Braid feeding mechanism of chip mounter

Abstract

The utility model discloses a chip mounter braid feeding mechanism, comprising a transmission track used for transmitting braid and a cover plate, the cover plate is fixedly installed on the top of the transmission track, the bottom of the transmission track is provided with a tightening assembly used for preventing the braid from wrinkling, the tightening assembly comprises a tightening frame and a transmission rod, and the tightening frame is provided with a clamping groove. Tightening frames used for tightening the braid are installed on the two sides of the bottom of the conveying rail, the braid is sleeved with the two tightening frames, a bidirectional motor is fixedly installed at the bottom of the conveying rail, transmission rods are fixedly installed at the two power output ends of the bidirectional motor, threaded holes matched with the transmission rods are formed in the adjacent sides of the two tightening frames, and the transmission rods are fixedly installed in the threaded holes. The ends, away from the two-way motor, of the two transmission rods penetrate through the threaded holes and extend into an inner cavity of the tightening frame. Through mutual cooperation of all the parts, continuous movement of the braid and continuous taking-down of the patch are facilitated, and time and energy needed in the process that the patch is taken down from the outside of the braid can be effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of the ribbon feeding mechanism of the chip mounter, and particularly relates to a ribbon feeding mechanism of a chip mounter. BACKGROUND

[0002] The chip mounter is also called a "mounting machine" and a "surface mounting system", and in a production line, it is configured after a glue dispenser or a silk screen printing machine, is a kind of equipment for accurately placing surface mounting components on PCB pads by moving mounting head, is divided into manual and full-automatic two kinds, and the ribbon feeding device is the device for placing the chip from the ribbon on the PCB pad in the chip mounter.

[0003] When the ribbon feeding device of the commonly used chip mounter conveys the ribbon, the ribbon is easily disturbed by the shape of the ribbon itself and the movement direction due to the size and direction of frictional force in the conveying process, so that the ribbon is prone to folding and unevenness after winding, and the ribbon is loose in conveying, which makes it difficult to accurately position the chip on the ribbon, and when the chip on the ribbon is taken down, the ribbon is loosened with the chip, so that the ribbon feeding device and the ribbon need to be adjusted after shutdown to continue to use, thereby increasing the time and energy required for taking down the chip from the outside of the ribbon. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of ribbon feeding mechanism of chip mounter to solve the problems raised in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] The ribbon feeding mechanism of chip mounter, including the transmission track for conveying ribbon and cover plate, cover plate is fixedly installed on the top of transmission track, the bottom of transmission track is provided with the tightening component for preventing the ribbon from wrinkling.

[0007] The tightening component includes tightening frame and transmission rod, the bottom of transmission track is installed with the tightening frame for tightening the ribbon on both sides, two tightening frames are all sleeved on the outside of the ribbon, the bottom of transmission track is fixedly installed with bidirectional motor, the two power output ends of bidirectional motor are all fixedly installed with transmission rod, the side adjacent to two tightening frames is all provided with the screw hole matched with transmission rod, the end of two transmission rods away from bidirectional motor penetrates screw hole and extends into the inner chamber of tightening frame, the outer wall of transmission rod is provided with the screw groove matched with screw hole.

[0008] The inner wall of the tightening frame away from the mounting hole is symmetrically installed with the plug-in column matched with the eyelet on the outside of the ribbon.

[0009] Preferably, the outer wall of transmission rod is fixedly sleeved with transmission bearing, and the outer wall of transmission bearing is fixedly installed with the connecting block connected with the bottom of transmission track.

[0010] Preferably, the bottom of the transmission track is symmetrically provided with guide rods on both sides, and the two tightening frames are provided with guide holes matched with the guide rods on one side.

[0011] Preferably, one end of the cover plate is provided with a sliding groove along the top of the cover plate, a combing plate for combing the outer wall of the braid is slidably arranged in the inner cavity of the sliding groove, the top of the combing plate is fixedly provided with a transmission block, a helical groove is formed in one side of the transmission block, a driving threaded rod is threadedly arranged in the inner cavity of the helical groove, and the top of the cover plate is fixedly provided with a driving motor for driving the threaded rod to rotate.

[0012] Preferably, the bottom of the combing plate is rotatably provided with a transmission roller through a rotating shaft, and the outer wall of the transmission roller is attached to the top of the braid.

[0013] Preferably, the bottom of the transmission track is provided with a winding roller and an unwinding roller on both sides, and the two tightening frames are located between the unwinding roller and the winding roller.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] The utility model discloses a tightening assembly, two transmission rods rotate simultaneously with the power output end of the bidirectional motor, and under the cooperation of the threaded hole and the threaded groove, the two tightening frames move to the direction close to the bidirectional motor simultaneously until the inserting columns on the inner walls of the two tightening frames are inserted into the eyelets on the outer part of the braid simultaneously, the braid between the two tightening frames is stretched with the movement of the two tightening frames, the raised part and the wrinkle of the braid become flat, which is beneficial to the continuous movement of the braid and the continuous taking off of the patch, and can effectively reduce the time and energy required in the process of taking off the patch from the outer part of the braid. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic view of the main structure of the utility model;

[0017] Figure 2 It is an assembly view of the tightening frame and the transmission rod of the utility model;

[0018] Figure 3 It is an assembly view of the driving threaded rod and the combing plate of the utility model;

[0019] Figure 4 It is a structure enlarged view of A in the utility model Figure 2

[0020] Figure 5 It is a structure enlarged view of B in the utility model Figure 3

[0021] ​​In the figure: 1, transmission track; 2, cover plate; 3, driving threaded rod; 4, carding plate; 5, guide rod; 6, tightening frame; 7, transmission rod; 8, plug-in column; 9, transmission bearing; 10, transmission block; 11, transmission roller. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be apparently and completely described in connection with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor belong to the scope of protection of the utility model.

[0023] Please refer to Figures 1-5 The embodiment provides a taping machine's tape feeding mechanism, including transmission track 1 and cover plate 2 for tape transmission, cover plate 2 is fixedly installed at the top of transmission track 1, the bottom of transmission track 1 is provided with the tightening assembly for preventing tape from wrinkling, wherein the tape is placed between transmission track 1 and cover plate 2, transmission track 1 can support the movement of tape, prevent the fracture of tape due to the emptying of tape when the patch is taken off from the tape.

[0024] The tightening assembly includes tightening frame 6 and transmission rod 7, the bottom of transmission track 1 is provided with the tightening frame 6 for tightening the tape on both sides, two tightening frames 6 are sleeved on the outside of the tape, the bottom of transmission track 1 is provided with a winding roller and a unwinding roller on both sides, two tightening frames 6 are located between the unwinding roller and the winding roller, the free end of the tape is taken off from the outside of the unwinding roller and passes through the inside of one of the tightening frames 6, then passes through the top of transmission track 1, and then passes through the inside of the other tightening frame 6 and is fixed on the outside of the winding roller, and the movement of the tape can be realized by rotating the winding roller and winding the tape.

[0025] The bottom of the transmission track 1 is fixedly provided with a bidirectional motor, both power output ends of the bidirectional motor are fixedly provided with transmission rods 7, both sides of the two tightening frames 6 are provided with threaded holes matched with the transmission rods 7, and the ends of the two transmission rods 7 away from the bidirectional motor penetrate through the threaded holes and extend into the inner cavities of the tightening frames 6. The outer wall of the transmission rod 7 is provided with a threaded groove matched with the threaded hole. The inner wall of the tightening frame 6 away from the mounting hole is symmetrically provided with plug-in columns 8 matched with the external eyelets of the braid. When the braid is raised or wrinkled during movement, the bidirectional motor is started. At this time, the two transmission rods 7 rotate simultaneously with the power output ends of the bidirectional motor. Under the cooperation of the threaded hole and the threaded groove, the two tightening frames 6 move simultaneously towards the bidirectional motor until the plug-in columns 8 on the inner walls of the two tightening frames 6 are inserted into the external eyelets of the braid. With the movement of the two tightening frames 6, the braid between the two tightening frames 6 is stretched, so that the raised part and the wrinkled part of the braid become flat, which is beneficial to the continuous movement of the braid and the continuous removal of the patch, and reduces the time and effort required when the patch is removed from the outside of the braid.

[0026] The outer wall of the transmission rod 7 is fixedly provided with a transmission bearing 9, and the outer wall of the transmission bearing 9 is fixedly provided with a connecting block connected to the bottom of the transmission track 1. The transmission bearing 9 can support the transmission rod 7, improve the stability of the rotation of the transmission rod 7, effectively reduce the resistance of the rotation of the transmission rod 7, and improve the smoothness of the rotation of the transmission rod 7.

[0027] The bottom of the transmission track 1 is symmetrically provided with guide rods 5, and both sides of the two tightening frames 6 are provided with guide holes matched with the guide rods 5. When the tightening frame 6 moves, the guide rod 5 can define the movement track of the tightening frame 6 under the cooperation of the guide hole, prevent the tightening frame 6 from shaking and deviating during movement, and improve the stability of the back-and-forth movement of the tightening frame 6.

[0028] As a preferred embodiment, one end of the cover plate 2 is provided with a sliding groove along the top thereof, a carding plate 4 for carding the outer wall of the braid is slidably installed in the inner cavity of the sliding groove, the top of the carding plate 4 is fixedly provided with a transmission block 10, one side of the transmission block 10 is provided with a spiral groove, a drive threaded rod 3 is threadedly and telescopically installed in the inner cavity of the spiral groove, and the top of the cover plate 2 is fixedly provided with a drive motor for driving the rotation of the drive threaded rod 3. When the drive motor is started, the drive threaded rod 3 rotates, the carding plate 4 moves back and forth along the sliding groove under the cooperation of the threaded connection, thereby carding the top of the braid back and forth, effectively preventing the braid from being wrinkled or raised during back-and-forth movement.

[0029] The bottom of the carding plate 4 is rotatably installed with a transmission roller 11 through a rotating shaft, the outer wall of the transmission roller 11 and the top of the braided belt are mutually attached, when the carding plate 4 moves back and forth, the transmission roller 11 rotates accordingly, thereby reducing the resistance of the carding plate 4 moving back and forth and the resistance suffered by the braided belt when moving, and improving the fluency of the carding plate 4 and the braided belt moving.

[0030] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tape feeder for a chip mounter, characterized by: It includes a transmission track (1) for braided transmission and a cover plate (2), the cover plate (2) is fixedly installed on the top of the transmission track (1), the bottom of the transmission track (1) is provided with a tightening assembly for preventing the braided belt from wrinkling; The tightening assembly includes a tightening frame (6) and a transmission rod (7), the bottom of the transmission track (1) is provided with a tightening frame (6) for tightening the braided belt on both sides, both tightening frames (6) are sleeved on the outside of the braided belt, a bidirectional motor is fixedly installed on the bottom of the transmission track (1), both power output ends of the bidirectional motor are fixedly installed with transmission rods (7), both sides of the two tightening frames (6) are provided with threaded holes matched with the transmission rods (7), and the ends of the two transmission rods (7) away from the bidirectional motor penetrate through the threaded holes and extend into the inner cavities of the tightening frames (6), and the outer wall of the transmission rod (7) is provided with a threaded groove matched with the threaded hole. The inner wall of the tightening frame (6) away from the mounting hole is symmetrically provided with a plug-in column (8) matched with the outer eye of the braided belt.

2. The tape feeder of a pick-and-place machine according to claim 1, wherein: The outer wall of the transmission rod (7) is fixedly sleeved with a transmission bearing (9), and the outer wall of the transmission bearing (9) is fixedly installed with a connecting block connected with the bottom of the transmission track (1).

3. The tape feeder of a pick-and-place machine according to claim 1, wherein: The bottom of the transmission track (1) is symmetrically provided with a guide rod (5), and both sides of the two tightening frames (6) are provided with guide holes matched with the guide rods (5).

4. The tape feeder of claim 1, wherein: One end of the cover plate (2) is provided with a sliding groove along the top thereof, a combing plate (4) for combing the outer wall of the braided belt is slidably installed in the inner cavity of the sliding groove, a transmission block (10) is fixedly installed on the top of the combing plate (4), a helical groove is formed in one side of the transmission block (10), a driving threaded rod (3) is threadedly and telescopically installed in the inner cavity of the helical groove, and a driving motor is fixedly installed on the top of the cover plate (2) and used for driving the threaded rod (3) to rotate.

5. The tape feeder of claim 4, wherein: The bottom of the combing plate (4) is rotatably installed with a transmission roller (11) through a rotating shaft, and the outer wall of the transmission roller (11) is attached to the top of the braided belt.

6. The tape feeder of claim 1, wherein: The bottom of the transmission track (1) is respectively provided with a winding roller and an unwinding roller on both sides, and the two tightening frames (6) are located between the unwinding roller and the winding roller.

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