A close-packed acceleration conveyor

Abstract

The application discloses a close-packed speed pursuit conveying mechanism and belongs to the technical field of conveying mechanisms. The mechanism comprises a primary adjustment mechanism for feeding and initially adjusting the interval of boxes, a conveying mechanism arranged on the primary adjustment mechanism for conveying the boxes, and a speed pursuit mechanism arranged on the conveying mechanism for adjusting the boxes into equal intervals. The primary adjustment mechanism is arranged to first comb and initially adjust the interval of the close-packed incoming boxes through limiting columns and material stirring distance setting, thereby laying a good foundation for subsequent fine adjustment. The speed pursuit mechanism adopts a unique chain plate type interval module. The boxes are accelerated through the friction drive of the speed pursuit rollers in the module until the boxes contact the front blocking plate and move synchronously with the module. Since multiple interval modules are fixed at equal intervals on the chain, the boxes conveyed by the interval modules are finally forced to be separated into completely equal intervals, which is more reliable than single adjustment mode.

Description

Technical Field

[0001] This invention relates to the field of conveying mechanism technology, and in particular to a closely spaced, high-speed conveying mechanism. Background Technology

[0002] In the fields of modern logistics, packaging and production line material handling, efficient and orderly continuous transport of regular items such as packaging boxes and containers is a basic requirement. Especially before automated sorting, palletizing, assembly and subsequent packaging processes, it is usually necessary to adjust the spacing of continuously input boxes to transform them from a disordered or closely arranged state into a queue with stable and equal intervals to meet the process requirements of precise positioning, synchronous operation or group processing.

[0003] Currently, most common conveying and spacing adjustment solutions employ a segmented design. First, initial conveying and buffering are achieved using conveyor belts, roller conveyors, or similar devices. Then, independent spacing adjustment devices, such as variable-pitch star wheels, synchronous belts with pushers, or servo-driven acceleration belts, are used to further accelerate or decelerate the boxes, creating or maintaining a specific spacing. These solutions have some shortcomings.

[0004] Initial and fine adjustments are often completed by multiple independent devices connected in series, resulting in a lengthy mechanism, complex control system, and large footprint. When adjusting the spacing using simple acceleration or obstruction methods, there is a risk of slippage and uneven spacing for boxes with different weights or bottom friction coefficients. The adjustment accuracy and stability are greatly affected by the material characteristics. Some mechanisms have abrupt actions when obstructing or moving the boxes, such as vertical downward obstruction or moving, which may cause impact or scratches to the top surface or sides of the box, making them unsuitable for fragile packaging. If the box spacing is not uniform in the initial adjustment stage, it will place a heavy burden on the subsequent fine adjustment mechanism, which may lead to fine adjustment failure or the need for a more complex correction mechanism.

[0005] Therefore, the industry urgently needs an integrated conveying solution that can organically integrate functions such as continuous box feeding, preliminary spacing pretreatment, efficient and impact-free transfer, and high-precision equidistant speed-tracking conveying. It should have the characteristics of compact structure, coordinated operation, box-friendly design, high adjustment accuracy, and wide speed range adaptability to achieve efficient, stable, and flexible operation of the production line. Summary of the Invention

[0006] To address the aforementioned technical problems, this invention discloses a closely spaced speed-tracking conveying mechanism that organically integrates functions such as continuous box feeding, preliminary spacing pre-processing, efficient and impact-free transfer, and high-precision equidistant speed-tracking conveying. This mechanism is characterized by its compact structure, coordinated movements, box-friendly design, high adjustment precision, and wide adaptability to various speed ranges. The technical solution adopted by this invention is as follows: A closely spaced speed-tracking conveying mechanism includes a preliminary adjustment mechanism for feeding boxes and initially adjusting the spacing between them. The preliminary adjustment mechanism is equipped with a conveying mechanism for transporting the boxes, and the conveying mechanism is equipped with a speed-tracking mechanism for adjusting the boxes to equidistant distances. The speed-tracking mechanism includes a speed-tracking frame, on which a speed-tracking wheel is rotatably mounted. A chain module is wound around the speed-tracking wheel. The chain module includes multiple chain plates, which are rotatably connected to each other via connecting shafts. Three spacing modules are equidistantly arranged outside the chain module.

[0007] The initial adjustment mechanism includes an entry motor fixedly installed on the feeding frame, two feeding sprockets rotatably installed on the feeding frame, and feeding chains wound around the two feeding sprockets. The entry motor drives the feeding sprockets to rotate through a feeding transmission belt. Two feeding rods are fixedly installed at equal intervals on the feeding chain, and feeding rollers are rotatably installed on the feeding rods.

[0008] Furthermore, the initial adjustment mechanism also includes a blocking frame rotatably mounted on the feeding frame, a blocking wheel fixedly mounted on the blocking frame, a blocking roller rotatably mounted on the blocking frame, an outer gear fixedly mounted on a feeding sprocket near the blocking frame, a conversion gear rotatably mounted on the feeding frame, a conversion wheel fixedly mounted on the conversion gear, the conversion gear meshing with the outer gear, and an outer transmission belt wound around the conversion wheel and the blocking wheel.

[0009] Furthermore, the initial adjustment mechanism includes multiple limiting posts fixedly installed on the feeding frame, multiple feeding rollers rotatably installed on the feeding frame, and multiple motors for driving the feeding rollers are provided on the feeding frame.

[0010] Furthermore, a rotating frame is rotatably mounted on the feeding frame, an adjusting electric cylinder is rotatably mounted on the feeding frame, the output end of the adjusting electric cylinder is rotatably mounted to the rotating frame, and an inclined sliding roller is rotatably mounted on the rotating frame.

[0011] The motor drives the feeding sprocket and outer gear to rotate via the feeding transmission belt. The feeding sprocket drives the feeding chain to rotate, which in turn drives the feeding rod and feeding roller to rotate. The outer gear drives the conversion gear and conversion wheel to rotate. The conversion wheel drives the blocking wheel, blocking frame, and blocking roller to rotate via the outer transmission belt. The feeding sprocket and blocking frame rotate in opposite directions. The motor on the feeding frame drives the feeding roller to rotate, continuously placing boxes onto the feeding roller. The limiting pins provide initial positioning for the boxes placed on the feeding roller, and the feeding roller transports the boxes toward the inclined slide roller.

[0012] When the box reaches below the feeding chain, it is propelled by the feeding rod and feeding roller, pushing it onto the conveyor roller on the transfer frame. When the feeding roller contacts the box below the feeding chain, the blocking roller will block the next arriving box. After the feeding rod and feeding roller pass the inlet motor, the blocking roller and blocking frame continue to rotate, and the blocking roller reaches a position higher than the top surface of the box. The box that was originally blocked by the blocking roller reaches the inlet motor. At this time, the next feeding roller and feeding rod have not yet arrived. When the next feeding rod and feeding roller arrive at the inlet motor, the box will not be below the feeding roller, and the feeding roller will not hit the top surface of the box from top to bottom.

[0013] When the two feeding rollers reach the blocking frame, the blocking rollers will block the subsequent boxes. After the feeding rollers pass the inlet motor, the blocking rollers will stop blocking the subsequent boxes. Then, after the boxes are conveyed to the bottom of the inlet motor, the next feeding roller will push the boxes to prevent the feeding rollers from squeezing the boxes downwards. The blocking rollers rotate from bottom to top to block the boxes and prevent them from squeezing the boxes downwards.

[0014] Adjusting the extension and retraction of the electric cylinder drives the rotating frame to rotate relative to the feeding frame, which can change the rotation angle of the rotating frame relative to the feeding frame, making it easier for the box to move onto the conveyor roller.

[0015] Furthermore, the spacing module includes a lower rotating wheel rotatably mounted on a connecting shaft, a friction tire fixedly mounted on the lower rotating wheel, a bracket fixedly mounted on the rearmost chain plate, a speed-tracking roller rotatably mounted on the bracket, an upper friction wheel fixedly mounted on the speed-tracking roller, a middle friction wheel rotatably mounted on the bracket, the friction tire and the middle friction wheel forming a friction drive, the middle friction wheel and the upper friction wheel forming a friction drive, a driven frame fixedly mounted on multiple chain plates adjacent to the chain plate with the bracket mounted in the forward direction, a driven roller rotatably mounted on the driven frame, and a blocking plate fixedly mounted on the chain plate adjacent to the outermost chain plate with the driven frame mounted.

[0016] Furthermore, the speed-tracking mechanism also includes a fixed block fixedly installed on the speed-tracking frame, the fixed block forming a friction drive with the friction tire, and a motor for driving the speed-tracking wheel to rotate is fixedly installed on the speed-tracking frame.

[0017] The motor on the speed-tracking frame drives the speed-tracking wheel to rotate, which in turn drives all the chain plates to move. The chain plates drive the three spacing modules to move together. When the spacing modules move, the lower rotating wheel, under the close contact and friction with the fixed block, drives the lower rotating wheel and the friction tire to rotate. The friction tire drives the middle friction wheel to rotate, and the middle friction wheel drives the upper friction wheel and the speed-tracking roller to rotate.

[0018] When the box is conveyed by the conveyor roller to the tracking roller, the tracking roller rotates and drives the box to accelerate as the chain plate moves with the spacing module. Only the tracking roller provides power to the box, and the driven roller does not rotate on its own. After the tracking roller drives the box away from the tracking roller, the box contacts the blocking plate. At this time, the box moves together with the spacing module. Since the distance between the three spacing modules is equal, the distance between the boxes conveyed by the spacing modules is exactly equal. Then, the boxes are conveyed to the output conveyor belt through the spacing modules.

[0019] After being conveyed by the initial adjustment mechanism, the spacing between the boxes arriving at the speed tracking roller has been initially adjusted, but it is not completely equidistant, providing a basis for the subsequent spacing module to make the boxes completely equidistant.

[0020] Furthermore, the conveying mechanism includes a transfer frame, on which multiple conveying rollers are rotatably mounted. A conveying motor is fixedly mounted on the transfer frame, and conveying wheels are fixedly mounted on the conveying rollers. A transverse transmission belt is wound around every two adjacent conveying wheels. The conveying motor drives the conveying wheels above the conveying motor to rotate through the input transmission belt. Multiple limiting columns are fixedly mounted on the transfer frame, and a lower electric cylinder is rotatably mounted on the transfer frame. An adjusting frame is rotatably mounted on the transfer frame, and the adjusting frame is rotatably mounted to the output end of the lower electric cylinder. Multiple rotating rollers are rotatably mounted on the adjusting frame.

[0021] Furthermore, the conveying mechanism also includes an output frame, on which an output motor is fixedly mounted, and two output shafts are rotatably mounted. An output conveyor belt is wound around the two output shafts, and the output motor drives the output shafts close to the output motor to rotate via a drive belt.

[0022] When the box reaches the conveyor roller, it is positioned by the limit column. The conveyor motor drives the conveyor wheel and conveyor roller above the conveyor motor to rotate through the input transmission belt. The horizontal transmission belt makes all the conveyor wheels and conveyor rollers rotate together. The conveyor roller transports the box to the tracking roller for equal distance processing.

[0023] The output motor drives the output shaft near the output motor to rotate via a drive belt, which in turn drives the output conveyor belt to move, and the output conveyor belt carries the box away.

[0024] The beneficial effects of this invention compared with the prior art are: (1) The initial adjustment mechanism of this invention cooperates with the material feeding sprocket and the reverse rotating blocking frame, so that the material feeding roller pushes the box forward only in the horizontal direction, while the blocking roller blocks the subsequent box from bottom to top, avoiding the risk of the material feeding roller pressing down vertically and hitting the upper surface of the box or the blocking roller pressing the box hard, realizing friendly and impact-free operation of the box, and at the same time ensuring the precise timing of the current box being moved away and the blocking roller being raised synchronously, so that the subsequent box can accurately enter the waiting position, improving the smoothness and reliability of the conveyor line; (2) The initial adjustment mechanism of this invention performs the first sorting and preliminary spacing pre-adjustment of dense incoming materials through the limit column, material feeding distance and other methods, laying a good foundation for subsequent fine adjustment. The speed-tracking mechanism adopts a unique chain plate type spacing module. The box is accelerated by the friction drive of the speed-tracking roller in the module until it contacts the front blocking plate and moves synchronously with the module. Since multiple spacing modules are fixed at equal intervals on the chain, the boxes conveyed by them are eventually forced to be separated into completely equal spacings, which is more reliable than a single adjustment method. (3) The spacing module set in this invention does not rely on the slip difference between the box and the conveyor belt to adjust the spacing. Instead, the speed-tracking roller driven by the fixed block in the spacing module actively provides acceleration power to the box. After the speed-tracking is completed, the box immediately contacts the mechanical blocking plate on the module, so that the final box spacing is not affected by the physical characteristics of the box, slippage and other factors. It is particularly suitable for subsequent process links with strict requirements for spacing consistency. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0026] Figure 2 This is a schematic diagram of the initial adjustment mechanism structure of the present invention. Figure 1 .

[0027] Figure 3 This is a schematic diagram of the initial adjustment mechanism structure of the present invention. Figure 2 .

[0028] Figure 4 This is a schematic diagram of the speed-tracking mechanism of the present invention. Figure 1 .

[0029] Figure 5 This is a schematic diagram of the speed-tracking mechanism of the present invention. Figure 2 .

[0030] Figure 6 for Figure 5 A magnified view of a portion of point A in the middle.

[0031] Figure 7 This is a schematic diagram of the conveying mechanism structure of the present invention. Figure 1 .

[0032] Figure 8This is a schematic diagram of the conveying mechanism structure of the present invention. Figure 2 .

[0033] Figure 9 for Figure 8 A magnified view of a portion of point B in the middle.

[0034] Figure 10 for Figure 8 A magnified view of a portion of point C.

[0035] Reference numerals: 101-Feeding frame; 102-Input motor; 103-Pushing drive belt; 104-Pushing sprocket; 105-Pushing chain; 106-Pushing rod; 107-Pushing roller; 108-Blocking frame; 109-Blocking roller; 110-Outer gear; 111-Converting gear; 112-Converting wheel; 113-Outer drive belt; 114-Blocking wheel; 115-Feeding roller; 116-Limiting post; 117-Rotating frame; 118-Adjusting electric cylinder; 119-Inclined sliding roller; 201-Speed ​​tracking frame; 202-Speed ​​tracking wheel; 203-Chain plate; 204-Connecting shaft; 205-Lower rotating wheel; 206-Friction tire; 207-Fixing block; 208-Bracket; 209-Speed ​​tracking roller; 210-Middle friction wheel; 211-Upper friction wheel; 212-Driven frame; 213-Driven roller; 214-Blocking plate; 301-Transfer frame; 302-Conveyor motor; 303-Input transmission belt; 304-Conveyor roller; 305-Horizontal transmission belt; 306-Conveyor wheel; 307-Limiting column; 308-Adjusting rotating frame; 309-Lower electric cylinder; 310-Rotating roller; 311-Output frame; 312-Output motor; 313-Drive belt; 314-Output shaft; 315-Output conveyor belt; 4-Box. Detailed Implementation

[0036] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0037] Example: Reference Figures 1-10 A closely spaced tracking conveyor mechanism includes an initial adjustment mechanism for feeding boxes 4 in and initially adjusting the spacing between boxes 4, a conveying mechanism for conveying boxes 4 on the initial adjustment mechanism, and a tracking mechanism for adjusting boxes 4 to be at equal distances on the conveying mechanism. The speed-tracking mechanism includes a speed-tracking frame 201, on which a speed-tracking wheel 202 is rotatably mounted. A chain module is wound around the speed-tracking wheel 202. The chain module includes multiple chain plates 203. Adjacent chain plates 203 are rotatably connected by a connecting shaft 204. Three spacing modules are equidistantly arranged outside the chain module.

[0038] like Figure 2 , Figure 3As shown, the initial adjustment mechanism includes an input motor 102 fixedly installed on the feeding frame 101. Two feeding sprockets 104 are rotatably installed on the feeding frame 101. Feeding chains 105 are wound around the two feeding sprockets 104. The input motor 102 drives the feeding sprockets 104 to rotate through the feeding transmission belt 103. Two feeding rods 106 are fixedly installed at equal intervals on the feeding chain 105. Feeding rollers 107 are rotatably installed on the feeding rods 106.

[0039] like Figure 2 , Figure 3 As shown, the initial adjustment mechanism also includes a blocking frame 108 rotatably mounted on the feeding frame 101. A blocking wheel 114 is fixedly mounted on the blocking frame 108. A blocking roller 109 is rotatably mounted on the blocking frame 108. An outer gear 110 is fixedly mounted on the feeding sprocket 104 near the blocking frame 108. A conversion gear 111 is rotatably mounted on the feeding frame 101. A conversion wheel 112 is fixedly mounted on the conversion gear 111. The conversion gear 111 meshes with the outer gear 110. An outer transmission belt 113 is wound around the conversion wheel 112 and the blocking wheel 114.

[0040] like Figure 2 , Figure 3 As shown, the initial adjustment mechanism also includes multiple limiting posts 116 fixedly installed on the feeding frame 101, multiple feeding rollers 115 rotatably installed on the feeding frame 101, and multiple motors for driving the feeding rollers 115 are provided on the feeding frame 101.

[0041] like Figure 2 , Figure 3 As shown, a rotating frame 117 is rotatably mounted on the feeding frame 101, and an adjusting electric cylinder 118 is rotatably mounted on the feeding frame 101. The output end of the adjusting electric cylinder 118 is rotatably mounted to the rotating frame 117, and an inclined sliding roller 119 is rotatably mounted on the rotating frame 117.

[0042] The motor 102 drives the feeding sprocket 104 and the outer gear 110 to rotate via the feeding transmission belt 103. The feeding sprocket 104 drives the feeding chain 105 to rotate, and the feeding chain 105 drives the feeding rod 106 and the feeding roller 107 to rotate. The outer gear 110 drives the conversion gear 111 and the conversion wheel 112 to rotate. The conversion wheel 112 drives the blocking wheel 114, the blocking frame 108 and the blocking roller 109 to rotate via the outer transmission belt 113. The feeding sprocket 104 and the blocking frame 108 rotate in opposite directions. The motor on the feeding frame 101 drives the feeding roller 115 to rotate, continuously placing the box 4 onto the feeding roller 115. The limiting post 116 provides initial positioning for the box 4 placed on the feeding roller 115. The feeding roller 115 then transports the box 4 toward the inclined slide roller 119.

[0043] When box 4 reaches below the feeding chain 105, it is pushed by feeding rod 106 and feeding roller 107 to move onto the conveying roller 304 on the transfer frame 301. When feeding roller 107 contacts box 4 below the feeding chain 105, blocking roller 109 will block the next arriving box 4. After feeding rod 106 and feeding roller 107 pass the entry motor 102, the blocking roller 109 and blocking frame 108 continue to rotate. The blocking roller 109 reaches a position higher than the upper surface of box 4. Box 4, which was originally blocked by blocking roller 109, reaches the side of entry motor 102. At this time, the next feeding roller 107 and feeding rod 106 have not yet arrived. When the next feeding rod 106 and feeding roller 107 arrive at entry motor 102, box 4 will not be below feeding roller 107, and feeding roller 107 will not hit the upper surface of box 4 from top to bottom.

[0044] When the two feeding rollers 107 reach the side of the blocking frame 108, the blocking roller 109 blocks the subsequent box 4. After the feeding roller 107 passes the entry motor 102, the blocking roller 109 will no longer block the subsequent box 4. Then, after the box 4 is conveyed to the bottom of the entry motor 102, the next feeding roller 107 will push the box 4 to avoid the feeding roller 107 pressing the box 4 downward. The blocking roller 109 rotates from bottom to top to block the box 4 and prevent the blocking roller 109 from pressing the box 4 downward.

[0045] The extension and retraction of the electric cylinder 118 drives the rotating frame 117 to rotate relative to the feeding frame 101, which can change the rotation angle of the rotating frame 117 relative to the feeding frame 101, making it easier for the box 4 to move onto the conveyor roller 304.

[0046] like Figures 4-6 As shown, the spacing module includes a lower rotating wheel 205 rotatably mounted on a connecting shaft 204, a friction tire 206 fixedly mounted on the lower rotating wheel 205, a bracket 208 fixedly mounted on the rearmost chain plate 203, a speed-tracking roller 209 rotatably mounted on the bracket 208, an upper friction wheel 211 fixedly mounted on the speed-tracking roller 209, a middle friction wheel 210 rotatably mounted on the bracket 208, the friction tire 206 and the middle friction wheel 210 forming a friction drive, the middle friction wheel 210 and the upper friction wheel 211 forming a friction drive, a driven frame 212 fixedly mounted on multiple chain plates 203 adjacent to the chain plate 203 with the bracket 208 mounted in the forward direction, a driven roller 213 rotatably mounted on the driven frame 212, and a blocking plate 214 fixedly mounted on the chain plate 203 adjacent to the outermost chain plate 203 with the driven frame 212 mounted.

[0047] like Figures 4-6As shown, the speed-chasing mechanism also includes a fixed block 207 fixedly installed on the speed-chasing frame 201. The fixed block 207 and the friction tire 206 form a friction transmission. A motor for driving the speed-chasing wheel 202 to rotate is fixedly installed on the speed-chasing frame 201.

[0048] The motor on the speed-tracking frame 201 drives the speed-tracking wheel 202 to rotate. The speed-tracking wheel 202 drives all the chain plates 203 to move. The chain plates 203 drive the three spacing modules to move together. When the spacing modules move, the lower rotating wheel 205, under the close contact and friction with the fixed block 207, drives the lower rotating wheel 205 and the friction tire 206 to rotate. The friction tire 206 drives the middle friction wheel 210 to rotate. The middle friction wheel 210 drives the upper friction wheel 211 and the speed-tracking roller 209 to rotate.

[0049] When box 4 is conveyed to speed roller 209 by conveyor roller 304, and the speed roller 209 rotates while the chain plate 203 moves with the spacing module, it drives box 4 to accelerate. Only speed roller 209 provides power to box 4, and driven roller 213 does not rotate on its own. After speed roller 209 drives box 4 away from above speed roller 209, box 4 contacts the blocking plate 214. At this time, box 4 moves together with the spacing module. Since the distance between the three spacing modules is equal, the distance between boxes 4 conveyed by the spacing module is completely equal. Then, box 4 is conveyed to output conveyor belt 315 through the spacing module.

[0050] After being conveyed by the initial adjustment mechanism, the spacing between boxes 4 on the speed tracking roller 209 has been initially adjusted, but is not completely equidistant, providing a basis for the subsequent spacing module to make the boxes 4 completely equidistant.

[0051] like Figures 8-10 As shown, the conveying mechanism includes a transfer frame 301, on which multiple conveying rollers 304 are rotatably mounted. A conveying motor 302 is fixedly mounted on the transfer frame 301. Conveying wheels 306 are fixedly mounted on the conveying rollers 304. A transverse transmission belt 305 is wound around every two adjacent conveying wheels 306. The conveying motor 302 drives the conveying wheels 306 above the conveying motor 302 to rotate through the input transmission belt 303. Multiple limiting columns 307 are fixedly mounted on the transfer frame 301. A lower electric cylinder 309 is rotatably mounted on the transfer frame 301. An adjusting frame 308 is rotatably mounted on the transfer frame 301. The adjusting frame 308 is rotatably mounted to the output end of the lower electric cylinder 309. Multiple rotating rollers 310 are rotatably mounted on the adjusting frame 308.

[0052] like Figures 8-10As shown, the conveying mechanism also includes an output frame 311, on which an output motor 312 is fixedly mounted. Two output shafts 314 are rotatably mounted on the output frame 311. An output conveyor belt 315 is wound around the two output shafts 314. The output motor 312 drives the output shafts 314 close to the output motor 312 to rotate through the drive belt 313.

[0053] When box 4 reaches the conveyor roller 304, it will be positioned by the limit column 307. The conveyor motor 302 drives the conveyor wheel 306 and conveyor roller 304 above the conveyor motor 302 to rotate through the input transmission belt 303. The horizontal transmission belt 305 makes all the conveyor wheels 306 and conveyor roller 304 rotate together. The conveyor roller 304 transports box 4 to the speed-tracking roller 209 for equidistant processing.

[0054] The output motor 312 drives the output shaft 314, which is close to the output motor 312, to rotate via the drive belt 313, thereby driving the output conveyor belt 315 to move, and the output conveyor belt 315 drives the box 4 away.

[0055] The working principle of the stainless steel angle steel hardness testing device disclosed in this invention is as follows: the input motor 102 drives the feeding sprocket 104 and the outer gear 110 to rotate through the feeding transmission belt 103. The feeding sprocket 104 drives the feeding chain 105 to rotate. The feeding chain 105 drives the feeding rod 106 and the feeding roller 107 to rotate. The outer gear 110 drives the conversion gear 111 and the conversion wheel 112 to rotate. The conversion wheel 112 drives the blocking wheel 114, the blocking frame 108 and the blocking roller 109 to rotate through the outer transmission belt 113. The feeding sprocket 104 and the blocking frame 108 rotate in opposite directions. The motor on the feeding frame 101 drives the feeding roller 115 to rotate, continuously placing the box 4 onto the feeding roller 115. The limiting post 116 performs preliminary positioning of the box 4 placed on the feeding roller 115. The feeding roller 115 conveys the box 4 toward the inclined slide roller 119.

[0056] When box 4 reaches below the feeding chain 105, it is pushed by feeding rod 106 and feeding roller 107 to move onto the conveying roller 304 on the transfer frame 301. When feeding roller 107 contacts box 4 below the feeding chain 105, blocking roller 109 will block the next arriving box 4. After feeding rod 106 and feeding roller 107 pass the entry motor 102, the blocking roller 109 and blocking frame 108 continue to rotate. The blocking roller 109 reaches a position higher than the upper surface of box 4. Box 4, which was originally blocked by blocking roller 109, reaches the side of entry motor 102. At this time, the next feeding roller 107 and feeding rod 106 have not yet arrived. When the next feeding rod 106 and feeding roller 107 arrive at entry motor 102, box 4 will not be below feeding roller 107, and feeding roller 107 will not hit the upper surface of box 4 from top to bottom.

[0057] When box 4 reaches the conveyor roller 304, it will be positioned by the limit column 307. The conveyor motor 302 drives the conveyor wheel 306 and conveyor roller 304 above the conveyor motor 302 to rotate through the input transmission belt 303. The horizontal transmission belt 305 makes all the conveyor wheels 306 and conveyor roller 304 rotate together. The conveyor roller 304 transports box 4 to the speed-tracking roller 209 for equidistant processing.

[0058] The motor on the speed-tracking frame 201 drives the speed-tracking wheel 202 to rotate. The speed-tracking wheel 202 drives all the chain plates 203 to move. The chain plates 203 drive the three spacing modules to move together. When the spacing modules move, the lower rotating wheel 205, under the close contact and friction with the fixed block 207, drives the lower rotating wheel 205 and the friction tire 206 to rotate. The friction tire 206 drives the middle friction wheel 210 to rotate. The middle friction wheel 210 drives the upper friction wheel 211 and the speed-tracking roller 209 to rotate.

[0059] When box 4 is conveyed to speed roller 209 by conveyor roller 304, and the speed roller 209 rotates while the chain plate 203 moves with the spacing module, it drives box 4 to accelerate. Only speed roller 209 provides power to box 4, and driven roller 213 does not rotate on its own. After speed roller 209 drives box 4 away from above speed roller 209, box 4 contacts the blocking plate 214. At this time, box 4 moves together with the spacing module. Since the distance between the three spacing modules is equal, the distance between boxes 4 conveyed by the spacing module is completely equal. Then, box 4 is conveyed to output conveyor belt 315 through the spacing module.

[0060] The output motor 312 drives the output shaft 314, which is close to the output motor 312, to rotate via the drive belt 313, thereby driving the output conveyor belt 315 to move, and the output conveyor belt 315 drives the box 4 away.

[0061] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the present invention based on the technical solution and inventive concept of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A close-packed, high-speed conveying mechanism, comprising an initial adjustment mechanism for feeding boxes (4) in and initially adjusting the spacing between boxes (4), characterized in that: The initial adjustment mechanism is provided with a conveying mechanism for conveying the box (4), and the conveying mechanism is provided with a speed-tracking mechanism for adjusting the box (4) to an equal distance. The speed-tracking mechanism includes a speed-tracking frame (201), on which a speed-tracking wheel (202) is rotatably mounted. A chain module is wound around the speed-tracking wheel (202). The chain module includes multiple chain plates (203). Adjacent chain plates (203) are rotatably connected by a connecting shaft (204). Three spacing modules are equidistantly arranged outside the chain module.

2. The closely spaced, high-speed conveying mechanism according to claim 1, characterized in that: The initial adjustment mechanism includes an input motor (102) fixedly installed on the feeding frame (101). Two feeding sprockets (104) are rotatably installed on the feeding frame (101). Feeding chains (105) are wound around the two feeding sprockets (104). The input motor (102) drives the feeding sprockets (104) to rotate through the feeding transmission belt (103). Two feeding rods (106) are fixedly installed at equal intervals on the feeding chain (105). Feeding rollers (107) are rotatably installed on the feeding rods (106).

3. The closely spaced, high-speed conveying mechanism according to claim 2, characterized in that: The initial adjustment mechanism also includes a blocking frame (108) rotatably mounted on the feeding frame (101), a blocking wheel (114) fixedly mounted on the blocking frame (108), a blocking roller (109) rotatably mounted on the blocking frame (108), an outer gear (110) fixedly mounted on the feeding sprocket (104) near the blocking frame (108), a conversion gear (111) rotatably mounted on the feeding frame (101), a conversion wheel (112) fixedly mounted on the conversion gear (111), the conversion gear (111) meshing with the outer gear (110), and an outer transmission belt (113) wrapped around the conversion wheel (112) and the blocking wheel (114).

4. The closely spaced, high-speed conveying mechanism according to claim 3, characterized in that: The initial adjustment mechanism includes multiple limiting posts (116) fixedly installed on the feeding frame (101), multiple feeding rollers (115) rotatably installed on the feeding frame (101), and a motor for driving the feeding rollers (115) is provided on the feeding frame (101).

5. The closely spaced, high-speed conveying mechanism according to claim 4, characterized in that: A rotating frame (117) is rotatably mounted on the feeding frame (101), and an adjusting electric cylinder (118) is rotatably mounted on the feeding frame (101). The output end of the adjusting electric cylinder (118) is rotatably mounted to the rotating frame (117), and an inclined sliding roller (119) is rotatably mounted on the rotating frame (117).

6. The closely spaced, high-speed conveying mechanism according to claim 1, characterized in that: The spacing module includes a lower rotating wheel (205) rotatably mounted on a connecting shaft (204), a friction wheel (206) fixedly mounted on the lower rotating wheel (205), a bracket (208) fixedly mounted on the rearmost chain plate (203), a speed-tracking roller (209) rotatably mounted on the bracket (208), an upper friction wheel (211) fixedly mounted on the speed-tracking roller (209), and a middle friction wheel (210) rotatably mounted on the bracket (208). The friction wheel (206) and the middle friction wheel (210) are connected. 210) A friction drive is formed, wherein the middle friction wheel (210) and the upper friction wheel (211) form a friction drive, and a driven frame (212) is fixedly installed on a plurality of chain plates (203) adjacent to the chain plate (203) on which the bracket (208) is installed in the forward direction. A driven roller (213) is rotatably installed on the driven frame (212), and a blocking plate (214) is fixedly installed on the chain plate (203) adjacent to the outermost chain plate (203) on which the driven frame (212) is installed.

7. The closely spaced, high-speed conveying mechanism according to claim 6, characterized in that: The speed-tracking mechanism also includes a fixed block (207) fixedly installed on the speed-tracking frame (201). The fixed block (207) and the friction tire (206) form a friction transmission. A motor for driving the speed-tracking wheel (202) to rotate is fixedly installed on the speed-tracking frame (201).

8. The closely spaced, high-speed conveying mechanism according to claim 1, characterized in that: The conveying mechanism includes a transfer frame (301), on which multiple conveying rollers (304) are rotatably mounted. A conveying motor (302) is fixedly mounted on the transfer frame (301). Conveying wheels (306) are fixedly mounted on the conveying rollers (304). A transverse transmission belt (305) is wound around every two adjacent conveying wheels (306). The conveying motor (302) drives the conveying wheels (306) above the conveying motor (302) to rotate through the input transmission belt (303). Multiple limiting columns (307) are fixedly mounted on the transfer frame (301). A lower electric cylinder (309) is rotatably mounted on the transfer frame (301). An adjusting frame (308) is rotatably mounted on the transfer frame (301). The adjusting frame (308) is rotatably mounted to the output end of the lower electric cylinder (309). Multiple rotating rollers (310) are rotatably mounted on the adjusting frame (308).

9. A closely spaced, high-speed conveying mechanism according to claim 8, characterized in that: The conveying mechanism also includes an output frame (311), on which an output motor (312) is fixedly mounted. Two output shafts (314) are rotatably mounted on the output frame (311), and an output conveyor belt (315) is wound around the two output shafts (314). The output motor (312) drives the output shafts (314) close to the output motor (312) to rotate through a drive belt (313).

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