Conveying line

Abstract

The utility model relates to the technical field of conveying lines, in particular to a conveying line. The conveying line comprises a driving mechanism, an installation frame and two transmission mechanisms, the two transmission mechanisms are installed on the two sides of the installation frame respectively, each transmission mechanism comprises a transmission belt, a driving wheel set and a plurality of driven wheel sets, and the driven wheel sets are arranged in the length direction of the installation frame at intervals. And one driven wheel set close to the driving wheel set is in transmission connection with the driving wheel set through one transmission belt. The driving mechanism drives the driving wheel set to rotate, the driving wheel set can drive one driven wheel set close to the driving wheel set to rotate through one transmission belt, and every two adjacent driven wheel sets are in transmission connection through one transmission belt. And therefore, the driven rollers connected to the driven wheel sets can rotate synchronously, and the transmission efficiency of the conveying line during conveying is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of conveyor lines, in particular to a conveyor line. Background Art

[0002] A conveyor is a material handling machine that continuously transports materials along a defined route, also known as a continuous conveyor. Conveyors can transport materials horizontally, inclined, or vertically, and can also be arranged into spatial conveying routes, though conveyor routes are generally fixed. Conveyors have a wide range of applications due to their high transport capacity, long transport distances, and ability to simultaneously perform multiple process operations.

[0003] An existing conveyor line includes a motor, a transmission belt and multiple driven shafts. The output end of the motor is fixedly connected to a driving shaft. The driving shaft and multiple second rotating shafts are driven by a transmission belt, and the pallets are transported on the transmission belt.

[0004] However, in the above method, since the driving shaft and multiple driven shafts are driven by only one transmission belt, the transmission force is weak, and some driven shafts do not rotate synchronously with the driving shaft, so the transmission efficiency during transportation is poor. Utility Model Content

[0005] (1) The problem to be solved by the present invention is: how to improve the transmission efficiency during transportation of the conveyor line.

[0006] (2) Technical solution

[0007] The utility model provides a conveyor line, comprising a driving mechanism, a mounting frame and two transmission mechanisms;

[0008] The two transmission mechanisms are respectively installed on both sides of the mounting frame, and the transmission mechanism includes a transmission belt, a driving wheel group and a plurality of driven wheel groups;

[0009] The plurality of driven wheel groups are arranged at intervals along the length direction of the mounting frame, one of the driven wheel groups close to the driving wheel group is connected to the driving wheel group via a transmission belt, and each two adjacent driven wheel groups are connected via a transmission belt;

[0010] The two driving wheel groups are connected to the driving mechanism, and the driving mechanism drives the two driving wheel groups to rotate around their respective axes;

[0011] One side of the driving wheel group is connected to a driving roller, and one side of each driven wheel group is connected to a driven roller. The upper end surfaces of the multiple driven rollers are located in the same plane, and the multiple driven rollers cooperate to drive the pallet to move.

[0012] According to one embodiment of the present invention, the mounting frame includes two bar frames, the transmission mechanism corresponds to the bar frames one by one, and the transmission mechanism is installed in the bar frames;

[0013] The bar frame includes a first side plate, a bottom plate, a second side plate and a top plate connected in sequence;

[0014] The first side plate and the second side plate are arranged in parallel.

[0015] According to one embodiment of the present invention, the driving wheel assembly includes a driving pulley fixedly connected to the driving roller;

[0016] The driven wheel assembly includes a driven shaft and a driven pulley;

[0017] The driving mechanism is used to drive the driving pulley to rotate around its axis, and the driving pulley and one of the driven pulleys close to the driving pulley are driven by the transmission belt;

[0018] The driven roller is fixedly connected to the driven pulley, and the driven roller and the driven pulley are respectively rotatably connected to the driven shaft through a first bearing;

[0019] The two ends of the driven shaft are respectively arranged on the first side plate and the second side plate;

[0020] Every two adjacent driven pulleys are connected by a transmission belt, and the projections of every two adjacent transmission belts on the horizontal plane do not overlap.

[0021] According to an embodiment of the present invention, the driven wheel assembly further includes a blocking piece fixedly connected to the driven pulley, and the ends of each two adjacent transmission belts close to each other are respectively located on both sides of the blocking piece.

[0022] According to one embodiment of the present invention, both the first side plate and the second side plate are provided with limiting grooves, and both ends of the driven shaft have protrusions, and the limiting grooves and the protrusions cooperate to limit the driven shaft between the first side plate and the second side plate;

[0023] Stoppers are respectively screwed on both ends of the driven shaft.

[0024] According to one embodiment of the present utility model, the driving mechanism includes a driving motor, a universal coupling and two first rotating shafts, the two first rotating shafts are respectively fixedly connected to the two active rollers, one end of one of the rotating shafts passes through one of the second side plates and is fixedly connected to the output end of the driving motor, the other end of the rotating shaft is connected to one end of the universal coupling, and the other end of the universal coupling is fixedly connected to the other first rotating shaft;

[0025] The first rotating shaft, the driving pulley and the driving roller correspond to each other one by one.

[0026] According to one embodiment of the present invention, a support assembly for assisting in the installation of a plurality of the driven wheel sets is provided in the bar frame.

[0027] According to one embodiment of the present invention, the support assembly includes a first strip plate, a limiting column and a screw, wherein an arc groove is formed on the first strip plate, the driven roller corresponds to the arc groove one by one, and the driven roller is slidably connected to the arc groove along its axial direction;

[0028] A limiting block is fixedly connected to a side of the arc groove away from the first side plate, and the limiting block cooperates with the limiting groove provided on the first side plate to limit the position of the driven roller;

[0029] One side of the first strip plate is rotatably connected to the screw, the first strip plate is slidably connected to the limiting column, the screw is threadedly connected to the second side plate, and the limiting column is fixedly connected to the first side plate. The length direction of the screw, the axial direction of the driven roller and the length direction of the limiting column are all the same.

[0030] According to one embodiment of the present invention, a first paving hole for making way for the active roller and a second paving hole for making way for the driven roller are formed on the top plate.

[0031] According to one embodiment of the present invention, the two top plates are fixedly connected to a stop bar on one side away from each other, and the two stop bars cooperate to guide the tray to move only along the length direction of the bar frame;

[0032] The mounting frame comprises a supporting base, and the two bar frames are symmetrically mounted on the supporting base.

[0033] Beneficial effects of the utility model:

[0034] The driving mechanism drives the active wheel group to rotate, and the active wheel group can drive one of the driven wheel groups close to the active wheel group to rotate through a transmission belt. Since each adjacent driven wheel group is connected by a transmission belt, the driven roller connected to each driven wheel group can rotate synchronously, thereby enhancing the transmission force of the conveyor line and improving the transmission efficiency of the conveyor line during transportation.

[0035] Since the transmission is through two sets of transmission mechanisms, both ends of the pallet can move synchronously, which improves the stability during transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0037] Figure 1 A perspective view of an embodiment of the present invention;

[0038] Figure 2 A three-dimensional exploded view of the bar frame, drive mechanism, transmission mechanism, and support assembly provided in an embodiment of the present utility model;

[0039] Figure 3 The embodiment of the present utility model provides Figure 2 Enlarged view of part A;

[0040] Figure 4 A three-dimensional diagram of the bar frame, active roller, driven roller and transmission mechanism provided in an embodiment of the present utility model.

[0041] Icons: 1. Mounting frame; 101. First side panel; 102. Bottom panel; 103. Second side panel; 104. Top panel; 105. Second clearance hole; 106. Limiting slot; 2. Driving mechanism; 201. Driving motor; 202. Rotating shaft; 3. Transmission mechanism; 301. Transmission belt; 302. Driving pulley; 303. Driven shaft; 304. Driven pulley; 305. Block; 306. Block; 4. Driving roller; 5. Support assembly; 501. First strip plate; 502. Arc groove; 503. Limiting block; 504. Screw; 6. Stopper; 7. Driven roller. DETAILED DESCRIPTION

[0042] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0043] like Figures 1-4 As shown, an embodiment of the present utility model provides a conveyor line, comprising a driving mechanism 2, a mounting frame 1 and two transmission mechanisms 3;

[0044] Two transmission mechanisms 3 are respectively installed on both sides of the mounting frame 1. The transmission mechanism 3 includes a transmission belt 301, a driving wheel group and multiple driven wheel groups;

[0045] Multiple driven wheel groups are arranged at intervals along the length direction of the mounting frame 1. One of the driven wheel groups close to the driving wheel group is connected to the driving wheel group via a transmission belt 301. Every two adjacent driven wheel groups are connected via a transmission belt 301.

[0046] The two driving wheel groups are connected to the driving mechanism 2, and the driving mechanism 2 drives the two driving wheel groups to rotate around their respective axes;

[0047] A driving roller 4 is connected to one side of the driving wheel group, and a driven roller 7 is connected to one side of each driven wheel group. The upper end surfaces of the multiple driven rollers 7 are located in the same plane, and the multiple driven rollers 7 are used to drive the pallet to move.

[0048] Specifically, the driving wheel group and one of the driven wheel groups close to the driving wheel group are driven by a transmission belt 301, and the driving mechanism 2 drives the driving wheel group to rotate, and then the driving wheel group can drive one of the driven wheel groups close to the driving wheel group to rotate through a transmission belt 301. Since each adjacent two driven wheel groups are connected by a transmission belt 301, the driven rollers 7 connected to each driven wheel group can rotate synchronously, thereby enhancing the transmission force of the conveyor line and improving the transmission efficiency during conveyor line transportation.

[0049] Since the transmission is carried out through two sets of transmission mechanisms 3, both ends of the pallet can move synchronously, thereby improving the stability during transportation.

[0050] Further, such as Figure 1 As shown, the upper end surface of the active roller 4 and the upper end surfaces of the plurality of driven rollers 7 can be located in the same plane, and the two active rollers 4 can also play the role of conveying the tray.

[0051] In actual applications, the active roller 4 and multiple driven rollers 7 are all provided with rubber coating, so that the friction between them and the pallet can be enhanced, the slippage between the pallet and the active roller 4 and the driven roller 7 can be reduced, and the stability of pallet transportation can be improved.

[0052] According to one embodiment of the present invention, the mounting frame 1 includes two bar frames, the transmission mechanism 3 corresponds to the bar frames one by one, and the transmission mechanism 3 is installed in the bar frames;

[0053] like Figure 4 and Figure 2 As shown, the bar frame includes a first side plate 101, a bottom plate 102, a second side plate 103 and a top plate 104 connected in sequence;

[0054] The first side plate 101 and the second side plate 103 are arranged in parallel.

[0055] According to one embodiment of the present invention, the top plate 104 is provided with a first paving hole for making way for the active roller 4 and a second paving hole 105 for making way for the driven roller 7. There are multiple second paving holes 105, and the second paving holes 105 correspond to the driven rollers 7 one by one.

[0056] By providing the top plate 104 , the transmission belt 301 can be protected so that dust or debris will not fall onto the driven pulley 304 and affect the transmission of the transmission belt 301 .

[0057] Preferably, the strip frame is a rectangular frame, and the two ends of the first side panel 101 are fixedly connected with support plates, the first side panel 101 and the bottom panel 102 are fixedly connected, the second side panel 103 and the top panel 104 are movably connected, the two ends of the top panel 104 are fixedly connected to the two support plates, the bottom panel 102 and the second side panel 103 are connected by multiple L-shaped sheet metal parts, and the two sides of the L-shaped sheet metal parts are screwed to the bottom panel 102 and the second side panel 103 by multiple bolts respectively. This design can facilitate the disassembly and assembly of the transmission mechanism 3 located in the strip frame.

[0058] According to one embodiment of the present invention, Figure 2 and Figure 3 As shown, the driving wheel group includes a driving pulley 302 fixedly connected to the driving roller 4;

[0059] The driven wheel assembly includes a driven shaft 303 and a driven pulley 304;

[0060] The driving mechanism 2 is used to drive the driving pulley 302 to rotate around its axis. The driving pulley 302 and one of the driven pulleys 304 close to the driving pulley 302 are driven by the transmission belt 301;

[0061] The driven roller 7 is fixedly connected to the driven pulley 304, and the driven roller 7 and the driven pulley 304 are respectively rotatably connected to the driven shaft 303 through a first bearing;

[0062] Both ends of the driven shaft 303 are respectively arranged on the first side plate 101 and the second side plate 103;

[0063] Every two adjacent driven pulleys 304 are connected by a transmission belt 301 , and the projections of every two adjacent transmission belts 301 on the horizontal plane do not overlap.

[0064] Each driven roller 7 , driven shaft 303 and driven pulley 304 is recorded as a group, and the axis of the driven roller 7 , the axis of the driven shaft 303 and the axis of the driven pulley 304 in each group are coincident.

[0065] Of course, in this embodiment, the driven wheel group can also be in other forms, wherein the two ends of the driven shaft 303 are rotatably connected to the first side plate 101 and the second side plate 103, and the driven pulley 304 is fixedly connected to the driven shaft 303, which can also drive the driven roller 7 to rotate. Its purpose does not deviate from the design concept of the present invention, and therefore, it should fall within the protection scope of the present invention.

[0066] According to one embodiment of the present invention, Figure 3 As shown, the driven wheel assembly further includes a blocking piece 305 fixedly connected to the driven pulley 304 , and the ends of each two adjacent transmission belts 301 close to each other are located on both sides of the blocking piece 305 .

[0067] The setting of the baffle 305 can prevent the ends of each two adjacent transmission belts 301 that are close to each other from interfering with each other when the transmission belts 301 move along the axial direction of the driven pulley 304, thereby ensuring the stability of transmission between the multiple driven rollers 7.

[0068] Furthermore, the driven pulley 304 includes a first wheel body and a second wheel body that are fixedly connected, and a baffle 305 is arranged between the first wheel body and the second wheel body. The baffle 305 is installed between the first wheel body and the second wheel body by interference fit with the driven shaft 303. Of course, the baffle 305 can also be screwed to the driven shaft 303 by being screwed to the driven shaft 303.

[0069] In this embodiment, the first wheel body and the second wheel body can also be symmetrically fixedly connected to both sides of the driven roller 7, so that the ends of each two adjacent transmission belts 301 that are close to each other can be separated by the driven roller 7, so that they will not collide with each other and interfere with the transmission. Its purpose does not deviate from the design concept of the present invention, and therefore, it should fall within the scope of protection of the present invention.

[0070] According to one embodiment of the present invention, Figure 2 As shown, the first side plate 101 and the second side plate 103 are both provided with a limiting groove 106, and both ends of the driven shaft 303 have a protrusion. The limiting groove 106 and the protrusion cooperate to limit the driven shaft 303 between the first side plate 101 and the second side plate 103;

[0071] Stoppers 306 are screwed onto both ends of the driven shaft 303 .

[0072] The connection portion of the driven shaft 303 is columnar and is used for mounting the driven pulley 304 and the driven roller 7 .

[0073] The driven shaft 303 is composed of a connecting portion and raised portions fixed at both ends of the connecting portion. The limiting groove 106 is composed of a first groove and a second groove that are connected. The size of the second groove is adapted to the size of the raised portion, which can limit the movement of the driven shaft 303 along the length direction of the bar frame. The size of the second groove is smaller than the radius of the connecting portion of the driven shaft 303, so that the driven shaft 303 can be limited between the first side plate 101 and the second side plate 103. The size of the first groove is larger than the size of the second groove, and the size of the first groove is larger than the size of the driven shaft 303, which is convenient for placing the raised portions at both ends of the driven shaft 303 in the second grooves in the first side plate 101 and the second side plate 103.

[0074] Furthermore, a screw hole is provided at one end of the protrusion away from the connecting portion, and a stopper 306 is screwed into the screw hole. The stopper 306 is preferably a T-bolt, and the radius of the T-bolt head is larger than the radius of the first groove, thereby further limiting the driven shaft 303 and improving stability.

[0075] According to one embodiment of the present invention, the drive mechanism 2 includes a drive motor 201, a universal coupling, and two first rotating shafts 202. The two first rotating shafts 202 are respectively fixedly connected to the two active rollers 4. One end of one of the rotating shafts 202 passes through one of the second side plates 103 and is fixedly connected to the output end of the drive motor 201. The other end of the rotating shaft 202 is connected to one end of the universal coupling. The other end of the universal coupling is fixedly connected to the other first rotating shaft 202.

[0076] The first rotating shaft 202 , the driving pulley 302 and the driving roller 4 correspond to each other one by one.

[0077] The driving motor 201 rotates, driving one of the first rotating shafts 202 fixedly connected to its output end to rotate, thereby driving one of the active rollers 4 to rotate, and synchronously driving the universal coupling to rotate, so that the other first rotating shaft 202 rotates synchronously.

[0078] Among them, two drive motors 201 and two first rotating shafts 202 can be set, and each drive motor 201 drives a first rotating shaft 202 to rotate, and then drives an active roller 4 to rotate. The dual drive makes the conveyor line more powerful and the transmission efficiency higher.

[0079] According to one embodiment of the present invention, a support assembly 5 for assisting in the installation of a plurality of driven wheel sets is provided in the bar frame.

[0080] The support assembly 5 can ensure that when installing multiple driven wheel groups and driven rollers 7, the driven shaft 303 will not tilt downward due to lack of support at one end by supporting the driven roller 7, which facilitates the subsequent installation of the driven pulley 304 and the transmission belt 301.

[0081] According to one embodiment of the present invention, the support assembly 5 includes a first strip plate 501, a limiting column, and a screw 504. The first strip plate 501 is provided with an arc groove 502. The driven roller 7 corresponds to the arc groove 502 one by one. The driven roller 7 is slidably connected to the arc groove 502 along its axis.

[0082] A side of the arc groove 502 away from the first side plate 101 is fixedly connected to a limiting block 503 , and the limiting block 503 cooperates with the limiting groove 106 provided on the first side plate 101 to limit the position of the driven roller 7 ;

[0083] One side of the first strip plate 501 is rotatably connected to a screw rod 504. The first strip plate 501 is slidably connected to a limiting post. The screw rod 504 is threadedly connected to the second side plate 103. The limiting post is fixedly connected to the first side plate 101. The length direction of the screw rod 504, the axis direction of the driven roller 7, and the length direction of the limiting post are all the same. The length direction of the first strip plate 501 is the same as the length direction of the strip frame and the length direction of the mounting bracket 1.

[0084] After the active roller 4 and the active pulley 302 are connected and the driven pulley 304, the driven roller 7 and the driven shaft 303 are assembled, one end of the transmission belt 301 is put on the active pulley 302 and the other end is put on the driven pulley 304, and then one end of the corresponding driven shaft 303 is installed on the first side plate 101. The bottom of the corresponding driven roller 7 is located in the corresponding arc groove 502 to support the driven roller 7. The driven wheel assembly and the transmission belt 301 are installed in sequence so that the installed transmission belt 301 will not fall off due to the lack of support on the other end of the driven shaft 303, which will cause the driven roller 7 and the driven pulley 304 to tilt.

[0085] The process of installing the transmission mechanism 3 into the bar frame is as follows: first, the first side plate 101 and the bottom plate 102 and the two support plates are fixedly connected, and one end of the multiple driven shafts 303 in the transmission mechanism 3 is sequentially inserted into the corresponding limit grooves 106. At this time, the driven roller 7 on each driven shaft 303 can be supported by the corresponding arc groove 502, and then the second side plate 103 and the bottom plate 102 are connected, and the other ends of the multiple driven shafts 303 are correspondingly inserted into the multiple limit grooves 106 opened on the second side plate 103, and then the stop block 306 is installed on the driven shaft 303, and the screw 504 in the support assembly 5 is turned, so that the first bar plate 501 is moved away from the bottom of the driven roller 7 under the dual action of the screw 504 and the limit column, so that it does not interfere with the driven roller 7 when it rotates.

[0086] It should be noted that the axis of the active roller 4 coincides with the axis of the active pulley 302, the axis of the driven pulley 304 in each driven pulley group, the axis of the driven shaft 303 and the axis of the corresponding driven roller 7 coincide, the axes of the active roller 4 and the driven roller 7 are parallel, and the axial direction of the driven roller 7 is perpendicular to the length direction of the mounting frame 1.

[0087] According to one embodiment of the present invention, the two top plates 104 are fixedly connected to a stop bar on one side away from each other, and the two stop bars cooperate to guide the tray to move only along the length direction of the bar frame;

[0088] The two baffles can ensure that the movement direction of the tray does not deviate.

[0089] The mounting frame 1 includes a support base, on which two bar frames are symmetrically mounted. The support base includes multiple legs, each of which is fixedly connected to the bottom of the bar frame. A crossbeam is installed between each pair of adjacent legs to increase the strength of the conveyor line and make the conveyor line more stable, preventing the pallets from shaking during transportation on the conveyor line.

[0090] Furthermore, a stopper 6 can be provided at one end of the support seat. The setting of the stopper 6 can stop the pallet when it is needed. When it is not needed to stop the pallet, the stopper 6 as a whole is lower than the upper end surface of the multiple driven rollers 7, which does not affect the normal transportation of the pallet. The specific structure of the stopper 6 is the existing technology and will not be elaborated here.

[0091] In the description of this utility model, it should be noted that the terms "upper" and "lower" and other terms indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0092] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or a connection between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0093] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A conveyor line, characterized in that: It comprises a driving mechanism (2), a mounting frame (1) and two transmission mechanisms (3); The two transmission mechanisms (3) are respectively mounted on both sides of the mounting frame (1), and the transmission mechanism (3) comprises a transmission belt (301), a driving wheel group, and a plurality of driven wheel groups; A plurality of driven wheel assemblies are arranged at intervals along the length direction of the mounting frame (1); one of the driven wheel assemblies close to the driving wheel assemblies is connected to the driving wheel assemblies via a transmission belt (301); and each two adjacent driven wheel assemblies are connected via a transmission belt (301); The two driving wheel groups are connected to the driving mechanism (2), and the driving mechanism (2) drives the two driving wheel groups to rotate around their respective axes; One side of the driving wheel group is connected to a driving roller (4), and one side of each driven wheel group is connected to a driven roller (7). The upper end surfaces of the multiple driven rollers (7) are located in the same plane, and the multiple driven rollers (7) cooperate to drive the pallet to move.

2. A conveyor line according to claim 1, characterized in that, The mounting frame (1) comprises two bar frames, the transmission mechanism (3) corresponds to the bar frames one by one, and the transmission mechanism (3) is installed in the bar frames; The bar frame comprises a first side plate (101), a bottom plate (102), a second side plate (103) and a top plate (104) which are connected in sequence; The first side plate (101) and the second side plate (103) are arranged in parallel.

3. A conveyor line according to claim 2, characterized in that, The driving wheel group includes a driving pulley (302) fixedly connected to the driving roller (4); The driven wheel assembly includes a driven shaft (303) and a driven pulley (304); The driving mechanism (2) is used to drive the driving pulley (302) to rotate around its axis, and the driving pulley (302) and one of the driven pulleys (304) close to the driving pulley (302) are driven by the transmission belt (301); The driven roller (7) is fixedly connected to the driven pulley (304), and the driven roller (7) and the driven pulley (304) are respectively rotatably connected to the driven shaft (303) via a first bearing; The two ends of the driven shaft (303) are respectively arranged on the first side plate (101) and the second side plate (103); Every two adjacent driven pulleys (304) are connected by a transmission belt (301), and the projections of every two adjacent transmission belts (301) on a horizontal plane do not overlap.

4. A conveyor line according to claim 3, characterized in that, The driven wheel assembly further comprises a baffle (305) fixedly connected to the driven pulley (304), and the mutually adjacent ends of each of the two adjacent transmission belts (301) are respectively located on both sides of the baffle (305).

5. A conveyor line according to claim 3, characterized in that: The first side plate (101) and the second side plate (103) are both provided with a limiting groove (106), and both ends of the driven shaft (303) have a protrusion, and the limiting groove (106) and the protrusion cooperate to limit the driven shaft (303) between the first side plate (101) and the second side plate (103); Stoppers (306) are respectively screwed on both ends of the driven shaft (303).

6. A conveyor line according to claim 3, characterized in that: The driving mechanism (2) comprises a driving motor (201), a universal coupling and two first rotating shafts (202), the two first rotating shafts (202) being fixedly connected to the two active rollers (4) respectively, one end of one of the rotating shafts (202) passing through one of the second side plates (103) and being fixedly connected to the output end of the driving motor (201), the other end of the rotating shaft (202) being connected to one end of the universal coupling, and the other end of the universal coupling being fixedly connected to the other first rotating shaft (202); The first rotating shaft (202), the driving pulley (302) and the driving roller (4) correspond to each other one by one.

7. A conveyor line according to claim 5, characterized in that: A support assembly (5) for assisting in the installation of a plurality of driven wheel sets is provided in the strip frame.

8. A conveyor line according to claim 7, characterized in that: The support assembly (5) comprises a first strip plate (501), a limiting column and a screw (504); an arc groove (502) is provided on the first strip plate (501); the driven roller (7) corresponds to the arc groove (502) in a one-to-one manner; the driven roller (7) is slidably connected in the arc groove (502) along its axial direction; A limiting block (503) is fixedly connected to a side of the arc groove (502) away from the first side plate (101), and the limiting block (503) cooperates with the limiting groove (106) provided on the first side plate (101) to limit the position of the driven roller (7); One side of the first strip plate (501) is rotatably connected to the screw rod (504), the first strip plate (501) is slidably connected to the limiting column, the screw rod (504) is screwed to the second side plate (103), the limiting column is fixedly connected to the first side plate (101), and the length direction of the screw rod (504), the axial direction of the driven roller (7) and the length direction of the limiting column are all the same.

9. A conveyor line according to claim 2, characterized in that: The top plate (104) is provided with a first paving hole for paving the active roller (4) and a second paving hole (105) for paving the driven roller (7).

10. A conveyor line according to claim 2, characterized in that: The two top plates (104) are fixedly connected to a stop bar on one side away from each other, and the two stop bars cooperate to guide the tray to move only along the length direction of the bar frame; The mounting frame (1) comprises a support base, and the two strip frames are symmetrically mounted on the support base.

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