Four-way bumper delivery system

Abstract

This invention discloses a four-mounted bumper conveying system, comprising: a traveling trolley, a ground rail, a lifting guide rail, and a pulling drive device; the traveling trolley includes: a traveling body, a guide rod, a lifting rod, a fixed mounting arm, a lifting mounting arm, and a positioning seat. The traveling body is slidably mounted on the ground rail. A guide rod is fixed to the traveling body, and a fixed mounting arm is mounted on the guide rod. A lifting rod that can be raised and lowered is mounted on the guide rod, and a lifting mounting arm is fixed to the lifting rod. Positioning seats for positioning the car bumper are mounted on both the lifting mounting arm and the fixed mounting arm; a lifting guide rail is installed on the top of the primer spraying chamber, and the lifting guide rail interacts with the lifting rod to raise the lifting rod and the lifting rod mounting arm. This four-mounted bumper conveying system solves the problem in the prior art where only a single-layer bumper conveying method can be used due to the height limitation of the flame treatment chamber.

Description

Technical Field

[0001] This invention relates to equipment for bumper production, specifically to a four-mounted bumper conveying system. Background Technology

[0002] During the production process, the bumper needs to pass through the flame treatment chamber and the primer spraying chamber in sequence. In order to achieve automated production of bumpers, a bumper conveying system is needed to automatically transport the bumpers.

[0003] In the prior art, the bumper conveying system includes: a traveling trolley, a ground rail, positioning seats, mounting arms, and a pulling drive device. The traveling trolley is slidably mounted on the ground rail. The mounting arm is mounted on the traveling trolley and is located in the horizontal direction. Two positioning seats are mounted on the mounting arm, and a bumper is mounted on each positioning seat. The traveling trolley is connected to the output end of the pulling drive device. The traveling trolley moves under the drive of the pulling drive device, thereby enabling the traveling trolley to drive the movement of two bumpers on one layer through the mounting arms and positioning seats, realizing the conveying of the bumpers between the flame treatment chamber and the primer spraying chamber.

[0004] However, the aforementioned bumper conveying system still has drawbacks: due to the limited height of the flame treatment chamber, only two adjacent bumpers can pass through. During the primer spraying process, sufficient clearance must be maintained between the upper and lower bumpers to ensure uniform coating after spraying. Therefore, to guarantee product quality, a single mounting arm method (i.e., a single-layer bumper conveying method) is generally used, meaning two bumpers are mounted on a single mounting arm. This reduces production efficiency and cannot meet the requirements of high-speed, modern production. Summary of the Invention

[0005] The present invention provides a four-mounted bumper conveying system to solve the problem that the existing technology can only use a single-layer bumper conveying method due to the height limitation of the flame treatment chamber.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] This invention discloses a four-mounted bumper conveying system, comprising: a traveling trolley, a ground rail, a lifting guide rail, and a pulling drive device; the traveling trolley includes: a traveling body, a guide rod, a lifting rod, a fixed mounting arm, a lifting mounting arm, and a positioning seat. The traveling body is slidably mounted on the ground rail. A guide rod is fixed on the traveling body, and a fixed mounting arm is mounted on the guide rod. A lifting rod that can be raised and lowered is mounted on the guide rod, and a lifting mounting arm is fixed on the lifting rod. Positioning seats for positioning car bumpers are mounted on both the lifting mounting arm and the fixed mounting arm; a lifting guide rail is installed on the top of the primer spraying chamber, and the lifting guide rail interacts with the lifting rod to raise the lifting rod and the lifting rod mounting arm.

[0008] Preferably, the lifting guide rail includes an inclined section and a horizontal section, the angle between the inclined section and the horizontal direction is an acute angle, the lower end of the inclined section is located on the side of the upper end of the inclined section close to the flame treatment chamber, the upper end of the inclined section is connected to the horizontal section, and the horizontal section is located in the horizontal direction.

[0009] Preferably, the high end of the inclined section is connected to the horizontal section by a connecting section. The connecting section has an arc structure and is tangent to both the inclined section and the horizontal section.

[0010] Preferably, the lifting guide rail is mounted on the wall of the primer spraying chamber via a mounting bracket.

[0011] Preferably, the mounting bracket includes: a linear slide, a slider, a positioning mechanism, and a hanging rail. The linear slide is mounted on the wall of the primer spraying chamber. The slider is slidably mounted on the linear slide and can move vertically under the guidance of the linear slide. The slider is positioned on the linear slide by the positioning mechanism. A hanging rail is fixed on the slider and a lifting guide rail is mounted on the hanging rail.

[0012] Preferably, the positioning mechanism includes: a first top block, a suspension screw, and a rotating disk. The first top block is fixed on a linear slide table, and the first top block is threadedly connected to the suspension screw. The suspension screw is located in the vertical direction, and a rotating disk is provided at the bottom of the suspension screw. The rotating disk is rotatably mounted on the slider, and the rotating disk is coaxial with the suspension screw. The diameter of the rotating disk is larger than the maximum outer diameter of the suspension screw.

[0013] Preferably, the lifting rod includes a vertical section, a curved section, and a pulley. The pulley is slidably mounted on the top surface of the lifting guide rail, and the pulley is rotatably mounted on the curved section. The curved section is mounted on the vertical section, and the vertical section extends into the guide rod. The vertical section is equipped with a lifting mounting arm.

[0014] Preferably, a guide roller is installed on the top surface of the raised guide rail. The top surface of the guide roller has an arc-shaped structure, and the pulley forms a first arc-shaped groove. The inner wall of the first arc-shaped groove is tangent to the guide roller.

[0015] Preferably, the pulley is installed on the curved section via a mounting mechanism.

[0016] Preferably, the mounting mechanism includes: a suspension block, a suspension pin, a hinge shaft, an anti-detachment pin, and a positioning nut. The suspension block has an n-shaped structure. The suspension block is for inserting the pulley. Both the slider and the suspension block are for the hinge shaft to pass through. Anti-detachment pins are installed at both ends of the hinge shaft. The suspension pin is fixed to the top of the suspension block. The suspension pin passes through the curved section. The suspension pin is threadedly connected to the positioning nut. The positioning nut cooperates with the suspension block to clamp the curved section.

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

[0018] By setting the lifting rod to rise and fall relative to the guide rod, and the guide rod guiding the rise and fall of the lifting rod, the lifting mounting arm on the lifting rod can rise and fall relative to the fixed mounting arm on the guide rod. This ensures that, during installation, the car bumper and the lifting mounting arm are in a low position under their own weight, keeping the overall height of the lifting bumper conveyor and the car bumper low. This low height during flame treatment ensures the lifting bumper conveyor can pass smoothly. Subsequently, when the lifting bumper conveyor is transported to the painting execution position, the lifting frame, like a hill, slowly advances, allowing the lifting frame and lifting mounting arm to reach a higher position. This allows the two layers of bumpers to separate, preventing them from obstructing each other, ensuring subsequent painting effects, improving painting efficiency, and increasing output per unit time.

[0019] Other advantages, objectives and features of the present invention will become apparent in part from the following description, and in part from those skilled in the art through study and practice of the invention. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of a four-mounted bumper delivery system.

[0021] Figure 2 An enlarged view showing the raising of the guide rail.

[0022] Figure 3 This is a schematic diagram of the structure of the walking cart.

[0023] Figure 4 for Figure 3 Enlarged view of the middle pulley.

[0024] Figure 5 This is a schematic diagram showing the lifting boom in a lower position.

[0025] Figure 6 This is a schematic diagram showing the lifting boom in the middle position.

[0026] Figure 7 This is a schematic diagram of the structure where the lifting rod is raised to its highest point by the lifting guide rail.

[0027] Figure 8 This is a side view of the vehicle body.

[0028] Figure 9 This is a schematic diagram of the front, middle, or rear wheel frame structure of a vehicle body.

[0029] Reference numerals: 1. Traveling trolley; 2. Guide rod; 3. Lifting rod; 3. Vertical section; 31. Curved section; 32. Pulley; 33. Fixed mounting arm; 4. Lifting mounting arm; 5. Positioning seat; 6. Lifting guide rail; 7. Guide roller; 70. Inclined section; 71. Horizontal section; 72. Connecting section; 73. Mounting mechanism; 8. Suspension block; 81. Suspension pin; 82. Hinge shaft; 83. Anti-detachment pin; 84. Positioning nut; 85. First support block; 91. Second support block; 92. First sleeve; 93. Second sleeve; 94. Car bumper; 10. Linear slide; 111. Slider; 112. Suspension rail; 113. First top block; 114. Suspension screw; 11 5. Walking base frame 12. Walking guide frame 13. Intermediate connecting structure 14. Front walking wheel frame structure 15. Upper frame 51. Upper walking wheel 52. Lower frame 53. Intermediate mounting pin 531. Second nut 532. Guide rod 533. Lower walking wheel 54. Connecting mechanism 55. Connecting block 551. Support cylinder 552. Support rod 553. First bolt 554. First nut 555. Intermediate walking wheel frame structure 16. Rear walking wheel frame structure 17. Ground rail 18. Outer guide rail 181. Inner guide rail 182. First guide block 821. Second guide block 822. Second first top block 823. Detailed Implementation

[0030] The present invention will be further described in conjunction with the accompanying drawings and specific embodiments.

[0031] like Figures 1 to 9 As shown, this invention discloses a four-mounted bumper conveying system, including: a traveling trolley 1, a ground rail 18, a lifting guide rail 7, and a pulling drive device (not shown in the figure; the pulling drive device is a rope type, and its output end is connected to the traveling trolley 1 for easy pulling of the traveling trolley 1); the traveling trolley 1 includes: a traveling body, a guide rod 2, a lifting rod 3, a fixed mounting arm 4, a lifting mounting arm 5, and a positioning seat 6. The traveling body is slidably mounted on the ground rail 18. The guide rod 2 is fixedly mounted on the traveling body, and the fixed mounting arm 4 is mounted on the guide rod 2. The guide rod 2 is mounted with a lifting rod 3 that can be raised and lowered, and the lifting rod 3 is fixedly mounted on the lifting rod 3. The lifting mounting arm 5 is mounted on both the lifting mounting arm 5 and the fixed mounting arm 4, and a positioning seat 6 for positioning the car bumper 10 is mounted on both. A lifting guide rail 7 is installed on the top of the primer spraying chamber. The lifting guide rail 7 interacts with the lifting rod 3, and the lifting guide rail 7 is used to raise the lifting rod 3 and the lifting rod 3 mounting arm.

[0032] The lifting guide rail 7 includes an inclined section 71 and a horizontal section 72. The angle between the inclined section 71 and the horizontal direction is an acute angle. The lower end of the inclined section 71 is located on the side of the upper end of the inclined section 71 closer to the flame treatment chamber. The upper end of the inclined section 71 is connected to the horizontal section 72, which is located in the horizontal direction. The inclined section 71 is designed to hold the top of the lifting rod 3, allowing the lifting rod 3 to be slowly guided from the inclined section 71 to the horizontal section 72. This ensures that when the lifting rod 3 is in the painting station, it can be used to spray paint on the two layers of the car bumper 10, ensuring product quality and improving production efficiency.

[0033] The high end of the inclined section 71 is connected to the horizontal section 72 by a connecting section 73. The connecting section 73 has an arc structure and is tangent to both the inclined section 71 and the horizontal section 72. The connecting section 73 allows the top of the lifting rod 3 to cross from the inclined section 71 to the horizontal section 72.

[0034] The lifting guide rail 7 is mounted on the wall of the primer spraying chamber via a mounting bracket.

[0035] The mounting bracket includes a linear slide 111, a slider 112, a positioning mechanism, and a hanging rail 113. The linear slide 111 is mounted on the wall of the primer spraying chamber. The slider 112 is slidably mounted on the linear slide 111 and can move vertically under the guidance of the linear slide 111. The slider 112 is positioned on the linear slide 111 by the positioning mechanism. The hanging rail 113 is fixed on the slider 112, and a lifting guide rail 7 is mounted on the hanging rail 113. This allows for easy adjustment of the mounting bracket, thereby adjusting the positions of the horizontal section 72, the connecting section 73, and the inclined section 71.

[0036] The positioning mechanism includes a first top block 114, a suspension screw 115, and a rotating disk. The first top block 114 is fixed on the linear slide table 111. The first top block 114 is threadedly connected to the suspension screw 115, which is located vertically. A rotating disk is provided at the bottom of the suspension screw 115 and is rotatably mounted on the slider 112. The rotating disk and the suspension screw 115 are coaxial, and the diameter of the rotating disk is larger than the maximum outer diameter of the suspension screw 115. This mechanism allows the horizontal section 72 to be positioned horizontally by adjusting the suspension screw 115. It also allows the horizontal section 72 to be tangent to the connecting section 73, and the inclined section 71 to be tangent to the connecting section 73. Furthermore, it allows the top of the lifting rod 3 to be hung on the inclined section 71.

[0037] The lifting rod 3 includes a vertical section 31, a curved section 32, and a pulley 33. The pulley 33 is slidably mounted on the top surface of the lifting guide rail 7 and rotatably mounted on the curved section 32. The curved section 32 is mounted on the vertical section 31, which extends into the guide rod 2. The lifting mounting arm 5 is mounted on the vertical section 31. The curved section 32 has a C-shaped structure, with its bottom end connected to the vertical section 31 and its top end connected to the pulley 33. The point of force application between the pulley 33 and the lifting guide rail 7 is in the extension direction of the vertical section 31, thereby ensuring that the vertical section 31, the lifting mounting arm 5, and the two upper car bumpers 10 can be stably suspended on the lifting guide rail 7, guaranteeing the stability of the suspension.

[0038] A guide roller 70 is installed on the top surface of the lifting guide rail 7. The top surface of the guide roller 70 has an arc-shaped structure, and the pulley 33 forms a first arc-shaped groove. The inner wall of the first arc-shaped groove is tangent to the guide roller 70. The guide roller 533 cooperates with the inner wall of the first arc-shaped groove on the pulley 33 to prevent the pulley 33 from disengaging from the lifting guide rail 7 and to ensure the guiding direction.

[0039] The pulley 33 is mounted on the curved section 32 via the mounting mechanism 8. The mounting mechanism 8 enables the pulley 33 to be mounted on the curved section 32.

[0040] The mounting mechanism 8 includes: a suspension block 81, a suspension pin 82, a hinge shaft 83, an anti-detachment pin 84, and a positioning nut 85. The suspension block 81 has an n-shaped structure and is used to insert the pulley 33. Both the slider 112 and the suspension block 81 are through which the hinge shaft 83 passes. Anti-detachment pins 84 are installed at both ends of the hinge shaft 83. The suspension pin 82 is fixed to the top of the suspension block 81 and passes through the curved section 32. The positioning nut 85 is threaded onto the suspension pin 82 and engages with the suspension block 81 to clamp the curved section 32. The suspension pin 82 and the positioning nut 85 are installed at the top of the curved section 32, preventing the suspension block 81 from detaching from the top of the curved section 32. By setting the hinge shaft 83 and the anti-detachment pin 84, the pulley 33 is positioned on the suspension block 81, and the pulley 33 and the hinge shaft 83 can rotate relative to the suspension block 81. Furthermore, by setting the suspension block 81, pulley 33, and lifting guide rail 7 below the curved section 32, since the entire curved section 32 is integrally formed during the mold making process, when the lifting guide rail 7 supports the pulley 33, the pressure of the lifting guide rail 7 on the pulley 33 is pressed tightly onto the top of the curved section 32 by the suspension block 81. This ensures that the entire suspension force is concentrated at the top of the curved section 32, preventing the risk of falling due to a weak connection between the suspension block 81 and the curved section 32, thus guaranteeing safety throughout the suspension process.

[0041] A first support block 91 is fixed on the fixed mounting arm 4, and a second support block 92 is installed on the lifting mounting arm 5. The first support block 91 supports the second support block 92. By setting the height of the first support block 91 and the second support block 92, the distance between the lifting mounting arm 5 and the fixed mounting arm 4 after the lifting mounting arm 5 is lowered is limited, ensuring that the overlap area of ​​the two layers of car bumpers 10 is as required.

[0042] A first sleeve 93 is fixed on the fixed mounting arm 4, and a second sleeve 94 is installed on the lifting mounting arm 5. The first sleeve 93 surrounds the first support block 91, and the second sleeve 94 surrounds the second support block 92. The first sleeve 93 can extend into the first sleeve 93. The first sleeve 93 protects the first support block 91, and the second sleeve 94 protects the second support block 92.

[0043] The traveling vehicle body includes: a traveling base frame 12, a traveling guide frame 13, an intermediate connecting structure 14, a front traveling wheel frame structure 15, an intermediate traveling wheel frame structure 16, and a rear traveling wheel frame structure 17; a guide rod 2 is installed in the middle of the traveling base frame 12, the guide rod 2 is used to install the bumper, the front end of the traveling base frame 12 is hinged to one end of the intermediate connecting structure 14, the axis around which the intermediate connecting structure 14 rotates relative to the front end of the traveling base frame 12 is in the horizontal direction; the other end of the intermediate connecting structure 14 is hinged to the rear end of the traveling guide frame 13, the axis around which the rear end of the traveling guide frame 13 rotates relative to the intermediate connecting structure 14 is in the vertical direction; the front traveling wheel frame structure 15 is installed at the bottom of the front end of the traveling guide frame 13, the intermediate traveling wheel frame structure 16 is installed at the front end of the traveling base frame 12, and the rear traveling wheel frame structure 17 is installed at the rear end of the traveling base frame 12; the front traveling wheel frame structure 15, the intermediate traveling wheel frame structure 16, and the rear traveling wheel frame structure 17 are rotatably mounted on a ground rail 18 located on the ground. The intermediate connecting structure 14 connects the traveling base frame 12 to the traveling guide frame 13. The hinged connection of the intermediate connecting structure 14, the traveling base frame 12, and the traveling guide frame 13 allows the traveling guide frame 13 to rotate horizontally and vertically relative to the traveling base frame 12. This ensures that when traveling on a vertical slope, the traveling guide frame 13 moves up or down first, and when traveling on a horizontal curve, the traveling guide frame 13 turns first. This allows the traveling guide frame 13 to adapt to changes in the slope or horizontal curvature of the ground rail 18 before pulling the subsequent traveling base frame 12 to travel together. This avoids the jamming caused by the straight traveling base frame 12 moving directly, ensuring that the entire conveying operation can proceed normally and smoothly.

[0044] The front traveling wheel frame structure 15, the middle traveling wheel frame structure 16, and the rear traveling wheel frame structure 17 each include: an upper frame body 51, an upper traveling wheel 52, a lower frame body 53, a lower traveling wheel 54, and a connecting mechanism 55. The upper frame body 51 is mounted on the top of the traveling base frame 12 or the traveling guide frame 13, and the upper traveling wheel 52 is mounted on the upper frame body 51. The lower frame body 53 is mounted at the bottom of both the traveling base frame 12 and the traveling guide frame 13, and the lower traveling wheel 54 is mounted on the lower frame body 53. The lower frame body 53 is connected to the traveling base frame 12 and the traveling guide frame 13 through the connecting mechanism 55. The ground rail 18 provides an upper traveling surface and a lower traveling surface. The upper traveling wheel 52 travels on the upper traveling surface, and the lower traveling wheel 54 travels on the lower traveling surface. This achieves dual guidance for the movement of the entire guide rod 2, with the upper traveling wheel 52 on the upper traveling surface and the lower traveling wheel 54 on the lower traveling surface, making the movement more stable.

[0045] The ground rail 18 includes an outer guide rail 181 and an inner guide rail 182. The top surface of the outer guide rail 181 forms an upward traveling surface, and the inner guide rail 182 is installed inside the outer guide rail 181. The inner guide rail 182 forms a downward traveling surface. This provides both an upward and downward traveling surface.

[0046] Both the traveling base frame 12 and the traveling guide frame 13 have outward extending edges on their sides, which provide an installation base for the connecting mechanism 55. The extension edges provide an installation base for the connecting mechanism 55.

[0047] The connecting mechanism 55 includes: a connecting block 551, a support cylinder 552, a support rod 553, a first bolt 554, and a first nut 555. There are two connecting blocks 551. Both the connecting blocks 551 and the extension edge are passed through by the first bolt 554. The first bolt 554 is threadedly connected to the first nut 555. The large end of the first bolt 554 cooperates with the first nut 555 to clamp the connecting block 551 and the extension edge. Each connecting block 551 has a support cylinder 552 extending from the side closest to the other connecting block 551. The support cylinder 552 is used for inserting the end of the support rod 553. The support rod 553 passes through the upper frame 51. This allows the weight of the entire lower frame 53 to be suspended on the support rod 553. Subsequently, when the two support cylinders 552 and the connecting blocks 551 are engaged, the support rod 553 can be positioned and installed, preventing the support rod 553 from disengaging from the support cylinder 552. The connecting block 551 is positioned on the extension edge by the first bolt 554 and the second nut 552.

[0048] The inner guide rail 182 includes a first guide block 821 and a second guide block 822. Both the first guide block 821 and the second guide block 822 are U-shaped structures. The open end of the first guide block 821 faces the open end of the second guide block 822. The inner bottom wall of the first guide block 821 and the second guide block 822 is the lower traveling surface. The lower traveling wheel 54 can extend into both the first guide block 821 and the second guide block 822. The first guide block 821 and the second guide block 822 have a limiting effect on the lower traveling wheel 54, preventing the lower traveling wheel 54 from disengaging from the ground rail 18. There is a distance between the inner top wall of the first guide block 821 and the second guide block 822 and the lower traveling wheel 54, which allows for slight changes when going uphill and turning, ensuring smooth travel.

[0049] A central mounting pin 531 is installed in the middle of the lower frame 53. A guide rod 533 passes through the central mounting pin 531, which is threadedly connected to a second nut 532. The second nut 532 and the central mounting pin 531 largely engage to clamp the guide rod 533. A second top block 823 is fixed to the first guide block 821 and the second guide block 822, and the second top block 823 is tangent to the guide rod 533. By setting the guide rod 533, when the lower frame 53 is perpendicular to the guiding direction of the ground rail 18, the guide tube is tangent to the second top block 823, thus preventing the lower frame 53 from tilting arbitrarily in the direction perpendicular to the guiding direction of the ground rail 18.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A four-mounted bumper conveying system, characterized in that, include: The trolley, ground rails, lifting guide rails, and pulling drive device; The traveling trolley includes: a traveling body, a guide rod, a lifting rod, a fixed mounting arm, a lifting mounting arm, and a positioning seat. The traveling body can be slidably mounted on a ground rail. A guide rod is fixed on the traveling body. A fixed mounting arm is mounted on the guide rod. A lifting rod that can be raised and lowered is mounted on the guide rod. A lifting mounting arm is fixed on the lifting rod. Positioning seats for positioning car bumpers are mounted on both the lifting mounting arm and the fixed mounting arm. A lifting guide rail is installed on the top of the primer spraying chamber. The lifting guide rail works in conjunction with the lifting rod. The lifting guide rail is used to lift the lifting rod and the lifting rod mounting arm. The lifting guide rail includes an inclined section and a horizontal section. The angle between the inclined section and the horizontal direction is an acute angle. The lower end of the inclined section is located on the side of the upper end of the inclined section close to the flame treatment chamber. The upper end of the inclined section is connected to the horizontal section. The horizontal section is located in the horizontal direction. The mounting bracket includes: a linear slide, a slider, a positioning mechanism, and a hanging rail. The linear slide is installed on the wall of the primer spraying chamber. A slider is slidably mounted on the linear slide. The slider can move vertically under the guidance of the linear slide. The slider is positioned on the linear slide by the positioning mechanism. A hanging rail is fixed on the slider, and a lifting guide rail is installed on the hanging rail. The lifting boom includes a vertical section, a curved section, and pulleys. The pulleys are slidably mounted on the top surface of the lifting guide rail. The pulleys are rotatably mounted on the curved section. The curved section is mounted on the vertical section. The vertical section extends into the guide rod and is equipped with a lifting mounting arm.

2. The four-mounted bumper conveying system according to claim 1, characterized in that, The inclined section and the horizontal section are connected by a connecting section. The connecting section has an arc structure and is tangent to both the inclined section and the horizontal section.

3. The four-mounted bumper conveying system according to claim 1 or 2, characterized in that, The lifting guide rail is mounted on the wall of the primer spraying chamber via a mounting bracket.

4. The four-mounted bumper conveying system according to claim 3, characterized in that, The positioning mechanism includes: a first top block, a suspension screw, and a rotating disk. The first top block is fixed on a linear slide table. The first top block is threadedly connected to the suspension screw, which is located in the vertical direction. A rotating disk is provided at the bottom of the suspension screw. The rotating disk is rotatably mounted on the slider. The rotating disk and the suspension screw are coaxial. The diameter of the rotating disk is larger than the maximum outer diameter of the suspension screw.

5. The four-mounted bumper conveying system according to claim 4, characterized in that, A guide roller is installed on the top surface of the raised guide rail. The top surface of the guide roller has an arc-shaped structure, and the pulley forms a first arc-shaped groove. The inner wall of the first arc-shaped groove is tangent to the guide roller.

6. The four-mounted bumper conveying system according to claim 5, characterized in that, The pulley is installed on the curved section via a mounting mechanism.

7. The four-mounted bumper conveying system according to claim 6, characterized in that, The mounting mechanism includes: a suspension block, a suspension pin, a hinge shaft, an anti-detachment pin, and a positioning nut. The suspension block has an n-type structure and is used for inserting pulleys. Both the slider and the suspension block are used for the hinge shaft to pass through. Anti-detachment pins are installed at both ends of the hinge shaft. A suspension pin is fixed to the top of the suspension block. The suspension pin passes through the curved section and is threaded with a positioning nut. The positioning nut cooperates with the suspension block to clamp the curved section.

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