Pipe feeding device

Abstract

The utility model discloses a pipe feeding device which comprises a conveying frame, a pipe conveying mechanism is arranged on the conveying frame, a feeding frame is connected to one side of the conveying frame in a sliding mode, a pipe lifting mechanism is arranged at the front end of the other side of the conveying frame and comprises a jacking air cylinder and an inverted-L-shaped pushing frame, the jacking air cylinder is fixed to the conveying frame, and the inverted-L-shaped pushing frame is fixed to the conveying frame. A telescopic rod of the jacking air cylinder is connected with the horizontal portion of the pushing frame, the back side of the vertical portion of the pushing frame is slidably connected with the conveying frame, and a feeding groove is formed in the front end of the feeding frame. The pipe feeding device has the advantages of being convenient and fast in feeding process, safe, reliable, long in service life and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe processing, in particular to a pipe feeding device. Background Art

[0002] Steel pipes need to be cut during processing to facilitate use in different occasions. Nowadays, pipe cutting machines are used to cut steel pipes. When cutting, the steel pipes need to be fed into the feed port of the cutting machine. In the prior art, simple mechanical equipment is used to manually assist in feeding, which has low feeding efficiency and high labor intensity.

[0003] Patent 202020393062.4 discloses a simple pipe feeding device, including a material rack, on which a plurality of feeding racks are slidably connected, and the feeding racks can move along the length direction of the material rack. The material rack is also connected to an oblique push mechanism corresponding to the feeding rack, and the oblique push mechanism includes a linear drive fixedly connected to the material rack, and the linear drive is connected to a push rod extending in the direction of the feeding rack and capable of reciprocating linear movement, and the end of the push rod extending outward is fixedly connected to the push rack, and the push rack is slidably connected to the material rack. This patent realizes efficient feeding of pipes of different specifications and reduces labor intensity through the combined setting of the oblique push mechanism and the feeding rack. In this patent, the pipes are pushed from the conveying rack to the feeding rack by the oblique push mechanism to achieve pipe separation. This pipe feeding device has the following problems: the oblique push cylinder lifts the pipe, causing the pipe to slide along the edge of the V-shaped feeding trough to the bottom of the feeding trough. When the pipe reaches the bottom, it will collide with the limit block, which will cause damage to the limit block in the long run. Utility Model Content

[0004] The utility model aims to provide a pipe feeding device to solve the problems existing in the prior art.

[0005] The purpose of the utility model is achieved as follows: a pipe feeding device comprises a conveying frame, a pipe conveying mechanism is arranged on the conveying frame, a feeding frame is slidably connected to one side of the conveying frame, a pipe lifting mechanism is arranged at the front end of the other side of the conveying frame, the pipe lifting mechanism comprises a lifting cylinder and an inverted L-shaped pushing frame, the lifting cylinder is fixed on the conveying frame, the telescopic rod of the lifting cylinder is connected to the horizontal part of the pushing frame, the back side of the vertical part of the pushing frame is slidably connected to the conveying frame, and a feeding trough is arranged at the front end of the feeding frame.

[0006] The pipe feeding device of the utility model has the following feeding process: first, the conveying rack conveys the pipe from the rear end to the front end of the conveying rack (the conveying rack is in a reset state at this time), and then the first pipe is blocked by the rear side of the feeding trough of the conveying rack, the pipe conveying mechanism of the conveying rack stops working, the lifting cylinder lifts the first pipe, and then the conveying rack retreats to an appropriate position, the lifting cylinder slowly descends until it is reset, and the first pipe falls into the feeding trough of the conveying rack, and then the conveying rack moves forward until the pipe is fed into the pipe cutting machine.

[0007] As a further improvement of the utility model, the feed rack includes a feed plate and a movable stop block hinged at the front end of the feed plate, the front end of the feed plate includes a vertical stop edge and a lower bevel connected to the front side of the stop edge, the feed trough is composed of the lower bevel and the movable stop block, the bottom of the movable stop block is arc-shaped and meshes with the guide rack, and the rear side of the guide rack is connected to the guide cylinder. The setting of the stop edge can well play a role in stopping and positioning the pipes transported to the front end of the conveyor rack, and facilitate the subsequent operation of the pipe lifting mechanism. The provision of movable limit blocks and the like enables the feed trough to stably hold the pipe during the forward feeding process of the feed rack. After reaching the feeding position, the pipe cutter material support lifts the pipe, the guide cylinder telescopic rod retracts, and pulls the movable rack to move backward, thereby driving the movable support plate to rotate synchronously, so that the upper surface of the movable limit block is horizontal, and then the feed rack moves backward again, eliminating the movement interference caused by insufficient lifting height of the pipe cutter material support when the height from the center of the pipe cutter chuck to the upper surface of the fuselage guide rail is low.

[0008] As a further improvement of the present invention, the feeding trough may also adopt a horizontal U-shaped trough, which has a simpler structure and saves costs compared to a V-shaped feeding trough.

[0009] As a further improvement of the utility model, a pipe separation plate is provided on the horizontal portion of the pushing frame, and limiting protrusions are provided on both sides of the pipe separation plate, which can limit the round pipe and prevent the pipe from rolling down.

[0010] As a further improvement of the utility model, a synchronization shaft is provided under the conveying frame, on which a synchronization gear is installed, and the synchronization gear is meshed and connected with a synchronization rack arranged at the rear side of the vertical part of the pushing frame to ensure the synchronization of the lifting movement of each pushing frame.

[0011] As a further improvement of the utility model, a feeding drive shaft is provided under the feeding rack, the feeding drive shaft is connected to the feeding drive device, a feeding gear is installed on the feeding drive shaft, and the feeding gear is meshed and connected with the feeding rack arranged at the bottom of the feeding rack, so that the feeding drive device can effectively drive the feeding rack to move forward and backward.

[0012] As a further improvement of the present invention, the pipe conveying mechanism includes a conveying drive shaft arranged under the conveying frame, the conveying drive shaft is connected to the conveying drive device, a conveying sprocket is installed on the conveying drive shaft, the conveying sprocket is meshed and connected with a conveying chain installed on the conveying frame, and the pipe conveying mechanism is used to realize the forward and backward conveyance of the pipe, saving manpower.

[0013] As a further improvement of the utility model, a polyurethane pad is provided on the horizontal portion of the push rack and the upper surface of the feeding trough to prevent the pipe from being damaged by a rigid collision when the pipe is placed in the feeding trough.

[0014] As a further improvement of the utility model, a pipe sensing switch and a feeding limit switch are provided at the front end of the feeding rack, which are respectively used to sense whether the pipe is placed in the feeding trough and whether the feeding rack reaches the feeding position.

[0015] As a further improvement of the utility model, it also includes a material preparation rack, which is arranged near the rear end of the conveying rack to facilitate the preparation of pipes. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of an embodiment of a pipe feeding device of the utility model.

[0017] Figure 2 for Figure 1 A three-dimensional schematic diagram of the pipe feeding device shown in another angle.

[0018] Figure 3 for Figure 1 Enlarged view of point K in the middle.

[0019] Figure 4 for Figure 1 Enlarged view of point P in the middle.

[0020] Figure 5-8 This is a schematic diagram of the pipe separation process of another embodiment of the pipe feeding device of the utility model.

[0021] Among them, 1 conveying rack, 2 feeding rack, 3 lifting cylinder, 4 pushing rack, 5 pipe separation plate, 6 synchronous shaft, 7 synchronous gear, 8 synchronous rack, 9 conveying drive shaft, 10 conveying drive device, 11 conveying chain, 12 feeding drive shaft, 13 feeding drive device, 14 feeding rack, 15 feeding plate, 16 movable limit block, 17 guide rack, 18 guide cylinder, 19 polyurethane pad, 20 pipe induction switch, 21 feeding limit switch, 22 preparation rack, 23 rack cover, 24 horizontal U-shaped groove. DETAILED DESCRIPTION

[0022] Figure 1-4 A specific embodiment of the utility model is given, and it should be noted that: Figure 1 and Figure 2 In the three-dimensional schematic diagram, some of the feeding racks 2 of the pipe feeding device are in an extended state, and some are in a reset state, just for the convenience of displaying the structure. In actual use, the states of all the feeding racks 2 remain consistent.

[0023] like Figure 1-4 The pipe feeding device shown comprises a conveying frame 1, on which a pipe conveying mechanism is arranged. A feeding frame 2 is slidably connected to one side of the conveying frame 1, and a pipe lifting mechanism is arranged at the front end of the other side of the conveying frame 1. The pipe lifting mechanism comprises a lifting cylinder 3 and an inverted L-shaped pushing frame 4. The lifting cylinder 3 is fixed on the conveying frame 1, and the telescopic rod of the lifting cylinder 3 is connected to the horizontal part of the pushing frame 4. The back side of the vertical part of the pushing frame 4 is slidably connected to the conveying frame 1. A pipe separation plate 5 is arranged on the horizontal part of the pushing frame 4, and limiting protrusions are arranged on both sides of the pipe separation plate 5, which can limit the circular pipe and prevent the pipe from rolling down. A synchronous shaft 6 is arranged below the conveying frame 1, and a synchronous gear 7 is installed on the synchronous shaft 6. The synchronous gear 7 is meshed and connected with a synchronous rack 8 arranged on the rear side of the vertical part of the pushing frame 4 to ensure the synchronization of the lifting movement of each pushing frame 4.

[0024] The pipe conveying mechanism includes a conveying drive shaft 9 arranged under the conveying frame 1, the conveying drive shaft 9 is connected to the conveying drive device 10, a conveying sprocket is installed on the conveying drive shaft 9, and the conveying sprocket is meshed and connected with a conveying chain 11 installed on the conveying frame 1. The pipe conveying mechanism realizes the front and rear conveyance of the pipe, saving manpower.

[0025] A feeding drive shaft 12 is provided under the feeding rack 2, and the feeding drive shaft 12 is connected to a feeding drive device 13. A feeding gear is installed on the feeding drive shaft 12, and the feeding gear is meshed and connected with a feeding rack 14 arranged at the bottom of the feeding rack 2, so that the feeding drive device 13 can effectively drive the feeding rack 2 to move forward and backward.

[0026] A feeding trough is provided at the front end of the feeding rack 2. Figure 3-4As shown, the feed rack 2 includes a feed plate 15 and a movable stopper 16 hinged at the front end of the feed plate 15. The front end of the feed plate 15 includes a vertical stop edge and a lower bevel connected to the front side of the stop edge. The feed trough is composed of the lower bevel and the movable stopper 16. The bottom of the movable stopper 16 is arc-shaped and meshes with the guide rack 17. The rear side of the guide rack 17 is connected to the guide cylinder 18. The setting of the stop edge can well stop and position the pipes transported to the front end of the conveyor rack 1, which is convenient for the subsequent pipe lifting mechanism to work. The setting of the movable stop block 16 and the like enables the feed rack 2 to stably hold the pipe in the process of feeding forward. After reaching the feeding position, the pipe cutter material support lifts the pipe, and the telescopic rod of the guide cylinder 18 retracts, pulling the movable rack to move backward, thereby driving the movable support plate to rotate synchronously, so that the upper surface of the movable stop block 16 is horizontal, and then the feed rack 2 moves backward again, eliminating the movement interference caused by the insufficient lifting height of the pipe cutter material support when the height from the center of the pipe cutter chuck to the upper surface of the fuselage guide rail is low. A rack cover plate 23 is provided on the outside of the guide rack 17 to prevent the meshing working position of the guide rack 17 and the movable stop block 16 from being exposed, ensuring safety in use.

[0027] The horizontal part of the push rack 4 and the upper surface of the feeding trough are both provided with a polyurethane pad 19 to prevent the pipe from being damaged by a rigid collision when the pipe is placed in the feeding trough. The front end of the feeding rack 2 is provided with a pipe sensing switch 20 and a feeding limit switch 21, which are used to sense whether the pipe is placed in the feeding trough and whether the feeding rack 2 reaches the feeding position.

[0028] In this embodiment, a material preparation rack 22 is further provided near the rear end of the conveying rack 1 to facilitate the preparation of pipe materials.

[0029] Figure 5-8 Another embodiment of the present invention is provided. Figure 1-4 The difference between the embodiments shown mainly lies in the structure of the feeding trough. In this embodiment, the feeding trough adopts a horizontal U-shaped trough 24, which is simpler in structure and saves costs compared to a V-shaped feeding trough. The feeding process of the pipe feeding device of this embodiment is as follows:

[0030] (1) The conveyor rack 1 conveys the pipe from the rear end to the front end (the feed rack 2 is in the reset state at this time), and then the first pipe is blocked by the stop edge of the feed plate 15 of the feed rack 2, and the pipe conveying mechanism of the conveyor rack 1 stops working.

[0031] (2) The lifting cylinder 3 lifts up the first pipe.

[0032] (3) The feeding rack 2 moves back to an appropriate position.

[0033] (4) The lifting cylinder 3 slowly descends until it returns to its original position, and the first pipe falls into the feeding trough of the feeding rack 2.

[0034] (5) The feeding rack 2 moves forward until the pipe is fed into the pipe cutting machine.

[0035] It should be noted that the above-mentioned pipe feeding device is also applicable to Figure 1-4 The embodiment shown.

[0036] The present utility model is not limited to the above-mentioned embodiments. On the basis of the technical solution disclosed in the present utility model, technicians in this field can make some substitutions and deformations to some technical features therein according to the disclosed technical content without creative labor, and these substitutions and deformations are all within the protection scope of the present utility model.

Claims

1. A pipe feeding device, comprising a conveying frame, on which a pipe conveying mechanism is provided, characterized in that: A feeding rack is slidably connected to one side of the conveying rack, and a pipe lifting mechanism is provided at the front end of the other side of the conveying rack. The pipe lifting mechanism includes a lifting cylinder and an inverted L-shaped pushing rack. The lifting cylinder is fixed on the conveying rack, and the telescopic rod of the lifting cylinder is connected to the horizontal part of the pushing rack. The back side of the vertical part of the pushing rack is slidably connected to the conveying rack, and a feeding trough is provided at the front end of the feeding rack.

2. The pipe feeding device according to claim 1, characterized in that: The feeding rack includes a feeding plate and a movable limit block hinged at the front end of the feeding plate, the front end of the feeding plate includes a vertical stop edge and a lower bevel connected to the front side of the stop edge, the feeding trough is composed of the lower bevel and the movable limit block, the bottom of the movable limit block is arc-shaped and meshes with the guide rack, and the rear side of the guide rack is connected to the guide cylinder.

3. The pipe feeding device according to claim 1, characterized in that: The feeding trough is a horizontal U-shaped trough.

4. The pipe feeding device according to claim 1, characterized in that: A pipe separation plate is provided on the horizontal portion of the pushing rack, and limiting protrusions are provided on both sides of the pipe separation plate.

5. The pipe feeding device according to claim 1, characterized in that: A synchronous shaft is provided below the conveying frame, a synchronous gear is installed on the synchronous shaft, and the synchronous gear is meshed and connected with a synchronous rack arranged at the rear side of the vertical part of the pushing frame.

6. The pipe feeding device according to claim 1, characterized in that: A feeding drive shaft is provided below the feeding rack, the feeding drive shaft is connected to the feeding drive device, a feeding gear is installed on the feeding drive shaft, and the feeding gear is meshed and connected with a feeding rack arranged at the bottom of the feeding rack.

7. The pipe feeding device according to claim 1, characterized in that: The pipe conveying mechanism comprises a conveying drive shaft arranged below the conveying frame, the conveying drive shaft is connected to the conveying drive device, a conveying sprocket is installed on the conveying drive shaft, and the conveying sprocket is meshedly connected with a conveying chain installed on the conveying frame.

8. The pipe feeding device according to any one of claims 1 to 7, characterized in that: The horizontal part of the pushing rack and the upper surface of the feeding trough are both provided with polyurethane pads.

9. The pipe feeding device according to any one of claims 1 to 7, characterized in that: The front end of the feeding rack is provided with a pipe induction switch and a feeding limit switch.

10. The pipe feeding device according to any one of claims 1 to 7, characterized in that: It also includes a material preparation rack, which is arranged at a position close to the rear end of the conveying rack.

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