A rapid blanking die for building mechanical and electrical pipes

Abstract

The present invention provides a rapid blanking die for building mechanical and electrical pipes, which relates to the technical field of pipe processing, and includes: an assembly base, and two groups of L-shaped frames are fixedly arranged on both sides of the assembly base; two groups of fixed conveying groups are fixedly arranged on both sides of the top of the assembly base, and two groups of lower conduit rollers are rotatably arranged in the middle of the top of the fixed conveying groups, and a driving motor is fixedly arranged outside the rear fixed conveying group. The four groups of lower conduit rollers are synchronously driven through a set of chains and are synchronously driven by the driving motor; the present invention is provided with an upper inner die and a lower inner die, which provides a protective die that is convenient for assembly and replacement. The upper inner die and the lower inner die can be pre-customized into different sizes and disassembled and replaced according to the needs of different pipes. Through positioning with positioning pins, the assembly can be achieved by using a closed threaded cover to close the pin holes to limit the positioning pins, which is convenient for disassembly and assembly, and solves the problem that the existing die is inconvenient for assembly and replacement.

Description

Technical Field

[0001] The present invention relates to the technical field of pipe processing, and particularly relates to a rapid blanking die for building mechanical and electrical pipes. Background Art

[0002] Pipes used in construction generally need to be shaped according to construction requirements. They have multiple branches, so it is necessary to open holes and weld different branch pipes to achieve shunt connection. Pipe holes are cut out by blanking, and then branch pipes are welded outside the pipe holes for use. Generally, a die is used to position the pipe for blanking.

[0003] The currently used blanking devices have the following disadvantages:

[0004] 1. Conventional dies only fix the pipe, which is inconvenient for protecting the pipe. There is a lack of a protective die that is convenient for assembly and replacement, and the pipe is not protected during the blanking process to prevent the pipe from deforming.

[0005] 2. There is a lack of a combined conveying structure with stable pressure, which is inconvenient for automatically conveying the pipe to the appropriate position.

[0006] 3. It is inconvenient to fix the pipe with a synchronous combined die, and the synchronous control effect is lacking. Summary of the Invention

[0007] In view of this, in order to overcome the above deficiencies in the prior art, the present invention provides a rapid blanking die for building mechanical and electrical pipes.

[0008] The present invention provides a rapid blanking die for building mechanical and electrical pipes, which specifically includes: an assembly base, and two groups of L-shaped frames are fixedly arranged on both sides of the assembly base; two groups of fixed conveying groups are fixedly arranged on both sides of the top of the assembly base. Two lower conduit rollers are rotatably arranged in the middle of the top of the fixed conveying groups. A driving motor is fixedly arranged outside the rear fixed conveying group. The four lower conduit rollers are synchronously driven by a chain and are synchronously driven by the driving motor; an installation frame is fixedly arranged in the middle of the top of the assembly base. Two groups of force pistons and two groups of anti-push pistons are fixedly arranged on the bottom surfaces above both sides of the installation frame. The force piston and the adjacent anti-push piston are communicated; a first electric cylinder is fixedly arranged in the middle of the top of the assembly base. The telescopic end of the first electric cylinder is fixedly provided with a lower outer die. The telescopic end of the force piston is fixedly connected to the lower outer die; the telescopic end of the anti-push piston is fixedly provided with an upper outer die, and the upper outer die is aligned with the lower outer die; a trapezoidal top seat is fixedly arranged on the top of the upper outer die. A third electric cylinder is fixedly arranged in the middle of the trapezoidal top seat. The bottom telescopic end of the third electric cylinder is fixedly provided with a blanking part.

[0009] Optionally, hydraulic pistons are fixedly arranged on the tops of the L-shaped frames. The telescopic ends of the hydraulic pistons are fixedly provided with moving support groups. Guide rods are arranged on the tops of the moving support groups. Two upper conduit rollers are rotatably arranged inside the bottoms of the moving support groups.

[0010] Optionally, the outsides of the upper and lower conduit rollers are both in a ring groove structure, and rubber strips are evenly embedded in the outer surface of the ring groove structure; the rubber strips outside the upper and lower conduit rollers can increase the friction force.

[0011] Optionally, a control piston and a second electric cylinder are fixedly arranged on the right side of the assembly base, and the telescopic end of the second electric cylinder is fixedly connected to the telescopic end of the control piston; a pipeline is connected to the outer end of the control piston to an electromagnetic valve, and the other end of the electromagnetic valve is connected to two hydraulic pistons through pipelines; driving two hydraulic pistons by a group of control pistons can maintain pressure balance; open the electromagnetic valve, extend the second electric cylinder to squeeze the control piston, input the hydraulic oil in the control piston into the hydraulic pistons, expand the moving support group, clamp the pipeline by the upper and lower conduit rollers, and provide a conveying effect, and close the electromagnetic valve to maintain the pressure; then drive the lowermost rear conduit roller to rotate by a driving motor, and the four groups of lower conduit rollers rotate synchronously with the chain to automatically convey the pipeline.

[0012] Optionally, a lower inner mold is arranged in the lower outer mold. Alignment pin holes are opened on both sides of the lower outer mold and the lower inner mold, and positioning pins are arranged in the pin holes for fixed connection. Thread grooves are opened outside the pin holes of the lower outer mold, and closed thread covers for wrapping the positioning pins are fixedly arranged in the thread grooves through threaded connection; when the lower outer mold rises, it squeezes the force-bearing piston, inputs the hydraulic oil in the force-bearing piston into the anti-push piston, expands the anti-push piston, pushes the upper outer mold downward, and uses the upper inner mold to contact the lower inner mold to simultaneously wrap the closed pipeline, providing a supporting force for the outside of the pipeline to prevent the pipeline from deforming.

[0013] Optionally, an upper inner mold is fixedly arranged inside the upper outer mold by wrapping the positioning pin; circular through holes are opened in the middle of the upper outer mold and the upper inner mold, and the angular circular through hole in the upper inner mold is larger than the through hole in the middle of the upper outer mold; the upper outer mold and the upper inner mold, as well as the lower outer mold and the lower inner mold, are all combined structures, and the assembly is realized by positioning with the positioning pin and restricting the positioning pin by closing the pin hole with the closed thread cover. The upper inner mold and the lower inner mold can be pre-customized to different sizes and disassembled and replaced according to the needs of different pipelines.

[0014] Optionally, the blanking part fits and slides in the middle through hole of the upper outer mold.

[0015] Optionally, a conical groove is opened at the bottom of the blanking part.

[0016] The beneficial effects are as follows:

[0017] 1. The present invention is provided with an upper inner mold and a lower inner mold, which provides a protective mold that is convenient for assembly and replacement. The upper inner mold and the lower inner mold can be pre-customized to different sizes and disassembled and replaced according to the needs of different pipelines. Assembly can be achieved by positioning with positioning pins and restricting the positioning pins by closing the threaded cover of the pin hole, which is convenient for disassembly and assembly; the angular circular through hole in the upper inner mold is larger than the through hole in the middle of the upper outer mold, which can avoid die collision.

[0018] 2. An upper guide roller and a lower guide roller are provided, which provides a combined conveying structure with stable pressure. The hydraulic oil in the control piston is input into the hydraulic piston to expand the moving support group. The pipeline is clamped by the upper guide roller and the lower guide roller, and a conveying effect is provided. Closing the solenoid valve can maintain the pressure; then, the driving motor drives the lower guide roller at the rearmost side to rotate, and the four groups of lower guide rollers rotate synchronously with the chain, so as to automatically convey the pipeline. In addition, the rubber strips outside the upper guide roller and the lower guide roller can increase the friction force, which is convenient for conveying and feeding.

[0019] 3. An installation rack is provided, which provides the function of synchronously combining molds. When the lower outer mold is raised, the lower outer mold presses the force-receiving piston, and the hydraulic oil in the force-receiving piston is input into the anti-pushing piston to expand the anti-pushing piston, and the upper outer mold is pushed downward. The upper inner mold contacts the lower inner mold and simultaneously wraps and closes the pipeline to provide a supporting force for the outside of the pipeline to avoid pipeline deformation. Then, the third electric cylinder is extended to move the punching part downward, and the punching part is used to punch the pipeline to open the pipeline. The processing stability is strong and the punching is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Shows a three-dimensional structural schematic diagram according to an embodiment of the present invention;

[0021] Figure 2 Shows an axonometric structural schematic diagram according to an embodiment of the present invention;

[0022] Figure 3 Shows a side elevation structural schematic diagram according to an embodiment of the present invention;

[0023] Figure 4 Shows a schematic diagram of the usage state structure according to an embodiment of the present invention;

[0024] Figure 5 Shows an embodiment according to the present invention Figure 4 of the side view structural schematic diagram;

[0025] Figure 6 Shows a three-dimensional sectional structural schematic diagram of the upper outer mold according to an embodiment of the present invention;

[0026] Figure 7 Shows an assembly structural schematic diagram of the positioning pin according to an embodiment of the present invention;

[0027] Figure 8 shows a schematic structural diagram of another angle according to an embodiment of the present invention Figure 7

[0028] List of reference numerals

[0029] 1. Assembly base; 101. First electric cylinder; 2. L-shaped frame; 201. Hydraulic piston; 202. Moving support group; 203. Upper guide roller; 3. Fixed conveying group; 301. Lower guide roller; 302. Driving motor; 4. Control piston; 5. Second electric cylinder; 6. Solenoid valve; 7. Placement frame; 701. Force-bearing piston; 702. Counter-pushing piston; 8. Lower outer mold; 801. Lower inner mold; 9. Positioning pin; 10. Sealing threaded cap; 11. Upper outer mold; 1101. Upper inner mold; 12. Trapezoidal top seat; 13. Third electric cylinder; 14. Blanking part Detailed implementation manners

[0030] In order to make the objectives, solutions, and advantages of the technical solutions of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments of the present invention

[0031] Embodiment 1:

[0032] Please refer to Figures 1 to 8 as shown

[0033] The present invention provides a rapid blanking die for building mechanical and electrical pipes, including: an assembly base 1, with two groups of L-shaped frames 2 fixedly arranged on both sides of the assembly base 1; two groups of fixed conveying groups 3 are fixedly arranged on both sides of the top of the assembly base 1, and two groups of lower guide rollers 301 are rotatably arranged in the middle of the top of the fixed conveying groups 3. A driving motor 302 is fixedly arranged outside the rear fixed conveying group 3. The four groups of lower guide rollers 301 are synchronously driven through a chain and synchronously driven by the driving motor 302; a placement frame 7 is fixedly arranged in the middle of the top of the assembly base 1, and two groups of force-bearing pistons 701 and two groups of counter-pushing pistons 702 are fixedly arranged on the bottom surfaces above both sides of the placement frame 7, and the force-bearing piston 701 communicates with the adjacent counter-pushing piston 702; a first electric cylinder 101 is fixedly arranged in the middle of the top of the assembly base 1, and a lower outer mold 8 is fixedly arranged at the telescopic end of the first electric cylinder 101. The telescopic end of the force-bearing piston 701 is fixedly connected to the lower outer mold 8; the telescopic end of the counter-pushing piston 702 is fixedly arranged with an upper outer mold 11, and the upper outer mold 11 is aligned with the lower outer mold 8; a trapezoidal top seat 12 is fixedly arranged on the top of the upper outer mold 11, a third electric cylinder 13 is fixedly arranged in the middle of the trapezoidal top seat 12, and a blanking part 14 is fixedly arranged at the bottom telescopic end of the third electric cylinder 13

[0034] ​Among them, hydraulic pistons 201 are fixedly arranged at the tops of the L-shaped frames 2. Moving support groups 202 are fixedly arranged at the telescopic ends of the hydraulic pistons 201. Guide rods are arranged at the tops of the moving support groups 202. Two groups of upper conduit rollers 203 are rotatably arranged on the inner sides of the bottoms of the moving support groups 202.

[0035] Among them, the exteriors of the upper conduit rollers 203 and the lower conduit rollers 301 are both of an annular groove structure, and rubber strips are equidistantly embedded on the outer surface of the annular groove structure. During use, the pipeline to be blanked is passed through between the upper conduit rollers 203 and the lower conduit rollers 301.

[0036] Among them, a control piston 4 and a second electric cylinder 5 are fixedly arranged on the right side of the assembly base 1. The telescopic end of the second electric cylinder 5 is fixedly connected to the telescopic end of the control piston 4. A pipeline is connected to the outer end of the control piston 4 and is connected to an electromagnetic valve 6. The other end of the electromagnetic valve 6 is connected to two groups of hydraulic pistons 201 through pipelines. Driving two groups of hydraulic pistons 201 by one control piston 4 can maintain pressure balance.

[0037] Among them, a lower inner mold 801 is arranged inside the lower outer mold 8. Alignment pin holes are opened on both sides of the lower outer mold 8 and the lower inner mold 801, and positioning pins 9 are arranged and fixedly connected inside the pin holes. Threaded grooves are opened outside the pin holes of the lower outer mold 8, and closed threaded caps 10 for wrapping the positioning pins 9 are fixedly arranged through threaded connections in the threaded grooves.

[0038] Among them, an upper inner mold 1101 is fixedly arranged inside the upper outer mold 11 by wrapping the positioning pin 9. Circular through holes are opened in the middle of both the upper outer mold 11 and the upper inner mold 1101. The angular circular through hole in the upper inner mold 1101 is larger than the through hole in the middle of the upper outer mold 11. During use, the pipeline to be blanked is passed through between the upper inner mold 1101 and the lower inner mold 801.

[0039] Among them, the blanking part 14 fits and slides inside the middle through hole of the upper outer mold 11.

[0040] Among them, a conical groove is opened at the bottom of the blanking part 14, which is convenient for blanking.

[0041] As Figures 1-5 shown, during processing, the pipeline to be blanked is passed through between the upper conduit rollers 203 and the lower conduit rollers 301, and between the upper inner mold 1101 and the lower inner mold 801.

[0042] Open the solenoid valve 6, extend the second electric cylinder 5 to squeeze the control piston 4, input the hydraulic oil in the control piston 4 into the hydraulic piston 201, expand the movable support group 202, clamp the pipeline through the upper conduit roller 203 and the lower conduit roller 301, and provide a conveying effect. Closing the solenoid valve 6 can maintain the pressure; then use the drive motor 302 to drive the rearmost lower conduit roller 301 to rotate, and the four groups of lower conduit rollers 301 rotate synchronously with the chain to automatically convey the pipeline; the rubber strips outside the upper conduit roller 203 and the lower conduit roller 301 can increase the friction force.

[0043] Embodiment 2:

[0044] On the basis of Embodiment 1, as Figures 6-8 shown, start the first electric cylinder 101 to raise the lower outer mold 8, make the lower inner mold 801 contact the pipeline, and at the same time the lower outer mold 8 squeezes the force-bearing piston 701, input the hydraulic oil in the force-bearing piston 701 into the reverse-pushing piston 702, expand the reverse-pushing piston 702, push the upper outer mold 11 downward, use the upper inner mold 1101 to contact the lower inner mold 801, and at the same time wrap and seal the pipeline to provide a supporting force for the outside of the pipeline to prevent the pipeline from deforming;

[0045] The threaded cover 10 can be made into different shapes, and a matching wrench tool is used for disassembly and assembly;

[0046] Then, extend the third electric cylinder 13 to move the punching part 14 downward, use the punching part 14 to punch the pipeline, and open the pipeline.

[0047] Embodiment 3:

[0048] On the basis of Embodiment 1, the upper outer mold 11, the upper inner mold 1101, the lower outer mold 8, and the lower inner mold 801 are all combined structures, and are positioned and installed through the positioning pins 9, which is convenient for disassembly. The assembly is realized by using the closed threaded cover 10 to close the pin holes to limit the positioning pins 9;

[0049] The upper inner mold 1101 and the lower inner mold 801 can be made into different sizes through pre-customization, and are disassembled and replaced according to the needs of different pipelines;

[0050] The upper conduit roller 203 and the lower conduit roller 301 fix the pipeline by pressure and do not need to be fully adapted to the pipeline to improve the applicability, and pipelines of different sizes can be punched.

[0051] The specific usage method and function of this embodiment: In the present invention, when in use, the pipeline to be punched is passed through between the upper conduit roller 203 and the lower conduit roller 301, and between the upper inner mold 1101 and the lower inner mold 801;

[0052] Open the solenoid valve 6, extend the second electric cylinder 5 to squeeze the control piston 4, input the hydraulic oil in the control piston 4 into the hydraulic piston 201, expand the movable support group 202, clamp the pipeline through the upper guide roller 203 and the lower guide roller 301, and provide a conveying effect. Close the solenoid valve 6 to maintain the pressure. Then, use the drive motor 302 to drive the rearmost lower guide roller 301 to rotate, and the four groups of lower guide rollers 301 rotate synchronously with the chain to automatically convey the pipeline. The rubber strips outside the upper guide roller 203 and the lower guide roller 301 can increase the friction force.

[0053] Start the first electric cylinder 101 to raise the lower outer mold 8, so that the lower inner mold 801 contacts the pipeline. At the same time, the lower outer mold 8 squeezes the force-receiving piston 701, inputs the hydraulic oil in the force-receiving piston 701 into the counter-pushing piston 702, expands the counter-pushing piston 702, pushes the upper outer mold 11 downward, uses the upper inner mold 1101 to contact the lower inner mold 801, and at the same time wraps and seals the pipeline to provide a supporting force for the outside of the pipeline to prevent the pipeline from deforming. Then, extend the third electric cylinder 13 to move the punching part 14 downward, and use the punching part 14 to punch the pipeline to open the pipeline.

[0054] The upper outer mold 11, the upper inner mold 1101, the lower outer mold 8, and the lower inner mold 801 are all combined structures. They are positioned by the positioning pins 9, and the assembly is realized by using the closed threaded cover 10 to close the pin holes to limit the positioning pins 9. The upper inner mold 1101 and the lower inner mold 801 can be pre-customized to different sizes and disassembled and replaced according to the needs of different pipelines. The upper guide roller 203 and the lower guide roller 301 fix the pipeline by pressure and do not need to be fully adapted to the pipeline to improve the applicability, and can punch pipelines of different sizes.

Claims

1. A rapid blanking die for building mechanical and electrical pipes, characterized in that it includes: An assembly base (1), with two groups of L-shaped frames (2) fixedly arranged on both sides of the assembly base (1); two groups of fixed conveying groups (3) are fixedly arranged on both sides of the top of the assembly base (1). Two lower conduit rollers (301) are rotatably arranged in the middle of the top of the fixed conveying group (3). A driving motor (302) is fixedly arranged outside the rear fixed conveying group (3). The four lower conduit rollers (301) are synchronously driven by a chain and synchronously driven by the driving motor (302); An installation frame (7) is fixedly arranged in the middle of the top of the assembly base (1). Two groups of force-receiving pistons (701) and two groups of anti-pushing pistons (702) are fixedly arranged on the bottom surfaces above both sides of the installation frame (7). The force-receiving piston (701) communicates with the adjacent anti-pushing piston (702); A first electric cylinder (101) is fixedly arranged in the middle of the top of the assembly base (1). The telescopic end of the first electric cylinder (101) is fixedly provided with a lower outer mold (8). The telescopic end of the force-receiving piston (701) is fixedly connected to the lower outer mold (8); The telescopic end of the anti-pushing piston (702) is fixedly provided with an upper outer mold (11). The upper outer mold (11) is aligned with the lower outer mold (8); A trapezoidal top seat (12) is fixedly arranged on the top of the upper outer mold (11). A third electric cylinder (13) is fixedly arranged in the middle of the trapezoidal top seat (12). The bottom telescopic end of the third electric cylinder (13) is fixedly provided with a blanking part (14), Hydraulic pistons (201) are fixedly arranged on the tops of the L-shaped frames (2). The telescopic ends of the hydraulic pistons (201) are fixedly provided with moving support groups (202). Guide rods are arranged on the tops of the moving support groups (202). Two upper conduit rollers (203) are rotatably arranged on the inner sides of the bottoms of the moving support groups (202), The outsides of the upper conduit rollers (203) and the lower conduit rollers (301) are both of an annular groove structure, and rubber strips are evenly distributed and embedded on the outer surface of the annular groove structure, A control piston (4) and a second electric cylinder (5) are fixedly arranged on the right side of the assembly base (1). The telescopic end of the second electric cylinder (5) is fixedly connected to the telescopic end of the control piston (4); A pipeline is connected to the outer end of the control piston (4) with a solenoid valve (6). The other end of the solenoid valve (6) is connected to two hydraulic pistons (201) through a pipeline, A lower inner mold (801) is arranged inside the lower outer mold (8). Alignment pin holes are opened on both sides of the lower outer mold (8) and the lower inner mold (801). A positioning pin (9) is arranged in the pin holes for fixed connection. Threaded grooves are opened on the outside of the pin holes of the lower outer mold (8). Sealing threaded covers (10) for wrapping the positioning pin (9) are fixedly arranged through threaded connection in the threaded grooves, An upper inner mold (1101) is fixedly arranged inside the upper outer mold (11) by wrapping the positioning pin (9); Circular through holes are opened in the middle of the upper outer mold (11) and the upper inner mold (1101). The angular circular through hole in the upper inner mold (1101) is larger than the through hole in the middle of the upper outer mold (11), Open the solenoid valve, extend the second electric cylinder to squeeze the control piston, input the hydraulic oil in the control piston into the hydraulic piston, expand the movable support group, clamp the pipeline through the upper conduit roller and the lower conduit roller, and provide a conveying effect, then close the solenoid valve to maintain the pressure; afterwards, use the driving motor to drive the lowermost rear lower conduit roller to rotate, and the four groups of lower conduit rollers rotate synchronously with the chain to automatically convey the pipeline; the rubber strips outside the upper conduit roller and the lower conduit roller increase the friction force. Start the first electric cylinder to raise the lower outer mold, make the lower inner mold contact the pipeline, at the same time, the lower outer mold squeezes the force-bearing piston, input the hydraulic oil in the force-bearing piston into the counter-pushing piston, expand the counter-pushing piston, push the upper outer mold downward, use the upper inner mold to contact the lower inner mold, and at the same time wrap and seal the pipeline to provide a supporting force for the outside of the pipeline to prevent the pipeline from deforming, then extend the third electric cylinder to move the punching part downward, and use the punching part to punch the pipeline to open the pipeline.

2. The rapid blanking die for building electrical and mechanical pipes according to claim 1, characterized in that The punching part (14) fits and slides in the middle through hole of the upper outer mold (11).

3. The rapid blanking die for building electrical and mechanical pipes according to claim 2, characterized in that The bottom of the punching part (14) is provided with a conical groove.

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