Belt type power and free suspension conveying line

Abstract

The utility model provides a belt type power and free suspension conveying line which comprises a track, the track is connected with a front trolley set and a rear trolley set in a sliding mode, and the front trolley set and the rear trolley set slide along the track. A driving motor is arranged at one end of the track, a driving belt is arranged in the track, and the driving motor drives the front trolley set and the rear trolley set to move through the driving belt. The front trolley set comprises a first trolley, a second trolley, a third trolley and a fourth trolley. A first cross beam is hinged between the first trolley and the second trolley, a second cross beam is hinged between the third trolley and the fourth trolley, a first bearing beam is arranged on the lower sides of the first cross beam and the second cross beam, and the two ends of the first bearing beam are hinged to the first cross beam and the second cross beam respectively. The rail is provided with a stopper which stops the third trolley. According to the utility model, accumulation of a plurality of conveying trolleys is realized by virtue of a single stopper, the requirements of a production process are met, the expansibility is high, and the adaptability of a suspension conveying line is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of suspension conveyor lines, and particularly relates to a belt type accumulation suspension conveyor line. Background Art

[0002] In the field of industrial production, suspension conveyor production lines are usually used in combination with production lines or automated production equipment to achieve the transportation of materials to designated workstations. Therefore, the transport trolleys on the suspension conveyor need to be set according to the production line to achieve single-car stop or batch stop at designated positions. Currently available stop mechanisms can stop single-car groups but cannot stop multiple groups of transport trolleys.

[0003] Therefore, the above problems need to be solved urgently. Summary of the Utility Model

[0004] Purpose of the utility model: In order to overcome the above deficiencies, the utility model provides a belt type accumulation suspension conveyor line, which can stop multiple transport trolleys through a single stopper, meet the requirements of the production process, is convenient for transforming the existing suspension conveyor line, has a low transformation cost, and can expand the transport trolleys according to production needs, improving the adaptability of the suspension conveyor line.

[0005] Technical solution: To achieve the above object, the utility model provides a belt - type accumulation suspension conveyor line, which includes a track. A front trolley group and a rear trolley group are slidably connected to the track, and the front trolley group and the rear trolley group slide along the track. One end of the track is provided with a driving motor, and a driving belt is arranged inside the track. The driving motor drives the front trolley group and the rear trolley group to move through the driving belt. The front trolley group includes a first trolley, a second trolley, a third trolley, and a fourth trolley. A first cross - beam is hinged between the first trolley and the second trolley, and a second cross - beam is hinged between the third trolley and the fourth trolley. A first load - bearing beam is arranged under the first cross - beam and the second cross - beam, and both ends of the first load - bearing beam are respectively hinged to the first cross - beam and the second cross - beam. The track is provided with a stopper, and the stopper stops the third trolley. During the working process of this suspension conveyor line, the driving motor drives the front trolley group and the rear trolley group to move along the track through the driving belt, thereby transporting materials. When the materials reach the designated position and it is necessary to stop the front trolley group and the rear trolley group, the stopper disengages the driving block of the third trolley from the belt, and the third trolley stops on the track. The driving blocks of the first trolley, the second trolley, and the fourth trolley are respectively driven by the pressure rails provided on the track, and the driving blocks disengage from the belt, and the first trolley, the second trolley, and the fourth trolley stop. After the front trolley group stops, the rear trolley group abuts against the front trolley group, and the driving block of the rear trolley group disengages from the belt, and the rear trolley group stops running. When it is necessary to continue running, the stopper releases the third trolley, the driving block of the third trolley contacts the belt, the third trolley drives the first trolley, the second trolley, and the fourth trolley to move forward, the first trolley, the second trolley, and the fourth trolley disengage from the pressure rails, and the driving blocks of the first trolley, the second trolley, and the fourth trolley contact the belt to restore power and move forward. After the front trolley group moves forward, the driving block of the rear trolley group contacts the belt to restore power and moves forward. The utility model only requires a single stopper to realize the accumulation of multiple conveying trolleys, meet the requirements of the production process, and has high expandability, improving the adaptability of the suspension conveyor line.

[0006] Further, in the above - mentioned belt - type accumulation suspension conveyor line, the first trolley, the second trolley, the third trolley, and the fourth trolley respectively include a vehicle body, and load - bearing wheels arranged on both sides of the vehicle body. The load - bearing wheels are movably connected to the vehicle body by shafts. A driving block is arranged on the upper side of the vehicle body, and an accumulation wheel is arranged on the lower side of the vehicle body. A connecting rod vertically penetrates the vehicle body, and both ends of the connecting rod are respectively connected to the driving block and the accumulation wheel. A tower spring is sleeved on the upper end of the connecting rod, and both ends of the above - mentioned tower spring are respectively connected to the driving block and the vehicle body. The load - bearing wheels roll along the track, the driving block abuts against the belt, and the belt drives the trolley to move through the driving block. The pressure rail drives the accumulation wheel to move downward, the accumulation wheel drives the driving block to move downward through the connecting rod, the driving block disengages from the belt, the accumulation wheel disengages from the pressure rail, and the tower spring pushes the driving block upward to contact the belt.

[0007] Furthermore, in the above-mentioned belt-type accumulation suspension conveyor line, the stopper includes an L-shaped support plate. The cross-section of the L-shaped support plate is L-shaped. The bottom surface of the horizontal end of the L-shaped support plate is connected to the track. A slide rail is connected to the top surface of the horizontal end of the L-shaped support plate. A square plate is slidably connected to the slide rail. The square plate is slidably connected to guide posts. There are two or more guide posts. The guide posts are horizontally arranged. The guide posts are connected to a vertical plate. A driving cylinder is connected to the side of the vertical plate away from the square plate. The cylinder shaft of the driving cylinder passes through the vertical plate and is connected to the square plate. The driving cylinder drives the vertical plate to reciprocate along the axis of the guide post. A third pressure rail is connected to the lower side of the vertical plate. The third pressure rail drives the accumulation wheels provided on the third trolley to move downward. When it is necessary to stop the conveying trolley, the driving cylinder drives the vertical plate to move horizontally, so that the third pressure rail is located in front of the accumulation wheels of the third trolley. As the third trolley moves, the third pressure rail guides the accumulation wheels to move downward, driving the driving block to disengage from the belt. The third trolley loses power and then stops.

[0008] Furthermore, in the above-mentioned belt-type accumulation suspension conveyor line, a stop bar is provided on the upper side of the third pressure rail. The stop bar is connected to the third pressure rail. The stop bar is provided at one end of the third pressure rail close to the first trolley and extends out of the third pressure rail. A baffle is provided on the top surface of the square plate. A first stop portion is provided at one end of the baffle close to the first trolley. A second stop portion is provided on the side of the baffle away from the first stop portion. An elastic ejector pin and an elastic ejector rod are connected to the vertical end of the L-shaped support plate. The elastic ejector pin abuts against the first stop portion. The elastic ejector rod is connected to the second stop portion. When the first stop portion moves towards the first trolley, the elastic ejector pin applies a thrust to the first stop portion. When the second stop portion moves towards the fourth trolley, the elastic ejector rod applies a thrust to the second stop portion. When the driving block of the third trolley disengages from the belt, the third trolley continues to move forward due to inertia. The third trolley is blocked by the stop bar. The stop bar is impacted by the third trolley, driving the vertical plate to move forward. The elastic ejector pin applies a reverse thrust, causing the vertical plate to move towards the fourth trolley. At this time, the elastic ejector rod applies a thrust, causing the vertical plate to move towards the first trolley. After multiple reciprocating movements, the vertical plate finally stops, realizing the flexible stop of the third trolley.

[0009] Furthermore, in the above-mentioned belt-type accumulation suspension conveyor line, the elastic ejector rod includes a sleeve connected to the vertical end of the L-shaped support plate. A straight rod is slidably connected inside the sleeve. The straight rod passes through the second stop portion. The head of the straight rod is located on the side of the second stop portion away from the sleeve. A spring is provided between the head of the straight rod and the second stop portion.

[0010] Furthermore, in the above-mentioned belt-type accumulation suspension conveyor line, a first rail, a second rail, and a fourth rail are connected to the lower side of the track. When the stopper stops the third trolley, the first rail is disposed under the first trolley, the second rail is disposed under the second trolley, and the fourth rail is disposed under the fourth trolley. The first rail accumulates the first trolley, the second rail accumulates the second trolley, and the fourth rail accumulates the fourth trolley. When the third trolley runs to the lower side of the stopper and the stopper accumulates and stops the third trolley, at this time, the first trolley runs to the upper side of the first rail, and the first rail disengages the driving block of the first trolley from the belt; the second trolley runs to the upper side of the second rail, and the second rail disengages the driving block of the second trolley from the belt; the fourth trolley runs to the upper side of the fourth rail, and the fourth rail disengages the driving block of the fourth trolley from the belt. When it is necessary for the front trolley group to move forward continuously, the stopper resets, the driving block of the third trolley contacts the belt, the third trolley moves forward, the third trolley drives the first trolley, the second trolley, and the fourth trolley to move forward, the first trolley, the second trolley, and the fourth trolley are disengaged from the first rail, the second rail, and the fourth rail respectively, the first trolley, the second trolley, and the fourth trolley resume power, and the front trolley group moves forward, realizing the overall accumulation of the front trolley group.

[0011] Furthermore, in the above-mentioned belt-type accumulation suspension conveyor line, the rear trolley group includes a fifth trolley, a sixth trolley, a seventh trolley, and an eighth trolley, and the fifth trolley, the sixth trolley, the seventh trolley, and the eighth trolley are sequentially slidably connected to the track. A third cross beam is hinged between the fifth trolley and the sixth trolley, a fourth cross beam is hinged between the seventh trolley and the eighth trolley, and a rear trolley accumulation needle is provided at one end of the fourth cross beam away from the third cross beam. A second load-bearing beam is hinged between the third cross beam and the fourth cross beam.

[0012] Furthermore, in the above-mentioned belt-type accumulation suspension conveyor line, a front trolley accumulation needle is connected to one end of the second cross beam away from the first trolley. When the third cross beam abuts against the second cross beam, the front trolley accumulation needle accumulates the fifth trolley. When the front trolley group stops and the rear trolley group contacts the front trolley group, the front trolley accumulation needle pushes the driving block of the fifth trolley downward, and the fifth trolley loses power. When the front trolley group continues to move forward, the front trolley accumulation needle disengages from the fifth trolley, the driving block of the fifth trolley contacts the belt, and the fifth trolley drives the sixth trolley, the seventh trolley, and the eighth trolley to move forward.

[0013] Furthermore, in the above-mentioned belt-type accumulation suspension conveyor line, when the front trolley group stops, the accumulation wheels of the fourth trolley, the sixth trolley, the seventh trolley, and the eighth trolley are on the same side, and the fourth rail accumulates the fourth trolley, the sixth trolley, the seventh trolley, and the eighth trolley. When the front trolley group stops and the rear trolley group contacts the front trolley group, the front trolley accumulation needle at the tail of the front trolley group disengages the fifth trolley in the rear trolley group from the belt, and the sixth trolley, the seventh trolley, and the eighth trolley are accumulated and disengaged from the belt by the fourth rail.

[0014] Furthermore, in the above-mentioned belt-type accumulation suspension conveyor line, one or more rear carriages are slidably connected along the track. To meet the production requirements, multiple groups of rear carriages are provided. The first car of the rear carriage group is accumulated by the accumulation pin at the end of the previous group, and the other cars of the rear carriage group are accumulated by the press rail provided on the track.

[0015] From the above technical solutions, it can be seen that the present utility model has the following beneficial effects: The belt-type accumulation suspension conveyor line of the present utility model realizes the accumulation of multiple conveying carriages through a single stopper, meeting the requirements of the production process. It can set multiple groups of rear carriages according to production needs, achieve overall accumulation without additional stoppers, has high expandability, and improves the adaptability of the suspension conveyor line. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the front view of the belt-type accumulation suspension conveyor line of the present utility model;

[0017] Figure 2 is the sectional view of the belt-type accumulation suspension conveyor line of the present utility model;

[0018] Figure 3 is the structural schematic diagram of the front carriage group;

[0019] Figure 4 is the structural schematic diagram of the first carriage;

[0020] Figure 5 is the structural schematic diagram of the stopper;

[0021] Figure 6 is the partial enlarged view of the stopper.

[0022] In the figure: 1, track; 11, first press rail; 12, second press rail; 13, fourth press rail; 2, front carriage group; 21, first carriage; 211, car body; 212, load-bearing wheel; 213, driving block; 214, accumulation wheel; 215, connecting rod; 22, second carriage; 23, third carriage; 24, fourth carriage; 25, first cross beam; 26, second cross beam; 261, front-carriage accumulation pin; 27, first load-bearing beam; 3, rear carriage group; 31, fifth carriage; 32, sixth carriage; 33, seventh carriage; 34, eighth carriage; 35, third cross beam; 36, fourth cross beam; 361, rear-carriage accumulation pin; 37, second load-bearing beam; 4, driving motor; 5, stopper; 51, L-shaped support plate; 511, elastic ejector pin; 512, elastic ejector rod; 5121, sleeve; 5122, straight rod; 52, slide rail; 53, square plate; 54, guide post; 55, vertical plate; 56, driving cylinder; 57, third press rail; 58, stop bar; 59, baffle; 591, first blocking part; 592, second blocking part. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Embodiment 1

[0024] As Figures 1 - 3 shown, a belt - type accumulation suspension conveyor line includes a track 1. The track 1 is slidably connected with a front trolley group 2 and a rear trolley group 3, and the front trolley group 2 and the rear trolley group 3 slide along the track 1. One end of the track 1 is provided with a driving motor 4, and a driving belt is arranged inside the track 1. The driving motor 4 drives the front trolley group 2 and the rear trolley group 3 to move through the driving belt. The front trolley group 2 includes a first trolley 21, a second trolley 22, a third trolley 23, and a fourth trolley 24. A first cross - beam 25 is hinged between the first trolley 21 and the second trolley 22, a second cross - beam 26 is hinged between the third trolley 23 and the fourth trolley 24, and a first load - bearing beam 27 is arranged on the lower sides of the first cross - beam 25 and the second cross - beam 26. Both ends of the first load - bearing beam 27 are respectively hinged with the first cross - beam 25 and the second cross - beam 26. The track 1 is provided with a stopper 5, and the stopper 5 stops the third trolley 23. The lower side of the track 1 is connected with a first pressing rail 11, a second pressing rail 12, and a fourth pressing rail 13. When the stopper 5 stops the third trolley 23, the first pressing rail 11 is arranged under the first trolley 21, the second pressing rail 12 is arranged under the second trolley 22, and the fourth pressing rail 13 is arranged under the fourth trolley 24. The first pressing rail 11 accumulates the first trolley 21, the second pressing rail 12 accumulates the second trolley 22, and the fourth pressing rail 13 accumulates the fourth trolley 24. The accumulation wheels 214 of the fourth trolley 24, the sixth trolley 32, the seventh trolley 33, and the eighth trolley 34 are located on the same side, and the fourth pressing rail 13 accumulates the fourth trolley 24, the sixth trolley 32, the seventh trolley 33, and the eighth trolley 34.

[0025] The rear trolley group 3 includes a fifth trolley 31, a sixth trolley 32, a seventh trolley 33, and an eighth trolley 34. The fifth trolley 31, the sixth trolley 32, the seventh trolley 33, and the eighth trolley 34 are sequentially slidably connected to the track 1. A third cross - beam 35 is hinged between the fifth trolley 31 and the sixth trolley 32, a fourth cross - beam 36 is hinged between the seventh trolley 33 and the eighth trolley 34, and a rear - trolley accumulation pin 361 is arranged at one end of the fourth cross - beam 36 away from the third cross - beam 35. A second load - bearing beam 37 is hinged between the third cross - beam 35 and the fourth cross - beam 36. A front - trolley accumulation pin 261 is connected to one end of the second cross - beam 26 away from the first trolley 21. The rear trolley group 3 is slidably connected to the track 1 with one or more.

[0026] During the operation of the suspension conveyor, the driving motor 4 drives the front trolley group 2 and the rear trolley group 3 to move along the track 1 through the driving belt, thereby transporting materials. When the materials reach the designated position and it is necessary to stop the front trolley group 2 and the rear trolley group 3, the stopper 5 disengages the driving block of the third trolley 23 from the belt, and the third trolley 23 stops on the track. At this time, the first trolley 21 runs to the upper side of the first rail 11, and the first rail 11 disengages the driving block of the first trolley 21 from the belt. The second trolley 22 runs to the upper side of the second rail 12, and the second rail 12 disengages the driving block of the second trolley 22 from the belt. The fourth trolley 24 runs to the upper side of the fourth rail 13, and the fourth rail 13 disengages the driving block of the fourth trolley 24 from the belt. When it is necessary for the front trolley group 2 to move forward continuously, the stopper 5 resets, the driving block of the third trolley 23 contacts the belt, the third trolley 23 moves forward, and the third trolley 23 drives the first trolley 21, the second trolley 22, and the fourth trolley 24 to move forward. The first trolley 21, the second trolley 22, and the fourth trolley 24 are disengaged from the first rail 11, the second rail 12, and the fourth rail 13 respectively, and the first trolley 21, the second trolley 22, and the fourth trolley 24 resume power, and the front trolley group 2 moves forward.

[0027] After the front trolley group 2 stops, the rear trolley group 3 abuts against the front trolley group 2, and the front car accumulation pin 261 pushes the driving block of the fifth trolley 31 downward, and the fifth trolley 31 loses power. The sixth trolley 32, the seventh trolley 33, and the eighth trolley 34 are accumulated and disengaged from the belt by the fourth rail 13, and the rear trolley group 3 stops. When the front trolley group 2 moves forward continuously, the front car accumulation pin 261 is disengaged from the fifth trolley 31, the driving block of the fifth trolley 31 contacts the belt, and the fifth trolley 31 drives the sixth trolley 32, the seventh trolley 33, and the eighth trolley 34 to move forward and disengage from the fourth rail 13, and the sixth trolley 32, the seventh trolley 33, and the eighth trolley 34 resume power.

[0028] When there are multiple groups of rear trolley groups 3, the accumulation pin at the tail end of the previous group accumulates the first trolley of the rear trolley group, and the other trolleys of the rear trolley group are accumulated through the rails provided on the track, so as to achieve overall control.

[0029] Such as Figure 4The shown belt - type accumulation suspension conveyor line, the first trolley 21, the second trolley 22, the third trolley 23, and the fourth trolley 24 respectively include a vehicle body 211, and load - bearing wheels 212 provided on both sides of the vehicle body 211. The load - bearing wheels 212 are axially movably connected to the vehicle body 211. A driving block 213 is provided on the upper side of the vehicle body 211, an accumulation wheel 214 is provided on the lower side of the vehicle body 211, a connecting rod 215 is vertically penetrated through the vehicle body 211, and both ends of the connecting rod 215 are respectively connected to the driving block 213 and the accumulation wheel 214. A tower spring is sleeved on the upper end of the connecting rod 215, and both ends of the above - mentioned tower spring are respectively connected to the driving block 213 and the vehicle body 211. The load - bearing wheels 212 roll along the track 1, the driving block 213 abuts against the belt, and the belt drives the trolley to move through the driving block 213. The pressing rail drives the accumulation wheel 214 to move downward, the accumulation wheel 214 drives the driving block 213 to move downward through the connecting rod 215, the driving block 213 disengages from the belt, the accumulation wheel 214 disengages from the pressing rail, and the tower spring pushes the driving block 213 to move upward and contact the belt.

[0030] As Figures 5 - 6 For the shown belt - type accumulation suspension conveyor line, the stopper 5 includes an L - shaped support plate 51. The cross - section of the L - shaped support plate 51 is L - shaped. The bottom surface of the horizontal end of the L - shaped support plate 51 is connected to the track 1. A slide rail 52 is connected to the top surface of the horizontal end of the L - shaped support plate 51. A square plate 53 is slidably connected to the slide rail 52. The square plate 53 is slidably connected to guide columns 54. There are 2 or more guide columns 54. The guide columns 54 are horizontally arranged. The guide columns 54 are connected to a vertical plate 55. A driving cylinder 56 is connected to the side of the vertical plate 55 away from the square plate 53. The cylinder shaft of the driving cylinder 56 passes through the vertical plate 55 and is connected to the square plate 53. The driving cylinder 56 drives the vertical plate 55 to reciprocate along the axis of the guide column 54. A third pressing rail 57 is connected to the lower side of the vertical plate 55. The third pressing rail 57 drives the accumulation wheel 214 provided on the third trolley 23 to move downward. A stop bar 58 is provided on the upper side of the third pressing rail 57. The stop bar 58 is connected to the third pressing rail 57. The stop bar 58 is provided at one end of the third pressing rail 57 close to the first trolley 21, and the stop bar 58 extends out of the third pressing rail 57. A baffle 59 is provided on the top surface of the square plate 53. A first blocking portion 591 is provided at one end of the baffle 59 close to the first trolley 21, and a second blocking portion 592 is provided on the side of the baffle 59 away from the first blocking portion 591. An elastic ejector pin 511 and an elastic ejector rod 512 are connected to the vertical end of the L - shaped support plate 51. The elastic ejector pin 511 abuts against the first blocking portion 591, and the elastic ejector rod 512 is connected to the second blocking portion 592. The elastic ejector rod 512 includes a sleeve 5121 connected to the vertical end of the L - shaped support plate 51. A straight rod 5122 is slidably connected in the sleeve 5121. The straight rod 5122 passes through the second blocking portion 592. The head of the straight rod 5122 is provided on the side of the second blocking portion 592 away from the sleeve 5121, and a spring is provided between the head of the straight rod 5122 and the second blocking portion 592.

[0031] When it is necessary to stop the conveying trolley, the driving cylinder 56 drives the vertical plate 55 to move horizontally, so that the third pressing rail 57 is located in front of the accumulation wheel 214 of the third trolley 23. As the third trolley 23 moves, the third pressing rail 57 guides the accumulation wheel 214 to move downward, driving the driving block 213 to disengage from the belt, and the third trolley 23 loses power. At this time, the third trolley 23 continues to move forward under the influence of inertia, and the third trolley 23 is blocked by the blocking rod 58. The blocking rod 58 is impacted by the third trolley 23, driving the vertical plate 55 to move forward, and the elastic ejector pin 511 applies a reverse thrust, causing the vertical plate 55 to move towards the fourth trolley 24. At this time, the straight rod 5122 is driven to move towards the fourth trolley 24, and the spring between the head of the straight rod 5122 and the second blocking portion 592 is compressed. The spring applies a thrust to the straight rod 5122, causing the vertical plate 55 to move towards the first trolley 21. After multiple repeated movements of the vertical plate 55, the inertia is offset, and finally the vertical plate 55 stops, realizing the flexible stop of the third trolley 23.

[0032] The above embodiments are exemplary. Their purpose is to illustrate the technical concept and characteristics of the present invention, so that those skilled in this field can understand the content of the present invention and implement it accordingly, and the protection scope of the present invention cannot be limited thereby. Any equivalent changes or modifications made according to the spirit and essence of the present invention should be covered within the protection scope of the present invention.

Claims

1. A belt-type accumulation suspension conveyor line, characterized in that: The invention comprises a track (1), wherein the track (1) is slidably connected to a front trolley group (2) and a rear trolley group (3), wherein the front trolley group (2) and the rear trolley group (3) slide along the track (1); a driving motor (4) is provided at one end of the track (1), a driving belt is provided inside the track (1), and the driving motor (4) drives the front trolley group (2) and the rear trolley group (3) to move via the driving belt; the front trolley group (2) comprises a first trolley (21), a second trolley (22), a third trolley (23), and a fourth trolley (24). A first crossbeam (25) is hingedly connected between the first trolley (21) and the second trolley (22); a second crossbeam (26) is hingedly connected between the third trolley (23) and the fourth trolley (24); a first load-bearing beam (27) is provided at the lower side of the first crossbeam (25) and the second crossbeam (26); two ends of the first load-bearing beam (27) are respectively hingedly connected to the first crossbeam (25) and the second crossbeam (26); the track (1) is provided with a stopper (5), and the stopper (5) stops the third trolley (23).

2. The belt-type accumulation and suspension conveyor line according to claim 1 is characterized in that: The first trolley (21), the second trolley (22), the third trolley (23), and the fourth trolley (24) respectively comprise a vehicle body (211) and load-bearing wheels (212) arranged on both sides of the vehicle body (211); the load-bearing wheels (212) are movably connected to the vehicle body (211) axis; a driving block (213) is arranged on the upper side of the vehicle body (211); an accumulation wheel (214) is arranged on the lower side of the vehicle body (211); a connecting rod (215) is vertically passed through the vehicle body (211); two ends of the connecting rod (215) are respectively connected to the driving block (213) and the accumulation wheel (214); a tower spring is sleeved on the upper end of the connecting rod (215); two ends of the tower spring are respectively connected to the driving block (213) and the vehicle body (211).

3. The belt-type accumulation and suspension conveyor line according to claim 2 is characterized in that: The stopper (5) comprises an L-shaped support plate (51), the L-shaped support plate (51) has an L-shaped cross section, the bottom surface of the horizontal end of the L-shaped support plate (51) is connected to the track (1), the top surface of the horizontal end of the L-shaped support plate (51) is connected to a slide rail (52), the slide rail (52) is slidably connected to a square plate (53), the square plate (53) is slidably connected to a guide column (54), two or more guide columns (54) are provided, the guide columns (54) are arranged horizontally, and the guide columns (54) are arranged horizontally. ) is connected to a vertical plate (55), and a driving cylinder (56) is connected to the side of the vertical plate (55) away from the square plate (53). The cylinder shaft of the driving cylinder (56) passes through the vertical plate (55) and is connected to the square plate (53). The driving cylinder (56) drives the vertical plate (55) to reciprocate along the axis of the guide column (54); the lower side of the vertical plate (55) is connected to a third pressure rail (57), and the third pressure rail (57) drives the accumulation wheel (214) provided on the third trolley (23) to move downward.

4. The belt-type accumulation and suspension conveyor line according to claim 3 is characterized in that: A stopper (58) is provided on the upper side of the third pressure rail (57), the stopper (58) is connected to the third pressure rail (57), the stopper (58) is arranged at one end of the third pressure rail (57) close to the first trolley (21), and the stopper (58) extends out of the third pressure rail (57); a stopper (59) is provided on the top surface of the square plate (53), the end of the stopper (59) close to the first trolley (21) is provided with a first stopper (591), and the side of the stopper (59) away from the first stopper (591) is provided with a second stopper (592); an elastic ejector pin (511) and an elastic ejector rod (512) are connected to the vertical end of the L-shaped support plate (51), the elastic ejector pin (511) is in contact with the first stopper (591), and the elastic ejector rod (512) is connected to the second stopper (592).

5. The belt-type accumulation suspension conveyor line according to claim 4 is characterized in that: The elastic push rod (512) comprises a sleeve (5121) connected to the vertical end of the L-shaped support plate (51), a straight rod (5122) is slidably connected inside the sleeve (5121), the straight rod (5122) passes through the second stopper (592), the head of the straight rod (5122) is arranged on a side of the second stopper (592) away from the sleeve (5121), and a spring is arranged between the head of the straight rod (5122) and the second stopper (592).

6. The belt-type accumulation and suspension conveyor line according to claim 1 is characterized in that: The lower side of the track (1) is connected to a first pressure rail (11), a second pressure rail (12), and a fourth pressure rail (13); when the stopper (5) stops the third trolley (23), the first pressure rail (11) is arranged at the lower side of the first trolley (21), the second pressure rail (12) is arranged at the lower side of the second trolley (22), and the fourth pressure rail (13) is arranged at the lower side of the fourth trolley (24); the first pressure rail (11) accumulates the first trolley (21), the second pressure rail (12) accumulates the second trolley (22), and the fourth pressure rail (13) accumulates the fourth trolley (24).

7. The belt-type accumulation and suspension conveyor line according to claim 6 is characterized in that: The rear trolley group (3) comprises a fifth trolley (31), a sixth trolley (32), a seventh trolley (33), and an eighth trolley (34); the fifth trolley (31), the sixth trolley (32), the seventh trolley (33), and the eighth trolley (34) are slidably connected to the track (1) in sequence; a third crossbeam (35) is hingedly connected between the fifth trolley (31) and the sixth trolley (32); a fourth crossbeam (36) is hingedly connected between the seventh trolley (33) and the eighth trolley (34); a rear trolley storage needle (361) is provided at one end of the fourth crossbeam (36) away from the third crossbeam (35); and a second load-bearing beam (37) is hingedly connected between the third crossbeam (35) and the fourth crossbeam (36).

8. The belt-type accumulation and suspension conveyor line according to claim 7 is characterized in that: The end of the second crossbeam (26) away from the first trolley (21) is connected to a front-carriage accumulating needle (261); when the third crossbeam (35) and the second crossbeam (26) are in contact, the front-carriage accumulating needle (261) accumulates the fifth trolley (31).

9. The belt-type accumulation and suspension conveyor line according to claim 6, characterized in that: The accumulation wheels (214) provided on the fourth trolley (24), the sixth trolley (32), the seventh trolley (33), and the eighth trolley (34) are located on the same side; when the front trolley group (2) stops, the fourth pressure rail (13) forms an accumulation for the fourth trolley (24), the sixth trolley (32), the seventh trolley (33), and the eighth trolley (34).

10. The belt-type accumulation suspension conveyor line according to claim 1, characterized in that: The rear trolley group (3) is slidably connected to one or more tracks (1).

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