CN209871758U - PCB screening machine - Google Patents
PCB screening machine Download PDFInfo
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- CN209871758U CN209871758U CN201920613039.9U CN201920613039U CN209871758U CN 209871758 U CN209871758 U CN 209871758U CN 201920613039 U CN201920613039 U CN 201920613039U CN 209871758 U CN209871758 U CN 209871758U
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Abstract
The utility model relates to a PCB screening machine, which comprises a frame; a belt conveying mechanism is arranged on the frame; the PCB screening machine also comprises two groups of storage racks distributed on two sides of the feeding direction of the belt conveying mechanism and two groups of material lifting driving mechanisms which correspond to the storage racks one by one and drive the storage racks to move longitudinally; a plurality of groups of supporting arms for supporting the PCB on the belt conveyor rack are longitudinally arranged on the storage rack; the supporting arm comprises a connecting arm body which is rotationally connected with the storage rack and a supporting arm body which extends outwards along the connecting arm body; one end of the support arm body is fixed with the connecting arm body, and the other end of the support arm body is provided with an obliquely downward avoiding notch; the storage rack is provided with a plurality of groups of grooves which are in one-to-one correspondence with the supporting arms; the groove comprises a limiting groove used for limiting the connecting arm body to rotate downwards and a first avoidance groove used for avoiding the supporting arm body when the supporting arm body rotates upwards; a PCB screening machine capable of quickly taking out a whole stack of defective products and high in production efficiency.
Description
Technical Field
The utility model relates to a sieve separator technical field, more specifically say, relate to a PCB board sieve separator.
Background
PCB board sieve separator is the equipment that PCB board quality was examined commonly used in the process, possesses functions such as conveying, screening and defective products collection, and when the defective products on the conveyer belt were responded to by the material inductor in the frame, the inductor can send signal so that the ascending lifting of storage frame makes progress to collect the defective products, so that concentrate lower frame and subsequent processing. Present storage frame is as shown in fig. 9, and the support lug is rigid, not mobilizable, when having the polylith defective products on the storage frame, only has the defective products of top layer can directly upwards take out, and will take out the defective products below, must transversely take out from the side of storage frame, wastes time and energy, and can't once only take out whole pile of defective products, has greatly reduced production efficiency.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in, to the above-mentioned defect of prior art, a can take out whole fold defective products fast, PCB board sieve separator that production efficiency is high is provided.
The utility model provides a technical scheme that its technical problem adopted is:
constructing a PCB screening machine, which comprises a frame; a belt conveying mechanism is arranged on the rack; the PCB screening machine also comprises two groups of storage racks distributed on two sides of the feeding direction of the belt conveying mechanism, and two groups of material lifting driving mechanisms which correspond to the storage racks one by one and drive the storage racks to move longitudinally; wherein the content of the first and second substances,
a plurality of groups of supporting arms for supporting the PCB on the belt conveyor rack are longitudinally arranged on the storage rack; the supporting arm comprises a connecting arm body which is rotatably connected with the storage rack and a supporting arm body which extends outwards along the connecting arm body; one end of the support arm body is fixed with the connecting arm body, and the other end of the support arm body is provided with an obliquely downward avoiding notch; the storage rack is provided with a plurality of groups of grooves which correspond to the supporting arms one by one; the recess is including being used for the restriction the spacing groove of the connecting arm body rotating downwards, and is used for dodging when the supporting arm body rotates upwards the first groove of dodging of the supporting arm body.
Preferably, the storage rack comprises a plurality of groups of supporting rods which are transversely distributed, an upper transverse plate which is connected with the plurality of groups of supporting rods, and a lower transverse plate which is connected with the plurality of groups of supporting rods; the supporting arm and the groove are arranged on the supporting rod; the lower transverse plate is fixed with and driven by the movable end of the lifting driving mechanism.
Preferably, the belt conveying mechanism comprises a cross beam arranged on the rack and a conveying driving mechanism arranged on the cross beam; the conveying driving mechanism comprises a roller transmission mechanism and two groups of belt transmission mechanisms distributed on two sides of the roller transmission mechanism; the cross beam is provided with a plurality of second avoidance grooves which correspond to the support rods one to one; the roller transmission mechanism is arranged between every two adjacent second avoidance grooves;
the roller transmission mechanism comprises a first rotating shaft penetrating through the cross beam and connected with the cross beam in a rotating mode, and a roller sleeved on the first rotating shaft; the belt transmission mechanism comprises two second rotating shafts which are transversely distributed, and a belt pulley and a first driven chain wheel which are respectively fixed at two ends of each second rotating shaft; the second rotating shaft is rotatably connected with the cross beam; a driven belt for bearing the PCB is arranged on the belt pulley; the belt conveying mechanism also comprises a first motor fixed with the cross beam, a driving chain wheel fixed with the first motor and driven by the first motor, and a driving chain meshed with the driving chain wheel; the first driven sprocket is engaged with the drive chain.
Preferably, the roller transmission mechanism further comprises a second driven sprocket sleeved on the first rotating shaft; the second driven chain wheel is meshed with the driving chain; an installation plate is fixed below the cross beam; a first groove type induction switch and a second groove type induction switch are longitudinally arranged on the mounting plate; the lower transverse plate is fixed with an induction sheet; the rack is also provided with an electric cabinet; the first motor, the first groove type induction switch and the second groove type induction switch are electrically connected with and controlled by the electric control box; when the first groove-shaped induction switch induces the induction sheet, a stop signal is sent to the electric cabinet to control the first motor to stop; when the second groove-shaped induction switch induces the induction sheet, a stop signal is sent to the electric cabinet to control the first motor to stop.
Preferably, the cross beam is further provided with a chain pressing plate corresponding to the driving chain.
Preferably, the storage rack further comprises a first guide rod longitudinally penetrating through the cross beam; the cross beam is provided with a first guide through groove corresponding to the first guide rod; and two ends of the first guide rod are respectively fixed with the upper transverse plate and the lower transverse plate.
Preferably, the lifting driving mechanism comprises an installation frame fixed with the cross beam, a second motor fixed with the installation frame, and a screw rod longitudinally penetrating through the installation frame and rotatably connected with the installation frame; a driving wheel is fixed on a motor shaft of the second motor; a driven wheel is fixed on the screw rod; the material lifting driving mechanism also comprises a transmission belt which is connected with the driving wheel and the driven wheel; the screw rod is rotatably connected with a movable nut; the material lifting driving mechanism also comprises a transmission plate; the movable nut and the lower transverse plate are fixed with the transmission plate.
Preferably, the mounting frame is further provided with a second guide rod; the transmission plate is provided with a second guide through groove corresponding to the second guide rod.
Preferably, the rack is further provided with a first protective cover corresponding to the material lifting driving mechanism and a second protective cover corresponding to the belt conveying mechanism.
The beneficial effects of the utility model reside in that: the belt conveying mechanism drives the PCB to move forward, the material lifting driving mechanism drives the storage racks to move upward after the PCB reaches a specified position, the support arm bodies turn downward under the pressure of the PCB until the support arm bodies are in a horizontal state of being attached to the limiting grooves, the support arm bodies on the two storage racks are matched to lift the PCB on the belt conveying mechanism, the storage work is completed, meanwhile, a storage space is reserved for the subsequent PCB, and a large storage amount is ensured; after the material is fully stored on the storage frame, the PCB at the bottom layer can be upwards lifted, the PCB ascends to push the supporting arm body to upwards turn to enter the first avoidance groove, the PCB can be smoothly taken out, the whole stack of PCBs can be taken out, the material taking is convenient and the material taking efficiency is high, the notch is avoided simultaneously, the space is avoided for the PCB to ascend, the friction between the PCB and the supporting arm body is reduced, and the material taking is more time-saving and labor-saving.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be further described below with reference to the accompanying drawings and embodiments, wherein the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work according to the drawings:
fig. 1 is a schematic view of an overall structure of a PCB screening machine according to a preferred embodiment of the present invention;
fig. 2 is an exploded view of a PCB screening machine according to a preferred embodiment of the present invention (with the frame, the first protective cover and the second protective cover hidden);
FIG. 3 is an enlarged view at A in FIG. 2;
FIG. 4 is an enlarged view taken at A1 in FIG. 3;
fig. 5 is an exploded view of a PCB screening machine according to a preferred embodiment of the present invention (with the frame, the first protective cover and the second protective cover hidden);
FIG. 6 is an enlarged view at B1 in FIG. 5;
fig. 7 is a schematic structural diagram of a support arm in a PCB screening machine according to a preferred embodiment of the present invention;
fig. 8 is a schematic sectional view of a material lifting driving mechanism in a PCB screening machine according to a preferred embodiment of the present invention;
fig. 9 shows a conventional magazine structure.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, a clear and complete description will be given below with reference to the technical solutions of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Fig. 1 shows a PCB screening machine according to a preferred embodiment of the present invention, and fig. 2 to 8 are also shown; comprises a frame 1; the frame 1 is provided with a belt conveying mechanism 100; the PCB screening machine also comprises two groups of storage racks 200 distributed on two sides of the feeding direction of the belt conveying mechanism 100 and two groups of material lifting driving mechanisms 300 which correspond to the storage racks 200 one by one and drive the storage racks to move longitudinally;
a plurality of groups of supporting arms 201 for supporting the PCB on the belt conveyor frame 100 are longitudinally arranged on the storage rack 200; the supporting arm 201 comprises a connecting arm body 202 which is rotatably connected with the storage rack 200, and a supporting arm body 203 which extends outwards along the connecting arm body 202; one end of the support arm body 203 is fixed with the connecting arm body 202, and the other end is provided with an obliquely downward avoiding notch 280; the storage rack 200 is provided with a plurality of groups of grooves 281 corresponding to the supporting arms 201 one by one; the groove 281 comprises a limiting groove 282 for limiting the downward rotation of the connecting arm body 202 and a first avoiding groove 283 for avoiding the supporting arm body 203 when the supporting arm body 203 rotates upward, the belt conveying mechanism 100 drives the PCB to move forward, the material lifting driving mechanism 300 drives the material storage rack 200 to move upward after reaching a specified position, the supporting arm body 203 turns downward under the pressure of the PCB until the supporting arm body is in a horizontal state attached to the limiting groove 282, the supporting arm bodies 203 on the two material storage racks 200 are matched with the PCB lifted up on the belt conveying mechanism 100, the material storage work is completed, and meanwhile, a material storage space is made for subsequent PCB boards, so that a larger material storage amount is ensured; after the material is fully stored on the storage rack 200, the PCB at the bottommost layer can be upwards lifted, the PCB upwards pushes the support arm body 203 to upwards turn and enter the first avoiding groove 283, the PCB can be smoothly taken out, the whole stack of PCBs can be taken out, the material taking is convenient and high in material taking efficiency, the notch 280 is avoided simultaneously, the space is avoided for the PCB to upwards move, the friction between the PCB and the support arm body 203 is reduced, and the material taking is more time-saving and labor-saving.
As shown in fig. 2, 3 and 5, the storage rack 200 includes a plurality of sets of support rods 204 distributed laterally, an upper horizontal plate 205 connecting the plurality of sets of support rods 204, and a lower horizontal plate 206 connecting the plurality of sets of support rods 204; the support rod 204 is provided with a support arm 201 and a groove 281; the lower transverse plate 206 is fixed with and driven by the movable end of the material lifting driving mechanism 300, and a plurality of groups of supporting rods 204 are arranged, so that a plurality of supporting points are provided for the PCB, and the supporting effect is more stable.
As shown in fig. 2, 3 and 5, the belt conveying mechanism 100 includes a cross member 101 provided on the frame 1, and a conveying drive mechanism 102 provided on the cross member 101; the conveying driving mechanism 102 comprises a roller transmission mechanism 103 and two groups of belt transmission mechanisms 104 distributed on two sides of the roller transmission mechanism 103; the beam 101 is provided with a plurality of second avoidance grooves 180 which correspond to the support rods 204 one by one, so that interference on the movement of the support rods 204 is avoided, and meanwhile, the distance between the two support rods 204 is slightly larger than the width of the PCB, so that a certain limiting effect is realized on the PCB when the PCB is lifted; a roller transmission mechanism 103 is arranged between two adjacent second avoidance grooves 180;
the roller transmission mechanism 103 comprises a first rotating shaft penetrating through the cross beam 101 and rotatably connected with the cross beam, and a roller 106 sleeved on the first rotating shaft, wherein the roller 106 provides support for the PCB, and ensures that the PCB continuously moves forwards along the roller 106 under the pushing of the belt transmission mechanism 104 to reach a specified lifting position; the belt transmission mechanism 104 comprises two second rotating shafts which are transversely distributed, and a belt pulley 108 and a first driven sprocket 109 which are respectively fixed at two ends of the second rotating shafts; the second rotating shaft is rotatably connected with the cross beam 101; a driven belt 110 for carrying the PCB is arranged on the belt pulley 108; the belt conveying mechanism 100 further comprises a first motor 111 fixed with the cross beam 101, a drive sprocket fixed with the first motor 111 and driven by the first motor, and a drive chain 113 engaged with the drive sprocket; the first driven sprocket 109 is engaged with the driving chain 113, and the transmission effect is good and the assembly is easy by adopting the chain transmission.
As shown in fig. 5 and 6, the roller transmission mechanism 103 further includes a second driven sprocket 114 disposed on the first shaft; the second driven sprocket 114 is meshed with the driving chain 113 to ensure that the roller 106 has power, and when the PCB is short and the number of the roller transmission mechanisms 103 is large, the condition that the PCB is stopped on the roller transmission mechanisms 103 and cannot reach the designated material lifting position can not occur; a mounting plate 115 is fixed below the cross beam 101; a first groove type induction switch 116 and a second groove type induction switch 117 are longitudinally arranged on the mounting plate 115; the lower transverse plate 206 is fixed with a sensing piece 207; the frame 1 is also provided with an electric cabinet (not shown in the figure); the first motor 111, the first groove type induction switch 116 and the second groove type induction switch 117 are electrically connected with and controlled by the electric control box; when the first groove-shaped induction switch 116 induces the induction sheet 207, a stop signal is sent to the electric cabinet to control the first motor 111 to stop, the first groove-shaped induction switch 116 is located above and controls the highest ascending position of the lower transverse plate 206, and the condition that the lower transverse plate 206 collides with the cross beam 101 due to over-travel motion is avoided; when the second slot-type inductive switch 117 senses the inductive sheet 207, a stop signal is sent to the electric cabinet to control the first motor 111 to stop, the second slot-type inductive switch 117 is located below, and the lowest downward position of the lower transverse plate 206 is controlled, so that the situation that the upper transverse plate 205 collides with the cross beam 101 due to over-travel motion is avoided.
As shown in fig. 5, the cross beam 101 is further provided with a chain pressing plate 118 corresponding to the driving chain 113, so as to ensure that the driving chain 113 and the second driven sprocket 114 are well meshed and have a good transmission effect.
As shown in fig. 2, the magazine 200 further includes a first guide bar 208 longitudinally penetrating the cross member 101; the cross beam 101 is provided with a first guide through groove corresponding to the first guide rod 208; the two ends of the first guide rod 208 are respectively fixed with the upper transverse plate 205 and the lower transverse plate 206, so that the movement of the storage rack 200 is guided, and the movement is more stable and ordered.
As shown in fig. 5 and 8, the lifting driving mechanism 300 includes a mounting frame 301 fixed to the cross beam 101, a second motor 302 fixed to the mounting frame 301, and a screw rod 303 longitudinally penetrating through the mounting frame 301 and rotatably connected thereto; a driving wheel 304 is fixed on a motor shaft of the second motor 302; a driven wheel 305 is fixed on the screw rod 303; the lifting driving mechanism 300 further comprises a transmission belt 306 connecting the driving wheel 304 and the driven wheel 305; the screw rod 303 is rotatably connected with a movable nut 307; the lifting drive mechanism 300 further comprises a drive plate 308; the movable nut 307 and the lower transverse plate 206 are both fixed with the transmission plate 308, and a belt transmission structure is adopted, so that the assembly is easy, and the whole structure is more compact.
As shown in fig. 8, the mounting bracket 301 is further provided with a second guide bar 309; the driving plate 308 is provided with a second guiding through groove corresponding to the second guiding rod 309, so as to guide the movement of the driving plate 308, and make the movement more stable and orderly.
As shown in fig. 1, the frame 1 is further provided with a first protective cover 400 corresponding to the material lifting driving mechanism 300 and a second protective cover 500 corresponding to the belt conveying mechanism 100, so that the screening machine is more attractive as a whole while achieving the dustproof and moistureproof effects.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are considered to be within the scope of the invention as defined by the following claims.
Claims (9)
1. A PCB screening machine comprises a frame; a belt conveying mechanism is arranged on the rack; the PCB screening machine also comprises two groups of storage racks distributed on two sides of the feeding direction of the belt conveying mechanism, and two groups of material lifting driving mechanisms which correspond to the storage racks one by one and drive the storage racks to move longitudinally; it is characterized in that the preparation method is characterized in that,
a plurality of groups of supporting arms for supporting the PCB on the belt conveyor rack are longitudinally arranged on the storage rack; the supporting arm comprises a connecting arm body which is rotatably connected with the storage rack and a supporting arm body which extends outwards along the connecting arm body; one end of the support arm body is fixed with the connecting arm body, and the other end of the support arm body is provided with an obliquely downward avoiding notch; the storage rack is provided with a plurality of groups of grooves which correspond to the supporting arms one by one; the recess is including being used for the restriction the spacing groove of the connecting arm body rotating downwards, and is used for dodging when the supporting arm body rotates upwards the first groove of dodging of the supporting arm body.
2. The PCB screening machine of claim 1, wherein the storage rack comprises a plurality of sets of support rods distributed transversely, an upper transverse plate connecting the plurality of sets of support rods, and a lower transverse plate connecting the plurality of sets of support rods; the supporting arm and the groove are arranged on the supporting rod; the lower transverse plate is fixed with and driven by the movable end of the lifting driving mechanism.
3. The PCB screening machine of claim 2, wherein the belt conveying mechanism comprises a cross beam arranged on the frame, and a conveying driving mechanism arranged on the cross beam; the conveying driving mechanism comprises a roller transmission mechanism and two groups of belt transmission mechanisms distributed on two sides of the roller transmission mechanism; the cross beam is provided with a plurality of second avoidance grooves which correspond to the support rods one to one; the roller transmission mechanism is arranged between every two adjacent second avoidance grooves;
the roller transmission mechanism comprises a first rotating shaft penetrating through the cross beam and connected with the cross beam in a rotating mode, and a roller sleeved on the first rotating shaft; the belt transmission mechanism comprises two second rotating shafts which are transversely distributed, and a belt pulley and a first driven chain wheel which are respectively fixed at two ends of each second rotating shaft; the second rotating shaft is rotatably connected with the cross beam; a driven belt for bearing the PCB is arranged on the belt pulley; the belt conveying mechanism also comprises a first motor fixed with the cross beam, a driving chain wheel fixed with the first motor and driven by the first motor, and a driving chain meshed with the driving chain wheel; the first driven sprocket is engaged with the drive chain.
4. The PCB screening machine of claim 3, wherein the roller transmission mechanism further comprises a second driven sprocket mounted on the first shaft; the second driven chain wheel is meshed with the driving chain; an installation plate is fixed below the cross beam; a first groove type induction switch and a second groove type induction switch are longitudinally arranged on the mounting plate; the lower transverse plate is fixed with an induction sheet; the rack is also provided with an electric cabinet; the first motor, the first groove type induction switch and the second groove type induction switch are electrically connected with and controlled by the electric control box; when the first groove-shaped induction switch induces the induction sheet, a stop signal is sent to the electric cabinet to control the first motor to stop; when the second groove-shaped induction switch induces the induction sheet, a stop signal is sent to the electric cabinet to control the first motor to stop.
5. The PCB screening machine of claim 4, wherein the beam is further provided with a chain pressing plate corresponding to the driving chain.
6. The PCB screening machine of claim 3, wherein the storage rack further comprises a first guide bar extending longitudinally through the cross beam; the cross beam is provided with a first guide through groove corresponding to the first guide rod; and two ends of the first guide rod are respectively fixed with the upper transverse plate and the lower transverse plate.
7. The PCB screening machine of claim 3, wherein the lifting drive mechanism comprises a mounting bracket fixed with the cross beam, a second motor fixed with the mounting bracket, and a screw rod longitudinally penetrating through the mounting bracket and rotatably connected with the mounting bracket; a driving wheel is fixed on a motor shaft of the second motor; a driven wheel is fixed on the screw rod; the material lifting driving mechanism also comprises a transmission belt which is connected with the driving wheel and the driven wheel; the screw rod is rotatably connected with a movable nut; the material lifting driving mechanism also comprises a transmission plate; the movable nut and the lower transverse plate are fixed with the transmission plate.
8. The PCB screening machine of claim 7, wherein a second guide bar is further provided on the mounting frame; the transmission plate is provided with a second guide through groove corresponding to the second guide rod.
9. The PCB screening machine of claim 1, wherein a first protective cover corresponding to the material lifting driving mechanism and a second protective cover corresponding to the belt conveying mechanism are further arranged on the frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920613039.9U CN209871758U (en) | 2019-04-30 | 2019-04-30 | PCB screening machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920613039.9U CN209871758U (en) | 2019-04-30 | 2019-04-30 | PCB screening machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209871758U true CN209871758U (en) | 2019-12-31 |
Family
ID=68963135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920613039.9U Active CN209871758U (en) | 2019-04-30 | 2019-04-30 | PCB screening machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209871758U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116899923A (en) * | 2023-09-13 | 2023-10-20 | 深圳明锐理想科技有限公司 | Screening apparatus |
-
2019
- 2019-04-30 CN CN201920613039.9U patent/CN209871758U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116899923A (en) * | 2023-09-13 | 2023-10-20 | 深圳明锐理想科技有限公司 | Screening apparatus |
| CN116899923B (en) * | 2023-09-13 | 2023-11-24 | 深圳明锐理想科技有限公司 | Screening apparatus |
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