A feeding mechanism for a high-speed SMT placement machine

Abstract

The invention belongs to the field of patch machines, and in particular to a feeding mechanism of a high-speed SMT patch machine. Aiming at the problem that the dust removal process of the existing patch loading needs to stop the running conveyor belt, which will affect the feeding efficiency of the patch, and the patch is easily scratched by the method of pressing the patch with a steel mesh, the following scheme is proposed, which includes a base, a concave frame fixedly connected to the top of the base, and a patch machine body is arranged on one side of the concave frame; a limiting cleaning mechanism, the limiting cleaning mechanism is fixedly arranged on the concave frame and used for limiting and cleaning the patch, and an exhaust dust removal mechanism, the exhaust dust removal mechanism is fixedly arranged on the concave frame and used for dusting the surface of the loaded patch, the dust removal process does not need to stop the operation of the feeding conveyor belt, and can improve the feeding efficiency of the SMT patch machine, and the flexible No. 1 brush roller and No. 2 brush roller are used to closely fit the patch, which plays a good protective role and can also clean the patch.

Description

Technical Field

[0001] The invention relates to the technical field of chip mounters, and in particular to a feeding mechanism of a high-speed SMT chip mounter. Background Art

[0002] When the SMT placement machine is used, a matching patch feeding device is required. The patch feeding device transports the patch to the suction position of the placement machine to facilitate the operation of the placement machine.

[0003] The authorization document with announcement number CN215188132U discloses a patch feeding device for an SMT patch machine, including a conveying platform, a support rod is fixedly connected to the top of the conveying platform, a support plate is fixedly connected to the top of the support rod, a dust suction component is installed on the support plate, the dust suction component includes a dust hood, a hydraulic cylinder, an air guide port, a dust collection box, and a negative pressure fan. The top of the dust hood is connected to the hydraulic cylinder, and the hydraulic cylinder is installed at the bottom of the support plate. A limiting wire mesh is provided near the bottom of the inner cavity of the dust hood, and the negative pressure fan is connected to a battery through an electric wire. The patch feeding method of the SMT patch machine has the following obvious problems:

[0004] 1. The dust removal process requires stopping the conveyor belt, which will affect the efficiency of patch loading;

[0005] 2. Using a wire mesh to press the patch can easily scratch the patch.

[0006] In view of the above problems, the present invention document proposes a feeding mechanism for a high-speed SMT placement machine. Summary of the invention

[0007] The present invention provides a feeding mechanism for a high-speed SMT patch machine, which solves the shortcomings in the prior art that the dust removal process of the loading patch requires stopping the running conveyor belt, which affects the feeding efficiency of the patch, and the method of pressing the patch with a steel wire mesh is easy to scratch the patch.

[0008] The present invention provides the following technical solutions:

[0009] A loading mechanism of a high-speed SMT placement machine comprises a base, a concave frame fixedly connected to the top of the base, and a placement machine body is arranged on one side of the concave frame;

[0010] A position limiting cleaning mechanism, which is fixed on the concave frame and is used to limit and clean the patch;

[0011] An exhaust-type dust removal mechanism, which is fixed on the concave frame and is used to remove dust from the surface of the loaded patch;

[0012] A loading and conveying mechanism is fixedly arranged on the base and is used for conveying patches for loading.

[0013] In a possible design, the position limiting cleaning mechanism includes a No. 1 brush roller and a No. 2 brush roller which are horizontally rotatably mounted on the concave frame, and the tops of the No. 1 brush roller and the No. 2 brush roller can be detached and tightly fitted to the top of the patch conveyed on the feeding conveying mechanism.

[0014] In a possible design, a chamber is provided on the concave frame, and the exhaust-type dust removal mechanism includes a suction pipe fixedly arranged inside the chamber, the bottom of the suction pipe extends to the bottom of the concave frame and is sealed and connected to a dust box for sucking dust from the surface of the patch on the feeding and conveying mechanism, and the dust box is located above the No. 1 brush roller and the No. 2 brush roller.

[0015] In a possible design, the exhaust-type dust removal mechanism includes a gear box fixedly mounted on the outside of the concave frame, a drive motor fixedly mounted on the outside of the gear box, an end of the drive motor output shaft extends to the interior of the gear box and is fixedly mounted with a power shaft, an end of the power shaft extends to the interior of the suction pipe, and a plurality of suction fins arranged in a ring are fixedly mounted on the outside of the power shaft.

[0016] In a possible design, the loading and conveying mechanism includes a support block fixedly mounted on the top of the base, a plurality of legs arranged in a matrix are fixedly mounted on the top of the support block, the same fixed plate is fixedly mounted on the two legs on the same side, the same active roller and the same driven roller are rotatably mounted on the side where the two fixed plates are close to each other, and the outer sides of the active roller and the driven roller are transmission-connected with the same loading conveyor belt for conveying patches for loading.

[0017] In a possible design, the outer fixed sleeve of the power shaft is provided with a transmission pinion, the gear box is internally rotatably installed with a horizontally arranged reduction shaft, the outer fixed sleeve of the reduction shaft is provided with a large reduction gear meshing with the transmission pinion, the ends of the No. 1 brush roller and the No. 2 brush roller both extend into the interior of the gear box, and the outer fixed sleeve of the No. 1 brush roller is provided with a transmission gear meshing with the large reduction gear.

[0018] In a possible design, the SMT machine body is provided with a receiving chamber located at the end of the loading and conveying mechanism for receiving the patches on the loading and conveying mechanism, and a horizontally arranged connecting shaft is rotatably mounted on the receiving chamber, the end of the connecting shaft and the end of the active roller are fixedly connected, and the outer side of the connecting shaft is connected to the outer side of the No. 2 brush roller through a No. 2 belt.

[0019] In a possible design, the outer sides of the No. 1 brush roller and the No. 2 brush roller are connected to the same No. 1 belt through a pulley transmission, a through hole is opened on the outer side of the gear box, the end of the No. 2 belt passes through the through hole and extends to the outside of the gear box, a dust box with an opening at the bottom is fixedly connected to the chamber, the end of the suction tube is sealably connected to the interior of the dust box, the outer side of the power shaft is rotatably connected to the side wall of the dust box, and a sliding cover is slidably installed on the bottom of the dust box through a slide rail and a slide groove.

[0020] It is to be understood that the foregoing general description and the following detailed description are exemplary only and are not restrictive of the invention.

[0021] In the present invention, by setting the No. 1 brush roller and the No. 2 brush roller, the No. 1 brush roller and the No. 2 brush roller can rotate under the action of the driving motor, and when the patch follows the feeding conveyor belt to move to the bottom of the dust collection box, the patch will be pressed and dusted by the No. 1 brush roller and the No. 2 brush roller. The rotation and cleaning process of the No. 1 brush roller and the No. 2 brush roller will not cause the patch to shift on the feeding conveyor belt. The brushed dust will enter the dust collection box through the dust collection box and the suction pipe for collection. The dust removal process does not need to stop the operation of the feeding conveyor belt, which can improve the feeding efficiency of the SMT patch machine.

[0022] In the present invention, through the arrangement of the power shaft, the transmission pinion and the reduction gear, the power shaft can drive the plurality of suction fins to rotate at a high speed, thereby forming a suction force inside the suction tube. At the same time, through the meshing of the reduction gear and the transmission gear, the reduction shaft, the power shaft, the first brush roller and the second brush roller can be linked. Then, through the arrangement of the second belt, the second brush roller and the active roller can be linked. Only one power source component is required for the entire operation process, thereby reducing the production cost. The flexible first brush roller and the second brush roller are used to closely fit the patch, which plays a good protective role and can also clean the patch.

[0023] In the present invention, the dust removal process does not need to stop the operation of the feeding conveyor belt, which can improve the feeding efficiency of the SMT placement machine. The flexible No. 1 brush roller and No. 2 brush roller are used to closely fit the patch, which plays a good protective role and can also clean the patch. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic structural diagram of a loading mechanism of a high-speed SMT placement machine provided by an embodiment of the present invention;

[0025] Figure 2 A schematic cross-sectional structural diagram of a feeding mechanism of a high-speed SMT placement machine provided by an embodiment of the present invention;

[0026] Figure 3A schematic diagram of the internal structure of a concave frame of a feeding mechanism of a high-speed SMT placement machine provided by an embodiment of the present invention;

[0027] Figure 4 A schematic diagram of a separation structure of an ash collecting box and an exhaust impeller shaft of a feeding mechanism of a high-speed SMT placement machine provided by an embodiment of the present invention;

[0028] Figure 5 A feeding mechanism of a high-speed SMT placement machine provided by an embodiment of the present invention Figure 2 A schematic diagram of the enlarged structure of part A.

[0029] Reference numerals:

[0030] 1. Base; 2. SMT machine body; 3. Support block; 4. Feeding and conveying mechanism; 5. No. 1 brush roller; 6. No. 2 brush roller; 7. Concave frame; 8. Gear box; 9. Driving motor; 10. Power shaft; 11. Suction fins; 12. Chamber; 13. Dust collection box; 14. Sliding cover; 15. Suction tube; 16. Reduction shaft; 17. Reduction gear; 18. Transmission gear; 19. No. 1 belt; 20. No. 2 belt; 21. Connecting shaft; 22. Receiving chamber; 23. Through hole; 24. Leg; 25. Fixed plate; 26. Feeding and conveying belt. DETAILED DESCRIPTION

[0031] The embodiments of the present invention are described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0032] In the embodiments of the present invention, "and / or" is only a description of the association relationship of the associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0033] References to "one embodiment" or "some embodiments" etc. described in this specification mean that a particular feature, structure or characteristic described in conjunction with the embodiment is included in one or more embodiments of the present invention. Thus, the phrases "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. appearing in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0034] Example 1

[0035] Reference Figure 1 and Figure 2 , a feeding mechanism of a high-speed SMT placement machine, comprising a base 1, a concave frame 7 fixedly connected to the top of the base 1, and a placement machine body 2 is provided on one side of the concave frame 7;

[0036] A position limiting cleaning mechanism, which is fixed on the concave frame 7 and is used to limit and clean the patch;

[0037] The exhaust type dust removal mechanism is fixedly arranged on the concave frame 7 and is used to remove dust from the surface of the loaded patch;

[0038] The loading and conveying mechanism 4 is fixedly arranged on the base 1 and is used for conveying the patch for loading.

[0039] Reference Figure 1 The limiting cleaning mechanism includes a No. 1 brush roller 5 and a No. 2 brush roller 6 which are horizontally rotatably mounted on a concave frame 7. The tops of the No. 1 brush roller 5 and the No. 2 brush roller 6 can be detached and closely fitted to the top of the patch conveyed on the feeding conveying mechanism 4.

[0040] Reference Figure 1 , Figure 3 and Figure 4 A chamber 12 is provided on the concave frame 7, and the exhaust dust removal mechanism includes a suction pipe 15 fixedly arranged inside the chamber 12. The bottom of the suction pipe 15 extends to the bottom of the concave frame 7 and is sealed and connected to a dust box for sucking dust on the surface of the patch on the feeding conveying mechanism 4, and the dust box is located above the No. 1 brush roller 5 and the No. 2 brush roller 6.

[0041] Reference Figure 1 , Figure 3 and Figure 4 The exhaust dust removal mechanism includes a gear box 8 fixedly mounted on the outside of the concave frame 7, a drive motor 9 fixedly mounted on the outside of the gear box 8, the end of the output shaft of the drive motor 9 extends to the inside of the gear box 8 and is fixedly mounted with a power shaft 10, the end of the power shaft 10 extends to the inside of the suction pipe 15, and a plurality of suction fins 11 arranged in a ring are fixedly mounted on the outside of the power shaft 10.

[0042] Reference Figure 1 and Figure 2 The feeding conveying mechanism 4 includes a support block 3 fixedly mounted on the top of the base 1, and a plurality of legs 24 arranged in a matrix are fixedly mounted on the top of the support block 3. The same fixed plate 25 is fixedly mounted on the two legs 24 on the same side, and the same active roller and the same driven roller are rotatably mounted on the side where the two fixed plates 25 are close to each other, and the outer sides of the active roller and the driven roller are transmission-connected with the same feeding conveyor belt 26 for conveying patches for loading.

[0043] Example 2

[0044] Reference Figure 1 and Figure 2 , a feeding mechanism of a high-speed SMT placement machine, comprising a base 1, a concave frame 7 fixedly connected to the top of the base 1, and a placement machine body 2 is provided on one side of the concave frame 7;

[0045] A position limiting cleaning mechanism, which is fixed on the concave frame 7 and is used to limit and clean the patch;

[0046] The exhaust type dust removal mechanism is fixedly arranged on the concave frame 7 and is used to remove dust from the surface of the loaded patch;

[0047] A feeding conveying mechanism 4, which is fixed on the base 1 and is used to convey the patch for feeding;

[0048] The position limiting cleaning mechanism in the above technical solution uses a flexible pressing piece to limit the patch, which will not scratch the patch. The position limiting cleaning mechanism can limit the patch on the one hand, and clean the patch on the other hand.

[0049] Reference Figure 1 The position-limiting cleaning mechanism includes a first brush roller 5 and a second brush roller 6 which are horizontally rotatably mounted on a concave frame 7. The tops of the first brush roller 5 and the second brush roller 6 can be detached and closely fitted to the top of the patch conveyed by the feeding conveying mechanism 4;

[0050] The material of the No. 1 brush roller 5 and the No. 2 brush roller 6 in the above technical solution is a flexible material, which can clean the patch well without scratching the patch.

[0051] Reference Figure 1 , Figure 3 and Figure 4 A chamber 12 is provided on the concave frame 7, and the exhaust dust removal mechanism includes a suction pipe 15 fixedly arranged inside the chamber 12, the bottom of the suction pipe 15 extends to the bottom of the concave frame 7 and is sealed and connected to a dust suction box for sucking dust on the surface of the patch on the feeding conveying mechanism 4, and the dust suction box is located above the first brush roller 5 and the second brush roller 6;

[0052] The suction tube 15 in the above technical solution is L-shaped, and the dust collection box is long and can cover the width of the patch, which has a good effect of dust collection on the surface of the patch.

[0053] Reference Figure 1 , Figure 3 and Figure 4The exhaust dust removal mechanism includes a gear box 8 fixedly mounted on the outside of the concave frame 7, a drive motor 9 is fixedly mounted on the outside of the gear box 8, the end of the output shaft of the drive motor 9 extends to the inside of the gear box 8 and is fixedly mounted with a power shaft 10, the end of the power shaft 10 extends to the inside of the suction pipe 15, and a plurality of suction fins 11 arranged in a ring are fixedly mounted on the outside of the power shaft 10;

[0054] The specifications of the driving motor 9 in the above technical solution can be selected according to actual conditions. The suction fins 11 on the power shaft 10 can generate suction force when rotating at high speed. The suction force generated by the high-speed rotation of the suction fins 11 is the power for dust removal on the patch.

[0055] Reference Figure 1 and Figure 2 The feeding conveying mechanism 4 includes a support block 3 fixedly mounted on the top of the base 1, a plurality of legs 24 arranged in a matrix are fixedly mounted on the top of the support block 3, a same fixed plate 25 is fixedly mounted on two legs 24 on the same side, a same active roller and a same driven roller are rotatably mounted on the side of the two fixed plates 25 close to each other, and a same feeding conveying belt 26 for conveying patches for feeding is transmission-connected to the outer sides of the active roller and the driven roller;

[0056] The two fixing plates 25 in the above technical solution are arranged horizontally and symmetrically. The fixing plates 25 are used to install the feeding conveyor belt 26 on the one hand, and to limit the patches conveyed on the feeding conveyor belt 26 on the other hand.

[0057] Reference Figure 2 and Figure 5 The outer fixed sleeve of the power shaft 10 is provided with a transmission pinion, and a horizontally arranged reduction shaft 16 is rotatably installed inside the gear box 8. The outer fixed sleeve of the reduction shaft 16 is provided with a reduction gear 17 meshing with the transmission pinion. The ends of the No. 1 brush roller 5 and the No. 2 brush roller 6 extend to the inside of the gear box 8, and the outer fixed sleeve of the No. 1 brush roller 5 is provided with a transmission gear 18 meshing with the reduction gear 17;

[0058] The reduction gear 17 and the transmission pinion in the above technical solution will not be out of mesh, and the reduction gear 17 can significantly reduce the rotation speed of the reduction shaft 16, so that the reduction shaft 16 can drive the first brush roller 5 to rotate in a buffered manner.

[0059] Reference Figure 2 and Figure 5 The mounter body 2 is provided with a receiving chamber 22 located at the end of the feeding conveying mechanism 4 for receiving the patches on the feeding conveying mechanism 4. A horizontally arranged connecting shaft 21 is rotatably mounted on the receiving chamber 22. The end of the connecting shaft 21 is fixedly connected to the end of the active roller. The outer side of the connecting shaft 21 is connected to the outer side of the second brush roller 6 through the second belt 20.

[0060] The connecting shaft 21 and the second brush roller 6 in the above technical solution are arranged in parallel, and the connecting shaft 21 can rotate synchronously with the second brush roller 6 .

[0061] Reference Figure 2 , Figure 4 Figure 5 The outer sides of the No. 1 brush roller 5 and the No. 2 brush roller 6 are connected to the same No. 1 belt 19 through a pulley transmission. A through hole 23 is opened on the outer side of the gear box 8. The end of the No. 2 belt 20 passes through the through hole 23 and extends to the outer side of the gear box 8. The chamber 12 is fixedly connected with an ash box 13 with an opening at the bottom. The end of the suction tube 15 is sealed and connected to the inside of the ash box 13. The outer side of the power shaft 10 is rotatably connected to the side wall of the ash box 13. The bottom of the ash box 13 is slidably installed with a slide cover 14 through a slide rail and a slide groove.

[0062] The sliding cover 14 and the dust collecting box 13 in the above technical solution can be separated, and the dust sucked out from the suction tube 15 can be stored in the dust collecting box 13. The purpose of setting the sliding cover 14 is to facilitate cleaning of the dust collected in the dust collecting box 13.

[0063] However, as is well known to those skilled in the art, the working principles and wiring methods of the SMT machine body 2 and the drive motor 9 are commonplace, and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art can make any optional selections according to their needs or convenience.

[0064] The working principle and use process of the present technical solution are as follows: when in use, the patch to be loaded is placed on the loading conveyor belt 26 for loading and conveying, the switch of the driving motor 9 is pressed to start the driving motor 9, and the output shaft of the driving motor 9 will drive the power shaft 10 to rotate at high speed, and the power shaft 10 can drive multiple suction fins 11 to rotate at high speed, thereby forming a suction force inside the suction tube 15 and the dust box. At the same time, through the meshing relationship between the set transmission pinion and the reduction gear 17, the linkage between the power shaft 10 and the reduction shaft 16 can be realized, and then through the meshing relationship between the set transmission gear 18 and the reduction gear 17, the No. 1 brush roller 5 and the No. 2 brush The same No. 1 belt 19 that is connected to the outer side of the roller 6 for transmission can realize the linkage of the reduction shaft 16, the power shaft 10, the No. 1 brush roller 5 and the No. 2 brush roller 6. By using the No. 2 belt 20, the rotating No. 2 brush roller 6 will drive the connecting shaft 21 and the active roller to rotate, and the loading conveyor belt 26 can transport the patch to move. When the patch follows the loading conveyor belt 26 to move to the bottom of the dust collection box, the patch will be pressed and dusted by the No. 1 brush roller 5 and the No. 2 brush roller 6. The rotation and cleaning process of the No. 1 brush roller 5 and the No. 2 brush roller 6 will not cause the patch to shift on the loading conveyor belt 26, and the brushed dust will enter the dust collection box 13 through the dust collection box and the suction tube 15 for collection.

[0065] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention; the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A feeding mechanism for a high-speed SMT placement machine, characterized in that: include: A base (1), a concave frame (7) fixedly connected to the top of the base (1), and a placement machine body (2) is provided on one side of the concave frame (7); A position limiting cleaning mechanism, the position limiting cleaning mechanism is fixedly arranged on the concave frame (7) and is used for limiting the position of and cleaning the patch; An exhaust-type dust removal mechanism, the exhaust-type dust removal mechanism is fixedly arranged on the concave frame (7) and is used to remove dust from the surface of the loaded patch; A loading and conveying mechanism (4), the loading and conveying mechanism (4) is fixedly arranged on the base (1) and is used to convey the patch for loading; The position-limiting cleaning mechanism comprises a first brush roller (5) and a second brush roller (6) which are mounted on the concave frame (7) in a horizontally rotatable manner, and the tops of the first brush roller (5) and the second brush roller (6) can be detachably and tightly fitted to the tops of the patches conveyed by the feeding conveying mechanism (4); The concave frame (7) is provided with a chamber (12), and the exhaust dust removal mechanism includes a suction pipe (15) fixedly arranged inside the chamber (12), the bottom of the suction pipe (15) extends to the bottom of the concave frame (7) and is sealed and connected to a dust suction box for sucking dust on the surface of the patch on the feeding conveying mechanism (4), and the dust suction box is located above the first brush roller (5) and the second brush roller (6); The exhaust dust removal mechanism comprises a gear box (8) fixedly mounted on the outside of the concave frame (7), a driving motor (9) fixedly mounted on the outside of the gear box (8), an end of an output shaft of the driving motor (9) extending into the interior of the gear box (8) and fixedly mounted with a power shaft (10), an end of the power shaft (10) extending into the interior of the suction pipe (15), and a plurality of suction fins (11) arranged in a ring shape fixedly mounted on the outside of the power shaft (10); The loading and conveying mechanism (4) comprises a support block (3) fixedly mounted on the top of the base (1); a plurality of legs (24) arranged in a matrix are fixedly mounted on the top of the support block (3); a same fixed plate (25) is fixedly mounted on two legs (24) located on the same side; a same active roller and a same driven roller are rotatably mounted on the sides of the two fixed plates (25) close to each other; and a same loading conveyor belt (26) for conveying patches for loading is transmission-connected to the outer sides of the active roller and the driven roller; The outer fixed sleeve of the power shaft (10) is provided with a transmission pinion, the gear box (8) is internally rotatably mounted with a horizontally arranged reduction shaft (16), the outer fixed sleeve of the reduction shaft (16) is provided with a reduction gear (17) meshing with the transmission pinion, the ends of the first brush roller (5) and the second brush roller (6) both extend into the interior of the gear box (8), and the outer fixed sleeve of the first brush roller (5) is provided with a transmission gear (18) meshing with the reduction gear (17).

2. A feeding mechanism for a high-speed SMT placement machine according to claim 1, characterized in that: The chip mounter body (2) is provided with a receiving chamber (22) located at the end of the loading and conveying mechanism (4) for receiving the chips on the loading and conveying mechanism (4), and a horizontally arranged connecting shaft (21) is rotatably mounted on the receiving chamber (22), the end of the connecting shaft (21) is fixedly connected to the end of the active roller, and the outer side of the connecting shaft (21) is transmission-connected to the outer side of the second brush roller (6) via a second belt (20).

3. A feeding mechanism for a high-speed SMT placement machine according to claim 2, characterized in that: The outer sides of the No. 1 brush roller (5) and the No. 2 brush roller (6) are connected to the same No. 1 belt (19) through a pulley transmission. A through hole (23) is provided on the outer side of the gear box (8). The end of the No. 2 belt (20) passes through the through hole (23) and extends to the outer side of the gear box (8). A dust collecting box (13) having an opening at the bottom is fixedly connected to the chamber (12). The end of the suction tube (15) is sealed and connected to the inside of the dust collecting box (13). The outer side of the power shaft (10) is rotatably connected to the side wall of the dust collecting box (13). A sliding cover (14) is slidably installed on the bottom of the dust collecting box (13) through a sliding rail and a sliding groove.

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