Automobile door hinge conveying and feeding machine

Abstract

The invention relates to the technical field of automobile door hinge conveying, and discloses an automobile door hinge conveying and feeding machine which comprises a storage bin, the side wall of the storage bin is connected with a push plate feeding mechanism, the tail end of the push plate feeding mechanism is connected with a linear vibration rail, and the linear vibration rail is connected with a multi-station distributing mechanism to move. The multi-station material distributing mechanism comprises a conveying belt, a plurality of material blocking air cylinders are arranged above the conveying belt, and each material blocking air cylinder is provided with a sensor. According to the automatic material blocking device, each material blocking air cylinder acts in the mode that each corresponding sensor senses that the automobile door hinge arrives at the designated position, and the eighth material blocking air cylinder has the side material blocking function of ascending and descending; after the door hinge is taken away, the door hinge descends, meanwhile, the conveying belt is started to convey the door hinge, one-time feeding action is completed according to the steps, and the beneficial effects that continuous automatic production is achieved, and the production efficiency is greatly improved are achieved.

Description

Technical Field

[0001] This invention relates to the field of automotive door hinge conveying technology, specifically an automotive door hinge conveying and feeding machine. Background Technology

[0002] With the rapid development of artificial intelligence, automatic machine tools in automotive parts processing workshops need to replace manual material feeding while manufacturing door hinges, thus realizing fully automated production and processing. Previously, it was necessary to manually pick up parts and place them into molds for processing and shaping. Now, automatic feeding machines, together with robotic arms, pick up materials and place them into fixtures, realizing a fully automated production line. Since it does not require manual operation, it avoids the problems of workers being pinched by machines or products not being placed neatly, greatly reducing the risks of manual work.

[0003] Currently, automotive door hinges are fed using vibratory feeders. The working principle of a vibratory feeder is to use electromagnetic vibration to make parts perform throwing / sliding motions on a spiral or linear track. Utilizing its own geometric characteristics, parts with the correct orientation pass smoothly through a specific outlet, while parts with incorrect orientations are filtered out and recycled. This mode is essentially a probabilistic trial-and-error process. For simple, symmetrical, and lightweight standard parts such as screws and O-rings, this probabilistic method is acceptable. However, for automotive door hinges, their inherent physical characteristics significantly reduce the efficiency and reliability of the vibratory feeder. The "L"-shaped structure of the door hinge results in a wide variety of stable orientations during vibration, such as upright L, inverted L, horizontal, vertical, and sideways. The probability of thousands of hinges spontaneously and stably entering the outlet with the single correct "upright L" orientation under high-speed vibration is extremely low. Summary of the Invention

[0004] Technical problems to be solved:

[0005] To address the shortcomings of existing technologies, this invention provides an automotive door hinge conveying and feeding machine, which has advantages such as automatic sorting and uniform posture during automotive door hinge feeding, and solves the problem of processing multiple automotive door hinges and fixed spacing required by machine tools at the same time.

[0006] Technical solution:

[0007] To achieve the above objectives, the present invention provides the following technical solution: an automotive door hinge conveying and feeding machine, including a storage bin, the side wall of which is connected to a pusher plate feeding mechanism for pushing the automotive door hinge, the tail end of which is connected to a linear vibration track, the linear vibration track for conveying the carried automotive door hinge to the multi-station material distribution mechanism connected to the tail end;

[0008] The multi-station material distribution mechanism includes a conveyor belt, the first end of which is connected to the tail end of a linear vibration track. Multiple material blocking cylinders are arranged above the conveyor belt. The output end of each material blocking cylinder is connected to a baffle for contacting a car door hinge conveyed on the surface of the conveyor belt. Each of the multiple material blocking cylinders is equipped with a sensor.

[0009] Preferably, the storage bin is made of carbon steel welded together and fixed with screws, and the bottom of the storage bin is inclined at a 45-degree angle so that the door hinges stored in the storage bin slide down to the push plate feeding mechanism.

[0010] Preferably, the thickness of the storage bin is 3mm.

[0011] Preferably, the pusher plate feeding mechanism consists of a motor and a cam. The output end of the motor is connected to the cam, and the cam enables the two pusher plates to move up and down continuously at the same time. The motor is also connected to a speed regulator.

[0012] Preferably, the side of the push plate feeding mechanism is also connected to a return material chute, the top of the side wall of the return material chute is connected to the push plate feeding mechanism, and its bottom side is connected to the top side of the storage bin.

[0013] Preferably, the linear vibration track is further provided with a height limit and a width limit, both of which are fixedly connected by bolts, forming an "L"-shaped opening between them.

[0014] Preferably, the height limit and width limit restrict the car door hinge to enter in an "L" shaped posture. Car door hinges that do not conform to the posture are blocked by the height limit and width limit and fall into the return chute. Car door hinges that enter the height limit and width limit are conveyed forward by the linear vibration track to the multi-station material distribution mechanism.

[0015] Preferably, the multi-station material distribution mechanism has 8 material blocking cylinders, 8 sensors, and a conveyor belt length of 500mm.

[0016] Preferably, in the multi-station material distribution mechanism, the baffle thickness of the first baffle cylinder is 3mm, separating the first and second door hinges into a 3mm gap; the baffle thickness of the second baffle cylinder is 33mm, separating the second and third car door hinges into a 33mm gap; the baffle thickness of the third baffle cylinder is 3mm, separating the third and fourth car door hinges into a 3mm gap; the baffle thickness of the fourth baffle cylinder is 33mm, separating the fourth and fifth car door hinges into a 33mm gap; the baffle thickness of the fifth baffle cylinder is 3mm, separating the fifth and sixth car door hinges into a 3mm gap; the baffle thickness of the sixth cylinder is 3mm, used to prevent the seventh car door hinge from contacting the sixth car door hinge; the seventh baffle cylinder is used to block the subsequent continued conveying of car door hinges.

[0017] Preferably, each sensor corresponding to the blocking cylinder senses that the car door hinge has reached the designated position and activates the corresponding blocking cylinder. The eighth blocking cylinder is perpendicular to the conveyor belt and is a side blocking cylinder for both raising and lowering. When the robot arm comes to pick up the car door hinge, it rises and then falls back down after being picked up, while the conveyor belt starts to transport the door hinge over.

[0018] Compared with the prior art, the present invention provides an automotive door hinge conveyor and feeder, which has the following advantages:

[0019] 1. This invention utilizes gravity at a 45-degree inclination at the bottom of the storage bin to allow the car door hinges to automatically slide to the lowest point, avoiding the need for a robotic arm to grab scattered and stacked parts. The motor-driven cam of the pusher plate feeding mechanism drives the pusher plate to make continuous up-and-down movements. Each time, the pusher plate scrapes out only one car door hinge that has slid to the bottom and sends it onto the subsequent linear vibrating track. This transforms the disordered car door hinges into individual hinges that are "one after another, queuing up to move to the next station". When the car door hinge itself presents an "L" shape, it fits into the gap of the height and width limit of the "L" shaped linear vibrating track, achieving the beneficial effect of automatically sorting and unifying the posture of the car door hinges during feeding.

[0020] 2. The pusher plate feeding mechanism of the present invention does not require laborious digging out or lifting of the stacked car door hinges. It only needs to overcome the static friction and inertia of the bottom car door hinge and push it horizontally, which greatly reduces the workload of the pusher plate and the impact at the moment of start-up. The vibration of the linear vibration track causes the hinge and the track surface to vibrate, which overcomes the static friction between the car door hinges, making the car door hinges easier to transport and reducing wear. At the same time, the vibration of the linear vibration track can also shake off the dust and particles on the surface of the car door hinges, preventing these hard particles from repeatedly rubbing between the hinge and the track like sandpaper, thus achieving the beneficial effect of a longer service life of the less wear-prone feeding mechanism.

[0021] 3. This invention activates a pusher loading mechanism, in which multiple pushers circulate up and down sequentially. The bottom of the storage bin is at a 45-degree angle to the horizontal. The bottommost door hinge, under its own weight, slides steadily and continuously down the smooth slope of the bin bottom towards the lowest point. The endpoint of this sliding motion is precisely the working area of ​​the pusher loading mechanism. At this point, the pusher loading mechanism simply pushes the door hinges that have slid forward one by one onto a linear vibration track. The linear vibration track automatically arranges the door hinges into a uniform posture. Simultaneously, height and width limits restrict the door hinges to enter in an "L" shape. Door hinges that do not conform to the posture are blocked by the height and width limits and fall into the return chute. Door hinges that enter the height and width limits are transported forward by the linear vibration track to the multi-station distribution mechanism. The first blocking cylinder has a 3mm thick baffle, separating the first and second door hinges by a 3mm gap. The second blocking cylinder has a 33mm thick baffle, separating the second and third door hinges by a 33mm gap. The third stop cylinder has a 3mm thick baffle, separating the third and fourth car door hinges by a 3mm gap. The fourth stop cylinder has a 33mm thick baffle, separating the fourth and fifth car door hinges by a 33mm gap. The fifth stop cylinder has a 3mm thick baffle, separating the fifth and sixth car door hinges by a 3mm gap. The sixth cylinder has a 3mm thick baffle to prevent the seventh car door hinge from contacting the sixth car door hinge. The seventh stop cylinder is used to block subsequent car door hinges from being conveyed. Each of the above stop cylinder actions is triggered by a corresponding sensor sensing that the car door hinge has reached the designated position. The eighth stop cylinder has a side stop function for raising and lowering. When the robot arm picks up the door hinge, it rises, and after picking it up, it lowers, while the conveyor belt starts to transport the door hinge. Repeating the above steps represents completing one loading action, achieving continuous automatic production and greatly improving production efficiency. Attached Figure Description

[0022] Figure 1 This is a three-dimensional schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a top view of the overall structure of the present invention;

[0024] Figure 3 This is a rear view of the overall structure of the present invention;

[0025] Figure 4 This is a side view of the overall structure of the present invention;

[0026] Figure 5 For the present invention Figure 1 Enlarged diagram of A in the middle;

[0027] Figure 6For the present invention Figure 2 Enlarged diagram of B in the diagram.

[0028] The components include: 1. Storage bin; 2. Push plate feeding mechanism; 201. Return chute; 202. Motor; 3. Linear vibrating track; 301. Height limit stop; 302. Width limit stop; 4. Multi-station material distribution mechanism; 401. Conveyor belt; 402. Material blocking cylinder; 403. Baffle; 5. Sensor. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Please see Figure 1-6 The car door hinge conveying and feeding machine includes a storage bin 1. The side wall of the storage bin 1 is connected to a push plate feeding mechanism 2 for pushing the car door hinge. The tail end of the push plate feeding mechanism 2 is connected to a linear vibration track 3. The linear vibration track 3 is used to convey the car door hinge it carries to the multi-station material distribution mechanism 4 connected to the tail end.

[0031] The multi-station material distribution mechanism 4 includes a conveyor belt 401. The first end of the conveyor belt 401 is connected to the tail end of the linear vibration track 3. Multiple material blocking cylinders 402 are arranged above the conveyor belt 401. The output end of the material blocking cylinder 402 is connected to a baffle 403 for contacting the car door hinge conveyed on the surface of the conveyor belt 401. Each of the multiple material blocking cylinders 402 is equipped with a sensor 5.

[0032] Furthermore, the storage bin 1 is made of carbon steel welded together and fixed with screws. The bottom of the storage bin 1 is inclined at a 45-degree angle so that the door hinges stored in the storage bin 1 slide down to the push plate feeding mechanism 2.

[0033] It is worth noting that, since the car door hinges themselves have a certain weight, the storage bin 1 needs to bear the static load of multiple hinges and the dynamic load generated when the push plate mechanism is working. Carbon steel provides sufficient strength and rigidity to ensure that the storage bin 1 will not deform during long-term use. Furthermore, the car door hinges are stored in the storage bin 1, and the bottom of the bin is at a 45-degree angle to the horizontal plane. Under the action of its own gravity, the bottom door hinge will slide continuously and smoothly along the smooth bottom slope of the bin to the lowest point. The end point of the sliding is exactly the working area of ​​the push plate feeding mechanism 2. At this time, the push plate feeding mechanism 2 only needs to push the car door hinges that have slid to the front one by one onto the linear vibration track 3.

[0034] It is worth noting that the linear vibrating track 3 is a direct application of existing technology. The linear vibrating track 3 in this application is an existing and very mature device, commonly used by those skilled in the art for conveying and feeding materials, such as the prior art CN211331891U, whose specification discloses that "the material distribution mechanism is set at the end of the linear vibrating track and performs the material distribution action, and the material pushing mechanism pushes the parts on the material distribution mechanism to the corresponding position of the fixture. The parts of the terminal block or stationary contact are first vibrated and output by the vibrating plate and the linear vibrating track, then distributed by the material distribution mechanism, and finally pushed by the material pushing mechanism to the fixture of the turntable device. The action design is reasonable and the operation is smooth." As a device well known to those skilled in the art, this application does not make any improvements to the main structure of the linear vibrating track 3, therefore its operation and installation principles are not disclosed in detail.

[0035] Furthermore, the thickness of storage bin 1 is 3mm.

[0036] 3mm thick carbon steel plate is a very common standard specification plate on the market. It is easy to purchase and the processing technology is mature.

[0037] Furthermore, the push plate feeding mechanism 2 consists of a motor 202 and a cam. The output end of the motor 202 is connected to the cam, which enables the two push plates to move up and down continuously at the same time. The motor 202 is also connected to a speed regulator 204.

[0038] It is worth noting that the pusher plate feeding mechanism 2 is also an existing device on the market, and its specific principle has been disclosed on the Internet platform. For example, the video "Principle Design of SolidWorks Pusher Plate Feeding Mechanism" published on December 11, 2025, disclosed the principle of the pusher plate feeding mechanism 2. Therefore, as a device directly applied in this application, its principle will not be disclosed in the abstract. Furthermore, this application uses at least the pusher plate feeding mechanism 2 of model XYF-SL-04 for feeding. Similarly, the speed controller 204 is an existing device used to adjust the speed of the motor 202. It is a built-in device in the pusher plate feeding mechanism 2 of model XYF-SL-04, so it will not be described in detail again.

[0039] It is worth noting that the speed controller 204 adjusts the speed of the motor 202 according to the demand, and then the speed of the motor 202 is transmitted to the cam, so that the cam continuously transports the car door hinge upward into the linear vibration track.

[0040] Furthermore, the side of the push plate feeding mechanism is also connected to a return chute 201. The top of the side wall of the return chute 201 is connected to the push plate feeding mechanism 2, and its bottom side is connected to the top side of the storage bin 1.

[0041] Furthermore, the linear vibration track 3 is also equipped with a height limit barrier 301 and a width limit barrier 302. Both the height limit barrier 301 and the width limit barrier 302 are fixedly connected by bolts, forming an "L"-shaped cavity between them.

[0042] Furthermore, the height limit barrier 301 and width limit barrier 302 restrict the car door hinges to enter in an "L" shaped posture. Car door hinges that do not conform to the posture are blocked by the height limit barrier 301 and width limit barrier 302 and fall into the return material chute 201. Car door hinges that enter the height limit barrier 301 and width limit barrier 302 are conveyed forward by the linear vibration track 3 to the multi-station material distribution mechanism 4.

[0043] Furthermore, the multi-station material distribution mechanism 4 has 8 material blocking cylinders 402, 8 sensors 5, and the conveyor belt 401 is 500mm long.

[0044] Furthermore, in the multi-station material distribution mechanism 4, the baffle 403 of the first baffle cylinder 402 has a thickness of 3mm, separating the first and second door hinges into a 3mm gap; the baffle 403 of the second baffle cylinder 402 has a thickness of 33mm, separating the second and third car door hinges into a 33mm gap; the baffle 403 of the third baffle cylinder 402 has a thickness of 3mm, separating the third and fourth car door hinges into a 3mm gap; the baffle 403 of the fourth baffle cylinder 402 has a thickness of 33mm, separating the fourth and fifth car door hinges into a 33mm gap; the baffle 403 of the fifth baffle cylinder 402 has a thickness of 3mm, separating the fifth and sixth car door hinges into a 3mm gap; the baffle 403 of the sixth cylinder has a thickness of 3mm, used to prevent the seventh car door hinge from contacting the sixth car door hinge; the seventh baffle cylinder 402 is used to block the subsequent continued conveying of car door hinges.

[0045] Furthermore, the sensor 5 of each corresponding stop cylinder 402 senses that the car door hinge has reached the designated position and activates the corresponding stop cylinder 402. The eighth stop cylinder 402 is perpendicular to the conveyor belt 401. The eighth cylinder is a side stop for rising and falling. When the robot comes to pick up the car door hinge, it rises up and falls down after it is picked up. At the same time, the conveyor belt 401 is activated to transport the door hinge over.

[0046] It is worth noting that the sensor 5 in this application is a photoelectric sensor. The sensor 5 consists of a transmitter and a receiver. The transmitter emits infrared light or laser light, and the receiver receives the light beam. When the car door hinge passes by, it will block or reflect the light beam, causing a change in the receiver signal, thereby determining that an object has passed by. Then the sensor 5 activates the corresponding blocking cylinder 402. Furthermore, since this invention only involves structural improvements, the programming control of the sensor 5 and the corresponding blocking cylinder 402 is also part of the prior art that has been disclosed. This application also does not involve improvements in the control program.

[0047] In use, up to 350 car door hinges are placed into the storage bin 1, and then the pusher loading mechanism 2 is activated. Multiple pushers of the pusher loading mechanism 2 cycle up and down sequentially. The bottom of the storage bin 1 is at a 45-degree angle to the horizontal plane. The door hinges at the bottom, under their own weight, slide steadily and continuously down the smooth slope of the bin bottom towards the lowest point. The endpoint of this sliding motion is precisely the working area of ​​the pusher loading mechanism. At this point, the pusher loading mechanism 2 simply pushes the car door hinges that have slid to the front onto the linear vibration track 3 one by one. The linear vibration track then... The chains automatically align into a uniform posture. Simultaneously, height limiters 301 and width limiters 302 restrict the car door hinges to enter in an "L" shape. Car door hinges that do not conform to the posture are blocked by height limiters 301 and width limiters 302 and fall into the return chute 201. Car door hinges entering the height limiters 301 and width limiters 302 are conveyed forward by the linear vibration track 3 to the multi-station material distribution mechanism 4. The baffle 403 of the first baffle cylinder 402 is 3mm thick, separating the first and second door hinges into a 3mm gap. The baffle 403 of the second baffle cylinder 402... The thickness of the baffle 403 of the third stop cylinder 402 is 33mm, separating the second and third car door hinges into a 33mm gap. The thickness of the baffle 403 of the fourth stop cylinder 402 is 33mm, separating the fourth and fifth car door hinges into a 33mm gap. The thickness of the baffle 403 of the fifth stop cylinder 402 is 3mm, separating the fifth and sixth car door hinges into a 3mm gap. The thickness of the baffle 403 of the sixth cylinder is 3mm. m is used to prevent the seventh car door hinge from contacting the sixth car door hinge. The seventh blocking cylinder 402 is used to block the subsequent conveying of car door hinges. The action of each of the above blocking cylinders 402 is based on the corresponding sensor 5 sensing that the car door hinge has reached the designated position. The eighth blocking cylinder 402 has a side blocking function for raising and lowering. When the robot arm comes to pick up the door hinge, it rises up and then lowers down after taking it away. At the same time, the conveyor belt starts to transport the door hinge over. The above steps represent the completion of one loading action.

[0048] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A car door hinge conveying and feeding machine, comprising a storage bin (1), wherein the side wall of the storage bin (1) is connected to a pusher plate feeding mechanism (2) for pushing car door hinges, and the tail end of the pusher plate feeding mechanism (2) is connected to a linear vibration track (3), characterized in that: The linear vibration track (3) is used to transport the car door hinges to the multi-station material distribution mechanism (4) connected to the tail end; The multi-station material distribution mechanism (4) includes a conveyor belt (401), the first end of which is connected to the tail end of the linear vibration track (3), and multiple material blocking cylinders (402) are arranged above the conveyor belt (401). The output end of the material blocking cylinder (402) is connected to a baffle (403) for contacting the car door hinge conveyed on the surface of the conveyor belt (401). Each of the multiple material blocking cylinders (402) is equipped with a sensor (5).

2. The automotive door hinge conveyor and feeder according to claim 1, characterized in that: The storage bin (1) is made of carbon steel welded and fixed with screws. The bottom of the storage bin (1) is inclined at a 45-degree angle so that the door hinge stored in the storage bin (1) slides down to the push plate feeding mechanism (2).

3. The automotive door hinge conveyor and feeder according to claim 1, characterized in that: The thickness of the storage bin (1) is 3 mm.

4. The automotive door hinge conveyor and feeder according to claim 1, characterized in that: The push plate feeding mechanism (2) consists of a motor (202) and a cam. The output end of the motor (202) is connected to the cam, which enables the two push plates to move up and down continuously at the same time. The motor (202) is also connected to a speed regulator (204).

5. The automotive door hinge conveyor and feeder according to claim 1, characterized in that: The push plate feeding mechanism is also connected to a return chute (201) on its side. The top of the side wall of the return chute (201) is connected to the push plate feeding mechanism (2), and its bottom side is connected to the top side of the storage bin (1).

6. The automotive door hinge conveyor and feeder according to claim 1, characterized in that: The linear vibration track (3) is also equipped with a height limit (301) and a width limit (302), which are fixedly connected by bolts, forming an "L"-shaped cavity between them.

7. The automotive door hinge conveyor and feeder according to claim 1, characterized in that: The height limit (301) and width limit (302) restrict the car door hinge to enter in an "L" shaped posture. Car door hinges that do not conform to the posture are blocked by the height limit (301) and width limit (302) and fall into the return chute (201). Car door hinges that enter the height limit (301) and width limit (302) are transported forward by the linear vibration track (3) to the multi-station material distribution mechanism (4).

8. The automotive door hinge conveyor and feeder according to claim 1, characterized in that: The multi-station material distribution mechanism (4) has 8 material blocking cylinders (402), 8 sensors (5), and the conveyor belt (401) is 500mm long.

9. The automotive door hinge conveyor and feeder according to claim 1, characterized in that: The first baffle (403) of the multi-station material distribution mechanism (4) has a thickness of 3mm, separating the first and second door hinges by a 3mm gap; the baffle (403) of the second baffle (402) has a thickness of 33mm, separating the second and third car door hinges by a 33mm gap; the baffle (403) of the third baffle (402) has a thickness of 3mm, separating the third and fourth car door hinges by a 3mm gap; the fourth baffle... The baffle (403) of the cylinder (402) is 33mm thick, separating the fourth and fifth car door hinges into a 33mm gap. The baffle (403) of the fifth material-blocking cylinder (402) is 3mm thick, separating the fifth and sixth car door hinges into a 3mm gap. The baffle of the sixth cylinder is 3mm thick and is used to block the position where the seventh car door hinge does not contact the sixth car door hinge. The seventh material-blocking cylinder (402) is used to block the subsequent car door hinges from being transported.

10. The automotive door hinge conveyor and feeder according to claim 1, characterized in that: Each sensor (5) corresponding to the blocking cylinder (402) senses that the car door hinge has reached the designated position and activates the corresponding blocking cylinder (402). The eighth blocking cylinder (402) is perpendicular to the conveyor belt (401). The eighth cylinder is a side blocking cylinder for rising and falling. When the robot comes to pick up the car door hinge, it rises up and falls down after it is picked up. At the same time, the conveyor belt (401) is activated to transport the door hinge over.

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