Automatic hanging and conveying device for spraying parts

Abstract

The invention discloses an automatic hanging and conveying device for sprayed parts, which belongs to the technical field of hanging and conveying and comprises a tension mechanism and a hanging mechanism, the tension mechanism is fixed on a conveying chain through a mounting seat, the hanging mechanism is movably mounted on a slide rail arranged on a conveying frame, and the tension mechanism is connected with the hanging mechanism through a separable connecting piece. The tension of the conveying chain is transmitted to the suspension mechanism; the separable connecting piece comprises a connecting push rod of an arc-shaped structure, one end of the connecting push rod is connected with the connection-disconnection control mechanism, the connecting push rod is controlled by the connection-disconnection control mechanism to stretch out and draw back along an arc-shaped track, the other end of the connecting push rod makes contact with the hanging mechanism when the connecting push rod completely stretches out, and the contact position is located on the side opposite to the moving direction of the hanging mechanism. Through the suspension mechanism and the tension mechanism which are connected through the separable connecting piece, the conveying chain only needs to provide conveying tension and does not need to bear suspension gravity, the loss of the conveying chain is reduced, the running stability of the device is improved, and the service life of the device is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of suspension conveying, and particularly to an automatic suspension conveying device for spraying parts. Background Art

[0002] In the spraying process of spraying parts, suspension conveyors are widely used in the transfer link of the process flow. A suspension conveyor is a commonly used continuous conveying device. A suspension conveyor usually consists of a track system, a driving device, carriers (such as hanging baskets, trolleys, etc.), a control system, and auxiliary equipment (such as a tensioning device, a safety protection device), etc. The track system is responsible for defining the conveying path, providing support and guidance for the suspension conveying equipment. The driving device is used to provide power to drive the traction chain to run on the track. The carrier is used to directly carry the material. By connecting to the traction chain, it moves with the movement of the traction chain. Finally, the control system is responsible for the operation scheduling and monitoring of the entire system, such as speed regulation, start-stop control, etc.

[0003] However, the traditional carrier is directly fixed on the traction chain, making the traction chain not only need to receive the thrust from the driving device, but also receive the downward pulling force from the material when hanging the material. Especially when the material is heavy, it is easy to damage the traction chain, resulting in unstable conveying. Moreover, with the aging of the traction chain, local deformation causes the traction chain to vibrate when passing through the gear set, and the vibration is transmitted to the material, which also affects the stability of the material. Especially when transporting the spraying parts into the spraying operation area, the shaking spraying parts will cause uneven spraying, thus affecting the product quality. Therefore, the traditional suspension conveying device has a short service life and unstable operation, and cannot meet the production requirements. Summary of the Invention

[0004] The object of the present invention is to provide an automatic suspension conveying device for spraying parts to solve the problems that the traditional suspension conveying device is easy to damage the traction chain and has unstable operation, and has the advantages of reducing the pressure on the conveying chain, prolonging its service life, and being stable and reliable during conveying.

[0005] In a first aspect, to achieve the above object, the technical solution adopted by the present invention is as follows:

[0006] An automatic suspension conveying device for spraying parts, including a conveying frame, on which a conveying chain driven by an electric drive gear set is installed. A plurality of tension wheels are installed on the conveying chain. It further includes a tension mechanism and a suspension mechanism. The tension mechanism is fixed on the conveying chain through a mounting seat. The suspension mechanism is movably installed on a slide rail provided on the conveying frame. The tension mechanism is connected to the suspension mechanism through a separable connecting piece, and is used to transfer the tension of the conveying chain to the suspension mechanism;

[0007] The separable connector includes a connecting push rod with an arc-shaped structure. One end of the connecting push rod is connected to the connection-breaking control mechanism, and the connecting push rod is controlled by the connection-breaking control mechanism to expand and contract along an arc-shaped trajectory. The other end contacts the suspension mechanism when the connecting push rod is fully extended, and the contact position is on the side opposite to the moving direction of the suspension mechanism.

[0008] Preferably, the separable connector further includes a limiting rod with an arc-shaped structure. One end of the limiting rod is connected to another connection-breaking control mechanism, and the limiting rod is also controlled by the connection-breaking control mechanism to expand and contract along an arc-shaped trajectory. The other end contacts the suspension mechanism when the limiting rod is fully extended, and the contact position is on the side of the moving direction of the suspension mechanism.

[0009] Preferably, protective sleeves are provided at the ends of the connecting push rod and the limiting rod that contact the suspension mechanism.

[0010] Preferably, the connection-breaking control mechanism includes an arc-shaped groove, a spring, and an electromagnet. The magnetically controlled connected component is retracted into the arc-shaped groove by the electromagnet, and the connected component is pulled out of the arc-shaped groove by the spring.

[0011] Preferably, the suspension mechanism includes a connection seat with a connection hole provided thereon. The connecting push rod is inserted into the connection hole to contact the suspension mechanism, and the diameter of the connection hole is larger than the rod diameter of the connecting push rod. A shock pad is provided on the side wall of the connection hole.

[0012] Preferably, the suspension mechanism further includes a suspension rod. One end of the suspension rod is equipped with a roller, which is connected to the slide rail through the roller. The other end is equipped with a hook through a rotating seat. The hook is used for hanging the spraying part, and the hook can rotate around the suspension rod as the axis through the rotating seat.

[0013] Preferably, the tension mechanism further includes a rotation driving member. The rotation driving member includes a variable electromagnetic module that can change its magnetism. At least four magnet pieces are circumferentially distributed around the rotating seat, and the magnetism between adjacent magnet pieces is opposite. When the variable electromagnetic module changes its magnetism to be the same as the currently facing magnet piece, the repulsive force pushes the rotating seat to rotate once until the adjacent magnet piece faces the variable electromagnetic module.

[0014] Preferably, the position where the rotating seat mounts the magnet piece is offset from the central axis of this mounting position, and the variable electromagnetic module is opposite to the position of each rotated magnet piece. The variable electromagnetic module changes its magnetism by changing the direction of the current.

[0015] Preferably, the device further includes a feeding conveyor belt and a discharging conveyor belt. A spraying operation area is installed between the feeding conveyor belt and the discharging conveyor belt. The moving speed of the spraying part on the feeding conveyor belt and the discharging conveyor belt is less than the moving speed of the suspension mechanism. Both the feeding conveyor belt and the discharging conveyor belt include a rising section, a horizontal section, and a falling section arranged in sequence along the conveying direction.

[0016] Preferably, a sliding contact cable is installed on the conveying rack, a power taking rack is installed on the tension mechanism, and the power taking rack is electrically connected to the sliding contact cable.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. Through the suspension mechanism and the tension mechanism connected by separable connectors, the conveying chain only needs to provide the tension for conveying, without bearing the gravity of suspension, reducing the loss of the conveying chain, improving the running stability of the device and extending its service life.

[0019] 2. Moreover, as the separable suspension mechanism and tension mechanism, it is also convenient for the disassembly of the suspension mechanism. When the demand for conveying the spraying parts is small, the tension mechanism does not have to load the empty suspension mechanism. Selecting a suitable suspension mechanism for connection can ensure the stability of the spraying part conveying, and can also reduce the loss of conveying kinetic energy. In addition, the non-fixed connection between the suspension mechanism and the tension mechanism is easier to make a shock absorption structure. In the case of the vibration of the tension mechanism caused by the deformation of the conveying chain, the vibration will not be transmitted to the suspension mechanism, ensuring the stability of the suspended spraying parts.

[0020] 3. The present invention also sets a structure that can drive the hook of the suspension mechanism to rotate without contact, enabling the spraying part to rotate when it is conveyed to the spraying operation area, improving the spraying effect. The entire suspension mechanism only serves as passive suspension and rotation, without other power devices, which is more durable and saves production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the automatic suspension conveying device of the present invention.

[0022] Figure 2 It is a distribution schematic diagram of the tension mechanism and the suspension mechanism of the present invention.

[0023] Figure 3 It is a schematic diagram of the connection state between the connection seat and the separable connector of the present invention.

[0024] Figure 4 It is a schematic diagram of the disconnected state between the connection seat and the separable connector of the present invention.

[0025] Figure 5 It is a schematic diagram of the state before the rotation driving member controls the rotation of the rotating seat of the present invention.

[0026] Figure 6 It is a schematic diagram of the state after the rotation driving member controls the rotation of the rotating seat of the present invention.

[0027] In the figure: 1. Conveyor frame, 2. Tension mechanism, 3. Suspension mechanism, 4. Conveyor chain, 5. Tension pulley, 6. Sliding contact cable, 7. Power take-off frame, 8. Slide rail, 9. Mounting seat, 10. Detachable connector, 11. Rotary drive member, 12. Roller, 13. Suspension rod, 14. Connecting seat, 15. Rotating seat, 16. Hook, 17. Connecting push rod, 18. Limiting rod, 19. Connecting and disconnecting control mechanism, 20. Spring, 21. Arc groove, 22. Electromagnet, 23. Connecting hole, 24. Shock pad, 25. Protective sleeve, 26. Rotating shaft, 27. Magnet sheet, 28. Variable electromagnetic module, 29. Loading conveyor belt, 30. Spraying operation area, 31. Unloading conveyor belt, 32. Spraying part, 33. Ascending section, 34. Horizontal section, 35. Descending section. Detailed implementation manners

[0028] To make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0029] As Figure 1 and Figure 2 shown, an automatic hanging and conveying device for spraying parts is disclosed, which includes a conveyor frame 1. A conveyor chain 4 driven by an electric drive gear set is installed on the conveyor frame 1. A plurality of tension pulleys 5 are installed on the conveyor chain 4. The shape of the conveyor frame 1 can be designed according to the conveying path. The conveyor chain 4 is installed on the conveyor frame 1. The electric drive gear set is connected to the conveyor chain 4 in a meshing manner. As the electric drive gear set rotates, it drives the conveyor chain 4 to move cyclically along the path of the conveyor frame 1, realizing the cyclic conveying of the spraying parts 32 and completing the spraying operation during the cycle. The tension pulleys 5 are also composed of small gears. A plurality of tension pulleys 5 are provided and evenly distributed at various positions of the conveyor chain 4. The tension pulleys 5 can adjust the distance between them and the conveyor chain 4, so as to achieve the effect of tensioning the conveyor chain 4 and ensuring stable conveying.

[0030] For the spraying parts 32 to move along with the conveyor chain 4, they need to be fixed to the conveyor chain 4. And in order to facilitate the loading and unloading of the spraying parts 32, a hanging component is also required as an intermediate part to ensure connection with the conveyor chain 4 while being able to hang the spraying parts 32. As Figure 2 shown, the device further includes a tension mechanism 2 and a suspension mechanism 3. The tension mechanism 2 is fixed to the conveyor chain 4 through a mounting seat 9. The suspension mechanism 3 is movably installed on a slide rail 8 provided on the conveyor frame 1. The tension mechanism 2 is connected to the suspension mechanism 3 through a detachable connector 10, and is used to transmit the tension of the conveyor chain 4 to the suspension mechanism 3.

[0031] In the traditional suspension conveyor device, the tension mechanism 2 and the suspension mechanism 3 are integrally arranged. However, when spraying parts 32 are suspended in this design structure, the self-weight of the spraying parts 32 will be transmitted to the conveying chain 4. Even if the conveying chain 4 is maintained in a tensioned state through the tensioning wheel 5, the long-term downward pull will still cause the conveying chain 4 to be easily deformed, affecting its service life. In the present invention, the tension mechanism 2 and the suspension mechanism 3 are detachably connected, isolating the weight of the spraying parts 32 from being transmitted to the conveying chain 4. The suspension mechanism 3 is responsible for suspending the spraying parts 32, and the suspension mechanism 3 is installed on the slide rail 8, with the track bearing the weight. Moreover, the slide rail 8 adopts a rigid structure and is not easily deformed. The tension mechanism 2 is only used to be fixed on the conveying chain 4 to pull the suspension mechanism 3 to move synchronously. Since the tension mechanism 2 only provides the tension in the moving direction of the conveying chain 4, the reaction force it receives is also the force in the reverse moving direction of the conveying chain 4, so there will be no significant damage to the conveying chain 4.

[0032] To ensure the stable connection between the tension mechanism 2 and the suspension mechanism 3, a separable connector 10 is used as the connecting component between the two. As Figure 3 shown, the separable connector 10 includes a connecting push rod 17 with an arc-shaped structure. One end of the connecting push rod 17 is connected to the connection break control mechanism 19, and the connecting push rod 17 is controlled by the connection break control mechanism 19 to expand and contract along an arc-shaped trajectory. The other end contacts the suspension mechanism 3 when the connecting push rod 17 is fully extended, and the contact position is on the side opposite to the moving direction of the suspension mechanism 3. The separable connector 10 uses the connecting push rod 17 with an arc-shaped structure as the connecting rod. Compared with a straight rod, the stress received at both ends can be evenly distributed to the entire rod body by the arc-shaped structure, and it is not easily broken or deformed. Expanding and contracting along the arc-shaped trajectory is also to ensure that the connecting push rod 17 with an arc-shaped structure does not occupy too much space when expanding and contracting. Moreover, the connection position is on the side opposite to the moving direction of the suspension mechanism 3. In this way, when reconnecting in the disconnected state, there is no need to accurately position the moment of contacting the suspension mechanism 3. Taking the moving direction of the suspension mechanism 3 as the forward direction as an example, the connecting push rod 17 only needs to ensure that when it is behind the suspension mechanism 3, it can be fully extended. Even if it extends in advance, it can still touch the suspension mechanism 3 and push the suspension mechanism 3 forward. Here, the connection break control mechanism 19 is selected to control the expansion and contraction of the connecting push rod 17 in order to create a disconnected state between the tension mechanism 2 and the suspension mechanism 3, so as to maximize the advantages of the split design of the two. For example, when one of them fails, the other can be quickly separated, which is not only convenient for maintenance but also does not affect the work. Moreover, when the workload is small, it is also possible to choose to reduce the use of the suspension mechanism 3 to avoid the tension mechanism 2 pulling the empty suspension mechanism 3 to move in a cycle, resulting in unnecessary energy consumption.

[0033] As described above, the connecting push rod 17 is connected behind the suspension mechanism 3 to push the suspension mechanism 3 to move. Although the suspension mechanism 3 will be pushed forward a certain distance when touched due to inertia, it does not affect the subsequent continuous pushing. However, in order to ensure the connection stability of the suspension mechanism 3, a limiting rod 18 needs to be added. As Figure 3 shown, the separable connector 10 further includes a limiting rod 18 also in an arc structure. One end of the limiting rod 18 is connected to another connection-disconnection control mechanism 19, and the limiting rod 18 is also controlled by the connection-disconnection control mechanism 19 to expand and contract along the arc trajectory. The other end contacts the suspension mechanism 3 when the limiting rod 18 is fully extended, and the contact position is on one side of the moving direction of the suspension mechanism 3. The limiting rod 18 is arranged in front of the suspension mechanism 3, so that it can form a structure similar to a clamping arm with the connecting push rod 17. By clamping in the front and rear directions, the suspension mechanism 3 is fixed and then moves synchronously with the pulling mechanism 2, increasing the connection stability of the separable connector 10. Similarly, the arc structure of the limiting rod 18 is also to disperse the stress received, avoid breaking or deforming due to excessive touching force, and also be controlled by a connection-disconnection control mechanism 19, so that the limiting rod 18 can be separated from the suspension mechanism 3 to achieve a complete disconnection between the pulling mechanism 2 and the suspension mechanism 3.

[0034] And in order to protect the connecting push rod 17 and the limiting rod 18, protective sleeves 25 are provided at the ends of the connecting push rod 17 and the limiting rod 18 that contact the suspension mechanism 3. The protective sleeves 25 can be made of rubber material, which can play a protective role and reduce the noise during connection.

[0035] According to the uses of the connecting push rod 17 and the limiting rod 18, both need to have a fast response speed, and both with an arc structure move along the arc trajectory. In order to meet the requirements of moving along the arc trajectory and having a fast response speed, as Figure 3 shown, the connection-disconnection control mechanism 19 includes an arc groove 21, a spring 20 and an electromagnet 22. The components connected are controlled to retract into the arc groove 21 by the magnetic attraction provided by the electromagnet 22, and the components connected are pulled out of the arc groove 21 by the spring 20. The electromagnet 22 is used as the power component of the connection-disconnection control mechanism 19, and the arc trajectory movement of the connecting push rod 17 or the limiting rod 18 is controlled by the magnetic attraction method, which can be not affected by the moving path, ensure the force is transmitted to the connecting push rod 17 or the limiting rod 18, and can also reduce the arrangement of transmission components, reduce costs and failure rates. Here, the electromagnet 22 provides the force for the connecting push rod 17 or the limiting rod 18 to retract, and the spring 20 provides the force for the connecting push rod 17 or the limiting rod 18 to extend, which can achieve the effect of rapid contraction. As Figure 3 shown, it is a state diagram when the push rod 17 and the limiting rod 18 both extend. At this time, the electromagnet 22 has no current passing through and does not generate magnetism. The connecting push rod 17 and the limiting rod 18 are pulled out of the arc groove 21 by the spring 20, and when retraction is required, it forms as Figure 4For the state diagram shown, the electromagnet 22 needs to be energized. The magnetic attraction force will attract the connecting push rod 17 and the limiting rod 18 to move along the arc-shaped groove 21 and contact the electromagnet 22. The spring 20 is also stretched to store energy for the ejection of the connecting push rod 17 and the limiting rod 18 next time. By using the magnetic attraction and ejection methods, the quick response of the connection-breaking control mechanism 19 is realized. The structure is simple, the cost is low, and it is not easy to malfunction.

[0036] As Figure 3 and Figure 4 shown, the suspension mechanism 3 includes a connecting seat 14. A connecting hole 23 is provided on the connecting seat 14. The connecting push rod 17 is inserted into the connecting hole 23 to contact the suspension mechanism 3. The aperture of the connecting hole 23 is larger than the rod diameter of the connecting push rod 17. A shock pad 24 is provided on the side wall of the connecting hole 23. According to the above, the connecting push rod 17 can contact the suspension mechanism 3 without high precision. However, in order to avoid accidents during the pushing process, a connecting hole 23 still needs to be provided on the connecting seat 14. Since the connecting push rod 17 extends out for contact, the aperture of the connecting hole 23 needs to be set larger, so as to reduce the connection error. And the connecting push rod 17 transmits the thrust to the connecting seat 14 through the end. Therefore, a shock pad 24 is provided on the side wall of the connecting hole 23, which can reduce the collision of the connecting push rod 17 against the connecting hole 23 due to lateral jitter. The conveying chain 4 is relatively long. When local deformation or aging occurs, vibrations will be generated when it moves to the tensioning wheel 5 or the electric drive gear set. The vibrations are transmitted to the suspension mechanism 3 through the tension mechanism 2, affecting the suspension stability. The use of the shock pad 24 can reduce part of the vibrations and improve the operating stability effect of the suspension mechanism 3.

[0037] As Figure 2 shown, the suspension mechanism 3 further includes a suspension rod 13. One end of the suspension rod 13 is installed with a roller 12, which is connected to the slide rail 8 through the roller 12. The other end is installed with a hook 16 through a rotating seat 15. The hook 16 is used to hang the spraying part 32. The hook 16 can rotate around the suspension rod 13 as the axis through the rotating seat 15. By connecting with the slide rail 8 through the roller 12, it has a strong supporting force to support the weight of the suspended part. And by using the rotating seat 15, the hook 16 can rotate. During the spraying operation, the rotatable spraying part 32 can be sprayed more evenly.

[0038] Since the suspension mechanism 3 is used to suspend heavy objects, in order to improve the durability, the structure of the suspension mechanism 3 needs to be simple and not easy to malfunction. Therefore, the provision of the rotational driving force of the rotating seat 15 cannot be directly installed on the suspension mechanism 3. And the suspension mechanism 3 is relatively stationary with the tension mechanism 2 during operation. Therefore, it is best to install the structure for driving the rotating seat 15 on the tension mechanism 2. As Figure 5As shown, the pulling mechanism 2 further includes a rotary drive member 11. The rotary drive member 11 includes a variable electromagnetic module 28 which can change its magnetism. At least four magnet pieces 27 are circumferentially distributed around the rotating seat 15, and the magnetism between adjacent magnet pieces 27 is opposite. When the magnetism of the variable electromagnetic module 28 changes to be the same as the currently facing magnet piece 27, the repulsive force pushes the rotating seat 15 to rotate once until the adjacent magnet piece 27 faces the variable electromagnetic module 28. The pulling mechanism 2 also controls the rotation of the rotating seat 15 based on the magnetic principle. The position where the rotating seat 15 mounts the magnet pieces 27 is offset from the central axis of this mounting position. The variable electromagnetic module 28 is opposite to the position of each rotated magnet piece 27, and the variable electromagnetic module 28 changes its magnetism by changing the direction of the current.

[0039] Using the magnetism of the variable electromagnetic module 28 as the driving force, since magnet pieces 27 are arranged around the rotating seat 15, it only needs to ensure that the magnetism of the variable electromagnetic module 28 is the same as that of the opposite magnet piece 27. The repulsive force will push away the magnet piece 27. As long as the center of the magnet piece 27 is not on the axis of the rotating seat 15, the thrust will cause the rotating seat 15 to shift, making the magnet piece 27 on the other side face the variable electromagnetic module 28. Since the magnetism of adjacent magnet pieces 27 is opposite, the magnetism of the current variable electromagnetic module 28 is also opposite to that of the current magnet piece 27, and there is a magnetic attraction force between them, ensuring that the rotated rotating seat 15 will not shake or rotate excessively. By only changing the magnetism of the variable electromagnetic module 28, the rotating seat 15 will rotate once again until the rotating seat 15 rotates one full circle. Moreover, by controlling the time interval of the magnetic change of the variable electromagnet module 28, the time interval for each rotation of the rotating seat 15 can be controlled. In this way, when cooperating with the spraying device, it can ensure that the sprayed part 32 is fully sprayed.

[0040] As Figure 1As shown in the figure, the device further includes a loading conveyor belt 29 and an unloading conveyor belt 31. A spraying operation area 30 is installed between the loading conveyor belt 29 and the unloading conveyor belt 31. The moving speed of the sprayed part 32 on the loading conveyor belt 29 and the unloading conveyor belt 31 is less than the moving speed of the suspension mechanism 3. Both the loading conveyor belt 29 and the unloading conveyor belt 31 include a rising section 33, a horizontal section 34, and a descending section 35 arranged in sequence along the conveying direction. The loading conveyor belt 29 is used to convey the sprayed part 32 so that the hook 16 of the suspension mechanism 3 can be suspended on the sprayed part 32. Since the conveying rate of the sprayed part 32 by the loading conveyor belt 29 is less than the moving speed of the suspension mechanism 3, when the sprayed part 32 moves from the rising section 33 to the horizontal section 34, the rear suspension mechanism 3 overtakes the sprayed part 32 and hooks the sprayed part 32 through the hook 16 until it leaves the horizontal section 34 and enters the descending section 35. The sprayed part 32 enters the spraying operation area 30 suspended. In the spraying operation area 30, the sprayed part 32 rotates for omnidirectional spraying. Finally, the direction of the hook 16 is opposite to the direction when the sprayed part 32 is suspended. The hook 16 drives the sprayed part 32 to move from the rising section 33 of the unloading conveyor belt 31 to the horizontal section 34. The conveyor belt of the horizontal section 34 supports the sprayed part 32 and the moving speed of the suspension mechanism 3, and the hook 16 is opposite to that before the sprayed part 32 is suspended. Naturally, the hook 16 is separated from the sprayed part 32. Finally, the sprayed part 32 leaves the unloading conveyor belt 31 along the descending section 35. By using this method, automatic loading and unloading of the device can be realized, saving manpower.

[0041] As Figure 2 shown in the figure, a sliding contact cable 6 is installed on the conveying frame 1, and a power-taking frame 7 is installed on the tension mechanism 2. The power-taking frame 7 is electrically connected to the sliding contact cable 6. Since the tension mechanism 2 moves with the conveying chain 4, traditional cable power supply cannot meet the use requirements. The use of sliding contact power supply reduces the wiring difficulty and is also convenient for power supply to the separable connector 10 and the connection-disconnection control mechanism 19.

[0042] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0043] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only includes an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An automatic suspension conveying device for spraying parts, comprising a conveying frame (1), a conveying chain (4) driven by an electric drive gear set is installed on the conveying frame (1), and a plurality of tension wheels (5) are installed on the conveying chain (4), characterized in that: It also comprises a tension mechanism (2) and a suspension mechanism (3), wherein the tension mechanism (2) is fixed on the conveying chain (4) via a mounting seat (9), and the suspension mechanism (3) is movably mounted on a slide rail (8) provided on the conveying frame (1), and the tension mechanism (2) is connected to the suspension mechanism (3) via a detachable connecting piece (10) for transmitting the tension of the conveying chain (4) to the suspension mechanism (3); The detachable connecting member (10) comprises a connecting push rod (17) having an arc-shaped structure, one end of which is connected to a connection and disconnection control mechanism (19), and the connection push rod (17) is controlled by the connection and disconnection control mechanism (19) to extend and retract along an arc-shaped trajectory, and the other end of which contacts the suspension mechanism (3) when the connecting push rod (17) is fully extended, and the contact position is on the side opposite to the moving direction of the suspension mechanism (3).

2. The automatic suspension and conveying device for sprayed parts according to claim 1 is characterized in that: The detachable connecting member (10) also includes a limit rod (18) having an arc-shaped structure. One end of the limit rod (18) is connected to another connection and disconnection control mechanism (19). The limit rod (18) is also controlled by the connection and disconnection control mechanism (19) to extend and retract along an arc-shaped trajectory. The other end contacts the suspension mechanism (3) when the limit rod (18) is fully extended, and the contact position is on one side of the moving direction of the suspension mechanism (3).

3. The automatic suspension and conveying device for sprayed parts according to claim 2 is characterized in that: The ends of the connecting push rod (17) and the limiting rod (18) that are in contact with the suspension mechanism (3) are both provided with protective sleeves (25).

4. The automatic suspension and conveying device for sprayed parts according to claim 1 or 2, characterized in that: The connection and disconnection control mechanism (19) comprises an arc-shaped groove (21), a spring (20) and an electromagnet (22). The connected component is retracted into the arc-shaped groove (21) by magnetic attraction control provided by the electromagnet (22), and the connected component is pulled out of the arc-shaped groove (21) by the spring (20).

5. The automatic suspension and conveying device for sprayed parts according to claim 1, characterized in that: The suspension mechanism (3) comprises a connection seat (14), a connection hole (23) is arranged on the connection seat (14), a connection push rod (17) is inserted into the connection hole (23) and contacts the suspension mechanism (3), the hole diameter of the connection hole (23) is larger than the rod diameter of the connection push rod (17), and a shock-absorbing pad (24) is arranged on the side wall of the connection hole (23).

6. The automatic suspension and conveying device for sprayed parts according to claim 1, characterized in that: The suspension mechanism (3) also includes a suspension rod (13), one end of which is mounted with a roller (12) and connected to a slide rail (8) via the roller (12), and the other end of which is mounted with a hook (16) via a rotating seat (15), the hook (16) being used to suspend the spraying part (32), and the hook (16) being able to rotate around the suspension rod (13) as an axis via the rotating seat (15).

7. The automatic suspension and conveying device for sprayed parts according to claim 6, characterized in that: The pulling mechanism (2) also includes a rotating drive member (11), the rotating drive member (11) includes a variable electromagnetic module (28), the variable electromagnetic module (28) can change its magnetism, at least four magnet pieces (27) are distributed circumferentially around the rotating seat (15), the magnetism between adjacent magnet pieces (27) is opposite, when the variable electromagnetic module (28) changes its magnetism to be the same as the magnet piece (27) currently facing, the repulsive force pushes the rotating seat (15) to rotate once until the adjacent magnet piece (27) faces the variable electromagnetic module (28).

8. The automatic suspension and conveying device for sprayed parts according to claim 7, characterized in that: The position of the magnet piece (27) installed on the rotating seat (15) is offset from the central axis of the installation position, and the variable electromagnetic module (28) is opposite to each rotated magnet piece (27). The variable electromagnetic module (28) changes the magnetism by changing the direction of the current.

9. The automatic suspension and conveying device for sprayed parts according to claim 6, characterized in that: The device further comprises a loading conveyor belt (29) and a unloading conveyor belt (31), a spraying operation area (30) is installed between the loading conveyor belt (29) and the unloading conveyor belt (31), the moving speed of the spraying part (32) on the loading conveyor belt (29) and the unloading conveyor belt (31) is lower than the moving speed of the suspension mechanism (3), and the loading conveyor belt (29) and the unloading conveyor belt (31) both comprise an ascending section (33), a horizontal section (34) and a descending section (35) which are sequentially arranged along the conveying direction.

10. The automatic suspension and conveying device for sprayed parts according to claim 1, characterized in that: A sliding contact cable (6) is installed on the conveying frame (1), and a power supply frame (7) is installed on the pulling mechanism (2), and the power supply frame (7) is electrically connected to the sliding contact cable (6).

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