Smt chip mounter feeding device

Abstract

The utility model discloses a kind of SMT chip mounter feeding devices, it is related to SMT chip mounter field, including support frame, the support frame top fixed installation has screening frame, one side inside screening frame is obliquely equipped with a conveyor belt, the other side inside screening frame is obliquely equipped with slide plate, screening frame is close to the slide plate one side two ends and is equipped with long guide rail, long guide rail inside is equipped with conveying component, long guide rail output end is fixedly equipped with discharge sleeve, long guide rail front end top is equipped with cover plate, the conveying belt is equipped with the material shifting component in the middle of the slide plate;The utility model is a kind of SMT chip mounter feeding device without need to program tape, compact structure, can cyclically adjust the position of bulk electronic component and continuously feed.

Description

Technical Field

[0001] This utility model mainly relates to the technical field of SMT pick and place machines, specifically to an SMT pick and place machine feeding device. Background Technology

[0002] The feeding device of an SMT pick-and-place machine is the core component for realizing automatic feeding of electronic components. Its function is to transport electronic components such as resistors, capacitors, and ICs in the form of tape, tray, or bulk through a precise mechanical transmission and control system to the pick-up position of the placement head in a set order and speed. It is a key link to ensure high-speed and high-precision placement of PCB boards. Existing SMT pick-and-place machine feeding devices usually use feeders to drive tape for feeding, which requires the electronic components to be packaged in the tape before use through a packaging process. It cannot transport bulk electronic components.

[0003] According to application number 201922316408.0, an SMT placement machine feeding device is provided, including a base plate, a cam unit, and a limiting unit. Four symmetrically distributed support legs are fixedly connected to the upper surface of the base plate. The upper ends of the support legs are fixedly connected to the horizontal parts of the corresponding L-shaped support plates. There are two L-shaped support plates. The vertical part of the front L-shaped support plate has a slot in the middle. A vertical plate is fixedly connected to the left end of the upper surface of the base plate. An electric drive belt is provided on the front side of the vertical plate. A fixing ring is fixedly connected to the middle of the front side of the vertical plate. A material cylinder is fixedly connected to the inner arc surface of the fixing ring. A hopper is fixedly connected to the upper surface of the material cylinder. The material cylinder and the electric drive belt are correspondingly arranged. A rotating shaft is fixedly connected to the middle of the upper surface of the base plate.

[0004] The aforementioned document describes how the SMT chip placement machine's chip feeding device can sequentially transport a large number of bulk chips one by one, avoiding chip accumulation and resulting chaos. However, it has the disadvantages of a large overall footprint and difficulty in multi-level arrangement and transport. Utility Model Content

[0005] Based on this, the purpose of this utility model is to provide a feeding device for an SMT placement machine to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A feeding device for an SMT placement machine includes a support frame. A screening frame is fixedly installed on the top of the support frame. A conveyor belt is inclined on one side inside the screening frame, and a lower slide plate is inclined on the other side inside the screening frame. Long guide rails are inserted through both ends of the screening frame near the lower slide plate. A conveying component is provided inside the long guide rails. A discharge sleeve is fixedly provided at the output end of the long guide rails. A cover plate is provided at the top front end of the long guide rails. A material feeding component is provided in the middle of the conveyor belt and the lower slide plate.

[0008] Preferably, two first drive wheels are internally supported and installed at both ends of the conveyor belt. The two ends of the first drive wheels are rotatably installed inside the screening frame. One end of the bottom first drive wheel is fixedly connected to a first worm gear. A first motor is fixedly installed at the bottom of the screening frame. The actuator end of the first motor is connected to a first worm, and the first worm meshes with the first worm gear.

[0009] Preferably, the lower slide plate is welded parallel to the conveyor belt to one side inside the screening frame, and a rectangular groove for the long guide rail to pass through is opened in the middle of the lower slide plate. A baffle is welded to the side of the lower slide plate near the conveyor belt.

[0010] Preferably, the conveying component includes two second drive wheels rotatably mounted at both ends inside the long guide rail, and a synchronous belt is rotatably sleeved on the outside of the two second drive wheels. An H-shaped plate is fixedly installed inside the long guide rail to support and limit the bottom of the synchronous belt. A second worm gear is fixedly connected to the central shaft of the second drive wheel on the outer side of one end of the long guide rail inside the screening frame. A second motor is fixedly installed in the middle layer inside the screening frame. The execution end of the second motor is connected to a second worm, and the second worm meshes with the second worm gear.

[0011] Preferably, a convex plate is fixedly provided in the middle of the discharge sleeve, and a pressure sensor is provided at one end of the inside of the discharge sleeve.

[0012] Preferably, one end of the cover plate is hinged to the top center of the long guide rail, and a pin is welded to the outer side of the other end of the cover plate. A sliding sleeve is fixedly installed on one side of the same end of the long guide rail. A tapered pin inserted into the pin is slidably installed inside the sliding sleeve. The tapered pin is connected to the inner end of the sliding sleeve by a spring. A push button is provided on one side of the sliding sleeve to fix the tapered pin.

[0013] Preferably, the feeding component includes a first arc-shaped plate welded to the bottom end of the lower slide plate, a second arc-shaped plate suspended above the top of the conveyor belt is mounted inside the screening frame, a first hook bar suspended above the long guide rail is welded to the middle of the baffle, and a second hook bar suspended above the long guide rail is welded to the inner side of the screening frame.

[0014] In summary, this technical solution has the following main advantages:

[0015] This invention uses a first motor to drive a conveyor belt to transport electronic components dumped in a screening box to the top. These components are then guided to a lower slide plate via a second arc-shaped plate. The first and second hooks in the material handling component respectively perform screening and ballast functions, ensuring that components entering the long guide rail meet the conveying position requirements. Uncollected components are returned to the conveyor belt for recycling through the cooperation of the lower slide plate and the first arc-shaped plate. This achieves the function of continuously and neatly transporting scattered electronic components onto the long guide rail without the need for tape weaving, thus neatly conveying the electronic components to the pick-up point of the SMT placement machine.

[0016] The worm gear transmission structure enables the motor to both reduce speed and increase torque, while also facilitating compact installation and multi-stage arrangement. Feeding via a long guide rail allows for easy docking with the feeding point. A pressure sensor monitors the status of components in the discharge sleeve in real time, providing a pick-up signal for subsequent mounting processes and controlling the second motor to pause, preventing material squeezing. The cover plate at the front end of the long guide rail, hinged to a pin and tapered pin, prevents components from falling out and allows for quick opening, meeting daily maintenance and cleaning needs and ensuring stable and efficient operation of the feeding device. Attached Figure Description

[0017] Figure 1 This is an isometric view of the overall structure of this utility model;

[0018] Figure 2 This is a right-side sectional view of the main structure of this utility model;

[0019] Figure 3 This is a left sectional view of the main structure of this utility model;

[0020] Figure 4 This is a top-view disassembled schematic diagram of the main structure of this utility model;

[0021] Figure 5 This is a partial structural breakdown diagram of the present invention.

[0022] Figure Descriptions: 10. Support frame; 11. Screening frame; 12. Conveyor belt; 13. Lower slide plate; 14. Long guide rail; 15. Conveying component; 16. Discharge sleeve; 17. Cover plate; 18. Feeding component; 121. First drive wheel; 122. First worm gear; 123. First motor; 124. First worm; 131. Rectangular groove; 132. Baffle; 151. Second drive wheel; 152. Synchronous belt; 153. H-shaped plate; 154. Second worm gear; 155. Second motor; 156. Second worm; 161. Convex plate; 162. Pressure sensor; 171. Pin; 172. Sliding sleeve; 173. Conical pin; 174. Push button; 175. Spring; 181. First arc-shaped plate; 182. Second arc-shaped plate; 183. First hook bar; 184. Second hook bar. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0024] Example

[0025] Please refer to the attached document carefully. Figure 1 , 3 As shown in Figure 4, an SMT placement machine feeding device includes a support frame 10. A screening frame 11 is fixedly installed on the top of the support frame 10. A conveyor belt 12 is inclined on one side inside the screening frame 11, and a sliding plate 13 is inclined on the other side inside the screening frame 11. Long guide rails 14 are passed through both ends of the screening frame 11 near the sliding plate 13. A conveying component 15 is provided inside the long guide rail 14. A discharge sleeve 16 is fixedly provided at the output end of the long guide rail 14. A cover plate 17 is provided at the top front end of the long guide rail 14. A material feeding component 18 is provided in the middle between the conveyor belt 12 and the sliding plate 13. Two first drive wheels 121 are supported and installed inside both ends of the conveyor belt 12. The two ends of the first drive wheels 121 are rotatably installed inside the screening frame 11. One end of the bottom first drive wheel 121 is fixedly connected to a first worm gear 1. 22. A first motor 123 is fixedly installed at the bottom of the screen frame 11. The first worm gear 124 is connected to the execution end of the first motor 123, and the first worm gear 124 meshes with the first worm wheel 122. The lower slide plate 13 is welded parallel to the conveyor belt 12 on one side of the screen frame 11. A rectangular groove 131 for passing through the long guide rail 14 is opened in the middle of the lower slide plate 13. A baffle 132 is welded to the side of the lower slide plate 13 near the conveyor belt 12. The feeding component 18 includes a first arc-shaped plate 181 welded to the bottom of the lower slide plate 13. A second arc-shaped plate 182 suspended above the top of the conveyor belt 12 is mounted inside the screen frame 11. A first hook bar 183 suspended above the long guide rail 14 is welded to the middle of the baffle 132. A second hook bar 184 suspended above the long guide rail 14 is welded to the inside of the screen frame 11.

[0026] As described above, the tiny electronic components required by the SMT pick and place machine are screened by the screening box 11 and then sequentially conveyed from the long guide rail 14 into the discharge sleeve 16, where they will be picked up by the SMT pick and place machine. The electronic components are then concentrated and poured into the screening box 11. First, the first motor 123 starts, and through the meshing transmission of the first worm gear 124 and the first worm wheel 122, it drives a first drive wheel 121 to rotate, thereby moving the inclined conveyor belt 12 to transport the electronic components from the bottom to the top. Through the deflection of the second arc-shaped plate 182, the electronic components are guided to the top of the lower slide plate 13. At this point, a large number of electronic components will be scattered on the long guide rail. Above 14 and carried forward by the conveyor component 15, the first hook 183 is suspended at a higher position, which can bounce off the misaligned and unstable electronic components back into the screening box 11 for further screening. The second hook 184 is suspended at a lower position, which can press the correctly positioned but unstable electronic components onto the long guide rail 14, so that they can be smoothly moved by the conveyor component 15. Electronic components that are not collected by the long guide rail fall to the bottom along the slide plate 13, are deflected by the first arc plate 181 and fall back to the bottom of the conveyor belt 12, repeating the cycle so that the long guide rail can continuously collect and move the electronic components forward.

[0027] Please refer to the attached document carefully. Figure 1 , 2 As shown in Figures 3 and 5, the conveying component 15 includes two second drive wheels 151 rotatably mounted at both ends inside the long guide rail 14. A synchronous belt 152 is rotatably sleeved around the two second drive wheels 151. An H-shaped plate 153 is fixedly installed inside the long guide rail 14 to support and limit the bottom of the synchronous belt 152. A second worm gear 154 is fixedly connected to the central shaft of the second drive wheels 151 at one end of the long guide rail 14 inside the screening frame 11. A second motor 155 is fixedly installed in the middle layer inside the screening frame 11. A second worm gear 156 is connected to the actuating end of the second motor 155. 156 engages with the second worm gear 154; a convex plate 161 is fixedly provided in the middle of the discharge sleeve 16, and a pressure sensor 162 is provided at one end of the discharge sleeve 16; one end of the cover plate 17 is hinged to the top center of the long guide rail 14, and a pin 171 is welded to the outer side of the other end of the cover plate 17; a sliding sleeve 172 is fixedly installed on one side of the same end of the long guide rail 14; a tapered pin 173 is slidably installed inside the sliding sleeve 172 and inserted into the pin 171; the tapered pin 173 is connected to the inner end of the sliding sleeve 172 by a spring 175; a push button 174 is provided on one side of the sliding sleeve 172 to fix and connect the tapered pin 173.

[0028] As described above, the first motor 123 and the second motor 155 drive the first drive wheel 121 and the second drive wheel 151 through a worm gear linkage. This not only allows for motor deceleration to increase transmission torque but also facilitates the starting of the first motor 123 and the installation of the second motor 155 into the screening frame 11, resulting in a more compact overall structure. The pressure sensor 162 transmits signals to the PLC controller, which controls the start and stop of the second motor 155 through a preset program. The long guide rail 14 runs through both ends of the screening frame 11. The internal conveying component 15 consists of the second drive wheel 151, the synchronous belt 152, and the H-shaped plate 153. The second drive wheel 151 meshes with the second worm 156 at the output end of the second motor 155 through the second worm gear 154. The second motor 155 drives the second worm 156 to rotate, which in turn drives the second worm gear 154 and the second drive wheel 151 to rotate. This causes the synchronous belt 152 to run smoothly under the constraint of the H-shaped plate 153, conveying electronic components from the input end of the long guide rail 14. The discharge sleeve 16 is sent to the output end; the convex plate 161 in the middle of the discharge sleeve 16 temporarily stores the electronic components. At the same time, when the electronic components enter the discharge sleeve 16, they will squeeze the pressure sensor 162 at the front end. The pressure sensor 162 can send an electrical signal to determine that the electronic components have been placed, providing signal feedback for the subsequent mounting process and triggering retrieval. At the same time, the electrical signal sent by the pressure sensor 162 can stop the second motor 155 through the electronic control system to prevent the extrusion caused by continuous discharge. The cover plate 17 at the top of the front end of the long guide rail 14 can prevent the electronic components from falling to the outside during discharge. The cover plate 17 opens and closes through a hinge structure. When closed, the pin 171 is inserted into the sliding sleeve 172, and the tapered pin 173 is locked by the spring 175 to lock the cover plate 17. The operator can press the push button 174 to drive the tapered pin 173 to disengage from the pin 171, making it convenient to open the cover plate 17 to maintain or clean the inside of the long guide rail 14.

[0029] The above embodiments are only for illustrating the technical concept of this utility model and should not be construed as limiting the scope of protection of this utility model. Any modifications made to the technical solution based on the technical concept proposed by this utility model shall fall within the scope of protection of this utility model.

Claims

1. A feeding device for an SMT placement machine, comprising a support frame (10), wherein a screening frame (11) is fixedly mounted on the top of the support frame (10), characterized in that, A conveyor belt (12) is inclined on one side inside the screening frame (11), and a sliding plate (13) is inclined on the other side inside the screening frame (11). Long guide rails (14) are provided at both ends of the screening frame (11) near the sliding plate (13). A conveying component (15) is provided inside the long guide rail (14). A discharge sleeve (16) is fixedly provided at the output end of the long guide rail (14). A cover plate (17) is provided at the top front end of the long guide rail (14). A material feeding component (18) is provided in the middle of the conveyor belt (12) and the sliding plate (13).

2. The SMT pick-and-place machine feeding device according to claim 1, characterized in that, Two first drive wheels (121) are internally supported at both ends of the conveyor belt (12). The first drive wheels (121) are rotatably installed inside the screening frame (11). One end of the bottom first drive wheel (121) is fixedly connected to a first worm gear (122). A first motor (123) is fixedly installed at the bottom of the screening frame (11). The execution end of the first motor (123) is connected to a first worm (124). The first worm (124) meshes with the first worm gear (122).

3. The SMT pick-and-place machine feeding device according to claim 1, characterized in that, The lower slide plate (13) is welded parallel to the conveyor belt (12) on one side inside the screening frame (11). A rectangular groove (131) for the long guide rail (14) to pass through is opened in the middle of the lower slide plate (13). A baffle (132) is welded on the side of the lower slide plate (13) near the conveyor belt (12).

4. The SMT pick-and-place machine feeding device according to claim 1, characterized in that, The conveying component (15) includes two second drive wheels (151) rotatably mounted inside both ends of the long guide rail (14). A synchronous belt (152) is rotatably sleeved on the outside of the two second drive wheels (151). An H-shaped plate (153) is fixedly installed inside the long guide rail (14) to support and limit the bottom of the synchronous belt (152). A second worm gear (154) is fixedly connected to the central shaft of the second drive wheel (151) on the outer side of one end of the long guide rail (14) inside the screening frame (11). A second motor (155) is fixedly installed in the middle layer inside the screening frame (11). A second worm (156) is connected to the execution end of the second motor (155). The second worm (156) meshes with the second worm gear (154).

5. The SMT pick-and-place machine feeding device according to claim 1, characterized in that, A convex plate (161) is fixedly provided in the middle of the discharge sleeve (16), and a pressure sensor (162) is provided at one end of the discharge sleeve (16).

6. The SMT placement machine feeding device according to claim 1, characterized in that, One end of the cover plate (17) is hinged to the top center of the long guide rail (14). A pin (171) is welded to the outer side of the other end of the cover plate (17). A sliding sleeve (172) is fixedly installed on one side of the same end of the long guide rail (14). A tapered pin (173) inserted into the pin (171) is slidably installed inside the sliding sleeve (172). The tapered pin (173) is connected to the inner end of the sliding sleeve (172) by a spring (175). A push button (174) is provided on one side of the sliding sleeve (172) to fix the tapered pin (173).

7. The SMT placement machine feeding device according to claim 3, characterized in that, The feeding component (18) includes a first arc-shaped plate (181) welded to the bottom of the lower slide plate (13), a second arc-shaped plate (182) suspended above the top of the conveyor belt (12) is mounted inside the screening frame (11), a first hook bar (183) suspended above the long guide rail (14) is welded to the middle of the baffle (132), and a second hook bar (184) suspended above the long guide rail (14) is welded to the inner side of the screening frame (11).

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