A synchronous placement mechanism

Abstract

This invention relates to the field of electronic component taping and reeling equipment technology, specifically to a synchronous placement mechanism; it includes a tape placement assembly, a synchronization assembly, and a divider sequentially arranged on a frame; the tape placement assembly can reciprocate laterally along the frame, and is equipped with a rack; the frame is equipped with a driver, which is connected to the rack via a drive gear; the synchronization assembly includes a main shaft, which is rotatably mounted on the frame via bearings, and is equipped with a driven gear and a clutch assembly; the driven gear is connected to the divider, and the clutch assembly is connected to the rack; this invention has a reasonable structure, the tape is threaded through the tape placement assembly and the divider, and the speed and stroke of the driver can be adjusted independently; the tape placement assembly and the divider are linked by a clutch, preventing excessive friction during tape movement that could lead to displacement; the overall structure is compact, and the placement effect is good.

Description

Technical Field

[0001] This invention relates to the field of electronic component taping and reeling equipment technology, specifically to a synchronous placement mechanism. Background Technology

[0002] The integrated modular placement machine is a brand-new concept that has emerged in recent years during the research and development of new placement machine equipment. Its main features are: using the main unit of the placement machine as the standard equipment, equipping it with a unified and standard base platform and universal interface, and designing the functions of various processes such as bare die cutting, coating, placement and inspection, and even soldering as functional module components. Users can configure the required functional module components on the main unit according to production needs to achieve different functional requirements.

[0003] Chinese patent CN211766507U discloses an automatic electronic component taping machine without cylinder drive, including a component feeding mechanism, an adjustment mechanism, a cam transmission mechanism, and a component taping mechanism for attaching the pins of electronic components between paper tape and adhesive tape. The component feeding mechanism, adjustment mechanism, and component taping mechanism are sequentially mounted on a frame, and the adjustment mechanism is connected to the cam transmission mechanism. The conveying process of the material tape in the above mechanisms needs to be synchronized. In existing component taping mechanisms, the take-up action is accomplished by a cam and a swing arm mechanism. The stroke of the swing arm mechanism is fixed, and synchronization requires adjusting the drive angle of the cam. Adjusting the stroke of the take-up mechanism is difficult and it is hard to match the transmission angle of the divider. Other cooperating mechanisms need to be added, making the overall structure too complex.

[0004] Therefore, existing technologies still need to be improved and developed. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings and deficiencies of the prior art by providing a synchronous patching mechanism with a reasonable structure, good synchronization, and convenient stroke adjustment.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] The present invention discloses a synchronous patching mechanism, comprising a patching assembly, a synchronization assembly, and a divider sequentially arranged on a frame; the patching assembly is laterally reciprocating along the frame, and the patching assembly is provided with a rack; the frame is provided with a driver, and the driver is meshed with the rack via a drive gear; the synchronization assembly includes a main shaft, which is rotatably mounted on the frame via bearings; the main shaft is provided with a driven gear and a clutch assembly; the driven gear is drivenly connected to the divider, and the clutch assembly is engaged with the rack.

[0008] According to the above scheme, the clutch assembly includes a one-way bearing and a rocker arm. The rocker arm is mounted on the main shaft through the one-way bearing, and the end of the rocker arm is provided with a stroke tooth. The rocker arm is meshed with the rack through the stroke tooth.

[0009] According to the above scheme, a return spring is connected between the rack and the rocker arm.

[0010] According to the above scheme, the tape application assembly includes a traction arm, a guide frame, and a guide rod. The guide frame is fixedly connected to the machine frame, and the guide rod passes through the guide frame laterally. The traction arm is fixedly connected to the first end of the guide rod, and a fixing block is provided on the second end of the guide rod. A rack is fixedly connected to the fixing block. The traction arm is provided with a tape application wheel.

[0011] According to the above scheme, the drive shaft of the divider is provided with a drive gear and an embossing wheel, and an auxiliary wheel is provided on one side of the embossing wheel. The auxiliary wheel is rotatably connected to the divider through a rotating shaft.

[0012] According to the above scheme, the driver is a stepper motor.

[0013] The beneficial effects of this invention are as follows: The invention has a reasonable structure, with the paper tape threaded onto the tape application assembly and the divider. During the application stroke, the driver can move the tape application assembly to one side via a rack, and the speed and stroke of the driver can be adjusted independently. During the tape retraction stroke, the divider drives the rack and the tape application assembly to move synchronously to the other side via a driven gear and a clutch assembly. The tape application assembly and the divider are linked by a clutch, preventing excessive friction during the paper tape's movement that could lead to displacement. The overall structure is compact, and the application effect is good. Attached Figure Description

[0014] Figure 1 This is a top view schematic diagram of the overall structure of the present invention.

[0015] In the picture:

[0016] 10. Frame; 20. Rack; 30. Driver; 40. Divider; 11. Main shaft; 12. Driven gear; 13. Swing arm; 21. Return spring; 22. Traction arm; 23. Guide frame; 24. Guide rod; 25. Fixing block; 26. Belt pulley; 31. Drive gear; 41. Driving gear; 42. Embossing wheel; 43. Auxiliary wheel. Detailed Implementation

[0017] The technical solution of the present invention will be described below with reference to the accompanying drawings and embodiments.

[0018] like Figure 1As shown, the synchronous patching mechanism of the present invention includes a patching assembly, a synchronization assembly, and a divider 40 sequentially arranged on a frame 10. Paper tape (shown as dashed lines in the figures) is threaded onto the patching assembly and the divider 40. The patching assembly is laterally reciprocating along the frame 10 and is equipped with a rack 20. A driver 30 is mounted on the frame 10, and the driver 30 is meshed with the rack 20 via a drive gear 31. The synchronization assembly includes a main shaft 11, which is rotatably mounted on the frame 10 via bearings. A driven gear 12 and a clutch assembly are mounted on the main shaft 11. The driven gear 12 is drive-connected to the divider 40, and the clutch assembly is engaged with the rack 20.

[0019] During the tape application stroke, the divider 40 clamps one end of the paper tape, and the transmission connection between the main shaft 11 and the rack 20 is disconnected by a clutch assembly. The driver 30 drives the tape application assembly to move to the left in the figure via the drive gear 31 and the rack 20. The tape application assembly includes a traction arm 22, a guide frame 23, and a guide rod 24. The guide frame 23 is fixedly connected to the frame 10, and the guide rod 24 passes through the guide frame 23 laterally. The traction arm 22 is fixedly connected to the first end of the guide rod 24, and a fixing block 25 is provided on the second end of the guide rod 24. The rack 20 is fixedly connected to the fixing block 25. A tape application wheel 26 is provided on the traction arm 22. The tape application wheel 26 rolls to peel off the patches from the paper tape and apply them to the electronic components. When the tape application stroke ends, the driver 30 sends a pulse signal.

[0020] The driver 30 is a stepper motor. The stepper motor can set the rotation angle according to parameters, thereby adjusting the stroke of the rack 20 and the tape assembly. The adjustment is convenient and quick, solving the stroke limitation problem of the existing cam swing arm transmission mechanism.

[0021] The divider 40 has a drive gear 41 and an embossing wheel 42 on its drive shaft. An auxiliary wheel 43 is provided on one side of the embossing wheel 42, and the auxiliary wheel 43 is rotatably connected to the divider 40 via a rotating shaft. The drive gear 41 and the embossing wheel 42 are concentrically arranged on the drive shaft of the divider 40 and rotate synchronously. The embossing wheel 42 cooperates with the adjacent auxiliary wheel 43 to clamp the paper tape. The embossing wheel 42 clamps / drives the paper tape through friction.

[0022] After receiving the pulse signal from the driver 30, the divider 40 drives the drive gear 41 and the embossing wheel 42 to rotate, causing the paper tape to move to the right. At this time, the drive gear 41 drives the driven gear 12 and the main shaft 11 to rotate, and the main shaft 11 drives the rack 20 to reset to the right through the clutch assembly.

[0023] The clutch assembly includes a one-way bearing and a rocker arm 13. The rocker arm 13 is mounted on the main shaft 11 via the one-way bearing. The end of the rocker arm 13 has a travel tooth, which meshes with the rack 20. When the driver 30 drives the rack 20 to the left, the rocker arm 13 can rotate freely on the main shaft 11 (clockwise in the attached figure). The divider 40 drives the main shaft 11 to rotate. At this time, the one-way bearing drives the rocker arm 13 (counterclockwise in the attached figure) to rotate with the main shaft 11. The travel tooth on the rocker arm 13 meshes with the rack 20, causing it to move to the right, thus synchronizing the paper tape assembly with the paper tape on the divider 40, preventing asynchrony between the two from causing paper tape slippage or breakage. Preferably, the divider 40 establishes a transmission connection through the drive gear 41, the main shaft 11, the one-way bearing, the rocker arm 13, and the rack 20, driving the paper tape assembly to move synchronously during the tape retraction stroke, preventing excessive friction during paper tape travel that could lead to displacement. The overall structure is compact, and the patching effect is good.

[0024] Furthermore, a return spring 21 is connected between the rack 20 and the swing arm 13. The driver 30 is a stepper motor, which can adjust the rotation angle according to parameters to regulate the stroke of the rack 20 and the tape application assembly. The adjustment is convenient and quick. When the stroke of the rack 20 increases, the stroke teeth at the end of the swing arm 13 do not need to be increased. That is, when the tape application assembly requires a larger stroke, the rack 20 may displace to the left by a certain distance, which may cause the meshing connection between the swing arm 13 and the rack 20 to break. During the tape retraction stroke, the return spring 21 pulls the rack 20 to move the tape application assembly toward the swing arm 13 by a certain distance. The paper tape between the tape application assembly and the divider 40 remains slack. Then, the divider 40 starts, and the main shaft 11 and the swing arm 13 begin to rotate counterclockwise. The swing arm 13 meshes with the rack 20, and the divider 40 drives the tape application assembly to move synchronously, preventing the paper tape from slipping or breaking due to asynchrony between the two.

[0025] The above description is only a preferred embodiment of the present invention. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of this patent application are included in the scope of this patent application.

Claims

1. A synchronous taping mechanism comprising, in sequence, a taping assembly, a synchronization assembly and a splitter (40) disposed on a frame (10); characterized in that: The tape sticking assembly can move transversely along the frame (10), the tape sticking assembly is provided with a rack (20), the frame (10) is provided with a driver (30), the driver (30) is connected with the rack (20) by a driving gear (31) in meshing connection;The synchronization assembly includes a main shaft (11), the main shaft (11) is rotatably installed on the frame (10) by a bearing, the main shaft (11) is provided with a passive gear (12) and a clutch assembly, the passive gear (12) is drivingly connected with a divider (40), and the clutch assembly is connected with the rack (20).

2. The synchronous patch mechanism of claim 1, wherein: The clutch assembly includes a one-way bearing and a swing arm (13), the swing arm (13) is installed on the main shaft (11) by the one-way bearing, the end of the swing arm (13) is provided with a stroke gear, and the swing arm (13) is connected with the rack (20) by the stroke gear in meshing connection.

3. The synchronous patch mechanism of claim 2, wherein: The rack (20) and the swing arm (13) are connected with a reset spring (21).

4. The synchronous patch mechanism of claim 1, wherein: The tape sticking assembly includes a traction arm (22), a guide frame (23) and a guide rod (24), the guide frame (23) is fixedly connected with the frame (10), the guide rod (24) is transversely arranged in the guide frame (23);The traction arm (22) is fixedly connected with the first end of the guide rod (24), the second end of the guide rod (24) is provided with a fixed block (25), and the rack (20) is fixedly connected with the fixed block (25);The traction arm (22) is provided with a tape sticking wheel (26).

5. The synchronous patch mechanism of claim 1, wherein: The driving shaft of the divider (40) is provided with a driving gear (41) and an embossing wheel (42), one side of the embossing wheel (42) is provided with an auxiliary wheel (43), and the auxiliary wheel (43) is rotatably connected with the divider (40) by a rotating shaft.

6. The synchronous patch mechanism of claim 1, wherein: The driver (30) is a stepping motor.

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