Double-belt feeding device

Abstract

The utility model provides a double-belt feeding device, which belongs to the field of wood-working machinery and comprises two conveying belts which are collinearly arranged, the two conveying belts are both in transmission connection with a power structure, and the power structure drives the two conveying belts to rotate along the same direction or rotate along opposite directions. When a large-area plate is processed, the two conveying belts can synchronously rotate to play a role of a traditional feeding device, and when a small-area plate is processed, the two conveying belts can independently rotate to realize simultaneous processing and feeding or simultaneous processing of double stations, so that the processing efficiency is improved. And the space utilization rate and the machining efficiency of the workbench are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of woodworking machinery, especially relates to a double-belt feeding device. BACKGROUND

[0002] The feeding device is arranged on both sides of the workbench of the woodworking automatic drilling equipment, so as to convey the plate material to the workbench for processing or send the processed plate material away from the workbench. The existing feeding device is a whole conveying belt which spans the whole workbench. When the size of the workbench is small, the drilling of large-area plate cannot be carried out. When the size of the workbench is large, although the drilling of small-area plate can be carried out, the area of the workbench cannot be fully utilized, and the feeding device needs a long distance for conveying, which causes the waste of space and energy to some extent. SUMMARY

[0003] Based on the above problems existing in the prior art, the utility model provides a double-belt feeding device, which comprises two co-linear conveying belts, and the two conveying belts are all drivingly connected to a power structure, and the two conveying belts are driven to rotate in the same direction or in opposite directions by the power structure.

[0004] The double-belt feeding device further comprises two groups of mutually symmetrical pulley sets, each group of pulley sets comprises a power pulley and two pulleys rotatingly installed on the workbench, the two pulleys are engaged with the same conveying belt, the conveying belt is engaged with the power pulley, the power pulley is drivingly connected to the power structure, and the two conveying belts are respectively installed on the two groups of pulley sets.

[0005] The power structure comprises two driving motors, the two driving motors and the two groups of pulley sets are independently drivingly connected in one-to-one correspondence, or one group of pulley sets and one driving motor are independently drivingly connected, the other group of pulley sets is drivingly connected to the two driving motors through a gear shifting structure, and the two driving motors are respectively drivingly connected to different gears of the gear shifting structure.

[0006] The power wheel of the wheel set is fixedly connected with the turbine end of the worm gear box, and the worm end of the worm gear box is in transmission connection with the output shaft of the driving motor; one of the driving motors serves as a first motor, and the other driving motor serves as a second motor; the output shaft of the first motor is fixedly installed with a linkage rod, the linkage rod is connected to the worm end of one of the worm gear boxes, the worm gear box is a first gear box, and the other worm gear box is a second gear box; the linkage rod extends to a gear shifting structure and is fixedly installed with a positive transmission disc, and the positive transmission disc is provided with a plurality of transmission holes; the gear shifting structure comprises a box body, a second transmission gear is rotatably installed on the box body, the second transmission gear is fixedly connected with the output shaft of the second motor, a transmission shaft is rotatably installed on one side of the second transmission gear, the transmission shaft is fixedly connected with the worm end of the second gear box, an axle seat is slidably installed on the transmission shaft in the axial direction, a reverse transmission disc is fixedly installed on one end of the axle seat, the reverse transmission disc is provided with a plurality of transmission columns which are matched with the transmission holes and are inserted into the transmission holes in a matched mode, a first transmission gear which is matched with the second transmission gear is fixedly installed on the other end of the axle seat, and a shifting structure for shifting the axle seat to slide along the transmission shaft is also fixedly installed on the axle seat; the transmission columns are inserted into the transmission holes or the first transmission gear and the second transmission gear are engaged by sliding the axle seat.

[0007] The shifting structure comprises a mounting ring which is fixedly installed on the axle seat, a guide column which extends upward and downward is arranged on the mounting ring, a handle is slidably installed on the guide column, and a return spring is sleeved and arranged on the guide column between the handle and the mounting ring; two gear slot corresponding to two gears are arranged on the top of the box body, a sliding groove is connected between the gear slots, the width of the sliding groove is smaller than that of the gear slots, the width of the gear slots is matched with that of the handle, a sliding part is arranged on the handle, the width of the sliding part is matched with that of the sliding groove, and the handle passes through the gear slots.

[0008] The transmission shaft and the linkage rod are coaxially arranged, a stabilizing shaft is arranged on one end of the linkage rod close to the transmission shaft, and the diameter of the stabilizing shaft is smaller than that of the linkage rod; a stabilizing hole which is matched with the stabilizing shaft is arranged at the center of the transmission shaft, the stabilizing shaft is rotatably inserted into the stabilizing hole, and two limiting wings which are radially symmetrically arranged are protruded on the transmission shaft; a limiting groove which is matched with the limiting wings is arranged on the axle seat, the limiting wings are inserted into the limiting groove and limit the relative rotation between the axle seat and the transmission shaft.

[0009] The double-belt feeding device further comprises a lifting structure, the lifting structure comprises a lifting cylinder, the telescopic end of the lifting cylinder faces upward and is fixedly installed with a load-bearing rod, and the conveying belt is a closed loop belt; the load-bearing rod is located below the upper part of the conveying belt.

[0010] The utility model has the beneficial effects: two collinear conveying belts are arranged, and the conveying belts are all transmissionally connected to the power structure, synchronous rotation of the two conveying belts can be realized when processing large-area plates, the role of traditional feeding devices is played, independent rotation of the two conveying belts can be realized when processing small-area plates, one -side processing and one -side feeding are realized, or double workstations simultaneously process, and the space utilization rate and processing efficiency of the workbench are improved. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is a three-dimensional structure schematic view of a double-belt feeding device.

[0012] Figure 2 It is a three-dimensional structure schematic view of another angle of a double-belt feeding device.

[0013] Figure 3 It is a three-dimensional structure schematic view of a double-belt feeding device, hiding a conveying belt and part of the related structure.

[0014] Figure 4 It is Figure 3 The enlarged view of A.

[0015] Figure 5 It is a three-dimensional structure schematic view of a gear shifting structure, in independent rotation state.

[0016] Figure 6 It is a three-dimensional structure schematic view of a gear shifting structure, in synchronous rotation state.

[0017] Figure 7 It is a three-dimensional structure schematic view of a gear shifting structure, in synchronous rotation state, hiding the top of the box.

[0018] Figure 8 It is a three-dimensional structure schematic view of a stable shaft and the related structure.

[0019] Figure 9 It is a cooperation schematic view of a transmission shaft and a linkage rod.

[0020] Figure 10 It is a three-dimensional structure schematic view of a shaft seat and the related structure.

[0021] Figure 11 It is Figure 10 The exploded structure schematic view of the structure.

[0022] Figure 12 It is a processing cooperation schematic view of a feeding device and two plates. DETAILED DESCRIPTION

[0023] The utility model will be described in detail in combination with the drawings and specific embodiments.

[0024] As shown in the drawingsFigures 1-11 The double-belt feeding device comprises a mounting base 1 fixedly mounted on a worktable of a woodworking automatic drilling device, a first motor 2 and a second motor 3 are fixedly mounted at two ends of the mounting base 1 respectively, the two driving motors constitute a power structure, two groups of symmetrical belt pulley sets are mounted on one side of the mounting base 1, each group of belt pulley sets comprises a power pulley 4 and two belt pulleys 5 rotatably mounted on the mounting base 1, the power pulley 4 and the belt pulleys 5 are toothed pulleys, the two belt pulleys 5 in the group are meshed with a same toothed conveying belt 6, the conveying belt 6 forms a closed loop, the conveying belt 6 is also meshed with the power pulley 4, the power pulley 4 and the corresponding driving motor of the power structure are drivingly connected through a worm gear box 7, a tension pulley 8 is rotatably mounted on each side of the power pulley 4 of the mounting base 1, the tension pulley 8 is a non-toothed pulley 5, the power pulley 4 is located in the closed loop of the conveying belt 6, the two tension pulleys 8 are located outside the closed loop of the conveying belt 6, the conveying belt 6 is pressed to the power pulley 4 through the two tension pulleys 8, two groups of belt pulley sets are provided with two conveying belts 6, the two conveying belts 6 are arranged in line, the conveying belt 6 is drivingly connected to the power structure through the cooperation of the power pulley 4 and the worm gear box 7, and the two conveying belts 6 are driven by the power structure to rotate in the same direction or in opposite directions. Two groups of lifting structures are mounted on the mounting base 1 corresponding to the two conveying belts 6, each group of lifting structures comprises two lifting cylinders 9, the extension ends of the two lifting cylinders 9 are upward and fixedly provided with a same load-bearing rod 10, the length of the load-bearing rod 10 is slightly shorter than the length of the closed loop of the conveying belt 6, so that the load-bearing rod 10 can be located below the upper part of the conveying belt 6, and the height of the upper part of the conveying belt 6 can be adjusted through the lifting cylinders 9.

[0025] As a preferred embodiment, the power pulley 4 of one group of belt pulley sets and the turbine end of the worm gear box 7 are fixedly connected, the worm end of the worm gear box 7 and the output shaft of the first motor 2 are independently drivingly connected, the worm gear box 7 is a first gear box, the other worm gear box 7 is a second gear box, the output shaft of the first motor 2 is fixedly provided with a linkage rod 11, the linkage rod 11 is connected to the worm end of the first gear box, in actual production, a thread matched with the turbine can be arranged at the position of the turbine of the linkage rod 11, so that the linkage rod 11 simultaneously serves as a worm; the power pulley 4 of the other group of belt pulley sets and the turbine end of the second gear box are fixedly connected, the worm end of the second gear box is drivingly connected through a gear shifting structure 12 and the two driving motors, and the two driving motors are drivingly connected to different gears of the gear shifting structure 12.

[0026] The gear shifting structure 12 comprises a box 13, a second transmission gear 14 rotatably mounted on the box 13, the second transmission gear 14 being fixedly connected with an output shaft of the second motor 3, a transmission shaft 15 rotatably mounted on one side of the second transmission gear 14, the transmission shaft 15 being fixedly connected with a worm end of a second gear box. The linkage rod 11 extends into the box 13 of the gear shifting structure 12 and is fixedly mounted with a positive transmission disc 16, the positive transmission disc 16 is provided with four transmission holes 17, the four transmission holes 17 are uniformly arranged along the axis, two adjacent transmission holes 17 are separated by 90°, the transmission shaft 15 and the linkage rod 11 are coaxially arranged, the linkage rod 11 is provided with a stabilizing shaft 18 at one end close to the transmission shaft 15, the diameter of the stabilizing shaft 18 is smaller than that of the linkage rod 11; the transmission shaft 15 is provided with a stabilizing hole matched with the stabilizing shaft 18, the stabilizing shaft 18 is rotatably inserted into the stabilizing hole, bearings can be added between the stabilizing shaft 18 and the stabilizing hole to improve the rotation smoothness therebetween, the insertion of the stabilizing shaft 18 into the stabilizing hole enables the linkage rod 11 and the transmission shaft 15 to support each other, thereby improving the stability of the gear shifting structure 12. The transmission shaft 15 is provided with two limiting wings 19 protruding radially symmetrically, the transmission shaft 15 is slidably mounted with an axle seat 20 in the axial direction, the axle seat 20 is provided with limiting grooves 21 matched with the limiting wings 19, the limiting wings 19 are inserted into the limiting grooves 21 and limit the relative rotation of the axle seat 20 and the transmission shaft 15, the axle seat 20 is fixedly mounted with a reverse transmission disc 22 at one end, the reverse transmission disc 22 is provided with four transmission columns 23 matched with the transmission holes 17 for insertion and cooperation, the transmission columns 23 and the transmission holes 17 are both chamfered at one end close to each other, so that the transmission columns 23 are more accurately inserted into the transmission holes 17, the axle seat 20 is fixedly mounted with a first transmission gear 24 matched with the second transmission gear 14 for meshing at the other end, the axle seat 20 is also fixedly mounted with a shifting structure for shifting the axle seat 20 to slide along the transmission shaft 15, the transmission columns 23 are inserted into the transmission holes 17 or the first transmission gear 24 and the second transmission gear 14 are meshed by shifting the axle seat 20. The shifting structure comprises a mounting ring 25 fixedly mounted on the axle seat 20, the mounting ring 25 is provided with two guide columns 29 extending upward and downward, the same handle 30 is slidably mounted on the two guide columns 29, the guide columns 29 are sleeved and mounted with a return spring between the handle 30 and the mounting ring 25; the box 13 is provided with two gear position grooves 26 corresponding to two gear positions at the top, the gear position grooves 26 are connected with a sliding groove 27, the width of the sliding groove 27 is smaller than that of the gear position grooves 26, the width of the gear position grooves 26 is matched with that of the handle 30, the handle 30 is provided with a sliding part 28, the width of the sliding part 28 is matched with that of the sliding groove 27, the handle 30 passes through the gear position grooves 26.

[0027] The feeding device provided by the embodiment is applied to a feeding device of a numerical control automatic five-face drilling equipment for wood, and is used in cooperation with a conventional clamping structure on the five-face drilling equipment; when a board is conveyed, the lifting cylinder 9 is started and drives the load bearing rod 10 and the conveying belt 6 to slightly rise, so that the conveying belt 6 is attached to the bottom of the board, the weight of the board is borne by the load bearing rod 10, the conveying belt 6 is prevented from being deformed under stress, and meanwhile, the attachment degree of the conveying belt 6 and the board is improved, and the conveying friction is improved. When the conveying is completed, the lifting cylinder 9 drives the load bearing rod 10 to reset, and the conveying belt 6 naturally falls back, so that the clamping force from top to bottom of the clamping structure is prevented from pressing the conveying belt 6 through the board, and the damage of the conveying belt 6 and the board is avoided.

[0028] In use, when large-area boards are conveyed and two conveying belts 6 need to be used at the same time, the handle 30 can be pressed down first, so that the sliding part 28 moves downward to the top of the box body 13, and the handle 30 is pushed to make the sliding part 28 slide through the sliding groove 27 to the corresponding gear slot 26; at the same time, the shaft seat 20 is driven by the handle 30 to slide close to the positive transmission disc 16, and the transmission column 23 is inserted into the transmission hole 17, so that the transmission connection is realized, the handle 30 is released, and the handle 30 is reset and rises under the action of the reset spring, so that the sliding part 28 rises to leave the top of the box body 13, so that the handle 30 cannot be moved to another gear slot 26 through the sliding groove 27, as shown in FIG. 6, at this time, the first transmission gear 24 and the second transmission gear 14 are not engaged in transmission, the first motor 2 drives the two conveying belts 6 to rotate in the same direction through the transmission of the linkage rod 11 and the transmission shaft 15, and the function of the traditional feeding device is played, and the second motor 3 does not work. Figure 6

[0029] When small-area boards are conveyed and only one conveying belt 6 needs to be used, the handle 30 is also pressed down and pushed to another gear slot 26, the handle 30 drives the shaft seat 20 to slide away from the positive transmission disc 16, the transmission column 23 and the transmission hole 17 are separated from each other, and the first transmission gear 24 and the second transmission gear 14 gradually approach and realize meshing transmission, as shown in FIG. 7, at this time, the first motor 2 and the second motor 3 independently drive one conveying belt 6 to rotate, the two conveying belts 6 can independently rotate to form double-drilling-hole stations, one side can be drilled and processed, and the other side can be conveyed and fed, the space of the workbench is fully utilized, and the drilling efficiency is improved. Figure 5

[0030] The above-described embodiment only expresses one implementation manner of the utility model, the description is relatively specific and detailed, but it cannot be understood as a limitation on the patent range of the utility model. It should be noted that, for ordinary skilled persons in the art, without departing from the concept of the utility model, a plurality of modifications and improvements can be made, which belong to the protection range of the utility model. Therefore, the protection range of the utility model patent should be subject to the appended claims.​​

Claims

1. A dual-belt feed device characterized by, It includes two co-linearly arranged conveying belts (6), both of which are drivingly connected to a power structure, and driven by the power structure to rotate in the same direction or in opposite directions.

2. A dual belt feeder as claimed in claim 1, wherein, It also includes two sets of mutually symmetrical pulley groups, each of which includes a power wheel (4) and two belt pulleys (5) rotatably mounted to the workbench, both of which are engaged with the same conveying belt (6), the conveying belt (6) and the power wheel (4) are engaged, the power wheel (4) and the power structure are drivingly connected, and the two conveying belts (6) are respectively mounted to the two sets of pulley groups.

3. A dual belt feed device according to claim 2, wherein, The power structure includes two drive motors, which are independently drivingly connected to the two sets of pulley groups one by one; or one of the drive motors is independently drivingly connected to one of the pulley groups, and the other drive motor is drivingly connected to the other pulley group through a gear shifting structure (12); and the two drive motors are respectively drivingly connected to different gears of the gear shifting structure (12).

4. A dual belt feed apparatus as claimed in claim 3, wherein, The power wheel (4) of the pulley group and the turbine end of the turbine worm gear box (7) are fixedly connected, and the worm end of the turbine worm gear box (7) and the output shaft of the drive motor are drivingly connected; one of the drive motors is used as a first motor (2), and the other is used as a second motor (3); the output shaft of the first motor (2) is fixedly mounted with a linkage rod (11), which is connected to the worm end of one of the turbine worm gear boxes (7), which is a first gear box; the other turbine worm gear box (7) is a second gear box; the linkage rod (11) extends to the gear shifting structure (12) and is fixedly mounted with a positive transmission disc (16), which is provided with a plurality of transmission holes (17); the gear shifting structure (12) includes a box body (13), which is rotatably mounted with a second transmission gear (14) on one side of the box body (13), and the output shaft of the second motor (3) is fixedly connected to the second transmission gear (14); the box body (13) is rotatably mounted with a transmission shaft (15) on the side of the second transmission gear (14), and the transmission shaft (15) and the worm end of the second gear box are fixedly connected; the transmission shaft (15) is slidably mounted with an axle seat (20) on the shaft, one end of the axle seat (20) is fixedly mounted with a reverse transmission disc (22), the reverse transmission disc (22) is provided with a plurality of transmission columns (23) matched with the transmission holes (17) for insertion and cooperation, the other end of the axle seat (20) is fixedly mounted with a first transmission gear (24) matched with the second transmission gear (14), and the axle seat (20) is also fixedly mounted with a shifting structure for shifting the axle seat (20) to slide along the transmission shaft (15), so that the transmission column (23) is inserted into the transmission hole (17) or the first transmission gear (24) and the second transmission gear (14) are engaged by sliding the axle seat (20).

5. A dual belt feed apparatus as claimed in claim 4, wherein, The toggle structure comprises a mounting ring (25) fixedly mounted to the shaft seat (20), the mounting ring (25) is provided with a guide column (29) extending upward and downward, a handle (30) is slidably mounted on the guide column (29), and a return spring is sleeved between the handle (30) and the mounting ring (25); the top of the box body (13) is provided with two gear grooves (26) corresponding to two gears respectively, a sliding groove (27) is connected between the gear grooves (26), the width of the sliding groove (27) is smaller than that of the gear grooves (26), the width of the gear grooves (26) and the handle (30) is matched, the handle (30) is provided with a sliding part (28), the width of the sliding part (28) is matched with the sliding groove (27), and the handle (30) penetrates through the gear grooves (26).

6. A dual belt feed apparatus as claimed in claim 4, wherein, The transmission shaft (15) and the linkage rod (11) are coaxially arranged, the linkage rod (11) is provided with a stabilizing shaft (18) at one end close to the transmission shaft (15), and the diameter of the stabilizing shaft (18) is smaller than that of the linkage rod (11); the transmission shaft (15) is provided with a stabilizing hole matched with the stabilizing shaft (18) at the shaft center, the stabilizing shaft (18) is rotatably inserted into the stabilizing hole, and the transmission shaft (15) is provided with two limiting wings (19) protruding in the radial direction, the shaft seat (20) is provided with a limiting groove (21) matched with the limiting wing (19), the limiting wing (19) is inserted into the limiting groove (21) and limits the relative rotation between the shaft seat (20) and the transmission shaft (15).

7. A dual-belt feeder according to any one of claims 1-6, characterized in that It also comprises a lifting structure, the lifting structure comprises a lifting cylinder (9), the telescopic end of the lifting cylinder (9) faces upward and is fixedly provided with a load-bearing rod (10), the conveying belt (6) is a closed loop belt, and the load-bearing rod (10) is located below the upper part of the conveying belt (6).

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