Conveying belt system with controllable conveying path and adjusting method

Abstract

The conveying path controllable type conveying belt system comprises a rail base and at least two conveying belt units arranged on the rail base, each conveying belt unit comprises a movable bottom plate, a mounting rack and a conveying belt, the mounting racks are arranged on the movable bottom plates, and the movable bottom plates are arranged on the rail base in a sliding mode; the conveying belt comprises a driving roller, a telescopic cylinder and two rows of guide rollers, the lower row of guide rollers can move up and down relative to the upper row of guide rollers, and a return section of the belt sequentially and alternately penetrates through the two rows of guide rollers in an S-shaped path; the invention further provides an adjusting method. According to the conveying system with the adjustable conveying path, the multiple adjustable conveying belts are in butt joint to form the conveying system with the adjustable conveying path, the positions of the two ends of each conveying belt can be independently adjusted, and the lifting jack at the bottom of each conveying belt is matched, so that the conveying height, the conveying path length and the conveying inclination of each conveying belt can be adjusted as required; the conveying path of the conveying system is flexible and adjustable.

Description

Technical Field

[0001] The present invention relates to the technical field of conveying systems, and in particular to a conveyor belt system with controllable conveying path and an adjustment method thereof, and mainly to belt adjustment during the conveying path adjustment process of the conveyor belt system. Background Art

[0002] The conveyor belt system is the core part of the production line that transports materials sequentially to various processing links to achieve automated production. In actual application, the conveyor belt system is usually pre-customized according to the requirements of the transportation line or production line, and multiple conveyor belts are connected and assembled on-site. The length of each conveyor belt is fixed.

[0003] However, in actual production, conveyor belt systems are often optimized and adjusted multiple times based on product demand, often for the purpose of increasing efficiency, increasing production, or improving processes. This often requires adjusting the length of the conveyor belts, which requires increasing or decreasing the length or number of existing conveyor belts. This is equivalent to overhauling the production line or conveyor line, which is a significant workload. This is especially true for new transport workshops designed based on projected benefits. After receiving a large number of orders, production needs to be rapidly increased to meet delivery schedules. Therefore, based on the new production capacity requirements, significant adjustments to the conveyor lines are necessary to optimize the delivery path.

[0004] In addition, since the conveyor belt device is a fixed structure, the conveyor belt system it constitutes is also relatively fixed. The specifications of the conveyor belts are usually pre-customized and fixedly installed on-site in the factory. When the conveying path length is changed based on the needs of the conveying line adjustment, the availability of each conveyor belt in the original conveyor belt system is usually evaluated first, and then the unusable conveyor belts are removed, and the conveyor belts of new specifications are customized to reorganize and connect with the remaining conveyor belts to form a new conveying path.

[0005] Therefore, the existing conveyor belt system is difficult to adjust the length during the production line transformation process because the various conveyor belt devices that make up the conveyor belt system are customized fixed structures. As a result, the conveying path of the conveyor belt system needs to be customized and adjusted, which results in a large workload. Summary of the Invention

[0006] The purpose of the present invention is to provide a conveyor belt system with controllable conveying path and an adjustment method, specifically to provide a conveyor belt system and an adjustment method that can adjust the height and length of each section of the conveying path by adjusting the belt retraction and expansion, thereby changing the conveying height of the conveying area, so as to solve the technical problem in the prior art that the various conveyor belt devices that constitute the conveyor belt system are customized fixed structures, which are difficult to adjust the length during the production line transformation process, resulting in the conveying path of the conveyor belt system needing to be customized and adjusted, resulting in a large workload.

[0007] In order to solve the above technical problems, the present invention specifically provides the following technical solutions: A conveyor belt system with controllable conveying path and an adjustment method thereof, comprising: The utility model comprises a track base and at least two conveyor belt units arranged on the track base and connected end to end, wherein the conveyor belt unit comprises a movable bottom plate, a mounting frame and a conveyor belt, the mounting frame is arranged on the movable bottom plate, the movable bottom plate is slidably arranged on the track base, and the movable bottom plate can move along the track base; The conveyor belt includes a driving roller, a telescopic cylinder and two rows of guide rollers; A driving roller is provided at each end of the mounting frame, and a belt is provided between the two driving rollers to form a conveying surface; A telescopic cylinder is provided at each shaft end of the active roller, and the other end of the telescopic cylinder is rotatably mounted on the end of the mounting frame. The telescopic cylinders at both ends of the mounting frame adjust the relative position between the two active rollers by telescoping and rotating. Two rows of guide rollers are arranged below the conveying surface, the guide rollers in the upper row are fixed, and the guide rollers in the lower row can move up and down relative to the guide rollers in the upper row, and the return section of the belt alternately passes through each of the guide rollers in the two rows in an S-shaped path to increase the total length of the belt; The synchronous movement of the driving roller and the guide roller can adjust the height of the belt and the length of the conveying path between the two driving rollers.

[0008] As a preferred solution of the present invention, the track base is composed of a plurality of track units connected in sequence, the track unit includes two tracks parallel to the conveying direction of the conveyor belt, and a cross bar is provided between the two tracks, and the cross bar is used to keep the two tracks arranged in parallel; Connectors are provided at the butt ends of two adjacent rails, and the rails of a plurality of rail units are connected via the connectors to increase the total length of the rail base to match the total length of the conveyor belt system.

[0009] As a preferred embodiment of the present invention, the connector includes a connector body, both ends of the connector body protrude outward to form connector heads, and the surface height of the connector heads is lower than the surface height of the connector body, and the surface height of the connector body is equal to the surface height of the track; A slot is provided at the end of the rail, and the connector can be plugged into the slot, and bolt holes are provided through the slot and the connector. When the connector is fully inserted into the slot, the bolt holes on the slot and the connector are aligned, so that the connection can be locked by bolts; A connecting rod is provided between the two symmetrical connecting bodies, and the connecting rod is used to keep the two connecting bodies arranged in parallel and keep the distance between them equal to the distance between the two tracks. The connecting rod is parallel to the cross bar.

[0010] As a preferred solution of the present invention, the movable base plate includes a plate body, the plate body is provided with two rows of wheel holes, the wheel holes are parallel to the track on the same side, axle seats are provided on both sides of each wheel hole of the plate body, a track wheel is rotatably mounted between the axle seats on both sides of the same wheel hole, and the lower part of the track wheel passes through the wheel hole to the bottom of the plate body and abuts against the track; A blocker is slidably arranged on the track, the blocker straddles the track, and a locking bolt is arranged on the blocker, which can lock the blocker on the track or unlock it from the track to slide freely.

[0011] As a preferred solution of the present invention, the mounting frame is further provided with a fixed bracket and a movable seat, the fixed bracket is fixedly provided on the mounting frame, the movable seat and the fixed bracket are connected via a linear cylinder, two rows of guide rollers are respectively installed on the fixed bracket and the movable seat, and are installed in an upper and lower staggered manner, and the guide rollers on the movable seat move with the movable seat; The position of the active roller is changed by controlling the extension and contraction of the telescopic cylinder and adjusting the rotation of the telescopic cylinder, and the action of the linear cylinder is controlled to release or retract the belt, so that the conveyor belt is kept in a tensioned state.

[0012] As a preferred embodiment of the present invention, the fixed bracket includes two parallel fixed longitudinal beams, a plurality of fixed transverse beams arranged in an equidistant array are provided between the two fixed longitudinal beams, and the upper end of the linear cylinder is fixed to the outside of the fixed longitudinal beams and mounted on the mounting frame; A plurality of shaft seats are provided at the bottom of the fixed longitudinal beam, and the shaft seats are respectively located between two adjacent fixed transverse beams, and the two ends of the guide roller are rotatably mounted on two opposite shaft seats, and a space is provided between two adjacent shaft seats to accommodate the guide rollers in the lower row; The movable seat includes two parallel movable longitudinal beams, and the plurality of guide rollers in the lower row are arranged in an equidistant array and installed between the two movable longitudinal beams, and the number of the guide rollers in the lower row is one more than the number of the guide rollers in the upper row; The cylinder slider of the linear cylinder is connected and installed with the outer side wall of the moving longitudinal beam, and a plurality of slots are provided on the inner wall of the moving longitudinal beam, and the slots correspond to the shaft seats one by one.

[0013] As a preferred solution of the present invention, the cylinder ends of the two telescopic cylinders are rotatably mounted on both sides of the mounting frame, and the shaft end of the active roller is mounted on the cylinder rod ends of the two telescopic cylinders on the same side so as to be rotated and / or telescopically adjusted in position by the telescopic cylinders; Two double-headed cylinders are symmetrically arranged on the mounting frame, and the ends of the two cylinder rods of the double-headed cylinders are rotatably mounted on the two telescopic cylinders at the opposite ends of the same side of the mounting frame. The double-headed cylinders are used to extend and push the two telescopic cylinders away from each other, or shorten and pull the two telescopic cylinders towards each other, so as to synchronously adjust the angles of the two telescopic cylinders; Wherein, the middle part of the cylinder body of the double-headed cylinder is arranged on the mounting frame to limit the horizontal movement of the cylinder body of the double-headed cylinder.

[0014] As a preferred solution of the present invention, a connecting rod is provided at the end of the cylinder body of the telescopic cylinder. The connecting rod is installed at a fixed angle with the telescopic cylinder and extends downward. The two cylinder rod ends of the double-headed cylinder are movably installed on the two connecting rods on the same side. A groove is provided through the connecting rod, and two sliders are symmetrically slidably mounted on the inner wall of the groove, and the end of the cylinder rod of the double-headed cylinder is rotatably mounted between the two sliders; The double-headed cylinder includes two cylinder barrels, the two cylinder barrels are fixed to each other, a piston cylinder rod is installed in each cylinder barrel, and the two piston cylinder rods are oriented in opposite directions; An eccentric plate is provided on the end of the piston cylinder rod located outside the cylinder barrel, and an assembly plate is mounted on the eccentric plate. The assembly plate is rotatably mounted between the two sliders, and the two cylinder barrels are symmetrically distributed on both sides of the assembly plate; Wherein, the two piston cylinder rods work independently.

[0015] As a preferred solution of the present invention, a connecting frame is provided at both ends of each active roller, the connecting frame is concave in shape and faces the inner side of the active roller, and a scissor-type telescopic frame is provided between the two connecting frames; Wherein, a plurality of supporting rollers are provided on the scissor-type telescopic frame, and the plurality of supporting rollers are used to support the belt between the two active rollers; A support rod is provided on each pin shaft of the scissor-type telescopic frame, and a roller frame is provided on each support rod. The support roller is rotatably mounted on the roller frame, and the support roller abuts against the bottom surface of the belt located between the two active rollers.

[0016] In order to solve the above technical problems, the present invention further provides the following technical solutions: An adjustment method for the above-mentioned conveyor belt system with controllable conveying path is characterized by comprising the following steps: Step 100: Pre-lay the track base according to the production line extension length requirement, and make the track base longer than the total length of the connected conveyor belt units; Step 200: Push the movable base plate to move on the rail base, so that the distance between two adjacent conveyor belt units increases, freeing up an adjustment area to match the required length increase, and unlocking the multiple guide rollers in the lower row; Step 300: Adjust the horizontal and vertical positions of the two active rollers by rotating and extending the telescopic cylinder installed on the frame, so that the guide rollers in the lower row are pulled by the belt and move relative to the guide rollers in the upper row, so that the belt is adaptively released when the active rollers are adjusted; Step 400: After the active rollers on opposite sides of the two conveyor belts are adjusted and docked, the adjustment of the telescopic cylinder is stopped and the guide rollers are locked so that the docking length of the conveyor belt unit reaches the required length.

[0017] Compared with the prior art, the present invention has the following beneficial effects: The present invention aims to form a movable structure by forming a conveyor belt unit and a track base, so that before the conveyor belt conveying path of the conveyor belt is adjusted, the conveyor belt unit can be moved in advance to reserve adjustment space, so that the conveyor belt can be changed in length through the synchronous adjustment activities of the active roller and the lower row of guide rollers, thereby realizing the adjustable conveying path length of the conveyor belt system. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are merely exemplary, and those skilled in the art can, without inventive effort, derive other implementation drawings based on the provided drawings.

[0019] Figure 1 A schematic structural diagram of a conveyor belt system with controllable conveying path provided by an embodiment of the present invention; Figure 2 A schematic diagram of the structure of the wheel hole portion of a conveyor belt system with controllable conveying path provided by an embodiment of the present invention; Figure 3 A schematic diagram of the structure of the connecting parts of a conveyor belt system with controllable conveying path provided by an embodiment of the present invention; Figure 4 A schematic diagram of the structure of the barrier portion of a conveyor belt system with controllable conveying path provided by an embodiment of the present invention; Figure 5 A schematic diagram of the structure of a conveyor belt portion of a conveyor belt system with a controllable conveying path provided by an embodiment of the present invention; Figure 6A schematic diagram of the structure of the fixed frame and the movable frame of a conveyor belt system with a controllable conveying path provided by an embodiment of the present invention; Figure 7 A schematic diagram of the distribution of guide rollers of a conveyor belt system with controllable conveying path provided by an embodiment of the present invention; Figure 8 A schematic diagram of the structure of a scissor-type telescopic frame portion of a conveyor belt system with a controllable conveying path provided by an embodiment of the present invention; Figure 9 This is a schematic diagram of the structure of the double-head cylinder portion of the conveyor belt system with controllable conveying path provided by an embodiment of the present invention.

[0020] The numbers in the figure represent the following: 1-frame; 2-driving roller; 3-guide roller; 4-fixed bracket; 5-movable seat; 6-linear cylinder; 8-track base; 9-movable base plate; 11-Telescopic cylinder; 12-Double-head cylinder; 13-Connecting rod; 21-Belt; 22-Connecting frame; 23-Scissor-type telescopic frame; 24-Support roller; 41-Fixed longitudinal beam; 42-Fixed cross beam; 51-Moving longitudinal beam; 81-Track; 82-Cross bar; 83-Connecting piece; 91-Plate; 92-Wheel hole; 93-Axle seat; 94-Track wheel; 121-cylinder barrel; 122-piston cylinder rod; 123-eccentric plate; 124-assembly plate; 131-groove; 132-slider; 231-support rod; 232-roller frame; 411-axle seat; 511-slot; 811-slot; 812-blocker; 831-connector; 832-connector; 833-connecting rod. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0022] like Figure 1 、 Figure 5-7 As shown, the present invention provides a conveyor belt system with controllable conveying path, including a rail base 8, and at least two conveyor belt units arranged on the rail base 8 and connected end to end, the conveyor belt unit includes a movable base plate 9, a mounting frame 1 and a conveyor belt, the mounting frame 1 is arranged on the movable base plate 9, the movable base plate 9 is slidably arranged on the rail base 8, and the movable base plate 9 can move along the rail base 8.

[0023] Specifically, the track base 8 is detachably installed on the workshop floor, and the track base 8 is a splicing structure. Therefore, when adjusting the total length of the conveyor belt unit, the track base 8 is first extended by splicing, and then the movable base plate 9 is pushed to move on the track base 8 to change the distance between the two adjacent conveyor belt units to free up adjustable space. The conveyor belts are independently adjustable, and the conveying path length of the conveyor belt system is adjustable.

[0024] The conveyor belt includes a driving roller 2, a telescopic cylinder 11 and two rows of guide rollers 3; A driving roller 2 is provided at each end of the mounting frame 1, and a belt 21 is provided between the two driving rollers 2 to form a conveying surface; A telescopic cylinder 11 is provided at each axial end of the active roller 2, and the other end of the telescopic cylinder 11 is rotatably mounted on the end of the mounting frame 1. The telescopic cylinders 11 at both ends of the mounting frame 1 adjust the relative position between the two active rollers 2 by telescoping and rotating; Two rows of guide rollers 3 are arranged below the conveying surface. The guide rollers 3 in the upper row are fixed, and the guide rollers 3 in the lower row can move up and down relative to the guide rollers 3 in the upper row. The return section of the belt 21 passes through each guide roller 3 in the two rows in an S-shaped path, thereby increasing the total length of the belt 21. The synchronous movement of the driving roller 2 and the guide roller 3 can adjust the height of the belt 21 and the length of the conveying path between the two driving rollers 2.

[0025] Specifically, when the two telescopic cylinders 11 rotate upward, the two active rollers 2 rise, raising the conveying path (i.e., the conveying surface) of the belt 21. The distance between the two active rollers 2 decreases, shortening the conveying path. During this process, if the telescopic cylinders 11 extend, the distance between the two active rollers 2 remains constant or increases, raising the conveying path while maintaining or increasing its length. Alternatively, if the telescopic cylinders 11 contract, the distance between the two active rollers 2 decreases, raising the conveying path while further shortening it.

[0026] When the two telescopic cylinders 11 rotate downward, the two active rollers 2 descend, lowering the conveying path of the belt 21. The distance between the two active rollers 2 increases, lengthening the conveying path. During this process, if the telescopic cylinders 11 are shortened, the distance between the two active rollers 2 remains constant or decreases, lowering the conveying path while maintaining or shortening its length. Alternatively, if the telescopic cylinders 11 are extended, the distance between the two active rollers 2 increases, lowering the conveying path while further lengthening it.

[0027] The return section of the belt 21 first passes through the first guide roller 3 in the lower row, then passes upward through the first guide roller 3 in the upper row, and then passes downward to the second guide roller 3 in the lower row, and is installed in an S-shaped path alternating up and down to store the longer belt 21 between the two rows of guide rollers 3.

[0028] When adjusting the length and height of the conveying path, the lower row of guide rollers 3 are unlocked first. When the active roller 2 is adjusted in position by the telescopic cylinder 11, the distance between the active roller 2 and the longitudinal transmission mechanism increases or decreases. When the distance between the active roller 2 and the longitudinal transmission mechanism increases, the lower row of guide rollers 3 rises to release the belt 21, and when the distance between the active roller 2 and the longitudinal transmission mechanism decreases, the lower row of guide rollers 3 descends to retract the belt 21, so as to always keep the belt 21 taut.

[0029] The present invention aims to form a movable structure by forming a conveyor belt unit and a track base, so that before the conveyor belt conveying path of the conveyor belt is adjusted, the conveyor belt unit can be moved in advance to reserve adjustment space, so that the conveyor belt can be changed in length through the synchronous adjustment activities of the active roller and the lower row of guide rollers, thereby realizing the adjustable conveying path length of the conveyor belt system.

[0030] In addition, a storage area for storing the belt 21 is formed by staggering multiple guide rollers 3 in two rows to increase the capacity of the belt 21 and increase the adjustment range. The spacing between the two rows of guide rollers 3 is adjustable to achieve the retraction and extension of the belt 21, and the position of the adaptive active roller 2 is adjusted to achieve the size of the belt 21 being adjustable based on the position of the active roller 2.

[0031] Based on the above embodiment, a preferred embodiment of a rail base 8 is provided below.

[0032] like Figure 1 、 Figure 3 As shown, the track base 8 is composed of a plurality of track units connected in sequence. The track unit includes two tracks 81 parallel to the conveying direction of the conveyor belt. A crossbar 82 is provided between the two tracks 81 to keep the two tracks 81 parallel. Connectors 83 are provided at the butt ends of two adjacent rails 81 , and the rails 81 of multiple rail units are connected via the connectors 83 to increase the total length of the rail base 8 to match the total length of the conveyor belt system.

[0033] In this embodiment, the track base 8 adopts a double-track splicing design, which is a parallel track structure formed by connecting two tracks 81 and multiple cross bars, and adjacent tracks 81 can be spliced through connectors 83 to extend the total length of the track base 8.

[0034] Based on this, a preferred embodiment of the connecting member 83 is provided below.

[0035] like Figure 3 As shown, the connecting member 83 includes a connecting body 831, and both ends of the connecting body 831 protrude outward to form connecting heads 832, and the surface height of the connecting head 832 is lower than the surface height of the connecting body 831, and the surface height of the connecting body 831 is equal to the surface height of the track 81; A slot 811 is provided at the end of the rail 81, and a connector 832 can be plugged into the slot 811. Bolt holes are provided through both the slot 811 and the connector 832. When the connector 832 is fully inserted into the slot 811, the bolt holes on the slot 811 and the connector 832 are aligned, so that the connection can be tightened by bolts. A connecting rod 833 is provided between the two symmetrical connecting bodies 831 . The connecting rod 833 is used to keep the two connecting bodies 831 arranged in parallel and to keep the distance between them equal to the distance between the two rails 81 . The connecting rod 833 is parallel to the cross bar 82 .

[0036] In this embodiment, the connecting member 83 is composed of two connecting bodies 831 and a connecting rod 833 to form an I-shaped structure, and the connecting body 831 and the end of the rail 81 form a plug-in structure of a connecting head 832 and a slot 811, thereby realizing a quick connection of the rail base 8, and after connection, it can be locked by bolts.

[0037] Of course, the conveyor belt unit moves on the rail base 8 by relying on the movable base plate 9 to move on the rail base 8. Based on this, a preferred embodiment of the movable base plate 9 is provided below.

[0038] like Figure 1 、 Figure 2 、 Figure 4 As shown, the movable base plate 9 includes a plate body 91, which is provided with two rows of wheel holes 92. The wheel holes 92 are parallel to and aligned with the track 81 on the same side. An axle seat 93 is provided on both sides of each wheel hole 92 of the plate body 91. A track wheel 94 is rotatably mounted between the axle seats 93 on both sides of the same wheel hole 92, and the lower portion of the track wheel 94 passes through the wheel hole 92 to the bottom of the plate body 91 and abuts against the track 81. A stopper 812 is slidably provided on the track 81 , the stopper 812 straddling the track 81 , and a locking bolt is provided on the stopper 812 , which can lock the stopper 812 on the track 81 or unlock it from the track 81 to slide freely.

[0039] In this embodiment, the track wheel 94 is arranged above the plate body 91, and its bottom is placed below the plate body 91 through the wheel hole 92 and pressed against the track 81, thereby reducing the ground clearance of the plate body 91, lowering the center of gravity, and being more stable.

[0040] The blocker 812 provided on the track 81 can prevent the track wheel 94 from moving in this direction after being locked. By restricting the track wheels 94 at both ends, the plate body 91 is limited, so that the position of the conveyor belt unit is fixed.

[0041] The guide rollers 3 in the lower row can be locked and unlocked on the mounting frame 1, thereby first unlocking during adjustment and locking after adjustment to maintain the tension of the belt 21. Based on this, for more convenient operation, the following preferred embodiments are provided.

[0042] like Figure 5-7 As shown, the mounting frame 1 is further provided with a fixed bracket 4 and a movable seat 5. The fixed bracket 4 is fixedly arranged on the mounting frame 1. The movable seat 5 and the fixed bracket 4 are connected by a linear cylinder 6. Two rows of guide rollers 3 are respectively mounted on the fixed bracket 4 and the movable seat 5, and are installed in an upper and lower staggered manner. The guide rollers 3 on the movable seat 5 move with the movable seat 5. The position of the active roller 2 is changed by controlling the extension and contraction of the telescopic cylinder 11 and adjusting the rotation of the telescopic cylinder 11. At the same time, the action of the linear cylinder 6 is controlled to release or retract the belt 21 so that the conveyor belt remains in a tensioned state.

[0043] In this embodiment, the movement of multiple guide rollers 3 in the lower row is synchronously controlled by the movable seat 5, and the movable seat 5 is self-locked and unlocked by the linear cylinder 6, that is, when the linear cylinder 6 is unlocked, the movable seat 5 can move freely on the linear cylinder 5 through the cylinder slider, and when the linear cylinder 6 is self-locked, the movable seat 5 cannot move.

[0044] Based on the above embodiments, preferred embodiments of the fixing bracket 4 are provided below.

[0045] like Figure 5-7 As shown, the fixed bracket 4 includes two parallel fixed longitudinal beams 41, and a plurality of fixed transverse beams 42 arranged in an equidistant array are provided between the two fixed longitudinal beams 41, and the upper end of the linear cylinder 6 is fixed to the outside of the fixed longitudinal beam 41 and mounted on the mounting frame 1; A plurality of shaft seats 411 are provided at the bottom of the fixed longitudinal beam 41. The shaft seats 411 are respectively located between two adjacent fixed transverse beams 42. The two ends of the guide roller 3 are rotatably mounted on two opposite shaft seats 411. A space is provided between two adjacent shaft seats 411 to accommodate the guide rollers 3 in the lower row. The movable seat 5 includes two parallel movable longitudinal beams 51. The plurality of guide rollers 3 in the lower row are arranged in an equidistant array and installed between the two movable longitudinal beams 51. The number of guide rollers 3 in the lower row is one more than the number of guide rollers 3 in the upper row. The cylinder slider of the linear cylinder 6 is connected and installed with the outer wall of the movable longitudinal beam 51 , and a plurality of slots 511 are provided on the inner wall of the movable longitudinal beam 51 , and the slots 511 correspond to the shaft seats 411 one by one.

[0046] In this embodiment, the fixed bracket 4 is composed of a fixed longitudinal beam 41 and a fixed transverse beam 42 to form a frame structure, and an axle seat 411 is set at the bottom of the fixed longitudinal beam 41, so that the guide rollers 3 in the upper row can be installed on the axle seat 411, thereby away from the fixed longitudinal beam 41, and space for accommodating the guide rollers 3 in the lower row is reserved between two adjacent axle seats 411. After the movable seat 5 moves to the top, the guide rollers 3 in the upper and lower rows can be staggered, so that the belt 21 between them is flattened and completely released, effectively improving the adjustable range.

[0047] Of course, the movable seat 5 needs to match the fixed bracket 4 so that the upper and lower rows of guide rollers 3 can release the belt 21 to the greatest extent.

[0048] The movable seat 5 is composed of two movable longitudinal beams 51, and the two movable longitudinal beams 51 are connected by multiple guide rollers 3 to form a frame structure. In order to enable the guide rollers 3 in the lower row to move upward to form an offset movement with the guide rollers in the upper row, a groove 511 corresponding to the axle seat 411 is set on the movable longitudinal beam 51, and the axle seat 411 can be inserted into the groove 511 to ensure that the movable longitudinal beam 51 continues to carry the guide rollers 3 in the lower row to the top of the guide rollers 3 in the upper row, so that the belt 21 can be completely released and flattened.

[0049] Based on the above embodiment, when adjusting the height and / or spacing between the two active rollers 2, the telescopic cylinder 11 needs to be telescoped and / or rotated. Based on this, a preferred embodiment of the telescopic cylinder 11 is provided below.

[0050] like Figure 8 、 Figure 9 As shown, the cylinder ends of the two telescopic cylinders 11 are rotatably mounted on both sides of the mounting frame 1, and the shaft end of the active roller 2 is mounted on the cylinder rod ends of the two telescopic cylinders 11 on the same side, so as to be rotated and / or telescopically adjusted in position by the telescopic cylinders 11; Two double-headed cylinders 12 are symmetrically arranged on the mounting frame 1. The two cylinder rod ends of the double-headed cylinders 12 are respectively rotatably mounted on the two telescopic cylinders 11 at the opposite ends of the same side of the mounting frame 1. The double-headed cylinders 12 are used to extend and push the two telescopic cylinders 11 away from each other, or shorten and pull the two telescopic cylinders 11 towards each other, so as to synchronously adjust the angles of the two telescopic cylinders 11; The middle portion of the cylinder body of the double-headed cylinder 12 is arranged on the mounting frame 1 to limit the horizontal movement of the cylinder body of the double-headed cylinder 12 .

[0051] In this embodiment, the telescopic cylinder 11 is composed of two telescopic cylinders 11, and the cylinder ends of the telescopic cylinders 11 are rotatably mounted on the mounting frame 1. When the two telescopic cylinders 11 rotate and extend, the active roller 2 can be raised and lowered and / or translated, thereby achieving height adjustment and spacing adjustment of the two active rollers 2, that is, adjusting the height and length dimensions of the belt 21.

[0052] The double-headed cylinder 12 is used to synchronously drive the two telescopic cylinders 11. That is, when the cylinder rod of the double-headed cylinder 12 is extended and retracted, the telescopic cylinders 11 on both sides are pushed and pulled, thereby adjusting the angle of the telescopic cylinder 11, that is, rotating the telescopic cylinder 11 to change the height of the active roller 2; The end of the cylinder rod of the double-headed cylinder 12 is rotatably mounted on the telescopic cylinder 11. At this time, the double-headed cylinder 12 is mounted on the mounting frame 1 and is restricted by the mounting frame 1 so that it can only slide up and down. When the telescopic cylinder 11 rotates, the double-headed cylinder 12 can move up and down with the rotation of the telescopic cylinder 11. Alternatively, the cylinder rod end of the double-headed cylinder 12 is rotatably installed on the telescopic cylinder 11, and the cylinder rod end of the double-headed cylinder 12 is slidably set on the telescopic cylinder 11. At this time, the double-headed cylinder 12 is fixed on the mounting frame 1 so that it cannot move. When the telescopic cylinder 11 rotates, the cylinder rod end of the double-headed cylinder 12 can rotate and slide on the telescopic cylinder 11.

[0053] Based on the above embodiment, the connection method of the double-headed cylinder 12 and the telescopic cylinder 11 is as follows: Figure 8 、 Figure 9 As shown, a connecting rod 13 is provided at the end of the cylinder body of the telescopic cylinder 11. The connecting rod 13 is installed at a fixed angle to the telescopic cylinder 11 and extends downward. The two cylinder rod ends of the double-headed cylinder 12 are movably installed on the two connecting rods 13 on the same side. A groove 131 is provided through the connecting rod 13. Two sliders 132 are symmetrically slidably mounted on the inner wall of the groove 131. The end of the cylinder rod of the double-headed cylinder 12 is rotatably mounted between the two sliders 132. The double-headed cylinder 12 includes two cylinder barrels 121, which are fixed to each other. A piston rod 122 is installed in each cylinder barrel 121, and the two piston rods 122 face opposite directions. An eccentric plate 123 is provided on the end of the piston rod 122 outside the cylinder 121. An assembly plate 124 is mounted on the eccentric plate 123. The assembly plate 124 is rotatably mounted between the two sliders 132. The two cylinders 121 are symmetrically distributed on both sides of the assembly plate 124. The two piston cylinder rods 122 work independently.

[0054] In this embodiment, the connecting rod 13 is fixed to the cylinder end of the telescopic cylinder 11, and the cylinder end of the telescopic cylinder 11 is rotatably mounted on the mounting frame 1. When the double-headed cylinder 12 pushes and pulls the connecting rod 13, the connecting rod 13 can rotate the telescopic cylinder 11, thereby reducing the required stroke of the double-headed cylinder 12 and reducing the volume of the double-headed cylinder 12.

[0055] In addition, by providing a groove 131 on the connecting rod 13, the cylinder rod end of the double-headed cylinder 12 can be slidably installed in the groove 131 through the slider 132, so that the double-headed cylinder 12 can be fixed for use, so that the pressure pipeline of the double-headed cylinder 12 is stably arranged.

[0056] The double-headed cylinder 12 is a conventional coaxial double-headed cylinder 12, which can realize synchronous drive and rotate the telescopic cylinder 21. However, since the conventional double-headed cylinder 12 is usually driven synchronously, it is impossible to independently drive the telescopic cylinder 21 on one side to rotate. In addition, due to the fixed length, the cylinder rod stroke of the double-headed cylinder 12 is short, and it is difficult to realize a larger angle rotation of the telescopic cylinder 21, that is, the adjustment range is small.

[0057] Based on this, the double-headed cylinder 12 can be provided with two cylinder barrels 121 arranged side by side, and the piston cylinder rods 122 thereof face opposite directions, thereby obtaining a larger stroke distance, and the two cylinder barrels 121 can be independently connected to the pressure pipeline to realize independent drive, that is, the two telescopic cylinders 11 can rotate at different angles, realize the height difference adjustment of the active roller 2, and realize the climbing or descending adjustment of the belt 21; The eccentric plate 123 and the assembly plate 124 are used to connect the piston cylinder rod 122 and the slider 132 .

[0058] Based on the above embodiment, when the distance between the two active rollers 2 is increased, that is, when the conveying section of the belt 21 is lengthened, the middle part of the conveyor belt 21 is more easily compressed and collapsed. Therefore, in order to ensure that the belt 21 has sufficient supporting force after the length is adjusted, the following preferred embodiment is provided.

[0059] like Figure 8 As shown, a connecting frame 22 is provided at both ends of each active roller 2. The connecting frame 22 is concave in shape and faces the inner side of the active roller 2. A scissor-type telescopic frame 23 is provided between the two connecting frames 22. A plurality of support rollers 24 are provided on the scissor-type telescopic frame 23, and the plurality of support rollers 24 are used to support the belt 21 between the two active rollers 2; A support rod 231 is provided on each pin shaft of the scissor-type telescopic frame 23 , and a roller frame 232 is provided on each support rod 231 . The support roller 24 is rotatably mounted on the roller frame 232 , and the support roller 24 abuts against the bottom surface of the belt 21 located between the two active rollers 2 .

[0060] In this embodiment, a retractable scissor-type telescopic frame 23 is provided between the two active rollers 2 so that the two active rollers 2 can be extended and retracted in response to changes in the distance between the two active rollers 2. A support rod 231 is provided on each pin of the scissor-type telescopic frame 23, and a roller frame 232 is provided on the support rod 231. The support roller 24 can be mounted via the support rod 231 and the roller frame 232, thereby supporting the belt 21. And because the support roller 24 is arranged on the structure composed of the support rod 231 and the roller frame 232, and the support rod 231 is installed on the middle pin shaft of the scissor-type telescopic frame 23, when the scissor-type telescopic frame 23 is extended or retracted, the support roller 24 follows the movement, that is, when the scissor-type telescopic frame 23 is stretched, the spacing between the support rollers 24 increases, and when the scissor-type telescopic frame 23 is compressed, the spacing between the support rollers 24 decreases, so as to evenly support the belt 21.

[0061] Based on the above-mentioned conveyor belt system with controllable conveying path, an adjustment method is provided below, which is characterized by comprising the following steps: Step 100: Pre-lay the track base according to the production line extension length requirement, and make the track base longer than the total length of the connected conveyor belt units; Step 200: Push the movable base plate to move on the rail base, so that the distance between two adjacent conveyor belt units increases, freeing up an adjustment area to match the required length increase, and unlocking the multiple guide rollers in the lower row; Step 300: Adjust the horizontal and vertical positions of the two active rollers by rotating and extending the telescopic cylinder installed on the frame, so that the guide rollers in the lower row are pulled by the belt and move relative to the guide rollers in the upper row, so that the belt is adaptively released when the active rollers are adjusted; Step 400: After the active rollers on opposite sides of the two conveyor belts are adjusted and docked, the adjustment of the telescopic cylinder is stopped and the guide rollers are locked so that the docking length of the conveyor belt unit reaches the required length.

[0062] Specifically: When the conveying path length of the conveyor belt system needs to be increased, first increase the length of the track base by splicing based on the required increase in length, then unlock the movable base plate and push the first and last conveyor belt units to the sides to reach the required length position, and adjust the conveyor belt units in the middle part to reserve adjustment space between adjacent conveyor belt units.

[0063] The guide rollers in the lower row are then unlocked, and the positions of the two active rollers are adjusted using telescopic cylinders, so that the belts on the active rollers on opposite sides of adjacent conveyor belt units are brought closer together, achieving re-docking of the conveyor belt units. During this process, the adjustment of the active rollers pulls the multiple guide rollers in the lower row through the belts, causing them to move synchronously with the active rollers. When the active rollers stop adjusting, the guide rollers also stop moving. At this point, locking the multiple guide rollers completes the conveyor belt system's conveying path extension.

[0064] When it is necessary to shorten the conveying path length of the conveyor belt system, based on the above-mentioned conveyor belt adjustment method, adjust the length of each conveyor belt unit to the shortest, and then push each conveyor belt unit to move on the track base to reach the required conveying path length, and lock and maintain the movable base plate of the conveyor belt unit.

[0065] Then unlock the guide rollers of each conveyor belt, and according to the above-mentioned conveyor belt adjustment method, make the belts on the active rollers on the opposite sides of each adjacent conveyor belt unit close to each other, so as to realize the re-docking of the conveyor belt units. After the active rollers stop adjusting, the guide rollers stop moving. At this time, locking multiple guide rollers can shorten the conveying path of the conveyor belt system.

[0066] The above embodiments are merely exemplary embodiments of the present application and are not intended to limit the scope of the present application. The scope of protection of the present application is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present application within the essence and scope of protection of the present application, and such modifications or equivalent substitutions shall also be deemed to fall within the scope of protection of the present application.

Claims

1. A conveyor belt system with controllable conveying path, characterized in that: It comprises a rail base (8), and at least two conveyor belt units arranged on the rail base (8) and connected end to end, the conveyor belt unit comprising a movable base plate (9), a mounting frame (1) and a conveyor belt, the mounting frame (1) being arranged on the movable base plate (9), the movable base plate (9) being slidably arranged on the rail base (8), and the movable base plate (9) being capable of moving along the rail base (8); The conveyor belt comprises a driving roller (2), a telescopic cylinder (11) and two rows of guide rollers (3); A driving roller (2) is provided at each end of the mounting frame (1), and a belt (21) is provided between the two driving rollers (2) to form a conveying surface; A telescopic cylinder (11) is provided at each axial end of the active roller (2), and the other end of the telescopic cylinder (11) is rotatably mounted on the end of the mounting frame (1). The telescopic cylinders (11) at both ends of the mounting frame (1) adjust the relative position between the two active rollers (2) by telescoping and rotating. Two rows of guide rollers (3) are arranged below the conveying surface, the guide rollers (3) in the upper row are fixed, and the guide rollers (3) in the lower row can move up and down relative to the guide rollers (3) in the upper row, and the return section of the belt (21) alternately passes through each of the guide rollers (3) in the two rows in an S-shaped path to increase the total length of the belt (21); The synchronous movement of the active roller (2) and the guide roller (3) can adjust the height and conveying path length of the belt (21) between the two active rollers (2).

2. A conveyor belt system with controllable conveying path according to claim 1, characterized in that: The track base (8) is composed of a plurality of track units connected in sequence, wherein the track unit comprises two tracks (81) parallel to the conveying direction of the conveyor belt, and a crossbar (82) is provided between the two tracks (81), and the crossbar (82) is used to keep the two tracks (81) arranged in parallel; Connectors (83) are provided at the butt ends of two adjacent rails (81), and the rails (81) of a plurality of rail units are connected via the connectors (83) to increase the total length of the rail base (8) and match the total length of the conveyor belt system.

3. A conveyor belt system with controllable conveying path according to claim 2, characterized in that: The connecting member (83) includes a connecting body (831), both ends of the connecting body (831) protrude outward to form connecting heads (832), and the surface height of the connecting heads (832) is lower than the surface height of the connecting body (831), and the surface height of the connecting body (831) is equal to the surface height of the track (81); A slot (811) is provided at the end of the track (81), and the connector (832) can be plug-connected to the slot (811), and bolt holes are provided through the slot (811) and the connector (832). When the connector (832) is fully inserted into the slot (811), the bolt holes on the slot (811) and the connector (832) are aligned, so that they can be locked and connected by bolts. A connecting rod (833) is provided between the two symmetrical connecting bodies (831), and the connecting rod (833) is used to keep the two connecting bodies (831) arranged in parallel and to keep the distance between them equal to the distance between the two tracks (81). The connecting rod (833) is parallel to the crossbar (82).

4. A conveyor belt system with controllable conveying path according to claim 3, characterized in that: The movable base plate (9) includes a plate body (91), and two rows of wheel holes (92) are provided on the plate body (91), and the wheel holes (92) are parallel to the track (81) on the same side. An axle seat (93) is provided on both sides of each wheel hole (92) of the plate body (91), and a track wheel (94) is rotatably installed between the axle seats (93) on both sides of the same wheel hole (92), and the lower part of the track wheel (94) passes through the wheel hole (92) to the bottom of the plate body (91) and abuts against the track (81); A stopper (812) is slidably provided on the track (81), the stopper (812) straddling the track (81), and a locking bolt is provided on the stopper (812), the locking bolt being capable of locking the stopper (812) on the track (81) or unlocking the stopper from the track (81) to slide freely.

5. The conveyor belt system with controllable conveying path according to claim 1, characterized in that: The mounting frame (1) is further provided with a fixed bracket (4) and a movable seat (5), the fixed bracket (4) is fixedly mounted on the mounting frame (1), the movable seat (5) and the fixed bracket (4) are connected via a linear cylinder (6), the two rows of guide rollers (3) are respectively mounted on the fixed bracket (4) and the movable seat (5), and are mounted in an upper and lower staggered manner, and the guide rollers (3) on the movable seat (5) move with the movable seat (5); The position of the active roller (2) is changed by controlling the extension and contraction of the telescopic cylinder (11) and adjusting the rotation of the telescopic cylinder (11), and the action of the linear cylinder (6) is controlled to release or retract the belt (21) so that the conveyor belt remains in a tensioned state.

6. The conveyor belt system with controllable conveying path according to claim 5, characterized in that: The fixed bracket (4) includes two parallel fixed longitudinal beams (41), a plurality of fixed transverse beams (42) arranged in an equidistant array are provided between the two fixed longitudinal beams (41), and the upper end of the linear cylinder (6) is fixed to the outside of the fixed longitudinal beams (41) and mounted on the mounting frame (1); A plurality of shaft seats (411) are provided at the bottom of the fixed longitudinal beam (41), the shaft seats (411) being respectively located between two adjacent fixed transverse beams (42), and both ends of the guide roller (3) are rotatably mounted on two opposite shaft seats (411), and a space for accommodating the guide rollers (3) in the lower row is provided between two adjacent shaft seats (411); The movable seat (5) comprises two parallel movable longitudinal beams (51), and the plurality of guide rollers (3) in the lower row are arranged in an equidistant array and installed between the two movable longitudinal beams (51), and the number of the guide rollers (3) in the lower row is one more than the number of the guide rollers (3) in the upper row; The cylinder slider of the linear cylinder (6) is connected and installed with the outer wall of the movable longitudinal beam (51), and a plurality of slots (511) are provided on the inner wall of the movable longitudinal beam (51), and the slots (511) correspond one-to-one to the shaft seats (411).

7. A conveyor belt system with controllable conveying path according to any one of claims 1 to 6, characterized in that: The cylinder ends of the two telescopic cylinders (11) are rotatably mounted on both sides of the mounting frame (1), and the shaft end of the active roller (2) is mounted on the cylinder rod ends of the two telescopic cylinders (11) on the same side so as to be rotated and / or telescopically adjusted in position by the telescopic cylinders (11); Two double-headed cylinders (12) are symmetrically arranged on the mounting frame (1), and the two cylinder rod ends of the double-headed cylinders (12) are respectively rotatably mounted on the two telescopic cylinders (11) at the opposite ends of the same side of the mounting frame (1). The double-headed cylinders (12) are used to extend and push the two telescopic cylinders (11) away from each other, or shorten and pull the two telescopic cylinders (11) toward each other, so as to synchronously adjust the angles of the two telescopic cylinders (11); Wherein, the middle portion of the cylinder body of the double-headed cylinder (12) is arranged on the mounting frame (1) to limit the horizontal movement of the cylinder body of the double-headed cylinder (12).

8. The conveyor belt system with controllable conveying path according to claim 7, characterized in that: A connecting rod (13) is provided at the end of the cylinder body of the telescopic cylinder (11), the connecting rod (13) is installed at a fixed angle with the telescopic cylinder (11) and extends downward, and the two cylinder rod ends of the double-headed cylinder (12) are movably installed on the two connecting rods (13) on the same side; A groove (131) is provided through the connecting rod (13), two sliders (132) are symmetrically and slidably mounted on the inner wall of the groove (131), and the end of the cylinder rod of the double-headed cylinder (12) is rotatably mounted between the two sliders (132); The double-headed cylinder (12) comprises two cylinder barrels (121), the two cylinder barrels (121) are fixed to each other, a piston cylinder rod (122) is installed in each cylinder barrel (121), and the two piston cylinder rods (122) face in opposite directions; An eccentric plate (123) is provided on the end of the piston cylinder rod (122) located outside the cylinder barrel (121), an assembly plate (124) is mounted on the eccentric plate (123), the assembly plate (124) is rotatably mounted between the two sliders (132), and the two cylinder barrels (121) are symmetrically distributed on both sides of the assembly plate (124); The two piston cylinder rods (122) operate independently.

9. The conveyor belt system with controllable conveying path according to claim 8, characterized in that: A connecting frame (22) is provided at both ends of each active roller (2), the connecting frame (22) being concave in structure and facing the inner side of the active roller (2), and a scissor-type telescopic frame (23) being provided between the two connecting frames (22); Wherein, a plurality of support rollers (24) are provided on the scissor-type telescopic frame (23), and the plurality of support rollers (24) are used to support the belt (21) between the two active rollers (2); A support rod (231) is provided on each pin shaft of the scissor-type telescopic frame (23), a roller frame (232) is provided on each support rod (231), and the support roller (24) is rotatably mounted on the roller frame (232), and the support roller (24) abuts against the bottom surface of the belt (21) located between the two active rollers (2).

10. An adjustment method for a conveyor belt system with controllable conveying path according to any one of claims 1 to 9, characterized in that: The steps include: Step 100: Pre-lay the track base according to the production line extension length requirement, and make the track base longer than the total length of the connected conveyor belt units; Step 200: Push the movable base plate to move on the rail base, so that the distance between two adjacent conveyor belt units increases, freeing up an adjustment area to match the required length increase, and unlocking the multiple guide rollers in the lower row; Step 300: Adjust the horizontal and vertical positions of the two active rollers by rotating and extending the telescopic cylinder installed on the frame, so that the guide rollers in the lower row are pulled by the belt and move relative to the guide rollers in the upper row, so that the belt is adaptively released when the active rollers are adjusted; Step 400: After the active rollers on opposite sides of the two conveyor belts are adjusted and docked, the adjustment of the telescopic cylinder is stopped and the guide rollers are locked so that the docking length of the conveyor belt unit reaches the required length.

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