A guide die adjusting device for a pipe bending machine

Abstract

This utility model relates to the field of pipe bending machine technology, specifically a guide mold adjustment device for a pipe bending machine. It includes a guide mold body detachably connected to the machine body, and a spraying mechanism fixedly connected to one side of the guide mold body. The spraying mechanism includes an arc-shaped strip fixedly connected to one side of the guide mold body, with a C-shaped strip rotatably fitted onto the outer arc surface of the arc-shaped strip. A groove is formed on the inner arc surface of the C-shaped strip. In this utility model, a stepper motor is activated, causing the gears to rotate the C-shaped strip, which closes the openings of the C-shaped strip and the arc-shaped strip, encircling the pipe. Multiple cylinders are activated, causing the guide rail and slider to reciprocate. The slider, using a connecting rope, moves the cylinder upwards. Then, the cylinder and counterweight naturally slide down due to their own weight, causing the cylinder and spray head to reciprocate within adjacent arc-shaped guide rails. This allows the spray head to spray lubricant onto the pipe, reducing friction between the pipe and the guide mold body, and utilizing the lubricant to absorb heat from the pipe, thus facilitating pipe bending operations.

Description

Technical Field

[0001] This utility model relates to the field of pipe bending machine technology, specifically a guide mold adjustment device for a pipe bending machine. Background Technology

[0002] Existing fully automatic pipe bending machines are equipped with guide molds mounted on rotatable support arms. The guide molds can slide on the support arms. By moving the pipe to the processing station, the guide molds are moved to press the pipe against the wheel molds. Then, the clamping molds on the same side as the guide molds contact the pipe. When bending the pipe, the support arm drives the guide molds and wheel molds to rotate together, causing the pipe to bend around the wheel molds. However, when metal pipes such as stainless steel, copper, and iron are bent in contact with the guide molds, the direct contact between metals increases the frictional energy, causing the pipe temperature to rise and resulting in sintering, which affects the quality of the pipe and is quite inconvenient. Utility Model Content

[0003] The purpose of this invention is to provide a guide mold adjustment device for a pipe bending machine to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A guide die adjustment device for a pipe bending machine, comprising:

[0006] The system comprises a main body, a guide mold body capable of bending against a pipe, a spraying mechanism and a driving mechanism capable of adjusting the lubrication between the guide mold body and the pipe. The guide mold body is detachably connected to the main body. The spraying mechanism is fixedly connected to one side of the guide mold body. The spraying mechanism includes an arc-shaped strip, which is fixedly connected to one side of the guide mold body. A C-shaped strip is rotatably sleeved on the outer arc surface of the arc-shaped strip. A groove is formed on the inner arc surface of the C-shaped strip, and a protruding strip is fixedly sleeved on the outer arc surface of the arc-shaped strip. The protruding strip is rotatably sleeved inside the groove. Arc-shaped guide rails are fixedly connected to both the arc-shaped strip and one side of the arc-shaped strip. An arc-shaped locking block is slidably engaged inside each arc-shaped guide rail. A cylinder is fixedly connected to one side of each arc-shaped locking block. A spray head is fixedly sleeved inside each cylinder. The driving mechanism is fixedly connected to the guide mold body.

[0007] Furthermore, the outer arc surface of the C-shaped strip is fixedly connected with multiple tooth blocks, the top surface of the guide mold body is fixedly connected with a motor box through a connecting frame, and a stepper motor is installed inside the motor box. The motor shaft of the stepper motor is fixedly connected with a gear, and the gear teeth mesh with adjacent tooth blocks.

[0008] Furthermore, the center of the C-shaped strip coincides with the center of the arc-shaped strip.

[0009] Furthermore, the distance between the two ends of the C-shaped strip is smaller than the distance between the two ends of the arc-shaped strip.

[0010] Furthermore, the driving mechanism includes:

[0011] The system includes multiple cylinders, a rail, two sliders, and two counterweight rods. The cylinders are fixedly connected to the top of the motor box, and an L-shaped frame is provided above the cylinders. The movable end of any cylinder is fixedly connected to the long arm of the L-shaped frame. The top surface of the rail is fixedly connected to the short arm of the L-shaped frame. The two sliders are slidably engaged inside the rail, and each slider is fixedly connected to a connecting rope. One end of each counterweight rod is rotatably connected to the outer wall of one of the two cylinders, and the two connecting ropes are fixedly connected to the outer wall of each of the two counterweight rods.

[0012] Furthermore, the connecting rope is a PE braided thread.

[0013] Furthermore, both sliders are C-shaped.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] By starting a stepper motor to drive a gear to rotate, the gear drives a C-shaped strip to rotate, thus closing the openings of the C-shaped strip and the arc-shaped strip, encircling the pipe. Then, multiple cylinders are activated to drive the guide rail and slider to move back and forth. The slider moves the cylinder upwards using a connecting rope. Then, the cylinder and counterweight rod slide down naturally due to their own weight, causing the cylinder and spray head to move back and forth inside adjacent arc-shaped guide rails. This allows the spray head to spray lubricant onto the pipe, thereby reducing the frictional energy between the pipe and the guide mold body. The lubricant also absorbs heat from the pipe, making it easier to perform pipe bending operations. Attached Figure Description

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

[0017] Figure 2 This is a schematic diagram showing the positional relationship between the drive mechanism and the spraying mechanism in this utility model;

[0018] Figure 3 This is an exploded view of the drive mechanism and spraying mechanism in this utility model;

[0019] Figure 4 This is a schematic diagram of the initial state of the arc-shaped strip and the C-shaped strip in this utility model.

[0020] In the diagram: 100, machine body; 200, guide mold body; 300, spraying mechanism; 310, arc-shaped strip; 320, C-shaped strip; 330, arc-shaped guide rail; 340, cylinder; 341, spray head; 350, motor box; 351, gear; 400, drive mechanism; 410, cylinder; 420, caliper rail; 430, slider; 431, connecting rope; 440, counterweight bar. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4 In this embodiment of the present invention, a guide mold adjustment device for a pipe bending machine includes a machine body 100, a guide mold body 200 capable of bending a pipe in contact with it, a spraying mechanism 300 capable of adjusting the lubrication between the guide mold body 200 and the pipe, and a driving mechanism 400. The guide mold body 200 is detachably connected to the machine body 100. The spraying mechanism 300 is fixedly connected to one side of the guide mold body 200. The spraying mechanism 300 includes an arc-shaped strip 310, which is fixedly connected to one side of the guide mold body 200. A C-shaped strip 320 is rotatably sleeved on the outer arc surface. A groove is opened on the inner arc surface of the C-shaped strip 320. A protruding strip is fixedly sleeved on the outer arc surface of the arc strip 310. The protruding strip is rotatably sleeved inside the groove. Arc-shaped guide rails 330 are fixedly connected to one side of the arc strip 310. Arc-shaped locking blocks are slidably engaged inside each arc-shaped guide rail 330. A cylinder 340 is fixedly connected to one side of each arc-shaped locking block. An injection head 341 is fixedly sleeved inside each cylinder 340. The drive mechanism 400 is fixedly connected to the guide mold body 200.

[0023] Specifically, the machine body 100 is a fully automatic pipe bending machine. In the initial state, the openings of the C-shaped strip 320 and the arc-shaped strip 310 overlap, allowing the pipe to enter the interior of the C-shaped strip 320 and the arc-shaped strip 310 through the openings. Before the pipe contacts the guide mold body 200, the openings of the C-shaped strip 320 and the arc-shaped strip 310 can be closed by rotating the C-shaped strip 320, thereby encircling the pipe. By using a water pump and a conduit to connect two spray heads 341, the water pump can input lubricant to the two spray heads 341 for spraying, thereby spraying lubricant onto the surface of the pipe. The two sliding cylinders 3... 40. The cylinder 340 reciprocates within the adjacent arc-shaped guide rail 330, thereby applying the lubricant sprayed from the nozzle 341 to various parts of the pipe. Then, during pipe bending, the guide mold body 200 presses the pipe against the groove of the wheel mold, and the clamping mold on the same side as the guide mold body 200 contacts the pipe. The arc-shaped strip 310 and C-shaped strip 320 are located between the clamping mold and the guide mold body 200, ensuring that the arc-shaped strip 310 and C-shaped strip 320 do not easily affect the movement of the clamping mold and the guide mold body 200. Then, the machine body 100 drives the guide mold body 200, along with the wheel mold, to rotate and bend the pipe, causing the pipe to bend. The presence of lubricant sprayed from the nozzle 341 between the body 200 and the wheel mold reduces frictional energy between the pipe and the guide mold body 200. The lubricant also absorbs heat from the pipe, facilitating pipe bending. The lubricant spray volume can be adjusted via a water pump; the water pump and hose are existing technologies and will not be described further. The arc-shaped strip 310 and drive gear 351 clamp and position the C-shaped strip 320, preventing it from easily detaching from the arc-shaped strip 310 during rotation. The shapes of the groove and the convex strip can be freely designed, allowing the convex strip to be engaged within the groove to prevent the C-shaped strip 320 from detaching from the arc-shaped strip 310. The lubricant allows... Extreme pressure agent is used to lubricate under high temperature and high pressure conditions. The C-shaped strip 320 and the arc strip 310 are large in size, so they can be adapted to pipes of different diameters. When the connecting frame, the arc strip 310 and the guide mold body 200 are produced, the connecting frame and the arc strip 310 can be provided with mounting holes, and the guide mold body 200 can be provided with threaded holes. Bolts and other connecting parts are screwed into the threaded holes after passing through the mounting holes, thereby fixing the connecting frame and the arc strip 310 to the guide mold body 200. The guide mold body 200 can also be disassembled and replaced. The specifications of the guide mold body 200 are different, but the specifications of the threaded holes are the same.

[0024] Example 1

[0025] like Figure 2-4As shown, in this embodiment, multiple toothed blocks are fixedly connected to the outer arc surface of the C-shaped strip 320. The top surface of the guide mold body 200 is fixedly connected to the motor box 350 through the connecting frame. A stepper motor is installed inside the motor box 350. The motor shaft of the stepper motor is fixedly connected to the gear 351. The gear teeth of the gear 351 mesh with the adjacent toothed blocks. The center of the C-shaped strip 320 coincides with the center of the arc strip 310. The distance between the two ends of the C-shaped strip 320 is smaller than the distance between the two ends of the arc strip 310.

[0026] In this embodiment, by starting the stepper motor, the C-shaped bar 320 can be rotated by the gear 351 moving the gear block. The stepper motor is equipped with an electromagnetic brake, which makes it difficult for the motor shaft to rotate when the stepper motor is not started, thus making it easier for the user to control the rotation of the C-shaped bar 320. The center of the C-shaped bar 320, the center of the arc bar 310, and the center of any arc guide rail 330 are all coincident. Due to the shape limitation of the arc-shaped locking block on the cylinder 340, when the spray head 341 moves to any point on the arc guide rail 330, the spray head 341 is always facing the center of the C-shaped bar 320 and the arc bar 310. Moreover, the distance between the two ends of the C-shaped bar 320 is smaller than the distance between the two ends of the arc bar 310. When the C-shaped bar 320 rotates and the openings of the C-shaped bar 320 and the arc bar 310 close each other, the two ends of the C-shaped bar 320 will be located on the arc bar 310, preventing the C-shaped bar 320 from detaching from the arc bar 310.

[0027] like Figure 2-3 As shown, in this embodiment, the drive mechanism 400 includes:

[0028] The system includes multiple cylinders 410, a rail 420, two sliders 430, and two counterweight rods 440. The cylinders 410 are all fixedly connected to the top of the motor box 350, and an L-shaped frame is provided above the cylinders 410. The movable end of any cylinder 410 is fixedly connected to the long arm of the L-shaped frame. The top surface of the rail 420 is fixedly connected to the short arm of the L-shaped frame. The two sliders 430 are slidably engaged inside the rail 420. Each slider 430 is fixedly connected to a connecting rope 431. One end of each of the two counterweight rods 440 is rotatably connected to the outer wall of each of the two cylinders 340. The two connecting ropes 431 are fixedly connected to the outer wall of each of the two counterweight rods 440. The connecting ropes 431 are PE braided wires.

[0029] In practice, multiple cylinders 410 are activated to move the rail 420 and slider 430. The rail 420 can pull the two counterweight rods 440 and the cylinder 340 upward via the connecting rope 431. This causes the cylinder 340 to slide the adjacent spray head 341 upward along the adjacent arc-shaped guide rail 330. Then, when the cylinder 410 moves the rail 420 downward, the two counterweight rods 440 and the cylinder 340 naturally slide down along the adjacent arc-shaped guide rail 330 due to their own weight. Thus, the cylinder 340 can reciprocate within the adjacent arc-shaped guide rail 330 by the reciprocating movement of the cylinder 410. The connecting rope 431 is PE braided line, a common fishing line material with high strength and low ductility.

[0030] Example 2

[0031] Based on Embodiment 1, both sliders 430 are C-shaped, allowing them to be staggered.

[0032] like Figure 2-3 As shown, in this embodiment, both sliders 430 are C-shaped.

[0033] In practice, both sliders 430 are C-shaped, so that the two sliders 430 are respectively locked inside the rail 420 on opposite sides. The two sliders 430 are staggered, so that when the two sliders 430 slide, they can overlap at the same point on the rail 420.

[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0035] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A guide die adjustment device for a pipe bending machine, characterized in that, include: Body (100); The guide mold body (200) is detachably connected to the machine body (100); A spraying mechanism (300) is fixedly connected to one side of the guide mold body (200). The spraying mechanism (300) includes an arc-shaped strip (310). The arc-shaped strip (310) is fixedly connected to one side of the guide mold body (200), and a C-shaped strip (320) is rotatably sleeved on the outer arc surface of the arc-shaped strip (310). A groove is opened on the inner arc surface of the C-shaped strip (320), and a protrusion is fixedly sleeved on the outer arc surface of the arc-shaped strip (310). The protrusion is rotatably sleeved inside the groove. Arc-shaped guide rails (330) are fixedly connected to both the arc-shaped strip (310) and one side of the arc-shaped strip (310). An arc-shaped locking block is slidably engaged inside any arc-shaped guide rail (330). A cylinder (340) is fixedly connected to one side of any arc-shaped locking block. A spray head (341) is fixedly sleeved inside any cylinder (340). The drive mechanism (400) is fixedly connected to the guide mold body (200).

2. The guide mold adjusting device for a pipe bending machine according to claim 1, characterized in that, The outer arc surface of the C-shaped strip (320) is fixedly connected with multiple tooth blocks. The top surface of the guide mold body (200) is fixedly connected with a motor box (350) through a connecting frame. A stepper motor is installed inside the motor box (350). The motor shaft of the stepper motor is fixedly connected with a gear (351), and the gear (351) teeth mesh with the adjacent tooth blocks.

3. The guide mold adjusting device for a pipe bending machine according to claim 2, characterized in that, The center of the C-shaped strip (320) coincides with the center of the arc-shaped strip (310).

4. The guide mold adjusting device for a pipe bending machine according to claim 2, characterized in that, The distance between the two ends of the C-shaped strip (320) is less than the distance between the two ends of the arc-shaped strip (310).

5. The guide mold adjusting device for a pipe bending machine according to claim 2, characterized in that, The drive mechanism (400) includes: Multiple cylinders (410) are fixedly connected to the top of the motor box (350), and an L-shaped frame is provided above the multiple cylinders (410). The movable end of any cylinder (410) is fixedly connected to the long arm of the L-shaped frame. The top surface of the rail (420) is fixedly connected to the short arm of the L-shaped frame; Both sliders (430) are slidably engaged inside the rail (420), and each slider (430) is fixedly connected to a connecting rope (431); Two counterweight rods (440) are rotatably connected at one end to the outer walls of the two cylinders (340), and two connecting ropes (431) are fixedly connected to the outer walls of the two counterweight rods (440).

6. The guide die adjusting device for a pipe bending machine according to claim 5, characterized in that, Both sliders (430) are C-shaped.

7. The guide mold adjusting device for a pipe bending machine according to claim 5, characterized in that, The connecting rope (431) is a PE braided line.

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