Electronic component taping device

Abstract

This utility model discloses an electronic component surface mount feeding device, belonging to the field of surface mount technology. It includes a fixed plate, with a fixed shaft rotatably connected to its side. The fixed shaft has four sets of slots evenly spaced along its side. The fixed shaft has an interior cavity, communicating with the slots and the cavity. A stop block slides within the slot, elastically connected to the cavity wall. An adjusting shaft is coaxially rotatably connected within the cavity. Four sets of protrusions are evenly installed circumferentially on the side of the adjusting shaft, capable of pressing against the stop block. A connecting shaft is rotatably connected to the end face of the fixed shaft, coaxially connected to the adjusting shaft. A handwheel and a fixing component are mounted on the outer side of the connecting shaft for locking the connecting shaft. A pair of drive wheels are rotatably connected to the same side of the fixed plate, and a driving component is mounted on the other side of the fixed plate, driving the pair of drive wheels to rotate synchronously in opposite directions. This technical solution achieves rapid tray replacement and stable fixation, shortening tray replacement time.

Description

Technical Field

[0001] This utility model relates to the field of surface mount technology, specifically to a surface mount feeding device for electronic components. Background Technology

[0002] In the surface mount technology production line of the electronics manufacturing industry, the electronic component placement feeding device is the core hub connecting the component storage and the placement equipment. Its main function is to accurately and continuously transport the roll material to the pick-up station of the placement head, providing a stable supply of components for the automated placement process.

[0003] Currently, existing surface mount component (SMT) feeding systems suffer from significant operational bottlenecks in the tray replacement process. Traditional feeding systems typically employ a single-tray fixed structure, with the tray rigidly locked to the feeding base by bolts or clips. When a roll of components runs out or a different component model needs to be switched, the machine must be stopped, the fixing bolts manually removed, the empty tray taken out, a new tray installed, the tape position recalibrated, and the fixing structure tightened again. This entire process is time-consuming. For multi-variety, small-batch production scenarios, frequent tray replacements result in a high proportion of downtime, thus hindering production efficiency.

[0004] Therefore, in order to address the problems of cumbersome material tray replacement and long downtime in existing feeding devices, there is an urgent need to design a patch feeding device with rapid material replacement and stable positioning to meet the demand for efficient and precise material feeding in flexible production. Utility Model Content

[0005] The purpose of this invention is to provide an electronic component surface mount feeding device to solve the problems mentioned in the background art.

[0006] In view of the above problems, the technical solution proposed by this utility model is as follows: An electronic component surface mount feeding device includes a fixed plate, a fixed shaft rotatably connected to the side of the fixed plate, four sets of slots evenly spaced on the side of the fixed shaft, a cavity inside the fixed shaft, the slots communicating with the cavity, a stop block sliding within the slot, the stop block elastically connected to the wall of the cavity, an adjusting shaft rotatably connected coaxially within the cavity, four sets of protrusions evenly installed on the side of the adjusting shaft, the protrusions pressing against the stop block, a connecting shaft rotatably connected to the end face of the fixed shaft, the connecting shaft and the adjusting shaft coaxially connected, a handwheel mounted on the outer side of the connecting shaft, and a fixing member mounted on the outer side of the connecting shaft for locking the connecting shaft, the same side of the fixed plate also rotating... A pair of drive wheels are connected to the fixed plate, and a drive component is installed on the other side of the fixed plate. The drive component drives the pair of drive wheels to rotate synchronously in opposite directions. A pair of fixing blocks with through holes are installed on the bottom surface of the other side of the fixed plate. The fixing blocks can quickly fix the device in a designated position on the production line, making installation convenient and the position stable. With the cooperation of handwheel, connecting shaft, adjusting shaft, protrusion and stop block, it can quickly clamp and fix material trays with different inner diameters without changing special fixtures, and has strong adaptability. The setting of the fixing component can ensure that the material tray will not loosen after it is fixed, ensuring the stability of the material feeding process. The synchronous reverse rotation of the drive wheels can realize the continuous and accurate delivery of the material strip, providing a stable guarantee for the pick-up of the chip head and reducing the chip placement errors caused by unstable material feeding.

[0007] Furthermore, the fastener includes a second anti-loosening washer elastically connected to the connecting shaft and a first anti-loosening washer installed on the end face of the fixed shaft. The second anti-loosening washer and the first anti-loosening washer engage, and the second anti-loosening washer, the first anti-loosening washer, the fixed shaft, and the connecting shaft are arranged coaxially. Through the engagement of the first anti-loosening washer and the second anti-loosening washer, reliable locking of the connecting shaft is achieved, with a significant anti-loosening effect, which can effectively resist vibration interference during device operation. Compared with the traditional bolt locking method, there is no need to repeatedly disassemble the bolt, making the operation more convenient. At the same time, it avoids the thread wear problem caused by repeated bolt disassembly and extends the service life of the component.

[0008] Furthermore, a pair of sliding grooves are axially formed on the outer side of the connecting shaft. The second anti-loosening washer slides on the outer side of the connecting shaft, and a pair of sliders are installed on the inner ring of the second anti-loosening washer. The sliders slide in the sliding grooves, and a first spring connects the sliders and the end of the sliding grooves away from the first anti-loosening washer. The cooperation between the sliding grooves and the sliders restricts the rotation of the second anti-loosening washer, ensuring that it can only slide along the axial direction of the connecting shaft, thus ensuring the stability of the locking and unlocking actions. The elasticity of the first spring enables the automatic reset and engagement of the second anti-loosening washer, eliminating the need for manual alignment and locking, making the operation more labor-saving and efficient. At the same time, the spring force ensures that the second anti-loosening washer and the first anti-loosening washer always maintain a tight engagement, further improving the reliability of the anti-loosening action.

[0009] Furthermore, connecting blocks are installed on both sides of the abutment block, and the connecting blocks are located inside the cavity. A second spring is connected between the connecting block and the wall of the cavity. The cooperation between the second spring and the connecting block realizes the automatic reset of the abutment block, eliminating the need for manual pushing of the abutment block to reset, simplifying the material tray disassembly process and improving material changing efficiency. At the same time, during the process of the abutment block clamping the material tray, the elasticity of the second spring can play a certain buffering role, avoiding hard contact between the abutment block and the material tray, which would cause damage to the material tray and protect the material tray and internal electronic components.

[0010] Furthermore, a pair of pins are rotatably connected to the same side of the fixed plate, and a pair of drive wheels are coaxially mounted on the outer side of the pins. The drive component includes a base located on the other side of the fixed plate. A motor and a reducer are mounted on the top surface of the base. The output end of the motor and the input end of the reducer are connected in a transmission manner, and the output end of the reducer is connected in a transmission manner to one of the pins. Gears are mounted on the outer side of each pair of pins, and the two gears mesh with each other. The cooperation between the motor and the reducer can precisely adjust the speed of the drive wheels to meet the conveying speed requirements of different specifications of material belts, and has strong adaptability. The gear meshing transmission can ensure that the pair of drive wheels rotate synchronously in opposite directions, ensuring a smooth material belt conveying process, avoiding material belt deviation, and improving feeding accuracy. The entire drive system has a stable structure and high power transmission efficiency, and can provide continuous and reliable power for material belt conveying, reducing the problem of material supply interruption caused by insufficient power or unstable transmission.

[0011] Furthermore, both the top surface of the abutment and the top surface of the protrusion are curved surfaces. The curved surface design reduces local wear when the abutment and the protrusion are in contact, extending their service life. It also reduces frictional resistance during adjustment, making it easier for operators to turn the handwheel to adjust the position of the abutment and improving operational convenience. It avoids adjustment accuracy deviations caused by contact jamming, ensuring that the abutment can be accurately moved to the designated position to clamp the material tray and ensuring the stability of the material tray.

[0012] Furthermore, the drive wheel is fitted with an anti-slip strip. The anti-slip strip solves the slippage problem during the material conveying process, ensuring that the material is accurately conveyed to the picking station according to the preset speed and path, reducing picking errors of the chip head caused by slippage, and improving the yield of chip assembly production. At the same time, the anti-slip strip can also protect the material, preventing the drive wheel from directly contacting the material and causing wear, thus protecting the electronic components inside the material.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This electronic component surface mount feeding device, through the cooperation of handwheel, connecting shaft, adjusting shaft, protrusion and stop block, can quickly clamp or loosen the material tray by rotating the handwheel to drive the protrusion on the adjusting shaft to squeeze the stop block, without the need to disassemble bolts or change clamps; at the same time, the combination of the second anti-loosening washer, the first anti-loosening washer, the slider and the first spring, can release the lock by pulling the second anti-loosening washer, and after adjustment, the first spring will automatically push it to reset and engage, replacing the cumbersome operation of repeatedly disassembling bolts in the traditional way, simplifying the material tray replacement process, thereby reducing downtime. Attached Figure Description

[0014] Figure 1 This is a first three-dimensional structural schematic diagram of the electronic component surface mount feeding device disclosed in an embodiment of the present utility model; Figure 2 for Figure 1 Enlarged schematic diagram of structure A in the middle; Figure 3 This is a second three-dimensional structural schematic diagram of the electronic component surface mount feeding device disclosed in an embodiment of the present utility model; Figure 4 This is a cross-sectional structural schematic diagram of the electronic component surface mount feeding device disclosed in an embodiment of this utility model; Figure 5 for Figure 4 A magnified schematic diagram of the B-structure.

[0015] In the diagram: 1. Fixing plate; 2. Fixing block; 3. Fixing shaft; 4. Connecting shaft; 5. Handwheel; 6. First anti-loosening washer; 7. Second anti-loosening washer; 8. Abutment block; 9. Pin shaft; 10. Drive wheel; 11. Base; 12. Motor; 13. Reducer; 14. Slide groove; 15. Slider; 16. First spring; 17. Anti-slip strip; 18. Adjusting shaft; 19. Protrusion; 20. Connecting block; 21. Second spring. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1 - Figure 5This utility model provides a technical solution: an electronic component surface mount feeding device, including a fixed plate 1, a fixed shaft 3 rotatably connected to the side of the fixed plate 1, four sets of slots evenly spaced on the side of the fixed shaft 3, a cavity inside the fixed shaft 3, the slots and the cavity communicating, abutment blocks 8 sliding in the slots, the abutment blocks 8 elastically connected to the wall of the cavity, an adjusting shaft 18 rotatably connected coaxially in the cavity, four sets of protrusions 19 evenly installed on the side of the adjusting shaft 18, the protrusions 19 can press the abutment blocks 8, a connecting shaft 4 rotatably connected to the end face of the fixed shaft 3, the connecting shaft 4 and the adjusting shaft 18 are connected to the cavity. The connecting shaft 18 is coaxially connected. A handwheel 5 is installed on the outer side of the connecting shaft 4, and a fixing component is also installed on the outer side of the connecting shaft 4 to lock the connecting shaft 4. A pair of drive wheels 10 are rotatably connected to the same side of the fixing plate 1. A drive component is installed on the other side of the fixing plate 1, which drives the pair of drive wheels 10 to rotate synchronously in opposite directions. A pair of fixing blocks 2 with through holes are installed on the bottom surface of the other side of the fixing plate 1. In use, the entire feeding device is first fixed at the designated position on the surface of the chip assembly line by using the fixing blocks 2 on the bottom surface of the fixing plate 1 and fastening bolts or other fasteners through the through holes on the fixing blocks 2. When it is necessary to install the material tray, the material tray is placed on the outside of the fixing shaft 3, and the handwheel 5 is turned. The handwheel 5 drives the connecting shaft 4 to rotate, and the connecting shaft 4 synchronously drives the adjusting shaft 18 to rotate within the cavity of the fixing shaft 3. When the adjusting shaft 18 rotates, the protrusion 19 on its side rotates accordingly. When the protrusion 19 contacts the abutment 8, it squeezes the abutment 8, causing the abutment 8 to slide outward in the slot of the fixed shaft 3 until the abutment 8 is in close contact with the inner wall of the tray, thus clamping and fixing the tray. At this time, the connecting shaft 4 is locked by the fixing part on the outside of the connecting shaft 4 to prevent the abutment 8 from loosening due to accidental rotation of the adjusting shaft 18. In the subsequent feeding process, the drive unit starts, driving a pair of drive wheels 10 to rotate synchronously in opposite directions. After the material is drawn out from the tray, it passes between the pair of drive wheels 10. The rotation of the drive wheels 10 drives the material to be transported to the pick-up station of the patch head.

[0018] As an embodiment of this utility model, the fixing component further includes a second anti-loosening washer 7 elastically connected to the connecting shaft 4 and a first anti-loosening washer 6 installed on the end face of the fixed shaft 3. The second anti-loosening washer 7 and the first anti-loosening washer 6 are engaged, and the second anti-loosening washer 7, the first anti-loosening washer 6, the fixed shaft 3, and the connecting shaft 4 are arranged coaxially. When the handwheel 5 is rotated to clamp the material tray with the abutment 8, due to the elastic connection between the second anti-loosening washer 7 and the connecting shaft 4, the second anti-loosening washer 7 will move towards the first anti-loosening washer 6 under the action of elastic force until the second anti-loosening washer 7 and the first anti-loosening washer 6 are tightly engaged. This engagement structure can restrict the rotation of the connecting shaft 4 relative to the fixed shaft 3, thereby locking the position of the connecting shaft 4 and preventing the connecting shaft 4 from rotating unexpectedly due to factors such as vibration during the operation of the device. This prevents the adjustment shaft 18 from rotating and causing the abutment 8 to loosen, ensuring that the material tray always maintains a stable clamping state.

[0019] As an embodiment of this utility model, a pair of sliding grooves 14 are further provided on the outer side of the connecting shaft 4. The second anti-loosening washer 7 slides on the outer side of the connecting shaft 4, and a pair of sliders 15 are installed on the inner ring of the second anti-loosening washer 7. The sliders 15 slide in the sliding grooves 14, and a first spring 16 is connected between the sliders 15 and the end of the sliding grooves 14 away from the first anti-loosening washer 6. When it is necessary to rotate the handwheel 5 to adjust the position of the stop block 8, the second anti-loosening washer 7 is pulled away from the first anti-loosening washer 6. The sliders 15 on the inner ring of the second anti-loosening washer 7 slide along the sliding grooves 14 of the connecting shaft 4. At the same time, the sliders 15 compress the first spring 16, so that the second anti-loosening washer 7 is separated from the first anti-loosening washer 6, and the locking is released. At this time, the handwheel 5 can be rotated freely. After adjustment, the second anti-loosening washer 7 is released, the first spring 16 returns to its elastic deformation, pushes the slider 15 along the slide groove 14 towards the direction close to the first anti-loosening washer 6, and drives the second anti-loosening washer 7 to move synchronously until it re-engages with the first anti-loosening washer 6, thus achieving automatic locking.

[0020] In one embodiment of this utility model, connecting blocks 20 are installed on both sides of the abutment block 8, and the connecting blocks 20 are located inside the cavity. A second spring 21 is connected between the connecting blocks 20 and the wall of the cavity. When the protrusion 19 on the adjusting shaft 18 presses against the abutment block 8, the abutment block 8 drives the connecting blocks 20 on both sides to move towards the cavity wall. The connecting blocks 20 compress the second spring 21, and the second spring 21 stores elastic potential energy. When it is necessary to remove the tray, the handwheel 5 is rotated in the opposite direction to move the protrusion 19 on the adjusting shaft 18 away from the abutment block 8. The second spring 21 releases its elastic potential energy, pushes the connecting blocks 20 to move in the opposite direction, and the connecting blocks 20 drive the abutment block 8 to slide inward in the slot, returning to the initial position, releasing the clamping of the tray, and facilitating the removal of the tray.

[0021] In one embodiment of this utility model, a pair of pins 9 are rotatably connected to the same side of the fixed plate 1. A pair of drive wheels 10 are coaxially mounted on the outer side of the pins 9. The driving component includes a base 11 located on the other side of the fixed plate 1. A motor 12 and a reducer 13 are mounted on the top surface of the base 11. The output end of the motor 12 is connected to the input end of the reducer 13. The output end of the reducer 13 is connected to one of the pins 9. Gears are mounted on the outer side of each pair of pins 9, and the gears mesh with each other. When the motor 12 is started, the motor 12 outputs power and transmits the power to the reducer 13. The reducer 13 reduces the high speed and low torque output of the motor 12 to increase the torque, so that the output speed and torque meet the requirements of the conveyor belt. Subsequently, the reducer 13 transmits the processed power to the pin 9 connected to it, driving the pin 9 to rotate. Since the gears on the outer side of the pair of pins 9 mesh with each other, the actively rotating pin 9 drives the other pin 9 to rotate synchronously in the opposite direction through gear meshing transmission. Two pins 9 drive the drive wheels 10 connected to them on the same axis to rotate synchronously in opposite directions. When the material belt passes between the two drive wheels 10, the friction between the drive wheels 10 and the material belt drives the material to be conveyed to the pick-up station of the mounting head.

[0022] In one embodiment of this utility model, both the top surface of the abutment 8 and the top surface of the protrusion 19 are curved surfaces. When the adjusting shaft 18 drives the protrusion 19 to rotate and press against the abutment 8, the curved surface of the protrusion 19 contacts the curved surface of the abutment 8. Compared with planar contact, curved surface contact allows the force exerted by the protrusion 19 on the abutment 8 to be distributed more evenly on the contact surface, reducing local stress concentration. At the same time, the curved surface structure can reduce the frictional resistance between the protrusion 19 and the abutment 8, making the process of the protrusion 19 rotating and pressing against the abutment 8 smoother and avoiding jamming.

[0023] In one embodiment of this utility model, an anti-slip strip 17 is further adhered to the side of the drive wheel 10. During the conveying process of the drive wheel 10 driving the material belt, the anti-slip strip 17 on the side of the drive wheel 10 directly contacts the material belt. The anti-slip strip 17 is made of a material with a high coefficient of friction, which can significantly increase the friction between the drive wheel 10 and the material belt. When the drive wheel 10 rotates, it can effectively prevent the material belt from slipping on the surface of the drive wheel 10, ensuring that the rotation of the drive wheel 10 can stably drive the material conveying.

[0024] Specifically, during feeding, the free end of the material tape on the material tray is drawn out, and the material tape is manually pulled to pass between a pair of driving wheels 10, so as to ensure that the material tape fits closely against the anti-slip belts 17 on the side surfaces of the driving wheels 10. According to the specification of the material tape, the motor speed is adjusted through the controller matched with the motor 12. After the power output by the motor 12 is decelerated and torque-increased by the reducer 13, the power is transmitted to one of the pin shafts 9, and the pin shaft 9 drives the other pin shaft 9 to rotate synchronously and reversely through gear meshing, thereby enabling the pair of driving wheels 10 to rotate reversely. The anti-slip belts 17 increase the friction force with the material tape to avoid slipping of the material tape, and the driving wheels 10 stably drive the material tape to convey towards the material picking station of the placement head. During the conveying process, the fixed shaft 3 rotates along with the material tray, and the abutting block 8 always abuts tightly against the inner wall of the material tray under the action of the second spring 21, so as to ensure stable rotation of the material tray.

[0025] It should be noted that all standard parts used in this application document can be purchased from the market, and can be customized according to the records in the description and drawings. The specific connection modes of all parts adopt mature conventional means in the prior art such as bolts, rivets and welding. Machinery, parts and equipment all adopt conventional models in the prior art. The control mode is automatically controlled through the control cabinet, and the control circuit can be realized through simple programming by technicians in the art, which belongs to common knowledge in the art. Moreover, this application document is mainly used to protect the mechanical device, so this application document will not explain the control mode and circuit connection in detail.

Claims

1. A surface mount feeding device for electronic components, characterized in that, Includes a fixed plate (1), on which a fixed shaft (3) is rotatably connected. The fixed shaft (3) has four sets of slots circumferentially spaced on its side. The fixed shaft (3) has an internal cavity, and the slots and cavity are connected. A stop block (8) slides within the slot, and the stop block (8) is elastically connected to the wall of the cavity. An adjusting shaft (18) is rotatably connected coaxially within the cavity. Four sets of protrusions (19) are evenly installed circumferentially on the side of the adjusting shaft (18), and the protrusions (19) can press against the stop block (8). The fixed shaft (3) has an end... A connecting shaft (4) is rotatably connected to the surface. The connecting shaft (4) and the adjusting shaft (18) are coaxially connected. A handwheel (5) is installed on the outside of the connecting shaft (4). A fixing member is installed on the outside of the connecting shaft (4). The fixing member is used to lock the connecting shaft (4). A pair of drive wheels (10) are rotatably connected to the same side of the fixing plate (1). A driving member is installed on the other side of the fixing plate (1). The driving member drives the pair of drive wheels (10) to rotate synchronously in opposite directions. A pair of fixing blocks (2) with through holes are installed on the bottom surface of the other side of the fixing plate (1).

2. The electronic component surface mount feeding device according to claim 1, characterized in that, The fastener includes a second anti-loosening washer (7) that is elastically connected to the connecting shaft (4) and a first anti-loosening washer (6) installed on the end face of the fixed shaft (3). The second anti-loosening washer (7) and the first anti-loosening washer (6) engage with each other, and the second anti-loosening washer (7), the first anti-loosening washer (6), the fixed shaft (3), and the connecting shaft (4) are arranged coaxially.

3. The electronic component surface mount feeding device according to claim 2, characterized in that, A pair of sliding grooves (14) are axially provided on the outer side of the connecting shaft (4). The second anti-loosening pad (7) slides on the outer side of the connecting shaft (4), and a pair of sliders (15) are installed on the inner ring of the second anti-loosening pad (7). The sliders (15) slide in the sliding grooves (14), and a first spring (16) is connected between the end of the sliders (15) and the sliding grooves (14) away from the first anti-loosening pad (6).

4. The electronic component surface mount feeding device according to claim 1, characterized in that, Connecting blocks (20) are installed on both sides of the abutment (8), and the connecting blocks (20) are located in the cavity. A second spring (21) is connected between the connecting blocks (20) and the wall of the cavity.

5. The electronic component surface mount feeding device according to claim 1, characterized in that, A pair of pins (9) are rotatably connected to the same side of the fixed plate (1). A pair of drive wheels (10) are coaxially mounted on the outside of the pins (9). The drive component includes a base (11) located on the other side of the fixed plate (1). A motor (12) and a reducer (13) are mounted on the top surface of the base (11). The output end of the motor (12) and the input end of the reducer (13) are connected in a transmission connection. The output end of the reducer (13) is connected in a transmission connection with one of the pins (9). Gears are mounted on the outside of both pins (9), and the pair of gears mesh with each other.

6. The electronic component surface mount feeding device according to claim 1, characterized in that, The top surface of the abutment (8) and the top surface of the protrusion (19) are both arc surfaces.

7. The electronic component surface mount feeding device according to claim 1, characterized in that, The drive wheel (10) has an anti-slip strip (17) glued to its side.

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