Right-angle turning conveying device

Abstract

The invention discloses a right-angle turning conveying device, relates to the technical field of material conveying, and solves the problem that rollers on an existing roller type turning conveying line with a temporary storage function are prone to being abraded with materials. The conveying device comprises a conveying base, and a curve is formed on the conveying base; the conveying units comprise at least two first conveying units and a plurality of second conveying units, the first conveying units are located at the two ends of the bend respectively, the conveying directions of the first conveying units are perpendicular to each other, and the second conveying units are distributed in the portion, between the two first conveying units, of the bend; the transmission mechanism is in transmission connection with the conveying units; and the power and free mechanism comprises an extrusion piece used for making friction contact with the end face of the roller and an elastic piece used for applying abutting force to the extrusion piece, and the abutting force applied to the extrusion piece by the elastic piece is adjustable. The conveying device can have a certain buffering effect on materials under the non-stop condition, large abrasion cannot be caused to the material disc and the roller, and the service life of the conveying device can be prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of material conveying, in particular to a right-angle turning conveying device. Background Art

[0002] During the production process, heavy-loaded products need to be transported to various workstations using conveyor lines. Products are usually placed in pallets. When products are transported from one conveyor line to another perpendicular conveyor line, a turning conveyor line is required. In the prior art, turning conveyor lines usually use belt conveyors or roller conveyors. Among them, belt conveyors are difficult to carry products with relatively large weight. Therefore, heavy-loaded products are usually transported using roller conveyors.

[0003] When a pallet loaded with products reaches the roller turning conveyor line, it is usually stopped by a baffle so that the products in the pallet can be taken out and placed in the corresponding work station. When the pallet loaded with products is intercepted, the roller turning conveyor line will not stop running, and the rollers on the roller turning conveyor line will continue to rotate. Therefore, the pallet is in a stopped state, and the rollers will rotate relative to the pallet. Over time, the rollers or pallets will be worn, affecting the service life of the pallet and rollers. If the pallet loaded with products is stopped by stopping, it is more troublesome. Each pallet needs to be stopped once, which will burden the control system and affect the timely delivery of the product. Summary of the invention

[0004] The purpose of the present invention is to solve the above problems and to design a right-angle turning conveyor device to solve the problem that the rollers on the existing roller turning conveyor line with a buffering function are easily worn by the materials.

[0005] The technical solution of the present invention to achieve the above-mentioned purpose is a right-angle turning conveying device, comprising: A conveying base, wherein a curve is formed on the conveying base; A plurality of conveying units, the conveying units comprising at least two first conveying units respectively located at two ends of the curve and conveying directions perpendicular to each other and a plurality of second conveying units distributed in the curve between the two first conveying units, the conveying units comprising a rotating shaft rotatably connected to the conveying base and two rollers rotatably connected to two ends of the rotating shaft; A transmission mechanism, wherein the transmission mechanism is respectively connected to the plurality of transmission units for driving the transmission units to rotate; The accumulating mechanism is arranged at both ends of the first conveying unit and at one end of the second conveying unit close to the outer side of the curve, and the accumulating mechanism can rotate together with the rotating shaft. The accumulating mechanism includes an extrusion sheet for frictionally contacting the end surface of the roller and an elastic member for applying a clamping force to the extrusion sheet.

[0006] Furthermore, bearing seats are provided at both ends of the rotating shaft, and the bearing seats are fixedly installed on both sides of the curve on the conveying base, and the two ends of the rotating shaft are rotatably connected to the two bearing seats respectively.

[0007] Furthermore, a first bevel gear is provided on one end of the rotating shaft close to the outer side of the curve, and the transmission mechanism includes a transmission shaft and a second bevel gear. There are multiple second bevel gears, which correspond one by one to the first bevel gears on the first transmission unit and the second transmission unit respectively, and the second bevel gear is meshed with the first bevel gear.

[0008] Furthermore, the accumulation mechanism also includes an adjusting member and a friction disk. The elastic member is a spring. The spring is located between the adjusting member and the friction disk and is sleeved on the rotating shaft. The friction disk is clamped with the extrusion member and the rotating shaft, and the adjusting member is clamped with the rotating shaft.

[0009] Furthermore, at least two stop pins are arranged on the rotating shaft, and the two stop pins are respectively engaged with the friction disk and the adjusting member.

[0010] Furthermore, at least one adjusting portion is formed on the side of the adjusting member facing away from the spring, and the adjusting portion extends circumferentially along the end surface of the adjusting member. The distance from one end of the adjusting portion to the other end from the spring gradually becomes farther, and the stop pin can be clamped at different positions between one end and the other end of the adjusting portion, and the pressing force applied by the spring to the extrusion sheet is adjustable.

[0011] Furthermore, a plurality of adjustment holes or adjustment slots are distributed from one end to the other end of the adjustment portion.

[0012] Furthermore, a stop portion is formed on a protrusion on one side of the friction disc close to the extrusion piece, and a groove matched with the stop portion is provided on one side of the extrusion sheet close to the extrusion piece.

[0013] Furthermore, a guard plate for shielding the conveying unit and the transmission mechanism is provided on the conveying base, and the guard plate has a plurality of holes, and the holes correspond to the rollers one by one, and the rollers are at least partially exposed outside the holes.

[0014] Furthermore, it also includes a support base, which is fixedly installed on the bottom of the conveying base, and the bottom of the support base is provided with a height adjustment foot.

[0015] Compared with the prior art, its beneficial effects are as follows: In the present invention, the first conveying unit and the second conveying unit are driven to rotate together by a transmission mechanism. Under the action of an elastic member, the pressing member will be in frictional contact with the end face of the roller. The pressing member will rotate together with the rotation axis of the conveying unit, and the roller will rotate together with the pressing member under the action of static friction. After the tray containing the material is conveyed to the right-angle turning conveying device, static friction (i.e., the force that prevents the roller from rotating) will be generated between the tray containing the material and the roller. If this static friction can overcome the static friction between the roller and the pressing member, the roller will stop rotating, and the tray containing the material will not be conveyed backward, which can reduce the friction between the roller and the tray and reduce wear. Once the material in the tray is taken away, the pressure exerted by the tray on the roller will decrease and cannot overcome the static friction between the roller and the pressing member. At this time, the roller will rotate and convey the tray backward in a timely manner. Therefore, this conveying device can have a certain buffering effect on the material without stopping the machine, and at the same time will not cause significant wear to the tray and the roller, which helps to improve the service life of the conveying device and also helps to protect the product or the tray. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the overall structural schematic diagram of the right-angle turning conveying device in the present invention; Figure 2 is the structural schematic diagram of the right-angle turning conveying device when the protective cover is removed; Figure 3 is the structural schematic diagram of the right-angle turning conveying device when the protective cover and the water tank are removed; Figure 4 is the installation structural schematic diagram of the inner tank and the bullet recovery mechanism in the right-angle turning conveying device; Figure 5 is the structural schematic diagram of the inner tank in the right-angle turning conveying device; Figure 6 is the overall structural schematic diagram of the bullet recovery mechanism in the right-angle turning conveying device; Figure 7 is the structural schematic diagram of the bullet recovery mechanism from another perspective; Figure 8 is the structural schematic diagram of the bullet recovery mechanism when the front part of the housing is removed.

[0017] In the figure, 1 is a conveying base; 2 is a support base; 3 is a height adjustment foot; 4 is a first conveying unit; 41 is a roller; 42 is a rotating shaft; 43 is a first bevel gear; 5 is a second conveying unit; 6 is a transmission mechanism; 61 is a transmission shaft; 62 is a second bevel gear; 63 is a third bevel gear; 7 is a bearing seat; 8 is an accumulation mechanism; 81 is a friction plate; 811 is a card slot; 82 is a friction disc; 821 is a stop portion; 83 is a spring; 84 is an adjusting member; 841 is an adjusting portion; 8411 is an adjusting groove; 9 is a stop pin; 10 is a guard plate. Detailed implementation manner

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0019] Figure 1 - Figure 2 As shown, a preferred embodiment of the present invention provides a right-angle turning conveying device, which is mainly used for the docking of two perpendicular conveying lines, and the material will be conveyed at a right angle through this conveying device to another conveying line. It mainly includes components such as a conveying base 1, a support base 2, a transmission mechanism 6, an accumulation mechanism 8, two first conveying units 4 and several second conveying units 5.

[0020] Specifically, referring to Figure 2 , a bend is formed on the conveying base 1, and the curvature of the bend is the radian of a quarter circle. The two first conveying units 4 are respectively located at the head and tail ends of the bend, and the conveying directions of these two first conveying units 4 are perpendicular to each other. Several second conveying units 5 are distributed between the two first conveying units 4 on the bend, and the several second conveying units 5 are evenly distributed according to the bend radian between the two first conveying units 4. The material in the incoming direction is conveyed to the conveying device through one of the first conveying units 4, and then after being turned and conveyed by several second conveying units 5, it is conveyed out through the other first conveying unit 4.

[0021] Three support bases 2 are installed at the bottom of the conveying base 1, which are respectively used to support the two ends and the middle position of the conveying base 1. Two height adjustment feet 3 are installed at the bottom of each support base 2, which are used to adjust the overall height of the conveying device so as to better dock with the conveying line.

[0022] As Figure 4 、 Figure 5As shown in the figure, the structures of the first conveying unit 4 and the second conveying unit 5 are basically the same. It is mainly composed of a rotating shaft 42 and two rollers 41. A number of bearing seats 7 are distributed on both the inner and outer sides of the bend on the conveying base 1. The two ends of the rotating shaft 42 are rotatably connected to the corresponding bearing seats 7 through bearings, and the two rollers 41 are rotatably connected to the two ends of the rotating shaft 42 through bearings. When the rotating shaft 42 rotates at this time, the two rollers 41 may rotate together or may not rotate.

[0023] The accumulation mechanism 8 is used to control the rollers 41 to rotate together with the rotating shaft 42. An accumulation mechanism 8 is provided at each end of the first conveying unit 4, and an accumulation mechanism 8 is provided at one end of the second conveying unit 5 close to the outer side of the bend.

[0024] Continue to refer to Figure 4 、 Figure 5 This accumulation mechanism 8 is mainly composed of an adjusting member 84, a spring 83, a friction disk 82 and an extrusion member. The extrusion member is a friction plate, which is in frictional contact with the end face of the roller 41.

[0025] Refer to Figure 4 - Figure 7 As shown in the figure, the friction disk 82 has a through hole in the middle, and the rotating shaft 42 passes through the through hole. Two stop pins 9 are welded to the position of the rotating shaft 42 for installing the friction disk 82. The friction disk 82 has two jacks 822, and the stop pins 9 are connected to the jacks 822. When the rotating shaft 42 rotates, it will drive the friction disk 82 to rotate together. The jack is a strip-shaped hole so that the friction disk 82 can move axially relative to the rotating shaft 42 by an appropriate distance.

[0026] As Figure 6 shown in the figure, two stop portions 821 are formed by convexities on one side of the friction disk 82 in contact with the friction plate 81. At the same time, two corresponding slots 811 are provided on one side of the friction plate 81 in contact with the friction disk 82. The stop portions 821 on the friction disk 82 will be inserted into the slots 811 on the friction plate 81. Therefore, when the friction disk 82 rotates together with the rotating shaft 42, it will drive the friction plate 81 to rotate together, and then drive the roller 41 in frictional contact with the friction plate 81 to rotate together, and convey the material backward.

[0027] The adjusting member 84 and the spring 83 are both sleeved on the rotating shaft 42. The spring 83 is located between the adjusting member 84 and the friction disk 82. The spring 83 will apply a certain tightening force to the friction disk 82, so that the friction plate 81 is in close contact with the end face of the roller 41. The tightening force of the spring 83 is adjustable, and it is mainly adjusted by the adjusting member 84.

[0028] As Figure 8As shown, two adjusting portions 841 are formed at one end of the adjusting member 84 away from the spring 83. These two adjusting portions 841 are symmetrically distributed about the center and each occupies half of the circumferential of the end face of the adjusting member 84. In this embodiment, the adjusting portion 841 is composed of a plurality of adjusting grooves 8411. The plurality of adjusting grooves 8411 are evenly distributed along the semi - circumference and are distributed in a spiral - stepped manner, that is, the position of the adjusting groove 8411 at one end of the semi - circular shaft is farther and farther away from the spring 83 compared to the position of the adjusting groove 8411 at the other end.

[0029] Two stop pins 9 are welded at the position of the rotating shaft 42 for installing the adjusting member 84. These two stop pins 9 are symmetrically distributed and respectively correspond to the two adjusting portions 841. Under the action of the spring 83, the stop pin 9 will be engaged with a certain adjusting groove 8411 on the adjusting portion 841. By rotating the adjusting member 84, the stop pin 9 can be engaged with the adjusting grooves 8411 at different positions on the adjusting portion 841.

[0030] In other technical solutions, the adjusting grooves 8411 can also be replaced with adjusting holes. In this case, the stop pin 9 cannot be directly welded to the rotating shaft 42. The stop pin 9 can be inserted and fixedly connected to the rotating shaft 42 so that the stop pin 9 can be inserted into the adjusting holes at different positions.

[0031] When the rotating shaft 42 rotates, the adjusting member 84 will be driven to rotate together under the cooperation of the two stop pins 9 and the adjusting grooves 8411. After the stop pin 9 is engaged into the adjusting grooves 8411 at different positions, since the axial position of the stop pin 9 relative to the rotating shaft 42 remains unchanged, the adjusting member 84 will move axially relative to the rotating shaft 42, gradually approaching the friction disc 82, and then compressing the spring 83, so that the pressing force applied by the spring 83 to the friction disc 82 is greater. By the above method, the pressing force applied by the spring 83 to the friction disc 82 (which can also be said to be the friction plate 81) can be adjusted, and thus the frictional force between the friction plate 81 and the roller 41 can be adjusted.

[0032] The above - mentioned spring 83 can also be replaced with other elastic members with high elasticity.

[0033] Such as Figure 2 、 Figure 3 As shown, the transmission mechanism 6 is arranged on one side of the conveying base 1 close to the outer side of the bend. The transmission mechanism 6 is composed of a transmission shaft 61 and a second bevel gear 62. The number of transmission shafts 61 is determined by the number of the second conveying units 5. Since the angles between several second conveying units 5 are different from each other, in order to cooperate with them, the number of transmission shafts 61 also needs to be adjusted.

[0034] In this embodiment, four transmission shafts 61 are used, and a corresponding number of second bevel gears 62 are set on each transmission shaft 61. The second bevel gears 62 are fixedly mounted on the transmission shaft 61. At the same time, a first bevel gear 43 is installed on the end of the rotating shaft 42 of each transmission unit close to the outer side of the curve. The first bevel gear 43 is meshed with the corresponding second bevel gear 62 to drive the rotating shaft 42 to rotate.

[0035] A third bevel gear 63 is also provided between two adjacent transmission shafts 61 and at the ends. The two third bevel gears 63 at the adjacent ends of the two adjacent transmission shafts 61 will mesh with the third bevel gear 63 placed horizontally between the two, so as to realize the transmission of power between the two transmission shafts 61. When one transmission shaft 61 rotates, it will drive the other transmission shafts 61 to rotate synchronously, and at the same time drive the rotating shaft 42 on the transmission unit to rotate. When the rotating shaft 42 rotates, under the action of the accumulation mechanism 8, it will drive the roller 41 to rotate together.

[0036] In this embodiment, the two ends of the conveying device will be connected to the incoming material conveying line and the outgoing material conveying line respectively, and the transmission shaft 61 close to one end of the conveying device will be connected to the driving device on the corresponding conveying line, through which the transmission shaft 61 is driven to rotate, thereby realizing power transmission.

[0037] In other technical solutions, a gear box may be installed on one of the transmission shafts 61, and then the gear box may be connected to the motor to drive the transmission shaft 61 to rotate, thereby realizing power transmission and driving the entire transmission device to work.

[0038] The material tray on the conveyor line in the incoming material direction is filled with material. When the material tray filled with material is transferred from the incoming material conveyor line to the conveying device, under the action of gravity, the material tray filled with material will apply a large pressure to the roller 41, and there will be static friction between the material tray and the roller 41, and the static friction will hinder the rotation of the roller 41. At this time, when the rotating shaft 42 rotates, it will drive the adjusting member 84, the friction disc 82 and the friction plate 81 to rotate together. The friction plate 81 is in close contact with the end face of the roller 41 under the action of the spring 83, and friction will be generated between the friction plate 81 and the roller 41.

[0039] Due to the large static friction force between the roller 41 and the tray containing the material, if the static friction force between the friction plate 81 and the roller 41 is less than the static friction force between the roller 41 and the tray containing the material, the friction plate 81 will rotate together with the rotating shaft 42, while the roller 41 will not rotate, and the roller 41 and the tray will be relatively stationary. At this time, the tray containing the material will not be conveyed backward; if the friction force between the friction plate 81 and the roller 41 is large enough to overcome the static friction force between the roller 41 and the tray containing the material, during the process of the friction plate 81 rotating together with the rotating shaft 42, it will drive the roller 41 to rotate together. The roller 41 rotates relative to the tray, so the tray containing the material can be conveyed backward.

[0040] In this embodiment, the friction force between the friction plate 81 and the roller 41 is less than the friction force between the roller 41 and the tray containing the material. Therefore, when the tray containing the material reaches this position, the conveying device continues to work normally, while the tray containing the material will not continue to be conveyed backward. When the material in the tray is taken away, the pressure applied to the roller 41 becomes smaller, and the friction force between the roller 41 and the tray also becomes smaller. Therefore, the roller 41 will rotate together with the rotating shaft 42 under the action of the static friction force of the friction plate 81, and convey the tray backward.

[0041] Due to the different rotation speeds of the rollers 41 on the inner and outer sides of the bend, and there is no accumulation mechanism 8 provided at one end of the second conveying unit 5 close to the inner side of the bend, so the roller 41 at this place will not rotate following. The roller 41 at one end of the second conveying unit 5 close to the outer side of the bend will rotate following. In this way, the tray will turn a 90° bend during the conveying process and continue to be conveyed backward. And the roller 41 at one end of the second conveying unit 5 close to the inner side of the bend will rotate as the tray moves, and there will be no sliding friction between them, but rolling friction, with a smaller friction force, so the wear is also small.

[0042] As Figure 1 shown, multiple guard plates 10 are also installed on the upper part of the conveying base 1. The guard plates 10 are distributed along the bend and are used to shield the first conveying unit 4, the second conveying unit 5 and the transmission mechanism 6. Each guard plate 10 has multiple holes, and the position of each hole corresponds to the corresponding roller 41 one by one. A part of the upper half of the roller 41 protrudes from the hole and is exposed outside the guard plate 10, so that the tray can be conveyed. The guard plate 10 can protect the internal transmission structures such as gears and prevent external sundries from entering between the gears and affecting the gear transmission.

[0043] The above technical solutions only reflect the preferred technical solutions of the technical solutions of the present invention. Some changes that those skilled in the art may make to some parts thereof all reflect the principles of the present invention and fall within the protection scope of the present invention.

Claims

1. A right-angle turning conveying device, characterized in that: include: A conveying base (1), wherein a curve is formed on the conveying base (1); A plurality of conveying units, the conveying units comprising at least two first conveying units (4) respectively located at two ends of a curve and with conveying directions perpendicular to each other, and a plurality of second conveying units (5) distributed in the curve between the two first conveying units (4), the conveying units comprising a rotating shaft (42) rotatably connected to the conveying base (1) and two rollers (41) respectively rotatably connected to two ends of the rotating shaft (42); A transmission mechanism (6), wherein the transmission mechanism (6) is respectively connected to the plurality of transmission units for driving the transmission units to rotate; An accumulation mechanism (8), wherein the accumulation mechanism (8) is arranged at both ends of the first conveying unit (4) and at one end of the second conveying unit (5) close to the outer side of the curve, and the accumulation mechanism (8) can rotate together with the rotating shaft (42), and the accumulation mechanism (8) includes an extrusion sheet for frictionally contacting the end surface of the roller (41) and an elastic member for applying a pressing force to the extrusion sheet.

2. The right-angle turn conveyor according to claim 1, characterized in that: Both ends of the rotating shaft (42) are provided with bearing seats (7), and the bearing seats (7) are fixedly mounted on both sides of the curve on the conveying base (1), and the two ends of the rotating shaft (42) are respectively rotatably connected to the two bearing seats (7).

3. The right-angle turn conveyor according to claim 1, characterized in that: A first bevel gear (43) is arranged at one end of the rotating shaft (42) close to the outer side of the curve. The transmission mechanism (6) comprises a transmission shaft (61) and a second bevel gear (62). A plurality of second bevel gears (62) are provided, and correspond one to one with the first bevel gears (43) on the first transmission unit (4) and the second transmission unit (5). The second bevel gears (62) are meshed with the first bevel gears (43).

4. The right-angle turn conveyor according to claim 1, characterized in that: The accumulation mechanism (8) also includes an adjusting member (84) and a friction disk (82); the elastic member is a spring (83); the spring (83) is located between the adjusting member (84) and the friction disk (82), and is sleeved on the rotating shaft (42); the friction disk (82) is engaged with the extrusion member and the rotating shaft (42); and the adjusting member (84) is engaged with the rotating shaft (42).

5. The right-angle turn conveyor according to claim 4, characterized in that: At least two stop pins (9) are arranged on the rotating shaft (42), and the two stop pins (9) are respectively engaged with the friction disk (82) and the adjusting member (84).

6. The right-angle turning conveyor according to claim 5, characterized in that: At least one adjusting portion (841) is formed on the side of the adjusting member (84) facing away from the spring (83), and the adjusting portion (841) extends circumferentially along the end surface of the adjusting member (84). The distance from one end of the adjusting portion (841) to the other end gradually becomes farther from the spring (83). The stop pin (9) can be clamped at different positions between one end and the other end of the adjusting portion (841), and the pressing force applied by the spring (83) to the extrusion sheet is adjustable.

7. The right-angle turning conveyor according to claim 6, characterized in that: A plurality of adjustment holes or adjustment slots (8411) are distributed from one end to the other end of the adjustment portion (841).

8. The right-angle turn conveyor according to claim 4, characterized in that: A stop portion (821) is formed on a protrusion on one side of the friction disc (82) close to the extrusion piece, and a groove (811) matching with the stop portion (821) is provided on one side of the extrusion sheet close to the extrusion piece.

9. The right-angle turn conveyor according to claim 1, characterized in that: The conveying base (1) is provided with a protective plate (10) for shielding the conveying unit and the transmission mechanism (6); the protective plate (10) has a plurality of holes, the holes correspond one to one with the rollers (41); and the rollers (41) are at least partially exposed outside the holes.

10. The right-angle turn conveyor according to claim 9, characterized in that: It also comprises a support base (2), wherein the support base (2) is fixedly mounted on the bottom of the conveying base (1), and a height-adjusting foot (3) is provided at the bottom of the support base (2).

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