels, and the conveyor belt surrounds the third driving wheel, the third transmission wheel and the third driven wheel, so that the conveyor belt drives the PCB from the first working area to the second working area along the X-axis direction.

7. A method for controlling feeding of a chip mounter, characterized in that: Applicable to the placement machine feeding device according to any one of claims 1 to 6: the placement machine feeding device also includes a detection mechanism and a control center, the detection mechanism is connected to the frame, and the detection mechanism is located above the middle rail module, when the detection mechanism detects that the second working area of ​​any middle rail module is unloaded, the detection mechanism sends a detection signal to the control center, the control center controls the front rail module loaded with PCB boards to dock with the middle rail module, and the front rail module transfers the PCB boards from the first working area to the second working area; When the detection mechanism detects that any of the middle rail modules has completed processing of the PCB board in the second working area, the control center controls the rear rail module to load and dock with the middle rail module, and the middle rail module transfers the PCB board from the second working area to the third working area; When the detection mechanism detects that the second working area of ​​any of the middle rail modules fails, the control center controls the front rail module and the rear rail module to remain docked with the middle rail module that is working normally.

8. The method for controlling the feeding of a chip mounter according to claim 7, characterized in that: The placement machine feeding device also includes a predictor, the predictor connector is connected to the mechanism, and the predictor is located above the middle rail module. When the detection mechanism detects that the second working area of ​​any middle rail module carries a PCB board, the predictor starts timing and sets the predicted PCB board completion time. The control center presets the front rail module loaded with the PCB board to move and dock with the middle rail module.

9. A feeding system for a chip mounter, characterized in that: It comprises a placement machine feeding device as described in any one of claims 1 to 6: at least three of the placement machine feeding devices are spliced ​​together, wherein at least one of the front rail mechanisms comprises at least two of the front rail modules, and at least one of the rear rail mechanisms comprises at least two rear rail modules.

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