CN215551913U - Correcting mechanism and printing machine - Google Patents
Correcting mechanism and printing machine Download PDFInfo
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- CN215551913U CN215551913U CN202022680975.7U CN202022680975U CN215551913U CN 215551913 U CN215551913 U CN 215551913U CN 202022680975 U CN202022680975 U CN 202022680975U CN 215551913 U CN215551913 U CN 215551913U
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Abstract
The utility model discloses a correcting mechanism and a printing machine, which comprise: a support plate; the working platform is movably arranged on the supporting plate; the correcting assembly is arranged on the supporting plate and is connected with the working platform, and the correcting assembly is used for correcting the position of the working platform on the supporting plate; and the pre-tightening assembly is arranged on one side of the correcting assembly, one end of the pre-tightening assembly is connected with the supporting plate, and the other end of the pre-tightening assembly is connected with the working platform. According to the utility model, the pre-tightening assemblies which correspond to the plurality of correction assemblies one by one are arranged on the supporting plate so as to eliminate gaps in the correction assemblies, so that the correction assemblies can correct the working platform more accurately, the alignment accuracy of the PCB on the working platform and the stencil is improved, and the printing quality of the PCB during solder paste printing is greatly improved.
Description
Technical Field
The utility model relates to the technical field of printing, in particular to a correcting mechanism and a printing machine.
Background
In a solder paste printing apparatus, in order to calibrate the position of a working platform in the printing apparatus, so that a PCB template on the working platform can be accurately aligned with a stencil, a plurality of correction assemblies are generally disposed on the side of the working platform, however, because a hinge pin is machined to have a manufacturing error and a sleeved bearing has a tolerance, when the hinge pin with the tolerance and the bearing are assembled together, the interference is removed, a gap exists between the contact surfaces of the hinge pin and the bearing, when the working platform is corrected by the correction assemblies, a theoretical value of a correction distance and an actual value of the correction distance have a deviation, and a moving distance of the working platform cannot be accurately controlled, thereby reducing printing accuracy.
Accordingly, the prior art is yet to be improved and developed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a gap exists in a correcting component of a printing machine in the prior art and cannot accurately correct a working platform.
In order to solve the technical problems, the technical scheme adopted by the utility model is as follows:
a correction mechanism, comprising:
a support plate;
the working platform is movably arranged on the supporting plate;
the correcting assembly is arranged on the supporting plate and is connected with the working platform, and the correcting assembly is used for correcting the position of the working platform on the supporting plate; and
the pre-tightening assembly is arranged on one side of the correcting assembly, one end of the pre-tightening assembly is connected with the supporting plate, and the other end of the pre-tightening assembly is connected with the working platform.
The aligning mechanism, wherein the pretensioning assembly comprises:
the first tension spring column is connected with the supporting plate;
the second tension spring column is connected with the working platform; and
and one end of the elastic piece is connected with the first tension spring column, and the other end of the elastic piece is connected with the second tension spring column.
The calibration mechanism, wherein the calibration assembly comprises:
the first correcting component is positioned on one side of the working platform;
the second correcting component is positioned on the other side of the working platform, and the second correcting component is perpendicular to the first correcting component.
The calibration mechanism, wherein the first calibration assembly comprises:
a driving device disposed on the support plate;
the screw rod is connected with the driving device; and
the hinge seat is rotationally connected with the screw rod and is in sliding connection with the bearing plate;
and one end of the hinge arm is connected with the hinge seat, and the other end of the hinge arm is connected with the working platform in a sliding manner.
The calibration mechanism, wherein the first calibration assembly further comprises:
a first guide rail provided on the support plate and parallel to the lead screw;
the first guide seat is connected with the hinge seat, and a guide groove matched with the first guide rail is formed in the first guide seat.
The correction mechanism, wherein the hinge mount comprises:
the screw rod connecting part is provided with a sleeve, and the sleeve is provided with an internal thread matched with the external thread of the screw rod;
and the hinge connecting part is connected with the screw rod connecting part and is hinged with the hinge arm.
The correction mechanism, wherein the hinge connection portion includes:
the connecting block is connected with the screw rod connecting part and is positioned on one side of the screw rod connecting part, which faces away from the supporting plate;
the first connecting arm is connected with one side, back to the driving device, of the connecting block;
the second connecting arm is connected with one side, back to the driving device, of the connecting block, and the second connecting arm and the first connecting arm are arranged at intervals; and
one end of the hinge pin is rotatably connected with the first connecting arm, and the other end of the hinge pin is rotatably connected with the second connecting arm;
the hinge arm is located between the first connecting arm and the second connecting arm, and the hinge arm is rotatably connected with the hinge pin.
The correcting mechanism is characterized in that a first through hole is formed in the first connecting arm;
the hinge connection portion further includes:
the first bearing is positioned in the first through hole and sleeved on the hinge pin;
the first fastening nut is sleeved at one end, far away from the second connecting arm, of the hinge pin; and
the first adjusting ring is sleeved on the hinge pin and positioned between the first bearing and the first fastening nut;
the correcting mechanism is characterized in that a second through hole is formed in the second connecting arm;
the hinge connection portion further includes:
the second bearing is positioned in the second through hole and sleeved on the hinge pin;
the second fastening nut is sleeved at one end, far away from the first connecting arm, of the hinge pin; and
and the second adjusting ring is sleeved on the hinge pin and is positioned between the second bearing and the second fastening nut.
A printing press comprising a correction mechanism as claimed in any one of the preceding claims.
Has the advantages that: according to the utility model, the pre-tightening assemblies which correspond to the plurality of correction assemblies one by one are arranged on the supporting plate so as to eliminate gaps in the correction assemblies, so that the correction assemblies can correct the working platform more accurately, the alignment accuracy of the PCB on the working platform and the stencil is improved, and the printing quality of the PCB during solder paste printing is greatly improved.
Drawings
FIG. 1 is a schematic structural view of the calibration mechanism provided in the present invention;
FIG. 2 is a schematic structural view of the pretensioning assembly provided in the present invention;
FIG. 3 is a schematic structural diagram of the first calibration assembly provided in the present invention;
FIG. 4 is an exploded view of the hinge connection provided in the present invention;
Detailed Description
The present invention provides a calibration mechanism and a printing machine, and in order to make the objects, technical schemes and effects of the present invention clearer and clearer, the present invention will be further described in detail below by referring to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It should also be noted that the same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms may be understood by those skilled in the art according to specific circumstances.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
The embodiment provides a correcting mechanism, as shown in fig. 1, the correcting mechanism includes a supporting plate 1 and a working platform 2, the working platform 2 is located above the supporting plate, the working platform 2 is parallel to the supporting plate 1, the working platform 2 is movable relative to the supporting plate 1, a PCB to be printed can be placed on the working platform 2, and the PCB is sent to a printing position by moving the working platform 2. The correcting mechanism further comprises at least one correcting component and a pre-tightening component 3 corresponding to the correcting component, and one side of each correcting component is provided with the pre-tightening component 3; the correcting component is used for correcting the position of the working platform 2 on the supporting plate 1, so that the PCB on the working platform 2 can be accurately moved to a printing position, and the PCB is accurately aligned with the stencil printing plate. One end of the pre-tightening assembly 3 is connected with the supporting plate 1, and the other end of the pre-tightening assembly is connected with the working platform 2; because the hinge joint in the correcting component has a clearance, so that the calibration precision is reduced, the pre-tightening component is arranged to eliminate the clearance in the correcting component, so that the correction precision of the correcting component on the working platform 2 is further improved.
According to the utility model, the pre-tightening assemblies which correspond to the plurality of correction assemblies one by one are arranged on the supporting plate 1 to eliminate gaps existing in the correction assemblies, so that the correction assemblies can correct the working platform 2 more accurately, the alignment accuracy of the PCB on the working platform 2 and the stencil printing plate is improved, and the printing quality of the PCB during solder paste printing is greatly improved.
As shown in fig. 2, the pre-tightening assembly 3 includes a first tension spring column 31, an elastic member 33, and a second tension spring column 32, in a specific embodiment, the elastic member 33 is a tension spring; the first tension spring column 31, the elastic piece 33 and the second tension spring column 32 are sequentially connected, the first tension spring column 31, the elastic piece 33 and the second tension spring column 32 are connected in a Z shape, the end of the first tension spring column 31, which is not connected with the elastic piece 33, is connected with the support plate 1, and the end of the second tension spring column 32, which is not connected with the elastic piece 33, is connected with the working platform 2; the first tension spring column 31 is perpendicular to the support plate 1, the second tension spring column 32 is perpendicular to the working platform 2, the elastic piece 33 is parallel to the support plate 1, and the elastic piece 33 is in a stretched elastic deformation state. Under the action of the elastic element 33, the working platform 2 has a tendency to move relative to the supporting plate 1 toward the correcting assembly corresponding to the pretensioning assembly 3, thereby acting to eliminate the hinge clearance in the correcting assembly.
The plurality of correcting elements comprise a first correcting element 4 and a second correcting element 5, the first correcting element 4 is located on one side of the working platform 2, the second correcting element 5 is located on the other side of the working platform 2, and the second correcting element 5 is perpendicular to the first correcting element 4, in a specific embodiment, the working platform 2 is rectangular, the first correcting element 4 is located on one side of the working platform 2, the second correcting element 5 is located on the other side of the working platform 2, and the second correcting element 5 and the first correcting element 4 are respectively located on two adjacent sides of the working platform 2, in a specific embodiment, the number of the first correcting elements 4 is two to ensure the accuracy of the balance of the calibration, the number of the second correcting elements 5 is one, and the second correcting element 5 and the two first correcting elements 4 are both corresponding to one pre-tightening element 3, the two first correcting assemblies 4 correspond to the two pre-tightening assemblies 3 respectively, and the second correcting assembly 5 corresponds to one pre-tightening assembly 3.
As shown in fig. 3, the first correcting assembly 4 includes a driving device 5, a screw rod 6, a hinge base 7 and a hinge arm 8, the driving device 5 is disposed on the support plate 1, the screw rod 6 is connected to the driving device 5, and the screw rod 6 is parallel to the corresponding elastic member 33 of the pre-tightening assembly 3; the hinge seat 7 is rotationally connected with the screw rod 6, and the hinge seat 7 is connected with the support plate 1 in a sliding manner; one end of the hinge arm 8 is connected with the hinge seat 7, and the other end of the hinge arm is connected with the working platform 2 in a sliding manner. For example, the driving device 5 is a motor, the motor drives the screw rod 6 to rotate, so as to drive the hinge base 7 to move along the screw rod 6, the hinge base 7 further drives the hinge arm 8 to rotate, so that the hinge arm 8 drives the working platform 2 to perform position adjustment. The telescopic direction of the elastic part 33 corresponding to each correction assembly is parallel to the screw rod 6 in the correction assembly, namely, the direction of the hinge arm 8 moving, so that the gap at the hinged position in the hinge seat 8 is eliminated, and a pre-tightening effect is achieved.
The first correcting assembly 4 further comprises a first guide rail 9 and a first guide seat 10, the first guide rail 9 is arranged on the support plate 1, and the first guide rail 9 is parallel to the screw rod 6; the first guide seat 10 is connected with the hinge seat 7, a guide groove matched with the first guide rail 9 is arranged on the first guide seat 10, and the hinge seat 7 is in sliding connection with the support plate 1 through the matching of the first guide rail 9 and the guide groove; and the length of the guide seat is shorter than that of the guide rail, so that the guide seat has enough sliding travel on the guide rail.
The hinge base 7 comprises a screw rod connecting part 71 and a hinge connecting part 72, a sleeve 14 is arranged on the screw rod connecting part 71, an internal thread matched with the external thread of the screw rod 6 is arranged on the inner wall of the sleeve 14, and the screw rod connecting part 71 is rotatably connected with the screw rod 6 through the matching of the internal thread and the external thread; the hinge connection 72 is connected to the spindle connection 71, the hinge connection 72 is located on the side of the spindle connection 71 facing away from the support plate 1, and the hinge connection 72 is hinged to the hinge arm 8.
As shown in fig. 4, the hinge connection 72 includes a connection block 721, a first connection arm 722, a second connection arm 723, and a hinge pin 724, the connection block 721 is connected to the screw connection 71, and the connection block 721 is located on a side of the screw connection 71 facing away from the support plate 1; the first connecting arm 722 is connected with the connecting block 721 at the side opposite to the driving device 5, the second connecting arm 723 and the first connecting arm 722 are arranged on the connecting block 721 at intervals, and the first connecting arm 722 is positioned at the side of the second connecting arm 723 opposite to the supporting plate 1; the hinge pin 724 has one end rotatably connected to the first connecting arm 722 and the other end rotatably connected to the second connecting arm 723, the hinge arm 8 is located between the first connecting arm 722 and the second connecting arm 723, and the hinge arm 8 is rotatably connected to the hinge pin 724.
The first connecting arm 722 is provided with a first through hole 15, the second connecting arm 723 is provided with a second through hole 16, and the hinge connecting portion 72 further comprises a first bearing 725, a first fastening nut 726, a first adjusting ring 727 and a first bearing cover 728; the first bearing 725 is located in the first through hole 15 and sleeved on the hinge pin 724, and preferably, the first bearing 725 is an angular contact bearing, which can simultaneously bear a large radial load and a large axial load, so that the reduction of the correction precision due to an excessively large hinge gap caused by the damage of the bearing is avoided; the first fastening nut 726 is sleeved on one end of the hinge pin 724 far away from the second connecting arm 723 so as to limit the first bearing 725 in the first through hole 15; the first adjusting ring 727 is sleeved on the hinge pin 724 and positioned between the first bearing 725 and the first fastening nut 726, and the first bearing 725 is tightly abutted against the first fastening nut 726 by arranging the first adjusting ring 727; the first bearing cap 728 is disposed on a side of the first connecting arm 722 facing away from the second connecting arm 723, and the first bearing cap 728 and the first fastening nut 726 are located on a same side of the first connecting arm 722; the first bearing cover 728 has a first through hole, the first fastening nut 726 is inserted into the first through hole, and the diameter of the first through hole is smaller than that of the first through hole 15, so the first bearing cover 728 can limit the first bearing 725 in the first through hole 15.
The hinge joint 72 further includes a second bearing 729, a second fastening nut 730, a second adjusting ring 731, and a second bearing cap 732, wherein the second bearing 729 is located in the second through hole 16 and is sleeved on the hinge pin 724, and preferably, the second bearing 729 is an angular contact type bearing; the second fastening nut 730 is sleeved on one end of the hinge pin 724 far away from the first connecting arm 722 to limit the second bearing 729 in the second through hole 16; the second adjustment ring 731 is disposed on the hinge pin 724 such that the second adjustment ring 731 is located between the second bearing 729 and the second tightening nut 730, and the second bearing 729 is in closer abutment with the second tightening nut 730 by the second adjustment ring 731; the second bearing cap is disposed on a side of the second connecting arm 723 opposite to the first connecting arm 722, and the second bearing 729 pressing block and the second fastening nut 730 are located on the same side of the second connecting arm 723; the second bearing cap 732 has a second through hole, the second fastening nut 730 is inserted into the second through hole, and the diameter of the second through hole is smaller than the diameter of the second through hole 16, so that the second bearing cap 732 can limit the second bearing 729 in the second through hole 16. Wherein the first and second bearings 725 and 729 are identical in shape and size, the first and second tightening nuts 726 and 730 are identical in shape and size, the first and second adjustment rings 727 and 731 are identical in shape and size, and the first and second bearing glands 725 and 732 are identical in shape and size.
First correction subassembly 4 still includes second guide holder 12 and second guide rail 11, second guide holder 12 sets up hinge arm 8 is kept away from hinge seat 7 one end, second guide rail 11 sets up work platform 2's side, the guide rail perpendicular to lead screw 6, be provided with on the second guide holder 12 with the guide slot of second guide holder 12 looks adaptation, second guide holder 12 passes through the guide slot with the cooperation of second guide rail 11 with work platform 2 sliding connection.
The first correcting assembly 4 further comprises a fixing block 13, the fixing block 13 is fixedly connected with the support plate 1, the fixing block 13 is located at one end, far away from the driving device 5, of the screw rod 6, a third through hole is formed in the fixing block 13, and one end, far away from the driving device 5, of the screw rod 6 is located in the third through hole and is rotatably connected with the fixing block 13. Through the arrangement of the fixing block 13, one end of the screw rod 6, which is far away from the driving device 5, is supported.
It should be noted that the first correcting element 4 and the second correcting element 5 are only arranged at different positions on the support plate 1, but the structures are completely the same, and therefore, the detailed description of the specific structure of the second correcting element 5 is omitted in this embodiment.
The utility model also provides a printing machine, which comprises the correcting mechanism.
In summary, the present invention discloses a calibration mechanism and a printing machine, which includes: a support plate; the working platform is movably arranged on the supporting plate; the correcting assembly is arranged on the supporting plate and is connected with the working platform, and the correcting assembly is used for correcting the position of the working platform on the supporting plate; and the pre-tightening assembly is arranged on one side of the correcting assembly, one end of the pre-tightening assembly is connected with the supporting plate, and the other end of the pre-tightening assembly is connected with the working platform. According to the utility model, the pre-tightening assemblies which correspond to the plurality of correction assemblies one by one are arranged on the supporting plate so as to eliminate gaps in the correction assemblies, so that the correction assemblies can correct the working platform more accurately, the alignment accuracy of the PCB on the working platform and the stencil is improved, and the printing quality of the PCB during solder paste printing is greatly improved.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A calibration mechanism, characterized in that it comprises:
a support plate;
the working platform is movably arranged on the supporting plate;
the correcting assembly is arranged on the supporting plate and is connected with the working platform, and the correcting assembly is used for correcting the position of the working platform on the supporting plate; and
the pre-tightening assembly is arranged on one side of the correcting assembly, one end of the pre-tightening assembly is connected with the supporting plate, and the other end of the pre-tightening assembly is connected with the working platform.
2. The calibration mechanism of claim 1, wherein the pretensioning assembly comprises:
the first tension spring column is connected with the supporting plate;
the second tension spring column is connected with the working platform; and
and one end of the elastic piece is connected with the first tension spring column, and the other end of the elastic piece is connected with the second tension spring column.
3. The calibration mechanism of claim 1, wherein the calibration assembly comprises:
the first correcting component is positioned on one side of the working platform;
the second correcting component is positioned on the other side of the working platform, and the second correcting component is perpendicular to the first correcting component.
4. The calibration mechanism of claim 3, wherein the first calibration assembly comprises:
a driving device disposed on the support plate;
the screw rod is connected with the driving device; and
the hinge seat is rotationally connected with the screw rod and is in sliding connection with the bearing plate;
and one end of the hinge arm is connected with the hinge seat, and the other end of the hinge arm is connected with the working platform in a sliding manner.
5. The calibration mechanism of claim 4, wherein the first calibration assembly further comprises:
a first guide rail provided on the support plate and parallel to the lead screw;
the first guide seat is connected with the hinge seat, and a guide groove matched with the first guide rail is formed in the first guide seat.
6. The calibration mechanism of claim 4, wherein the hinge mount comprises:
the screw rod connecting part is provided with a sleeve, and the sleeve is provided with an internal thread matched with the external thread of the screw rod;
and the hinge connecting part is connected with the screw rod connecting part and is hinged with the hinge arm.
7. The alignment mechanism of claim 6 wherein the hinge connection comprises:
the connecting block is connected with the screw rod connecting part and is positioned on one side of the screw rod connecting part, which faces away from the supporting plate;
the first connecting arm is connected with one side, back to the driving device, of the connecting block;
the second connecting arm is connected with one side, back to the driving device, of the connecting block, and the second connecting arm and the first connecting arm are arranged at intervals; and
one end of the hinge pin is rotatably connected with the first connecting arm, and the other end of the hinge pin is rotatably connected with the second connecting arm;
the hinge arm is located between the first connecting arm and the second connecting arm, and the hinge arm is rotatably connected with the hinge pin.
8. The alignment mechanism of claim 7 wherein the first connecting arm has a first through hole formed therein;
the hinge connection portion further includes:
the first bearing is positioned in the first through hole and sleeved on the hinge pin;
the first fastening nut is sleeved at one end, far away from the second connecting arm, of the hinge pin; and
the first adjusting ring is sleeved on the hinge pin and positioned between the first bearing and the first fastening nut.
9. The alignment mechanism of claim 7 wherein the second connecting arm has a second through hole;
the hinge connection portion further includes:
the second bearing is positioned in the second through hole and sleeved on the hinge pin;
the second fastening nut is sleeved at one end, far away from the first connecting arm, of the hinge pin; and
and the second adjusting ring is sleeved on the hinge pin and is positioned between the second bearing and the second fastening nut.
10. A printing press comprising a correction mechanism according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022680975.7U CN215551913U (en) | 2020-11-18 | 2020-11-18 | Correcting mechanism and printing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022680975.7U CN215551913U (en) | 2020-11-18 | 2020-11-18 | Correcting mechanism and printing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215551913U true CN215551913U (en) | 2022-01-18 |
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ID=79814872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022680975.7U Active CN215551913U (en) | 2020-11-18 | 2020-11-18 | Correcting mechanism and printing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215551913U (en) |
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2020
- 2020-11-18 CN CN202022680975.7U patent/CN215551913U/en active Active
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