An extendable belt conveyor

Abstract

The utility model provides a telescopic belt conveying device, including first section telescopic mechanism, second section telescopic mechanism, third section telescopic mechanism, fourth section telescopic mechanism, motor, pivot and belt, second section telescopic mechanism outside surface with first section telescopic mechanism inside surface slidably connected, third section telescopic mechanism outside surface with second section telescopic mechanism inside surface slidably connected, fourth section telescopic mechanism outside surface with third section telescopic mechanism inside surface slidably connected, motor and pivot all with first section telescopic mechanism are connected. The utility model has solved how to solve the workpiece in the conveying process in the prior art due to the problem of the great automation production line, manual work is difficult to workpiece, manipulator workpiece sending distance is limited, and the fixed conveying device is too long or too short to influence workpiece sending efficiency and has very big local problem.

Description

Technical Field

[0001] This utility model relates to the technical field of conveying equipment, and in particular to a telescopic belt conveyor device. Background Technology

[0002] In automotive automated welding production lines, multiple devices and robotic arms work together to weld automotive parts. Small automated production lines typically allow manual loading for simple welding tasks, while large automated production lines are usually complex, making manual handling difficult. Traditional automated conveyor systems are space-consuming and costly, and even after transporting parts to the designated location, robotic arms are still needed for gripping. The coordination between these various cumbersome devices makes it difficult to improve production efficiency.

[0003] Currently, the conveying distance of belt conveyor equipment on the market is fixed during manufacturing. If the belt conveyor is too long or too short during use, it will affect the transportation efficiency of goods. Moreover, the fixed conveying distance can only be used within the specified range, which has great limitations. It is time-consuming, labor-intensive and prone to slipping when conveying large workpieces (such as car floor, car door or car hood). There are still many workplace injuries.

[0004] Therefore, how to solve the problem that during the conveying process, the automated production line is too large, making it difficult for manual loading, the robotic arm has a limited delivery distance, and the fixed conveying device is too long or too short, which affects the delivery efficiency and has great limitations. Utility Model Content

[0005] The purpose of this utility model is to provide a telescopic belt conveyor device, which mainly solves the problems of the above-mentioned prior art in how to solve the problems of workpieces being difficult to load manually due to the large size of the automated production line, the limited delivery distance of the robot arm, and the fact that the fixed conveyor device is too long or too short, which affects the delivery efficiency and has great limitations.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is: a telescopic belt conveyor, characterized in that: the telescopic belt conveyor includes a first telescopic mechanism, a second telescopic mechanism, a third telescopic mechanism, a fourth telescopic mechanism, a motor, a rotating shaft, and a belt; the outer side of the second telescopic mechanism is slidably connected to the inner side of the first telescopic mechanism; the outer side of the third telescopic mechanism is slidably connected to the inner side of the second telescopic mechanism; the outer side of the fourth telescopic mechanism is slidably connected to the inner side of the third telescopic mechanism; and both the motor and the rotating shaft are connected to the first telescopic mechanism.

[0007] The front and rear ends of the first telescopic mechanism, the front and rear ends of the second telescopic mechanism, and the front and rear ends of the third telescopic mechanism are all equipped with pulleys. One end of the belt is connected to the fourth telescopic mechanism, and the other end of the belt is wound around the pulley, the shaft, and the movable end of the motor before being connected to the fourth telescopic mechanism. The motor drives the shaft to rotate. Several suction cups for fixing the workpiece are set at the front end of the fourth telescopic mechanism.

[0008] Furthermore, the first telescopic mechanism includes a first telescopic frame, with the upper rear end of the first telescopic frame connected to a first pulley and a second pulley, the lower rear end of the first telescopic frame connected to a third pulley and a fourth pulley, and the lower front end of the first telescopic frame connected to a fifth pulley and a sixth pulley.

[0009] The second telescopic mechanism includes a second telescopic frame, the rear end of which is connected to the seventh pulley and the eighth pulley respectively, and the lower front end of the second telescopic frame is connected to the ninth pulley and the tenth pulley respectively;

[0010] The third telescopic mechanism includes a third telescopic frame, the rear end of which is connected to the eleventh and twelfth pulleys respectively, and the lower front end of the third telescopic frame is connected to the thirteenth and fourteenth pulleys respectively.

[0011] The fourth telescopic mechanism includes a fourth telescopic frame, with a first clamping plate and a second clamping plate on the right rear end of the fourth telescopic frame, and a third clamping plate and a fourth clamping plate on the left rear end of the fourth telescopic frame.

[0012] The belt includes a first belt, a second belt, and a third belt. One end of the first belt is connected to a first clamping plate, and the other end of the first belt is sequentially wound around a first pulley, a rotating shaft, a third pulley, a fifth pulley, a seventh pulley, a ninth pulley, an eleventh pulley, and a thirteenth pulley before connecting to a second clamping plate. One end of the second belt is connected to a third clamping plate, and the other end of the second belt is sequentially wound around a second pulley, a rotating shaft, a fourth pulley, a sixth pulley, an eighth pulley, a tenth pulley, a twelfth pulley, and a fourteenth pulley before connecting to a fourth clamping plate. The rotating shaft and the moving end of the motor are connected by the third belt.

[0013] Furthermore, the third pulley is connected to the first telescopic frame via the first fixed bracket, and the fourth pulley is connected to the first telescopic frame via the second fixed bracket;

[0014] The fifth pulley is connected to the first telescopic frame via the third fixed bracket, and the sixth pulley is connected to the first telescopic frame via the fourth fixed bracket;

[0015] The seventh pulley is connected to the second telescopic frame via the fifth fixed bracket, and the eighth pulley is connected to the second telescopic frame via the sixth fixed bracket.

[0016] The ninth pulley is connected to the second telescopic frame via the seventh fixed bracket, and the tenth pulley is connected to the second telescopic frame via the eighth fixed bracket.

[0017] The eleventh pulley is connected to the third telescopic frame via the ninth fixed bracket, and the twelfth pulley is connected to the third telescopic frame via the tenth fixed bracket;

[0018] The thirteenth pulley is connected to the third telescopic frame via the eleventh fixed bracket, and the fourteenth pulley is connected to the third telescopic frame via the twelfth fixed bracket.

[0019] Furthermore, the rear end of the fourth telescopic frame is provided with a fifth limiting plate and a sixth limiting plate for limiting the movement of the front or rear end of the third telescopic frame;

[0020] The rear end of the third telescopic frame is provided with a first limiting plate and a second limiting plate for limiting the movement of the front or rear end of the second telescopic frame.

[0021] The rear end of the second telescopic frame is provided with a third and a fourth limiting plate for limiting the movement of the front or rear end of the first telescopic frame.

[0022] Furthermore, the front end of the fourth telescopic frame is also equipped with a first sensor, a second sensor, and a third sensor. The first sensor is connected to the right side of the fourth telescopic frame, the second sensor is connected to the left side of the fourth telescopic frame, and the third sensor is connected to the lower side of the fourth telescopic frame.

[0023] Furthermore, the seventh and eighth pulleys are respectively located at the middle of the rear end of the second telescopic frame. The seventh and fifth pulleys are located in the same vertical plane, with the seventh pulley located at the upper rear and the fifth pulley located at the lower front. The first belt is wound around the fifth and seventh pulleys to form a Z-shaped bend.

[0024] The eighth pulley and the sixth pulley are located in the same vertical plane, with the eighth pulley located at the upper rear and the sixth pulley located at the lower front. The second belt wraps around the sixth and eighth pulleys to form a Z-shaped bend.

[0025] Furthermore, the eleventh and twelfth pulleys are respectively located at the middle of the rear end of the third telescopic frame. The eleventh and ninth pulleys are located in the same vertical plane, with the eleventh pulley located at the upper rear and the ninth pulley located at the lower front. The first belt is wound around the ninth and eleventh pulleys to form a Z-shaped bend.

[0026] The twelfth pulley and the tenth pulley are located in the same vertical plane, with the twelfth pulley located at the upper rear and the tenth pulley located at the lower front. The second belt wraps around the tenth and twelfth pulleys to form a Z-shaped bend.

[0027] Furthermore, a second limiting groove is provided on the outer side of the second telescopic mechanism, and a first limiting block is provided on the inner side of the first telescopic mechanism. The first limiting block matches the second limiting groove.

[0028] The third limiting groove is provided on the outer side of the third telescopic mechanism, and the second limiting block is provided on the inner side of the second telescopic mechanism. The second limiting block matches the third limiting groove.

[0029] The fourth limiting groove is provided on the outer side of the fourth telescopic mechanism, and the third limiting block is provided on the inner side of the third telescopic mechanism. The third limiting block matches the fourth limiting groove.

[0030] Furthermore, the bottom of the fourth telescopic frame is provided with a thirteenth fixed bracket and a fourteenth fixed bracket; the first telescopic frame is connected to the fourth sensor through a sensor bracket;

[0031] The motor is connected to the first telescopic frame via a connecting plate;

[0032] The four corners of the fourth telescopic frame are respectively equipped with a first suction cup, a second suction cup, a third suction cup, and a fourth suction cup.

[0033] Furthermore, the rotating shaft drives one end of the belt to pull the fourth telescopic mechanism back toward the first telescopic mechanism, while the rear pulley of the third telescopic mechanism and the front pulley of the second telescopic mechanism stretch the belt, and the rear pulley of the second telescopic mechanism and the front pulley of the first telescopic mechanism stretch the belt.

[0034] Alternatively, the shaft can use a belt to bring the rear pulley of the third telescopic mechanism closer to the front pulley of the second telescopic mechanism, and the rear pulley of the second telescopic mechanism closer to the front pulley of the first telescopic mechanism. At the same time, one end of the belt moves away from the first telescopic mechanism and stretches the belt.

[0035] In view of the above technical features, the present invention has the following beneficial effects:

[0036] 1. This utility model discloses a telescopic belt conveyor device, which drives a rotating shaft through a motor, and the belts on both sides drive multiple sets of pulleys to achieve multi-group linkage, realizing the close cooperation of four sets of telescopic mechanisms. This effectively improves the application of the telescopic belt conveyor device in diversified automated production lines, reduces usage limitations, and thus improves workpiece conveying efficiency and production line utilization.

[0037] 2. This utility model discloses a telescopic belt conveyor device, which consists of four telescopic frames forming a four-section telescopic mechanism. Each of the four telescopic frames is equipped with a pulley. A motor drives a rotating shaft, which in turn drives a belt that drives multiple sets of pulleys for transmission. The two belts and multiple sets of pulleys work together perfectly to control the length of the four telescopic frames to achieve the desired feeding and retraction. The length of the four telescopic frames is adjustable, making it suitable for automated production lines with different loading distance requirements. It is more flexible and has fewer limitations. Automatic feeding eliminates the need for manual loading, improving production safety. Attached Figure Description

[0038] Figure 1 This is a structural schematic diagram of a telescopic belt conveyor device in specific embodiment 1.

[0039] Figure 2 This is a structural schematic diagram of the first and second telescopic mechanisms in specific embodiment 1.

[0040] Figure 3 This is a schematic diagram of the third and fourth telescopic mechanisms in specific embodiment 1.

[0041] Figure 4 This is a schematic diagram of the structure of two belts and multiple pulleys in specific embodiment 1. Figure 1 (3D view angle, extended state).

[0042] Figure 5 This is a schematic diagram of the structure of two belts and multiple pulleys in specific embodiment 1. Figure 2 (Front view angle, extended state).

[0043] Figure 6 This is a partial enlarged view of the connection between the third and fourth telescopic mechanisms in Specific Embodiment 1.

[0044] Figure 7 This is a partial enlargement of a telescopic belt conveyor device in specific embodiment 1. Figure 1 .

[0045] Figure 8 This is a partial enlargement of a telescopic belt conveyor device in specific embodiment 1. Figure 2 .

[0046] Figure 9 This is a partial enlargement of a telescopic belt conveyor device in specific embodiment 1. Figure 3 .

[0047] Figure 10 This is a partial enlargement of a telescopic belt conveyor device in specific embodiment 1. Figure 4 .

[0048] Figure 11This is a partial enlargement of a telescopic belt conveyor device in specific embodiment 1. Figure 5 .

[0049] Figure 12 This is a partial enlargement of a telescopic belt conveyor device in specific embodiment 1. Figure 6 .

[0050] In the diagram: 1. Motor; 2. Shaft; 3. Connecting plate; 4. First telescopic frame; 5. First pulley; 6. Second pulley; 7. First fixed bracket; 8. Third pulley; 9. Second fixed bracket; 10. Fourth pulley; 11. Sensor bracket; 12. Fourth sensor; 13. Third fixed bracket; 14. Fifth pulley; 15. Fourth fixed bracket; 16. Sixth pulley; 17. Fifth fixed bracket; 18. Seventh pulley; 19. Sixth fixed bracket; 20. Eighth pulley; 21. Second telescopic frame; 22. Ninth pulley; 23. Seventh fixed bracket; 24. Eighth fixed bracket; 25. Tenth pulley; 26. Ninth fixed bracket; 27. Eleventh pulley; 28. Tenth fixed bracket; 29. ​​Twelfth pulley; 30. 31. First limiting plate; 32. Second limiting plate; 33. First clamping plate; 34. Second clamping plate; 35. Third clamping plate; 36. Fourth clamping plate; 37. Third telescopic frame; 38. Thirteenth pulley; 39. Eleventh fixed bracket; 40. Fourteenth pulley; 41. Twelfth fixed bracket; 42. Third limiting plate; 43. Fourth limiting plate; 44. First suction cup; 45. First sensor; 46. Second suction cup; 47. Third suction cup; 48. Second sensor; 49. Fourth suction cup; 50. Third sensor; 51. Fifth limiting plate; 52. Sixth limiting plate; 53. Thirteenth fixed bracket; 54. Fourteenth fixed bracket; 55. Belt; 55-1. First belt; 55-2. Second belt; 55-3. Third belt. Detailed Implementation

[0051] The present invention will be further described below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims.

[0052] See Figures 1 to 12In specific embodiment 1, a telescopic belt conveyor is provided. The telescopic belt conveyor includes a first telescopic mechanism, a second telescopic mechanism, a third telescopic mechanism, a fourth telescopic mechanism, a motor 1, a rotating shaft 2, and a belt 55. The outer side of the second telescopic mechanism is slidably connected to the inner side of the first telescopic mechanism, the outer side of the third telescopic mechanism is slidably connected to the inner side of the second telescopic mechanism, and the outer side of the fourth telescopic mechanism is slidably connected to the inner side of the third telescopic mechanism. The motor 1 and the rotating shaft 2 are both connected to the first telescopic mechanism. For example, the motor 1 is connected to the first telescopic frame 4 through a connecting plate 3.

[0053] The front and rear ends of the first telescopic mechanism (e.g., the first telescopic frame 4), the front and rear ends of the second telescopic mechanism (e.g., the second telescopic frame 21), and the front and rear ends of the third telescopic mechanism (e.g., the third telescopic frame 36) are all equipped with pulleys. One end of the belt 55 is connected to the fourth telescopic mechanism, and the other end of the belt 55 is wound around the pulley, the rotating shaft 2, and the movable end of the motor 1 before connecting to the fourth telescopic mechanism. The motor 1 drives the rotating shaft 2 to rotate. The front end of the fourth telescopic mechanism (e.g., the fourth telescopic frame 43) is equipped with several suction cups for fixing the workpiece. For example, the four corners of the fourth telescopic frame 43 are respectively equipped with the first suction cup 44, the second suction cup 46, the third suction cup 47, and the fourth suction cup 49. The workpiece is more firmly attached, and large workpieces are less likely to slip during transport, making it safer.

[0054] The front end of the fourth telescopic frame 43 is also provided with a first sensor 45, a second sensor 48 and a third sensor 50. The first sensor 45 is connected to the right side of the fourth telescopic frame 43, the second sensor 48 is connected to the left side of the fourth telescopic frame 43 and the third sensor 50 is connected to the lower side of the fourth telescopic frame 43.

[0055] When motor 1 is running, shaft 2 uses belt 55 to bring the rear pulley of the third telescopic mechanism closer to the front pulley of the second telescopic mechanism, and the rear pulley of the second telescopic mechanism closer to the front pulley of the first telescopic mechanism. At the same time, one end of belt 55 moves away from the first telescopic mechanism and stretches belt 55 (i.e., controls the length of the four telescopic frames to achieve forward workpiece feeding). In other words, by tightening a section of the corresponding belt 55 (such as the lower section of belt 55), the rear pulley of the third telescopic mechanism is brought closer to the front pulley of the second telescopic mechanism, so that the second telescopic frame 21 extends out of the first telescopic frame 4, the third telescopic frame 36 extends out of the second telescopic frame 21, and the fourth telescopic frame 43 extends out of the third telescopic frame 36. That is, the fourth telescopic frame 43 extends forward with the workpiece, realizing the forward workpiece feeding operation.

[0056] When motor 1 runs in reverse, shaft 2 drives one end of belt 55 to pull the fourth telescopic mechanism back towards the first telescopic mechanism (i.e., shortens the four telescopic frames, realizing the retraction of the device). At the same time, the rear pulley of the third telescopic mechanism and the front pulley of the second telescopic mechanism stretch belt 55, and the rear pulley of the second telescopic mechanism and the front pulley of the first telescopic mechanism stretch belt 55. In other words, by tightening the other section of the corresponding belt 55 (such as the other section of belt 55 located above), the fourth telescopic mechanism is pulled back towards the first telescopic mechanism. At this time, the rear pulley of the third telescopic mechanism and the front pulley of the second telescopic mechanism move away from each other, realizing the retraction of the second telescopic frame 21 to the first telescopic frame 4, the retraction of the third telescopic frame 36 to the second telescopic frame 21, and the retraction of the fourth telescopic frame 43 to the third telescopic frame 36, that is, realizing the retraction operation of the fourth telescopic frame 43.

[0057] The first telescopic mechanism includes a first telescopic frame 4. The upper rear end of the first telescopic frame 4 is connected to a first pulley 5 and a second pulley 6, respectively. The lower rear end of the first telescopic frame 4 is connected to a third pulley 8 and a fourth pulley 10, respectively. The lower front end of the first telescopic frame 4 is connected to a fifth pulley 14 and a sixth pulley 16, respectively. Preferably, the third pulley 8 is connected to the first telescopic frame 4 via a first fixed bracket 7, and the fourth pulley 10 is connected to the first telescopic frame 4 via a second fixed bracket 9; the fifth pulley 14 is connected to the first telescopic frame 4 via a third fixed bracket 13, and the sixth pulley 16 is connected to the first telescopic frame 4 via a fourth fixed bracket 15. The first telescopic frame 4 is connected to a fourth sensor 12 via a sensor bracket 11. The fourth sensor 12 is used to sense or identify whether the telescopic belt conveyor has completed its retraction operation.

[0058] The second telescopic mechanism includes a second telescopic frame 21. The rear end of the second telescopic frame 21 is connected to a seventh pulley 18 and an eighth pulley 20, respectively. For example, the seventh pulley 18 is connected to the second telescopic frame 21 through a fifth fixed bracket 17, and the eighth pulley 20 is connected to the second telescopic frame 21 through a sixth fixed bracket 19. The lower front end of the second telescopic frame 21 is connected to a ninth pulley 22 and a tenth pulley 25, respectively. The ninth pulley 22 is connected to the second telescopic frame 21 through a seventh fixed bracket 23, and the tenth pulley 25 is connected to the second telescopic frame 21 through an eighth fixed bracket 24.

[0059] Preferably, the seventh pulley 18 and the eighth pulley 20 are respectively located at the middle of the rear end of the second telescopic frame 21. The seventh pulley 18 and the fifth pulley 14 are located in the same vertical plane. The seventh pulley 18 is located at the upper rear end, and the fifth pulley 14 is located at the lower front end. The first belt 55-1 is wound around the fifth pulley 14 and the seventh pulley 18 to form a Z-shaped bend.

[0060] The eighth pulley 20 and the sixth pulley 16 are located in the same vertical plane. The eighth pulley 20 is located at the upper rear, and the sixth pulley 16 is located at the lower front. The second belt 55-2 is wound around the sixth pulley 16 and the eighth pulley 20 to form a Z-shaped bend.

[0061] The rear end of the second telescopic frame 21 is provided with a third limiting plate 41 and a fourth limiting plate 42 for limiting the movement of the front or rear end of the first telescopic frame 4. When the second telescopic frame 21 retracts into the first telescopic frame 4, to prevent the motor 1 from continuing to work when the second telescopic frame 21 reaches its maximum stroke, the third limiting plate 41 and the fourth limiting plate 42 are provided to protect the telescopic belt conveyor device for use within a safe stroke range.

[0062] The second telescopic mechanism has a second limiting groove on its outer side and a first limiting block on its inner side. The first limiting block matches the second limiting groove, so that the outer side of the second telescopic mechanism and the inner side of the first telescopic mechanism can be slidably connected. At the same time, the first limiting block is embedded in the second limiting groove, so that when the second telescopic frame 21 moves within the first telescopic frame 4, the operation of extending or retracting between the first telescopic frame 4 and the second telescopic frame 21 is more stable.

[0063] The third telescopic mechanism includes a third telescopic frame 36. The rear end of the third telescopic frame 36 is connected to the eleventh pulley 27 and the twelfth pulley 29, respectively. For example, the eleventh pulley 27 is connected to the third telescopic frame 36 through the ninth fixed bracket 26, and the twelfth pulley 29 is connected to the third telescopic frame 36 through the tenth fixed bracket 28. The lower front end of the third telescopic frame 36 is connected to the thirteenth pulley 37 and the fourteenth pulley 39, respectively. For example, the thirteenth pulley 37 is connected to the third telescopic frame 36 through the eleventh fixed bracket 38, and the fourteenth pulley 39 is connected to the third telescopic frame 36 through the twelfth fixed bracket 40.

[0064] Preferably, the eleventh pulley 27 and the twelfth pulley 29 are respectively located at the middle of the rear end of the third telescopic frame 36. The eleventh pulley 27 and the ninth pulley 22 are located in the same vertical plane, with the eleventh pulley 27 located at the upper rear and the ninth pulley 22 located at the lower front. The first belt 55-1 forms a Z-shaped bend after wrapping around the ninth pulley 22 and the eleventh pulley 27. When the four-section telescopic mechanism extends, the corresponding section of the belt 55 forms a small Z-shape, and when the four-section telescopic mechanism retracts, the corresponding section of the belt 55 forms a large Z-shape.

[0065] The twelfth pulley 29 and the tenth pulley 25 are located in the same vertical plane. The twelfth pulley 29 is located at the upper rear, and the tenth pulley 25 is located at the lower front. The second belt 55-2 is wound around the tenth pulley 25 and the twelfth pulley 29 to form a Z-shaped bend. When the four-section telescopic mechanism extends, the corresponding section of the belt 55 forms a small Z-shape. When the four-section telescopic mechanism retracts, the corresponding section of the belt 55 forms a large Z-shape.

[0066] The rear end of the third telescopic frame 36 is provided with a first limiting plate 30 and a second limiting plate 31 for limiting the movement of the front or rear end of the second telescopic frame 21. When the third telescopic frame 36 retracts into the second telescopic frame 21, to prevent the motor 1 from continuing to operate when the third telescopic frame 36 reaches its maximum stroke, the first limiting plate 30 and the second limiting plate 31 are provided to protect the telescopic belt conveyor device and ensure it operates within its safe stroke range.

[0067] A third limiting groove is provided on the outer side of the third telescopic mechanism, and a second limiting block is provided on the inner side of the second telescopic mechanism. The second limiting block matches the third limiting groove, enabling a slidable connection between the outer side of the third telescopic mechanism and the inner side of the second telescopic mechanism. Simultaneously, the second limiting block is embedded in the third limiting groove, ensuring smoother extension or retraction between the second telescopic frame 21 and the third telescopic frame 36 when the third telescopic frame 36 moves within the second telescopic frame 21.

[0068] The fourth telescopic mechanism includes a fourth telescopic frame 43, with a first clamping plate 32 and a second clamping plate 33 disposed on the right rear end of the fourth telescopic frame 43, and a third clamping plate 34 and a fourth clamping plate 35 disposed on the left rear end of the fourth telescopic frame 43.

[0069] The rear end of the fourth telescopic frame 43 is provided with a fifth limiting plate 51 and a sixth limiting plate 52 for limiting the movement of the front or rear end of the third telescopic frame 36. When the fourth telescopic frame 43 retracts into the third telescopic frame 36, to prevent the motor 1 from continuing to operate when the fourth telescopic frame 43 reaches its maximum stroke, the fifth limiting plate 51 and the sixth limiting plate 52 are provided to protect the telescopic belt conveyor device and ensure it operates within its safe stroke range.

[0070] The fourth telescopic mechanism has a fourth limiting groove on its outer side and a third limiting block on its inner side. The third limiting block matches the fourth limiting groove, enabling the outer side of the fourth telescopic mechanism to be slidably connected to the inner side of the third telescopic mechanism. At the same time, the third limiting block is embedded in the fourth limiting groove, ensuring smoother operation of the extension or retraction between the third telescopic frame 36 and the fourth telescopic frame 43 when the fourth telescopic frame 43 moves within the third telescopic frame 36.

[0071] The bottom of the fourth telescopic frame 43 is provided with a thirteenth fixed bracket 53 and a fourteenth fixed bracket 54.

[0072] The belt 55 includes a first belt 55-1, a second belt 55-2, and a third belt 55-3. One end of the first belt 55-1 is connected to the first clamping plate 32. The other end of the first belt 55-1 is sequentially wound around the first pulley 5, the rotating shaft 2, the third pulley 8, the fifth pulley 14, the seventh pulley 18, the ninth pulley 22, the eleventh pulley 27, and the thirteenth pulley 37 before connecting to the second clamping plate 33. One end of the second belt 55-2 is connected to the third clamping plate 34. The other end of the second belt 55-2 is sequentially wound around the second pulley 6, the rotating shaft 2, the fourth pulley 10, the sixth pulley 16, the eighth pulley 20, the tenth pulley 25, the twelfth pulley 29, and the fourteenth pulley 39 before connecting to the fourth clamping plate 35. The rotating shaft 2 and the movable end of the motor 1 are connected by the third belt 55-3.

[0073] The telescopic belt conveyor in Embodiment 1 occupies a smaller area and features two belts 55 (i.e., the first belt 55-1 and the second belt 55-2). With the cooperation of multiple pulleys and corresponding belts 55, the four telescopic frames operate within corresponding limiting grooves, resulting in more stable and smooth operation. The telescopic belt conveyor's extension and retraction length is controllable, making it suitable for various automated production line scenarios, reducing limitations, and improving production line efficiency.

[0074] The working principle and usage process of the telescopic belt conveyor in Embodiment 1 are as follows: The device is fixed to other devices or support columns via the thirteenth fixed bracket 53 and the fourteenth fixed bracket 54 to reach a specified height, thus increasing the versatility of its application scenarios. Motor 1 drives the rotating shaft 2, which in turn drives the belt 55 (e.g., the first belt 55-1 and the second belt 55-2) for transmission. The four-section telescopic mechanism is equipped with multiple sets of pulleys. The two belts 55 (e.g., the first belt 55-1 and the second belt 55-2) drive the multiple sets of pulleys to achieve the maximum telescopic distance from the first to the fourth section. Three sets of sensors detect the workpiece position, and four sets of suction cups fix the workpiece. To prevent excessive retraction of the telescopic mechanism, a third limiting plate 41 and a fourth limiting plate 42 are provided between the first and second telescopic mechanisms. A first limiting plate 30 and a second limiting plate 31 are provided between the second and third telescopic mechanisms. A fifth limiting plate 51 and a sixth limiting plate 52 are provided between the third and fourth telescopic mechanisms to prevent excessive retraction and interference. A fourth sensor 12 is provided in the first telescopic frame 4 to identify whether the telescopic belt conveyor has completed the retraction operation.

[0075] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0076] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0077] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural or procedural transformations made based on the content of the present utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. A telescopic belt conveyor device, characterized in that: The telescopic belt conveyor includes a first telescopic mechanism, a second telescopic mechanism, a third telescopic mechanism, a fourth telescopic mechanism, a motor (1), a rotating shaft (2), and a belt (55). The outer side of the second telescopic mechanism is slidably connected to the inner side of the first telescopic mechanism, the outer side of the third telescopic mechanism is slidably connected to the inner side of the second telescopic mechanism, and the outer side of the fourth telescopic mechanism is slidably connected to the inner side of the third telescopic mechanism. The motor (1) and the rotating shaft (2) are both connected to the first telescopic mechanism. The front and rear ends of the first telescopic mechanism, the front and rear ends of the second telescopic mechanism, and the front and rear ends of the third telescopic mechanism are all equipped with pulleys. One end of the belt (55) is connected to the fourth telescopic mechanism. The other end of the belt (55) is wound around the pulley, the rotating shaft (2), and the movable end of the motor (1) and then connected to the fourth telescopic mechanism. The motor (1) drives the rotating shaft (2) to rotate. Several suction cups for fixing the workpiece are set at the front end of the fourth telescopic mechanism.

2. The telescopic belt conveyor device according to claim 1, characterized in that: The first telescopic mechanism includes a first telescopic frame (4), the upper rear end of the first telescopic frame (4) is connected to a first pulley (5) and a second pulley (6), the lower rear end of the first telescopic frame (4) is connected to a third pulley (8) and a fourth pulley (10), and the lower front end of the first telescopic frame (4) is connected to a fifth pulley (14) and a sixth pulley (16). The second telescopic mechanism includes a second telescopic frame (21), the rear end of the second telescopic frame (21) is connected to the seventh pulley (18) and the eighth pulley (20) respectively, and the lower front end of the second telescopic frame (21) is connected to the ninth pulley (22) and the tenth pulley (25) respectively. The third telescopic mechanism includes a third telescopic frame (36), the rear end of the third telescopic frame (36) is connected to the eleventh pulley (27) and the twelfth pulley (29) respectively, and the lower front end of the third telescopic frame (36) is connected to the thirteenth pulley (37) and the fourteenth pulley (39) respectively. The fourth telescopic mechanism includes a fourth telescopic frame (43), with a first clamping plate (32) and a second clamping plate (33) provided on the right side of the rear end of the fourth telescopic frame (43), and a third clamping plate (34) and a fourth clamping plate (35) provided on the left side of the rear end of the fourth telescopic frame (43). The belt (55) includes a first belt (55-1), a second belt (55-2), and a third belt (55-3). One end of the first belt (55-1) is connected to the first clamping plate (32). The other end of the first belt (55-1) is wound around the first pulley (5), the shaft (2), the third belt (55-3) pulley (8), the fifth pulley (14), the seventh pulley (18), the ninth pulley (22), the eleventh pulley (27), and the thirteenth pulley (37) in sequence before being connected to the first pulley (55-3). The second clamping plate (33) has one end of the second belt (55-2) connected to the third clamping plate (34). The other end of the second belt (55-2) is wound around the second pulley (6), the shaft (2), the fourth pulley (10), the sixth pulley (16), the eighth pulley (20), the tenth pulley (25), the twelfth pulley (29), and the fourteenth pulley (39) in sequence before being connected to the fourth clamping plate (35). The shaft (2) and the moving end of the motor (1) are connected by the third belt (55-3).

3. The telescopic belt conveyor device according to claim 2, characterized in that: The third belt pulley (55-3) (8) is connected to the first telescopic frame (4) through the first fixed bracket (7), and the fourth belt pulley (10) is connected to the first telescopic frame (4) through the second fixed bracket (9); The fifth pulley (14) is connected to the first telescopic frame (4) through the third fixed bracket (13), and the sixth pulley (16) is connected to the first telescopic frame (4) through the fourth fixed bracket (15); The seventh pulley (18) is connected to the second telescopic frame (21) via the fifth fixed bracket (17), and the eighth pulley (20) is connected to the second telescopic frame (21) via the sixth fixed bracket (19); The ninth pulley (22) is connected to the second telescopic frame (21) via the seventh fixed bracket (23), and the tenth pulley (25) is connected to the second telescopic frame (21) via the eighth fixed bracket (24); The eleventh pulley (27) is connected to the third telescopic frame (36) via the ninth fixed bracket (26), and the twelfth pulley (29) is connected to the third telescopic frame (36) via the tenth fixed bracket (28); The thirteenth pulley (37) is connected to the third telescopic frame (36) via the eleventh fixed bracket (38), and the fourteenth pulley (39) is connected to the third telescopic frame (36) via the twelfth fixed bracket (40).

4. The telescopic belt conveyor device according to claim 3, characterized in that: The rear end of the fourth telescopic frame (43) is provided with a fifth limiting plate (51) and a sixth limiting plate (52) for limiting the front or rear end of the third telescopic frame (36); The rear end of the third telescopic frame (36) is provided with a first limiting plate (30) and a second limiting plate (31) for limiting the front end or rear end of the second telescopic frame (21); The rear end of the second telescopic frame (21) is provided with a third limiting plate (41) and a fourth limiting plate (42) for limiting the front or rear end of the first telescopic frame (4).

5. The telescopic belt conveyor device according to claim 4, characterized in that: The front end of the fourth telescopic frame (43) is also provided with a first sensor (45), a second sensor (48) and a third sensor (50). The first sensor (45) is connected to the right side of the fourth telescopic frame (43), the second sensor (48) is connected to the left side of the fourth telescopic frame (43), and the third sensor (50) is connected to the lower side of the fourth telescopic frame (43).

6. The telescopic belt conveyor device according to claim 5, characterized in that: The seventh pulley (18) and the eighth pulley (20) are respectively located at the middle of the rear end of the second telescopic frame (21). The seventh pulley (18) and the fifth pulley (14) are located in the same vertical plane. The seventh pulley (18) is located at the upper rear end, and the fifth pulley (14) is located at the lower front end. The first belt (55-1) is wound around the fifth pulley (14) and the seventh pulley (18) to form a Z-shaped bend. The eighth pulley (20) and the sixth pulley (16) are located in the same vertical plane. The eighth pulley (20) is located at the upper rear and the sixth pulley (16) is located at the lower front. The second belt (55-2) is wrapped around the sixth pulley (16) and the eighth pulley (20) to form a Z-shaped bend.

7. The telescopic belt conveyor device according to claim 6, characterized in that: The eleventh pulley (27) and the twelfth pulley (29) are respectively located at the middle of the rear end of the third telescopic frame (36). The eleventh pulley (27) and the ninth pulley (22) are located in the same vertical plane. The eleventh pulley (27) is located at the upper rear end, and the ninth pulley (22) is located at the lower front end. The first belt (55-1) is wound around the ninth pulley (22) and the eleventh pulley (27) to form a Z-shaped bend. The twelfth pulley (29) and the tenth pulley (25) are located in the same vertical plane. The twelfth pulley (29) is located at the upper rear, and the tenth pulley (25) is located at the lower front. The second belt (55-2) is wrapped around the tenth pulley (25) and the twelfth pulley (29) to form a Z-shaped bend.

8. The telescopic belt conveyor device according to claim 7, characterized in that: The second limit groove is provided on the outer side of the second telescopic mechanism, and the first limit block is provided on the inner side of the first telescopic mechanism. The first limit block matches the second limit groove. The third limiting groove is provided on the outer side of the third telescopic mechanism, and the second limiting block is provided on the inner side of the second telescopic mechanism. The second limiting block matches the third limiting groove. The fourth limiting groove is provided on the outer side of the fourth telescopic mechanism, and the third limiting block is provided on the inner side of the third telescopic mechanism. The third limiting block matches the fourth limiting groove.

9. The telescopic belt conveyor device according to claim 8, characterized in that: The bottom of the fourth telescopic frame (43) is provided with a thirteenth fixed bracket (53) and a fourteenth fixed bracket (54); The first telescopic frame (4) is connected to the fourth sensor (12) via the sensor bracket (11); The motor (1) is connected to the first telescopic frame (4) via the connecting plate (3); The four corners of the fourth telescopic frame (43) are respectively equipped with a first suction cup (44), a second suction cup (46), a third suction cup (47) and a fourth suction cup (49).

10. A telescopic belt conveyor according to claim 9, characterized in that: The rotating shaft (2) drives one end of the belt (55) to pull the fourth telescopic mechanism back toward the first telescopic mechanism. At the same time, the rear pulley of the third telescopic mechanism and the front pulley of the second telescopic mechanism stretch the belt (55), and the rear pulley of the second telescopic mechanism and the front pulley of the first telescopic mechanism stretch the belt (55). Alternatively, the shaft (2) uses the belt (55) to bring the rear pulley of the third telescopic mechanism closer to the front pulley of the second telescopic mechanism, and the rear pulley of the second telescopic mechanism closer to the front pulley of the first telescopic mechanism. At the same time, one end of the belt (55) moves the fourth telescopic mechanism away from the first telescopic mechanism and stretches the belt (55).

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