Plastic pipeline flaring machine

Abstract

The utility model relates to the technical field of plastic pipeline machining, and discloses a plastic pipeline flaring machine which comprises a workbench, a movable base is slidably connected to the upper end face of the workbench, a flaring piece is fixedly connected to one side of the movable base, and a clamping piece is fixedly connected to the side, away from the movable base, of the upper end face of the workbench. A U-shaped seat is fixedly connected to the center of the upper end face of the workbench, nozzles are fixedly connected to the interior of the U-shaped seat in an up-down symmetrical mode, a lubricant can be synchronously and evenly sprayed to the surface of a flaring piece, the surface of the flaring piece is lubricated, and compared with the mode that the lubricant is manually sprayed in the prior art, manual operation of workers is not needed; the situation that the friction force between the flaring piece and the pipeline and the straight-in resistance of the flaring piece are increased due to the fact that the surface of the flaring piece is not coated with a lubricating agent due to manual forgetting is effectively avoided, and therefore abrasion to the pipeline is reduced, and the situation that flaring is uneven or flaring fails is avoided; the subsequent connection quality of the pipeline is improved, and the service life of the pipeline is prolonged.

Description

Technical Field

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

[0002] In the prior art, when processing plastic pipes, in order to improve the sealing and corrosion resistance of pipe fittings and enable the pipes to better cooperate with the pipe fittings, related expanding equipment is usually used to expand the ports of the pipes.

[0003] However, in the process of using the expanding equipment to expand the pipe, as the expanding piece moves, the outer surface of the expanding piece will squeeze the inner wall of the pipe, expanding the pipe outward, and because the expanding piece in the existing expanding equipment is usually a single straight-in type when contacting the inner wall of the pipe, the structure is generally simple, and the staff is often required to manually apply lubricant on the outer surface of the expanding piece or the inner wall of the pipe in advance. Not only is the operation more cumbersome, but the manual intervention method is prone to forgetfulness, especially in continuous production or emergency situations, so that the expanding piece directly contacts the inner wall of the pipe, which not only increases the friction between the expanding piece and the inner wall of the pipe, but also increases the straight-in resistance of the expanding piece, accelerates the wear between the expanding piece and the inner wall of the pipe, affects the expanding efficiency, and even causes uneven expanding or expanding failure, thereby affecting the quality of the pipe connection and reducing the service life of the pipe.

[0004] Therefore, we proposed a plastic pipe expanding machine to solve the above problems. Utility Model Content

[0005] In view of the deficiencies in the prior art, the present invention provides a plastic pipe expanding machine, which solves the problems raised in the above-mentioned background technology.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] A plastic pipe expanding machine comprises a workbench, wherein the upper end surface of the workbench is slidably connected to a movable base, a expanding piece is fixedly connected to one side of the movable base, a clamp is fixedly connected to the side of the upper end surface of the workbench away from the movable base, a U-shaped seat is fixedly connected to the center of the upper end surface of the workbench, nozzles are fixedly connected symmetrically up and down in the U-shaped seat, a shunt pipe is fixedly connected between the nozzles, the shunt pipe passes through and is fixedly connected to the U-shaped seat, a conduit is fixedly connected to the center of the shunt pipe, and a lubricant storage tank is fixedly connected to one end of the conduit away from the shunt pipe.

[0008] As a further solution of the utility model: the connection between the conduit and the shunt pipe is fixedly connected with a valve body, a valve stem is slidably connected to one side of the valve body, a linkage block is fixedly connected to the side of the valve stem away from the valve body, a return spring is fixedly connected between the linkage block (and the valve body), and the return spring is sleeved on the outer surface of the valve stem.

[0009] As a further solution of the utility model: the linkage block is fixedly connected to a shift rod on one side close to the U-shaped seat, a linkage plate is sleeved on the outer surface of the shift rod, a through groove is opened on the linkage plate close to the shift rod, the shift rod is slidably connected in the through groove, a linkage shaft is fixedly connected at the center of the linkage plate, and the linkage shaft is rotatably connected to the side wall of the U-shaped seat.

[0010] As a further solution of the utility model: a shift plate is arranged below the linkage plate, the lower end of the shift plate is rotatably connected to a rotating shaft, an L-shaped plate is fixedly connected to the rotating shaft, and the L-shaped plate is fixedly connected to the side wall of the movable base at a side away from the shift plate.

[0011] As a further solution of the utility model: a torsion spring is symmetrically rotatably connected between the shift plate and the L-shaped plate, the torsion springs are sleeved on the outer surface of the rotating shaft, and the L-shaped plate limits one side of the shift plate.

[0012] Beneficial effects of the utility model:

[0013] 1. In the process of expanding the pipe by moving the flaring piece toward the direction of the pipe, the lubricant can be evenly sprayed on the surface of the flaring piece to lubricate the surface of the flaring piece. Compared with the prior art method of manually spraying lubricants, no manual operation is required by workers, which effectively avoids the situation where the surface of the flaring piece is not coated with lubricant due to manual forgetfulness, thereby increasing the friction between the flaring piece and the pipe and the direct entry resistance of the flaring piece, thereby reducing the wear on the pipe, avoiding uneven expansion or expansion failure, thereby improving the subsequent connection quality of the pipe and the service life of the pipe;

[0014] 2. When the flaring piece completes the flaring step of the pipe and is withdrawn from the inside of the pipe, it can effectively avoid the situation where the lubricant is applied too much and the lubricant accumulates on the surface of the flaring piece to form residues, affecting the flaring efficiency of the pipe. At the same time, it can also effectively reduce the excessive use of lubricant and avoid waste of lubricant. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2For this utility model Figure 1 The enlarged structural diagram at A in the middle;

[0018] Figure 3 For this utility model Figure 1 Another perspective structural diagram;

[0019] Figure 4 For this utility model Figure 3 The enlarged structural diagram at B in the middle;

[0020] In the figure: 1. workbench; 2. movable base; 3. flaring member; 4. clamping member; 5. U-shaped seat; 6. conduit; 7. shunt pipe; 8. nozzle; 9. L-shaped plate; 10. valve body; 11. valve stem; 12. linkage block; 13. return spring; 14. lever; 15. linkage plate; 16. lever plate; 17. through groove; 18. linkage shaft; 19. rotating shaft; 20. torsion spring. DETAILED DESCRIPTION

[0021] The technical solution of the utility model will be described clearly and completely in conjunction with the embodiments below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example

[0023] like Figure 1-4 As shown, a plastic pipe expanding machine comprises a workbench 1, the upper end surface of the workbench 1 is slidably connected to a movable base 2, a expanding member 3 is fixedly connected to one side of the movable base 2, a clamping member 4 is fixedly connected to the side of the upper end surface of the workbench 1 away from the movable base 2, a U-shaped seat 5 is fixedly connected to the center of the upper end surface of the workbench 1, nozzles 8 are fixedly connected symmetrically up and down in the U-shaped seat 5, a shunt pipe 7 is fixedly connected between the nozzles 8, the shunt pipe 7 passes through and is fixedly connected to the U-shaped seat 5, a conduit 6 is fixedly connected to the center of the shunt pipe 7, and a lubricant storage tank is fixedly connected to the end of the conduit 6 away from the shunt pipe 7.

[0024] In this embodiment, Figure 2As shown, a valve body 10 is fixedly connected at the connection between the conduit 6 and the shunt pipe 7, a valve stem 11 is slidably connected to one side of the valve body 10, a linkage block 12 is fixedly connected to the side of the valve stem 11 away from the valve body 10, a return spring 13 is fixedly connected between the linkage block 12 and the valve body 10, and the return spring 13 is sleeved on the outer surface of the valve stem 11. When the linkage block 12 is powered, the valve stem 11 will be driven to slide out from the inside of the valve body 10, pulling the return spring 13 connected between the linkage block 12 and the valve body 10, and opening the valve body 10. When the force on the linkage block 12 disappears, the rebound force of the return spring 13 can pull the linkage block 12 to push the valve stem 11 to slide into the valve body 10, thereby closing the valve body 10.

[0025] In this embodiment, Figure 2 and Figure 4 As shown, the linkage block 12 is fixedly connected to a lever 14 on one side close to the U-shaped seat 5, a linkage plate 15 is sleeved on the outer surface of the lever 14, a through groove 17 is opened on the linkage plate 15 on the side close to the lever 14, the lever 14 is slidably connected in the through groove 17, a linkage shaft 18 is fixedly connected at the center of the linkage plate 15, and the linkage shaft 18 is rotatably connected to the side wall of the U-shaped seat 5. When the lower end of the linkage plate 15 is toggled, it rotates around the linkage shaft 18, and toggles the lever 14 through the through groove 17 to drive the linkage block 12 to move.

[0026] In this embodiment, Figure 1 and Figure 4 As shown, a dial plate 16 is arranged below the linkage plate 15, and the lower end of the dial plate 16 is rotatably connected to a rotating shaft 19, and an L-shaped plate 9 is fixedly connected to the rotating shaft 19. The L-shaped plate 9 is fixedly connected to the side wall of the movable base 2 away from the dial plate 16. When the movable base 2 moves, the dial plate 16 can be pushed to move synchronously through the L-shaped plate 9 and the rotating shaft 19, so that the dial plate 16 and the linkage plate 15 are in contact.

[0027] In this embodiment, Figure 4 As shown, a torsion spring 20 is symmetrically connected between the paddle plate 16 and the L-shaped plate 9 for rotation. The torsion springs 20 are all sleeved on the outer surface of the rotating shaft 19. The L-shaped plate 9 limits one side of the paddle plate 16. Through the limitation of the L-shaped plate 9, the paddle plate 16 can only rotate in one direction, and after the resistance to rotation disappears, it can automatically return to a vertical state through the rebound force of the torsion spring 20.

[0028] The effects achieved by this embodiment are as follows: in the prior art, compared with the prior art, in the process of the expansion piece 3 moving in the direction of the pipeline to expand the pipeline, the valve stem 11 can be synchronously driven to be pulled outward in the valve body 10 to open the internal connection channel of the valve body 10, so that the introduced lubricant can be diverted to each nozzle 8, and sprayed on the surface of the expansion piece 3 by the nozzle 8. As the expansion piece 3 moves, the lubricant can be evenly sprayed on the surface of the expansion piece 3 to lubricate the surface of the expansion piece 3. Compared with the prior art that uses manual spraying of lubricants, manual operation by workers is not required, which effectively avoids the situation that manual forgetting causes the surface of the expansion piece 3 to be not coated with lubricants, thereby increasing the friction between the expansion piece 3 and the pipeline and the direct entry resistance of the expansion piece 3, thereby reducing the wear on the pipeline and avoiding the situation of uneven expansion or expansion failure, thereby improving the subsequent connection quality of the pipeline and the service life of the pipeline;

[0029] Secondly, when the expanding member 3 completes the expanding step of the pipe and withdraws from the pipe, since the rotation direction of the linkage plate 15 is limited, when the paddle plate 16 moves in the opposite direction, the linkage plate 15 will hinder the paddle plate 16. However, since the lower end of the paddle plate 16 is connected to the torsion spring 20, the paddle plate 16 can bypass the lower end of the linkage plate 15 through the torsion spring 20 when the linkage plate 15 blocks it, thereby not triggering the linkage plate 15 to rotate and spray the lubricant, effectively avoiding the situation where the lubricant is applied too much and the lubricant accumulates on the surface of the expanding member 3 to form residues, affecting the expanding efficiency of the pipe, and at the same time, it can also effectively reduce the excessive use of the lubricant and avoid the waste of the lubricant.

[0030] The working process and principle involved in the overall content of the above embodiment are as follows:

[0031] When the staff needs to expand one end of the plastic pipe, first place the plastic pipe on the clamping piece 4, press and fix the plastic pipe by the clamping piece 4, and then drive the movable base 2 to move horizontally on the upper end surface of the workbench 1 close to the clamping piece 4, so as to drive the expanding piece 3 connected to the side wall of the movable base 2 to contact with the plastic pipe. During the movement of the movable base 2, the L-shaped plate 9 connected to the side wall can drive the dial plate 16 to move horizontally synchronously, so that the dial plate 16 and the lower end of the linkage plate 15 are in contact. During the contact between the dial plate 16 and the linkage plate 15, the dial plate 16 will be hindered by the L-shaped plate 9 and cannot rotate, so that the dial plate 16 drives the lower end of the linkage plate 15 to move upward, driving the linkage plate 1 5 rotates synchronously around the linkage shaft 18 as the center. At this time, the upper end of the linkage plate 15 moves downward synchronously, and the lever 14 is squeezed through the through groove 17 opened at the upper end of the linkage plate 15, pushing the lever 14 to slide in the through groove 17, and driving the valve stem 11 to slide out from the inside of the valve body 10 through the linkage block (12), pulling the return spring 13 connected between the linkage block 12 and the valve body 10, and opening the valve body 10 at the same time. In the process of opening the valve body 10, the guide tube 6 will transport the liquid in the lubricant storage tank to the shunt pipe 7, and then the liquid will be sprayed from the upper and lower sides through the nozzle 8, and sprayed onto the surface of the expansion piece 3, thereby reducing the wear on the pipeline and avoiding uneven expansion or expansion failure.

[0032] When the movable base 2 drives the lower end of the paddle plate 16 and the linkage plate 15 away from each other through the L-shaped plate 9, the linkage block 12 is subjected to the rebound force of the return spring 13, which pulls the linkage block 12 automatically close to the valve body 10 and pushes the valve stem 11 to slide into the valve body 10, thereby closing the valve body 10 and preventing the liquid in the conduit 6 from flowing into the shunt pipe 7. After the expansion piece 3 completes the processing of the plastic pipe, as the movable base 2 drives the expansion piece 3 away from the plastic pipe, the paddle plate 16 on the L-shaped plate 9 will be connected with the lower end of the linkage plate 15 again. The lever 16 is pressed against the L-shaped plate 9 and the torsion spring 20 is pressed against the L-shaped plate 9. When the lever 16 moves away from the linkage plate 15 following the L-shaped plate 9, the rebound force of the torsion spring 20 can push the lever 16 back to the vertical state again, so that the lever 16 can push the linkage plate 15 to move laterally.

[0033] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A plastic pipe expanding machine, characterized in that: The invention comprises a workbench (1), wherein the upper end surface of the workbench (1) is slidably connected to a movable base (2), a flaring member (3) is fixedly connected to one side of the movable base (2), a clamping member (4) is fixedly connected to the side of the upper end surface of the workbench (1) away from the movable base (2), a U-shaped seat (5) is fixedly connected at the center of the upper end surface of the workbench (1), nozzles (8) are fixedly connected symmetrically up and down in the U-shaped seat (5), a shunt pipe (7) is fixedly connected between the nozzles (8), the shunt pipe (7) passes through and is fixedly connected to the U-shaped seat (5), a conduit (6) is fixedly connected at the center of the shunt pipe (7), and a lubricant storage tank is fixedly connected to one end of the conduit (6) away from the shunt pipe (7).

2. A plastic pipe belling machine according to claim 1, characterized in that: A valve body (10) is fixedly connected at the connection point between the conduit (6) and the shunt pipe (7); a valve stem (11) is slidably connected through one side of the valve body (10); a linkage block (12) is fixedly connected to the side of the valve stem (11) away from the valve body (10); a return spring (13) is fixedly connected between the linkage block (12) and the valve body (10); and the return spring (13) is sleeved on the outer surface of the valve stem (11).

3. A plastic pipe belling machine according to claim 2, characterized in that: The linkage block (12) is fixedly connected to a lever (14) on one side close to the U-shaped seat (5); a linkage plate (15) is sleeved on the outer surface of the lever (14); a through groove (17) is formed on the linkage plate (15) on one side close to the lever (14); the lever (14) is slidably connected in the through groove (17); a linkage shaft (18) is fixedly connected at the center of the linkage plate (15); and the linkage shaft (18) is rotatably connected to the side wall of the U-shaped seat (5).

4. A plastic pipe belling machine according to claim 3, characterized in that: A shift plate (16) is arranged below the linkage plate (15); the lower end of the shift plate (16) is rotatably connected to a rotating shaft (19); an L-shaped plate (9) is fixedly connected to the rotating shaft (19); and the side of the L-shaped plate (9) away from the shift plate (16) is fixedly connected to the side wall of the movable base (2).

5. A plastic pipe belling machine according to claim 4, characterized in that: A torsion spring (20) is symmetrically rotatably connected between the shifting plate (16) and the L-shaped plate (9), and the torsion spring (20) is sleeved on the outer surface of the rotating shaft (19). The L-shaped plate (9) limits one side of the shifting plate (16).

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