Thermal rotational molding device for inner wall and outer wall of metal pipeline

Abstract

The utility model discloses a metal pipeline inner and outer wall hot rotational molding device which comprises a bottom plate, a vertical plate is welded to one side of the upper end of the bottom plate, a gear motor is installed in the middle of one side wall of the vertical plate, the power output end of the gear motor is connected with a first rotating shaft, and a jacking mechanism is installed on the side, opposite to the vertical plate, of the upper end of the bottom plate. The metal pipeline clamping device has the beneficial effects that through the design of the centering clamping mechanisms and the jacking mechanisms, on one hand, jacking clamping of metal pipelines with different lengths can be achieved by adjusting the distance between the two centering clamping mechanisms under the action of the jacking mechanisms; on the other hand, after the metal pipeline is centered, mounted, jacked and clamped, an arc-shaped clamping plate can be contracted into a storage groove through a second electric telescopic rod, so that the outer wall of the metal pipeline is prevented from being shielded by the arc-shaped clamping plate, and the working efficiency is improved. And the inner wall and the outer wall of the metal pipeline can be fully subjected to hot rotational molding.

Description

Technical Field

[0001] The utility model relates to the technical field of metal pipeline processing, in particular to a device for hot rotational molding of inner and outer walls of a metal pipeline. Background Art

[0002] In order to improve the performance of the inner and outer walls of metal pipes during processing, it is usually necessary to add chemical materials to the inner and outer walls through hot rotational molding to enhance their performance.

[0003] A Chinese patent with announcement number CN214160316U discloses a hot rotational molding device for inner and outer walls of metal pipes. Although the hot rotational molding device for inner and outer walls of metal pipes described in the above patent can simultaneously perform hot rotational molding on the inner and outer walls of metal pipes when in use, on the one hand, due to the movement of the distance between the two convenient fixing structures on the hot rotational molding device for inner and outer walls of metal pipes of the above structure, the device can only perform inner and outer wall rotational molding on metal pipes of a specific length when in use, which makes the flexibility of the device poor. On the other hand, due to the arc plate on the hot rotational molding device for inner and outer walls of metal pipes of the above structure, when clamping, the part of the metal pipe that cooperates with the arc plate will be blocked, thereby causing the phenomenon of incomplete hot rotational molding of the clamping part of the metal pipe during the hot rotational molding process. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] The technical problem to be solved by the utility model is to provide a device for hot rotationally molding the inner and outer walls of metal pipes of different lengths in response to the current status of the prior art, which can simultaneously perform hot rotationally molding on the inner and outer walls of metal pipes and can ensure sufficient hot rotationally molding of the inner and outer walls of the metal pipes by shrinking the arc-shaped clamping plate during the hot rotationally molding process.

[0006] (II) Technical solution

[0007] The utility model is realized by the following technical scheme: the utility model proposes a device for hot rotational molding of inner and outer walls of a metal pipe, comprising a bottom plate, a vertical plate welded to one side of the upper end of the bottom plate, a reduction motor installed in the middle of one side wall of the vertical plate, a rotating shaft connected to the power output end of the reduction motor, a tightening mechanism installed on the side of the upper end of the bottom plate opposite to the vertical plate, the tightening mechanism comprising mounting plates symmetrically welded on both sides of the upper end of the bottom plate, an electric telescopic rod installed in the middle of one side wall of the mounting plate, and a sliding top plate installed on the telescopic part of the electric telescopic rod, the sliding top plate facing the side of the vertical plate A second rotating shaft is installed in the middle of the wall, and a centering clamping mechanism is installed on the second rotating shaft and the opposite end of the first rotating shaft respectively. The centering clamping mechanism includes a mounting block, a bidirectional screw rod installed on one side of the mounting block, a slider symmetrically installed on the two-way screw rod with two sections of oppositely rotating threaded parts, a storage groove opened in the middle of one side wall of the slider, an electric telescopic rod 2 installed in the storage groove, a connecting block installed on the telescopic part of the electric telescopic rod 2, an arc-shaped clamping plate installed on a side wall of the connecting block facing away from the electric telescopic rod 2, and a sliding groove opened on the mounting block to cooperate with the slider.

[0008] Furthermore, an inverted L-shaped support plate is welded to the middle of the top of the vertical plate, and a preheating mechanism is installed on the support plate. The preheating mechanism includes a hot air blower installed in the middle of the upper end of the support plate and a blowing hood installed at the top of the support plate.

[0009] By adopting the above technical solution, the hot air blower can be started to introduce hot air into the blowing hood, so that the hot air can be sprayed onto the clamped metal pipe through the blowing hood to preheat the metal pipe.

[0010] Furthermore, a liquid tank is installed at the upper end of the bottom plate between the vertical plate and the sliding top plate. The liquid tank is located directly below the blowing hood, and the lower end of the centering clamping mechanism extends into the liquid tank.

[0011] By adopting the above technical solution, the liquid tank is mainly used to contain the plastic liquid for hot rotational molding of the metal tube. By immersing the bottom end of the clamped metal tube into the liquid, the inner and outer walls of the metal tube are simultaneously hot rotationally molded during the rotation of the preheated metal tube.

[0012] Furthermore, an operation panel is installed on the upper part of one side wall of the vertical plate, and the operation panel is electrically connected to the reduction motor, the electric telescopic rod 1, the electric telescopic rod 2 and the hot air blower.

[0013] By adopting the above technical solution, the operation panel mainly controls the orderly operation of the reduction motor, the electric telescopic rod 1, the electric telescopic rod 2 and the hot air blower by controlling the on-off of the circuit.

[0014] Furthermore, the rotating shaft 1 is rotatably connected to the vertical plate, and the rotating shaft 1 is connected to the reduction motor coupling.

[0015] By adopting the above technical solution, the reduction motor drives the rotating shaft to rotate, so as to realize the convenient rotation of the clamped metal pipe.

[0016] Furthermore, the second rotating shaft is rotatably connected to the sliding top plate, the bottom end of the sliding top plate is slidably connected to the bottom plate, and the first electric telescopic rod is bolted to the sliding top plate and the mounting plate.

[0017] By adopting the above technical solution, the sliding top plate can be conveniently adjusted by sliding under the action of the electric telescopic rod, so as to adjust the distance between the two centering clamping mechanisms.

[0018] Furthermore, a hand wheel is provided at the top end of the bidirectional screw rod, the bidirectional screw rod is rotatably connected to the mounting block, and the bidirectional screw rod passes through the slider and is threadedly connected to the slider.

[0019] By adopting the above technical solution, the two sliding blocks can be adjusted synchronously after the bidirectional screw is rotated, ensuring that the two clamping plates can be clamped on the metal pipe at the same time.

[0020] Furthermore, the second electric telescopic rod is connected to the storage slot and the connecting block by bolts, and the connecting block is welded to the arc-shaped clamping plate.

[0021] By adopting the above technical solution, after the metal pipe is center-clamped and tightened by the center-clamping mechanism, the arc-shaped clamping plate can be retracted into the storage groove with the help of the second electric telescopic rod to avoid the arc-shaped clamping plate blocking the outer wall of the metal pipe, thereby ensuring that the inner and outer walls of the metal pipe can be fully hot-rolled.

[0022] (III) Beneficial effects

[0023] Compared with the prior art, the utility model has the following beneficial effects:

[0024] In order to solve the problem that the existing metal pipe inner and outer wall hot rotation molding equipment can perform hot rotation molding on the inner and outer walls of the metal pipe at the same time when in use, on the one hand, due to the movement of the distance between the two convenient fixing structures on the metal pipe inner and outer wall hot rotation molding equipment with the above structure, the device can only perform inner and outer wall rotation molding on the metal pipe of a specific length when in use, which makes the flexibility of the device poor; on the other hand, due to the arc plate on the metal pipe inner and outer wall hot rotation molding equipment with the above structure, when clamping, the part of the metal pipe that cooperates with the arc plate will be blocked, so that the clamping part of the metal pipe during the hot rotation molding process There is a problem of incomplete hot rotational molding. The utility model, through the design of a centering clamping mechanism and a tightening mechanism, can, on the one hand, realize the tightening and clamping of metal pipes of different lengths by adjusting the distance between the two centering clamping mechanisms under the action of the tightening mechanism, ensuring that the device can perform hot rotational molding on the inner and outer walls of metal pipes of different lengths at the same time, with good flexibility. On the other hand, after the metal pipe is installed in the center and tightened, the arc-shaped clamping plate can be retracted into the storage groove through the electric telescopic rod 2 to avoid the arc-shaped clamping plate from blocking the outer wall of the metal pipe, ensuring that the inner and outer walls of the metal pipe can be fully hot rotationally molded. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of a device for hot rotational molding of inner and outer walls of a metal pipe described in the utility model;

[0026] Figure 2 This is a front view of a device for hot rotational molding of inner and outer walls of a metal pipe according to the utility model;

[0027] Figure 3 The utility model is a metal pipe inner and outer wall hot rotation molding device Figure 1 The enlarged view of point A in the middle;

[0028] Figure 4 It is a main cross-sectional view of a centering clamping mechanism in a hot rotational molding device for inner and outer walls of a metal pipe described in the utility model.

[0029] The following are the descriptions of the reference numerals:

[0030] 1. Support plate; 2. Centering clamping mechanism; 201. Bidirectional screw rod; 202. Sliding block; 203. Electric telescopic rod 2; 204. Connecting block; 205. Sliding groove; 206. Arc clamping plate; 207. Storage groove; 208. Mounting block; 3. Operation panel; 4. Vertical plate; 5. Liquid tank; 6. Bottom plate; 7. Tightening mechanism; 701. Mounting plate; 702. Electric telescopic rod 1; 703. Sliding top plate; 8. Preheating mechanism; 801. Hot air blower; 802. Blowing hood; 9. Rotating shaft 1; 10. Gear motor; 11. Rotating shaft 2. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0032] like Figure 1-Figure 4 As shown, a device for hot rotational molding of inner and outer walls of a metal pipe in this embodiment comprises a bottom plate 6, a vertical plate 4 is welded to one side of the upper end of the bottom plate 6, a reduction motor 10 is installed in the middle of one side wall of the vertical plate 4, a rotating shaft 9 is connected to the power output end of the reduction motor 10, a tightening mechanism 7 is installed on the side of the upper end of the bottom plate 6 opposite to the vertical plate 4, the tightening mechanism 7 comprises a mounting plate 701 symmetrically welded on both sides of the upper end of the bottom plate 6, an electric telescopic rod 702 installed in the middle of one side wall of the mounting plate 701, and a sliding top plate 703 installed in the telescopic part of the electric telescopic rod 702, a rotating shaft 2 11 is installed in the middle of the side wall of the vertical plate 4 on the sliding top plate 703, a centering clamping mechanism 2 is respectively installed on the opposite ends of the rotating shaft 2 11 and the rotating shaft 9, and the sliding top plate 703 can be conveniently slidably adjusted under the action of the electric telescopic rod 702 to adjust the distance between the two centering clamping mechanisms 2 so as to adjust the distance between the two centering clamping mechanisms 2 so as to adjust the distance between the metal pipes of different lengths. The metal pipe is clamped and fixed, and the centering clamping mechanism 2 includes a mounting block 208, a bidirectional screw 201 mounted on one side of the mounting block 208, a slider 202 symmetrically mounted on the bidirectional screw 201 with two sections of oppositely rotating threaded parts, a receiving groove 207 arranged in the middle of one side wall of the slider 202, an electric telescopic rod 203 mounted in the receiving groove 207, a connecting block 204 installed on the telescopic part of the electric telescopic rod 203, an arc-shaped clamping plate 206 mounted on the side wall of the connecting block 204 facing away from the electric telescopic rod 203, and a sliding groove 205 arranged on the mounting block 208 and cooperating with the slider 202. When the metal pipe is center-clamped and tightened under the action of the centering clamping mechanism 2, the arc-shaped clamping plate 206 can be retracted into the receiving groove 207 with the help of the electric telescopic rod 203 to avoid the arc-shaped clamping plate 206 blocking the outer wall of the metal pipe, thereby ensuring that the inner and outer walls of the metal pipe can be fully hot-rolled.

[0033] like Figure 1-Figure 2 As shown, in this embodiment, an inverted L-shaped support plate 1 is welded to the middle part of the top end of the vertical plate 4, and a preheating mechanism 8 is installed on the support plate 1. The preheating mechanism 8 includes a hot air blower 801 installed in the middle part of the upper end of the support plate 1 and a blow hood 802 installed at the top end of the support plate 1. When the hot air blower 801 is started, hot air can be introduced into the blow hood 802, so that the hot air can be sprayed onto the clamped metal pipe through the blow hood 802 to preheat the metal pipe.

[0034] like Figure 1-Figure 2As shown, in this embodiment, a liquid tank 5 is also installed at the upper end of the bottom plate 6 between the vertical plate 4 and the sliding top plate 703. The liquid tank 5 is located directly below the blowing hood 802, and the lower end of the centering clamping mechanism 2 extends into the liquid tank 5. The liquid tank 5 is mainly used to contain plastic liquid for hot rotation molding of the metal tube. By immersing the bottom end of the clamped metal tube into the liquid material, the inner and outer walls of the metal tube are simultaneously hot rotationally molded during the rotation of the preheated metal tube. An operation panel 3 is also installed on the upper part of one side wall of the vertical plate 4. The operation panel 3 is electrically connected to the reduction motor 10, the electric telescopic rod 1 702, the electric telescopic rod 203 and the hot air blower 801. The operation panel 3 mainly controls the orderly operation of the reduction motor 10, the electric telescopic rod 1 702, the electric telescopic rod 203 and the hot air blower 801 by controlling the on and off of the control circuit.

[0035] like Figure 1-Figure 4 As shown, in this embodiment, the rotating shaft 9 is rotatably connected to the vertical plate 4, and the rotating shaft 9 is connected to the reduction motor 10 by a coupling. The reduction motor 10 drives the rotating shaft 9 to rotate, so that the metal pipe can be conveniently rotated after clamping.

[0036] like Figure 2-Figure 4 As shown, in this embodiment, the second rotating shaft 11 is rotatably connected to the sliding top plate 703, the bottom end of the sliding top plate 703 is slidably connected to the bottom plate 6, and the electric telescopic rod 1 702 is bolted to the sliding top plate 703 and the mounting plate 701, the top of the bidirectional screw rod 201 is provided with a handwheel, the bidirectional screw rod 201 is rotatably connected to the mounting block 208, the bidirectional screw rod 201 passes through the slider 202 and is threadedly connected to the slider 202, and after the bidirectional screw rod 201 rotates, the synchronous sliding adjustment of the two sliders 202 will be realized to ensure that the two splints can be clamped on the metal pipe at the same time, the electric telescopic rod 203 is bolted to the storage groove 207 and the connecting block 204, and the connecting block 204 is welded to the arc-shaped splint 206.

[0037] The specific implementation process of this embodiment is as follows: when in use, first adjust the position of the sliding top plate 703 according to the length of the metal tube to be processed with the help of the electric telescopic rod 702 in the tightening mechanism 7, so that the distance between the two centering clamping mechanisms 2 matches the length of the metal tube, and then place the two ends of the metal tube between the arc-shaped clamping plates 206 in the two centering clamping mechanisms 2, and realize the centering clamping of the outer wall of the metal tube by the arc-shaped clamping plates 206 by rotating the two-way screw rod 201. After the centering clamping, the two ends of the metal tube are further tightened between the two centering clamping mechanisms 2 under the action of the tightening mechanism 7, and then after the metal tube is laterally tightened, the arc-shaped clamping plate 206 is retracted into the storage groove 207, and the metal tube after tightening is preheated with the help of the preheating mechanism 8. Finally, it is only necessary to use the reducing The high-speed motor 10 is started to realize the rotation of the metal tube, so that the preheated metal tube can contact the material liquid in the liquid tank 5 during the rotation process, thereby realizing the simultaneous hot rotation molding of the inner and outer walls of the metal tube. During the hot rotation molding, the distance between the two centering clamping mechanisms 2 is adjusted under the action of the tightening mechanism 7 to realize the tightening and clamping of metal pipes of different lengths, ensuring that the device can simultaneously perform hot rotation molding on the inner and outer walls of metal pipes of different lengths, making the device more flexible to use. At the same time, after the metal pipe is installed in the center and tightened, the arc clamping plate 206 can be retracted into the storage groove 207 through the electric telescopic rod 203 to avoid the arc clamping plate 206 from blocking the outer wall of the metal pipe, ensuring that the inner and outer walls of the metal pipe can be fully hot rotation molded.

[0038] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A device for hot rotational molding of inner and outer walls of a metal pipe, characterized in that: The invention comprises a bottom plate (6), a vertical plate (4) is welded to one side of the upper end of the bottom plate (6), a reduction motor (10) is installed in the middle of one side wall of the vertical plate (4), a power output end of the reduction motor (10) is connected to a rotating shaft (9), a tightening mechanism (7) is installed on the side of the upper end of the bottom plate (6) opposite to the vertical plate (4), the tightening mechanism (7) comprises a mounting plate (701) symmetrically welded to both sides of the upper end of the bottom plate (6), an electric telescopic rod (702) installed in the middle of one side wall of the mounting plate (701), and a sliding top plate (703) installed in the telescopic part of the electric telescopic rod (702), the sliding top plate (703) is installed with a rotating shaft (11) in the middle of the side wall of the vertical plate (4), the rotating shaft (11) and the rotating shaft (9) are relatively A centering clamping mechanism (2) is respectively installed at one end of each of the two ends of the two-way screw rod (201), the centering clamping mechanism (2) comprising a mounting block (208), a bidirectional screw rod (201) mounted on one side of the mounting block (208), a slider (202) symmetrically mounted on two sections of the bidirectional screw rod (201) with oppositely rotating threads, a receiving groove (207) provided in the middle of a side wall of the slider (202), a second electric telescopic rod (203) installed in the receiving groove (207), a connecting block (204) installed at the telescopic part of the second electric telescopic rod (203), an arc-shaped clamping plate (206) mounted on a side wall of the connecting block (204) facing away from the second electric telescopic rod (203), and a sliding groove (205) provided on the mounting block (208) and cooperating with the slider (202).

2. A hot rotational molding device for inner and outer walls of a metal pipe according to claim 1, characterized in that: An inverted L-shaped support plate (1) is welded to the middle of the top end of the vertical plate (4), and a preheating mechanism (8) is installed on the support plate (1). The preheating mechanism (8) comprises a hot air blower (801) installed in the middle of the upper end of the support plate (1) and a blowing hood (802) installed at the top end of the support plate (1).

3. A hot rotational molding device for inner and outer walls of a metal pipe according to claim 2, characterized in that: A liquid tank (5) is also installed at the upper end of the bottom plate (6) between the vertical plate (4) and the sliding top plate (703). The liquid tank (5) is located directly below the blowing hood (802), and the lower end of the centering clamping mechanism (2) extends into the liquid tank (5).

4. A hot rotational molding device for inner and outer walls of a metal pipe according to claim 2, characterized in that: An operation panel (3) is also installed on the upper part of one side wall of the vertical plate (4), and the operation panel (3) is electrically connected to the reduction motor (10), the electric telescopic rod 1 (702), the electric telescopic rod 2 (203) and the hot air blower (801).

5. The device for hot rotational molding of inner and outer walls of a metal pipe according to claim 1, characterized in that: The rotating shaft 1 (9) is rotationally connected to the vertical plate (4), and the rotating shaft 1 (9) is connected to the reduction motor (10) coupling.

6. The device for hot rotational molding of inner and outer walls of a metal pipe according to claim 1, characterized in that: The second rotating shaft (11) is rotatably connected to the sliding top plate (703), the bottom end of the sliding top plate (703) is slidably connected to the bottom plate (6), and the first electric telescopic rod (702) is bolted to the sliding top plate (703) and the mounting plate (701).

7. The device for hot rotational molding of inner and outer walls of a metal pipe according to claim 1, characterized in that: The top end of the bidirectional screw rod (201) is provided with a hand wheel, the bidirectional screw rod (201) is rotatably connected to the mounting block (208), and the bidirectional screw rod (201) passes through the slider (202) and is threadedly connected to the slider (202).

8. The device for hot rotational molding of inner and outer walls of a metal pipe according to claim 1, characterized in that: The second electric telescopic rod (203) is connected to the storage groove (207) and the connecting block (204) by bolts, and the connecting block (204) is welded to the arc-shaped clamping plate (206).

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