A high-efficiency processing system for reducing pipes

Abstract

The application discloses a high-efficiency processing system for a reducer, which comprises a bottom plate, vertical rods fixedly arranged on the bottom plate near four corners, cylinder bodies fixedly arranged on the upper ends of the vertical rods, piston bodies slidably arranged in the vertical rods, piston rods arranged on the lower ends of the piston bodies and extending downwards, and die heads in the shape of inverted cones arranged on the lower ends of the piston rods; a moving plate is slidably arranged on the four vertical rods in the vertical direction, a convex sleeve for inserting the die heads and the piston rods is arranged at the middle position of the moving plate, a first spring for forcing the moving plate to move upwards is arranged below the moving plate on each vertical rod; a moving ring is sleeved on the piston rod, a second spring is arranged on the piston rod between the moving ring and the lower end of the piston body; and a locking transmission mechanism matched with the vertical rods, the die heads and the piston rods is arranged on the moving plate; the high-efficiency processing system for the reducer is simple in structure and can efficiently realize the processing of the reducer.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of reducing pipe, in particular to a reducing pipe efficient processing system. BACKGROUND

[0002] The reducing pipe is also called size head pipe, which is commonly used for connecting two pipes with different diameters. The reducing pipe is divided into concentric reducing pipe and eccentric reducing pipe. The eccentric reducing pipe refers to the reducing pipe with the center not on the same straight line. The concentric reducing pipe refers to the reducing pipe with the center on the same straight line. The forming process commonly used for the reducing pipe is necking and pressing, expanding and pressing, or necking and expanding and pressing. For some specifications of the reducing pipe, stamping forming can also be used. The concentric reducing pipe is widely used due to its corrosion resistance and wear resistance, and is particularly used as a high-strength metal material in the construction industry. However, after the diameter of the existing concentric reducing pipe is expanded, the reducing pipe often adheres to the mold, and cannot be automatically demolded. Workers need to use an anvil and other tools to control the oil cylinder through a sequential process to complete the demolding of the reducing pipe. In this process, since the reducing pipe needs to be heated during processing, workers are prone to burns during the use of the anvil. Manual demolding not only consumes labor, but also greatly affects the production efficiency of the reducing pipe. At the same time, in order to process reducing pipes with different depths, the traditional expanding equipment often needs to extend the mold, which is more detrimental to product demolding. SUMMARY

[0003] The purpose of the present application is to provide a reducing pipe efficient processing system which is not only simple in structure but also can efficiently realize the processing of the reducing pipe.

[0004] To achieve the above purpose, the present application provides the following technical scheme: a reducing pipe efficient processing system, comprising a bottom plate, vertical rods are fixedly arranged on the bottom plate near four corners, a cylinder body is fixedly arranged at the upper end of each vertical rod, a piston body is slidably connected in the vertical direction in the cylinder body, a piston rod extending downward is arranged at the lower end of the piston body, and a mold head in the shape of an inverted cone is arranged at the lower end of the piston rod; a moving plate is slidably arranged on each vertical rod in the vertical direction, a convex sleeve for inserting the mold head and the piston rod is arranged at the middle position of the moving plate, and a first spring for forcing the moving plate to move upward is arranged below the moving plate on each vertical rod; a moving ring is sleeved on the piston rod, a second spring is sleeved on the piston rod between the moving ring and the lower end of the piston body, the upper end of the second spring is fixedly connected with the lower end of the piston body, and the lower end of the second spring is fixedly connected with the moving ring, and the hardness of the second spring is greater than that of the first spring; and a locking transmission mechanism is arranged on the moving plate at each vertical rod and cooperates with the vertical rod, the mold head and the piston rod.

[0005] Furthermore, when the moving plate and piston body are in the upper position, the upper end of the cam sleeve is in close contact with the moving ring, the second spring is not compressed, the mold head is located inside the cam sleeve and above the first slider of the locking transmission mechanism, and the locking transmission mechanism is unlocked from the vertical rod; as the piston body moves downward, the mold head extends downward out of the cam sleeve and cooperates with the first slider of the locking transmission mechanism to control the gear of the locking transmission mechanism to mesh with the tooth groove on the vertical rod. As the piston body continues to move downward, the moving ring abuts against the upper end of the cam sleeve, pushing the moving plate downward to compress the first spring. When the mold head is inserted into the upper end of the pipe to be processed, as the mold head continues to move downward, the mold head expands the diameter of the pipe. When the moving plate abuts against the upper end of the pipe, the moving plate stops moving downward, and the mold head continues to insert downward into the pipe. At this time, the second spring is compressed.

[0006] After the pipe expansion process is completed, the piston body is controlled to move upward. At this time, the locking transmission mechanism locks the moving plate and the vertical rod, and the moving plate remains stationary. When the piston rod and the mold head move upward away from the pipe and move above the first slider of the locking transmission mechanism, the locking transmission mechanism controls the moving plate to unlock from the vertical rod. The moving plate moves upward under the action of the first spring. When the moving plate and the piston body are in the upper position, the high-efficiency processing system for reducing pipes resets to the initial position.

[0007] Furthermore, the locking transmission mechanism includes a moving block slidably connected to a moving plate, and a first slider extending into a protruding sleeve on the moving block; a protruding plate is provided at the end of the moving block away from the protruding sleeve on the moving plate, and a guide rod extending into the protruding plate is provided on the moving block along the direction of movement of the moving block; a third spring is provided between the protruding plate and the moving block to force the moving block to drive the first slider into the protruding sleeve; a toothed groove is provided on the outer side of the vertical rod along the axial direction of the vertical rod, and a protruding post is provided on the moving block; a gear for meshing with the toothed groove is rotatably connected to the protruding post, and a ratchet assembly is provided between the protruding post and the gear.

[0008] Furthermore, when the piston rod is inserted into the sleeve and pushes the first slider away from the sleeve, the moving block drives the gear to mesh with the tooth groove through the ratchet assembly. At this time, the moving plate can only move downward along the vertical rod. When the piston rod drives the mold head to move above the first slider, the first slider extends into the sleeve under the action of the third spring. At this time, the moving plate moves upward along the vertical rod under the action of the first spring.

[0009] Furthermore, the ratchet assembly includes a pawl, the gear has an annular groove coaxial with the protrusion, the annular groove has a ratchet groove on its outer circumference, the pawl is hinged to the outer side of the protrusion, and the outer side of the protrusion has a spring piece for forcing the pawl to abut against the ratchet groove.

[0010] Furthermore, the pawls are four in number and are evenly spaced along the circumference of the protrusion.

[0011] Further, the first slider is provided with a first inclined surface at one end of the first slider which extends into the convex sleeve, and the first inclined surface is matched with the mold head.

[0012] Further, the moving plate is provided with a T-shaped slide rail in section, and the moving block is provided with a T-shaped slide groove matched with the slide rail.

[0013] Advantages

[0014] Compared with the prior art, the technical scheme of the present application has the following advantages:

[0015] 1. The locking transmission mechanism is matched with the moving plate, so that after the step pipe is machined, the mold head can be directly lifted, the locking transmission mechanism cannot lift the moving plate, and the step pipe is separated from the mold head by the moving plate. When the mold head is lifted to a set height, the locking transmission mechanism is disengaged from the gear groove, so that the moving plate is automatically reset. The process of manual demolding is effectively replaced, so that workers do not need to use an anvil or the like for demolding, thereby protecting the safety of workers and reducing the labor intensity.

[0016] 2. The locking transmission mechanism is matched with the moving plate, so that after the step pipe is machined, the equipment itself can complete the demolding of the step pipe, replacing the manual demolding step, greatly improving the production efficiency of the equipment, and improving the production capacity of the equipment.

[0017] 3. The moving plate, the piston rod and the mold head are provided, so that the equipment can meet the machining requirements of any depth, and the equipment can still automatically demold regardless of the machining depth, and different diameter expansion angles can be completed by replacing the head of the mold. Therefore, the application range of the equipment is greatly increased. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a three-dimensional view of the initial state of the present application;

[0019] Figure 2 is a three-dimensional view of the initial state of the present application; Figure 1

[0020] Figure 3 is a three-dimensional view of the initial state of the present application; Figure 1

[0021] Figure 4 is a three-dimensional view of the initial state of the present application;

[0022] Figure 5 is a three-dimensional view of the initial state of the present application; ​​

[0023] Figure 6 Three-dimensional view of the local section of the different pipe of the present application when different machining depth is completed;

[0024] Figure 7 Three-dimensional view of the local section of the present application when the pipe is expanded and demoulded;

[0025] Figure 8 Three-dimensional view of the local section of the present application when the first slider is reset after demoulding;

[0026] Figure 9 Three-dimensional view of the local section of the present application when the equipment is reset after pipe machining is completed;

[0027] Figure 10 Three-dimensional view of the local section of the present application of the moving plate and the first slider. DETAILED DESCRIPTION

[0028] Please refer to Figures 1-10 As shown in the figure, an efficient processing system for reducing pipe diameter, comprising a base plate 31, vertical rods 311 are fixed on the base plate 31 near four corners, a cylinder body 11a is fixed on the upper end of the vertical rod 311, a piston body 111 is connected to the cylinder body 11a in the vertical direction, a piston rod 111a extending downward is arranged on the lower end of the piston body 111, and a die head 1111 in the shape of an inverted cone is arranged on the lower end of the piston rod 111a; a moving plate 14 is connected to the four vertical rods 311 in the vertical direction, a convex sleeve 14a for inserting the die head 1111 and the piston rod 111a is arranged on the middle position of the moving plate 14, and a first spring 32 for forcing the moving plate 14 to move upward is arranged below the moving plate 14 on each vertical rod 311; a moving ring 13 is sleeved on the piston rod 111a, a second spring 12 is arranged between the moving ring 13 and the lower end of the piston body 111 and sleeved on the piston rod 111a, the upper end of the second spring 12 is fixedly connected to the lower end of the piston body 111, and the lower end of the second spring 12 is fixedly connected to the moving ring 13, and the hardness of the second spring 12 is greater than that of the first spring 32; a locking transmission mechanism is arranged on the moving plate 14 at each vertical rod 311 and matched with the vertical rod 311, the die head 1111 and the piston rod 111a.

[0029] When the moving plate 14 and piston body 111 are in the upper position, the upper end of the sleeve 14a is in close contact with the moving ring 13, the second spring 12 is not compressed, the mold head 1111 is located inside the sleeve 14a and above the first slider 211 of the locking transmission mechanism, and the locking transmission mechanism is unlocked from the vertical rod 311; as the piston body 111 moves downward, the mold head 1111 extends downward out of the sleeve 14a and cooperates with the first slider 211 of the locking transmission mechanism to control the gear 22 of the locking transmission mechanism to mesh with the tooth groove 3111 on the vertical rod 311. As the piston body 111 continues to move downward, the moving ring 13 abuts against the upper end of the sleeve 14a, pushing the moving plate 14 downward to compress the first spring 32. When the mold head 1111 is inserted into the upper end of the pipe to be processed 41, as the mold head 1111 continues to move downward... During the expansion process, the mold head 1111 expands the diameter of the pipe fitting. When the moving plate 14 abuts against the upper end of the pipe fitting 41, the moving plate 14 stops moving downward, and the mold head 1111 continues to insert downward into the pipe fitting 41. At this time, the second spring 12 is compressed. After the expansion process of the pipe fitting 41 is completed, the piston body 111 is controlled to move upward. At this time, the locking transmission mechanism locks the moving plate 14 and the vertical rod 311, and the moving plate 14 is fixed. When the piston rod 111a and the mold head 1111 move upward away from the pipe fitting and move to the top of the first slider 211 of the locking transmission mechanism, the locking transmission mechanism controls the moving plate 14 to unlock from the vertical rod 311. The moving plate 14 moves upward under the action of the first spring 32. When the moving plate 14 and the piston body 111 are in the upper position, the high-efficiency processing system for reducing pipes resets to the initial position.

[0030] The locking transmission mechanism comprises a moving block 21 which is slidingly connected to the moving plate 14, and a first sliding block 211 is arranged on the moving block 21 and extends into the convex sleeve 14a; a convex plate 142 is arranged on the moving plate 14 at the end of the moving block 21 away from the convex sleeve 14a, a guide sliding rod 213 extending into the convex plate 142 is arranged on the moving block 21 along the moving direction of the moving block 21, and a third spring 24 is arranged between the convex plate 142 and the moving block 21 and used for forcing the moving block 21 to drive the first sliding block 211 to insert into the convex sleeve 14a; a gear slot 3111 is arranged on the outer side of the vertical rod 311 along the axial direction of the vertical rod 311, a convex column 21a is arranged on the moving block 21, a gear 22 used for engaging with the gear slot 3111 is rotatably connected to the convex column 21a, and a ratchet assembly is arranged between the convex column 21a and the gear 22. An end of the first sliding block 211 extending into the convex sleeve 14a is provided with a first inclined surface 2111 matched with the mold head 1111. The moving plate 14 is provided with a T-shaped slide rail 141 in cross section, and the moving block 21 is provided with a T-shaped slide groove 212 matched with the slide rail 141. When the piston rod 111a inserts into the convex sleeve 14a and pushes the first sliding block 211 away from the convex sleeve 14a, the moving block 21 drives the gear 22 to engage with the gear slot 3111 through the ratchet assembly, at this time, the moving plate 14 can only move downward along the vertical rod 311; when the piston rod 111a drives the mold head 1111 to move above the first sliding block 211, the first sliding block 211 extends into the convex sleeve 14a under the action of the third spring 24, at this time, the moving plate 14 moves upward along the vertical rod 311 under the action of the first spring 32.

[0031] The ratchet assembly comprises a pawl 23, a ring groove coaxial with the convex column 21a is arranged in the gear 22, a ratchet groove 22a is arranged on the outer side of the ring groove in the circumferential direction, the pawl 23 is hinged to the outer side of the convex column 21a, and a spring 24a is arranged on the outer side of the convex column 21a and used for forcing the pawl 23 to abut against the ratchet groove 22a. The pawl 23 is four and is arranged uniformly along the circumferential direction of the convex column 21a.

[0032] The working process of the high-efficiency reducer machining system of the embodiment comprises the following steps:

[0033] Step one, pressing down: when the pipe to be machined 41 is already positioned directly below the mold head 1111, as shown in FIG. 2, the piston rod 111a is pushed to the left along the horizontal direction, and the piston rod 111a is inserted into the convex sleeve 14a, at this time, the first sliding block 211 is forced to move away from the convex sleeve 14a by the third spring 24, and the moving plate 14 is forced to move downward along the vertical rod 311 by the first spring 32. Figure 1The initial state is shown, the oil cylinder 11 is started, so that the piston body 111 drives the piston rod 111a to push the mold head 1111 down, and the second spring 12 is not compressed, and the moving ring 13 fixedly connected with the second spring 12 and slidingly connected with the piston rod 111a is tightly attached to the convex sleeve 14a, and the moving plate 14 is slidingly connected with the vertical rod 311 of the bottom plate 31 through the hole 143, and the convex sleeve 14a is also slidingly connected with the piston rod 111a. When the piston rod 111a is pressed down, the second spring 12 fixedly connected with the piston rod 111a at the other end starts to push the moving ring 13, so that the moving plate 14 starts to descend together, and the compressed first spring 32 at the initial state starts to be compressed again. The moving block 21 is slidingly connected with the sliding rail 141 of the moving plate 14 through the sliding groove 212, and the gear 22 is also rotationally connected with the moving block 21 through the convex column 21a. At this time, because the piston rod 111a pushes the first sliding block 211 out of the convex sleeve 14a, the gear 22 is engaged with the tooth groove 3111 of the bottom plate 31, and because of the setting direction of the pawl 23 and the elastic sheet 24a, the moving plate 14 rotates during the descending process, and the gear 22 rotates due to the action of the tooth groove 3111. The state is shown as Figure 2 The piston rod 111a is continuously pressed down, and the mold head 1111 starts to push the pipe 41, and the state is shown as Figure 4 The piston rod 111a is continuously pressed down, and the mold head 1111 starts to push the pipe 41, and the state is shown as Figure 5 The piston rod 111a is continuously pressed down, and the mold head 1111 starts to push the pipe 41, and the state is shown as Figure 6 The piston rod 111a is continuously pressed down, and the mold head 1111 starts to push the pipe 41, and the state is shown as

[0034] Step two, demolding: when the pipe 41 is expanded, the oil cylinder 11 is directly controlled to shrink, so that the piston body 111 drives the piston rod 111a upwards, and the piston rod 111a drives the mold head 1111 to retract. At this time, because the first sliding block 211 slidingly arranged in the groove hole 144 of the convex sleeve 14a is still pressed by the piston rod 111a, the gear 22 is still engaged with the tooth groove 3111, so that the moving plate 14 cannot move upwards due to the pawl 23 in the gear 22. Subsequently, the pipe 41 is separated from the mold head 1111 because it is pressed by the moving plate 14, and the state is shown as Figure 7As shown, the equipment has now completed the demolding of the pipe fitting 41. The third spring 24 is mounted on the guide rod 213 of the moving block 21, and one end is abutted by the protrusion 142. When the first slider 211 is abutted by the piston rod 111a, the third spring 24 is in a compressed state. At this time, as the piston rod 111a continues to rise, it no longer abuts the first slider 211, and the third spring 24 pushes the moving block 21 to slide towards the axis of the piston rod 111a. Thus, the gear 22 disengages from the tooth groove 3111, as shown in the local state. Figure 10 As shown. At this time, because gear 22 disengages, the moving plate 14 begins to rise under the action of the first spring 32. However, due to the damping between the vertical rod 311 and the moving plate 14, the rising speed of the piston rod 111a is kept consistent with that of the moving plate 14. When the piston rod 111a is fully retracted, the equipment returns to its initial state, at which point the pipe 41 is in... Figure 9 The state shown indicates that the process can proceed to the next step.

[0035] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A high-efficiency processing system for reducing pipes, characterized in that, The device includes a base plate with vertical rods fixed near its four corners. A cylinder is fixed to the upper end of each vertical rod, and a piston is slidably connected to the cylinder along the vertical direction. A piston rod extending downwards is located at the lower end of each piston rod, and a mold head in the shape of an inverted cone is located at the lower end of the piston rod. Moving plates slide along the vertical direction on the four vertical rods. A protrusion for inserting the mold head and piston rod is located in the middle of each moving plate. Each vertical rod has a first spring located below the moving plate to force it to move upwards. A moving ring is sleeved on the piston rod. A second spring, sleeved on the piston rod, is located between the moving ring and the lower end of the piston. The upper end of the second spring is fixedly connected to the lower end of the piston, and the lower end is fixedly connected to the moving ring. The second spring has a higher stiffness than the first spring. A locking transmission mechanism that cooperates with the vertical rod, mold head, and piston rod is located at each vertical rod on the moving plate. The locking transmission mechanism includes a movable block slidably connected to a movable plate, and a first slider extending into a protruding sleeve on the movable block. A protruding plate is provided at the end of the movable block away from the protruding sleeve on the movable plate. A guide rod extending into the protruding plate is provided along the direction of movement of the movable block. A third spring is provided between the protruding plate and the movable block to force the movable block to drive the first slider into the protruding sleeve. A toothed groove is provided on the outer side of the vertical rod along its axial direction. A protruding post is provided on the movable block, and a gear rotatably connected to the protruding post for meshing with the toothed groove is provided between the protruding post and the gear. A ratchet assembly is provided between the protruding post and the gear.

2. The high-efficiency processing system for reducing pipes according to claim 1, characterized in that, When the moving plate and piston body are in the upper position, the upper end of the cam sleeve is in close contact with the moving ring, the second spring is not compressed, the mold head is located inside the cam sleeve and above the first slider of the locking transmission mechanism, and the locking transmission mechanism is unlocked from the vertical rod; as the piston body moves downward, the mold head extends downward out of the cam sleeve and cooperates with the first slider of the locking transmission mechanism to control the gear of the locking transmission mechanism to mesh with the tooth groove on the vertical rod. As the piston body continues to move downward, the moving ring abuts against the upper end of the cam sleeve, pushing the moving plate downward to compress the first spring. When the mold head is inserted into the upper end of the pipe to be processed, as the mold head continues to move downward, the mold head expands the diameter of the pipe. When the moving plate abuts against the upper end of the pipe, the moving plate stops moving downward, and the mold head continues to insert downward into the pipe. At this time, the second spring is compressed. After the pipe expansion process is completed, the piston body is controlled to move upward. At this time, the locking transmission mechanism locks the moving plate and the vertical rod, and the moving plate remains stationary. When the piston rod and the mold head move upward away from the pipe and move above the first slider of the locking transmission mechanism, the locking transmission mechanism controls the moving plate to unlock from the vertical rod. The moving plate moves upward under the action of the first spring. When the moving plate and the piston body are in the upper position, the high-efficiency processing system for reducing pipes resets to the initial position.

3. The high-efficiency processing system for reducing pipes according to claim 2, characterized in that, When the piston rod is inserted into the sleeve and pushes the first slider away from the sleeve, the moving block drives the gear to mesh with the tooth groove through the ratchet assembly. At this time, the moving plate can only move downward along the vertical rod. When the piston rod drives the mold head to move above the first slider, the first slider extends into the sleeve under the action of the third spring. At this time, the moving plate moves upward along the vertical rod under the action of the first spring.

4. The high-efficiency processing system for reducing pipes according to claim 3, characterized in that, The ratchet assembly includes a pawl, the gear has an annular groove coaxial with the protrusion, the annular groove has a ratchet groove on the outer circumference of the annular groove, the pawl is hinged to the outer side of the protrusion, and the outer side of the protrusion has a spring piece for forcing the pawl to abut against the ratchet groove.

5. The high-efficiency processing system for reducing pipes according to claim 4, characterized in that, The pawls are four in number and are evenly spaced along the circumference of the protrusion.

6. The high-efficiency processing system for reducing pipes according to claim 1, characterized in that, The first slider has a first inclined surface at one end that extends into the convex sleeve and mates with the mold head.

7. The high-efficiency processing system for reducing pipes according to claim 1, characterized in that, The movable plate is provided with a slide rail with a T-shaped cross section, and the movable block is provided with a T-shaped slide groove that cooperates with the slide rail.

Images